1/*-
2 * Copyright (c) 2003-2007 Tim Kientzle
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 *    in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "lafe_platform.h"
28__FBSDID("$FreeBSD$");
29
30#ifdef HAVE_STDARG_H
31#include <stdarg.h>
32#endif
33#include <stdio.h>
34#ifdef HAVE_STDLIB_H
35#include <stdlib.h>
36#endif
37#ifdef HAVE_STRING_H
38#include <string.h>
39#endif
40
41#include "err.h"
42
43static void lafe_vwarnc(int, const char *, va_list) __LA_PRINTFLIKE(2, 0);
44
45static const char *lafe_progname;
46
47const char *
48lafe_getprogname(void)
49{
50
51	return lafe_progname;
52}
53
54void
55lafe_setprogname(const char *name, const char *defaultname)
56{
57
58	if (name == NULL)
59		name = defaultname;
60#if defined(_WIN32) && !defined(__CYGWIN__)
61	lafe_progname = strrchr(name, '\\');
62	if (strrchr(name, '/') > lafe_progname)
63#endif
64	lafe_progname = strrchr(name, '/');
65	if (lafe_progname != NULL)
66		lafe_progname++;
67	else
68		lafe_progname = name;
69}
70
71static void
72lafe_vwarnc(int code, const char *fmt, va_list ap)
73{
74	fprintf(stderr, "%s: ", lafe_progname);
75	vfprintf(stderr, fmt, ap);
76	if (code != 0)
77		fprintf(stderr, ": %s", strerror(code));
78	fprintf(stderr, "\n");
79}
80
81void
82lafe_warnc(int code, const char *fmt, ...)
83{
84	va_list ap;
85
86	va_start(ap, fmt);
87	lafe_vwarnc(code, fmt, ap);
88	va_end(ap);
89}
90
91void
92lafe_errc(int eval, int code, const char *fmt, ...)
93{
94	va_list ap;
95
96	va_start(ap, fmt);
97	lafe_vwarnc(code, fmt, ap);
98	va_end(ap);
99	exit(eval);
100}
101