ext2fs: don't create files unless OPEN_CREATE is set

1 files changed, 7 insertions, 1 deletions

diff --git a/src/cmd/ext2fs/main.c b/src/cmd/ext2fs/main.c
index 1099df6..f45f75c 100644
--- a/src/cmd/ext2fs/main.c
+++ b/src/cmd/ext2fs/main.c
@@ -56,11 +56,17 @@ do_open(struct ext2 *fs, hid_t reqh, struct ufs_request *req, char *buf)
 {
 	bool is_dir = req->len == 0 || buf[req->len-1] == '/';
 	uint32_t n = ext2c_walk(fs, buf, req->len);
-	if (n == 0) {
+	if (n == 0) { /* didn't find anything */
+		if ((req->flags & OPEN_CREATE) == 0) {
+			_sys_fs_respond(reqh, NULL, -ENOENT, 0);
+			return;
+		}
 		if (is_dir) {
+			// TODO support creating directories
 			_sys_fs_respond(reqh, NULL, -ENOSYS, 0);
 			return;
 		}
+
 		/* buf[0] == '/', strrchr != NULL */
 		char *name = strrchr(buf, '/') + 1;
 		uint32_t dir_n = ext2c_walk(fs, buf, name - buf);