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/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <unistd.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>
#include <time.h>
#include <stdint.h>
#include <math.h>
#include "fstest.h"
#include "pmacros.h"
/*
* Test if the successful call works as expect
*/
static void link_test01 (void)
{
char *name0 = "t0";
char *name1 = "t1";
char *name2 = "t2";
int status;
int fd;
mode_t mode = 0644;
struct stat statbuf;
puts ("link creates hardlinks");
fd = creat (name0, mode);
status = close (fd);
rtems_test_assert (status == 0);
status = stat (name0, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (statbuf.st_nlink == 1);
puts ("test if the stat is the same");
status = link (name0, name1);
rtems_test_assert (status == 0);
status = stat (name0, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 2);
status = stat (name1, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 2);
/*
* link the file and check the nlink
*/
status = link (name1, name2);
rtems_test_assert (status == 0);
status = stat (name0, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 3);
status = stat (name1, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 3);
status = stat (name2, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 3);
/*
* call chmod and chown and test.
*/
puts ("chmod and chown");
chown (name1, 65534, 65533);
status = stat (name0, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 3);
rtems_test_assert (statbuf.st_uid = 65534);
rtems_test_assert (statbuf.st_gid = 65533);
status = stat (name1, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 3);
rtems_test_assert (statbuf.st_uid = 65534);
rtems_test_assert (statbuf.st_gid = 65533);
status = stat (name2, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 3);
rtems_test_assert (statbuf.st_uid = 65534);
rtems_test_assert (statbuf.st_gid = 65533);
/*
*
* unlink then test if the nlink changes
*/
puts ("unlink then stat the file ");
status = unlink (name0);
rtems_test_assert (status == 0);
status = stat (name0, &statbuf);
rtems_test_assert (status == -1);
rtems_test_assert (errno = ENOENT);
status = stat (name1, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 2);
status = stat (name2, &statbuf);
rtems_test_assert (status == 0);
rtems_test_assert (S_ISREG (statbuf.st_mode));
rtems_test_assert (statbuf.st_nlink == 2);
status = unlink (name1);
rtems_test_assert (status == 0);
status = unlink (name2);
rtems_test_assert (status == 0);
}
void test (void)
{
puts ("\n\n*** LINK TEST ***");
link_test01 ();
puts ("*** END OF LINK TEST ***");
}
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