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xash3d-fwgs
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engine: client: fix FlushEntityPacket message overflow on legacy servers

This commit is contained in:
Alibek Omarov 2023-04-15 03:36:04 +03:00
parent f67b97e63c
commit 25d6b2b069
1 changed files with 23 additions and 14 deletions
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37
engine/client/cl_frame.c
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@ -654,6 +654,24 @@ FRAME PARSING
=========================================================================
*/
static qboolean CL_ParseEntityNumFromPacket( sizebuf_t *msg, int *newnum )
{
if( cls.legacymode )
{
*newnum = MSG_ReadWord( msg );
if( *newnum == 0 )
return false;
}
else
{
*newnum = MSG_ReadUBitLong( msg, MAX_ENTITY_BITS );
if( *newnum == LAST_EDICT )
return false;
}
return true;
}
/*
=================
CL_FlushEntityPacket
@ -674,8 +692,8 @@ void CL_FlushEntityPacket( sizebuf_t *msg )
// read it all, but ignore it
while( 1 )
{
newnum = MSG_ReadUBitLong( msg, MAX_ENTITY_BITS );
if( newnum == LAST_EDICT ) break; // done
if( !CL_ParseEntityNumFromPacket( msg, &newnum ))
break; // done
if( MSG_CheckOverflow( msg ))
Host_Error( "CL_FlushEntityPacket: overflow\n" );
@ -847,21 +865,12 @@ int CL_ParsePacketEntities( sizebuf_t *msg, qboolean delta )
while( 1 )
{
int lastedict;
if( cls.legacymode )
{
newnum = MSG_ReadWord( msg );
lastedict = 0;
}
else
{
newnum = MSG_ReadUBitLong( msg, MAX_ENTITY_BITS );
lastedict = LAST_EDICT;
}
if( !CL_ParseEntityNumFromPacket( msg, &newnum ))
break; // done
if( newnum == lastedict ) break; // end of packet entities
if( MSG_CheckOverflow( msg ))
Host_Error( "CL_ParsePacketEntities: overflow\n" );
player = CL_IsPlayerIndex( newnum );
while( oldnum < newnum )