1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/* $Id: err.c,v 1.3 2001/08/10 15:54:56 sandro Exp $ */
/*
* Copyright (c) 1997-2001 Sandro Sigala. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* 4.4BSD err(), warn() functions reimplementation.
*/
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "err.h"
/* The name of the running program. */
extern char *progname;
void err(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verr(status, fmt, ap);
va_end(ap);
}
void verr(int status, const char *fmt, va_list ap)
{
int olderrno = errno;
fprintf(stderr, "%s: ", progname);
if (fmt != NULL) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": ");
}
fprintf(stderr, "%s\n", strerror(olderrno));
exit(status);
}
void errx(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verrx(status, fmt, ap);
va_end(ap);
}
void verrx(int status, const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", progname);
if (fmt != NULL)
vfprintf(stderr, fmt, ap);
fputc('\n', stderr);
exit(status);
}
void warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarn(fmt, ap);
va_end(ap);
}
void vwarn(const char *fmt, va_list ap)
{
int olderrno = errno;
fprintf(stderr, "%s: ", progname);
if (fmt != NULL) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": ");
}
fprintf(stderr, "%s\n", strerror(olderrno));
}
void warnx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnx(fmt, ap);
va_end(ap);
}
void vwarnx(const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", progname);
if (fmt != NULL)
vfprintf(stderr, fmt, ap);
fputc('\n', stderr);
}
|
