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author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-11-28 00:59:27 +0530 |
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committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2012-11-28 01:00:50 +0530 |
commit | de2fd463b1c0310d75084b6d774fb974075a4ad9 (patch) | |
tree | d51bae43dd28baf8aa9dd591e5195bd938f89482 /libio/tst-fwrite-error.c | |
parent | c515fb5148f1d81d5f7736825e14c7502c15432a (diff) | |
download | glibc-de2fd463b1c0310d75084b6d774fb974075a4ad9.zip glibc-de2fd463b1c0310d75084b6d774fb974075a4ad9.tar.gz glibc-de2fd463b1c0310d75084b6d774fb974075a4ad9.tar.bz2 |
Make fwrite return 0 on EOF
Diffstat (limited to 'libio/tst-fwrite-error.c')
-rw-r--r-- | libio/tst-fwrite-error.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libio/tst-fwrite-error.c b/libio/tst-fwrite-error.c new file mode 100644 index 0000000..3c0cf49 --- /dev/null +++ b/libio/tst-fwrite-error.c @@ -0,0 +1,66 @@ +/* Test of fwrite() function, adapted from gnulib-tests in grep. + Copyright (C) 2011-2012 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdio.h> + +static int +do_test (void) +{ + char tmpl[] = "/tmp/tst-fwrite-error.XXXXXX"; + int fd = mkstemp (tmpl); + if (fd == -1) + { + printf ("mkstemp failed with errno %d\n", errno); + return 1; + } + FILE *fp = fdopen (fd, "w"); + if (fp == NULL) + { + printf ("fdopen failed with errno %d\n", errno); + return 1; + } + + char buf[5] = "world"; + setvbuf (fp, NULL, _IONBF, 0); + close (fd); + unlink (tmpl); + errno = 0; + + int ret = fwrite (buf, 1, sizeof (buf), fp); + if (ret != 0) + { + printf ("fwrite returned %d\n", ret); + return 1; + } + if (errno != EBADF) + { + printf ("Errno is not EBADF: %d\n", errno); + return 1; + } + if (ferror (fp) == 0) + { + printf ("ferror not set\n"); + return 1; + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |