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 * $Id$ 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/types.h> 33 #include <sys/endian.h> 34 #include <sys/uuid.h> 35 36 #include <err.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <unistd.h> 40 41 static void 42 usage(void) 43 { 44 (void)fprintf(stderr, "usage: uuidgen [-1] [-n count]\n"); 45 exit(1); 46 } 47 48 static void 49 uuid_print(uuid_t *uuid) 50 { 51 printf("%08x-%04x-%04x-%02x%02x-", uuid->time_low, uuid->time_mid, 52 uuid->time_hi_and_version, uuid->clock_seq_hi_and_reserved, 53 uuid->clock_seq_low); 54 printf("%02x%02x%02x%02x%02x%02x\n", uuid->node[0], uuid->node[1], 55 uuid->node[2], uuid->node[3], uuid->node[4], uuid->node[5]); 56 } 57 58 int 59 main(int argc, char *argv[]) 60 { 61 uuid_t *store, *uuid; 62 char *p; 63 int ch, count, i, iterate; 64 65 count = -1; /* no count yet */ 66 iterate = 0; /* not one at a time */ 67 while ((ch = getopt(argc, argv, "1n:")) != -1) 68 switch (ch) { 69 case '1': 70 iterate = 1; 71 break; 72 case 'n': 73 if (count > 0) 74 usage(); 75 count = strtol(optarg, &p, 10); 76 if (*p != 0 || count < 1) 77 usage(); 78 break; 79 default: 80 usage(); 81 } 82 argv += optind; 83 argc -= optind; 84 85 if (argc) 86 usage(); 87 88 if (count == -1) 89 count = 1; 90 91 store = (uuid_t*)malloc(sizeof(uuid_t) * count); 92 if (store == NULL) 93 err(1, "malloc()"); 94 95 if (!iterate) { 96 /* Get them all in a single batch */ 97 if (uuidgen(store, count) != 0) 98 err(1, "uuidgen()"); 99 } else { 100 uuid = store; 101 for (i = 0; i < count; i++) { 102 if (uuidgen(uuid++, 1) != 0) 103 err(1, "uuidgen()"); 104 } 105 } 106 107 uuid = store; 108 while (count--) 109 uuid_print(uuid++); 110 111 free(store); 112 return (0); 113 } 114