gsasl  1.10.0
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getopt1.c
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1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2  Copyright (C) 1987-2021 Free Software Foundation, Inc.
3  This file is part of the GNU C Library and is also part of gnulib.
4  Patches to this file should be submitted to both projects.
5 
6  The GNU C Library is free software; you can redistribute it and/or
7  modify it under the terms of the GNU General Public
8  License as published by the Free Software Foundation; either
9  version 3 of the License, or (at your option) any later version.
10 
11  The GNU C Library is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  General Public License for more details.
15 
16  You should have received a copy of the GNU General Public
17  License along with the GNU C Library; if not, see
18  <https://www.gnu.org/licenses/>. */
19 ␌
20 #ifndef _LIBC
21 # include <config.h>
22 #endif
23 
24 #include "getopt.h"
25 #include "getopt_int.h"
26 
27 int
28 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
29  const struct option *long_options, int *opt_index)
30 {
31  return _getopt_internal (argc, (char **) argv, options, long_options,
32  opt_index, 0, 0);
33 }
34 
35 int
36 _getopt_long_r (int argc, char **argv, const char *options,
37  const struct option *long_options, int *opt_index,
38  struct _getopt_data *d)
39 {
40  return _getopt_internal_r (argc, argv, options, long_options, opt_index,
41  0, d, 0);
42 }
43 
44 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
45  If an option that starts with '-' (not '--') doesn't match a long option,
46  but does match a short option, it is parsed as a short option
47  instead. */
48 
49 int
50 getopt_long_only (int argc, char *__getopt_argv_const *argv,
51  const char *options,
52  const struct option *long_options, int *opt_index)
53 {
54  return _getopt_internal (argc, (char **) argv, options, long_options,
55  opt_index, 1, 0);
56 }
57 
58 int
59 _getopt_long_only_r (int argc, char **argv, const char *options,
60  const struct option *long_options, int *opt_index,
61  struct _getopt_data *d)
62 {
63  return _getopt_internal_r (argc, argv, options, long_options, opt_index,
64  1, d, 0);
65 }
66 
67 ␌
68 #ifdef TEST
69 
70 #include <stdio.h>
71 #include <stdlib.h>
72 
73 int
74 main (int argc, char **argv)
75 {
76  int c;
77  int digit_optind = 0;
78 
79  while (1)
80  {
81  int this_option_optind = optind ? optind : 1;
82  int option_index = 0;
83  static const struct option long_options[] =
84  {
85  {"add", 1, 0, 0},
86  {"append", 0, 0, 0},
87  {"delete", 1, 0, 0},
88  {"verbose", 0, 0, 0},
89  {"create", 0, 0, 0},
90  {"file", 1, 0, 0},
91  {0, 0, 0, 0}
92  };
93 
94  c = getopt_long (argc, argv, "abc:d:0123456789",
95  long_options, &option_index);
96  if (c == -1)
97  break;
98 
99  switch (c)
100  {
101  case 0:
102  printf ("option %s", long_options[option_index].name);
103  if (optarg)
104  printf (" with arg %s", optarg);
105  printf ("\n");
106  break;
107 
108  case '0':
109  case '1':
110  case '2':
111  case '3':
112  case '4':
113  case '5':
114  case '6':
115  case '7':
116  case '8':
117  case '9':
118  if (digit_optind != 0 && digit_optind != this_option_optind)
119  printf ("digits occur in two different argv-elements.\n");
120  digit_optind = this_option_optind;
121  printf ("option %c\n", c);
122  break;
123 
124  case 'a':
125  printf ("option a\n");
126  break;
127 
128  case 'b':
129  printf ("option b\n");
130  break;
131 
132  case 'c':
133  printf ("option c with value '%s'\n", optarg);
134  break;
135 
136  case 'd':
137  printf ("option d with value '%s'\n", optarg);
138  break;
139 
140  case '?':
141  break;
142 
143  default:
144  printf ("?? getopt returned character code 0%o ??\n", c);
145  }
146  }
147 
148  if (optind < argc)
149  {
150  printf ("non-option ARGV-elements: ");
151  while (optind < argc)
152  printf ("%s ", argv[optind++]);
153  printf ("\n");
154  }
155 
156  exit (0);
157 }
158 
159 #endif /* TEST */
__BEGIN_DECLS char * optarg
Definition: getopt.c:89
int optind
Definition: getopt.c:104
#define __getopt_argv_const
int getopt_long_only(int argc, char *__getopt_argv_const *argv, const char *options, const struct option *long_options, int *opt_index)
Definition: getopt1.c:50
int getopt_long(int argc, char *__getopt_argv_const *argv, const char *options, const struct option *long_options, int *opt_index)
Definition: getopt1.c:28
int _getopt_long_r(int argc, char **argv, const char *options, const struct option *long_options, int *opt_index, struct _getopt_data *d)
Definition: getopt1.c:36
int _getopt_long_only_r(int argc, char **argv, const char *options, const struct option *long_options, int *opt_index, struct _getopt_data *d)
Definition: getopt1.c:59
int _getopt_internal(int argc, char **argv, const char *optstring, const struct option *longopts, int *longind, int long_only, int posixly_correct)
Definition: getopt.c:703
int _getopt_internal_r(int argc, char **argv, const char *optstring, const struct option *longopts, int *longind, int long_only, struct _getopt_data *d, int posixly_correct)
Definition: getopt.c:471
const char * name
Definition: error.c:43
unsigned char c
int main(void)
Definition: print-errors.c:33