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* stdio-common/Makefile (tests): Add tst-put-error.

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* stdio-common/tst-put-error.c: New file.
	* libio/fileops.c (_IO_new_file_xsputn): If overflow fails and no more
	data would have to be written signal error.
	* libio/oldfileops.c (_IO_old_file_xsputn): Likewise.

	* libio/fileops.c (_IO_new_file_overflow): Use NULL not 0.
This commit is contained in:
Ulrich Drepper
2005-09-04 20:10:35 +00:00
parent f2cd432663
commit 34c5e4a1f1
5 changed files with 52 additions and 7 deletions
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33
stdio-common/tst-put-error.c Normal file
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#include <errno.h>
#include <error.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static int
do_test (void)
{
char tmpl[] = "/tmp/tst-put-error.XXXXXX";
int fd = mkstemp (tmpl);
if (fd == -1)
error (EXIT_FAILURE, errno, "cannot create temporary file");
FILE *fp = fdopen (fd, "w");
if (fp == NULL)
error (EXIT_FAILURE, errno, "fdopen");
setlinebuf (fp);
close (fd);
unlink ("aaa");
int n = fprintf (fp, "hello world\n");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "first fprintf succeeded");
n = fprintf (fp, "hello world\n");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "second fprintf succeeded");
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"