misc/uuidgen.c

   1 /*
   2  * gen_uuid.c --- generate a DCE-compatible uuid
   3  *
   4  * Copyright (C) 1999, Andreas Dilger and Theodore Ts'o
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 #include "config.h"
  13 #include <stdio.h>
  14 #ifdef HAVE_STDLIB_H
  15 #include <stdlib.h>
  16 #endif
  17 #ifdef HAVE_GETOPT_H
  18 #include <getopt.h>
  19 #else
  20 extern int getopt(int argc, char * const argv[], const char *optstring);
  21 extern char *optarg;
  22 extern int optind;
  23 #endif
  24 #include "uuid/uuid.h"
  25 #include "support/nls-enable.h"
  26
  27 #define DO_TYPE_TIME    1
  28 #define DO_TYPE_RANDOM  2
  29
  30 static void usage(const char *progname)
  31 {
  32         fprintf(stderr, _("Usage: %s [-r] [-t]\n"), progname);
  33         exit(1);
  34 }
  35
  36 int
  37 main (int argc, char *argv[])
  38 {
  39         int    c;
  40         int    do_type = 0;
  41         char   str[37];
  42         uuid_t uu;
  43
  44 #ifdef ENABLE_NLS
  45         setlocale(LC_MESSAGES, "");
  46         setlocale(LC_CTYPE, "");
  47         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
  48         textdomain(NLS_CAT_NAME);
  49 #endif
  50
  51         while ((c = getopt (argc, argv, "tr")) != EOF)
  52                 switch (c) {
  53                 case 't':
  54                         do_type = DO_TYPE_TIME;
  55                         break;
  56                 case 'r':
  57                         do_type = DO_TYPE_RANDOM;
  58                         break;
  59                 default:
  60                         usage(argv[0]);
  61                 }
  62
  63         switch (do_type) {
  64         case DO_TYPE_TIME:
  65                 uuid_generate_time(uu);
  66                 break;
  67         case DO_TYPE_RANDOM:
  68                 uuid_generate_random(uu);
  69                 break;
  70         default:
  71                 uuid_generate(uu);
  72                 break;
  73         }
  74
  75         uuid_unparse(uu, str);
  76
  77         printf("%s\n", str);
  78
  79         return 0;
  80 }