/* listen.c --- wrappers for Windows listen function
- Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2008-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
rpl_listen (int fd, int backlog)
{
SOCKET sock = FD_TO_SOCKET (fd);
- int r = listen (sock, backlog);
- if (r < 0)
- set_winsock_errno ();
- return r;
+ if (sock == INVALID_SOCKET)
+ {
+ errno = EBADF;
+ return -1;
+ }
+ else
+ {
+ int r = listen (sock, backlog);
+ if (r < 0)
+ set_winsock_errno ();
+
+ return r;
+ }
}