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Diffstat (limited to 'vpdopt.c')
| -rw-r--r-- | vpdopt.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/vpdopt.c b/vpdopt.c new file mode 100644 index 0000000..021ade2 --- /dev/null +++ b/vpdopt.c @@ -0,0 +1,157 @@ +/* + * Command line handling of vpddecode + * This file is part of the dmidecode project. + * + * Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <stdio.h> +#include <strings.h> +#include <stdlib.h> +#include <getopt.h> + +#include "config.h" +#include "util.h" +#include "vpdopt.h" + + +/* Options are global */ +struct opt opt; + + +/* + * Handling of option --string + */ + +/* This lookup table could admittedly be reworked for improved performance. + Due to the low count of items in there at the moment, it did not seem + worth the additional code complexity though. */ +static const struct string_keyword opt_string_keyword[] = { + { "bios-build-id", 0x0D, 9 }, + { "box-serial-number", 0x16, 7 }, + { "motherboard-serial-number", 0x1D, 11 }, + { "machine-type-model", 0x28, 7 }, + { "bios-release-date", 0x30, 8 }, +}; + +static void print_opt_string_list(void) +{ + unsigned int i; + + fprintf(stderr, "Valid string keywords are:\n"); + for (i = 0; i < ARRAY_SIZE(opt_string_keyword); i++) + { + fprintf(stderr, " %s\n", opt_string_keyword[i].keyword); + } +} + +static int parse_opt_string(const char *arg) +{ + unsigned int i; + + if (opt.string) + { + fprintf(stderr, "Only one string can be specified\n"); + return -1; + } + + for (i = 0; i<ARRAY_SIZE(opt_string_keyword); i++) + { + if (!strcasecmp(arg, opt_string_keyword[i].keyword)) + { + opt.string = &opt_string_keyword[i]; + return 0; + } + } + + fprintf(stderr, "Invalid string keyword: %s\n", arg); + print_opt_string_list(); + return -1; +} + + +/* + * Command line options handling + */ + +/* Return -1 on error, 0 on success */ +int parse_command_line(int argc, char * const argv[]) +{ + int option; + const char *optstring = "d:hs:uV"; + struct option longopts[] = { + { "dev-mem", required_argument, NULL, 'd' }, + { "help", no_argument, NULL, 'h' }, + { "string", required_argument, NULL, 's' }, + { "dump", no_argument, NULL, 'u' }, + { "version", no_argument, NULL, 'V' }, + { 0, 0, 0, 0 } + }; + + while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1) + switch (option) + { + case 'd': + opt.devmem = optarg; + break; + case 'h': + opt.flags |= FLAG_HELP; + break; + case 's': + if (parse_opt_string(optarg) < 0) + return -1; + opt.flags |= FLAG_QUIET; + break; + case 'u': + opt.flags |= FLAG_DUMP; + break; + case 'V': + opt.flags |= FLAG_VERSION; + break; + case '?': + switch (optopt) + { + case 's': + fprintf(stderr, "String keyword expected\n"); + print_opt_string_list(); + break; + } + return -1; + } + + if ((opt.flags & FLAG_DUMP) && opt.string != NULL) + { + fprintf(stderr, "Options --string and --dump are mutually exclusive\n"); + return -1; + } + + return 0; +} + +void print_help(void) +{ + static const char *help = + "Usage: vpddecode [OPTIONS]\n" + "Options are:\n" + " -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n" + " -h, --help Display this help text and exit\n" + " -s, --string KEYWORD Only display the value of the given VPD string\n" + " -u, --dump Do not decode the VPD records\n" + " -V, --version Display the version and exit\n"; + + printf("%s", help); +} |