apps/examples/uid: Demo used to verify PASSWD and GROUP interfaces.
This commit is contained in:
Gregory Nutt
parent
735644766f
commit
1fc73b2d45
12
examples/uid/.gitignore
vendored
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12
examples/uid/.gitignore
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/hello
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/Make.dep
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/.depend
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/.built
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/*.asm
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/*.obj
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/*.rel
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/*.lst
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/*.sym
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/*.adb
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/*.lib
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/*.src
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30
examples/uid/Kconfig
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30
examples/uid/Kconfig
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#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config EXAMPLES_UID
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tristate "UID/GID example"
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default n
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---help---
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Enable the UID/GID example
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if EXAMPLES_UID
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config EXAMPLES_UID_PROGNAME
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string "Program name"
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default "uid"
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depends on BUILD_LOADABLE
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---help---
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This is the name of the program that will be use when the NSH ELF
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program is installed.
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config EXAMPLES_UID_PRIORITY
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int "UID/GID task priority"
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default 100
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config EXAMPLES_UID_STACKSIZE
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int "UID/GID stack size"
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default 2048
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endif
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39
examples/uid/Make.defs
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39
examples/uid/Make.defs
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############################################################################
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# apps/examples/uid/Make.defs
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# Adds selected applications to apps/ build
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#
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# Copyright (C) 2019 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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ifneq ($(CONFIG_EXAMPLES_UID),)
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CONFIGURED_APPS += examples/uid
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endif
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59
examples/uid/Makefile
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59
examples/uid/Makefile
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############################################################################
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# apps/examples/uid/Makefile
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#
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# Copyright (C) 2019 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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-include $(TOPDIR)/Make.defs
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# UID/GID built-in application info
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CONFIG_EXAMPLES_UID_PRIORITY ?= SCHED_PRIORITY_DEFAULT
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CONFIG_EXAMPLES_UID_STACKSIZE ?= 2048
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APPNAME = uid
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PRIORITY = $(CONFIG_EXAMPLES_UID_PRIORITY)
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STACKSIZE = $(CONFIG_EXAMPLES_UID_STACKSIZE)
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# UID/GID Example
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ASRCS =
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CSRCS =
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MAINSRC = uid_main.c
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CONFIG_EXAMPLES_UID_PROGNAME ?= uid$(EXEEXT)
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PROGNAME = $(CONFIG_EXAMPLES_UID_PROGNAME)
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MODULE = CONFIG_EXAMPLES_UID
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include $(APPDIR)/Application.mk
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264
examples/uid/uid_main.c
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264
examples/uid/uid_main.c
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/****************************************************************************
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* examples/uid/uid_main.c
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pwd.h>
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#include <grp.h>
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* show_usage
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****************************************************************************/
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static void show_usage(FAR const char *progname, FAR FILE *stream,
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int exit_code)
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{
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fprintf(stream, "USAGE:\n");
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fprintf(stream, "\t%s -uid <uid> - Show user info by ID\n", progname);
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fprintf(stream, "\t%s -uname <name> - Show user info by name\n", progname);
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fprintf(stream, "\t%s -gid <gid> - Show group info by ID\n", progname);
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fprintf(stream, "\t%s -gname <name> - Show group info by name\n", progname);
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fprintf(stream, "\t%s -h - Show this help info\n", progname);
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exit(exit_code);
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}
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/****************************************************************************
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* show_pwd
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****************************************************************************/
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static void show_pwd(FAR struct passwd *pwd)
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{
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printf("Name: %s\n", pwd->pw_name);
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printf("UID: %d\n", pwd->pw_uid);
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printf("GID: %d\n", pwd->pw_gid);
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printf("Home: %s\n", pwd->pw_dir);
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printf("Shell: %s\n", pwd->pw_shell);
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}
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/****************************************************************************
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* show_grp
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****************************************************************************/
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static void show_grp(FAR struct group *grp)
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{
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printf("Name: %s\n", grp->gr_name);
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printf("Passwd: %d\n", grp->gr_passwd);
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printf("GID: %d\n", grp->gr_gid);
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printf("Mem: %s\n", grp->gr_mem);
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}
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/****************************************************************************
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* show_user_by_id
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****************************************************************************/
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static void show_user_by_id(uid_t uid)
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{
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FAR struct passwd *result;
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struct passwd pwd;
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char buffer[80];
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int ret;
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ret = getpwuid_r(uid, &pwd, buffer, 80, &result);
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if (ret != 0)
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{
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fprintf(stderr, "ERPOR: getpwuid_r failed: %d\n", ret);
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}
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else if (result == NULL)
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{
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fprintf(stderr, "No such user ID: %d\n", uid);
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}
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else
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{
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show_pwd(&pwd);
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}
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}
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/****************************************************************************
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* show_user_by_name
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****************************************************************************/
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static void show_user_by_name(FAR const char *uname)
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{
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FAR struct passwd *result;
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struct passwd pwd;
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char buffer[80];
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int ret;
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ret = getpwnam_r(uname, &pwd, buffer, 80, &result);
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if (ret != 0)
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{
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fprintf(stderr, "ERPOR: getpwnam_r failed: %d\n", ret);
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}
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else if (result == NULL)
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{
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fprintf(stderr, "No such user name: %s\n", uname);
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}
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else
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{
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show_pwd(&pwd);
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}
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}
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/****************************************************************************
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* show_group_by_id
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****************************************************************************/
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static void show_group_by_id(gid_t gid)
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{
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FAR struct group *result;
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struct group grp;
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char buffer[80];
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int ret;
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ret = getgrgid_r(gid, &grp, buffer, 80, &result);
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if (ret != 0)
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{
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fprintf(stderr, "ERPOR: getgrgid_r failed: %d\n", ret);
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}
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else if (result == NULL)
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{
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fprintf(stderr, "No such group ID: %d\n", gid);
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}
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else
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{
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show_grp(&grp);
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}
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}
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/****************************************************************************
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* show_group_by_name
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****************************************************************************/
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static void show_group_by_name(FAR const char *gname)
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{
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FAR struct group *result;
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struct group grp;
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char buffer[80];
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int ret;
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ret = getgrnam_r(gname, &grp, buffer, 80, &result);
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if (ret != 0)
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{
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fprintf(stderr, "ERPOR: getgrnam_r failed: %d\n", ret);
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}
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else if (result == NULL)
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{
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fprintf(stderr, "No such group name: %s\n", gname);
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}
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else
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{
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show_grp(&grp);
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* uid_main
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****************************************************************************/
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#if defined(BUILD_MODULE)
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int main(int argc, FAR char *argv[])
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#else
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int uid_main(int argc, char *argv[])
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#endif
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{
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if (argc < 2)
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{
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fprintf(stderr, "ERROR: Missing options\n");
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show_usage(argv[0], stderr, EXIT_FAILURE);
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}
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/* Check for help */
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if (strcmp(argv[1], "-h") == 0)
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{
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if (argc != 2)
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{
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fprintf(stderr,
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"ERROR: Invalid number of arguments for help: %d\n",
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argc - 1);
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show_usage(argv[0], stderr, EXIT_FAILURE);
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}
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show_usage(argv[0], stdout, EXIT_SUCCESS);
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}
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if (argc != 3)
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{
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fprintf(stderr, "ERROR: Invalid number of arguments: %d\n",
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argc - 1);
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show_usage(argv[0], stderr, EXIT_FAILURE);
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}
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if (strcmp(argv[1], "-uid") == 0)
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{
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int uid = atoi(argv[2]);
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show_user_by_id((uid_t)uid);
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}
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else if (strcmp(argv[1], "-uname") == 0)
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{
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show_user_by_name(argv[2]);
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}
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else if (strcmp(argv[1], "-gid") == 0)
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{
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int gid = atoi(argv[2]);
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show_group_by_id((gid_t)gid);
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}
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else if (strcmp(argv[1], "-gname") == 0)
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{
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show_group_by_name(argv[2]);
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}
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else
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{
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fprintf(stderr, "ERROR: Unrecognized option: %s\n", argv[1]);
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show_usage(argv[0], stderr, EXIT_FAILURE);
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}
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return EXIT_SUCCESS;
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}
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