Line | Source | Count |
1 | | - |
2 | | - |
3 | | - |
4 | | - |
5 | | - |
6 | | - |
7 | | - |
8 | | - |
9 | | - |
10 | | - |
11 | | - |
12 | | - |
13 | | - |
14 | | - |
15 | | - |
16 | | - |
17 | | - |
18 | | - |
19 | #include <config.h> | - |
20 | | - |
21 | | - |
22 | #ifdef SAFE_WRITE | - |
23 | # include "safe-write.h" | - |
24 | #else | - |
25 | # include "safe-read.h" | - |
26 | #endif | - |
27 | | - |
28 | | - |
29 | #include <sys/types.h> | - |
30 | #include <unistd.h> | - |
31 | | - |
32 | #include <errno.h> | - |
33 | | - |
34 | #ifdef EINTR | - |
35 | # define IS_EINTR(x) ((x) == EINTR) | - |
36 | #else | - |
37 | # define IS_EINTR(x) 0 | - |
38 | #endif | - |
39 | | - |
40 | #include <limits.h> | - |
41 | | - |
42 | #ifdef SAFE_WRITE | - |
43 | # define safe_rw safe_write | - |
44 | # define rw write | - |
45 | #else | - |
46 | # define safe_rw safe_read | - |
47 | # define rw read | - |
48 | # undef const | - |
49 | # define const /* empty */ | - |
50 | #endif | - |
51 | | - |
52 | | - |
53 | | - |
54 | | - |
55 | size_t | - |
56 | safe_rw (int fd, void const *buf, size_t count) | - |
57 | { | - |
58 | | - |
59 | | - |
60 | | - |
61 | | - |
62 | enum { BUGGY_READ_MAXIMUM = INT_MAX & ~8191 }; | - |
63 | | - |
64 | for (;;) | - |
65 | { | - |
66 | ssize_t result = rw (fd, buf, count); | - |
67 | | - |
68 | if (0 <= result)TRUE | evaluated 110726 times by 14 testsEvaluated by:- cat
- cp
- csplit
- factor
- ginstall
- head
- mv
- split
- sum
- tac
- tail
- tr
- wc
- yes
| FALSE | evaluated 168 times by 5 tests |
| 168-110726 |
69 | return result;executed 110726 times by 14 tests: return result; Executed by:- cat
- cp
- csplit
- factor
- ginstall
- head
- mv
- split
- sum
- tac
- tail
- tr
- wc
- yes
| 110726 |
70 | else if (IS_EINTR (errno))TRUE | never evaluated | FALSE | evaluated 168 times by 5 tests |
| 0-168 |
71 | continue; never executed: continue; | 0 |
72 | else if (errno == EINVAL && BUGGY_READ_MAXIMUM < count)TRUE | evaluated 57 times by 1 test | FALSE | evaluated 111 times by 5 tests |
TRUE | never evaluated | FALSE | evaluated 57 times by 1 test |
| 0-111 |
73 | count = BUGGY_READ_MAXIMUM; never executed: count = BUGGY_READ_MAXIMUM; | 0 |
74 | else | - |
75 | return result;executed 168 times by 5 tests: return result; | 168 |
76 | } | - |
77 | } never executed: end of block | 0 |
| | |