tests: make test executables invocable outside current work directory

Most of test executables were ready for the upcoming change,
this change prepares all the rest.

* tests/getdents.c (main): Use fixed name for the sample directory.
* tests/getdents64.c (main): Likewise.
* tests/readdir.c (main): Likewise.
* tests/mknod.c (sample): Change to a pointer.
(main): Use av[0] as a sample.
* tests/symlink.c (main): Use av[0] as a linkpath.
* tests/umode_t.c (sample): Change to a pointer.
(test_syscall): Fix expected output.
(main): Use av[0] as a sample.

6 files changed, 18 insertions, 24 deletions

diff --git a/tests/getdents.c b/tests/getdents.c
index b787c837b..7ee7d77a8 100644
--- a/tests/getdents.c
+++ b/tests/getdents.c
@@ -92,12 +92,10 @@ print_dirent(const kernel_dirent *d)
 }
 
 int
-main(int ac, const char **av)
+main(void)
 {
-	char *dname;
+	static const char dname[] = "getdents.test.tmp.dir";
 
-	assert(ac == 1);
-	assert(asprintf(&dname, "%s.test.tmp.dir", av[0]) > 0);
 	assert(!mkdir(dname, 0700));
 	assert(!chdir(dname));
 	(void) close(0);
diff --git a/tests/getdents64.c b/tests/getdents64.c
index 9da2a23c2..0e7085b71 100644
--- a/tests/getdents64.c
+++ b/tests/getdents64.c
@@ -98,12 +98,10 @@ print_dirent(const kernel_dirent64 *d)
 }
 
 int
-main(int ac, const char **av)
+main(void)
 {
-	char *dname;
+	static const char dname[] = "getdents64.test.tmp.dir";
 
-	assert(ac == 1);
-	assert(asprintf(&dname, "%s.test.tmp.dir", av[0]) > 0);
 	assert(!mkdir(dname, 0700));
 	assert(!chdir(dname));
 	(void) close(0);
diff --git a/tests/mknod.c b/tests/mknod.c
index 4cc1c5cb7..b38714990 100644
--- a/tests/mknod.c
+++ b/tests/mknod.c
@@ -8,7 +8,7 @@
 # include <sys/sysmacros.h>
 # include <unistd.h>
 
-static const char sample[] = "mknod";
+static const char *sample;
 
 static long
 call_mknod(unsigned short mode, unsigned long dev)
@@ -18,9 +18,10 @@ call_mknod(unsigned short mode, unsigned long dev)
 }
 
 int
-main(void)
+main(int ac, char **av)
 {
 	unsigned long dev = (unsigned long) 0xdeadbeefbadc0dedULL;
+	sample = av[0];
 
 	long rc = call_mknod(0, dev);
 	printf("mknod(\"%s\", 000) = %ld %s (%m)\n",
diff --git a/tests/readdir.c b/tests/readdir.c
index 8c4836200..6431f5a91 100644
--- a/tests/readdir.c
+++ b/tests/readdir.c
@@ -58,9 +58,9 @@ static const char qname[] =
 	"A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nZ";
 
 int
-main(int ac, const char **av)
+main(void)
 {
-	char *dname;
+	static const char dname[] = "readdir.test.tmp.dir";
 	struct {
 		unsigned long   d_ino;
 		unsigned long   d_off;
@@ -69,8 +69,6 @@ main(int ac, const char **av)
 	} e;
 	int rc;
 
-	assert(ac == 1);
-	assert(asprintf(&dname, "%s.test.tmp.dir", av[0]) > 0);
 	assert(!mkdir(dname, 0700));
 	assert(!chdir(dname));
 	(void) close(0);
diff --git a/tests/symlink.c b/tests/symlink.c
index 72cb49085..3e01cf211 100644
--- a/tests/symlink.c
+++ b/tests/symlink.c
@@ -7,14 +7,12 @@
 # include <unistd.h>
 
 int
-main(void)
+main(int ac, char **av)
 {
-	static const char sample_1[] = "symlink_new";
-	static const char sample_2[] = "symlink";
+	static const char sample[] = "symlink.sample";
 
-	long rc = syscall(__NR_symlink, sample_1, sample_2);
-	printf("symlink(\"%s\", \"%s\") = %ld %s (%m)\n",
-	       sample_1, sample_2, rc, errno2name());
+	long rc = syscall(__NR_symlink, sample, av[0]);
+	printf("symlink(\"%s\", \"%s\") = %s\n", sample, av[0], sprintrc(rc));
 
 	puts("+++ exited with 0 +++");
 	return 0;
diff --git a/tests/umode_t.c b/tests/umode_t.c
index 5041638ee..0fb9a513e 100644
--- a/tests/umode_t.c
+++ b/tests/umode_t.c
@@ -38,7 +38,7 @@
 # define TEST_SYSCALL_PREFIX_STR ""
 #endif
 
-static const char sample[] = TEST_SYSCALL_STR;
+static const char *sample;
 
 static void
 test_syscall(unsigned short mode)
@@ -49,17 +49,18 @@ test_syscall(unsigned short mode)
 
 	if (mode <= 07)
 		printf("%s(%s\"%s\", 00%d) = %ld %s (%m)\n",
-		       sample, TEST_SYSCALL_PREFIX_STR,
+		       TEST_SYSCALL_STR, TEST_SYSCALL_PREFIX_STR,
 		       sample, (int) mode, rc, errno2name());
 	else
 		printf("%s(%s\"%s\", %#03ho) = %ld %s (%m)\n",
-		       sample, TEST_SYSCALL_PREFIX_STR,
+		       TEST_SYSCALL_STR, TEST_SYSCALL_PREFIX_STR,
 		       sample, mode, rc, errno2name());
 }
 
 int
-main(void)
+main(int ac, char **av)
 {
+	sample = av[0];
 	test_syscall(0);
 	test_syscall(0xffff);
 	test_syscall(06);