6 extern int __optpos, __optreset;
8 static int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
10 if (!optind || __optreset) {
15 if (optind >= argc || !argv[optind]) return -1;
16 if (argv[optind][0] == '-' &&
17 ((longonly && argv[optind][1]) ||
18 (argv[optind][1] == '-' && argv[optind][2])))
21 for (i=0; longopts[i].name; i++) {
22 const char *name = longopts[i].name;
23 char *opt = argv[optind]+1;
24 if (*opt == '-') opt++;
25 for (; *name && *name == *opt; name++, opt++);
26 if (*name || (*opt && *opt != '=')) continue;
28 if (!longopts[i].has_arg) continue;
31 if (longopts[i].has_arg == required_argument) {
32 if (!(optarg = argv[++optind]))
38 if (longopts[i].flag) {
39 *longopts[i].flag = longopts[i].val;
42 return longopts[i].val;
44 if (argv[optind][1] == '-') {
49 return getopt(argc, argv, optstring);
52 int getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx)
54 return __getopt_long(argc, argv, optstring, longopts, idx, 0);
57 int getopt_long_only(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx)
59 return __getopt_long(argc, argv, optstring, longopts, idx, 1);