Files
open-simh.simtools/extracters/vhd-util/gnugetopt.c
Timothe Litt b00e213506 Windows support for libvhd and vhd-util
Added windows support for libvhd and vhd-util.

Includes bug fixes as well.

See the README for details.
2016-03-25 12:37:44 -04:00

507 lines
9.8 KiB
C

/* This is GNU's getopt.c */
char *optarg;
int optind = 1;
int __getopt_initialized;
static char *nextchar;
int opterr = 1;
int optopt = '?';
static enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
static char *posixly_correct = 0;
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#define _(x) x
static char *
my_index (str, chr)
const char *str;
int chr;
{
while (*str)
{
if (*str == chr)
return (char *) str;
str++;
}
return 0;
}
static int first_nonopt;
static int last_nonopt;
# define SWAP_FLAGS(ch1, ch2)
#if defined __STDC__ && __STDC__
static void exchange (char **);
#endif
static void
exchange (argv)
char **argv;
{
int bottom = first_nonopt;
int middle = last_nonopt;
int top = optind;
char *tem;
while (top > middle && middle > bottom)
{
if (top - middle > middle - bottom)
{
int len = middle - bottom;
register int i;
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[top - (middle - bottom) + i];
argv[top - (middle - bottom) + i] = tem;
SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
}
top -= len;
}
else
{
int len = top - middle;
register int i;
for (i = 0; i < len; i++)
{
tem = argv[bottom + i];
argv[bottom + i] = argv[middle + i];
argv[middle + i] = tem;
SWAP_FLAGS (bottom + i, middle + i);
}
bottom += len;
}
}
first_nonopt += (optind - last_nonopt);
last_nonopt = optind;
}
#if defined __STDC__ && __STDC__
static const char *_getopt_initialize (int, char *const *, const char *);
#endif
static const char *
_getopt_initialize (argc, argv, optstring)
int argc;
char *const *argv;
const char *optstring;
{
first_nonopt = last_nonopt = optind;
nextchar = NULL;
if (optstring[0] == '-')
{
ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == '+')
{
ordering = REQUIRE_ORDER;
++optstring;
}
else if (posixly_correct != NULL)
ordering = REQUIRE_ORDER;
else
ordering = PERMUTE;
return optstring;
}
int
_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int argc;
char *const *argv;
const char *optstring;
const struct option *longopts;
int *longind;
int long_only;
{
int print_errors = opterr;
if (optstring[0] == ':')
print_errors = 0;
optarg = NULL;
if (optind == 0 || !__getopt_initialized)
{
if (optind == 0)
optind = 1; /* Don't scan ARGV[0], the program name. */
optstring = _getopt_initialize (argc, argv, optstring);
__getopt_initialized = 1;
}
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
if (nextchar == NULL || *nextchar == '\0')
{
if (last_nonopt > optind)
last_nonopt = optind;
if (first_nonopt > optind)
first_nonopt = optind;
if (ordering == PERMUTE)
{
if (first_nonopt != last_nonopt && last_nonopt != optind)
exchange ((char **) argv);
else if (last_nonopt != optind)
first_nonopt = optind;
while (optind < argc && NONOPTION_P)
optind++;
last_nonopt = optind;
}
if (optind != argc && !strcmp (argv[optind], "--"))
{
optind++;
if (first_nonopt != last_nonopt && last_nonopt != optind)
exchange ((char **) argv);
else if (first_nonopt == last_nonopt)
first_nonopt = optind;
last_nonopt = argc;
optind = argc;
}
if (optind == argc)
{
if (first_nonopt != last_nonopt)
optind = first_nonopt;
return -1;
}
if (NONOPTION_P)
{
if (ordering == REQUIRE_ORDER)
return -1;
optarg = argv[optind++];
return 1;
}
nextchar = (argv[optind] + 1
+ (longopts != NULL && argv[optind][1] == '-'));
}
if (longopts != NULL
&& (argv[optind][1] == '-'
|| (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
{
char *nameend;
const struct option *p;
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = -1;
int option_index;
for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
{
if ((unsigned int) (nameend - nextchar)
== (unsigned int) strlen (p->name))
{
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
pfound = p;
indfound = option_index;
}
else
ambig = 1;
}
if (ambig && !exact)
{
if (print_errors)
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]);
nextchar += strlen (nextchar);
optind++;
optopt = 0;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
optind++;
if (*nameend)
{
if (pfound->has_arg)
optarg = nameend + 1;
else
{
if (print_errors)
{
if (argv[optind - 1][1] == '-')
fprintf (stderr,
_("%s: option `--%s' doesn't allow an argument\n"),
argv[0], pfound->name);
else
fprintf (stderr,
_("%s: option `%c%s' doesn't allow an argument\n"),
argv[0], argv[optind - 1][0], pfound->name);
}
nextchar += strlen (nextchar);
optopt = pfound->val;
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
else
{
if (print_errors)
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
nextchar += strlen (nextchar);
optopt = pfound->val;
return optstring[0] == ':' ? ':' : '?';
}
}
nextchar += strlen (nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
if (!long_only || argv[optind][1] == '-'
|| my_index (optstring, *nextchar) == NULL)
{
if (print_errors)
{
if (argv[optind][1] == '-')
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
argv[0], nextchar);
else
/* +option or -option */
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
argv[0], argv[optind][0], nextchar);
}
nextchar = (char *) "";
optind++;
optopt = 0;
return '?';
}
}
{
char c = *nextchar++;
char *temp = my_index (optstring, c);
if (*nextchar == '\0')
++optind;
if (temp == NULL || c == ':')
{
if (print_errors)
{
if (posixly_correct)
fprintf (stderr, _("%s: illegal option -- %c\n"),
argv[0], c);
else
fprintf (stderr, _("%s: invalid option -- %c\n"),
argv[0], c);
}
optopt = c;
return '?';
}
if (temp[0] == 'W' && temp[1] == ';')
{
char *nameend;
const struct option *p;
const struct option *pfound = NULL;
int exact = 0;
int ambig = 0;
int indfound = 0;
int option_index;
if (*nextchar != '\0')
{
optarg = nextchar;
optind++;
}
else if (optind == argc)
{
if (print_errors)
{
fprintf (stderr, _("%s: option requires an argument -- %c\n"),
argv[0], c);
}
optopt = c;
if (optstring[0] == ':')
c = ':';
else
c = '?';
return c;
}
else
optarg = argv[optind++];
for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
{
if ((unsigned int) (nameend - nextchar) == strlen (p->name))
{
pfound = p;
indfound = option_index;
exact = 1;
break;
}
else if (pfound == NULL)
{
pfound = p;
indfound = option_index;
}
else
ambig = 1;
}
if (ambig && !exact)
{
if (print_errors)
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]);
nextchar += strlen (nextchar);
optind++;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
if (*nameend)
{
if (pfound->has_arg)
optarg = nameend + 1;
else
{
if (print_errors)
fprintf (stderr, _("\
%s: option `-W %s' doesn't allow an argument\n"),
argv[0], pfound->name);
nextchar += strlen (nextchar);
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
else
{
if (print_errors)
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
nextchar += strlen (nextchar);
return optstring[0] == ':' ? ':' : '?';
}
}
nextchar += strlen (nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
{
*(pfound->flag) = pfound->val;
return 0;
}
return pfound->val;
}
nextchar = NULL;
return 'W'; /* Let the application handle it. */
}
if (temp[1] == ':')
{
if (temp[2] == ':')
{
if (*nextchar != '\0')
{
optarg = nextchar;
optind++;
}
else
optarg = NULL;
nextchar = NULL;
}
else
{
if (*nextchar != '\0')
{
optarg = nextchar;
optind++;
}
else if (optind == argc)
{
if (print_errors)
{
fprintf (stderr,
_("%s: option requires an argument -- %c\n"),
argv[0], c);
}
optopt = c;
if (optstring[0] == ':')
c = ':';
else
c = '?';
}
else
optarg = argv[optind++];
nextchar = NULL;
}
}
return c;
}
}
int
getopt (argc, argv, optstring)
int argc;
char *const *argv;
const char *optstring;
{
return _getopt_internal (argc, argv, optstring,
(const struct option *) 0,
(int *) 0,
0);
}