146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/* *
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* (c) Copyright 1993, 1994 Hewlett-Packard Company *
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* (c) Copyright 1993, 1994 International Business Machines Corp. *
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* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
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* (c) Copyright 1993, 1994 Novell, Inc. *
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*/
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/*
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* $XConsortium: protodpy.c /main/4 1995/10/27 16:14:24 rswiston $
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*
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* Copyright 1989 Massachusetts Institute of Technology
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*
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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, and that the name of M.I.T. not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. M.I.T. makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
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* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Keith Packard, MIT X Consortium
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*/
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/*
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* protodpy.c
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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 "dm.h"
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struct protoDisplay *protoDisplays;
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struct protoDisplay *
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FindProtoDisplay( struct sockaddr *address, int addrlen,
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#if NeedWidePrototypes
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int displayNumber )
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#else
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CARD16 displayNumber )
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#endif /* NeedWidePrototypes */
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{
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struct protoDisplay *pdpy;
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for (pdpy = protoDisplays; pdpy; pdpy=pdpy->next)
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if (pdpy->displayNumber == displayNumber &&
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addressEqual ((char *)address, addrlen, (char *)pdpy->address, pdpy->addrlen))
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{
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return pdpy;
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}
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return (struct protoDisplay *) 0;
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}
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void
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TimeoutProtoDisplays( long now )
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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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{
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next = pdpy->next;
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if (pdpy->date < 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( struct sockaddr *address, int addrlen,
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#if NeedWidePrototypes
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int displayNumber,
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int connectionType,
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#else
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CARD16 displayNumber,
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CARD16 connectionType,
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#endif /* NeedWidePrototypes */
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ARRAY8Ptr connectionAddress, CARD32 sessionID )
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{
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struct protoDisplay *pdpy;
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time_t date;
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time (&date);
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TimeoutProtoDisplays (date);
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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 = (struct sockaddr *) malloc (addrlen);
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if (!pdpy->address)
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{
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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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bcopy ((char *)address, (char *)pdpy->address, addrlen);
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pdpy->displayNumber = displayNumber;
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pdpy->connectionType = connectionType;
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pdpy->date = date;
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if (!XdmcpCopyARRAY8 (connectionAddress, &pdpy->connectionAddress))
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{
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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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int
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DisposeProtoDisplay( 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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{
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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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XdmcpDisposeARRAY8 (&pdpy->connectionAddress);
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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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free ((char *) pdpy->address);
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free ((char *) pdpy);
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}
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