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: stable/12/usr.sbin/fifolog/fifolog_create/fifolog_create.c 326276 2017-11-27 15:37:16Z pfg $
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
usage(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
main(int argc,char * const * argv)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