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
|
/****************************************************************************
** File: error.c
**
** Author: Mike Borella
**
** Comments: Try to gracefully handle errors.
**
*****************************************************************************/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#ifdef DHAVE_CONFIG_H
#include "config.h"
#endif
/*
* This avoids a warning with glibc compilation
*/
#ifndef errno
extern int errno;
#endif
/*----------------------------------------------------------------------------
**
** Function: my_strerror()
**
** Comments: Use strerror() if this system supports it. Roll our own otherwise.
**
*/
char *my_strerror(int errnum)
{
#ifdef HAVE_STRERROR
return (strerror(errnum));
#else
extern int sys_nerr;
static char ebuf[20];
if ((int) errnum < sys_nerr)
return ((char *) sys_errlist[errnum]);
(void) sprintf(ebuf, "Unknown error: %d", errnum);
return(ebuf);
#endif
}
/*----------------------------------------------------------------------------
**
** syserr()
**
** Use only when a system call fails. Not for general errors.
**
**----------------------------------------------------------------------------
*/
void syserr(char *fmt, ...)
{
va_list args;
char *my_strerror(int);
va_start(args,fmt);
fprintf(stderr,"ERROR: ");
vfprintf(stderr, fmt, args);
fprintf(stderr," (%d ", errno);
va_end(args);
fprintf(stderr, "%s)\n", my_strerror(errno));
exit(1);
}
/*----------------------------------------------------------------------------
**
** ftlerr()
**
** General fatal error.
**
**----------------------------------------------------------------------------
*/
void ftlerr(char *fmt, ...)
{
va_list args;
va_start(args,fmt);
fprintf(stderr,"ERROR: ");
vfprintf(stderr, fmt, args);
va_end(args);
fprintf(stderr, "\n");
exit(1);
}
|
