2 * getopt_long() -- long options parser
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34 * $PostgreSQL: pgsql/src/port/getopt_long.c,v 1.6 2007/03/26 21:44:11 momjian Exp $
39 #include "getopt_long.h"
41 #ifndef HAVE_INT_OPTRESET
51 getopt_long(int argc, char *const argv[],
52 const char *optstring,
53 const struct option * longopts, int *longindex)
55 static char *place = EMSG; /* option letter processing */
56 char *oli; /* option letter list index */
58 if (optreset || !*place)
59 { /* update scanning pointer */
78 if (place[0] && place[0] == '-' && place[1] == '\0')
85 if (place[0] && place[0] == '-' && place[1])
93 namelen = strcspn(place, "=");
94 for (i = 0; longopts[i].name != NULL; i++)
96 if (strlen(longopts[i].name) == namelen
97 && strncmp(place, longopts[i].name, namelen) == 0)
99 if (longopts[i].has_arg)
101 if (place[namelen] == '=')
102 optarg = place + namelen + 1;
103 else if (optind < argc - 1)
106 optarg = argv[optind];
110 if (optstring[0] == ':')
114 "%s: option requires an argument -- %s\n",
124 if (place[namelen] != 0)
137 if (longopts[i].flag == NULL)
138 return longopts[i].val;
141 *longopts[i].flag = longopts[i].val;
147 if (opterr && optstring[0] != ':')
149 "%s: illegal option -- %s\n", argv[0], place);
157 optopt = (int) *place++;
159 oli = strchr(optstring, optopt);
164 if (opterr && *optstring != ':')
166 "%s: illegal option -- %c\n", argv[0], optopt);
171 { /* don't need argument */
177 { /* need an argument */
178 if (*place) /* no white space */
180 else if (argc <= ++optind)
183 if (*optstring == ':')
187 "%s: option requires an argument -- %c\n",
193 optarg = argv[optind];