check for many invalid attempts to modify entities (like setmodel on world, or on...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@3631 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/pr_cmds.c b/pr_cmds.c
index 5f033db063e477e540f55a9a8bdc29e055aaeaf7..4f1c3b0c75802a39f50b1a87220e6da7a02961f4 100644 (file)
--- a/pr_cmds.c
+++ b/pr_cmds.c
@@ -266,6 +266,10 @@ void PF_setorigin (void)
        float   *org;
 
        e = G_EDICT(OFS_PARM0);
+       if (e == sv.edicts)
+               Host_Error("setorigin: can not modify world entity\n");
+       if (e->e->free)
+               Host_Error("setorigin: can not modify free entity\n");
        org = G_VECTOR(OFS_PARM1);
        VectorCopy (org, e->v->origin);
        SV_LinkEdict (e, false);
@@ -304,6 +308,10 @@ void PF_setsize (void)
        float   *min, *max;
 
        e = G_EDICT(OFS_PARM0);
+       if (e == sv.edicts)
+               Host_Error("setsize: can not modify world entity\n");
+       if (e->e->free)
+               Host_Error("setsize: can not modify free entity\n");
        min = G_VECTOR(OFS_PARM1);
        max = G_VECTOR(OFS_PARM2);
        SetMinMaxSize (e, min, max, false);
@@ -325,6 +333,10 @@ void PF_setmodel (void)
        int             i;
 
        e = G_EDICT(OFS_PARM0);
+       if (e == sv.edicts)
+               Host_Error("setmodel: can not modify world entity\n");
+       if (e->e->free)
+               Host_Error("setmodel: can not modify free entity\n");
        m = G_STRING(OFS_PARM1);
 
 // check to see if model was properly precached
@@ -796,6 +808,8 @@ void PF_TraceToss (void)
        pr_xfunction->builtinsprofile += 600;
 
        ent = G_EDICT(OFS_PARM0);
+       if (ent == sv.edicts)
+               Host_Error("tracetoss: can not use world entity\n");
        ignore = G_EDICT(OFS_PARM1);
 
        trace = SV_Trace_Toss (ent, ignore);
@@ -960,7 +974,7 @@ void PF_stuffcmd (void)
 =================
 PF_localcmd
 
-Sends text over to the client's execution buffer
+Sends text to server console
 
 localcmd (string)
 =================
@@ -1113,6 +1127,8 @@ void PF_Remove (void)
                Host_Error("remove: tried to remove world\n");
        if (NUM_FOR_EDICT(ed) <= svs.maxclients)
                Host_Error("remove: tried to remove a client\n");
+       if (ed->e->free)
+               Host_Error("remove: tried to remove an entity that was already removed\n");
        ED_Free (ed);
 }
 
@@ -1350,6 +1366,10 @@ void PF_walkmove (void)
        int     oldself;
 
        ent = PROG_TO_EDICT(pr_global_struct->self);
+       if (ent == sv.edicts)
+               Host_Error("walkmove: can not modify world entity\n");
+       if (ent->e->free)
+               Host_Error("walkmove: can not modify free entity\n");
        yaw = G_FLOAT(OFS_PARM0);
        dist = G_FLOAT(OFS_PARM1);
 
@@ -1391,6 +1411,10 @@ void PF_droptofloor (void)
        trace_t         trace;
 
        ent = PROG_TO_EDICT(pr_global_struct->self);
+       if (ent == sv.edicts)
+               Host_Error("droptofloor: can not modify world entity\n");
+       if (ent->e->free)
+               Host_Error("droptofloor: can not modify free entity\n");
 
        VectorCopy (ent->v->origin, end);
        end[2] -= 256;
@@ -1534,6 +1558,10 @@ void PF_aim (void)
        float   speed;
 
        ent = G_EDICT(OFS_PARM0);
+       if (ent == sv.edicts)
+               Host_Error("aim: can not use world entity\n");
+       if (ent->e->free)
+               Host_Error("aim: can not use free entity\n");
        speed = G_FLOAT(OFS_PARM1);
 
        VectorCopy (ent->v->origin, start);
@@ -1610,6 +1638,10 @@ void PF_changeyaw (void)
        float           ideal, current, move, speed;
 
        ent = PROG_TO_EDICT(pr_global_struct->self);
+       if (ent == sv.edicts)
+               Host_Error("changeyaw: can not modify world entity\n");
+       if (ent->e->free)
+               Host_Error("changeyaw: can not modify free entity\n");
        current = ANGLEMOD(ent->v->angles[1]);
        ideal = ent->v->ideal_yaw;
        speed = ent->v->yaw_speed;
@@ -1653,6 +1685,10 @@ void PF_changepitch (void)
        eval_t          *val;
 
        ent = G_EDICT(OFS_PARM0);
+       if (ent == sv.edicts)
+               Host_Error("changepitch: can not modify world entity\n");
+       if (ent->e->free)
+               Host_Error("changepitch: can not modify free entity\n");
        current = ANGLEMOD( ent->v->angles[0] );
        if ((val = GETEDICTFIELDVALUE(ent, eval_idealpitch)))
                ideal = val->_float;
@@ -1725,7 +1761,7 @@ sizebuf_t *WriteDest (void)
                ent = PROG_TO_EDICT(pr_global_struct->msg_entity);
                entnum = NUM_FOR_EDICT(ent);
                if (entnum < 1 || entnum > svs.maxclients || !svs.clients[entnum-1].active)
-                       Con_Printf("WriteDest: tried to write to non-client\n");
+                       Host_Error("WriteDest: tried to write to non-client\n");
                return &svs.clients[entnum-1].message;
 
        case MSG_ALL:
@@ -1791,6 +1827,10 @@ void PF_makestatic (void)
        int i, large;
 
        ent = G_EDICT(OFS_PARM0);
+       if (ent == sv.edicts)
+               Host_Error("makestatic: can not modify world entity\n");
+       if (ent->e->free)
+               Host_Error("makestatic: can not modify free entity\n");
 
        large = false;
        if (ent->v->modelindex >= 256 || ent->v->frame >= 256)
@@ -2060,7 +2100,15 @@ void PF_copyentity (void)
 {
        edict_t *in, *out;
        in = G_EDICT(OFS_PARM0);
+       if (in == sv.edicts)
+               Host_Error("copyentity: can not read world entity\n");
+       if (in->e->free)
+               Host_Error("copyentity: can not read free entity\n");
        out = G_EDICT(OFS_PARM1);
+       if (out == sv.edicts)
+               Host_Error("copyentity: can not modify world entity\n");
+       if (out->e->free)
+               Host_Error("copyentity: can not modify free entity\n");
        memcpy(out->v, in->v, progs->entityfields * 4);
 }
 
@@ -2955,6 +3003,11 @@ void PF_setattachment (void)
        int i, modelindex;
        model_t *model;
 
+       if (e == sv.edicts)
+               Host_Error("setattachment: can not modify world entity\n");
+       if (e->e->free)
+               Host_Error("setattachment: can not modify free entity\n");
+
        if (tagentity == NULL)
                tagentity = sv.edicts;