[LTP] [PATCH] syscalls/chdir: bugfix for syscalls/chdir/chdir01.c

[Xie Ziyao]

Add umask(0) before SAFE_MKDIR(DIR_NAME, 0755) to prevent the unexpected case failure when the system umask is set to some values, such as 0077.

Signed-off-by: Xie Ziyao <xieziyao@huawei.com>
---
 testcases/kernel/syscalls/chdir/chdir01.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/testcases/kernel/syscalls/chdir/chdir01.c b/testcases/kernel/syscalls/chdir/chdir01.c
index 60165a6cb..23cd455d6 100644
--- a/testcases/kernel/syscalls/chdir/chdir01.c
+++ b/testcases/kernel/syscalls/chdir/chdir01.c
@@ -55,8 +55,11 @@ static void setup(void)
 	sprintf(workdir, "%s/%s", cwd, MNTPOINT);
 	free(cwd);
 	SAFE_CHDIR(workdir);
+
+	mode_t sys_umask = umask(0);
 	SAFE_MKDIR(DIR_NAME, 0755);
 	SAFE_MKDIR(BLOCKED_NAME, 0644);
+	umask(sys_umask);

 	/* FAT and NTFS override file and directory permissions */
 	SAFE_STAT(BLOCKED_NAME, &statbuf);
--
2.17.1