dup3(2): add EINVAL error number test

add EINVAL error number test

Signed-off-by Xiaoguang Wang <[email protected]>

---
 runtest/syscalls                         |   1 +
 testcases/kernel/syscalls/.gitignore     |   1 +
 testcases/kernel/syscalls/dup3/dup3_02.c | 119 +++++++++++++++++++++++++++++++
 3 files changed, 121 insertions(+)
 create mode 100644 testcases/kernel/syscalls/dup3/dup3_02.c

runtest/syscalls +1 -0

index fa01ff7..e7e8a9a 100644
@@ -118,6 +118,7 @@ dup204 dup204
 dup205 dup205
 
 dup3_01 dup3_01
+dup3_02 dup3_02
 
 epoll_create1_01 epoll_create1_01
 epoll01 epoll-ltp

testcases/kernel/syscalls/.gitignore +1 -0

index 0130a53..e100dd9 100644
@@ -96,6 +96,7 @@
 /dup2/dup204
 /dup2/dup205
 /dup3/dup3_01
+/dup3/dup3_02
 /epoll/epoll-ltp
 /epoll_create1/epoll_create1_01
 /eventfd/eventfd01

testcases/kernel/syscalls/dup3/dup3_02.c new file +101 -0

new file mode 100644
index 0000000..0394ee7
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2013 Fujitsu Ltd.
+ * Author: Xiaoguang Wang <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * Description:
+ * Verify that,
+ *  1. dup3() fails with -1 return value and sets errno to EINVAL
+ *     if flags contain an invalid value or oldfd was equal to newfd.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/types.h>
+
+#include "test.h"
+#include "usctest.h"
+#include "safe_macros.h"
+#include "linux_syscall_numbers.h"
+
+
+static void setup(void);
+static void cleanup(void);
+
+#define INVALID_FLAG	-1
+
+static struct test_case_t {
+	int oldfd;
+	int newfd;
+	int flags;
+	int exp_errno;
+} test_cases[] = {
+	{-1, -1, O_CLOEXEC, EINVAL},
+	{-1, -1, INVALID_FLAG, EINVAL}
+};
+
+char *TCID = "dup3_02";
+int TST_TOTAL = ARRAY_SIZE(test_cases);
+static int exp_enos[] = {EINVAL, 0};
+
+int main(int ac, char **av)
+{
+	int lc;
+	int i;
+
+
+	setup();
+
+	TEST_EXP_ENOS(exp_enos);
+
+	for (lc = 0; TEST_LOOPING(lc); lc++) {
+		tst_count = 0;
+
+		for (i = 0; i < TST_TOTAL; i++) {
+			TEST(ltp_syscall(__NR_dup3, test_cases[i].oldfd,
+			     test_cases[i].newfd, test_cases[i].flags));
+
+			if (TEST_RETURN != -1) {
+				tst_resm(TFAIL, "dup3 succeeded unexpectedly");
+				continue;
+			}
+
+			if (TEST_ERRNO == test_cases[i].exp_errno) {
+				tst_resm(TPASS | TTERRNO,
+					 "dup3 failed as expected");
+			} else {
+				tst_resm(TFAIL | TTERRNO,
+					 "dup3 failed unexpectedly; expected:",
+					 "%d - %s", test_cases[i].exp_errno,
+					 strerror(test_cases[i].exp_errno));
+			}
+		}
+	}
+
+	cleanup();
+	tst_exit();
+}
+
+static void setup(void)
+{
+	int oldfd;
+
+	tst_sig(NOFORK, DEF_HANDLER, cleanup);
+

testcases/kernel/syscalls/dup3/dup3_02.c new file +8 -0

+}
+
+static void cleanup(void)
+{
+	TEST_CLEANUP;
+
+	tst_rmdir();
+}