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bugzilla bug #5273 

exploit resolved, we're now disallowing forwardmove of -128 and vice versa

Thanks, devhc!
This commit is contained in:
Zachary Slater 2011-12-25 09:07:36 +00:00
parent dfd3245c38
commit 89f7863254
1 changed files with 12 additions and 0 deletions
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12
code/qcommon/msg.c
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@ -715,8 +715,14 @@ void MSG_ReadDeltaUsercmd( msg_t *msg, usercmd_t *from, usercmd_t *to ) {
to->angles[1] = MSG_ReadDelta( msg, from->angles[1], 16);
to->angles[2] = MSG_ReadDelta( msg, from->angles[2], 16);
to->forwardmove = MSG_ReadDelta( msg, from->forwardmove, 8);
if( to->forwardmove == -128 )
to->forwardmove = -127;
to->rightmove = MSG_ReadDelta( msg, from->rightmove, 8);
if( to->rightmove == -128 )
to->rightmove = -127;
to->upmove = MSG_ReadDelta( msg, from->upmove, 8);
if( to->upmove == -128 )
to->upmove = -127;
to->buttons = MSG_ReadDelta( msg, from->buttons, 16);
to->weapon = MSG_ReadDelta( msg, from->weapon, 8);
}
@ -776,8 +782,14 @@ void MSG_ReadDeltaUsercmdKey( msg_t *msg, int key, usercmd_t *from, usercmd_t *t
to->angles[1] = MSG_ReadDeltaKey( msg, key, from->angles[1], 16);
to->angles[2] = MSG_ReadDeltaKey( msg, key, from->angles[2], 16);
to->forwardmove = MSG_ReadDeltaKey( msg, key, from->forwardmove, 8);
if( to->forwardmove == -128 )
to->forwardmove = -127;
to->rightmove = MSG_ReadDeltaKey( msg, key, from->rightmove, 8);
if( to->rightmove == -128 )
to->rightmove = -127;
to->upmove = MSG_ReadDeltaKey( msg, key, from->upmove, 8);
if( to->upmove == -128 )
to->upmove = -127;
to->buttons = MSG_ReadDeltaKey( msg, key, from->buttons, 16);
to->weapon = MSG_ReadDeltaKey( msg, key, from->weapon, 8);
} else {