Cygwin: AF_UNIX: accept4: copy trailing NUL byte

If the caller has requested the peer's address, include the trailing NUL byte of the address if possible.
2020-10-07 07:07:18 -04:00 · 2020-10-07 07:07:18 -04:00 · 0f800bf44a
parent a0dd60f857
commit 0f800bf44a
1 changed files with 1 additions and 1 deletions
--- a/winsup/cygwin/fhandler_socket_unix.cc
+++ b/winsup/cygwin/fhandler_socket_unix.cc
@ -1665,7 +1665,7 @@ fhandler_socket_unix::accept4 (struct sockaddr *peer, int *len, int flags)
 			      if (sun)
 				{
 				  memcpy (peer, &sun->un,
-					  MIN (*len, sun->un_len));
+					  MIN (*len, sun->un_len + 1));
 				  *len = sun->un_len;
 				}
 			      else if (len)