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142 lines
3.7 KiB
142 lines
3.7 KiB
/*
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Copyright 1988, 1998 The Open Group
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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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* manage a collection of proto-displays. These are displays for
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* which sessionID's have been generated, but no session has been
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* started.
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*/
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#include <config.h>
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#ifdef XDMCP
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#include "dm.h"
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#include "dm_error.h"
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static struct protoDisplay *protoDisplays;
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struct protoDisplay *
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FindProtoDisplay(
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XdmcpNetaddr address,
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int addrlen,
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CARD16 displayNumber )
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{
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struct protoDisplay *pdpy;
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Debug( "FindProtoDisplay\n" );
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for (pdpy = protoDisplays; pdpy; pdpy=pdpy->next) {
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if (pdpy->displayNumber == displayNumber &&
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addressEqual( address, addrlen, pdpy->address, pdpy->addrlen ))
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{
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return pdpy;
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}
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}
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return (struct protoDisplay *)0;
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}
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static void
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TimeoutProtoDisplays (void)
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{
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struct protoDisplay *pdpy, *next;
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for (pdpy = protoDisplays; pdpy; pdpy = next) {
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next = pdpy->next;
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if (pdpy->date < (unsigned long)(now - PROTO_TIMEOUT))
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DisposeProtoDisplay( pdpy );
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}
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}
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struct protoDisplay *
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NewProtoDisplay( XdmcpNetaddr address, int addrlen, CARD16 displayNumber,
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CARD16 connectionType, ARRAY8Ptr connectionAddress,
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CARD32 sessionID )
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{
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struct protoDisplay *pdpy;
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Debug( "NewProtoDisplay\n" );
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TimeoutProtoDisplays ();
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pdpy = (struct protoDisplay *)Malloc( sizeof(*pdpy) );
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if (!pdpy)
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return NULL;
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pdpy->address = (XdmcpNetaddr)Malloc( addrlen );
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if (!pdpy->address) {
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free( (char *)pdpy );
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return NULL;
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}
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pdpy->addrlen = addrlen;
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memmove( pdpy->address, address, addrlen );
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pdpy->displayNumber = displayNumber;
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pdpy->connectionType = connectionType;
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pdpy->date = now;
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if (!XdmcpCopyARRAY8( connectionAddress, &pdpy->connectionAddress )) {
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free( (char *)pdpy->address );
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free( (char *)pdpy );
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return NULL;
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}
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pdpy->sessionID = sessionID;
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pdpy->fileAuthorization = (Xauth *)NULL;
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pdpy->xdmcpAuthorization = (Xauth *)NULL;
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pdpy->next = protoDisplays;
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protoDisplays = pdpy;
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return pdpy;
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}
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void
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DisposeProtoDisplay( pdpy )
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struct protoDisplay *pdpy;
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{
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struct protoDisplay *p, *prev;
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prev = 0;
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for (p = protoDisplays; p; p=p->next) {
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if (p == pdpy)
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break;
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prev = p;
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}
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if (!p)
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return;
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if (prev)
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prev->next = pdpy->next;
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else
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protoDisplays = pdpy->next;
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bzero( &pdpy->key, sizeof(pdpy->key) );
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if (pdpy->fileAuthorization)
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XauDisposeAuth( pdpy->fileAuthorization );
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if (pdpy->xdmcpAuthorization)
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XauDisposeAuth( pdpy->xdmcpAuthorization );
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XdmcpDisposeARRAY8( &pdpy->connectionAddress );
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free( (char *)pdpy->address );
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free( (char *)pdpy );
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}
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#endif /* XDMCP */
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