2 * getopt_long() -- long options parser
4 * Portions Copyright (c) 1987, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
7 * Portions Copyright (c) 2003
8 * PostgreSQL Global Development Group
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #ifndef HAVE_GETOPT_LONG
39 #include "getopt_long.h"
50 getopt_long(int argc, char *const argv[],
51 const char *optstring,
52 const struct option * longopts, int *longindex)
54 static char *place = EMSG; /* option letter processing */
55 char *oli; /* option letter list index */
58 { /* update scanning pointer */
75 if (place[0] && place[0] == '-' && place[1] == '\0')
82 if (place[0] && place[0] == '-' && place[1])
90 namelen = strcspn(place, "=");
91 for (i = 0; longopts[i].name != NULL; i++)
93 if (strlen(longopts[i].name) == namelen
94 && strncmp(place, longopts[i].name, namelen) == 0)
96 if (longopts[i].has_arg)
98 if (place[namelen] == '=')
99 optarg = place + namelen + 1;
100 else if (optind < argc - 1)
103 optarg = argv[optind];
107 if (optstring[0] == ':')
111 "%s: option requires an argument -- %s\n",
121 if (place[namelen] != 0)
134 if (longopts[i].flag == NULL)
135 return longopts[i].val;
138 *longopts[i].flag = longopts[i].val;
144 if (opterr && optstring[0] != ':')
146 "%s: illegal option -- %s\n", argv[0], place);
154 optopt = (int) *place++;
156 oli = strchr(optstring, optopt);
161 if (opterr && *optstring != ':')
163 "%s: illegal option -- %c\n", argv[0], optopt);
168 { /* don't need argument */
174 { /* need an argument */
175 if (*place) /* no white space */
177 else if (argc <= ++optind)
180 if (*optstring == ':')
184 "%s: option requires an argument -- %c\n",
190 optarg = argv[optind];
197 #endif /* HAVE_GETOPT_LONG */