1/*
2 * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
3 * Copyright (c) 1992 Diomidis Spinellis.
4 * Copyright (c) 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Diomidis Spinellis of Imperial College, University of London.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/types.h>
36
37#include <err.h>
38#include <limits.h>
39#include <regex.h>
40#include <stdio.h>
41#include <stdlib.h>
42#include <string.h>
43#include <stdarg.h>
44
45#include "defs.h"
46#include "extern.h"
47
48/*
49 * Return a string for a regular expression error passed.  This is overkill,
50 * because of the silly semantics of regerror (we can never know the size of
51 * the buffer).
52 */
53char *
54strregerror(int errcode, regex_t *preg)
55{
56	static char *oe;
57	size_t s;
58
59	if (oe != NULL)
60		free(oe);
61	s = regerror(errcode, preg, NULL, 0);
62	if ((oe = malloc(s)) == NULL)
63		err(1, "malloc");
64	(void) regerror(errcode, preg, oe, s);
65	return (oe);
66}
67
68void
69fatal(const char *fmt, ...)
70{
71	va_list ap;
72
73	(void) fprintf(stderr, "%s: %lu: ", fname, linenum);
74
75	va_start(ap, fmt);
76	(void) vfprintf(stderr, fmt, ap);
77	va_end(ap);
78
79	(void) fputc('\n', stderr);
80
81	exit(1);
82}
83