1 /* MI Command Set - MI Option Parser. 2 Copyright (C) 2000, 2001, 2007, 2008, 2009, 2010, 2011 3 Free Software Foundation, Inc. 4 Contributed by Cygnus Solutions (a Red Hat company). 5 6 This file is part of GDB. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 20 21 #include "defs.h" 22 #include "mi-getopt.h" 23 #include "gdb_string.h" 24 25 int 26 mi_getopt (const char *prefix, 27 int argc, char **argv, 28 struct mi_opt *opts, 29 int *optind, char **optarg) 30 { 31 char *arg; 32 struct mi_opt *opt; 33 34 /* We assume that argv/argc are ok. */ 35 if (*optind > argc || *optind < 0) 36 internal_error (__FILE__, __LINE__, 37 _("mi_getopt_long: optind out of bounds")); 38 if (*optind == argc) 39 return -1; 40 arg = argv[*optind]; 41 /* ``--''? */ 42 if (strcmp (arg, "--") == 0) 43 { 44 *optind += 1; 45 *optarg = NULL; 46 return -1; 47 } 48 /* End of option list. */ 49 if (arg[0] != '-') 50 { 51 *optarg = NULL; 52 return -1; 53 } 54 /* Look the option up. */ 55 for (opt = opts; opt->name != NULL; opt++) 56 { 57 if (strcmp (opt->name, arg + 1) != 0) 58 continue; 59 if (opt->arg_p) 60 { 61 /* A non-simple optarg option. */ 62 if (argc < *optind + 2) 63 error (_("%s: Option %s requires an argument"), prefix, arg); 64 *optarg = argv[(*optind) + 1]; 65 *optind = (*optind) + 2; 66 return opt->index; 67 } 68 else 69 { 70 *optarg = NULL; 71 *optind = (*optind) + 1; 72 return opt->index; 73 } 74 } 75 error (_("%s: Unknown option ``%s''"), prefix, arg + 1); 76 } 77 78 int 79 mi_valid_noargs (const char *prefix, int argc, char **argv) 80 { 81 int optind = 0; 82 char *optarg; 83 static struct mi_opt opts[] = 84 { 85 { 0, 0, 0 } 86 }; 87 88 if (mi_getopt (prefix, argc, argv, opts, &optind, &optarg) == -1) 89 return 1; 90 else 91 return 0; 92 } 93