1 /* MI Command Set - MI Option Parser. 2 Copyright (C) 2000, 2001, 2007, 2008, 2009 Free Software Foundation, Inc. 3 Contributed by Cygnus Solutions (a Red Hat company). 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #include "defs.h" 21 #include "mi-getopt.h" 22 #include "gdb_string.h" 23 24 int 25 mi_getopt (const char *prefix, 26 int argc, char **argv, 27 struct mi_opt *opts, 28 int *optind, char **optarg) 29 { 30 char *arg; 31 struct mi_opt *opt; 32 /* We assume that argv/argc are ok. */ 33 if (*optind > argc || *optind < 0) 34 internal_error (__FILE__, __LINE__, 35 _("mi_getopt_long: optind out of bounds")); 36 if (*optind == argc) 37 return -1; 38 arg = argv[*optind]; 39 /* ``--''? */ 40 if (strcmp (arg, "--") == 0) 41 { 42 *optind += 1; 43 *optarg = NULL; 44 return -1; 45 } 46 /* End of option list. */ 47 if (arg[0] != '-') 48 { 49 *optarg = NULL; 50 return -1; 51 } 52 /* Look the option up. */ 53 for (opt = opts; opt->name != NULL; opt++) 54 { 55 if (strcmp (opt->name, arg + 1) != 0) 56 continue; 57 if (opt->arg_p) 58 { 59 /* A non-simple optarg option. */ 60 if (argc < *optind + 2) 61 error (_("%s: Option %s requires an argument"), prefix, arg); 62 *optarg = argv[(*optind) + 1]; 63 *optind = (*optind) + 2; 64 return opt->index; 65 } 66 else 67 { 68 *optarg = NULL; 69 *optind = (*optind) + 1; 70 return opt->index; 71 } 72 } 73 error (_("%s: Unknown option ``%s''"), prefix, arg + 1); 74 } 75 76 int 77 mi_valid_noargs (const char *prefix, int argc, char **argv) 78 { 79 int optind = 0; 80 char *optarg; 81 static struct mi_opt opts[] = 82 { 83 { 0, 0, 0 } 84 }; 85 86 if (mi_getopt (prefix, argc, argv, opts, &optind, &optarg) == -1) 87 return 1; 88 else 89 return 0; 90 } 91