-/*
- * Process a WM_NETEVENT message. Will return 0 if the connection
- * has closed, or <0 for a socket error.
- */
-static int telnet_msg (WPARAM wParam, LPARAM lParam) {
- int ret;
- /* This needs to be larger than the packet size now that inbuf
- * cannot overflow, in fact the fewer calls we make to windows
- * the faster we will run!
- */
- char buf[16384];
-
- /*
- * Because reading less than the whole of the available pending
- * data can generate an FD_READ event, we need to allow for the
- * possibility that FD_READ may arrive with FD_CLOSE already in
- * the queue; so it's possible that we can get here even with s
- * invalid. If so, we return 1 and don't worry about it.
- */
- if (s == INVALID_SOCKET)
- return 1;
-
- if (WSAGETSELECTERROR(lParam) != 0)
- return -WSAGETSELECTERROR(lParam);
-
- switch (WSAGETSELECTEVENT(lParam)) {
- case FD_READ:
- case FD_CLOSE:
- {
- int clear_of_oob = 1;
- if (ioctlsocket (s, SIOCATMARK, &clear_of_oob) < 0 )
- return -20000-WSAGetLastError();
-
- in_synch = !clear_of_oob;
-
- do {
- ret = recv(s, buf, sizeof(buf), 0);
- if (ret < 0 && WSAGetLastError() == WSAEWOULDBLOCK)
- return 1;
- if (ret < 0) /* any _other_ error */
- return -10000-WSAGetLastError();
- if (ret == 0) {
- s = INVALID_SOCKET;
- return 0;
- }
- do_telnet_read (buf, ret);
- } while (in_synch);
- }
- return 1;
- case FD_WRITE:
- if (outbuf_head != outbuf_reap)
- try_write();
- return 1;
- }
- return 1; /* shouldn't happen, but WTF */