win: Compile getopt as C++ and wrap in crashpad namespace

third_party/getopt/getopt.c

Index: third_party/getopt/getopt.c
diff --git a/third_party/getopt/getopt.c b/third_party/getopt/getopt.c
deleted file mode 100644
index d63492f17f01eb7cd90b3b18f7b48360445e1a6d..0000000000000000000000000000000000000000
--- a/third_party/getopt/getopt.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/*
-Copyright (C) 1997 Gregory Pietsch
-
-[These files] are hereby placed in the public domain without restrictions. Just
-give the author credit, don't claim you wrote it or prevent anyone else from
-using it.
-*/
-
-/****************************************************************************
-
-getopt.c - Read command line options
-
-AUTHOR: Gregory Pietsch
-CREATED Fri Jan 10 21:13:05 1997
-
-DESCRIPTION:
-
-The getopt() function parses the command line arguments.  Its arguments argc
-and argv are the argument count and array as passed to the main() function
-on program invocation.  The argument optstring is a list of available option
-characters.  If such a character is followed by a colon (`:'), the option
-takes an argument, which is placed in optarg.  If such a character is
-followed by two colons, the option takes an optional argument, which is
-placed in optarg.  If the option does not take an argument, optarg is NULL.
-
-The external variable optind is the index of the next array element of argv
-to be processed; it communicates from one call to the next which element to
-process.
-
-The getopt_long() function works like getopt() except that it also accepts
-long options started by two dashes `--'.  If these take values, it is either
-in the form
-
---arg=value
-
- or
-
---arg value
-
-It takes the additional arguments longopts which is a pointer to the first
-element of an array of type GETOPT_LONG_OPTION_T.  The last element of the
-array has to be filled with NULL for the name field.
-
-The longind pointer points to the index of the current long option relative
-to longopts if it is non-NULL.
-
-The getopt() function returns the option character if the option was found
-successfully, `:' if there was a missing parameter for one of the options,
-`?' for an unknown option character, and EOF for the end of the option list.
-
-The getopt_long() function's return value is described in the header file.
-
-The function getopt_long_only() is identical to getopt_long(), except that a
-plus sign `+' can introduce long options as well as `--'.
-
-The following describes how to deal with options that follow non-option
-argv-elements.
-
-If the caller did not specify anything, the default is REQUIRE_ORDER if the
-environment variable POSIXLY_CORRECT is defined, PERMUTE otherwise.
-
-REQUIRE_ORDER means don't recognize them as options; stop option processing
-when the first non-option is seen.  This is what Unix does.  This mode of
-operation is selected by either setting the environment variable
-POSIXLY_CORRECT, or using `+' as the first character of the optstring
-parameter.
-
-PERMUTE is the default.  We permute the contents of ARGV as we scan, so that
-eventually all the non-options are at the end.  This allows options to be
-given in any order, even with programs that were not written to expect this.
-
-RETURN_IN_ORDER is an option available to programs that were written to
-expect options and other argv-elements in any order and that care about the
-ordering of the two.  We describe each non-option argv-element as if it were
-the argument of an option with character code 1.  Using `-' as the first
-character of the optstring parameter selects this mode of operation.
-
-The special argument `--' forces an end of option-scanning regardless of the
-value of ordering.  In the case of RETURN_IN_ORDER, only `--' can cause
-getopt() and friends to return EOF with optind != argc.
-
-COPYRIGHT NOTICE AND DISCLAIMER:
-
-Copyright (C) 1997 Gregory Pietsch
-
-This file and the accompanying getopt.h header file are hereby placed in the
-public domain without restrictions.  Just give the author credit, don't
-claim you wrote it or prevent anyone else from using it.
-
-Gregory Pietsch's current e-mail address:
-gpietsch@comcast.net
-****************************************************************************/
-
-/* include files */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#ifndef GETOPT_H
-#include "getopt.h"
-#endif
-
-/* macros */
-
-/* types */
-typedef enum GETOPT_ORDERING_T
-{
-  PERMUTE,
-  RETURN_IN_ORDER,
-  REQUIRE_ORDER
-} GETOPT_ORDERING_T;
-
-/* globally-defined variables */
-char *optarg = NULL;
-int optind = 0;
-int opterr = 1;
-int optopt = '?';
-
-/* functions */
-
-/* reverse_argv_elements:  reverses num elements starting at argv */
-static void
-reverse_argv_elements (char **argv, int num)
-{
-  int i;
-  char *tmp;
-
-  for (i = 0; i < (num >> 1); i++)
-    {
-      tmp = argv[i];
-      argv[i] = argv[num - i - 1];
-      argv[num - i - 1] = tmp;
-    }
-}
-
-/* permute: swap two blocks of argv-elements given their lengths */
-static void
-permute (char **argv, int len1, int len2)
-{
-  reverse_argv_elements (argv, len1);
-  reverse_argv_elements (argv, len1 + len2);
-  reverse_argv_elements (argv, len2);
-}
-
-/* is_option: is this argv-element an option or the end of the option list? */
-static int
-is_option (char *argv_element, int only)
-{
-  return ((argv_element == NULL)
-          || (argv_element[0] == '-') || (only && argv_element[0] == '+'));
-}
-
-/* getopt_internal:  the function that does all the dirty work */
-static int
-getopt_internal (int argc, char **argv, char *shortopts,
-                 GETOPT_LONG_OPTION_T * longopts, int *longind, int only)
-{
-  GETOPT_ORDERING_T ordering = PERMUTE;
-  static size_t optwhere = 0;
-  size_t permute_from = 0;
-  int num_nonopts = 0;
-  int optindex = 0;
-  size_t match_chars = 0;
-  char *possible_arg = NULL;
-  int longopt_match = -1;
-  int has_arg = -1;
-  char *cp = NULL;
-  int arg_next = 0;
-
-  /* first, deal with silly parameters and easy stuff */
-  if (argc == 0 || argv == NULL || (shortopts == NULL && longopts == NULL))
-    return (optopt = '?');
-  if (optind >= argc || argv[optind] == NULL)
-    return EOF;
-  if (strcmp (argv[optind], "--") == 0)
-    {
-      optind++;
-      return EOF;
-    }
-  /* if this is our first time through */
-  if (optind == 0) {
-    optind = 1;
-    optwhere = 1;
-  }
-
-  /* define ordering */
-  if (shortopts != NULL && (*shortopts == '-' || *shortopts == '+'))
-    {
-      ordering = (*shortopts == '-') ? RETURN_IN_ORDER : REQUIRE_ORDER;
-      shortopts++;
-    }
-  else
-    ordering = (getenv ("POSIXLY_CORRECT") != NULL) ? REQUIRE_ORDER : PERMUTE;
-
-  /*
-   * based on ordering, find our next option, if we're at the beginning of
-   * one
-   */
-  if (optwhere == 1)
-    {
-      switch (ordering)
-        {
-        case PERMUTE:
-          permute_from = optind;
-          num_nonopts = 0;
-          while (!is_option (argv[optind], only))
-            {
-              optind++;
-              num_nonopts++;
-            }
-          if (argv[optind] == NULL)
-            {
-              /* no more options */
-              optind = (int)permute_from;
-              return EOF;
-            }
-          else if (strcmp (argv[optind], "--") == 0)
-            {
-              /* no more options, but have to get `--' out of the way */
-              permute (argv + permute_from, num_nonopts, 1);
-              optind = (int)(permute_from + 1);
-              return EOF;
-            }
-          break;
-        case RETURN_IN_ORDER:
-          if (!is_option (argv[optind], only))
-            {
-              optarg = argv[optind++];
-              return (optopt = 1);
-            }
-          break;
-        case REQUIRE_ORDER:
-          if (!is_option (argv[optind], only))
-            return EOF;
-          break;
-        }
-    }
-  /* we've got an option, so parse it */
-
-  /* first, is it a long option? */
-  if (longopts != NULL
-      && (memcmp (argv[optind], "--", 2) == 0
-          || (only && argv[optind][0] == '+')) && optwhere == 1)
-    {
-      /* handle long options */
-      if (memcmp (argv[optind], "--", 2) == 0)
-        optwhere = 2;
-      longopt_match = -1;
-      possible_arg = strchr (argv[optind] + optwhere, '=');
-      if (possible_arg == NULL)
-        {
-          /* no =, so next argv might be arg */
-          match_chars = strlen (argv[optind]);
-          possible_arg = argv[optind] + match_chars;
-          match_chars = match_chars - optwhere;
-        }
-      else
-        match_chars = (possible_arg - argv[optind]) - optwhere;
-      for (optindex = 0; longopts[optindex].name != NULL; optindex++)
-        {
-          if (memcmp (argv[optind] + optwhere,
-                      longopts[optindex].name, match_chars) == 0)
-            {
-              /* do we have an exact match? */
-              if (match_chars == strlen (longopts[optindex].name))
-                {
-                  longopt_match = optindex;
-                  break;
-                }
-              /* do any characters match? */
-              else
-                {
-                  if (longopt_match < 0)
-                    longopt_match = optindex;
-                  else
-                    {
-                      /* we have ambiguous options */
-                      if (opterr)
-                        fprintf (stderr, "%s: option `%s' is ambiguous "
-                                 "(could be `--%s' or `--%s')\n",
-                                 argv[0],
-                                 argv[optind],
-                                 longopts[longopt_match].name,
-                                 longopts[optindex].name);
-                      return (optopt = '?');
-                    }
-                }
-            }
-        }
-      if (longopt_match >= 0)
-        has_arg = longopts[longopt_match].has_arg;
-    }
-  /* if we didn't find a long option, is it a short option? */
-  if (longopt_match < 0 && shortopts != NULL)
-    {
-      cp = strchr (shortopts, argv[optind][optwhere]);
-      if (cp == NULL)
-        {
-          /* couldn't find option in shortopts */
-          if (opterr)
-            fprintf (stderr,
-                     "%s: invalid option -- `-%c'\n",
-                     argv[0], argv[optind][optwhere]);
-          optwhere++;
-          if (argv[optind][optwhere] == '\0')
-            {
-              optind++;
-              optwhere = 1;
-            }
-          return (optopt = '?');
-        }
-      has_arg = ((cp[1] == ':')
-                 ? ((cp[2] == ':') ? OPTIONAL_ARG : required_argument) : no_argument);
-      possible_arg = argv[optind] + optwhere + 1;
-      optopt = *cp;
-    }
-  /* get argument and reset optwhere */
-  arg_next = 0;
-  switch (has_arg)
-    {
-    case OPTIONAL_ARG:
-      if (*possible_arg == '=')
-        possible_arg++;
-      if (*possible_arg != '\0')
-        {
-          optarg = possible_arg;
-          optwhere = 1;
-        }
-      else
-        optarg = NULL;
-      break;
-    case required_argument:
-      if (*possible_arg == '=')
-        possible_arg++;
-      if (*possible_arg != '\0')
-        {
-          optarg = possible_arg;
-          optwhere = 1;
-        }
-      else if (optind + 1 >= argc)
-        {
-          if (opterr)
-            {
-              fprintf (stderr, "%s: argument required for option `", argv[0]);
-              if (longopt_match >= 0)
-                fprintf (stderr, "--%s'\n", longopts[longopt_match].name);
-              else
-                fprintf (stderr, "-%c'\n", *cp);
-            }
-          optind++;
-          return (optopt = ':');
-        }
-      else
-        {
-          optarg = argv[optind + 1];
-          arg_next = 1;
-          optwhere = 1;
-        }
-      break;
-    case no_argument:
-      if (longopt_match < 0)
-        {
-          optwhere++;
-          if (argv[optind][optwhere] == '\0')
-            optwhere = 1;
-        }
-      else
-        optwhere = 1;
-      optarg = NULL;
-      break;
-    }
-
-  /* do we have to permute or otherwise modify optind? */
-  if (ordering == PERMUTE && optwhere == 1 && num_nonopts != 0)
-    {
-      permute (argv + permute_from, num_nonopts, 1 + arg_next);
-      optind = (int)(permute_from + 1 + arg_next);
-    }
-  else if (optwhere == 1)
-    optind = optind + 1 + arg_next;
-
-  /* finally return */
-  if (longopt_match >= 0)
-    {
-      if (longind != NULL)
-        *longind = longopt_match;
-      if (longopts[longopt_match].flag != NULL)
-        {
-          *(longopts[longopt_match].flag) = longopts[longopt_match].val;
-          return 0;
-        }
-      else
-        return longopts[longopt_match].val;
-    }
-  else
-    return optopt;
-}
-
-int
-getopt (int argc, char **argv, char *optstring)
-{
-  return getopt_internal (argc, argv, optstring, NULL, NULL, 0);
-}
-
-int
-getopt_long (int argc, char **argv, const char *shortopts,
-             const GETOPT_LONG_OPTION_T * longopts, int *longind)
-{
-  return getopt_internal (argc, argv, (char*)shortopts, (GETOPT_LONG_OPTION_T*)longopts, longind, 0);
-}
-
-int
-getopt_long_only (int argc, char **argv, const char *shortopts,
-                  const GETOPT_LONG_OPTION_T * longopts, int *longind)
-{
-  return getopt_internal (argc, argv, (char*)shortopts, (GETOPT_LONG_OPTION_T*)longopts, longind, 1);
-}
-
-/* end of file GETOPT.C */