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de2fd463 SP |
1 | /* Test of fwrite() function, adapted from gnulib-tests in grep. |
2 | Copyright (C) 2011-2012 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 3, or (at your option) | |
7 | any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ | |
16 | ||
17 | #include <errno.h> | |
18 | #include <fcntl.h> | |
19 | #include <unistd.h> | |
20 | #include <stdio.h> | |
21 | ||
22 | static int | |
23 | do_test (void) | |
24 | { | |
25 | char tmpl[] = "/tmp/tst-fwrite-error.XXXXXX"; | |
26 | int fd = mkstemp (tmpl); | |
27 | if (fd == -1) | |
28 | { | |
29 | printf ("mkstemp failed with errno %d\n", errno); | |
30 | return 1; | |
31 | } | |
32 | FILE *fp = fdopen (fd, "w"); | |
33 | if (fp == NULL) | |
34 | { | |
35 | printf ("fdopen failed with errno %d\n", errno); | |
36 | return 1; | |
37 | } | |
38 | ||
39 | char buf[5] = "world"; | |
40 | setvbuf (fp, NULL, _IONBF, 0); | |
41 | close (fd); | |
42 | unlink (tmpl); | |
43 | errno = 0; | |
44 | ||
45 | int ret = fwrite (buf, 1, sizeof (buf), fp); | |
46 | if (ret != 0) | |
47 | { | |
48 | printf ("fwrite returned %d\n", ret); | |
49 | return 1; | |
50 | } | |
51 | if (errno != EBADF) | |
52 | { | |
53 | printf ("Errno is not EBADF: %d\n", errno); | |
54 | return 1; | |
55 | } | |
56 | if (ferror (fp) == 0) | |
57 | { | |
58 | printf ("ferror not set\n"); | |
59 | return 1; | |
60 | } | |
61 | ||
62 | return 0; | |
63 | } | |
64 | ||
65 | #define TEST_FUNCTION do_test () | |
66 | #include "../test-skeleton.c" |