mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
/* Test if ftw function doesn't leak fds.
|
|
Copyright (C) 2003-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <fcntl.h>
|
|
#include <ftw.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
|
|
static int cb_called;
|
|
|
|
static int
|
|
cb (const char *name, const struct stat64 *st, int type)
|
|
{
|
|
return cb_called++ & 1;
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
char name[32] = "/tmp/ftwXXXXXX", *p;
|
|
int ret, i, result = 0, fd, fd1, fd2;
|
|
|
|
if (mkdtemp (name) == NULL)
|
|
{
|
|
printf ("Couldn't make temporary directory: %m\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
p = strchr (name, '\0');
|
|
strcpy (p, "/1");
|
|
if (mkdir (name, 0755) < 0)
|
|
{
|
|
printf ("Couldn't make temporary subdirectory: %m\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
*p = '\0';
|
|
|
|
ret = ftw64 (name, cb, 20);
|
|
if (ret != 1)
|
|
{
|
|
printf ("ftw64 returned %d instead of 1", ret);
|
|
result = 1;
|
|
}
|
|
|
|
fd = open (name, O_RDONLY);
|
|
if (fd < 0)
|
|
{
|
|
printf ("open failed: %m\n");
|
|
result = 1;
|
|
}
|
|
fd1 = open (name, O_RDONLY);
|
|
if (fd1 < 0)
|
|
{
|
|
printf ("open failed: %m\n");
|
|
result = 1;
|
|
}
|
|
else
|
|
close (fd1);
|
|
if (fd >= 0)
|
|
close (fd);
|
|
|
|
for (i = 0; i < 128; ++i)
|
|
{
|
|
ret = ftw64 (name, cb, 20);
|
|
if (ret != 1)
|
|
{
|
|
printf ("ftw64 returned %d instead of 1", ret);
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
fd = open (name, O_RDONLY);
|
|
if (fd < 0)
|
|
{
|
|
printf ("open failed: %m\n");
|
|
result = 1;
|
|
}
|
|
fd2 = open (name, O_RDONLY);
|
|
if (fd2 < 0)
|
|
{
|
|
printf ("open failed: %m\n");
|
|
result = 1;
|
|
}
|
|
else
|
|
close (fd2);
|
|
if (fd >= 0)
|
|
close (fd);
|
|
|
|
if (fd2 >= fd1 + 128)
|
|
{
|
|
printf ("ftw64 leaking fds: %d -> %d\n", fd1, fd2);
|
|
result = 1;
|
|
}
|
|
|
|
if (cb_called != 129 * 2)
|
|
{
|
|
printf ("callback called %d times\n", cb_called);
|
|
result = 1;
|
|
}
|
|
|
|
strcpy (p, "/1");
|
|
rmdir (name);
|
|
*p = '\0';
|
|
rmdir (name);
|
|
return result;
|
|
}
|