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      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 <stdio.h>
     13 #ifdef HAVE_STDLIB_H
     14 #include <stdlib.h>
     15 #endif
     16 #ifdef HAVE_GETOPT_H
     17 #include <getopt.h>
     18 #else
     19 extern int getopt(int argc, char * const argv[], const char *optstring);
     20 extern char *optarg;
     21 extern int optind;
     22 #endif
     23 #include "uuid/uuid.h"
     24 #include "nls-enable.h"
     25 
     26 #define DO_TYPE_TIME	1
     27 #define DO_TYPE_RANDOM	2
     28 
     29 static void usage(const char *progname)
     30 {
     31 	fprintf(stderr, _("Usage: %s [-r] [-t]\n"), progname);
     32 	exit(1);
     33 }
     34 
     35 int
     36 main (int argc, char *argv[])
     37 {
     38 	int    c;
     39 	int    do_type = 0;
     40 	char   str[37];
     41 	uuid_t uu;
     42 
     43 #ifdef ENABLE_NLS
     44 	setlocale(LC_MESSAGES, "");
     45 	setlocale(LC_CTYPE, "");
     46 	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
     47 	textdomain(NLS_CAT_NAME);
     48 #endif
     49 
     50 	while ((c = getopt (argc, argv, "tr")) != EOF)
     51 		switch (c) {
     52 		case 't':
     53 			do_type = DO_TYPE_TIME;
     54 			break;
     55 		case 'r':
     56 			do_type = DO_TYPE_RANDOM;
     57 			break;
     58 		default:
     59 			usage(argv[0]);
     60 		}
     61 
     62 	switch (do_type) {
     63 	case DO_TYPE_TIME:
     64 		uuid_generate_time(uu);
     65 		break;
     66 	case DO_TYPE_RANDOM:
     67 		uuid_generate_random(uu);
     68 		break;
     69 	default:
     70 		uuid_generate(uu);
     71 		break;
     72 	}
     73 
     74 	uuid_unparse(uu, str);
     75 
     76 	printf("%s\n", str);
     77 
     78 	return 0;
     79 }
     80