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
43static void
44usage(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
51int
52main(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