This source file includes following definitions.
- test_mode
- main
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19 #include <config.h>
20
21 #include "fbufmode.h"
22
23 #include <stdio.h>
24
25 #include "macros.h"
26
27 #define TESTFILE "t-fbufmode.tmp"
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30
31
32 static int
33 test_mode (int mode)
34 {
35 FILE *fp;
36 char buf[5];
37
38
39 fp = fopen (TESTFILE, "r");
40
41 switch (mode)
42 {
43 case _IONBF:
44 ASSERT (setvbuf (fp, NULL, _IONBF, 0) == 0);
45 ASSERT (fbufmode (fp) == _IONBF);
46 break;
47
48 case _IOLBF:
49 ASSERT (setvbuf (fp, buf, _IOLBF, 5) == 0);
50
51 ASSERT (fbufmode (fp) == _IOLBF
52 || fbufmode (fp) == _IOFBF);
53 break;
54
55 case _IOFBF:
56 ASSERT (setvbuf (fp, buf, _IOFBF, 5) == 0);
57 ASSERT (fbufmode (fp) == _IOFBF);
58 break;
59
60 default:
61 break;
62 }
63
64 fclose (fp);
65
66 return 0;
67 }
68
69 int
70 main ()
71 {
72 int ret;
73
74
75 {
76 FILE *fp;
77
78 fp = fopen (TESTFILE, "w");
79 if (fp == NULL)
80 goto skip;
81 if (fwrite ("foobarsh", 1, 8, fp) < 8)
82 goto skip;
83 if (fclose (fp))
84 goto skip;
85 }
86
87 ret = test_mode (_IONBF);
88 if (ret != 0)
89 goto fail;
90
91 ret = test_mode (_IOLBF);
92 if (ret != 0)
93 goto fail;
94
95 ret = test_mode (_IOFBF);
96 if (ret != 0)
97 goto fail;
98
99 return 0;
100
101 fail:
102 return ret;
103
104 skip:
105 fprintf (stderr, "Skipping test: file operations failed.\n");
106 return 77;
107 }