/* * Copyright (C) 2006 Rich Felker <dalias@aerifal.cx> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <stddef.h> #include <getopt.h> #include <stdio.h> static int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly) { if (optind >= argc || !argv[optind] || argv[optind][0] != '-') return -1; if ((longonly && argv[optind][1]) || (argv[optind][1] == '-' && argv[optind][2])) { int i; for (i=0; longopts[i].name; i++) { const char *name = longopts[i].name; char *opt = argv[optind]+2; while (*name && *name++ == *opt++); if (*name || (*opt && *opt != '=')) continue; if (*opt == '=') { if (!longopts[i].has_arg) continue; optarg = opt+1; } else { if (longopts[i].has_arg == required_argument) { if (!(optarg = argv[++optind])) return ':'; } else optarg = NULL; } optind++; if (idx) *idx = i; if (longopts[i].flag) { *longopts[i].flag = longopts[i].val; return 0; } return longopts[i].val; } if (argv[optind][1] == '-') { optind++; return '?'; } } return getopt(argc, argv, optstring); } int getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx) { return __getopt_long(argc, argv, optstring, longopts, idx, 0); } int getopt_long_only(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx) { return __getopt_long(argc, argv, optstring, longopts, idx, 1); }