1 /** @file
2 Implement the warning and error output messages.
3
4 Copyright (c) 2011, Intel Corporation
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 * Copyright (c) 1994 Michael L. Hitch
14 * All rights reserved.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. All advertising materials mentioning features or use of this software
25 * must display the following acknowledgement:
26 * This product includes software developed by Michael L. Hitch.
27 * 4. The name of the author may not be used to endorse or promote products
28 * derived from this software without specific prior written permission
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
39 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 **/
41 #include <LibConfig.h>
42
43 #include <stdarg.h>
44 #include <stdio.h>
45 #include <errno.h>
46 #include <string.h>
47 #include <stdlib.h>
48
49 static void
_Vdomessage(int doerrno,const char * fmt,va_list args)50 _Vdomessage(int doerrno, const char *fmt, va_list args)
51 {
52 fprintf(stderr, "%s: ", getprogname());
53 if (fmt) {
54 vfprintf(stderr, fmt, args);
55 fprintf(stderr, ": ");
56 }
57 if (doerrno && errno < EMAXERRORVAL) {
58 fprintf(stderr, "%s", strerror(errno));
59 }
60 fprintf(stderr, "\n");
61 }
62
63 void
err(int eval,const char * fmt,...)64 err(int eval, const char *fmt, ...)
65 {
66 va_list ap;
67 va_start(ap, fmt);
68 _Vdomessage(1, fmt, ap);
69 va_end(ap);
70 exit(eval);
71 }
72
73 void
errx(int eval,const char * fmt,...)74 errx(int eval, const char *fmt, ...)
75 {
76 va_list ap;
77 va_start(ap, fmt);
78 _Vdomessage(0, fmt, ap);
79 va_end(ap);
80 exit(eval);
81 }
82
83 void
warn(const char * fmt,...)84 warn(const char *fmt, ...)
85 {
86 va_list ap;
87 va_start(ap, fmt);
88 _Vdomessage(1, fmt, ap);
89 va_end(ap);
90 }
91
92 void
warnx(const char * fmt,...)93 warnx(const char *fmt, ...)
94 {
95 va_list ap;
96 va_start(ap, fmt);
97 _Vdomessage(0, fmt, ap);
98 va_end(ap);
99 }
100