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
|
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <netpbm/pm.h>
#include "stdio_nofail.h"
size_t
fread_nofail(void * const ptr,
size_t const size,
size_t const nmemb,
FILE * const streamP) {
size_t rc;
rc = fread(ptr, size, nmemb, streamP);
if (rc < 0)
pm_error("File read failed. Errno=%d (%s)", errno, strerror(errno));
return rc;
}
int
fgetc_nofail(FILE * streamP) {
int rc;
rc = fgetc(streamP);
if (rc < 0)
pm_error("File read failed. Errno=%d (%s)", errno, strerror(errno));
return rc;
}
int
fseek_nofail(FILE * const streamP,
long const offset,
int const whence) {
int rc;
rc = fseek(streamP, offset, whence);
if (rc < 0)
pm_error("File seek failed. Errno=%d (%s)", errno, strerror(errno));
return rc;
}
long
ftell_nofail(FILE * const streamP) {
long rc;
rc = ftell(streamP);
if (rc < 0)
pm_error("File position query failed. Errno=%d (%s)",
errno, strerror(errno));
return rc;
}
char *
fgets_nofail(char * const s,
int const size,
FILE * const streamP) {
char * rc;
rc = fgets(s, size, streamP);
if (ferror(streamP))
pm_error("File read failed. Errno=%d (%s)", errno, strerror(errno));
return rc;
}
|