tests: Move syscall setuid32 test to own executable

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

3 files changed, 93 insertions, 16 deletions

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index c04d788..6092fe2 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -68,6 +68,7 @@ set(UWRAP_TESTS
 if (HAVE_LINUX_32BIT_SYSCALLS)
     set(UWRAP_TESTS
         ${UWRAP_TESTS}
+        test_syscall_setuid32
         test_syscall_uid32
         test_syscall_gid32)
 endif (HAVE_LINUX_32BIT_SYSCALLS)
diff --git a/tests/test_syscall_setuid32.c b/tests/test_syscall_setuid32.c
new file mode 100644
index 0000000..e7532f7
--- /dev/null
+++ b/tests/test_syscall_setuid32.c
@@ -0,0 +1,92 @@
+#include "config.h"
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <pwd.h>
+
+#ifdef HAVE_SYS_SYSCALL_H
+#include <sys/syscall.h>
+#endif
+#ifdef HAVE_SYSCALL_H
+#include <syscall.h>
+#endif
+
+static void test_uwrap_syscall_setuid32(void **state)
+{
+	long int rc;
+	uid_t u;
+#ifdef HAVE_GETRESUID
+	uid_t cp_ruid, cp_euid, cp_suid;
+#endif
+
+	(void) state; /* unused */
+
+#ifdef HAVE_GETRESUID
+	cp_ruid = cp_euid = cp_suid = -1;
+	rc = getresuid(&cp_ruid, &cp_euid, &cp_suid);
+	assert_return_code(rc, errno);
+	assert_int_equal(cp_ruid, 0);
+	assert_int_equal(cp_euid, 0);
+	assert_int_equal(cp_suid, 0);
+#endif
+
+#ifndef BSD
+	/* BSD sets 0xFFFFFF as the UID number in this case */
+	rc = syscall(SYS_setuid32, -1);
+	assert_int_equal(rc, -1);
+	assert_int_equal(errno, EINVAL);
+#endif
+
+	u = getuid();
+	assert_int_equal(u, 0x0);
+
+#ifdef HAVE_GETRESUID
+	cp_ruid = cp_euid = cp_suid = -1;
+	rc = getresuid(&cp_ruid, &cp_euid, &cp_suid);
+	assert_return_code(rc, errno);
+	assert_int_equal(cp_ruid, 0);
+	assert_int_equal(cp_euid, 0);
+	assert_int_equal(cp_suid, 0);
+#endif
+
+	rc = syscall(SYS_setuid32, 0x5555);
+	assert_return_code(rc, errno);
+
+#ifdef HAVE_GETRESUID
+	cp_ruid = cp_euid = cp_suid = -1;
+	rc = getresuid(&cp_ruid, &cp_euid, &cp_suid);
+	assert_return_code(rc, errno);
+	assert_int_equal(cp_ruid, 0x5555);
+	assert_int_equal(cp_euid, 0x5555);
+	assert_int_equal(cp_suid, 0x5555);
+#endif
+
+	u = getuid();
+	assert_int_equal(u, 0x5555);
+
+	u = geteuid();
+	assert_int_equal(u, 0x5555);
+
+	rc = syscall(SYS_setuid32, 0x0);
+	assert_int_equal(rc, -1);
+	assert_int_equal(errno, EPERM);
+}
+
+int main(void) {
+	int rc;
+
+	const struct CMUnitTest uwrap_tests[] = {
+		cmocka_unit_test(test_uwrap_syscall_setuid32),
+	};
+
+	rc = cmocka_run_group_tests(uwrap_tests, NULL, NULL);
+
+	return rc;
+}
diff --git a/tests/test_syscall_uid32.c b/tests/test_syscall_uid32.c
index 0e6a585..dd64a25 100644
--- a/tests/test_syscall_uid32.c
+++ b/tests/test_syscall_uid32.c
@@ -18,21 +18,6 @@
 #include <syscall.h>
 #endif
 
-static void test_uwrap_syscall_setuid32(void **state)
-{
-	long int rc;
-	uid_t u;
-
-	(void) state; /* unused */
-
-	rc = syscall(SYS_setuid32, 1);
-	assert_int_equal(rc, 0);
-
-	u = getuid();
-	assert_int_equal(u, 1);
-	assert_int_equal(u, syscall(SYS_getuid32));
-}
-
 static void test_uwrap_syscall_setreuid32(void **state)
 {
 	long int rc;
@@ -90,7 +75,6 @@ int main(void) {
 	int rc;
 
 	const struct CMUnitTest uwrap_tests[] = {
-		cmocka_unit_test(test_uwrap_syscall_setuid32),
 		cmocka_unit_test(test_uwrap_syscall_setreuid32),
 		cmocka_unit_test(test_uwrap_syscall_setresuid32),
 	};