1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/sdl/getopt.c	Sun Mar 04 21:06:50 2012 -0600
     1.3 @@ -0,0 +1,1060 @@
     1.4 +/* Getopt for GNU.
     1.5 +   NOTE: getopt is now part of the C library, so if you don't know what
     1.6 +   "Keep this file name-space clean" means, talk to drepper@gnu.org
     1.7 +   before changing it!
     1.8 +
     1.9 +   Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98
    1.10 +   	Free Software Foundation, Inc.
    1.11 +
    1.12 +   NOTE: This source is derived from an old version taken from the GNU C
    1.13 +   Library (glibc).
    1.14 +
    1.15 +   This program is free software; you can redistribute it and/or modify it
    1.16 +   under the terms of the GNU General Public License as published by the
    1.17 +   Free Software Foundation; either version 2, or (at your option) any
    1.18 +   later version.
    1.19 +
    1.20 +   This program is distributed in the hope that it will be useful,
    1.21 +   but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.22 +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.23 +   GNU General Public License for more details.
    1.24 +
    1.25 +   You should have received a copy of the GNU General Public License
    1.26 +   along with this program; if not, write to the Free Software
    1.27 +   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
    1.28 +   USA.  */
    1.29 +
    1.30 +/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
    1.31 +   Ditto for AIX 3.2 and <stdlib.h>.  */
    1.32 +#ifndef _NO_PROTO
    1.33 +# define _NO_PROTO
    1.34 +#endif
    1.35 +
    1.36 +#ifdef HAVE_CONFIG_H
    1.37 +# include <config.h>
    1.38 +#endif
    1.39 +
    1.40 +#if !defined __STDC__ || !__STDC__
    1.41 +/* This is a separate conditional since some stdc systems
    1.42 +   reject `defined (const)'.  */
    1.43 +# ifndef const
    1.44 +#  define const
    1.45 +# endif
    1.46 +#endif
    1.47 +
    1.48 +#include <stdio.h>
    1.49 +
    1.50 +/* Comment out all this code if we are using the GNU C Library, and are not
    1.51 +   actually compiling the library itself.  This code is part of the GNU C
    1.52 +   Library, but also included in many other GNU distributions.  Compiling
    1.53 +   and linking in this code is a waste when using the GNU C library
    1.54 +   (especially if it is a shared library).  Rather than having every GNU
    1.55 +   program understand `configure --with-gnu-libc' and omit the object files,
    1.56 +   it is simpler to just do this in the source for each such file.  */
    1.57 +
    1.58 +#define GETOPT_INTERFACE_VERSION 2
    1.59 +#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
    1.60 +# include <gnu-versions.h>
    1.61 +# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
    1.62 +#  define ELIDE_CODE
    1.63 +# endif
    1.64 +#endif
    1.65 +
    1.66 +#ifndef ELIDE_CODE
    1.67 +
    1.68 +
    1.69 +/* This needs to come after some library #include
    1.70 +   to get __GNU_LIBRARY__ defined.  */
    1.71 +#ifdef	__GNU_LIBRARY__
    1.72 +/* Don't include stdlib.h for non-GNU C libraries because some of them
    1.73 +   contain conflicting prototypes for getopt.  */
    1.74 +# include <stdlib.h>
    1.75 +# include <unistd.h>
    1.76 +#endif	/* GNU C library.  */
    1.77 +
    1.78 +#ifdef VMS
    1.79 +# include <unixlib.h>
    1.80 +# if HAVE_STRING_H - 0
    1.81 +#  include <string.h>
    1.82 +# endif
    1.83 +#endif
    1.84 +
    1.85 +#ifndef _
    1.86 +/* This is for other GNU distributions with internationalized messages.
    1.87 +   When compiling libc, the _ macro is predefined.  */
    1.88 +# ifdef HAVE_LIBINTL_H
    1.89 +#  include <libintl.h>
    1.90 +#  define _(msgid)	gettext (msgid)
    1.91 +# else
    1.92 +#  define _(msgid)	(msgid)
    1.93 +# endif
    1.94 +#endif
    1.95 +
    1.96 +#ifdef _MSC_VER
    1.97 +#include <string.h>
    1.98 +#endif
    1.99 +
   1.100 +/* This version of `getopt' appears to the caller like standard Unix `getopt'
   1.101 +   but it behaves differently for the user, since it allows the user
   1.102 +   to intersperse the options with the other arguments.
   1.103 +
   1.104 +   As `getopt' works, it permutes the elements of ARGV so that,
   1.105 +   when it is done, all the options precede everything else.  Thus
   1.106 +   all application programs are extended to handle flexible argument order.
   1.107 +
   1.108 +   Setting the environment variable POSIXLY_CORRECT disables permutation.
   1.109 +   Then the behavior is completely standard.
   1.110 +
   1.111 +   GNU application programs can use a third alternative mode in which
   1.112 +   they can distinguish the relative order of options and other arguments.  */
   1.113 +
   1.114 +#include "getopt.h"
   1.115 +
   1.116 +/* For communication from `getopt' to the caller.
   1.117 +   When `getopt' finds an option that takes an argument,
   1.118 +   the argument value is returned here.
   1.119 +   Also, when `ordering' is RETURN_IN_ORDER,
   1.120 +   each non-option ARGV-element is returned here.  */
   1.121 +
   1.122 +char *optarg = NULL;
   1.123 +
   1.124 +/* Index in ARGV of the next element to be scanned.
   1.125 +   This is used for communication to and from the caller
   1.126 +   and for communication between successive calls to `getopt'.
   1.127 +
   1.128 +   On entry to `getopt', zero means this is the first call; initialize.
   1.129 +
   1.130 +   When `getopt' returns -1, this is the index of the first of the
   1.131 +   non-option elements that the caller should itself scan.
   1.132 +
   1.133 +   Otherwise, `optind' communicates from one call to the next
   1.134 +   how much of ARGV has been scanned so far.  */
   1.135 +
   1.136 +/* 1003.2 says this must be 1 before any call.  */
   1.137 +int optind = 1;
   1.138 +
   1.139 +/* Formerly, initialization of getopt depended on optind==0, which
   1.140 +   causes problems with re-calling getopt as programs generally don't
   1.141 +   know that. */
   1.142 +
   1.143 +int __getopt_initialized = 0;
   1.144 +
   1.145 +/* The next char to be scanned in the option-element
   1.146 +   in which the last option character we returned was found.
   1.147 +   This allows us to pick up the scan where we left off.
   1.148 +
   1.149 +   If this is zero, or a null string, it means resume the scan
   1.150 +   by advancing to the next ARGV-element.  */
   1.151 +
   1.152 +static char *nextchar;
   1.153 +
   1.154 +/* Callers store zero here to inhibit the error message
   1.155 +   for unrecognized options.  */
   1.156 +
   1.157 +int opterr = 1;
   1.158 +
   1.159 +/* Set to an option character which was unrecognized.
   1.160 +   This must be initialized on some systems to avoid linking in the
   1.161 +   system's own getopt implementation.  */
   1.162 +
   1.163 +int optopt = '?';
   1.164 +
   1.165 +/* Describe how to deal with options that follow non-option ARGV-elements.
   1.166 +
   1.167 +   If the caller did not specify anything,
   1.168 +   the default is REQUIRE_ORDER if the environment variable
   1.169 +   POSIXLY_CORRECT is defined, PERMUTE otherwise.
   1.170 +
   1.171 +   REQUIRE_ORDER means don't recognize them as options;
   1.172 +   stop option processing when the first non-option is seen.
   1.173 +   This is what Unix does.
   1.174 +   This mode of operation is selected by either setting the environment
   1.175 +   variable POSIXLY_CORRECT, or using `+' as the first character
   1.176 +   of the list of option characters.
   1.177 +
   1.178 +   PERMUTE is the default.  We permute the contents of ARGV as we scan,
   1.179 +   so that eventually all the non-options are at the end.  This allows options
   1.180 +   to be given in any order, even with programs that were not written to
   1.181 +   expect this.
   1.182 +
   1.183 +   RETURN_IN_ORDER is an option available to programs that were written
   1.184 +   to expect options and other ARGV-elements in any order and that care about
   1.185 +   the ordering of the two.  We describe each non-option ARGV-element
   1.186 +   as if it were the argument of an option with character code 1.
   1.187 +   Using `-' as the first character of the list of option characters
   1.188 +   selects this mode of operation.
   1.189 +
   1.190 +   The special argument `--' forces an end of option-scanning regardless
   1.191 +   of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
   1.192 +   `--' can cause `getopt' to return -1 with `optind' != ARGC.  */
   1.193 +
   1.194 +static enum
   1.195 +{
   1.196 +  REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
   1.197 +} ordering;
   1.198 +
   1.199 +/* Value of POSIXLY_CORRECT environment variable.  */
   1.200 +static char *posixly_correct;
   1.201 +
   1.202 +#ifdef	__GNU_LIBRARY__
   1.203 +/* We want to avoid inclusion of string.h with non-GNU libraries
   1.204 +   because there are many ways it can cause trouble.
   1.205 +   On some systems, it contains special magic macros that don't work
   1.206 +   in GCC.  */
   1.207 +# include <string.h>
   1.208 +# define my_index	strchr
   1.209 +#else
   1.210 +
   1.211 +# if HAVE_STRING_H
   1.212 +#  include <string.h>
   1.213 +# else
   1.214 +#  if HAVE_STRINGS_H
   1.215 +#   include <strings.h>
   1.216 +#  endif
   1.217 +# endif
   1.218 +
   1.219 +/* Avoid depending on library functions or files
   1.220 +   whose names are inconsistent.  */
   1.221 +
   1.222 +#ifndef getenv
   1.223 +extern char *getenv ();
   1.224 +#endif
   1.225 +
   1.226 +static char *
   1.227 +my_index (str, chr)
   1.228 +     const char *str;
   1.229 +     int chr;
   1.230 +{
   1.231 +  while (*str)
   1.232 +    {
   1.233 +      if (*str == chr)
   1.234 +	return (char *) str;
   1.235 +      str++;
   1.236 +    }
   1.237 +  return 0;
   1.238 +}
   1.239 +
   1.240 +/* If using GCC, we can safely declare strlen this way.
   1.241 +   If not using GCC, it is ok not to declare it.  */
   1.242 +#ifdef __GNUC__
   1.243 +/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
   1.244 +   That was relevant to code that was here before.  */
   1.245 +# if (!defined __STDC__ || !__STDC__) && !defined strlen
   1.246 +/* gcc with -traditional declares the built-in strlen to return int,
   1.247 +   and has done so at least since version 2.4.5. -- rms.  */
   1.248 +extern int strlen (const char *);
   1.249 +# endif /* not __STDC__ */
   1.250 +#endif /* __GNUC__ */
   1.251 +
   1.252 +#endif /* not __GNU_LIBRARY__ */
   1.253 +
   1.254 +/* Handle permutation of arguments.  */
   1.255 +
   1.256 +/* Describe the part of ARGV that contains non-options that have
   1.257 +   been skipped.  `first_nonopt' is the index in ARGV of the first of them;
   1.258 +   `last_nonopt' is the index after the last of them.  */
   1.259 +
   1.260 +static int first_nonopt;
   1.261 +static int last_nonopt;
   1.262 +
   1.263 +#ifdef _LIBC
   1.264 +/* Bash 2.0 gives us an environment variable containing flags
   1.265 +   indicating ARGV elements that should not be considered arguments.  */
   1.266 +
   1.267 +/* Defined in getopt_init.c  */
   1.268 +extern char *__getopt_nonoption_flags;
   1.269 +
   1.270 +static int nonoption_flags_max_len;
   1.271 +static int nonoption_flags_len;
   1.272 +
   1.273 +static int original_argc;
   1.274 +static char *const *original_argv;
   1.275 +
   1.276 +/* Make sure the environment variable bash 2.0 puts in the environment
   1.277 +   is valid for the getopt call we must make sure that the ARGV passed
   1.278 +   to getopt is that one passed to the process.  */
   1.279 +static void
   1.280 +__attribute__ ((unused))
   1.281 +store_args_and_env (int argc, char *const *argv)
   1.282 +{
   1.283 +  /* XXX This is no good solution.  We should rather copy the args so
   1.284 +     that we can compare them later.  But we must not use malloc(3).  */
   1.285 +  original_argc = argc;
   1.286 +  original_argv = argv;
   1.287 +}
   1.288 +# ifdef text_set_element
   1.289 +text_set_element (__libc_subinit, store_args_and_env);
   1.290 +# endif /* text_set_element */
   1.291 +
   1.292 +# define SWAP_FLAGS(ch1, ch2) \
   1.293 +  if (nonoption_flags_len > 0)						      \
   1.294 +    {									      \
   1.295 +      char __tmp = __getopt_nonoption_flags[ch1];			      \
   1.296 +      __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2];	      \
   1.297 +      __getopt_nonoption_flags[ch2] = __tmp;				      \
   1.298 +    }
   1.299 +#else	/* !_LIBC */
   1.300 +# define SWAP_FLAGS(ch1, ch2)
   1.301 +#endif	/* _LIBC */
   1.302 +
   1.303 +/* Exchange two adjacent subsequences of ARGV.
   1.304 +   One subsequence is elements [first_nonopt,last_nonopt)
   1.305 +   which contains all the non-options that have been skipped so far.
   1.306 +   The other is elements [last_nonopt,optind), which contains all
   1.307 +   the options processed since those non-options were skipped.
   1.308 +
   1.309 +   `first_nonopt' and `last_nonopt' are relocated so that they describe
   1.310 +   the new indices of the non-options in ARGV after they are moved.  */
   1.311 +
   1.312 +#if defined __STDC__ && __STDC__
   1.313 +static void exchange (char **);
   1.314 +#endif
   1.315 +
   1.316 +static void
   1.317 +exchange (argv)
   1.318 +     char **argv;
   1.319 +{
   1.320 +  int bottom = first_nonopt;
   1.321 +  int middle = last_nonopt;
   1.322 +  int top = optind;
   1.323 +  char *tem;
   1.324 +
   1.325 +  /* Exchange the shorter segment with the far end of the longer segment.
   1.326 +     That puts the shorter segment into the right place.
   1.327 +     It leaves the longer segment in the right place overall,
   1.328 +     but it consists of two parts that need to be swapped next.  */
   1.329 +
   1.330 +#ifdef _LIBC
   1.331 +  /* First make sure the handling of the `__getopt_nonoption_flags'
   1.332 +     string can work normally.  Our top argument must be in the range
   1.333 +     of the string.  */
   1.334 +  if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
   1.335 +    {
   1.336 +      /* We must extend the array.  The user plays games with us and
   1.337 +	 presents new arguments.  */
   1.338 +      char *new_str = malloc (top + 1);
   1.339 +      if (new_str == NULL)
   1.340 +	nonoption_flags_len = nonoption_flags_max_len = 0;
   1.341 +      else
   1.342 +	{
   1.343 +	  memset (__mempcpy (new_str, __getopt_nonoption_flags,
   1.344 +			     nonoption_flags_max_len),
   1.345 +		  '\0', top + 1 - nonoption_flags_max_len);
   1.346 +	  nonoption_flags_max_len = top + 1;
   1.347 +	  __getopt_nonoption_flags = new_str;
   1.348 +	}
   1.349 +    }
   1.350 +#endif
   1.351 +
   1.352 +  while (top > middle && middle > bottom)
   1.353 +    {
   1.354 +      if (top - middle > middle - bottom)
   1.355 +	{
   1.356 +	  /* Bottom segment is the short one.  */
   1.357 +	  int len = middle - bottom;
   1.358 +	  register int i;
   1.359 +
   1.360 +	  /* Swap it with the top part of the top segment.  */
   1.361 +	  for (i = 0; i < len; i++)
   1.362 +	    {
   1.363 +	      tem = argv[bottom + i];
   1.364 +	      argv[bottom + i] = argv[top - (middle - bottom) + i];
   1.365 +	      argv[top - (middle - bottom) + i] = tem;
   1.366 +	      SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
   1.367 +	    }
   1.368 +	  /* Exclude the moved bottom segment from further swapping.  */
   1.369 +	  top -= len;
   1.370 +	}
   1.371 +      else
   1.372 +	{
   1.373 +	  /* Top segment is the short one.  */
   1.374 +	  int len = top - middle;
   1.375 +	  register int i;
   1.376 +
   1.377 +	  /* Swap it with the bottom part of the bottom segment.  */
   1.378 +	  for (i = 0; i < len; i++)
   1.379 +	    {
   1.380 +	      tem = argv[bottom + i];
   1.381 +	      argv[bottom + i] = argv[middle + i];
   1.382 +	      argv[middle + i] = tem;
   1.383 +	      SWAP_FLAGS (bottom + i, middle + i);
   1.384 +	    }
   1.385 +	  /* Exclude the moved top segment from further swapping.  */
   1.386 +	  bottom += len;
   1.387 +	}
   1.388 +    }
   1.389 +
   1.390 +  /* Update records for the slots the non-options now occupy.  */
   1.391 +
   1.392 +  first_nonopt += (optind - last_nonopt);
   1.393 +  last_nonopt = optind;
   1.394 +}
   1.395 +
   1.396 +/* Initialize the internal data when the first call is made.  */
   1.397 +
   1.398 +#if defined __STDC__ && __STDC__
   1.399 +static const char *_getopt_initialize (int, char *const *, const char *);
   1.400 +#endif
   1.401 +static const char *
   1.402 +_getopt_initialize (argc, argv, optstring)
   1.403 +     int argc;
   1.404 +     char *const *argv;
   1.405 +     const char *optstring;
   1.406 +{
   1.407 +  /* Start processing options with ARGV-element 1 (since ARGV-element 0
   1.408 +     is the program name); the sequence of previously skipped
   1.409 +     non-option ARGV-elements is empty.  */
   1.410 +
   1.411 +  first_nonopt = last_nonopt = optind;
   1.412 +
   1.413 +  nextchar = NULL;
   1.414 +
   1.415 +  posixly_correct = getenv ("POSIXLY_CORRECT");
   1.416 +
   1.417 +  /* Determine how to handle the ordering of options and nonoptions.  */
   1.418 +
   1.419 +  if (optstring[0] == '-')
   1.420 +    {
   1.421 +      ordering = RETURN_IN_ORDER;
   1.422 +      ++optstring;
   1.423 +    }
   1.424 +  else if (optstring[0] == '+')
   1.425 +    {
   1.426 +      ordering = REQUIRE_ORDER;
   1.427 +      ++optstring;
   1.428 +    }
   1.429 +  else if (posixly_correct != NULL)
   1.430 +    ordering = REQUIRE_ORDER;
   1.431 +  else
   1.432 +    ordering = PERMUTE;
   1.433 +
   1.434 +#ifdef _LIBC
   1.435 +  if (posixly_correct == NULL
   1.436 +      && argc == original_argc && argv == original_argv)
   1.437 +    {
   1.438 +      if (nonoption_flags_max_len == 0)
   1.439 +	{
   1.440 +	  if (__getopt_nonoption_flags == NULL
   1.441 +	      || __getopt_nonoption_flags[0] == '\0')
   1.442 +	    nonoption_flags_max_len = -1;
   1.443 +	  else
   1.444 +	    {
   1.445 +	      const char *orig_str = __getopt_nonoption_flags;
   1.446 +	      int len = nonoption_flags_max_len = strlen (orig_str);
   1.447 +	      if (nonoption_flags_max_len < argc)
   1.448 +		nonoption_flags_max_len = argc;
   1.449 +	      __getopt_nonoption_flags =
   1.450 +		(char *) malloc (nonoption_flags_max_len);
   1.451 +	      if (__getopt_nonoption_flags == NULL)
   1.452 +		nonoption_flags_max_len = -1;
   1.453 +	      else
   1.454 +		memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
   1.455 +			'\0', nonoption_flags_max_len - len);
   1.456 +	    }
   1.457 +	}
   1.458 +      nonoption_flags_len = nonoption_flags_max_len;
   1.459 +    }
   1.460 +  else
   1.461 +    nonoption_flags_len = 0;
   1.462 +#endif
   1.463 +
   1.464 +  return optstring;
   1.465 +}
   1.466 +
   1.467 +/* Scan elements of ARGV (whose length is ARGC) for option characters
   1.468 +   given in OPTSTRING.
   1.469 +
   1.470 +   If an element of ARGV starts with '-', and is not exactly "-" or "--",
   1.471 +   then it is an option element.  The characters of this element
   1.472 +   (aside from the initial '-') are option characters.  If `getopt'
   1.473 +   is called repeatedly, it returns successively each of the option characters
   1.474 +   from each of the option elements.
   1.475 +
   1.476 +   If `getopt' finds another option character, it returns that character,
   1.477 +   updating `optind' and `nextchar' so that the next call to `getopt' can
   1.478 +   resume the scan with the following option character or ARGV-element.
   1.479 +
   1.480 +   If there are no more option characters, `getopt' returns -1.
   1.481 +   Then `optind' is the index in ARGV of the first ARGV-element
   1.482 +   that is not an option.  (The ARGV-elements have been permuted
   1.483 +   so that those that are not options now come last.)
   1.484 +
   1.485 +   OPTSTRING is a string containing the legitimate option characters.
   1.486 +   If an option character is seen that is not listed in OPTSTRING,
   1.487 +   return '?' after printing an error message.  If you set `opterr' to
   1.488 +   zero, the error message is suppressed but we still return '?'.
   1.489 +
   1.490 +   If a char in OPTSTRING is followed by a colon, that means it wants an arg,
   1.491 +   so the following text in the same ARGV-element, or the text of the following
   1.492 +   ARGV-element, is returned in `optarg'.  Two colons mean an option that
   1.493 +   wants an optional arg; if there is text in the current ARGV-element,
   1.494 +   it is returned in `optarg', otherwise `optarg' is set to zero.
   1.495 +
   1.496 +   If OPTSTRING starts with `-' or `+', it requests different methods of
   1.497 +   handling the non-option ARGV-elements.
   1.498 +   See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
   1.499 +
   1.500 +   Long-named options begin with `--' instead of `-'.
   1.501 +   Their names may be abbreviated as long as the abbreviation is unique
   1.502 +   or is an exact match for some defined option.  If they have an
   1.503 +   argument, it follows the option name in the same ARGV-element, separated
   1.504 +   from the option name by a `=', or else the in next ARGV-element.
   1.505 +   When `getopt' finds a long-named option, it returns 0 if that option's
   1.506 +   `flag' field is nonzero, the value of the option's `val' field
   1.507 +   if the `flag' field is zero.
   1.508 +
   1.509 +   The elements of ARGV aren't really const, because we permute them.
   1.510 +   But we pretend they're const in the prototype to be compatible
   1.511 +   with other systems.
   1.512 +
   1.513 +   LONGOPTS is a vector of `struct option' terminated by an
   1.514 +   element containing a name which is zero.
   1.515 +
   1.516 +   LONGIND returns the index in LONGOPT of the long-named option found.
   1.517 +   It is only valid when a long-named option has been found by the most
   1.518 +   recent call.
   1.519 +
   1.520 +   If LONG_ONLY is nonzero, '-' as well as '--' can introduce
   1.521 +   long-named options.  */
   1.522 +
   1.523 +int
   1.524 +_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
   1.525 +     int argc;
   1.526 +     char *const *argv;
   1.527 +     const char *optstring;
   1.528 +     const struct option *longopts;
   1.529 +     int *longind;
   1.530 +     int long_only;
   1.531 +{
   1.532 +  optarg = NULL;
   1.533 +
   1.534 +  if (optind == 0 || !__getopt_initialized)
   1.535 +    {
   1.536 +      if (optind == 0)
   1.537 +	optind = 1;	/* Don't scan ARGV[0], the program name.  */
   1.538 +      optstring = _getopt_initialize (argc, argv, optstring);
   1.539 +      __getopt_initialized = 1;
   1.540 +    }
   1.541 +
   1.542 +  /* Test whether ARGV[optind] points to a non-option argument.
   1.543 +     Either it does not have option syntax, or there is an environment flag
   1.544 +     from the shell indicating it is not an option.  The later information
   1.545 +     is only used when the used in the GNU libc.  */
   1.546 +#ifdef _LIBC
   1.547 +# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0'	      \
   1.548 +		      || (optind < nonoption_flags_len			      \
   1.549 +			  && __getopt_nonoption_flags[optind] == '1'))
   1.550 +#else
   1.551 +# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
   1.552 +#endif
   1.553 +
   1.554 +  if (nextchar == NULL || *nextchar == '\0')
   1.555 +    {
   1.556 +      /* Advance to the next ARGV-element.  */
   1.557 +
   1.558 +      /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
   1.559 +	 moved back by the user (who may also have changed the arguments).  */
   1.560 +      if (last_nonopt > optind)
   1.561 +	last_nonopt = optind;
   1.562 +      if (first_nonopt > optind)
   1.563 +	first_nonopt = optind;
   1.564 +
   1.565 +      if (ordering == PERMUTE)
   1.566 +	{
   1.567 +	  /* If we have just processed some options following some non-options,
   1.568 +	     exchange them so that the options come first.  */
   1.569 +
   1.570 +	  if (first_nonopt != last_nonopt && last_nonopt != optind)
   1.571 +	    exchange ((char **) argv);
   1.572 +	  else if (last_nonopt != optind)
   1.573 +	    first_nonopt = optind;
   1.574 +
   1.575 +	  /* Skip any additional non-options
   1.576 +	     and extend the range of non-options previously skipped.  */
   1.577 +
   1.578 +	  while (optind < argc && NONOPTION_P)
   1.579 +	    optind++;
   1.580 +	  last_nonopt = optind;
   1.581 +	}
   1.582 +
   1.583 +      /* The special ARGV-element `--' means premature end of options.
   1.584 +	 Skip it like a null option,
   1.585 +	 then exchange with previous non-options as if it were an option,
   1.586 +	 then skip everything else like a non-option.  */
   1.587 +
   1.588 +      if (optind != argc && !strcmp (argv[optind], "--"))
   1.589 +	{
   1.590 +	  optind++;
   1.591 +
   1.592 +	  if (first_nonopt != last_nonopt && last_nonopt != optind)
   1.593 +	    exchange ((char **) argv);
   1.594 +	  else if (first_nonopt == last_nonopt)
   1.595 +	    first_nonopt = optind;
   1.596 +	  last_nonopt = argc;
   1.597 +
   1.598 +	  optind = argc;
   1.599 +	}
   1.600 +
   1.601 +      /* If we have done all the ARGV-elements, stop the scan
   1.602 +	 and back over any non-options that we skipped and permuted.  */
   1.603 +
   1.604 +      if (optind == argc)
   1.605 +	{
   1.606 +	  /* Set the next-arg-index to point at the non-options
   1.607 +	     that we previously skipped, so the caller will digest them.  */
   1.608 +	  if (first_nonopt != last_nonopt)
   1.609 +	    optind = first_nonopt;
   1.610 +	  return -1;
   1.611 +	}
   1.612 +
   1.613 +      /* If we have come to a non-option and did not permute it,
   1.614 +	 either stop the scan or describe it to the caller and pass it by.  */
   1.615 +
   1.616 +      if (NONOPTION_P)
   1.617 +	{
   1.618 +	  if (ordering == REQUIRE_ORDER)
   1.619 +	    return -1;
   1.620 +	  optarg = argv[optind++];
   1.621 +	  return 1;
   1.622 +	}
   1.623 +
   1.624 +      /* We have found another option-ARGV-element.
   1.625 +	 Skip the initial punctuation.  */
   1.626 +
   1.627 +      nextchar = (argv[optind] + 1
   1.628 +		  + (longopts != NULL && argv[optind][1] == '-'));
   1.629 +    }
   1.630 +
   1.631 +  /* Decode the current option-ARGV-element.  */
   1.632 +
   1.633 +  /* Check whether the ARGV-element is a long option.
   1.634 +
   1.635 +     If long_only and the ARGV-element has the form "-f", where f is
   1.636 +     a valid short option, don't consider it an abbreviated form of
   1.637 +     a long option that starts with f.  Otherwise there would be no
   1.638 +     way to give the -f short option.
   1.639 +
   1.640 +     On the other hand, if there's a long option "fubar" and
   1.641 +     the ARGV-element is "-fu", do consider that an abbreviation of
   1.642 +     the long option, just like "--fu", and not "-f" with arg "u".
   1.643 +
   1.644 +     This distinction seems to be the most useful approach.  */
   1.645 +
   1.646 +  if (longopts != NULL
   1.647 +      && (argv[optind][1] == '-'
   1.648 +	  || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
   1.649 +    {
   1.650 +      char *nameend;
   1.651 +      const struct option *p;
   1.652 +      const struct option *pfound = NULL;
   1.653 +      int exact = 0;
   1.654 +      int ambig = 0;
   1.655 +      int indfound = -1;
   1.656 +      int option_index;
   1.657 +
   1.658 +      for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
   1.659 +	/* Do nothing.  */ ;
   1.660 +
   1.661 +      /* Test all long options for either exact match
   1.662 +	 or abbreviated matches.  */
   1.663 +      for (p = longopts, option_index = 0; p->name; p++, option_index++)
   1.664 +	if (!strncmp (p->name, nextchar, nameend - nextchar))
   1.665 +	  {
   1.666 +	    if ((unsigned int) (nameend - nextchar)
   1.667 +		== (unsigned int) strlen (p->name))
   1.668 +	      {
   1.669 +		/* Exact match found.  */
   1.670 +		pfound = p;
   1.671 +		indfound = option_index;
   1.672 +		exact = 1;
   1.673 +		break;
   1.674 +	      }
   1.675 +	    else if (pfound == NULL)
   1.676 +	      {
   1.677 +		/* First nonexact match found.  */
   1.678 +		pfound = p;
   1.679 +		indfound = option_index;
   1.680 +	      }
   1.681 +	    else
   1.682 +	      /* Second or later nonexact match found.  */
   1.683 +	      ambig = 1;
   1.684 +	  }
   1.685 +
   1.686 +      if (ambig && !exact)
   1.687 +	{
   1.688 +	  if (opterr)
   1.689 +	    fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
   1.690 +		     argv[0], argv[optind]);
   1.691 +	  nextchar += strlen (nextchar);
   1.692 +	  optind++;
   1.693 +	  optopt = 0;
   1.694 +	  return '?';
   1.695 +	}
   1.696 +
   1.697 +      if (pfound != NULL)
   1.698 +	{
   1.699 +	  option_index = indfound;
   1.700 +	  optind++;
   1.701 +	  if (*nameend)
   1.702 +	    {
   1.703 +	      /* Don't test has_arg with >, because some C compilers don't
   1.704 +		 allow it to be used on enums.  */
   1.705 +	      if (pfound->has_arg)
   1.706 +		optarg = nameend + 1;
   1.707 +	      else
   1.708 +		{
   1.709 +		  if (opterr)
   1.710 +		    {
   1.711 +		      if (argv[optind - 1][1] == '-')
   1.712 +			/* --option */
   1.713 +			fprintf (stderr,
   1.714 +				 _("%s: option `--%s' doesn't allow an argument\n"),
   1.715 +				 argv[0], pfound->name);
   1.716 +		      else
   1.717 +			/* +option or -option */
   1.718 +			fprintf (stderr,
   1.719 +				 _("%s: option `%c%s' doesn't allow an argument\n"),
   1.720 +				 argv[0], argv[optind - 1][0], pfound->name);
   1.721 +
   1.722 +		      nextchar += strlen (nextchar);
   1.723 +
   1.724 +		      optopt = pfound->val;
   1.725 +		      return '?';
   1.726 +		    }
   1.727 +		}
   1.728 +	    }
   1.729 +	  else if (pfound->has_arg == 1)
   1.730 +	    {
   1.731 +	      if (optind < argc)
   1.732 +		optarg = argv[optind++];
   1.733 +	      else
   1.734 +		{
   1.735 +		  if (opterr)
   1.736 +		    fprintf (stderr,
   1.737 +			   _("%s: option `%s' requires an argument\n"),
   1.738 +			   argv[0], argv[optind - 1]);
   1.739 +		  nextchar += strlen (nextchar);
   1.740 +		  optopt = pfound->val;
   1.741 +		  return optstring[0] == ':' ? ':' : '?';
   1.742 +		}
   1.743 +	    }
   1.744 +	  nextchar += strlen (nextchar);
   1.745 +	  if (longind != NULL)
   1.746 +	    *longind = option_index;
   1.747 +	  if (pfound->flag)
   1.748 +	    {
   1.749 +	      *(pfound->flag) = pfound->val;
   1.750 +	      return 0;
   1.751 +	    }
   1.752 +	  return pfound->val;
   1.753 +	}
   1.754 +
   1.755 +      /* Can't find it as a long option.  If this is not getopt_long_only,
   1.756 +	 or the option starts with '--' or is not a valid short
   1.757 +	 option, then it's an error.
   1.758 +	 Otherwise interpret it as a short option.  */
   1.759 +      if (!long_only || argv[optind][1] == '-'
   1.760 +	  || my_index (optstring, *nextchar) == NULL)
   1.761 +	{
   1.762 +	  if (opterr)
   1.763 +	    {
   1.764 +	      if (argv[optind][1] == '-')
   1.765 +		/* --option */
   1.766 +		fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
   1.767 +			 argv[0], nextchar);
   1.768 +	      else
   1.769 +		/* +option or -option */
   1.770 +		fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
   1.771 +			 argv[0], argv[optind][0], nextchar);
   1.772 +	    }
   1.773 +	  nextchar = (char *) "";
   1.774 +	  optind++;
   1.775 +	  optopt = 0;
   1.776 +	  return '?';
   1.777 +	}
   1.778 +    }
   1.779 +
   1.780 +  /* Look at and handle the next short option-character.  */
   1.781 +
   1.782 +  {
   1.783 +    char c = *nextchar++;
   1.784 +    char *temp = my_index (optstring, c);
   1.785 +
   1.786 +    /* Increment `optind' when we start to process its last character.  */
   1.787 +    if (*nextchar == '\0')
   1.788 +      ++optind;
   1.789 +
   1.790 +    if (temp == NULL || c == ':')
   1.791 +      {
   1.792 +	if (opterr)
   1.793 +	  {
   1.794 +	    if (posixly_correct)
   1.795 +	      /* 1003.2 specifies the format of this message.  */
   1.796 +	      fprintf (stderr, _("%s: illegal option -- %c\n"),
   1.797 +		       argv[0], c);
   1.798 +	    else
   1.799 +	      fprintf (stderr, _("%s: invalid option -- %c\n"),
   1.800 +		       argv[0], c);
   1.801 +	  }
   1.802 +	optopt = c;
   1.803 +	return '?';
   1.804 +      }
   1.805 +    /* Convenience. Treat POSIX -W foo same as long option --foo */
   1.806 +    if (temp[0] == 'W' && temp[1] == ';')
   1.807 +      {
   1.808 +	char *nameend;
   1.809 +	const struct option *p;
   1.810 +	const struct option *pfound = NULL;
   1.811 +	int exact = 0;
   1.812 +	int ambig = 0;
   1.813 +	int indfound = 0;
   1.814 +	int option_index;
   1.815 +
   1.816 +	/* This is an option that requires an argument.  */
   1.817 +	if (*nextchar != '\0')
   1.818 +	  {
   1.819 +	    optarg = nextchar;
   1.820 +	    /* If we end this ARGV-element by taking the rest as an arg,
   1.821 +	       we must advance to the next element now.  */
   1.822 +	    optind++;
   1.823 +	  }
   1.824 +	else if (optind == argc)
   1.825 +	  {
   1.826 +	    if (opterr)
   1.827 +	      {
   1.828 +		/* 1003.2 specifies the format of this message.  */
   1.829 +		fprintf (stderr, _("%s: option requires an argument -- %c\n"),
   1.830 +			 argv[0], c);
   1.831 +	      }
   1.832 +	    optopt = c;
   1.833 +	    if (optstring[0] == ':')
   1.834 +	      c = ':';
   1.835 +	    else
   1.836 +	      c = '?';
   1.837 +	    return c;
   1.838 +	  }
   1.839 +	else
   1.840 +	  /* We already incremented `optind' once;
   1.841 +	     increment it again when taking next ARGV-elt as argument.  */
   1.842 +	  optarg = argv[optind++];
   1.843 +
   1.844 +	/* optarg is now the argument, see if it's in the
   1.845 +	   table of longopts.  */
   1.846 +
   1.847 +	for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
   1.848 +	  /* Do nothing.  */ ;
   1.849 +
   1.850 +	/* Test all long options for either exact match
   1.851 +	   or abbreviated matches.  */
   1.852 +	for (p = longopts, option_index = 0; p->name; p++, option_index++)
   1.853 +	  if (!strncmp (p->name, nextchar, nameend - nextchar))
   1.854 +	    {
   1.855 +	      if ((unsigned int) (nameend - nextchar) == strlen (p->name))
   1.856 +		{
   1.857 +		  /* Exact match found.  */
   1.858 +		  pfound = p;
   1.859 +		  indfound = option_index;
   1.860 +		  exact = 1;
   1.861 +		  break;
   1.862 +		}
   1.863 +	      else if (pfound == NULL)
   1.864 +		{
   1.865 +		  /* First nonexact match found.  */
   1.866 +		  pfound = p;
   1.867 +		  indfound = option_index;
   1.868 +		}
   1.869 +	      else
   1.870 +		/* Second or later nonexact match found.  */
   1.871 +		ambig = 1;
   1.872 +	    }
   1.873 +	if (ambig && !exact)
   1.874 +	  {
   1.875 +	    if (opterr)
   1.876 +	      fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
   1.877 +		       argv[0], argv[optind]);
   1.878 +	    nextchar += strlen (nextchar);
   1.879 +	    optind++;
   1.880 +	    return '?';
   1.881 +	  }
   1.882 +	if (pfound != NULL)
   1.883 +	  {
   1.884 +	    option_index = indfound;
   1.885 +	    if (*nameend)
   1.886 +	      {
   1.887 +		/* Don't test has_arg with >, because some C compilers don't
   1.888 +		   allow it to be used on enums.  */
   1.889 +		if (pfound->has_arg)
   1.890 +		  optarg = nameend + 1;
   1.891 +		else
   1.892 +		  {
   1.893 +		    if (opterr)
   1.894 +		      fprintf (stderr, _("\
   1.895 +%s: option `-W %s' doesn't allow an argument\n"),
   1.896 +			       argv[0], pfound->name);
   1.897 +
   1.898 +		    nextchar += strlen (nextchar);
   1.899 +		    return '?';
   1.900 +		  }
   1.901 +	      }
   1.902 +	    else if (pfound->has_arg == 1)
   1.903 +	      {
   1.904 +		if (optind < argc)
   1.905 +		  optarg = argv[optind++];
   1.906 +		else
   1.907 +		  {
   1.908 +		    if (opterr)
   1.909 +		      fprintf (stderr,
   1.910 +			       _("%s: option `%s' requires an argument\n"),
   1.911 +			       argv[0], argv[optind - 1]);
   1.912 +		    nextchar += strlen (nextchar);
   1.913 +		    return optstring[0] == ':' ? ':' : '?';
   1.914 +		  }
   1.915 +	      }
   1.916 +	    nextchar += strlen (nextchar);
   1.917 +	    if (longind != NULL)
   1.918 +	      *longind = option_index;
   1.919 +	    if (pfound->flag)
   1.920 +	      {
   1.921 +		*(pfound->flag) = pfound->val;
   1.922 +		return 0;
   1.923 +	      }
   1.924 +	    return pfound->val;
   1.925 +	  }
   1.926 +	  nextchar = NULL;
   1.927 +	  return 'W';	/* Let the application handle it.   */
   1.928 +      }
   1.929 +    if (temp[1] == ':')
   1.930 +      {
   1.931 +	if (temp[2] == ':')
   1.932 +	  {
   1.933 +	    /* This is an option that accepts an argument optionally.  */
   1.934 +	    if (*nextchar != '\0')
   1.935 +	      {
   1.936 +		optarg = nextchar;
   1.937 +		optind++;
   1.938 +	      }
   1.939 +	    else
   1.940 +	      optarg = NULL;
   1.941 +	    nextchar = NULL;
   1.942 +	  }
   1.943 +	else
   1.944 +	  {
   1.945 +	    /* This is an option that requires an argument.  */
   1.946 +	    if (*nextchar != '\0')
   1.947 +	      {
   1.948 +		optarg = nextchar;
   1.949 +		/* If we end this ARGV-element by taking the rest as an arg,
   1.950 +		   we must advance to the next element now.  */
   1.951 +		optind++;
   1.952 +	      }
   1.953 +	    else if (optind == argc)
   1.954 +	      {
   1.955 +		if (opterr)
   1.956 +		  {
   1.957 +		    /* 1003.2 specifies the format of this message.  */
   1.958 +		    fprintf (stderr,
   1.959 +			   _("%s: option requires an argument -- %c\n"),
   1.960 +			   argv[0], c);
   1.961 +		  }
   1.962 +		optopt = c;
   1.963 +		if (optstring[0] == ':')
   1.964 +		  c = ':';
   1.965 +		else
   1.966 +		  c = '?';
   1.967 +	      }
   1.968 +	    else
   1.969 +	      /* We already incremented `optind' once;
   1.970 +		 increment it again when taking next ARGV-elt as argument.  */
   1.971 +	      optarg = argv[optind++];
   1.972 +	    nextchar = NULL;
   1.973 +	  }
   1.974 +      }
   1.975 +    return c;
   1.976 +  }
   1.977 +}
   1.978 +
   1.979 +int
   1.980 +getopt (argc, argv, optstring)
   1.981 +     int argc;
   1.982 +     char *const *argv;
   1.983 +     const char *optstring;
   1.984 +{
   1.985 +  return _getopt_internal (argc, argv, optstring,
   1.986 +			   (const struct option *) 0,
   1.987 +			   (int *) 0,
   1.988 +			   0);
   1.989 +}
   1.990 +
   1.991 +#endif	/* Not ELIDE_CODE.  */
   1.992 +
   1.993 +#ifdef TEST
   1.994 +
   1.995 +/* Compile with -DTEST to make an executable for use in testing
   1.996 +   the above definition of `getopt'.  */
   1.997 +
   1.998 +int
   1.999 +main (argc, argv)
  1.1000 +     int argc;
  1.1001 +     char **argv;
  1.1002 +{
  1.1003 +  int c;
  1.1004 +  int digit_optind = 0;
  1.1005 +
  1.1006 +  while (1)
  1.1007 +    {
  1.1008 +      int this_option_optind = optind ? optind : 1;
  1.1009 +
  1.1010 +      c = getopt (argc, argv, "abc:d:0123456789");
  1.1011 +      if (c == -1)
  1.1012 +	break;
  1.1013 +
  1.1014 +      switch (c)
  1.1015 +	{
  1.1016 +	case '0':
  1.1017 +	case '1':
  1.1018 +	case '2':
  1.1019 +	case '3':
  1.1020 +	case '4':
  1.1021 +	case '5':
  1.1022 +	case '6':
  1.1023 +	case '7':
  1.1024 +	case '8':
  1.1025 +	case '9':
  1.1026 +	  if (digit_optind != 0 && digit_optind != this_option_optind)
  1.1027 +	    printf ("digits occur in two different argv-elements.\n");
  1.1028 +	  digit_optind = this_option_optind;
  1.1029 +	  printf ("option %c\n", c);
  1.1030 +	  break;
  1.1031 +
  1.1032 +	case 'a':
  1.1033 +	  printf ("option a\n");
  1.1034 +	  break;
  1.1035 +
  1.1036 +	case 'b':
  1.1037 +	  printf ("option b\n");
  1.1038 +	  break;
  1.1039 +
  1.1040 +	case 'c':
  1.1041 +	  printf ("option c with value `%s'\n", optarg);
  1.1042 +	  break;
  1.1043 +
  1.1044 +	case '?':
  1.1045 +	  break;
  1.1046 +
  1.1047 +	default:
  1.1048 +	  printf ("?? getopt returned character code 0%o ??\n", c);
  1.1049 +	}
  1.1050 +    }
  1.1051 +
  1.1052 +  if (optind < argc)
  1.1053 +    {
  1.1054 +      printf ("non-option ARGV-elements: ");
  1.1055 +      while (optind < argc)
  1.1056 +	printf ("%s ", argv[optind++]);
  1.1057 +      printf ("\n");
  1.1058 +    }
  1.1059 +
  1.1060 +  exit (0);
  1.1061 +}
  1.1062 +
  1.1063 +#endif /* TEST */