mirror of
https://github.com/open-simh/simtools.git
synced 2026-02-16 04:42:42 +00:00
Added windows support for libvhd and vhd-util. Includes bug fixes as well. See the README for details.
507 lines
9.8 KiB
C
507 lines
9.8 KiB
C
/* This is GNU's getopt.c */
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char *optarg;
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int optind = 1;
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int __getopt_initialized;
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static char *nextchar;
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int opterr = 1;
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int optopt = '?';
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static enum
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{
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REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
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} ordering;
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static char *posixly_correct = 0;
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#include <string.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <stdlib.h>
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#define _(x) x
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static char *
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my_index (str, chr)
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const char *str;
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int chr;
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{
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while (*str)
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{
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if (*str == chr)
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return (char *) str;
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str++;
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}
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return 0;
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}
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static int first_nonopt;
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static int last_nonopt;
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# define SWAP_FLAGS(ch1, ch2)
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#if defined __STDC__ && __STDC__
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static void exchange (char **);
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#endif
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static void
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exchange (argv)
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char **argv;
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{
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int bottom = first_nonopt;
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int middle = last_nonopt;
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int top = optind;
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char *tem;
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while (top > middle && middle > bottom)
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{
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if (top - middle > middle - bottom)
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{
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int len = middle - bottom;
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register int i;
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for (i = 0; i < len; i++)
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{
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tem = argv[bottom + i];
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argv[bottom + i] = argv[top - (middle - bottom) + i];
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argv[top - (middle - bottom) + i] = tem;
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SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
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}
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top -= len;
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}
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else
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{
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int len = top - middle;
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register int i;
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for (i = 0; i < len; i++)
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{
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tem = argv[bottom + i];
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argv[bottom + i] = argv[middle + i];
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argv[middle + i] = tem;
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SWAP_FLAGS (bottom + i, middle + i);
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}
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bottom += len;
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}
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}
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first_nonopt += (optind - last_nonopt);
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last_nonopt = optind;
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}
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#if defined __STDC__ && __STDC__
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static const char *_getopt_initialize (int, char *const *, const char *);
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#endif
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static const char *
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_getopt_initialize (argc, argv, optstring)
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int argc;
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char *const *argv;
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const char *optstring;
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{
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first_nonopt = last_nonopt = optind;
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nextchar = NULL;
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if (optstring[0] == '-')
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{
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ordering = RETURN_IN_ORDER;
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++optstring;
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}
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else if (optstring[0] == '+')
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{
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ordering = REQUIRE_ORDER;
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++optstring;
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}
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else if (posixly_correct != NULL)
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ordering = REQUIRE_ORDER;
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else
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ordering = PERMUTE;
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return optstring;
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}
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int
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_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
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int argc;
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char *const *argv;
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const char *optstring;
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const struct option *longopts;
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int *longind;
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int long_only;
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{
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int print_errors = opterr;
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if (optstring[0] == ':')
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print_errors = 0;
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optarg = NULL;
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if (optind == 0 || !__getopt_initialized)
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{
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if (optind == 0)
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optind = 1; /* Don't scan ARGV[0], the program name. */
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optstring = _getopt_initialize (argc, argv, optstring);
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__getopt_initialized = 1;
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}
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# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
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if (nextchar == NULL || *nextchar == '\0')
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{
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if (last_nonopt > optind)
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last_nonopt = optind;
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if (first_nonopt > optind)
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first_nonopt = optind;
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if (ordering == PERMUTE)
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{
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if (first_nonopt != last_nonopt && last_nonopt != optind)
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exchange ((char **) argv);
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else if (last_nonopt != optind)
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first_nonopt = optind;
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while (optind < argc && NONOPTION_P)
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optind++;
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last_nonopt = optind;
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}
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if (optind != argc && !strcmp (argv[optind], "--"))
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{
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optind++;
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if (first_nonopt != last_nonopt && last_nonopt != optind)
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exchange ((char **) argv);
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else if (first_nonopt == last_nonopt)
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first_nonopt = optind;
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last_nonopt = argc;
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optind = argc;
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}
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if (optind == argc)
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{
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if (first_nonopt != last_nonopt)
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optind = first_nonopt;
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return -1;
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}
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if (NONOPTION_P)
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{
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if (ordering == REQUIRE_ORDER)
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return -1;
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optarg = argv[optind++];
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return 1;
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}
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nextchar = (argv[optind] + 1
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+ (longopts != NULL && argv[optind][1] == '-'));
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}
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if (longopts != NULL
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&& (argv[optind][1] == '-'
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|| (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
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{
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char *nameend;
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const struct option *p;
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const struct option *pfound = NULL;
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int exact = 0;
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int ambig = 0;
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int indfound = -1;
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int option_index;
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for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
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/* Do nothing. */ ;
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for (p = longopts, option_index = 0; p->name; p++, option_index++)
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if (!strncmp (p->name, nextchar, nameend - nextchar))
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{
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if ((unsigned int) (nameend - nextchar)
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== (unsigned int) strlen (p->name))
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{
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pfound = p;
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indfound = option_index;
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exact = 1;
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break;
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}
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else if (pfound == NULL)
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{
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pfound = p;
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indfound = option_index;
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}
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else
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ambig = 1;
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}
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if (ambig && !exact)
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{
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if (print_errors)
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fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
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argv[0], argv[optind]);
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nextchar += strlen (nextchar);
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optind++;
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optopt = 0;
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return '?';
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}
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if (pfound != NULL)
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{
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option_index = indfound;
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optind++;
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if (*nameend)
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{
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if (pfound->has_arg)
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optarg = nameend + 1;
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else
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{
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if (print_errors)
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{
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if (argv[optind - 1][1] == '-')
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fprintf (stderr,
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_("%s: option `--%s' doesn't allow an argument\n"),
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argv[0], pfound->name);
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else
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fprintf (stderr,
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_("%s: option `%c%s' doesn't allow an argument\n"),
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argv[0], argv[optind - 1][0], pfound->name);
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}
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nextchar += strlen (nextchar);
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optopt = pfound->val;
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return '?';
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}
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}
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else if (pfound->has_arg == 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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{
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if (print_errors)
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fprintf (stderr,
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_("%s: option `%s' requires an argument\n"),
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argv[0], argv[optind - 1]);
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nextchar += strlen (nextchar);
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optopt = pfound->val;
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return optstring[0] == ':' ? ':' : '?';
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}
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}
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nextchar += strlen (nextchar);
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if (longind != NULL)
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*longind = option_index;
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if (pfound->flag)
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{
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*(pfound->flag) = pfound->val;
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return 0;
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}
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return pfound->val;
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}
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if (!long_only || argv[optind][1] == '-'
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|| my_index (optstring, *nextchar) == NULL)
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{
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if (print_errors)
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{
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if (argv[optind][1] == '-')
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fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
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argv[0], nextchar);
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else
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/* +option or -option */
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fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
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argv[0], argv[optind][0], nextchar);
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}
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nextchar = (char *) "";
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optind++;
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optopt = 0;
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return '?';
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}
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}
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{
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char c = *nextchar++;
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char *temp = my_index (optstring, c);
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if (*nextchar == '\0')
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++optind;
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if (temp == NULL || c == ':')
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{
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if (print_errors)
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{
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if (posixly_correct)
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fprintf (stderr, _("%s: illegal option -- %c\n"),
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argv[0], c);
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else
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fprintf (stderr, _("%s: invalid option -- %c\n"),
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argv[0], c);
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}
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optopt = c;
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return '?';
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}
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if (temp[0] == 'W' && temp[1] == ';')
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{
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char *nameend;
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const struct option *p;
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const struct option *pfound = NULL;
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int exact = 0;
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int ambig = 0;
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int indfound = 0;
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int option_index;
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if (*nextchar != '\0')
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{
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optarg = nextchar;
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optind++;
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}
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else if (optind == argc)
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{
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if (print_errors)
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{
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fprintf (stderr, _("%s: option requires an argument -- %c\n"),
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argv[0], c);
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}
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optopt = c;
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if (optstring[0] == ':')
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c = ':';
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else
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c = '?';
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return c;
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}
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else
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optarg = argv[optind++];
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for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
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/* Do nothing. */ ;
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for (p = longopts, option_index = 0; p->name; p++, option_index++)
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if (!strncmp (p->name, nextchar, nameend - nextchar))
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{
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if ((unsigned int) (nameend - nextchar) == strlen (p->name))
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{
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pfound = p;
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indfound = option_index;
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exact = 1;
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break;
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}
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else if (pfound == NULL)
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{
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pfound = p;
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indfound = option_index;
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}
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else
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ambig = 1;
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}
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if (ambig && !exact)
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{
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if (print_errors)
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fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
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argv[0], argv[optind]);
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nextchar += strlen (nextchar);
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optind++;
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return '?';
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}
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if (pfound != NULL)
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{
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option_index = indfound;
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if (*nameend)
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{
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if (pfound->has_arg)
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optarg = nameend + 1;
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else
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{
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if (print_errors)
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fprintf (stderr, _("\
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%s: option `-W %s' doesn't allow an argument\n"),
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argv[0], pfound->name);
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nextchar += strlen (nextchar);
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return '?';
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}
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}
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else if (pfound->has_arg == 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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{
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if (print_errors)
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fprintf (stderr,
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_("%s: option `%s' requires an argument\n"),
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argv[0], argv[optind - 1]);
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nextchar += strlen (nextchar);
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return optstring[0] == ':' ? ':' : '?';
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}
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}
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nextchar += strlen (nextchar);
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if (longind != NULL)
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*longind = option_index;
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if (pfound->flag)
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{
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*(pfound->flag) = pfound->val;
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return 0;
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}
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return pfound->val;
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}
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nextchar = NULL;
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return 'W'; /* Let the application handle it. */
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}
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if (temp[1] == ':')
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{
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if (temp[2] == ':')
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{
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if (*nextchar != '\0')
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{
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optarg = nextchar;
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optind++;
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}
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else
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optarg = NULL;
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nextchar = NULL;
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}
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else
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{
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if (*nextchar != '\0')
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{
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optarg = nextchar;
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optind++;
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}
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else if (optind == argc)
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{
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if (print_errors)
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{
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fprintf (stderr,
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_("%s: option requires an argument -- %c\n"),
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argv[0], c);
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}
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optopt = c;
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if (optstring[0] == ':')
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c = ':';
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else
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c = '?';
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}
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else
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optarg = argv[optind++];
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nextchar = NULL;
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}
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}
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return c;
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}
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}
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int
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getopt (argc, argv, optstring)
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int argc;
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char *const *argv;
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const char *optstring;
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{
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return _getopt_internal (argc, argv, optstring,
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(const struct option *) 0,
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(int *) 0,
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0);
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}
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