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