1 /*- 2 * Copyright (c) 2005-2008 Poul-Henning Kamp 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <sysexits.h> 32 #include <unistd.h> 33 #include <err.h> 34 #include <libutil.h> 35 36 #include "libfifolog.h" 37 38 #define DEF_RECSIZE 512 39 #define DEF_RECCNT (24 * 60 * 60) 40 41 static void 42 usage(void) 43 { 44 fprintf(stderr, "Usage: fifolog_create [-l record-size] " 45 "[-r record-count] [-s size] file\n"); 46 exit(EX_USAGE); 47 } 48 49 int 50 main(int argc, char * const *argv) 51 { 52 int ch; 53 int64_t size; 54 int64_t recsize; 55 int64_t reccnt; 56 const char *s; 57 58 recsize = 0; 59 size = 0; 60 reccnt = 0; 61 while((ch = getopt(argc, argv, "l:r:s:")) != -1) { 62 switch (ch) { 63 case 'l': 64 if (expand_number(optarg, &recsize)) 65 err(1, "Couldn't parse -l argument"); 66 break; 67 case 'r': 68 if (expand_number(optarg, &reccnt)) 69 err(1, "Couldn't parse -r argument"); 70 break; 71 case 's': 72 if (expand_number(optarg, &size)) 73 err(1, "Couldn't parse -s argument"); 74 break; 75 default: 76 usage(); 77 } 78 } 79 argc -= optind; 80 argv += optind; 81 if (argc != 1) 82 usage(); 83 84 if (size != 0 && reccnt != 0 && recsize != 0) { /* N N N */ 85 if (size != reccnt * recsize) 86 errx(1, "Inconsistent -l, -r and -s values"); 87 } else if (size != 0 && reccnt != 0 && recsize == 0) { /* N N Z */ 88 if (size % reccnt) 89 errx(1, 90 "Inconsistent -r and -s values (gives remainder)"); 91 recsize = size / reccnt; 92 } else if (size != 0 && reccnt == 0 && recsize != 0) { /* N Z N */ 93 if (size % recsize) 94 errx(1, "-s arg not divisible by -l arg"); 95 } else if (size != 0 && reccnt == 0 && recsize == 0) { /* N Z Z */ 96 recsize = DEF_RECSIZE; 97 if (size % recsize) 98 errx(1, "-s arg not divisible by %jd", recsize); 99 } else if (size == 0 && reccnt != 0 && recsize != 0) { /* Z N N */ 100 size = reccnt * recsize; 101 } else if (size == 0 && reccnt != 0 && recsize == 0) { /* Z N Z */ 102 recsize = DEF_RECSIZE; 103 size = reccnt * recsize; 104 } else if (size == 0 && reccnt == 0 && recsize != 0) { /* Z Z N */ 105 size = DEF_RECCNT * recsize; 106 } else if (size == 0 && reccnt == 0 && recsize == 0) { /* Z Z Z */ 107 recsize = DEF_RECSIZE; 108 size = DEF_RECCNT * recsize; 109 } 110 111 s = fifolog_create(argv[0], size, recsize); 112 if (s == NULL) 113 return (0); 114 err(1, "%s", s); 115 } 116