Win32: ioctl SIO_UDP_CONNRESET <- FALSE

[xonotic/darkplaces.git] / sv_user.c

diff --git a/sv_user.c b/sv_user.c
index df8e90ec9f13c927f4915c3486acdbb0c0dec472..86fca5610a3eacd7f91318d0ce9027c3e2cc89e5 100644 (file)
--- a/sv_user.c
+++ b/sv_user.c
@@ -22,24 +22,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "quakedef.h"
 #define DEBUGMOVES 0
 
-cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
-cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
-cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
-cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can accelerate to when airborn (note that it is possible to completely stop by moving the opposite direction)"};
-cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
-cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
-cvar_t sv_wateraccelerate = {0, "sv_wateraccelerate", "-1", "rate at which a player accelerates to sv_maxspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
-cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
-cvar_t sv_airaccel_qw = {0, "sv_airaccelerate", "1", "ratio of QW-style air control as opposed to simple acceleration"};
-cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccelerate", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
-cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
-cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
-cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
-cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "16", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
-
 static usercmd_t cmd;
 
-
 /*
 ===============
 SV_SetIdealPitch
@@ -383,7 +367,6 @@ the move fields specify an intended velocity in pix/sec
 the angle fields specify an exact angular motion in degrees
 ===================
 */
-extern cvar_t sv_playerphysicsqc;
 void SV_ClientThink (void)
 {
        vec3_t v_angle;
@@ -734,7 +717,7 @@ extern sizebuf_t vm_tempstringsbuf;
 void SV_ReadClientMessage(void)
 {
        int cmd, num, start;
-       char *s;
+       char *s, *p, *q;
 
        //MSG_BeginReading ();
        sv_numreadmoves = 0;
@@ -776,6 +759,21 @@ void SV_ReadClientMessage(void)
 
                case clc_stringcmd:
                        s = MSG_ReadString ();
+                       q = NULL;
+                       for(p = s; *p; ++p) switch(*p)
+                       {
+                               case 10:
+                               case 13:
+                                       if(!q)
+                                               q = p;
+                                       break;
+                               default:
+                                       if(q)
+                                               goto clc_stringcmd_invalid; // newline seen, THEN something else -> possible exploit
+                                       break;
+                       }
+                       if(q)
+                               *q = 0;
                        if (strncasecmp(s, "spawn", 5) == 0
                         || strncasecmp(s, "begin", 5) == 0
                         || strncasecmp(s, "prespawn", 8) == 0)
@@ -793,6 +791,12 @@ void SV_ReadClientMessage(void)
                                Cmd_ExecuteString (s, src_client);
                        break;
 
+clc_stringcmd_invalid:
+                       Con_Printf("Received invalid stringcmd from %s\n", host_client->name);
+                       if(developer.integer)
+                               Com_HexDumpToConsole((unsigned char *) s, strlen(s));
+                       break;
+
                case clc_disconnect:
                        SV_DropClient (false); // client wants to disconnect
                        return;