mkdir: return error for existing directories without -p flag

Existing directories should be ignored without errors only with -p flag (according
to POSIX).

Signed-off-by: Mikhail Kashkarov <m.kashkarov@samsung.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/lib.c b/lib/lib.c
index 0c1b5c37..7af44173 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -178,7 +178,8 @@ int mkpathat(int atfd, char *dir, mode_t lastmode, int flags)
   // test for. Might as well do it up front.
 
   if (!fstatat(atfd, dir, &buf, 0)) {
-    if ((flags&MKPATHAT_MKLAST) && !S_ISDIR(buf.st_mode)) {
+    // Note that mkdir should return EEXIST for already existed directory/file.
+    if (!(flags&MKPATHAT_MAKE) || ((flags&MKPATHAT_MKLAST) && !S_ISDIR(buf.st_mode))) {
       errno = EEXIST;
       return 1;
     } else return 0;