1/*
2 * Copyright (c) 2004-2005 Todd C. Miller <Todd.Miller@courtesan.com>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <config.h>
18
19#include <sys/types.h>
20
21#include <errno.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <string.h>
25
26#include "missing.h"
27#include "error.h"
28
29static void _warning	__P((int, const char *, va_list));
30       void cleanup	__P((int));
31
32void
33#ifdef __STDC__
34error(int eval, const char *fmt, ...)
35#else
36error(eval, fmt, va_alist)
37	int eval;
38	const char *fmt;
39	va_dcl
40#endif
41{
42	va_list ap;
43#ifdef __STDC__
44	va_start(ap, fmt);
45#else
46	va_start(ap);
47#endif
48	_warning(1, fmt, ap);
49	va_end(ap);
50	cleanup(0);
51	exit(eval);
52}
53
54void
55#ifdef __STDC__
56errorx(int eval, const char *fmt, ...)
57#else
58errorx(eval, fmt, va_alist)
59	int eval;
60	const char *fmt;
61	va_dcl
62#endif
63{
64	va_list ap;
65#ifdef __STDC__
66	va_start(ap, fmt);
67#else
68	va_start(ap);
69#endif
70	_warning(0, fmt, ap);
71	va_end(ap);
72	cleanup(0);
73	exit(eval);
74}
75
76void
77#ifdef __STDC__
78warning(const char *fmt, ...)
79#else
80warning(fmt, va_alist)
81	const char *fmt;
82	va_dcl
83#endif
84{
85	va_list ap;
86#ifdef __STDC__
87	va_start(ap, fmt);
88#else
89	va_start(ap);
90#endif
91	_warning(1, fmt, ap);
92	va_end(ap);
93}
94
95void
96#ifdef __STDC__
97warningx(const char *fmt, ...)
98#else
99warningx(fmt, va_alist)
100	const char *fmt;
101	va_dcl
102#endif
103{
104	va_list ap;
105#ifdef __STDC__
106	va_start(ap, fmt);
107#else
108	va_start(ap);
109#endif
110	_warning(0, fmt, ap);
111	va_end(ap);
112}
113
114static void
115_warning(use_errno, fmt, ap)
116	int use_errno;
117	const char *fmt;
118	va_list ap;
119{
120	int serrno = errno;
121
122	fputs(getprogname(), stderr);
123	if (fmt != NULL) {
124		fputs(": ", stderr);
125		vfprintf(stderr, fmt, ap);
126	}
127	if (use_errno) {
128	    fputs(": ", stderr);
129	    fputs(strerror(serrno), stderr);
130	}
131	putc('\n', stderr);
132}
133