Merge remote-tracking branch 'origin/master' into ieee802154

examples/usrsocktest/.gitignore

@@ -0,0 +1,14 @@
+/Make.dep
+/.depend
+/.built
+/*.asm
+/*.obj
+/*.rel
+/*.lst
+/*.sym
+/*.adb
+/*.lib
+/*.src
+/*.hobj
+/*.exe
+/*.dSYM

examples/usrsocktest/Kconfig

@@ -0,0 +1,36 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+
+config EXAMPLES_USRSOCKTEST
+	bool "USRSOCK test example"
+	default n
+	depends on NET && NET_USRSOCK && !DISABLE_POLL
+	select NET_USRSOCK_TCP
+	select NET_USRSOCK_UDP
+	select NET_SOCKOPTS
+	select PIPES
+	---help---
+		Enable the User Socket test example. This example application runs
+		unit-tests for /dev/usrsock.
+
+if EXAMPLES_USRSOCKTEST
+
+config EXAMPLES_USRSOCKTEST_PROGNAME
+	string "Program name"
+	default "usrsocktest"
+	depends on BUILD_KERNEL
+	---help---
+		This is the name of the program that will be use when the NSH ELF
+		program is installed.
+
+config EXAMPLES_USRSOCKTEST_PRIORITY
+	int "usrsocktest task priority"
+	default 100
+
+config EXAMPLES_USRSOCKTEST_STACKSIZE
+	int "usrsocktest stack size"
+	default 4096
+
+endif

examples/usrsocktest/Make.defs

@@ -0,0 +1,39 @@
+############################################################################
+# examples/usrsocktest/Make.defs
+# Adds selected applications to apps/ build
+#
+#   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+ifeq ($(CONFIG_EXAMPLES_USRSOCKTEST),y)
+CONFIGURED_APPS += examples/usrsocktest
+endif

examples/usrsocktest/Makefile

@@ -0,0 +1,65 @@
+############################################################################
+# apps/examples/usrsocktest/Makefile
+#
+#   Copyright (C) 2008, 2010-2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+# USRSOCK Test built-in application info
+
+CONFIG_EXAMPLES_USRSOCKTEST_PRIORITY ?= SCHED_PRIORITY_DEFAULT
+CONFIG_EXAMPLES_USRSOCKTEST_STACKSIZE ?= 4096
+
+APPNAME = usrsocktest
+PRIORITY = $(CONFIG_EXAMPLES_USRSOCKTEST_PRIORITY)
+STACKSIZE = $(CONFIG_EXAMPLES_USRSOCKTEST_STACKSIZE)
+
+# NuttX USRSOCK Test
+
+ASRCS =
+CSRCS = usrsocktest_daemon.c usrsocktest_basic_connect.c
+CSRCS += usrsocktest_basic_daemon.c usrsocktest_basic_getsockname.c
+CSRCS += usrsocktest_basic_getsockopt.c usrsocktest_basic_send.c
+CSRCS += usrsocktest_basic_setsockopt.c usrsocktest_block_recv.c
+CSRCS += usrsocktest_block_send.c usrsocktest_chardev.c
+CSRCS += usrsocktest_multi_thread.c usrsocktest_noblock_connect.c
+CSRCS += usrsocktest_noblock_recv.c usrsocktest_noblock_send.c
+CSRCS += usrsocktest_nodaemon.c usrsocktest_poll.c
+CSRCS += usrsocktest_remote_disconnect.c usrsocktest_wake_with_signal.c
+
+MAINSRC = usrsocktest_main.c
+
+CONFIG_EXAMPLES_USRSOCKTEST_PROGNAME ?= usrsocktest$(EXEEXT)
+PROGNAME = $(CONFIG_EXAMPLES_USRSOCKTEST_PROGNAME)
+
+include $(APPDIR)/Application.mk

examples/usrsocktest/defines.h

@@ -0,0 +1,212 @@
+/****************************************************************************
+ * examples/usrsocktest/defines.h
+ * Common defines for all usrsock testcases
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Author: Roman Saveljev <roman.saveljev@haltian.com>
+ *           Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __EXAMPLES_USRSOCKTEST_DEFINES_H
+#define __EXAMPLES_USRSOCKTEST_DEFINES_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <assert.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define USRSOCK_NODE "/dev/usrsock"
+
+#define USRSOCKTEST_DAEMON_CONF_DEFAULTS \
+  { \
+    .max_sockets = UINT_MAX, \
+    .supported_domain = AF_INET, \
+    .supported_type = SOCK_STREAM, \
+    .supported_protocol = 0, \
+    .delay_all_responses = false, \
+    .endpoint_addr = "127.0.0.1", \
+    .endpoint_port = 255, \
+    .endpoint_block_connect = false, \
+    .endpoint_block_send = false, \
+    .endpoint_recv_avail_from_start = true, \
+    .endpoint_recv_avail = 4, \
+  }
+
+/* Test case macros */
+
+#define utest_match(type, should_be_value, test_value) do { \
+    type tmp_utest_test_value = (type)(test_value); \
+    type tmp_utest_should_value = (type)(should_be_value); \
+    if (!usrsocktest_assert_print_value(__func__, __LINE__, \
+                                        "(" #type ")(" #test_value ") == " \
+                                        "(" #type ")(" #should_be_value ")", \
+                                        tmp_utest_test_value, \
+                                        tmp_utest_should_value)) \
+      { \
+        usrsocktest_test_failed = true; \
+        return; \
+      } \
+  } while(false)
+
+#define utest_match_buf(should_be_valuebuf, test_valuebuf, test_valuebuflen) do { \
+    if (!usrsocktest_assert_print_buf(__func__, __LINE__, \
+                                      "memcmp(" #should_be_valuebuf ", " \
+                                                #test_valuebuf ", " \
+                                                #test_valuebuflen ") == 0", \
+                                      should_be_valuebuf, \
+                                      test_valuebuf, \
+                                      test_valuebuflen)) \
+      { \
+        usrsocktest_test_failed = true; \
+        return; \
+      } \
+  } while(false)
+
+#define RUN_TEST_CASE(g,t) do { \
+    if (usrsocktest_test_failed) \
+      { \
+        return; \
+      } \
+    usrsocktest_group_##g##_setup(); \
+    usrsocktest_test_##g##_##t(); \
+    usrsocktest_group_##g##_teardown(); \
+    if (usrsocktest_test_failed) \
+      { \
+        return; \
+      } \
+  } while (false)
+
+#define RUN_TEST_GROUP(g) do { \
+    extern const char *usrsocktest_group_##g; \
+    void usrsocktest_group_##g##_run(void); \
+    run_tests(usrsocktest_group_##g, usrsocktest_group_##g##_run); \
+  } while (false)
+
+#define TEST_GROUP(g)        const char *usrsocktest_group_##g = #g; \
+                             void usrsocktest_group_##g##_run(void)
+#define TEST_SETUP(g)        static void usrsocktest_group_##g##_setup(void)
+#define TEST_TEAR_DOWN(g)    static void usrsocktest_group_##g##_teardown(void)
+#define TEST(g,t)            static void usrsocktest_test_##g##_##t(void)
+
+#define TEST_ASSERT_TRUE(v)    utest_match(bool, true, (v))
+#define TEST_ASSERT_FALSE(v)   utest_match(bool, false, (v))
+#define TEST_ASSERT_EQUAL(e,v) utest_match(ssize_t, (e), (v))
+#define TEST_ASSERT_EQUAL_UINT8_ARRAY(e,v,s) utest_match_buf((e), (v), (s))
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct usrsocktest_daemon_conf_s
+{
+  unsigned int max_sockets;
+  int8_t supported_domain:8;
+  int8_t supported_type:8;
+  int8_t supported_protocol:8;
+  bool delay_all_responses:1;
+  bool endpoint_block_connect:1;
+  bool endpoint_block_send:1;
+  bool endpoint_recv_avail_from_start:1;
+  uint8_t endpoint_recv_avail:8;
+  const char *endpoint_addr;
+  uint16_t endpoint_port;
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+extern int usrsocktest_endp_malloc_cnt;
+extern int usrsocktest_dcmd_malloc_cnt;
+extern const struct usrsocktest_daemon_conf_s usrsocktest_daemon_defconf;
+extern struct usrsocktest_daemon_conf_s usrsocktest_daemon_config;
+
+extern bool usrsocktest_test_failed;
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+bool usrsocktest_assert_print_value(FAR const char *func,
+                                    const int line,
+                                    FAR const char *check_str,
+                                    long int test_value,
+                                    long int should_be);
+
+bool usrsocktest_assert_print_buf(FAR const char *func,
+                                  const int line,
+                                  FAR const char *check_str,
+                                  FAR const void *test_buf,
+                                  FAR const void *expect_buf,
+                                  size_t buflen);
+
+int usrsocktest_daemon_start(FAR const struct usrsocktest_daemon_conf_s *conf);
+
+int usrsocktest_daemon_stop(void);
+
+int usrsocktest_daemon_get_num_active_sockets(void);
+
+int usrsocktest_daemon_get_num_connected_sockets(void);
+
+int usrsocktest_daemon_get_num_waiting_connect_sockets(void);
+
+int usrsocktest_daemon_get_num_recv_empty_sockets(void);
+
+ssize_t usrsocktest_daemon_get_send_bytes(void);
+
+ssize_t usrsocktest_daemon_get_recv_bytes(void);
+
+int usrsocktest_daemon_get_num_unreachable_sockets(void);
+
+int usrsocktest_daemon_get_num_remote_disconnected_sockets(void);
+
+bool usrsocktest_daemon_establish_waiting_connections(void);
+
+bool usrsocktest_send_delayed_command(char cmd, unsigned int delay_msec);
+
+int usrsocktest_daemon_pause_usrsock_handling(bool pause);
+
+#endif /* __EXAMPLES_USRSOCKTEST_DEFINES_H */

examples/usrsocktest/usrsocktest_basic_connect.c

@@ -0,0 +1,488 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_basic_connect.c
+ * Basic connect tests with socket daemon
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Setup
+ *
+ * Description:
+ *   Run before every testcase
+ *
+ * Input Parameters:
+ *   dconf - test daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Setup(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+}
+
+/****************************************************************************
+ * Name: Teardown
+ *
+ * Description:
+ *   Run after every testcase
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Teardown(void)
+{
+  int ret;
+
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+/****************************************************************************
+ * Name: NotConnected
+ *
+ * Description:
+ *   Opened socket is not connected
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void NotConnected(void)
+{
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+}
+
+/****************************************************************************
+ * Name: Connect
+ *
+ * Description:
+ *   Open and connect the socket
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Connect(void)
+{
+  int ret;
+  struct sockaddr_in addr;
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Attempt reconnect to same address */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Attempt reconnect to different address */
+
+  inet_pton(AF_INET, "1.1.1.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(1);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: WrongAF
+ *
+ * Description:
+ *   Open and connect the socket with wrong AF
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void WrongAF(void)
+{
+  int ret;
+  struct sockaddr_in addr;
+
+  /* Try connect socket with wrong AF */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_UNIX;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAFNOSUPPORT, errno);
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: WrongPort
+ *
+ * Description:
+ *   Open and connect the socket with wrong port
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void WrongPort(void)
+{
+  int ret;
+  struct sockaddr_in addr;
+
+  /* Try connect socket to wrong port */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(127);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(ECONNREFUSED, errno);
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: WrongEndpoint
+ *
+ * Description:
+ *   Open and connect the socket with wrong endpoint
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void WrongEndpoint(void)
+{
+  int ret;
+  struct sockaddr_in addr;
+
+  /* Try connect socket to unreachable endpoint */
+
+  inet_pton(AF_INET, "1.1.1.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(1);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(ENETUNREACH, errno);
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Connect */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+TEST_SETUP(BasicConnect)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Setup(&usrsocktest_daemon_config);
+}
+
+TEST_TEAR_DOWN(BasicConnect)
+{
+  Teardown();
+}
+
+TEST(BasicConnect, NotConnected)
+{
+  NotConnected();
+}
+
+TEST(BasicConnect, Connect)
+{
+  Connect();
+}
+
+TEST(BasicConnect, WrongAF)
+{
+  WrongAF();
+}
+
+TEST(BasicConnect, WrongPort)
+{
+  WrongPort();
+}
+
+TEST(BasicConnect, WrongEndpoint)
+{
+  WrongEndpoint();
+}
+
+TEST_SETUP(BasicConnectDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Setup(&usrsocktest_daemon_config);
+}
+
+TEST_TEAR_DOWN(BasicConnectDelay)
+{
+  Teardown();
+}
+
+TEST(BasicConnectDelay, NotConnected)
+{
+  NotConnected();
+}
+
+TEST(BasicConnectDelay, Connect)
+{
+  Connect();
+}
+
+TEST(BasicConnectDelay, WrongAF)
+{
+  WrongAF();
+}
+
+TEST(BasicConnectDelay, WrongPort)
+{
+  WrongPort();
+}
+
+TEST(BasicConnectDelay, WrongEndpoint)
+{
+  WrongEndpoint();
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BasicConnect)
+{
+  RUN_TEST_CASE(BasicConnect, NotConnected);
+  RUN_TEST_CASE(BasicConnect, Connect);
+  RUN_TEST_CASE(BasicConnect, WrongAF);
+  RUN_TEST_CASE(BasicConnect, WrongPort);
+  RUN_TEST_CASE(BasicConnect, WrongEndpoint);
+}
+
+TEST_GROUP(BasicConnectDelay)
+{
+  RUN_TEST_CASE(BasicConnectDelay, NotConnected);
+  RUN_TEST_CASE(BasicConnectDelay, Connect);
+  RUN_TEST_CASE(BasicConnectDelay, WrongAF);
+  RUN_TEST_CASE(BasicConnectDelay, WrongPort);
+  RUN_TEST_CASE(BasicConnectDelay, WrongEndpoint);
+}
+

examples/usrsocktest/usrsocktest_basic_daemon.c

@@ -0,0 +1,686 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_basic_daemon.c
+ * Basic tests with socket daemon
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd, sd2, sd3;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: NoActiveSockets
+ *
+ * Description:
+ *   Checks there is no active sockets on daemon startup
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void NoActiveSockets(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+}
+
+/****************************************************************************
+ * Name: OpenClose
+ *
+ * Description:
+ *   Open and close AF_INET socket, check active socket counter updates
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void OpenClose(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: UnsupportedType
+ *
+ * Description:
+ *   Try open socket for unsupported type
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void UnsupportedType(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_RDM, 0);
+  TEST_ASSERT_TRUE(sd < 0);
+  TEST_ASSERT_EQUAL(EPROTONOSUPPORT, errno);
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: UnsupportedProto
+ *
+ * Description:
+ *   Try open socket for unsupported protocol
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void UnsupportedProto(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 1);
+  TEST_ASSERT_TRUE(sd < 0);
+  TEST_ASSERT_EQUAL(EPROTONOSUPPORT, errno);
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: OpenThree
+ *
+ * Description:
+ *   Open multiple sockets
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void OpenThree(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+
+  dconf->max_sockets = 3;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  sd3 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd3 >= 0);
+  TEST_ASSERT_EQUAL(3, usrsocktest_daemon_get_num_active_sockets());
+  ret = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_FALSE(ret >= 0);
+  TEST_ASSERT_EQUAL(3, usrsocktest_daemon_get_num_active_sockets());
+
+  ret = close(sd2);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  ret = close(sd);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  ret = close(sd3);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd3 = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: Dup
+ *
+ * Description:
+ *   Dup opened socket
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Dup(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  sd2 = dup(sd);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  sd3 = dup(sd);
+  TEST_ASSERT_TRUE(sd3 >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  ret = close(sd2);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  ret = close(sd);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  ret = close(sd3);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd3 = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: Dup2
+ *
+ * Description:
+ *   Clone opened socket with dup2
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Dup2(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+
+  ret = dup2(sd2, sd);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  ret = close(sd2);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  ret = close(sd);
+  TEST_ASSERT_EQUAL(0, ret);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: Stops
+ *
+ * Description:
+ *   Daemon stops unexpectedly
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Stops(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+
+  ret = usrsocktest_daemon_stop();
+  TEST_ASSERT_EQUAL(OK, ret);
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+
+
+  TEST_ASSERT_EQUAL(0, close(sd));
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, close(sd2));
+  sd2 = -1;
+}
+
+/****************************************************************************
+ * Name: StopsStarts
+ *
+ * Description:
+ *   Daemon stops and restarts unexpectedly
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void StopsStarts(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+  struct sockaddr_in addr;
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = 255;
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EPIPE, errno);
+
+  ret = connect(sd2, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EPIPE, errno);
+
+  TEST_ASSERT_EQUAL(0, close(sd));
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, close(sd2));
+  sd2 = -1;
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BasicDaemon test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BasicDaemon)
+{
+  sd = -1;
+  sd2 = -1;
+  sd3 = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BasicDaemon test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BasicDaemon)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (sd2 >= 0)
+    {
+      ret = close(sd2);
+      assert(ret >= 0);
+    }
+  if (sd3 >= 0)
+    {
+      ret = close(sd3);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BasicDaemon, NoActiveSockets)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  NoActiveSockets(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, NoActiveSocketsDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  NoActiveSockets(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, OpenClose)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  OpenClose(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, OpenCloseDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  OpenClose(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, UnsupportedType)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  UnsupportedType(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, UnsupportedTypeDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  UnsupportedType(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, UnsupportedProto)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  UnsupportedProto(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, UnsupportedProtoDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  UnsupportedProto(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, OpenThree)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  OpenThree(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, OpenThreeDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  OpenThree(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, Dup)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Dup(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, DupDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Dup(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, Dup2)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Dup2(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, Dup2Delay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Dup2(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, Stops)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Stops(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, StopsDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Stops(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, StopsStarts)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  StopsStarts(&usrsocktest_daemon_config);
+}
+
+TEST(BasicDaemon, StopsStartsDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  StopsStarts(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BasicDaemon)
+{
+  RUN_TEST_CASE(BasicDaemon, NoActiveSockets);
+  RUN_TEST_CASE(BasicDaemon, NoActiveSocketsDelay);
+  RUN_TEST_CASE(BasicDaemon, OpenClose);
+  RUN_TEST_CASE(BasicDaemon, OpenCloseDelay);
+  RUN_TEST_CASE(BasicDaemon, UnsupportedType);
+  RUN_TEST_CASE(BasicDaemon, UnsupportedTypeDelay);
+  RUN_TEST_CASE(BasicDaemon, UnsupportedProto);
+  RUN_TEST_CASE(BasicDaemon, UnsupportedProtoDelay);
+  RUN_TEST_CASE(BasicDaemon, OpenThree);
+  RUN_TEST_CASE(BasicDaemon, OpenThreeDelay);
+  RUN_TEST_CASE(BasicDaemon, Dup);
+  RUN_TEST_CASE(BasicDaemon, DupDelay);
+  RUN_TEST_CASE(BasicDaemon, Dup2);
+  RUN_TEST_CASE(BasicDaemon, Dup2Delay);
+  RUN_TEST_CASE(BasicDaemon, Stops);
+  RUN_TEST_CASE(BasicDaemon, StopsDelay);
+  RUN_TEST_CASE(BasicDaemon, StopsStarts);
+  RUN_TEST_CASE(BasicDaemon, StopsStartsDelay);
+}
+

examples/usrsocktest/usrsocktest_basic_getsockname.c

@@ -0,0 +1,287 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_basic_getsockname.c
+ * Basic getsockname tests
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Open
+ *
+ * Description:
+ *   Open and get socket options
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Open(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+  socklen_t addrlen;
+  union {
+    struct sockaddr_storage storage;
+    struct sockaddr_in in;
+  } addr;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get socket name */
+
+  memset(&addr, 0xff, sizeof(addr));
+  addrlen = sizeof(addr.in);
+  ret = getsockname(sd, (FAR void *)&addr.in, &addrlen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(addr.in), addrlen);
+  TEST_ASSERT_EQUAL(AF_INET, addr.in.sin_family);
+  TEST_ASSERT_EQUAL(htons(12345), addr.in.sin_port);
+  TEST_ASSERT_EQUAL(htonl(0x7f000001), addr.in.sin_addr.s_addr);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get socket name, short buffer */
+
+  memset(&addr, 0xff, sizeof(addr));
+  addrlen = 1;
+  ret = getsockname(sd, (FAR void *)&addr.in, &addrlen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(addr.in), addrlen);
+  TEST_ASSERT_EQUAL(AF_INET, ((FAR uint8_t *)&addr.in.sin_family)[0]);
+  TEST_ASSERT_EQUAL(0xff,    ((FAR uint8_t *)&addr.in.sin_family)[1]);
+  TEST_ASSERT_EQUAL(htons(0xffff), addr.in.sin_port);
+  TEST_ASSERT_EQUAL(htonl(0xffffffff), addr.in.sin_addr.s_addr);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get socket name, larger buffer */
+
+  memset(&addr, 0xff, sizeof(addr));
+  addrlen = sizeof(addr.storage);
+  ret = getsockname(sd, (FAR void *)&addr.in, &addrlen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(addr.in), addrlen);
+  TEST_ASSERT_EQUAL(AF_INET, addr.in.sin_family);
+  TEST_ASSERT_EQUAL(htons(12345), addr.in.sin_port);
+  TEST_ASSERT_EQUAL(htonl(0x7f000001), addr.in.sin_addr.s_addr);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get socket name, NULL addr */
+
+  memset(&addr, 0xff, sizeof(addr));
+  addrlen = sizeof(addr.in);
+  ret = getsockname(sd, NULL, &addrlen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINVAL, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get socket name, NULL addrlen */
+
+  memset(&addr, 0xff, sizeof(addr));
+  addrlen = sizeof(addr.in);
+  ret = getsockname(sd, (FAR void *)&addr.in, NULL);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINVAL, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get socket name, zero length buffer */
+
+  memset(&addr, 0xff, sizeof(addr));
+  addrlen = 0;
+  ret = getsockname(sd, (FAR void *)&addr.in, &addrlen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(addr.in), addrlen);
+  TEST_ASSERT_EQUAL(0xffff, addr.in.sin_family);
+  TEST_ASSERT_EQUAL(htons(0xffff), addr.in.sin_port);
+  TEST_ASSERT_EQUAL(htonl(0xffffffff), addr.in.sin_addr.s_addr);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BasicGetSockName test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BasicGetSockName)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BasicGetSockName test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BasicGetSockName)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BasicGetSockName, Open)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Open(&usrsocktest_daemon_config);
+}
+
+TEST(BasicGetSockName, OpenDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Open(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BasicGetSockName)
+{
+  RUN_TEST_CASE(BasicGetSockName, Open);
+  RUN_TEST_CASE(BasicGetSockName, OpenDelay);
+}

examples/usrsocktest/usrsocktest_basic_getsockopt.c

@@ -0,0 +1,266 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_basic_getsockopt.c
+ * Basic getsockopt tests
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Open
+ *
+ * Description:
+ *   Open and get socket options
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Open(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+  int value;
+  int valuelarge[2];
+  socklen_t valuelen;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get supported option (SO_TYPE handled by nuttx) */
+
+  value = -2;
+  valuelen = sizeof(value);
+  ret = getsockopt(sd, SOL_SOCKET, SO_TYPE, &value, &valuelen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(value), valuelen);
+  TEST_ASSERT_EQUAL(SOCK_STREAM, value);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get supported option */
+
+  value = -1;
+  valuelen = sizeof(value);
+  ret = getsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &value, &valuelen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(value), valuelen);
+  TEST_ASSERT_EQUAL(0, value);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get supported option, too short buffer */
+
+  value = -1;
+  valuelen = 1;
+  ret = getsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &value, &valuelen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINVAL, errno);
+  TEST_ASSERT_EQUAL(-1, value);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get supported option, larger buffer */
+
+  valuelarge[0] = -1;
+  valuelarge[1] = -1;
+  valuelen = sizeof(valuelarge);
+  ret = getsockopt(sd, SOL_SOCKET, SO_REUSEADDR, valuelarge, &valuelen);
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(sizeof(value), valuelen);
+  TEST_ASSERT_EQUAL(0, valuelarge[0]);
+  TEST_ASSERT_EQUAL(-1, valuelarge[1]);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Get unsupported option */
+
+  value = -1;
+  valuelen = sizeof(value);
+  ret = getsockopt(sd, SOL_SOCKET, SO_BROADCAST, &value, &valuelen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(ENOPROTOOPT, errno);
+  TEST_ASSERT_EQUAL(-1, value);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BasicGetSockOpt test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BasicGetSockOpt)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BasicGetSockOpt test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BasicGetSockOpt)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BasicGetSockOpt, Open)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Open(&usrsocktest_daemon_config);
+}
+
+TEST(BasicGetSockOpt, OpenDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Open(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BasicGetSockOpt)
+{
+  RUN_TEST_CASE(BasicGetSockOpt, Open);
+  RUN_TEST_CASE(BasicGetSockOpt, OpenDelay);
+}

examples/usrsocktest/usrsocktest_basic_send.c

@@ -0,0 +1,359 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_basic_send.c
+ * Basic sending tests
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Send
+ *
+ * Description:
+ *   Open socket and send
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Send(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  struct sockaddr_in addr;
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Send on non-connected socket */
+
+  data = "data";
+  datalen = strlen("data");
+  ret = send(sd, data, datalen, 0);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(ENOTCONN, errno);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Sendto with address */
+
+  data = "data";
+  datalen = strlen("data");
+  ret = sendto(sd, data, datalen, 0, (FAR const struct sockaddr *)&addr,
+               sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(ENOTCONN, errno);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Connect socket to available endpoint */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Sendto with address */
+
+  data = "data";
+  datalen = strlen("data");
+  ret = sendto(sd, data, datalen, 0, (FAR const struct sockaddr *)&addr,
+               sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV,
+                    usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_send_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+
+}
+
+/****************************************************************************
+ * Name: ConnectSend
+ *
+ * Description:
+ *   Send over connected socket
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+static void ConnectSend(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  struct sockaddr_in addr;
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Connect socket to available endpoint */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Send data to remote */
+
+  data = "data";
+  datalen = strlen("data");
+  ret = send(sd, data, datalen, 0);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV,
+                    usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BasicSend test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BasicSend)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BasicSend test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BasicSend)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BasicSend, Send)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Send(&usrsocktest_daemon_config);
+}
+
+TEST(BasicSend, SendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Send(&usrsocktest_daemon_config);
+}
+
+TEST(BasicSend, ConnectSend)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(BasicSend, ConnectSendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BasicSend)
+{
+  RUN_TEST_CASE(BasicSend, Send);
+  RUN_TEST_CASE(BasicSend, SendDelay);
+  RUN_TEST_CASE(BasicSend, ConnectSend);
+  RUN_TEST_CASE(BasicSend, ConnectSendDelay);
+}

examples/usrsocktest/usrsocktest_basic_setsockopt.c

@@ -0,0 +1,235 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_basic_setsockopt.c
+ * Basic setsockopt tests
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Open
+ *
+ * Description:
+ *   Open and set socket options
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Open(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  int ret;
+  int value;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Set supported option */
+
+  value = 1;
+  ret = setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &value, sizeof(value));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Set supported option, too small buffer */
+
+  value = 1;
+  ret = setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &value, 1);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINVAL, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Set unsupported option */
+
+  value = 1;
+  ret = setsockopt(sd, SOL_SOCKET, SO_BROADCAST, &value, sizeof(value));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(ENOPROTOOPT, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BasicSetSockOpt test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BasicSetSockOpt)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BasicSetSockOpt test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BasicSetSockOpt)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BasicSetSockOpt, Open)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Open(&usrsocktest_daemon_config);
+}
+
+TEST(BasicSetSockOpt, OpenDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Open(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BasicSetSockOpt)
+{
+  RUN_TEST_CASE(BasicSetSockOpt, Open);
+  RUN_TEST_CASE(BasicSetSockOpt, OpenDelay);
+}
+

examples/usrsocktest/usrsocktest_block_recv.c

@@ -0,0 +1,514 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_block_recv.c
+ * Receive from the socket in blocking mode
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/time.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: ConnectReceive
+ *
+ * Description:
+ *   Blocking connect and receive
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void ConnectReceive(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  char databuf[5];
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = true;
+  dconf->endpoint_recv_avail_from_start = false;
+  dconf->endpoint_recv_avail = 7;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Do connect, should succeed (after connect block released). */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 100));
+  ret = recvfrom(sd, data, datalen, 0, NULL, 0);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(5, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abcde", data, 5);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(5, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, 0);
+  TEST_ASSERT_EQUAL(2, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("ab", data, 2);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(7, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: NoBlockConnect
+ *
+ * Description:
+ *   Non-blocking connect and blocking receive
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void NoBlockConnect(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  char databuf[5];
+  struct sockaddr_in remoteaddr;
+  socklen_t addrlen;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = true;
+  dconf->endpoint_recv_avail_from_start = true;
+  dconf->endpoint_recv_avail = 6;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Do connect, should succeed (after connect block released). */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('W', 100));
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = read(sd, data, datalen);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(5, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abcde", data, 5);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(5, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  addrlen = sizeof(remoteaddr);
+  ret = recvfrom(sd, data, datalen, 0, (FAR struct sockaddr *)&remoteaddr,
+                 &addrlen);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("a", data, 1);
+  TEST_ASSERT_EQUAL(sizeof(remoteaddr), addrlen);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY(&remoteaddr, &addr, addrlen);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(6, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  addrlen = sizeof(remoteaddr);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 100));
+  ret = recvfrom(sd, data, datalen, 0, (FAR struct sockaddr *)&remoteaddr,
+                 &addrlen);
+  TEST_ASSERT_EQUAL(5, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abcde", data, 5);
+  TEST_ASSERT_EQUAL(sizeof(remoteaddr), addrlen);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY(&remoteaddr, &addr, addrlen);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(11, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(11, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: ReceiveTimeout
+ *
+ * Description:
+ *   Blocking connect and receive with SO_RCVTIMEO
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void ReceiveTimeout(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  char databuf[5];
+  struct timeval tv;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = true;
+  dconf->endpoint_recv_avail_from_start = false;
+  dconf->endpoint_recv_avail = 7;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Do connect, should succeed (after connect block released). */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Setup recv timeout. */
+
+  tv.tv_sec = 0;
+  tv.tv_usec = 100 * 1000;
+  ret = setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, (FAR const void *)&tv,
+                   sizeof(tv));
+  TEST_ASSERT_EQUAL(0, ret);
+
+  /* Receive data from remote */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, 0);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BlockRecv test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BlockRecv)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BlockRecv test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BlockRecv)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BlockRecv, ConnectReceive)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ConnectReceive(&usrsocktest_daemon_config);
+}
+
+TEST(BlockRecv, ConnectReceiveDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ConnectReceive(&usrsocktest_daemon_config);
+}
+
+TEST(BlockRecv, NoBlockConnect)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  NoBlockConnect(&usrsocktest_daemon_config);
+}
+
+TEST(BlockRecv, NoBlockConnectDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  NoBlockConnect(&usrsocktest_daemon_config);
+}
+
+TEST(BlockRecv, ReceiveTimeout)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ReceiveTimeout(&usrsocktest_daemon_config);
+}
+
+TEST(BlockRecv, ReceiveTimeoutDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ReceiveTimeout(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BlockRecv)
+{
+  RUN_TEST_CASE(BlockRecv, ConnectReceive);
+  RUN_TEST_CASE(BlockRecv, ConnectReceiveDelay);
+  RUN_TEST_CASE(BlockRecv, NoBlockConnect);
+  RUN_TEST_CASE(BlockRecv, NoBlockConnectDelay);
+  RUN_TEST_CASE(BlockRecv, ReceiveTimeout);
+  RUN_TEST_CASE(BlockRecv, ReceiveTimeoutDelay);
+}
+

examples/usrsocktest/usrsocktest_block_send.c

@@ -0,0 +1,442 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_block_send.c
+ * Send through the socket in blocking mode
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <sys/time.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: ConnectSend
+ *
+ * Description:
+ *   Open socket, connect in blocking mode and send
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void ConnectSend(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Do connect, should succeed (after connect block released). */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Send data to remote,  */
+
+  data = "abcde";
+  datalen = strlen("abcde");
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('W', 100));
+  ret = sendto(sd, data, datalen, 0, NULL, 0);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: NonBlockConnectSend
+ *
+ * Description:
+ *   Open socket, connect in non-blocking mode and send
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void NonBlockConnectSend(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = false;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Do connect, should succeed (after connect block released). */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('W', 100));
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Send data to remote. */
+
+  data = "abcde";
+  datalen = strlen("abcde");
+  ret = write(sd, data, datalen);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: SendTimeout
+ *
+ * Description:
+ *   Open socket, connect in blocking mode and send with SO_SNDTIMEO
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void SendTimeout(FAR struct usrsocktest_daemon_conf_s *dconf)
+{
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+  struct sockaddr_in addr;
+  struct timeval tv;
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Do connect, should succeed (after connect block released). */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Setup send timeout. */
+
+  tv.tv_sec = 0;
+  tv.tv_usec = 100 * 1000;
+  ret = setsockopt(sd, SOL_SOCKET, SO_SNDTIMEO, (FAR const void *)&tv,
+                   sizeof(tv));
+  TEST_ASSERT_EQUAL(0, ret);
+
+  /* Try send data to remote. */
+
+  data = "abcde";
+  datalen = strlen("abcde");
+  ret = sendto(sd, data, datalen, 0, NULL, 0);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: BlockSend test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(BlockSend)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: BlockSend test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(BlockSend)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(BlockSend, ConnectSend)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(BlockSend, ConnectSendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(BlockSend, NonBlockConnectSend)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  NonBlockConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(BlockSend, NonBlockConnectSendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  NonBlockConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(BlockSend, SendTimeout)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  SendTimeout(&usrsocktest_daemon_config);
+}
+
+TEST(BlockSend, SendTimeoutDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  SendTimeout(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(BlockSend)
+{
+  RUN_TEST_CASE(BlockSend, ConnectSend);
+  RUN_TEST_CASE(BlockSend, ConnectSendDelay);
+  RUN_TEST_CASE(BlockSend, NonBlockConnectSend);
+  RUN_TEST_CASE(BlockSend, NonBlockConnectSendDelay);
+  RUN_TEST_CASE(BlockSend, SendTimeout);
+  RUN_TEST_CASE(BlockSend, SendTimeoutDelay);
+}
+

examples/usrsocktest/usrsocktest_chardev.c

@@ -0,0 +1,234 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_chardev.c
+ * Character device node tests
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <fcntl.h>
+#include <errno.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static int us_fd;
+static int us_fd_two;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: CharDev test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(CharDev)
+{
+  us_fd = -1;
+  us_fd_two = -1;
+}
+
+/****************************************************************************
+ * Name: CharDev test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(CharDev)
+{
+  int ret;
+
+  if (us_fd >= 0)
+    {
+      ret = close(us_fd);
+      assert(ret >= 0);
+    }
+  if (us_fd_two >= 0)
+    {
+      ret = close(us_fd_two);
+      assert(ret >= 0);
+    }
+}
+
+/****************************************************************************
+ * Name: OpenRw
+ *
+ * Description:
+ *   Simple test for opening and closing usrsock node
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST(CharDev, OpenRw)
+{
+  int ret;
+
+  us_fd = open(USRSOCK_NODE, O_RDWR);
+  TEST_ASSERT_TRUE(us_fd >= 0);
+
+  ret = close(us_fd);
+  TEST_ASSERT_TRUE(ret >= 0);
+  us_fd = -1;
+}
+
+/****************************************************************************
+ * Name: ReopenRw
+ *
+ * Description:
+ *   Repeated simple test for opening and closing usrsock node, reopen should
+ *   work
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST(CharDev, ReopenRw)
+{
+  int ret;
+
+  us_fd = open(USRSOCK_NODE, O_RDWR);
+  TEST_ASSERT_TRUE(us_fd >= 0);
+
+  ret = close(us_fd);
+  TEST_ASSERT_TRUE(ret >= 0);
+  us_fd = -1;
+
+  us_fd = open(USRSOCK_NODE, O_RDWR);
+  TEST_ASSERT_TRUE(us_fd >= 0);
+
+  ret = close(us_fd);
+  TEST_ASSERT_TRUE(ret >= 0);
+  us_fd = -1;
+}
+
+/****************************************************************************
+ * Name: NoMultipleOpen
+ *
+ * Description:
+ *   No permission for multiple access,
+ *   first user should be only user.
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST(CharDev, NoMultipleOpen)
+{
+  us_fd = open(USRSOCK_NODE, O_RDWR);
+  TEST_ASSERT_TRUE(us_fd >= 0);
+
+  us_fd_two = open(USRSOCK_NODE, O_RDWR);
+  TEST_ASSERT_FALSE(us_fd_two >= 0);
+  TEST_ASSERT_EQUAL(EPERM, errno);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(CharDev)
+{
+  RUN_TEST_CASE(CharDev, OpenRw);
+  RUN_TEST_CASE(CharDev, ReopenRw);
+  RUN_TEST_CASE(CharDev, NoMultipleOpen);
+}
+

examples/usrsocktest/usrsocktest_main.c

@@ -0,0 +1,284 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_main.c
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *    Author: Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <debug.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <poll.h>
+
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#ifndef dbg
+  #define dbg _warn
+#endif
+
+#define usrsocktest_dbg(...) ((void)0)
+
+#ifndef ARRAY_SIZE
+#  define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static struct
+{
+  unsigned int ok;
+  unsigned int failed;
+
+  unsigned int nchecks;
+} overall;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+int usrsocktest_endp_malloc_cnt = 0;
+int usrsocktest_dcmd_malloc_cnt = 0;
+bool usrsocktest_test_failed = false;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void get_mallinfo(struct mallinfo *mem)
+{
+#ifdef CONFIG_CAN_PASS_STRUCTS
+  *mem = mallinfo();
+#else
+  (void)mallinfo(mem);
+#endif
+}
+
+static void print_mallinfo(const struct mallinfo *mem, const char *title)
+{
+  if (title)
+    printf("%s:\n", title);
+  printf("       %11s%11s%11s%11s\n", "total", "used", "free", "largest");
+  printf("Mem:   %11d%11d%11d%11d\n",
+         mem->arena, mem->uordblks, mem->fordblks, mem->mxordblk);
+}
+
+static void utest_assert_print_head(FAR const char *func, const int line,
+                                    FAR const char *check_str)
+{
+  printf("\t[TEST ASSERT FAILED!]\n"
+         "\t\tIn function \"%s\":\n"
+         "\t\tline %d: Assertion `%s' failed.\n", func, line, check_str);
+}
+
+static void run_tests(FAR const char *name, void (CODE *test_fn)(void))
+{
+  printf("Testing group \"%s\" =>\n", name);
+  fflush(stdout);
+  fflush(stderr);
+
+  usrsocktest_test_failed = false;
+  test_fn();
+  if (!usrsocktest_test_failed)
+    {
+      printf("\tGroup \"%s\": [OK]\n", name);
+      overall.ok++;
+    }
+  else
+    {
+      printf("\tGroup \"%s\": [FAILED]\n", name);
+      overall.failed++;
+    }
+
+  fflush(stdout);
+  fflush(stderr);
+}
+
+/****************************************************************************
+ * Name: runAllTests
+ *
+ * Description:
+ *   Sequentially runs all included test groups
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void runAllTests(void)
+{
+  RUN_TEST_GROUP(CharDev);
+  RUN_TEST_GROUP(NoDaemon);
+  RUN_TEST_GROUP(BasicDaemon);
+  RUN_TEST_GROUP(BasicConnect);
+  RUN_TEST_GROUP(BasicConnectDelay);
+  RUN_TEST_GROUP(NoBlockConnect);
+  RUN_TEST_GROUP(BasicSend);
+  RUN_TEST_GROUP(NoBlockSend);
+  RUN_TEST_GROUP(BlockSend);
+  RUN_TEST_GROUP(NoBlockRecv);
+  RUN_TEST_GROUP(BlockRecv);
+  RUN_TEST_GROUP(RemoteDisconnect);
+  RUN_TEST_GROUP(BasicSetSockOpt);
+  RUN_TEST_GROUP(BasicGetSockOpt);
+  RUN_TEST_GROUP(BasicGetSockName);
+  RUN_TEST_GROUP(WakeWithSignal);
+  RUN_TEST_GROUP(MultiThread);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+bool usrsocktest_assert_print_value(FAR const char *func,
+                                    const int line,
+                                    FAR const char *check_str,
+                                    long int test_value,
+                                    long int should_be)
+{
+  ++overall.nchecks;
+
+  if (test_value == should_be)
+    {
+      int keep_errno = errno;
+
+      usrsocktest_dbg("%d => OK.\n", line);
+
+      errno = keep_errno;
+      return true;
+    }
+
+  utest_assert_print_head(func, line, check_str);
+
+  printf("\t\t\tgot value: %ld\n", test_value);
+  printf("\t\t\tshould be: %ld\n", should_be);
+
+  fflush(stdout);
+  fflush(stderr);
+
+  return false;
+}
+
+bool usrsocktest_assert_print_buf(FAR const char *func,
+                                  const int line,
+                                  FAR const char *check_str,
+                                  FAR const void *test_buf,
+                                  FAR const void *expect_buf,
+                                  size_t buflen)
+{
+  ++overall.nchecks;
+
+  if (memcmp(test_buf, expect_buf, buflen) == 0)
+    {
+      int keep_errno = errno;
+
+      usrsocktest_dbg("%d => OK.\n", line);
+
+      errno = keep_errno;
+      return true;
+    }
+
+  utest_assert_print_head(func, line, check_str);
+
+  fflush(stdout);
+  fflush(stderr);
+
+  return false;
+}
+
+/****************************************************************************
+ * usrsocktest_main
+ ****************************************************************************/
+
+#ifdef CONFIG_BUILD_KERNEL
+int main(int argc, FAR char *argv[])
+#else
+int usrsocktest_main(int argc, char *argv[])
+#endif
+{
+  struct mallinfo mem_before, mem_after;
+
+  memset(&overall, 0, sizeof(overall));
+
+  printf("Starting unit-tests...\n");
+  fflush(stdout);
+  fflush(stderr);
+
+  get_mallinfo(&mem_before);
+
+  runAllTests();
+
+  printf("Unit-test groups done... OK:%d, FAILED:%d, TOTAL:%d\n",
+         overall.ok, overall.failed, overall.ok + overall.failed);
+  printf(" -- number of checks made: %d\n", overall.nchecks);
+  fflush(stdout);
+  fflush(stderr);
+
+  get_mallinfo(&mem_after);
+
+  print_mallinfo(&mem_before, "HEAP BEFORE TESTS");
+  print_mallinfo(&mem_after, "HEAP AFTER TESTS");
+
+  fflush(stdout);
+  fflush(stderr);
+  exit(0);
+
+  return 0;
+}
+

examples/usrsocktest/usrsocktest_multi_thread.c

@@ -0,0 +1,267 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_multi_thread.c
+ * Multi-threaded access to sockets
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifndef ARRAY_SIZE
+#  define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static pthread_t tids[4];
+static int sds[4];
+static bool started;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void usrsock_socket_multitask_do_work(int *sd)
+{
+  struct sockaddr_in addr;
+  int ret;
+  int i;
+
+  for (i = 0; i < 10; i++)
+    {
+      /* Simple test for opening socket with usrsock daemon running. */
+
+      *sd = socket(AF_INET, SOCK_STREAM, 0);
+      TEST_ASSERT_TRUE(*sd >= 0);
+
+      inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+      addr.sin_family = AF_INET;
+      addr.sin_port = htons(255);
+      ret = connect(*sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+      TEST_ASSERT_EQUAL(0, ret);
+
+      /* Close socket */
+
+      TEST_ASSERT_TRUE(close(*sd) >= 0);
+      *sd = -1;
+    }
+}
+
+static FAR void *usrsock_socket_multitask_thread(FAR void *param)
+{
+  usrsock_socket_multitask_do_work((int*)param);
+  return NULL;
+}
+
+/****************************************************************************
+ * Name: MultiThread test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(MultiThread)
+{
+  int i;
+  for (i = 0; i < ARRAY_SIZE(sds); i++)
+    {
+      sds[i] = -1;
+    }
+  for (i = 0; i < ARRAY_SIZE(tids); i++)
+    {
+      tids[i] = -1;
+    }
+  started = false;
+}
+
+/****************************************************************************
+ * Name: MultiThread test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(MultiThread)
+{
+  int ret;
+  int i;
+
+  for (i = 0; i < ARRAY_SIZE(tids); i++)
+    {
+      if (tids[i] != -1)
+        {
+          ret = pthread_cancel(tids[i]);
+          assert(ret == OK);
+          ret = pthread_join(tids[i], NULL);
+          assert(ret == OK);
+        }
+    }
+  for (i = 0; i < ARRAY_SIZE(sds); i++)
+    {
+      if (sds[i] != -1)
+        {
+          ret = close(sds[i]);
+          assert(ret >= 0);
+        }
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+/****************************************************************************
+ * Name: OpenClose
+ *
+ * Description:
+ *   Open and close socket with multiple threads
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST(MultiThread, OpenClose)
+{
+  int ret;
+  int i;
+
+  /* Start test daemon. */
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  usrsocktest_daemon_config.endpoint_block_send = false;
+  usrsocktest_daemon_config.endpoint_block_connect = false;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Launch worker threads. */
+
+  for (i = 0; i < ARRAY_SIZE(tids); i++)
+    {
+      ret = pthread_create(&tids[i], NULL, usrsock_socket_multitask_thread,
+                           sds + i);
+      TEST_ASSERT_EQUAL(OK, ret);
+    }
+
+  /* Wait threads to complete work. */
+
+  while (--i > -1)
+    {
+      pthread_addr_t tparam;
+
+      ret = pthread_join(tids[i], &tparam);
+      TEST_ASSERT_EQUAL(OK, ret);
+      tids[i] = -1;
+
+      /* This flag is set whenever a test fails, otherwise it is not touched
+       * No need for synchronization. Here we bail from main test thread on
+       * first failure in any thread.
+       */
+
+      TEST_ASSERT_FALSE(usrsocktest_test_failed);
+    }
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(MultiThread)
+{
+  RUN_TEST_CASE(MultiThread, OpenClose);
+}
+

examples/usrsocktest/usrsocktest_noblock_connect.c

@@ -0,0 +1,816 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_noblock_connect.c
+ * Socket connect tests in non-blocking mode
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd, sd2;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+TEST_SETUP(NoBlockConnect)
+{
+  sd = -1;
+  sd2 = -1;
+  started = false;
+}
+
+TEST_TEAR_DOWN(NoBlockConnect)
+{
+  int ret;
+
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret == 0);
+    }
+  if (sd2 >= 0)
+    {
+      ret = close(sd2);
+      assert(ret == 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(NoBlockConnect, InstantConnect)
+{
+  int flags;
+  int ret;
+  struct sockaddr_in addr;
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Do connect, should succeed instantly. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(0, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+TEST(NoBlockConnect, DelayedConnect)
+{
+  int flags, ret, count;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.endpoint_block_connect = true;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Another connect attempt results EALREADY. */
+
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EALREADY, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Release delayed connect. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Another connect attempt results EISCONN. */
+
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+
+  /* Close socket. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+TEST(NoBlockConnect, CloseNotConnected)
+{
+  int flags, ret;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.endpoint_block_connect = true;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Close socket. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+TEST(NoBlockConnect, EarlyDrop)
+{
+  int flags, ret;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.endpoint_block_connect = true;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  usrsocktest_daemon_config.delay_all_responses = false;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+
+  /* Close socket. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_waiting_connect_sockets());
+}
+
+TEST(NoBlockConnect, Multiple)
+{
+  int flags, ret, count;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.endpoint_block_connect = true;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  usrsocktest_daemon_config.delay_all_responses = false;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open sockets */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  flags = fcntl(sd2, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd2, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd2, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempts, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd2, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Release delayed connections. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd2, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Release delayed connections. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0;
+       count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Close sockets. */
+
+  TEST_ASSERT_TRUE(close(sd2) >= 0);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Open sockets */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  flags = fcntl(sd2, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd2, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd2, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempts, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  ret = connect(sd2, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Release delayed connections. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Close sockets. */
+
+  TEST_ASSERT_TRUE(close(sd2) >= 0);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Open sockets */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  sd2 = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  flags = fcntl(sd2, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd2, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd2, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Release delayed connections. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Launch another connect attempt, daemon delays actual connection until triggered. */
+
+  ret = connect(sd2, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(2, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Close sockets. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_TRUE(close(sd2) >= 0);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+TEST(NoBlockConnect, Dup2)
+{
+  int flags, ret, count;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.endpoint_block_connect = true;
+  usrsocktest_daemon_config.endpoint_addr = "127.0.0.1";
+  usrsocktest_daemon_config.endpoint_port = 255;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(&usrsocktest_daemon_config));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Duplicate socket */
+
+  sd2 = dup(sd);
+  TEST_ASSERT_TRUE(sd2 >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Another connect attempt results EALREADY. */
+
+  ret = connect(sd2, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EALREADY, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Release delayed connect. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Another connect attempt results EISCONN. */
+
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+
+  /* Close sockets. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  TEST_ASSERT_TRUE(close(sd2) >= 0);
+  sd2 = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(NoBlockConnect)
+{
+  RUN_TEST_CASE(NoBlockConnect, InstantConnect);
+  RUN_TEST_CASE(NoBlockConnect, DelayedConnect);
+  RUN_TEST_CASE(NoBlockConnect, CloseNotConnected);
+  RUN_TEST_CASE(NoBlockConnect, EarlyDrop);
+  RUN_TEST_CASE(NoBlockConnect, Multiple);
+  RUN_TEST_CASE(NoBlockConnect, Dup2);
+}

examples/usrsocktest/usrsocktest_noblock_recv.c

@@ -0,0 +1,521 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_noblock_recv.c
+ * Receive from the socket in non-blocking mode
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Receive
+ *
+ * Description:
+ *   Non-blocking & instant connect+recv
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Receive(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  int count;
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  char databuf[4];
+  struct sockaddr_in remoteaddr;
+  socklen_t addrlen;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_recv_avail_from_start = true;
+  dconf->endpoint_recv_avail = 7;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Do connect, should succeed instantly. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  if (!dconf->delay_all_responses)
+    {
+      TEST_ASSERT_EQUAL(0, ret);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(0,
+                        usrsocktest_daemon_get_num_waiting_connect_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+    }
+  else
+    {
+      TEST_ASSERT_EQUAL(-1, ret);
+      TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(0,
+                        usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+      for (count = 0; usrsocktest_daemon_get_num_connected_sockets() != 1;
+           count++)
+        {
+          TEST_ASSERT_TRUE(count <= 3);
+          usleep(25 * 1000);
+        }
+
+      ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+      TEST_ASSERT_EQUAL(-1, ret);
+      TEST_ASSERT_EQUAL(EISCONN, errno);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+    }
+
+  /* Receive data from remote, daemon returns 4 bytes. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(4, datalen);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abcd", data, 4);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(4, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote with address, daemon returns 3 bytes. */
+
+  addrlen = sizeof(remoteaddr);
+  ret = recvfrom(sd, data, datalen, 0, (FAR struct sockaddr *)&remoteaddr,
+                 &addrlen);
+  TEST_ASSERT_EQUAL(3, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abc", data, 3);
+  TEST_ASSERT_EQUAL(addrlen, sizeof(remoteaddr));
+  TEST_ASSERT_EQUAL_UINT8_ARRAY(&remoteaddr, &addr, addrlen);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(datalen + ret, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote, daemon has 0 bytes buffered => -EAGAIN */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(7, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote, daemon has 0 bytes buffered => -EAGAIN */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = read(sd, data, datalen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(7, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Reset recv buffer for open sockets */
+
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 0));
+  for (count = 0; usrsocktest_daemon_get_num_recv_empty_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(5 * 1000);
+    }
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Receive data from remote, daemon returns 4 bytes. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(4, datalen);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abcd", data, 4);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(7 + 4, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(7 + 4, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: DelayedConnect
+ *
+ * Description:
+ *   Non-blocking & delayed connect
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void DelayedConnect(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  int count;
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  char databuf[4];
+  struct sockaddr_in remoteaddr;
+  socklen_t addrlen;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_recv_avail_from_start = false;
+  dconf->endpoint_recv_avail = 4;
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Try receive data, not connected yet. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = read(sd, data, datalen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Release delayed connect. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0;
+       count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Try receive data, not received data yet. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  addrlen = sizeof(remoteaddr);
+  ret = recvfrom(sd, data, datalen, 0, (FAR struct sockaddr *)&remoteaddr,
+                 &addrlen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(0, addrlen);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Reset recv buffer for open sockets */
+
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 0));
+  for (count = 0; usrsocktest_daemon_get_num_recv_empty_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(5 * 1000);
+    }
+
+  /* Receive data from remote, daemon returns 4 bytes. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(4, datalen);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abcd", data, 4);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(4, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Close socket. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV,
+                    usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_recv_empty_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: NoBlockRecv test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(NoBlockRecv)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: NoBlockRecv test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(NoBlockRecv)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(NoBlockRecv, Receive)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Receive(&usrsocktest_daemon_config);
+}
+
+TEST(NoBlockRecv, ReceiveDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Receive(&usrsocktest_daemon_config);
+}
+
+TEST(NoBlockRecv, DelayedConnect)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  DelayedConnect(&usrsocktest_daemon_config);
+}
+
+TEST(NoBlockRecv, DelayedConnectDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  DelayedConnect(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(NoBlockRecv)
+{
+  RUN_TEST_CASE(NoBlockRecv, Receive);
+  RUN_TEST_CASE(NoBlockRecv, ReceiveDelay);
+  RUN_TEST_CASE(NoBlockRecv, DelayedConnect);
+  RUN_TEST_CASE(NoBlockRecv, DelayedConnectDelay);
+}

examples/usrsocktest/usrsocktest_noblock_send.c

@@ -0,0 +1,414 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_noblock_send.c
+ * Send through the socket in non-blocking mode
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: Send
+ *
+ * Description:
+ *   Open socket, connect instantly and send
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void Send(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  int count;
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Do connect, should succeed instantly. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  if (!dconf->delay_all_responses)
+    {
+      TEST_ASSERT_EQUAL(0, ret);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+    }
+  else
+    {
+      TEST_ASSERT_EQUAL(-1, ret);
+      TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+      for (count = 0; usrsocktest_daemon_get_num_connected_sockets() != 1;
+           count++)
+        {
+          TEST_ASSERT_TRUE(count <= 3);
+          usleep(25 * 1000);
+        }
+
+      ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+      TEST_ASSERT_EQUAL(-1, ret);
+      TEST_ASSERT_EQUAL(EISCONN, errno);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+    }
+
+  /* Send data to remote */
+
+  data = "abcde";
+  datalen = strlen("abcde");
+  ret = sendto(sd, data, datalen, 0, NULL, 0);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+}
+
+/****************************************************************************
+ * Name: ConnectSend
+ *
+ * Description:
+ *   Open socket, connect is delayed and send
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void ConnectSend(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  int count;
+  ssize_t ret;
+  size_t datalen;
+  const void *data;
+  struct sockaddr_in addr;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_block_connect = true;
+  dconf->endpoint_block_send = true;
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Launch connect attempt, daemon delays actual connection until triggered. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Send data to remote, not connected yet. */
+
+  data = "abcde";
+  datalen = strlen("abcde");
+  ret = write(sd, data, datalen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Release delayed connect. */
+
+  TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
+  for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0;
+       count++)
+    {
+      TEST_ASSERT_TRUE(count <= 5);
+      usleep(10 * 1000);
+    }
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Send data to remote */
+
+  data = "abcde";
+  datalen = strlen("abcde");
+  ret = write(sd, data, datalen);
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EAGAIN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket. */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV,
+                    usrsocktest_daemon_get_num_waiting_connect_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: NoBlockSend test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(NoBlockSend)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: NoBlockSend test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(NoBlockSend)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(NoBlockSend, Send)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  Send(&usrsocktest_daemon_config);
+}
+
+TEST(NoBlockSend, SendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  Send(&usrsocktest_daemon_config);
+}
+
+TEST(NoBlockSend, ConnectSend)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(NoBlockSend, ConnectSendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(NoBlockSend)
+{
+  RUN_TEST_CASE(NoBlockSend, Send);
+  RUN_TEST_CASE(NoBlockSend, SendDelay);
+  RUN_TEST_CASE(NoBlockSend, ConnectSend);
+  RUN_TEST_CASE(NoBlockSend, ConnectSendDelay);
+}

examples/usrsocktest/usrsocktest_nodaemon.c

@@ -0,0 +1,154 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_nodaemon.c
+ * Tests without user socket daemon
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: NoDaemon test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(NoDaemon)
+{
+  sd = -1;
+}
+
+/****************************************************************************
+ * Name: NoDaemon test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(NoDaemon)
+{
+  int ret;
+
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+}
+
+/****************************************************************************
+ * Name: NoSocket
+ *
+ * Description:
+ *   Simple test for opening socket without usrsock daemon running
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST(NoDaemon, NoSocket)
+{
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_EQUAL(-1, sd);
+  TEST_ASSERT_TRUE(errno == EAFNOSUPPORT || errno == EPROTONOSUPPORT || errno == ENETDOWN);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(NoDaemon)
+{
+  RUN_TEST_CASE(NoDaemon, NoSocket);
+}

examples/usrsocktest/usrsocktest_poll.c

@@ -0,0 +1,646 @@
+/****************************************************************************
+ * examples/usrsocktest/usrsocktest_poll.c
+ * User socket polling tests
+ *
+ *   Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
+ *   Authors: Roman Saveljev <roman.saveljev@haltian.com>
+ *            Jussi Kivilinna <jussi.kivilinna@haltian.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/socket.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "defines.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static bool started;
+static int sd;
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: ConnectReceive
+ *
+ * Description:
+ *   Non-blocking connect and receive
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void ConnectReceive(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  int count;
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  char databuf[4];
+  struct pollfd pfd;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_recv_avail_from_start = false;
+  dconf->endpoint_recv_avail = 3;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Poll for input (instant timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, 0);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLERR);
+  TEST_ASSERT_EQUAL(POLLHUP, pfd.revents & POLLHUP);
+  TEST_ASSERT_EQUAL(POLLIN, pfd.revents & POLLIN);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLOUT);
+
+  /* Do connect, should succeed instantly. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  if (!dconf->delay_all_responses)
+    {
+      TEST_ASSERT_EQUAL(0, ret);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+    }
+  else
+    {
+      TEST_ASSERT_EQUAL(-1, ret);
+      TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+
+      for (count = 0; usrsocktest_daemon_get_num_connected_sockets() != 1; count++)
+        {
+          TEST_ASSERT_TRUE(count <= 3);
+          usleep(25 * 1000);
+        }
+
+      ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+      TEST_ASSERT_EQUAL(-1, ret);
+      TEST_ASSERT_EQUAL(EISCONN, errno);
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+      TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+    }
+
+  /* Poll for input (instant timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, 0);
+  TEST_ASSERT_EQUAL(0, ret);
+
+  /* Poll for input (with timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, 10);
+  TEST_ASSERT_EQUAL(0, ret);
+
+  /* Poll for input (no timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 100));
+  ret = poll(&pfd, 1, -1);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(POLLIN, pfd.revents);
+
+  /* Receive data from remote, daemon returns 3 bytes. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
+  TEST_ASSERT_EQUAL(3, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abc", data, 3);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(3, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Poll for input (instant timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, 0);
+  TEST_ASSERT_EQUAL(0, ret);
+
+  /* Make more data avail */
+
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 0));
+  for (count = 0; usrsocktest_daemon_get_num_recv_empty_sockets() > 0; count++)
+    {
+      TEST_ASSERT_TRUE(count <= 3);
+      usleep(5 * 1000);
+    }
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Poll for input (no timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, -1);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(POLLIN, pfd.revents);
+
+  /* Receive data from remote, daemon returns 3 bytes. */
+
+  data = databuf;
+  datalen = sizeof(databuf);
+  ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
+  TEST_ASSERT_EQUAL(3, ret);
+  TEST_ASSERT_EQUAL_UINT8_ARRAY("abc", data, 3);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(6, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(6, usrsocktest_daemon_get_recv_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: ConnectSend
+ *
+ * Description:
+ *   Non-blocking connect and receive
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void ConnectSend(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  ssize_t ret;
+  size_t datalen;
+  void *data;
+  struct sockaddr_in addr;
+  struct pollfd pfd;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_recv_avail_from_start = true;
+  dconf->endpoint_recv_avail = 3;
+  dconf->endpoint_block_send = false;
+  dconf->endpoint_block_connect = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Poll for input (instant timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, 0);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLERR);
+  TEST_ASSERT_EQUAL(POLLHUP, pfd.revents & POLLHUP);
+  TEST_ASSERT_EQUAL(POLLIN, pfd.revents & POLLIN);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLOUT);
+
+  /* Start non-blocking connect. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Poll for input (no timeout). As send is ready after established connection,
+   * poll will exit with POLLOUT. */
+
+  memset(&pfd, 0, sizeof(pfd));
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('E', 100));
+  pfd.fd = sd;
+  pfd.events = POLLOUT;
+  ret = poll(&pfd, 1, -1);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(POLLOUT, pfd.revents);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EISCONN, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Send data to remote. */
+
+  data = "abcdeFG";
+  datalen = strlen(data);
+  ret = write(sd, data, datalen);
+  TEST_ASSERT_EQUAL(datalen, ret);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(datalen, usrsocktest_daemon_get_send_bytes());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+}
+
+/****************************************************************************
+ * Name: DaemonAbort
+ *
+ * Description:
+ *   Poll with daemon abort
+ *
+ * Input Parameters:
+ *   dconf - socket daemon configuration
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+static void DaemonAbort(struct usrsocktest_daemon_conf_s *dconf)
+{
+  int flags;
+  ssize_t ret;
+  struct sockaddr_in addr;
+  struct pollfd pfd;
+
+  /* Start test daemon. */
+
+  dconf->endpoint_addr = "127.0.0.1";
+  dconf->endpoint_port = 255;
+  dconf->endpoint_recv_avail_from_start = false;
+  dconf->endpoint_recv_avail = 3;
+  dconf->endpoint_block_send = false;
+  dconf->endpoint_block_connect = true;
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
+  started = true;
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
+
+  /* Open socket */
+
+  sd = socket(AF_INET, SOCK_STREAM, 0);
+  TEST_ASSERT_TRUE(sd >= 0);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Make socket non-blocking */
+
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
+  ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
+  TEST_ASSERT_EQUAL(0, ret);
+  flags = fcntl(sd, F_GETFL, 0);
+  TEST_ASSERT_TRUE(flags >= 0);
+  TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
+  TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
+
+  /* Poll for input (instant timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLIN;
+  ret = poll(&pfd, 1, 0);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLERR);
+  TEST_ASSERT_EQUAL(POLLHUP, pfd.revents & POLLHUP);
+  TEST_ASSERT_EQUAL(POLLIN, pfd.revents & POLLIN);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLOUT);
+
+  /* Start non-blocking connect. */
+
+  inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(255);
+  ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
+  TEST_ASSERT_EQUAL(-1, ret);
+  TEST_ASSERT_EQUAL(EINPROGRESS, errno);
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
+
+  /* Poll for input (no timeout). Stop daemon forcefully. */
+
+  memset(&pfd, 0, sizeof(pfd));
+  TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('S', 100));
+  pfd.fd = sd;
+  pfd.events = POLLOUT;
+  ret = poll(&pfd, 1, -1);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(POLLERR, pfd.revents & POLLERR);
+  TEST_ASSERT_EQUAL(POLLHUP, pfd.revents & POLLHUP);
+
+  /* Stopping daemon should succeed. */
+
+  TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
+  started = false;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
+  TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
+
+  /* Poll for input (no timeout). */
+
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = sd;
+  pfd.events = POLLOUT;
+  ret = poll(&pfd, 1, -1);
+  TEST_ASSERT_EQUAL(1, ret);
+  TEST_ASSERT_EQUAL(POLLERR, pfd.revents & POLLERR);
+  TEST_ASSERT_EQUAL(POLLHUP, pfd.revents & POLLHUP);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLIN);
+  TEST_ASSERT_EQUAL(0, pfd.revents & POLLOUT);
+
+  /* Close socket */
+
+  TEST_ASSERT_TRUE(close(sd) >= 0);
+  sd = -1;
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_send_bytes());
+  TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_recv_empty_sockets());
+}
+
+/****************************************************************************
+ * Name: Poll test group setup
+ *
+ * Description:
+ *   Setup function executed before each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_SETUP(Poll)
+{
+  sd = -1;
+  started = false;
+}
+
+/****************************************************************************
+ * Name: Poll test group teardown
+ *
+ * Description:
+ *   Setup function executed after each testcase in this test group
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None
+ *
+ * Assumptions/Limitations:
+ *   None
+ *
+ ****************************************************************************/
+
+TEST_TEAR_DOWN(Poll)
+{
+  int ret;
+  if (sd >= 0)
+    {
+      ret = close(sd);
+      assert(ret >= 0);
+    }
+  if (started)
+    {
+      ret = usrsocktest_daemon_stop();
+      assert(ret == OK);
+    }
+}
+
+TEST(Poll, ConnectReceive)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ConnectReceive(&usrsocktest_daemon_config);
+}
+
+TEST(Poll, ConnectReceiveDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ConnectReceive(&usrsocktest_daemon_config);
+}
+
+TEST(Poll, ConnectSend)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(Poll, ConnectSendDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  ConnectSend(&usrsocktest_daemon_config);
+}
+
+TEST(Poll, DaemonAbort)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  DaemonAbort(&usrsocktest_daemon_config);
+}
+
+TEST(Poll, DaemonAbortDelay)
+{
+  usrsocktest_daemon_config = usrsocktest_daemon_defconf;
+  usrsocktest_daemon_config.delay_all_responses = true;
+  DaemonAbort(&usrsocktest_daemon_config);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+TEST_GROUP(Poll)
+{
+  RUN_TEST_CASE(Poll, ConnectReceive);
+  RUN_TEST_CASE(Poll, ConnectReceiveDelay);
+  RUN_TEST_CASE(Poll, ConnectSend);
+  RUN_TEST_CASE(Poll, ConnectSendDelay);
+  RUN_TEST_CASE(Poll, DaemonAbort);
+  RUN_TEST_CASE(Poll, DaemonAbortDelay);
+}

netutils/tftpc/tftpc_internal.h

@@ -48,6 +48,8 @@
 #include <stdbool.h>
 
 #include <nuttx/net/netconfig.h>
+#include <nuttx/net/ethernet.h>
+#include <nuttx/net/ip.h>
 
 /****************************************************************************
  * Pre-processor Definitions

nshlib/nsh_netcmds.c

@@ -575,7 +575,7 @@ static int nsh_gethostip(FAR char *hostname, FAR union ip_addr_u *ipaddr,
 static void wget_callback(FAR char **buffer, int offset, int datend,
                           FAR int *buflen, FAR void *arg)
 {
-  (void)write((int)arg, &((*buffer)[offset]), datend - offset);
+  (void)write((int)((intptr_t)arg), &((*buffer)[offset]), datend - offset);
 }
 #endif
 #endif
@@ -1668,7 +1668,7 @@ int cmd_wget(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 
   /* And perform the wget */
 
-  ret = wget(url, buffer, 512, wget_callback, (FAR void *)fd);
+  ret = wget(url, buffer, 512, wget_callback, (FAR void *)((intptr_t)fd));
   if (ret < 0)
     {
       nsh_output(vtbl, g_fmtcmdfailed, argv[0], "wget", NSH_ERRNO);