installd _delete_dir_contents: add O_NOFOLLOW

Add O_NOFOLLOW to make sure we're not following symlinks.

https://code.google.com/p/android/issues/detail?id=181945

Bug: 23044050
Change-Id: I3408309fd401aefb6ebecb2a052bba198eed7633

parent 2bb9861d

cmds/installd/utils.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -234,7 +234,7 @@ static int _delete_dir_contents(DIR *d,
		if ((name[1] == '.') && (name[2] == 0)) continue;
		}

		subfd = openat(dfd, name, O_RDONLY \| O_DIRECTORY);
		subfd = openat(dfd, name, O_RDONLY \| O_DIRECTORY \| O_NOFOLLOW);
		if (subfd < 0) {
		ALOGE("Couldn't openat %s: %s\n", name, strerror(errno));
		result = -1;