xref: /aosp_15_r20/external/strace/tests-mx32/linkat.c (revision cf84ac9a129d8ea9952db616b4e9b904c4bdde56)
1*cf84ac9aSAndroid Build Coastguard Worker #include "tests.h"
2*cf84ac9aSAndroid Build Coastguard Worker #include <asm/unistd.h>
3*cf84ac9aSAndroid Build Coastguard Worker 
4*cf84ac9aSAndroid Build Coastguard Worker #ifdef __NR_linkat
5*cf84ac9aSAndroid Build Coastguard Worker 
6*cf84ac9aSAndroid Build Coastguard Worker # include <stdio.h>
7*cf84ac9aSAndroid Build Coastguard Worker # include <unistd.h>
8*cf84ac9aSAndroid Build Coastguard Worker 
9*cf84ac9aSAndroid Build Coastguard Worker int
main(void)10*cf84ac9aSAndroid Build Coastguard Worker main(void)
11*cf84ac9aSAndroid Build Coastguard Worker {
12*cf84ac9aSAndroid Build Coastguard Worker 	static const char sample_1[] = "linkat_sample_old";
13*cf84ac9aSAndroid Build Coastguard Worker 	static const char sample_2[] = "linkat_sample_new";
14*cf84ac9aSAndroid Build Coastguard Worker 	const long fd_old = (long) 0xdeadbeefffffffffULL;
15*cf84ac9aSAndroid Build Coastguard Worker 	const long fd_new = (long) 0xdeadbeeffffffffeULL;
16*cf84ac9aSAndroid Build Coastguard Worker 
17*cf84ac9aSAndroid Build Coastguard Worker 	long rc = syscall(__NR_linkat, fd_old, sample_1, fd_new, sample_2, 0);
18*cf84ac9aSAndroid Build Coastguard Worker 	printf("linkat(%d, \"%s\", %d, \"%s\", 0) = %ld %s (%m)\n",
19*cf84ac9aSAndroid Build Coastguard Worker 	       (int) fd_old, sample_1, (int) fd_new, sample_2,
20*cf84ac9aSAndroid Build Coastguard Worker 	       rc, errno2name());
21*cf84ac9aSAndroid Build Coastguard Worker 
22*cf84ac9aSAndroid Build Coastguard Worker 	rc = syscall(__NR_linkat, -100, sample_1, -100, sample_2, -1L);
23*cf84ac9aSAndroid Build Coastguard Worker 	printf("linkat(%s, \"%s\", %s, \"%s\", %s) = %ld %s (%m)\n",
24*cf84ac9aSAndroid Build Coastguard Worker 	       "AT_FDCWD", sample_1, "AT_FDCWD", sample_2,
25*cf84ac9aSAndroid Build Coastguard Worker 	       "AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW"
26*cf84ac9aSAndroid Build Coastguard Worker 	       "|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff",
27*cf84ac9aSAndroid Build Coastguard Worker 	       rc, errno2name());
28*cf84ac9aSAndroid Build Coastguard Worker 
29*cf84ac9aSAndroid Build Coastguard Worker 	puts("+++ exited with 0 +++");
30*cf84ac9aSAndroid Build Coastguard Worker 	return 0;
31*cf84ac9aSAndroid Build Coastguard Worker }
32*cf84ac9aSAndroid Build Coastguard Worker 
33*cf84ac9aSAndroid Build Coastguard Worker #else
34*cf84ac9aSAndroid Build Coastguard Worker 
35*cf84ac9aSAndroid Build Coastguard Worker SKIP_MAIN_UNDEFINED("__NR_linkat")
36*cf84ac9aSAndroid Build Coastguard Worker 
37*cf84ac9aSAndroid Build Coastguard Worker #endif
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