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] || argv[optind][0] != '-') return -1;
16 if ((longonly && argv[optind][1]) ||
17 (argv[optind][1] == '-' && argv[optind][2]))
20 for (i=0; longopts[i].name; i++) {
21 const char *name = longopts[i].name;
22 char *opt = argv[optind]+1;
23 if (*opt == '-') opt++;
24 for (; *name && *name == *opt; name++, opt++);
25 if (*name || (*opt && *opt != '=')) continue;
27 if (!longopts[i].has_arg) continue;
30 if (longopts[i].has_arg == required_argument) {
31 if (!(optarg = argv[++optind]))
37 if (longopts[i].flag) {
38 *longopts[i].flag = longopts[i].val;
41 return longopts[i].val;
43 if (argv[optind][1] == '-') {
48 return getopt(argc, argv, optstring);
51 int getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx)
53 return __getopt_long(argc, argv, optstring, longopts, idx, 0);
56 int getopt_long_only(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx)
58 return __getopt_long(argc, argv, optstring, longopts, idx, 1);