Add apps/examples/pppd test case. From Brennan Ashton.

examples/Kconfig

@@ -49,6 +49,7 @@ source "$APPSDIR/examples/ostest/Kconfig"
 source "$APPSDIR/examples/pashello/Kconfig"
 source "$APPSDIR/examples/pipe/Kconfig"
 source "$APPSDIR/examples/poll/Kconfig"
+source "$APPSDIR/examples/pppd/Kconfig"
 source "$APPSDIR/examples/pwm/Kconfig"
 source "$APPSDIR/examples/posix_spawn/Kconfig"
 source "$APPSDIR/examples/qencoder/Kconfig"

examples/Make.defs

@@ -222,6 +222,10 @@ ifeq ($(CONFIG_EXAMPLES_POLL),y)
 CONFIGURED_APPS += examples/poll
 endif
 
+ifeq ($(CONFIG_EXAMPLES_PPPD),y)
+CONFIGURED_APPS += examples/pppd
+endif
+
 ifeq ($(CONFIG_EXAMPLES_PWM),y)
 CONFIGURED_APPS += examples/pwm
 endif

examples/Makefile

@@ -45,7 +45,7 @@ SUBDIRS += nxffs nxflat nxhello nximage nxlines nxtext ostest pashello pipe
 SUBDIRS += poll posix_spawn pwm qencoder random relays rgmp romfs sendmail
 SUBDIRS += serialblaster serloop serialrx slcd smart smart_test tcpecho
 SUBDIRS += telnetd thttpd tiff timer touchscreen udp usbserial usbterm
-SUBDIRS += ustream udgram watchdog webserver wget wgetjson xmlrpc
+SUBDIRS += ustream udgram watchdog webserver wget wgetjson xmlrpc pppd
 
 # Sub-directories that might need context setup.  Directories may need
 # context setup for a variety of reasons, but the most common is because
@@ -60,6 +60,7 @@ CNTXTDIRS += ltdc modbus lcdrw mtdpart mtdrwb netpkt nettest nx nxhello
 CNTXTDIRS += nximage nxlines nxtext nrf24l01_term ostest random relays
 CNTXTDIRS += qencoder serialblasters lcd serialrx smart_test tcpecho telnetd
 CNTXTDIRS += tiff timer touchscreen usbterm udgram ustream watchdog wgetjson
+CNTXTDIRS += pppd
 endif
 
 all: nothing

examples/pppd/.gitignore

@@ -0,0 +1,11 @@
+/Make.dep
+/.depend
+/.built
+/*.asm
+/*.obj
+/*.rel
+/*.lst
+/*.sym
+/*.adb
+/*.lib
+/*.src

examples/pppd/Kconfig

@@ -0,0 +1,14 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+
+config EXAMPLES_PPPD
+	bool "pppd client example"
+	default n
+	---help---
+		Enable the pppd client example
+
+if EXAMPLES_PPPD
+
+endif

examples/pppd/Makefile

@@ -0,0 +1,137 @@
+############################################################################
+# apps/examples/pppd/Makefile
+#
+#   Copyright (C) 2015 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)/.config
+-include $(TOPDIR)/Make.defs
+include $(APPDIR)/Make.defs
+
+# pppd Example
+
+ASRCS =
+CSRCS =
+MAINSRC = pppd_main.c
+
+AOBJS = $(ASRCS:.S=$(OBJEXT))
+COBJS = $(CSRCS:.c=$(OBJEXT))
+MAINOBJ = $(MAINSRC:.c=$(OBJEXT))
+
+SRCS = $(ASRCS) $(CSRCS) $(MAINSRC)
+OBJS = $(AOBJS) $(COBJS)
+
+ifneq ($(CONFIG_BUILD_KERNEL),y)
+  OBJS += $(MAINOBJ)
+endif
+
+ifeq ($(CONFIG_WINDOWS_NATIVE),y)
+  BIN = ..\..\libapps$(LIBEXT)
+else
+ifeq ($(WINTOOL),y)
+  BIN = ..\\..\\libapps$(LIBEXT)
+else
+  BIN = ../../libapps$(LIBEXT)
+endif
+endif
+
+ifeq ($(WINTOOL),y)
+  INSTALL_DIR = "${shell cygpath -w $(BIN_DIR)}"
+else
+  INSTALL_DIR = $(BIN_DIR)
+endif
+
+CONFIG_EXAMPLES_PPPD_PROGNAME ?= pppd$(EXEEXT)
+PROGNAME = $(CONFIG_EXAMPLES_PPPD_PROGNAME)
+
+ROOTDEPPATH = --dep-path .
+
+# PPPD built-in application info
+
+APPNAME = pppd
+PRIORITY = SCHED_PRIORITY_DEFAULT
+STACKSIZE = 2048
+
+# Common build
+
+VPATH =
+
+all: .built
+.PHONY: clean depend distclean
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(MAINOBJ): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+.built: $(OBJS)
+	$(call ARCHIVE, $(BIN), $(OBJS))
+	@touch .built
+
+ifeq ($(CONFIG_BUILD_KERNEL),y)
+$(BIN_DIR)$(DELIM)$(PROGNAME): $(OBJS) $(MAINOBJ)
+	@echo "LD: $(PROGNAME)"
+	$(Q) $(LD) $(LDELFFLAGS) $(LDLIBPATH) -o $(INSTALL_DIR)$(DELIM)$(PROGNAME) $(ARCHCRT0OBJ) $(MAINOBJ) $(LDLIBS)
+	$(Q) $(NM) -u  $(INSTALL_DIR)$(DELIM)$(PROGNAME)
+
+install: $(BIN_DIR)$(DELIM)$(PROGNAME)
+
+else
+install:
+
+endif
+
+ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
+$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
+	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
+
+context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
+else
+context:
+endif
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, .built)
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep

examples/pppd/pppd_main.c

@@ -0,0 +1,92 @@
+/****************************************************************************
+ * examples/pppd/pppd_main.c
+ *
+ *   Copyright (C) 2015 Brennan Ashton. All rights reserved.
+ *   Author: Brennan Ashton <brennan@ombitron.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 <stdio.h>
+
+#include <apps/netutils/pppd.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static struct chat_script_s connect_script =
+{
+  .timeout = 30,
+  .lines =
+  {
+    {"AT",                                 "OK"},
+    {"AT+CGDCONT = 1,\"IP\",\"internet\"", "OK"},
+    {"ATD*99***1#",                        "CONNECT"},
+    {0, 0}
+  },
+};
+
+static struct chat_script_s disconnect_script =
+{
+  .timeout = 30,
+  .lines =
+  {
+    {"ATZ",                                "OK"},
+    {0, 0}
+  },
+};
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: pppd_main
+ ****************************************************************************/
+
+int pppd_main(int argc, char *argv[])
+{
+  struct pppd_settings_s pppd_settings =
+  {
+    .disconnect_script = &disconnect_script,
+    .connect_script = &connect_script,
+    .ttyname = "/dev/ttyS2",
+  };
+  return pppd(&pppd_settings);
+}