swrap: Automatically bind an ephemeral port if needed

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c
index b43c877d0a8e8ac84e746846d4bc3cbb241b7575..9ba212bafe41ea7a9d0ba431407f2cf36347638c 100644 (file)
--- a/src/socket_wrapper.c
+++ b/src/socket_wrapper.c
@@ -3154,6 +3154,14 @@ static int swrap_listen(int s, int backlog)
                return libc_listen(s, backlog);
        }
 
+       if (si->bound == 0) {
+               ret = swrap_auto_bind(s, si, si->family);
+               if (ret == -1) {
+                       errno = EADDRINUSE;
+                       return ret;
+               }
+       }
+
        ret = libc_listen(s, backlog);
 
        return ret;