1 /* 2 * Copyright (c) 2002 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <err.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 #include <uuid.h> 36 37 static void 38 usage(void) 39 { 40 (void)fprintf(stderr, "usage: uuidgen [-1] [-n count]\n"); 41 exit(1); 42 } 43 44 int 45 main(int argc, char *argv[]) 46 { 47 uuid_t *store, *uuid; 48 char *p; 49 int ch, count, i, iterate; 50 51 count = -1; /* no count yet */ 52 iterate = 0; /* not one at a time */ 53 while ((ch = getopt(argc, argv, "1n:")) != -1) 54 switch (ch) { 55 case '1': 56 iterate = 1; 57 break; 58 case 'n': 59 if (count > 0) 60 usage(); 61 count = strtol(optarg, &p, 10); 62 if (*p != 0 || count < 1) 63 usage(); 64 break; 65 default: 66 usage(); 67 } 68 argv += optind; 69 argc -= optind; 70 71 if (argc) 72 usage(); 73 74 if (count == -1) 75 count = 1; 76 77 store = (uuid_t*)malloc(sizeof(uuid_t) * count); 78 if (store == NULL) 79 err(1, "malloc()"); 80 81 if (!iterate) { 82 /* Get them all in a single batch */ 83 if (uuidgen(store, count) != 0) 84 err(1, "uuidgen()"); 85 } else { 86 uuid = store; 87 for (i = 0; i < count; i++) { 88 if (uuidgen(uuid++, 1) != 0) 89 err(1, "uuidgen()"); 90 } 91 } 92 93 uuid = store; 94 while (count--) { 95 uuid_to_string(uuid++, &p, NULL); 96 printf("%s\n", p); 97 free(p); 98 } 99 100 free(store); 101 return (0); 102 } 103