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engine: client: carefully check legacy server response, check info string before passing it to UI

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This commit is contained in:
Alibek Omarov 2022-08-17 21:52:54 +03:00
parent 0d2552c3f6
commit 9d4fe707bb
1 changed files with 19 additions and 10 deletions
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29
engine/client/cl_main.c
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@ -302,7 +302,7 @@ static float CL_LerpPoint( void )
else if( server_frametime > 0.001f )
{
// automatic lerp (classic mode)
frac = ( cl.time - cl.mtime[1] ) / server_frametime;
frac = ( cl.time - cl.mtime[1] ) / server_frametime;
}
#endif
return frac;
@ -367,7 +367,7 @@ void CL_ComputeClientInterpolationAmount( usercmd_t *cmd )
min_interp = 1.0f / cl_updaterate->value;
interpolation_time = CL_LerpInterval( );
if( (cl_interp->value + epsilon) < min_interp )
{
Con_Printf( "ex_interp forced up to %.1f msec\n", min_interp * 1000.f );
@ -1713,16 +1713,23 @@ void CL_ParseStatusMessage( netadr_t from, sizebuf_t *msg )
static char infostring[MAX_INFO_STRING+8];
char *s = MSG_ReadString( msg );
int i;
const char *magic = ": wrong version\n";
size_t len = Q_strlen( s ), magiclen = Q_strlen( magic );
CL_FixupColorStringsForInfoString( s, infostring );
if( Q_strstr( infostring, "wrong version" ) )
if( len >= magiclen && !Q_strcmp( s + len - magiclen, magic ))
{
Netchan_OutOfBandPrint( NS_CLIENT, from, "info %i", PROTOCOL_LEGACY_VERSION );
Con_Printf( "^1Server^7: %s, Info: %s\n", NET_AdrToString( from ), infostring );
return;
}
if( !Info_IsValid( s ))
{
Con_Printf( "^1Server^7: %s, invalid infostring\n", NET_AdrToString( from ));
return;
}
CL_FixupColorStringsForInfoString( s, infostring );
if( !COM_CheckString( Info_ValueForKey( infostring, "gamedir" )))
{
Con_Printf( "^1Server^7: %s, Info: %s\n", NET_AdrToString( from ), infostring );
@ -1732,11 +1739,13 @@ void CL_ParseStatusMessage( netadr_t from, sizebuf_t *msg )
if( !COM_CheckString( Info_ValueForKey( infostring, "p" )))
{
Info_SetValueForKey( infostring, "legacy", "1", sizeof( infostring ) );
Con_Print("Legacy: ");
Con_Printf( "^3Server^7: %s, Game: %s\n", NET_AdrToString( from ), Info_ValueForKey( infostring, "gamedir" ));
}
else
{
// more info about servers
Con_Printf( "^2Server^7: %s, Game: %s\n", NET_AdrToString( from ), Info_ValueForKey( infostring, "gamedir" ));
}
// more info about servers
Con_Printf( "^2Server^7: %s, Game: %s\n", NET_AdrToString( from ), Info_ValueForKey( infostring, "gamedir" ));
UI_AddServerToList( from, infostring );
}