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This commit is contained in:
patacongo
@@ -0,0 +1,49 @@
|
||||
############################################################################
|
||||
# lib/unistd/Make.defs
|
||||
#
|
||||
# Copyright (C) 2011-2012 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.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
# Add the unistd C files to the build
|
||||
|
||||
CSRCS += lib_getopt.c lib_getoptargp.c lib_getoptindp.c lib_getoptoptp.c
|
||||
|
||||
ifneq ($(CONFIG_NFILE_DESCRIPTORS),0)
|
||||
ifneq ($(CONFIG_DISABLE_ENVIRON),y)
|
||||
CSRCS += lib_chdir.c lib_getcwd.c
|
||||
endif
|
||||
endif
|
||||
|
||||
# Add the unistd directory to the build
|
||||
|
||||
DEPPATH += --dep-path unistd
|
||||
VPATH += :unistd
|
||||
@@ -0,0 +1,179 @@
|
||||
/****************************************************************************
|
||||
* lib/unistd/lib_chdir.c
|
||||
*
|
||||
* Copyright (C) 2008-2009, 2011 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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);
|
||||
lib_free(alloc);
|
||||
|
||||
/* Set the cwd to the input 'path' */
|
||||
|
||||
setenv("PWD", path, TRUE);
|
||||
sched_unlock();
|
||||
return OK;
|
||||
|
||||
errout:
|
||||
set_errno(err);
|
||||
return ERROR;
|
||||
}
|
||||
#endif /* CONFIG_NFILE_DESCRIPTORS && !CONFIG_DISABLE_ENVIRON */
|
||||
@@ -0,0 +1,132 @@
|
||||
/****************************************************************************
|
||||
* lib/unistd/lib_getcwd.c
|
||||
*
|
||||
* Copyright (C) 2008, 2011 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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 */
|
||||
|
||||
#ifdef CONFIG_DEBUG
|
||||
if (!buf || !size)
|
||||
{
|
||||
set_errno(EINVAL);
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* 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)
|
||||
{
|
||||
set_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 */
|
||||
@@ -0,0 +1,269 @@
|
||||
/****************************************************************************
|
||||
* lib/unistd/lib_getopt.c
|
||||
*
|
||||
* Copyright (C) 2007-2009, 2011 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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;
|
||||
}
|
||||
@@ -0,0 +1,73 @@
|
||||
/****************************************************************************
|
||||
* lib/unistd/lib_getoptargp.c
|
||||
*
|
||||
* Copyright (C) 2009, 2011 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,73 @@
|
||||
/****************************************************************************
|
||||
* lib/unistd/lib_getoptindp.c
|
||||
*
|
||||
* Copyright (C) 2009, 2011 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,73 @@
|
||||
/****************************************************************************
|
||||
* lib/unistd/lib_getoptoptp.c
|
||||
*
|
||||
* Copyright (C) 2009, 2011 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* 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;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user