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de2fd463 | 1 | /* Test of fwrite() function, adapted from gnulib-tests in grep. |
04277e02 | 2 | Copyright (C) 2011-2019 Free Software Foundation, Inc. |
de2fd463 SP |
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> | |
ceaa9889 | 21 | #include <stdlib.h> |
de2fd463 SP |
22 | |
23 | static int | |
24 | do_test (void) | |
25 | { | |
26 | char tmpl[] = "/tmp/tst-fwrite-error.XXXXXX"; | |
27 | int fd = mkstemp (tmpl); | |
28 | if (fd == -1) | |
29 | { | |
30 | printf ("mkstemp failed with errno %d\n", errno); | |
31 | return 1; | |
32 | } | |
33 | FILE *fp = fdopen (fd, "w"); | |
34 | if (fp == NULL) | |
35 | { | |
36 | printf ("fdopen failed with errno %d\n", errno); | |
37 | return 1; | |
38 | } | |
39 | ||
5cb26d0a | 40 | char buf[] = "world"; |
de2fd463 SP |
41 | setvbuf (fp, NULL, _IONBF, 0); |
42 | close (fd); | |
43 | unlink (tmpl); | |
44 | errno = 0; | |
45 | ||
46 | int ret = fwrite (buf, 1, sizeof (buf), fp); | |
47 | if (ret != 0) | |
48 | { | |
49 | printf ("fwrite returned %d\n", ret); | |
50 | return 1; | |
51 | } | |
52 | if (errno != EBADF) | |
53 | { | |
54 | printf ("Errno is not EBADF: %d\n", errno); | |
55 | return 1; | |
56 | } | |
57 | if (ferror (fp) == 0) | |
58 | { | |
59 | printf ("ferror not set\n"); | |
60 | return 1; | |
61 | } | |
62 | ||
63 | return 0; | |
64 | } | |
65 | ||
66 | #define TEST_FUNCTION do_test () | |
67 | #include "../test-skeleton.c" |