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 * $FreeBSD: src/usr.bin/uuidgen/uuidgen.c,v 1.3 2003/03/15 02:27:10 marcel Exp $ 27 */ 28 29 #include <err.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <unistd.h> 33 #include <uuid.h> 34 35 static void 36 usage(void) 37 { 38 (void)fprintf(stderr, "usage: uuidgen [-1] [-n count] [-o filename]\n"); 39 exit(1); 40 } 41 42 int 43 main(int argc, char *argv[]) 44 { 45 FILE *fp; 46 uuid_t *store, *uuid; 47 char *p; 48 int ch, count, i, iterate; 49 50 count = -1; /* no count yet */ 51 fp = stdout; /* default output file */ 52 iterate = 0; /* not one at a time */ 53 while ((ch = getopt(argc, argv, "1n:o:")) != -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 case 'o': 66 if (fp != stdout) 67 errx(1, "multiple output files not allowed"); 68 fp = fopen(optarg, "w"); 69 if (fp == NULL) 70 err(1, "fopen"); 71 break; 72 default: 73 usage(); 74 } 75 argv += optind; 76 argc -= optind; 77 78 if (argc) 79 usage(); 80 81 if (count == -1) 82 count = 1; 83 84 store = (uuid_t*)malloc(sizeof(uuid_t) * count); 85 if (store == NULL) 86 err(1, "malloc()"); 87 88 if (!iterate) { 89 /* Get them all in a single batch */ 90 if (uuidgen(store, count) != 0) 91 err(1, "uuidgen()"); 92 } else { 93 uuid = store; 94 for (i = 0; i < count; i++) { 95 if (uuidgen(uuid++, 1) != 0) 96 err(1, "uuidgen()"); 97 } 98 } 99 100 uuid = store; 101 while (count--) { 102 uuid_to_string(uuid++, &p, NULL); 103 fprintf(fp, "%s\n", p); 104 free(p); 105 } 106 107 free(store); 108 if (fp != stdout) 109 fclose(fp); 110 return (0); 111 } 112