/* Copyright 1988, 1998 The Open Group Copyright 2002,2004 Oswald Buddenhagen <ossi@kde.org> Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the copyright holder. */ /* * xdm - display manager daemon * Author: Keith Packard, MIT X Consortium * * streams.c - Support for STREAMS */ #include "dm.h" #if defined(XDMCP) && defined(STREAMSCONN) #include "dm_error.h" #include <fcntl.h> #include <tiuser.h> #include <netconfig.h> #include <netdir.h> static int xdmcpFd = -1, c_request_port; void UpdateListenSockets( void ) { struct t_bind bind_addr; struct netconfig *nconf; struct nd_hostserv service; struct nd_addrlist *servaddrs; char bindbuf[15]; int it; if (c_request_port == request_port) return; c_request_port = request_port; if (xdmcpFd != -1) { CloseNClearCloseOnFork( xdmcpFd ); UnregisterInput( xdmcpFd ); xdmcpFd = -1; } if (!request_port) return; Debug( "creating UDP stream %d\n", request_port ); nconf = getnetconfigent( "udp" ); if (!nconf) { t_error( "getnetconfigent udp" ); return; } xdmcpFd = t_open( nconf->nc_device, O_RDWR, NULL ); if (xdmcpFd == -1) { LogError( "XDMCP stream creation failed\n" ); t_error( "CreateWellKnownSockets(xdmcpFd): t_open failed" ); return; } service.h_host = HOST_SELF; sprintf( bindbuf, "%d", request_port ); service.h_serv = bindbuf; netdir_getbyname( nconf, &service, &servaddrs ); freenetconfigent( nconf ); bind_addr.qlen = 5; bind_addr.addr.buf = servaddrs->n_addrs[0].buf; bind_addr.addr.len = servaddrs->n_addrs[0].len; bind_addr.addr.maxlen = servaddrs->n_addrs[0].len; it = t_bind( xdmcpFd, &bind_addr, &bind_addr ); netdir_free( (char *)servaddrs, ND_ADDRLIST ); if (it < 0) { LogError( "Error binding UDP port %d\n", request_port ); t_error( "CreateWellKnownSockets(xdmcpFd): t_bind failed" ); t_close( xdmcpFd ); xdmcpFd = -1; return; } RegisterCloseOnFork( xdmcpFd ); RegisterInput( xdmcpFd ); } int AnyListenSockets( void ) { return xdmcpFd != -1; } int ProcessRequestSockets( FD_TYPE *reads ) { if (xdmcpFd >= 0 && FD_ISSET( xdmcpFd, reads )) { ProcessRequestSocket( xdmcpFd ); return 1; } return 0; } #endif /* STREAMSCONN && XDMCP */