1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2005-2008 Poul-Henning Kamp 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <sysexits.h> 34 #include <unistd.h> 35 #include <err.h> 36 #include <libutil.h> 37 38 #include "libfifolog.h" 39 40 #define DEF_RECSIZE 512 41 #define DEF_RECCNT (24 * 60 * 60) 42 43 static void 44 usage(void) 45 { 46 fprintf(stderr, "Usage: fifolog_create [-l record-size] " 47 "[-r record-count] [-s size] file\n"); 48 exit(EX_USAGE); 49 } 50 51 int 52 main(int argc, char * const *argv) 53 { 54 int ch; 55 int64_t size; 56 int64_t recsize; 57 int64_t reccnt; 58 const char *s; 59 60 recsize = 0; 61 size = 0; 62 reccnt = 0; 63 while((ch = getopt(argc, argv, "l:r:s:")) != -1) { 64 switch (ch) { 65 case 'l': 66 if (expand_number(optarg, &recsize)) 67 err(1, "Couldn't parse -l argument"); 68 break; 69 case 'r': 70 if (expand_number(optarg, &reccnt)) 71 err(1, "Couldn't parse -r argument"); 72 break; 73 case 's': 74 if (expand_number(optarg, &size)) 75 err(1, "Couldn't parse -s argument"); 76 break; 77 default: 78 usage(); 79 } 80 } 81 argc -= optind; 82 argv += optind; 83 if (argc != 1) 84 usage(); 85 86 if (size != 0 && reccnt != 0 && recsize != 0) { /* N N N */ 87 if (size != reccnt * recsize) 88 errx(1, "Inconsistent -l, -r and -s values"); 89 } else if (size != 0 && reccnt != 0 && recsize == 0) { /* N N Z */ 90 if (size % reccnt) 91 errx(1, 92 "Inconsistent -r and -s values (gives remainder)"); 93 recsize = size / reccnt; 94 } else if (size != 0 && reccnt == 0 && recsize != 0) { /* N Z N */ 95 if (size % recsize) 96 errx(1, "-s arg not divisible by -l arg"); 97 } else if (size != 0 && reccnt == 0 && recsize == 0) { /* N Z Z */ 98 recsize = DEF_RECSIZE; 99 if (size % recsize) 100 errx(1, "-s arg not divisible by %jd", recsize); 101 } else if (size == 0 && reccnt != 0 && recsize != 0) { /* Z N N */ 102 size = reccnt * recsize; 103 } else if (size == 0 && reccnt != 0 && recsize == 0) { /* Z N Z */ 104 recsize = DEF_RECSIZE; 105 size = reccnt * recsize; 106 } else if (size == 0 && reccnt == 0 && recsize != 0) { /* Z Z N */ 107 size = DEF_RECCNT * recsize; 108 } else if (size == 0 && reccnt == 0 && recsize == 0) { /* Z Z Z */ 109 recsize = DEF_RECSIZE; 110 size = DEF_RECCNT * recsize; 111 } 112 113 s = fifolog_create(argv[0], size, recsize); 114 if (s == NULL) 115 return (0); 116 err(1, "%s", s); 117 } 118