summaryrefslogtreecommitdiff
path: root/nuttx/lib/unistd
diff options
context:
space:
mode:
Diffstat (limited to 'nuttx/lib/unistd')
-rw-r--r--nuttx/lib/unistd/Make.defs42
-rw-r--r--nuttx/lib/unistd/lib_chdir.c179
-rw-r--r--nuttx/lib/unistd/lib_getcwd.c130
-rw-r--r--nuttx/lib/unistd/lib_getopt.c269
-rw-r--r--nuttx/lib/unistd/lib_getoptargp.c73
-rw-r--r--nuttx/lib/unistd/lib_getoptindp.c73
-rw-r--r--nuttx/lib/unistd/lib_getoptoptp.c73
7 files changed, 839 insertions, 0 deletions
diff --git a/nuttx/lib/unistd/Make.defs b/nuttx/lib/unistd/Make.defs
new file mode 100644
index 000000000..90f172406
--- /dev/null
+++ b/nuttx/lib/unistd/Make.defs
@@ -0,0 +1,42 @@
+############################################################################
+# lib/unistd/Make.defs
+#
+# Copyright (C) 2011 Gregory Nutt. All rights reserved.
+# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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.
+#
+############################################################################
+
+UNISTD_SRCS = lib_getopt.c lib_getoptargp.c lib_getoptindp.c lib_getoptoptp.c
+ifneq ($(CONFIG_NFILE_DESCRIPTORS),0)
+ifneq ($(CONFIG_DISABLE_ENVIRON),y)
+UNISTD_SRCS += lib_chdir.c lib_getcwd.c
+endif
+endif
+
diff --git a/nuttx/lib/unistd/lib_chdir.c b/nuttx/lib/unistd/lib_chdir.c
new file mode 100644
index 000000000..15dc64383
--- /dev/null
+++ b/nuttx/lib/unistd/lib_chdir.c
@@ -0,0 +1,179 @@
+/****************************************************************************
+ * lib/unistd/lib_chdir.c
+ *
+ * Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "lib_internal.h"
+
+#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_ENVIRON)
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: _trimdir
+ ****************************************************************************/
+
+#if 0
+static inline void _trimdir(char *path)
+{
+ /* Skip any trailing '/' characters (unless it is also the leading '/') */
+
+ int len = strlen(path) - 1;
+ while (len > 0 && path[len] == '/')
+ {
+ path[len] = '\0';
+ len--;
+ }
+}
+#else
+# define _trimdir(p)
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: chdir
+ *
+ * Description:
+ * The chdir() function causes the directory named by the pathname pointed
+ * to by the 'path' argument to become the current working directory; that
+ * is, the starting point for path searches for pathnames not beginning
+ * with '/'.
+ *
+ * Input Parmeters:
+ * path - A pointer to a directory to use as the new current working
+ * directory
+ *
+ * Returned Value:
+ * 0(OK) on success; -1(ERROR) on failure with errno set appropriately:
+ *
+ * EACCES
+ * Search permission is denied for any component of the pathname.
+ * ELOOP
+ * A loop exists in symbolic links encountered during resolution of the
+ * 'path' argument OR more that SYMLOOP_MAX symbolic links in the
+ * resolution of the 'path' argument.
+ * ENAMETOOLONG
+ * The length of the path argument exceeds PATH_MAX or a pathname component
+ * is longer than NAME_MAX.
+ * ENOENT
+ * A component of 'path' does not name an existing directory or path is
+ * an empty string.
+ * ENOTDIR
+ * A component of the pathname is not a directory.
+ *
+ ****************************************************************************/
+
+int chdir(FAR const char *path)
+{
+ struct stat buf;
+ char *oldpwd;
+ char *alloc;
+ int err;
+ int ret;
+
+ /* Verify the input parameters */
+
+ if (!path)
+ {
+ err = ENOENT;
+ goto errout;
+ }
+
+ /* Verify that 'path' refers to a directory */
+
+ ret = stat(path, &buf);
+ if (ret != 0)
+ {
+ err = ENOENT;
+ goto errout;
+ }
+
+ /* Something exists here... is it a directory? */
+
+ if (!S_ISDIR(buf.st_mode))
+ {
+ err = ENOTDIR;
+ goto errout;
+ }
+
+ /* Yes, it is a directory. Remove any trailing '/' characters from the path */
+
+ _trimdir(path);
+
+ /* Replace any preceding OLDPWD with the current PWD (this is to
+ * support 'cd -' in NSH)
+ */
+
+ sched_lock();
+ oldpwd = getenv("PWD");
+ if (!oldpwd)
+ {
+ oldpwd = CONFIG_LIB_HOMEDIR;
+ }
+
+ alloc = strdup(oldpwd); /* kludge needed because environment is realloc'ed */
+ setenv("OLDPWD", alloc, TRUE);
+ free(alloc);
+
+ /* Set the cwd to the input 'path' */
+
+ setenv("PWD", path, TRUE);
+ sched_unlock();
+ return OK;
+
+errout:
+ errno = err;
+ return ERROR;
+}
+#endif /* CONFIG_NFILE_DESCRIPTORS && !CONFIG_DISABLE_ENVIRON */
diff --git a/nuttx/lib/unistd/lib_getcwd.c b/nuttx/lib/unistd/lib_getcwd.c
new file mode 100644
index 000000000..6888470ac
--- /dev/null
+++ b/nuttx/lib/unistd/lib_getcwd.c
@@ -0,0 +1,130 @@
+/****************************************************************************
+ * lib/unistd/lib_getcwd.c
+ *
+ * Copyright (C) 2008, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "lib_internal.h"
+
+#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_ENVIRON)
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: getwcd
+ *
+ * Description:
+ * getcwd() function places the absolute pathname of the current working
+ * directory in the array pointed to by 'buf', and returns 'buf.' The
+ * pathname copied to the array shall contain no components that are
+ * symbolic links. The 'size' argument is the size in bytes of the
+ * character array pointed to by the 'buf' argument.
+ *
+ * Input Parmeters:
+ * buf - a pointer to the location in which the current working directory
+ * pathaname is returned.
+ * size - The size in bytes avaiable at 'buf'
+ *
+ * Returned Value:
+ * Upon successful completion, getcwd() returns the 'buf' argument.
+ * Otherwise, getcwd() returns a null pointer and sets errno to indicate
+ * the error:
+ *
+ * EINVAL
+ * The 'size' argument is 0 or the 'buf' argument is NULL.
+ * ERANGE
+ * The size argument is greater than 0, but is smaller than the length
+ * of the currrent working directory pathname +1.
+ * EACCES
+ * Read or search permission was denied for a component of the pathname.
+ * ENOMEM
+ * Insufficient storage space is available.
+ *
+ ****************************************************************************/
+
+FAR char *getcwd(FAR char *buf, size_t size)
+{
+ char *pwd;
+
+ /* Verify input parameters */
+
+ if (!buf || !size)
+ {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ /* If no working directory is defined, then default to the home directory */
+
+ pwd = getenv("PWD");
+ if (!pwd)
+ {
+ pwd = CONFIG_LIB_HOMEDIR;
+ }
+
+ /* Verify that the cwd will fit into the user-provided buffer */
+
+ if (strlen(pwd) + 1 > size)
+ {
+ errno = ERANGE;
+ return NULL;
+ }
+
+ /* Copy the cwd to the user buffer */
+
+ strcpy(buf, pwd);
+ sched_unlock();
+ return buf;
+}
+#endif /* CONFIG_NFILE_DESCRIPTORS && !CONFIG_DISABLE_ENVIRON */
diff --git a/nuttx/lib/unistd/lib_getopt.c b/nuttx/lib/unistd/lib_getopt.c
new file mode 100644
index 000000000..26a2c7fae
--- /dev/null
+++ b/nuttx/lib/unistd/lib_getopt.c
@@ -0,0 +1,269 @@
+/****************************************************************************
+ * lib/unistd/lib_getopt.c
+ *
+ * Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <stdbool.h>
+#include <unistd.h>
+#include <string.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Variables
+ ****************************************************************************/
+
+FAR char *optarg; /* Optional argument following option */
+int optind = 1; /* Index into argv */
+int optopt = '?'; /* unrecognized option character */
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+static FAR char *g_optptr = NULL;
+static bool g_binitialized = false;
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: getopt
+ *
+ * Description: getopt() parses command-line arguments. Its arguments argc
+ * and argv are the argument count and array as passed to the main()
+ * function on program invocation. An element of argv that starts with
+ * '-' is an option element. The characters of this element (aside from
+ * the initial '-') are option characters. If getopt() is called repeatedly,
+ * it returns successively each of the option characters from each of the
+ * option elements.
+ *
+ * If getopt() finds another option character, it returns that character,
+ * updating the external variable optind and a static variable nextchar so
+ * that the next call to getopt() can resume the scan with the following
+ * option character or argv-element.
+ *
+ * If there are no more option characters, getopt() returns -1. Then optind
+ * is the index in argv of the first argv-element that is not an option.
+ *
+ * The 'optstring' argument is a string containing the legitimate option
+ * characters. If such a character is followed by a colon, this indicates
+ * that the option requires an argument. If an argument is required for an
+ * option so getopt() places a pointer to the following text in the same
+ * argv-element, or the text of the following argv-element, in optarg.
+ *
+ * NOTES:
+ * 1. opterr is not supported and this implementation of getopt() never
+ * printfs error messages.
+ * 2. getopt is NOT threadsafe!
+ * 3. This version of getopt() does not reset global variables until
+ * -1 is returned. As a result, your command line parsing loops
+ * must call getopt() repeatedly and continue to parse if other
+ * errors are returned ('?' or ':') until getopt() finally returns -1.
+ * (You can also set optind to -1 to force a reset).
+ *
+ * Return: If an option was successfully found, then getopt() returns the
+ * option character. If all command-line options have been parsed, then
+ * getopt() returns -1. If getopt() encounters an option character that
+ * was not in optstring, then '?' is returned. If getopt() encounters an
+ * option with a missing argument, then the return value depends on the
+ * first character in optstring: if it is ':', then ':' is returned;
+ * otherwise '?' is returned.
+ *
+ ****************************************************************************/
+
+int getopt(int argc, FAR char *const argv[], FAR const char *optstring)
+{
+ if (argv && optstring && argc > 1)
+ {
+ int noarg_ret = '?';
+ char *optchar;
+
+ /* The inital value of optind is 1. If getopt() is called again in the
+ * program, optind must be reset to some value <= 1.
+ */
+
+ if (optind < 1 || !g_binitialized)
+ {
+ optind = 1; /* Skip over the program name */
+ g_optptr = NULL; /* Start at the beginning of the first argument */
+ g_binitialized = true; /* Now we are initialized */
+ }
+
+ /* If the first character of opstring s ':', then ':' is in the event of
+ * a missing argument. Otherwise '?' is returned.
+ */
+
+ if (*optstring == ':')
+ {
+ noarg_ret = ':';
+ optstring++;
+ }
+
+ /* Are we resuming in the middle, or at the end of a string of arguments?
+ * g_optptr == NULL means that we are started at the beginning of argv[optind];
+ * *g_optptr == \0 means that we are starting at the beginning of optind+1
+ */
+
+ while (!g_optptr || !*g_optptr)
+ {
+ /* We need to start at the beginning of the next argv. Check if we need
+ * to increment optind
+ */
+
+ if (g_optptr)
+ {
+ /* Yes.. Increment it and check for the case where where we have
+ * processed everything in the argv[] array.
+ */
+
+ optind++;
+ }
+
+ /* Check for the end of the argument list */
+
+ g_optptr = argv[optind];
+ if (!g_optptr)
+ {
+ /* There are no more arguments, we are finished */
+
+ g_binitialized = false;
+ return ERROR;
+ }
+
+ /* We are starting at the beginning of argv[optind]. In this case, the
+ * first character must be '-'
+ */
+
+ if (*g_optptr != '-')
+ {
+ /* The argument does not start with '-', we are finished */
+
+ g_binitialized = false;
+ return ERROR;
+ }
+
+ /* Skip over the '-' */
+
+ g_optptr++;
+ }
+
+ /* Special case handling of "-" and "-:" */
+
+ if (!*g_optptr)
+ {
+ optopt = '\0'; /* We'll fix up g_optptr the next time we are called */
+ return '?';
+ }
+
+ /* Handle the case of "-:" */
+
+ if (*g_optptr == ':')
+ {
+ optopt = ':';
+ g_optptr++;
+ return '?';
+ }
+
+ /* g_optptr now points at the next option and it is not something crazy.
+ * check if the option is in the list of valid options.
+ */
+
+ optchar = strchr(optstring, *g_optptr);
+ if (!optchar)
+ {
+ /* No this character is not in the list of valid options */
+
+ optopt = *g_optptr;
+ g_optptr++;
+ return '?';
+ }
+
+ /* Yes, the character is in the list of valid options. Does it have an
+ * required argument?
+ */
+
+ if (optchar[1] != ':')
+ {
+ /* No, no arguments. Just return the character that we found */
+
+ g_optptr++;
+ return *optchar;
+ }
+
+ /* Yes, it has a required argument. Is the required argument
+ * immediately after the command in this same argument?
+ */
+
+ if (g_optptr[1] != '\0')
+ {
+ /* Yes, return a pointer into the current argument */
+
+ optarg = &g_optptr[1];
+ optind++;
+ g_optptr = NULL;
+ return *optchar;
+ }
+
+ /* No.. is the optional argument the next argument in argv[] ? */
+
+ if (argv[optind+1] && *argv[optind+1] != '-')
+ {
+ /* Yes.. return that */
+
+ optarg = argv[optind+1];
+ optind += 2;
+ g_optptr = NULL;
+ return *optchar;
+ }
+
+ /* No argument was supplied */
+
+ optarg = NULL;
+ optopt = *optchar;
+ optind++;
+ return noarg_ret;
+ }
+
+ g_binitialized = false;
+ return ERROR;
+}
diff --git a/nuttx/lib/unistd/lib_getoptargp.c b/nuttx/lib/unistd/lib_getoptargp.c
new file mode 100644
index 000000000..4a483c051
--- /dev/null
+++ b/nuttx/lib/unistd/lib_getoptargp.c
@@ -0,0 +1,73 @@
+/****************************************************************************
+ * lib/unistd/lib_getoptargp.c
+ *
+ * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <unistd.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: getoptargp
+ *
+ * Description:
+ * Returns a pointer to optarg. This function is only used for external
+ * modules that need to access the base, global variable, optarg.
+ *
+ ****************************************************************************/
+
+FAR char **getoptargp(void)
+{
+ return &optarg;
+}
+
diff --git a/nuttx/lib/unistd/lib_getoptindp.c b/nuttx/lib/unistd/lib_getoptindp.c
new file mode 100644
index 000000000..002201aa9
--- /dev/null
+++ b/nuttx/lib/unistd/lib_getoptindp.c
@@ -0,0 +1,73 @@
+/****************************************************************************
+ * lib/unistd/lib_getoptindp.c
+ *
+ * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <unistd.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: getoptindp
+ *
+ * Description:
+ * Returns a pointer to optind. This function is only used for external
+ * modules that need to access the base, global variable, optind.
+ *
+ ****************************************************************************/
+
+int *getoptindp(void)
+{
+ return &optind;
+}
+
diff --git a/nuttx/lib/unistd/lib_getoptoptp.c b/nuttx/lib/unistd/lib_getoptoptp.c
new file mode 100644
index 000000000..2214f2d14
--- /dev/null
+++ b/nuttx/lib/unistd/lib_getoptoptp.c
@@ -0,0 +1,73 @@
+/****************************************************************************
+ * lib/unistd/lib_getoptoptp.c
+ *
+ * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <unistd.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: getoptoptp
+ *
+ * Description:
+ * Returns a pointer to optopt. This function is only used for external
+ * modules that need to access the base, global variable, optopt.
+ *
+ ****************************************************************************/
+
+int *getoptoptp(void)
+{
+ return &optopt;
+}
+