1#include "config.h"
2
3#if HAVE_ERR
4
5int dummy;
6
7#else
8
9/* $Id: compat_err.c,v 1.4 2015/11/26 07:42:11 schwarze Exp $ */
10/*
11 * Copyright (c) 1993
12 *      The Regents of the University of California.  All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in the
21 *    documentation and/or other materials provided with the distribution.
22 * 3. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
39#include <errno.h>
40#include <stdarg.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44
45static void vwarni(const char *, va_list);
46static void vwarnxi(const char *, va_list);
47
48static void
49vwarnxi(const char *fmt, va_list ap)
50{
51	fprintf(stderr, "%s: ", getprogname());
52	if (fmt != NULL)
53		vfprintf(stderr, fmt, ap);
54}
55
56static void
57vwarni(const char *fmt, va_list ap)
58{
59	int sverrno;
60
61	sverrno = errno;
62	vwarnxi(fmt, ap);
63	if (fmt != NULL)
64		fputs(": ", stderr);
65	fprintf(stderr, "%s\n", strerror(sverrno));
66}
67
68void
69err(int eval, const char *fmt, ...)
70{
71	va_list ap;
72
73	va_start(ap, fmt);
74	vwarni(fmt, ap);
75	va_end(ap);
76	exit(eval);
77}
78
79void
80errx(int eval, const char *fmt, ...)
81{
82	va_list ap;
83
84	va_start(ap, fmt);
85	vwarnxi(fmt, ap);
86	va_end(ap);
87	fputc('\n', stderr);
88	exit(eval);
89}
90
91void
92warn(const char *fmt, ...)
93{
94	va_list ap;
95
96	va_start(ap, fmt);
97	vwarni(fmt, ap);
98	va_end(ap);
99}
100
101void
102warnx(const char *fmt, ...)
103{
104	va_list ap;
105
106	va_start(ap, fmt);
107	vwarnxi(fmt, ap);
108	va_end(ap);
109	fputc('\n', stderr);
110}
111
112#endif
113