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Fei Jie7a158a12016-04-06 14:18:48 +08001#include "tests.h"
2#include <sys/syscall.h>
3
4#ifdef __NR_linkat
5
Fei Jie7a158a12016-04-06 14:18:48 +08006# include <stdio.h>
7# include <unistd.h>
8
9int
10main(void)
11{
12 static const char sample_1[] = "linkat_sample_old";
13 static const char sample_2[] = "linkat_sample_new";
14 const long fd_old = (long) 0xdeadbeefffffffff;
15 const long fd_new = (long) 0xdeadbeeffffffffe;
16
Dmitry V. Levin5c62af02016-04-21 21:00:18 +000017 long rc = syscall(__NR_linkat, fd_old, sample_1, fd_new, sample_2, 0);
18 printf("linkat(%d, \"%s\", %d, \"%s\", 0) = %ld %s (%m)\n",
19 (int) fd_old, sample_1, (int) fd_new, sample_2,
20 rc, errno2name());
Fei Jie7a158a12016-04-06 14:18:48 +080021
Dmitry V. Levin867c1cd2016-04-07 00:31:44 +000022 rc = syscall(__NR_linkat, -100, sample_1, -100, sample_2, -1L);
Dmitry V. Levin5c62af02016-04-21 21:00:18 +000023 printf("linkat(%s, \"%s\", %s, \"%s\", %s) = %ld %s (%m)\n",
Dmitry V. Levin867c1cd2016-04-07 00:31:44 +000024 "AT_FDCWD", sample_1, "AT_FDCWD", sample_2,
25 "AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW"
26 "|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff",
Dmitry V. Levin9f6611b2016-04-21 17:49:32 +000027 rc, errno2name());
Dmitry V. Levin867c1cd2016-04-07 00:31:44 +000028
Fei Jie7a158a12016-04-06 14:18:48 +080029 puts("+++ exited with 0 +++");
30 return 0;
31}
32
33#else
34
35SKIP_MAIN_UNDEFINED("__NR_linkat")
36
37#endif