mirror of
https://github.com/glfw/glfw.git
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Replaced Free Getopt with getopt_port.
This commit is contained in:
Camilla Berglund
parent
af78508488
commit
18c635f474
@ -38,7 +38,7 @@ The following dependencies are needed by GLFW:
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The following dependencies are needed by the examples and test programs:
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- [Free Getopt](http://freegetopt.sourceforge.net/) for getopt
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- [getopt\_port](https://github.com/kimgr/getopt_port/) for getopt
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- [TinyCThread](https://gitorious.org/tinythread/tinycthread/) for threading
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- An OpenGL loader generated by [glad](https://github.com/Dav1dde/glad)
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467
deps/getopt.c
vendored
467
deps/getopt.c
vendored
@ -1,267 +1,230 @@
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/*****************************************************************************
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* getopt.c - competent and free getopt library.
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* $Header: /cvsroot/freegetopt/freegetopt/getopt.c,v 1.2 2003/10/26 03:10:20 vindaci Exp $
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*
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* Copyright (c)2002-2003 Mark K. Kim
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* All rights reserved.
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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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* * 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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*
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* * 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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*
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* * Neither the original author of this software nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software 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 LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#ifndef _CRT_SECURE_NO_WARNINGS
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#define _CRT_SECURE_NO_WARNINGS
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#endif
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/* Copyright (c) 2012, Kim Gräsman
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* All rights reserved.
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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 are met:
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Kim Gräsman nor the names of contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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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 "getopt.h"
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/* 2013-01-06 Camilla Berglund <elmindreda@elmindreda.org>
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*
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* Only define _CRT_SECURE_NO_WARNINGS if not already defined.
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*/
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/* 2012-08-12 Lambert Clara <lambert.clara@yahoo.fr>
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*
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* Constify third argument of getopt.
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*/
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/* 2011-07-27 Camilla Berglund <elmindreda@elmindreda.org>
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*
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* Added _CRT_SECURE_NO_WARNINGS macro.
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*/
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/* 2009-10-12 Camilla Berglund <elmindreda@elmindreda.org>
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*
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* Removed unused global static variable 'ID'.
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*/
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#include <stddef.h>
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#include <string.h>
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char* optarg = NULL;
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int optind = 0;
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int opterr = 1;
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int optopt = '?';
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const int no_argument = 0;
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const int required_argument = 1;
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const int optional_argument = 2;
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char* optarg;
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int optopt;
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/* The variable optind [...] shall be initialized to 1 by the system. */
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int optind = 1;
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int opterr;
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static char** prev_argv = NULL; /* Keep a copy of argv and argc to */
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static int prev_argc = 0; /* tell if getopt params change */
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static int argv_index = 0; /* Option we're checking */
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static int argv_index2 = 0; /* Option argument we're checking */
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static int opt_offset = 0; /* Index into compounded "-option" */
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static int dashdash = 0; /* True if "--" option reached */
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static int nonopt = 0; /* How many nonopts we've found */
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static char* optcursor = NULL;
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static void increment_index()
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{
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/* Move onto the next option */
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if(argv_index < argv_index2)
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{
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while(prev_argv[++argv_index] && prev_argv[argv_index][0] != '-'
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&& argv_index < argv_index2+1);
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}
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else argv_index++;
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opt_offset = 1;
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}
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/* Implemented based on [1] and [2] for optional arguments.
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optopt is handled FreeBSD-style, per [3].
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Other GNU and FreeBSD extensions are purely accidental.
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/*
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* Permutes argv[] so that the argument currently being processed is moved
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* to the end.
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[1] http://pubs.opengroup.org/onlinepubs/000095399/functions/getopt.html
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[2] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
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[3] http://www.freebsd.org/cgi/man.cgi?query=getopt&sektion=3&manpath=FreeBSD+9.0-RELEASE
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*/
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static int permute_argv_once()
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{
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/* Movability check */
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if(argv_index + nonopt >= prev_argc) return 1;
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/* Move the current option to the end, bring the others to front */
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else
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{
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char* tmp = prev_argv[argv_index];
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int getopt(int argc, char* const argv[], const char* optstring) {
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int optchar = -1;
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const char* optdecl = NULL;
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/* Move the data */
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memmove(&prev_argv[argv_index], &prev_argv[argv_index+1],
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sizeof(char**) * (prev_argc - argv_index - 1));
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prev_argv[prev_argc - 1] = tmp;
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optarg = NULL;
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opterr = 0;
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optopt = 0;
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nonopt++;
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return 0;
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}
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/* Unspecified, but we need it to avoid overrunning the argv bounds. */
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if (optind >= argc)
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goto no_more_optchars;
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/* If, when getopt() is called argv[optind] is a null pointer, getopt()
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shall return -1 without changing optind. */
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if (argv[optind] == NULL)
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goto no_more_optchars;
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/* If, when getopt() is called *argv[optind] is not the character '-',
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getopt() shall return -1 without changing optind. */
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if (*argv[optind] != '-')
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goto no_more_optchars;
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/* If, when getopt() is called argv[optind] points to the string "-",
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getopt() shall return -1 without changing optind. */
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if (strcmp(argv[optind], "-") == 0)
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goto no_more_optchars;
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/* If, when getopt() is called argv[optind] points to the string "--",
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getopt() shall return -1 after incrementing optind. */
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if (strcmp(argv[optind], "--") == 0) {
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++optind;
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goto no_more_optchars;
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}
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if (optcursor == NULL || *optcursor == '\0')
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optcursor = argv[optind] + 1;
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optchar = *optcursor;
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/* FreeBSD: The variable optopt saves the last known option character
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returned by getopt(). */
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optopt = optchar;
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/* The getopt() function shall return the next option character (if one is
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found) from argv that matches a character in optstring, if there is
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one that matches. */
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optdecl = strchr(optstring, optchar);
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if (optdecl) {
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/* [I]f a character is followed by a colon, the option takes an
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argument. */
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if (optdecl[1] == ':') {
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optarg = ++optcursor;
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if (*optarg == '\0') {
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/* GNU extension: Two colons mean an option takes an
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optional arg; if there is text in the current argv-element
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(i.e., in the same word as the option name itself, for example,
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"-oarg"), then it is returned in optarg, otherwise optarg is set
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to zero. */
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if (optdecl[2] != ':') {
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/* If the option was the last character in the string pointed to by
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an element of argv, then optarg shall contain the next element
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of argv, and optind shall be incremented by 2. If the resulting
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value of optind is greater than argc, this indicates a missing
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option-argument, and getopt() shall return an error indication.
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Otherwise, optarg shall point to the string following the
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option character in that element of argv, and optind shall be
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incremented by 1.
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*/
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if (++optind < argc) {
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optarg = argv[optind];
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} else {
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/* If it detects a missing option-argument, it shall return the
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colon character ( ':' ) if the first character of optstring
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was a colon, or a question-mark character ( '?' ) otherwise.
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*/
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optarg = NULL;
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optchar = (optstring[0] == ':') ? ':' : '?';
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}
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} else {
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optarg = NULL;
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}
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}
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optcursor = NULL;
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}
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} else {
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/* If getopt() encounters an option character that is not contained in
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optstring, it shall return the question-mark ( '?' ) character. */
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optchar = '?';
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}
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if (optcursor == NULL || *++optcursor == '\0')
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++optind;
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return optchar;
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no_more_optchars:
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optcursor = NULL;
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return -1;
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}
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/* Implementation based on [1].
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int getopt(int argc, char** argv, const char* optstr)
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{
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int c = 0;
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/* If we have new argv, reinitialize */
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if(prev_argv != argv || prev_argc != argc)
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{
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/* Initialize variables */
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prev_argv = argv;
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prev_argc = argc;
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argv_index = 1;
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argv_index2 = 1;
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opt_offset = 1;
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dashdash = 0;
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nonopt = 0;
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}
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/* Jump point in case we want to ignore the current argv_index */
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getopt_top:
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/* Misc. initializations */
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optarg = NULL;
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/* Dash-dash check */
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if(argv[argv_index] && !strcmp(argv[argv_index], "--"))
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{
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dashdash = 1;
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increment_index();
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}
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/* If we're at the end of argv, that's it. */
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if(argv[argv_index] == NULL)
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{
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c = -1;
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}
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/* Are we looking at a string? Single dash is also a string */
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else if(dashdash || argv[argv_index][0] != '-' || !strcmp(argv[argv_index], "-"))
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{
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/* If we want a string... */
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if(optstr[0] == '-')
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{
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c = 1;
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optarg = argv[argv_index];
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increment_index();
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}
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/* If we really don't want it (we're in POSIX mode), we're done */
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else if(optstr[0] == '+' || getenv("POSIXLY_CORRECT"))
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{
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c = -1;
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/* Everything else is a non-opt argument */
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nonopt = argc - argv_index;
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}
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/* If we mildly don't want it, then move it back */
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else
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{
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if(!permute_argv_once()) goto getopt_top;
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else c = -1;
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}
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}
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/* Otherwise we're looking at an option */
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else
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{
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char* opt_ptr = NULL;
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/* Grab the option */
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c = argv[argv_index][opt_offset++];
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/* Is the option in the optstr? */
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if(optstr[0] == '-') opt_ptr = strchr(optstr+1, c);
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else opt_ptr = strchr(optstr, c);
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/* Invalid argument */
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if(!opt_ptr)
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{
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if(opterr)
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{
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fprintf(stderr, "%s: invalid option -- %c\n", argv[0], c);
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}
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optopt = c;
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c = '?';
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/* Move onto the next option */
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increment_index();
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}
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/* Option takes argument */
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else if(opt_ptr[1] == ':')
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{
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/* ie, -oARGUMENT, -xxxoARGUMENT, etc. */
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if(argv[argv_index][opt_offset] != '\0')
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{
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optarg = &argv[argv_index][opt_offset];
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increment_index();
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}
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/* ie, -o ARGUMENT (only if it's a required argument) */
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else if(opt_ptr[2] != ':')
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{
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/* One of those "you're not expected to understand this" moment */
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if(argv_index2 < argv_index) argv_index2 = argv_index;
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while(argv[++argv_index2] && argv[argv_index2][0] == '-');
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optarg = argv[argv_index2];
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/* Don't cross into the non-option argument list */
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if(argv_index2 + nonopt >= prev_argc) optarg = NULL;
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/* Move onto the next option */
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increment_index();
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}
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else
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{
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/* Move onto the next option */
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increment_index();
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}
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/* In case we got no argument for an option with required argument */
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if(optarg == NULL && opt_ptr[2] != ':')
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{
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optopt = c;
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c = '?';
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if(opterr)
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{
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fprintf(stderr,"%s: option requires an argument -- %c\n",
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argv[0], optopt);
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}
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}
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}
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/* Option does not take argument */
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else
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{
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/* Next argv_index */
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if(argv[argv_index][opt_offset] == '\0')
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{
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increment_index();
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}
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}
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}
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/* Calculate optind */
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if(c == -1)
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{
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optind = argc - nonopt;
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}
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else
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{
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optind = argv_index;
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}
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return c;
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}
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/* vim:ts=3
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[1] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
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*/
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int getopt_long(int argc, char* const argv[], const char* optstring,
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const struct option* longopts, int* longindex) {
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const struct option* o = longopts;
|
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const struct option* match = NULL;
|
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int num_matches = 0;
|
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size_t argument_name_length = 0;
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const char* current_argument = NULL;
|
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int retval = -1;
|
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|
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optarg = NULL;
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optopt = 0;
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|
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if (optind >= argc)
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return -1;
|
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|
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if (strlen(argv[optind]) < 3 || strncmp(argv[optind], "--", 2) != 0)
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return getopt(argc, argv, optstring);
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|
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/* It's an option; starts with -- and is longer than two chars. */
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current_argument = argv[optind] + 2;
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argument_name_length = strcspn(current_argument, "=");
|
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for (; o->name; ++o) {
|
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if (strncmp(o->name, current_argument, argument_name_length) == 0) {
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match = o;
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++num_matches;
|
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}
|
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}
|
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|
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if (num_matches == 1) {
|
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/* If longindex is not NULL, it points to a variable which is set to the
|
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index of the long option relative to longopts. */
|
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if (longindex)
|
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*longindex = (match - longopts);
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|
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/* If flag is NULL, then getopt_long() shall return val.
|
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Otherwise, getopt_long() returns 0, and flag shall point to a variable
|
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which shall be set to val if the option is found, but left unchanged if
|
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the option is not found. */
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if (match->flag)
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*(match->flag) = match->val;
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|
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retval = match->flag ? 0 : match->val;
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|
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if (match->has_arg != no_argument) {
|
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optarg = strchr(argv[optind], '=');
|
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if (optarg != NULL)
|
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++optarg;
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|
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if (match->has_arg == required_argument) {
|
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/* Only scan the next argv for required arguments. Behavior is not
|
||||
specified, but has been observed with Ubuntu and Mac OSX. */
|
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if (optarg == NULL && ++optind < argc) {
|
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optarg = argv[optind];
|
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}
|
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|
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if (optarg == NULL)
|
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retval = ':';
|
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}
|
||||
} else if (strchr(argv[optind], '=')) {
|
||||
/* An argument was provided to a non-argument option.
|
||||
I haven't seen this specified explicitly, but both GNU and BSD-based
|
||||
implementations show this behavior.
|
||||
*/
|
||||
retval = '?';
|
||||
}
|
||||
} else {
|
||||
/* Unknown option or ambiguous match. */
|
||||
retval = '?';
|
||||
}
|
||||
|
||||
++optind;
|
||||
return retval;
|
||||
}
|
||||
|
||||
94
deps/getopt.h
vendored
94
deps/getopt.h
vendored
@ -1,63 +1,57 @@
|
||||
/*****************************************************************************
|
||||
* getopt.h - competent and free getopt library.
|
||||
* $Header: /cvsroot/freegetopt/freegetopt/getopt.h,v 1.2 2003/10/26 03:10:20 vindaci Exp $
|
||||
*
|
||||
* Copyright (c)2002-2003 Mark K. Kim
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * 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.
|
||||
*
|
||||
* * Neither the original author of this software nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
||||
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
|
||||
* DAMAGE.
|
||||
*/
|
||||
#ifndef GETOPT_H_
|
||||
#define GETOPT_H_
|
||||
/* Copyright (c) 2012, Kim Gräsman
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
* * Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
||||
* * 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.
|
||||
* * Neither the name of Kim Gräsman nor the names of 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 KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef INCLUDED_GETOPT_PORT_H
|
||||
#define INCLUDED_GETOPT_PORT_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern const int no_argument;
|
||||
extern const int required_argument;
|
||||
extern const int optional_argument;
|
||||
|
||||
extern char* optarg;
|
||||
extern int optind;
|
||||
extern int opterr;
|
||||
extern int optopt;
|
||||
extern int optind, opterr, optopt;
|
||||
|
||||
int getopt(int argc, char** argv, const char* optstr);
|
||||
struct option {
|
||||
const char* name;
|
||||
int has_arg;
|
||||
int* flag;
|
||||
int val;
|
||||
};
|
||||
|
||||
int getopt(int argc, char* const argv[], const char* optstring);
|
||||
|
||||
#ifdef __cplusplus
|
||||
int getopt_long(int argc, char* const argv[],
|
||||
const char* optstring, const struct option* longopts, int* longindex);
|
||||
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#endif /* GETOPT_H_ */
|
||||
|
||||
|
||||
/* vim:ts=3
|
||||
*/
|
||||
#endif // INCLUDED_GETOPT_PORT_H
|
||||
|
||||
Loading…
Reference in New Issue
Block a user