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#ifdef HAVE_STDARG_H
29#include <stdarg.h>
30#endif
31#include <stdio.h>
32#ifdef HAVE_STDLIB_H
33#include <stdlib.h>
34#endif
35#ifdef HAVE_STRING_H
36#include <string.h>
37#endif
38
39#include "err.h"
40
41static void lafe_vwarnc(int, const char *, va_list) __LA_PRINTFLIKE(2, 0);
42
43static const char *lafe_progname;
44
45const char *
46lafe_getprogname(void)
47{
48
49	return lafe_progname;
50}
51
52void
53lafe_setprogname(const char *name, const char *defaultname)
54{
55
56	if (name == NULL)
57		name = defaultname;
58#if defined(_WIN32) && !defined(__CYGWIN__)
59	lafe_progname = strrchr(name, '\\');
60	if (strrchr(name, '/') > lafe_progname)
61#endif
62	lafe_progname = strrchr(name, '/');
63	if (lafe_progname != NULL)
64		lafe_progname++;
65	else
66		lafe_progname = name;
67}
68
69static void
70lafe_vwarnc(int code, const char *fmt, va_list ap)
71{
72	fprintf(stderr, "%s: ", lafe_progname);
73	vfprintf(stderr, fmt, ap);
74	if (code != 0)
75		fprintf(stderr, ": %s", strerror(code));
76	fprintf(stderr, "\n");
77}
78
79void
80lafe_warnc(int code, const char *fmt, ...)
81{
82	va_list ap;
83
84	va_start(ap, fmt);
85	lafe_vwarnc(code, fmt, ap);
86	va_end(ap);
87}
88
89void
90lafe_errc(int eval, int code, const char *fmt, ...)
91{
92	va_list ap;
93
94	va_start(ap, fmt);
95	lafe_vwarnc(code, fmt, ap);
96	va_end(ap);
97	exit(eval);
98}
99