[poky] [PATCH 1/1] pseudo: Add check for existence of old file to renameat

[Anton Gerasimov]

Signed-off-by: Anton Gerasimov <anton at advancedtelematic.com>
---
 ports/unix/guts/renameat.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/ports/unix/guts/renameat.c b/ports/unix/guts/renameat.c
index ade0509..d5e36fa 100644
--- a/ports/unix/guts/renameat.c
+++ b/ports/unix/guts/renameat.c
@@ -11,6 +11,7 @@
 	int oldrc, newrc;
 	int save_errno;
 	int old_db_entry = 0;
+	int may_unlinked = 0;
 
 	pseudo_debug(PDBGF_FILE, "renameat: %d,%s->%d,%s\n",
 		olddirfd, oldpath ? oldpath : "<nil>",
@@ -44,10 +45,14 @@
 	/* as with unlink, we have to mark that the file may get deleted */
 	msg = pseudo_client_op(OP_MAY_UNLINK, 0, -1, newdirfd, newpath, newrc ? NULL : &newbuf);
 	if (msg && msg->result == RESULT_SUCCEED)
+		may_unlinked = 1;
+	msg = pseudo_client_op(OP_STAT, 0, -1, olddirfd, oldpath, oldrc ? NULL : &oldbuf);
+	if (msg && msg->result == RESULT_SUCCEED)
 		old_db_entry = 1;
+
 	rc = real_renameat(olddirfd, oldpath, newdirfd, newpath);
 	save_errno = errno;
-	if (old_db_entry) {
+	if (may_unlinked) {
 		if (rc == -1) {
 			/* since we failed, that wasn't really unlinked -- put
 			 * it back.
-- 
2.9.3