newsearch/ns-kill.c

   1 /*
   2  * KILL functionality
   3  */
   4
   5 #include "newsearch.h"
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 #include "../control/control.h" /* controlreply() */
  11 #include "../localuser/localuser.h" /* killuser() */
  12 #include "../lib/irc_string.h" /* IPtostr() */
  13
  14 /* used for *_free functions that need to warn users of certain things
  15    i.e. hitting too many users in a (kill) or (gline) - declared in newsearch.c */
  16 extern const struct nick *senderNSExtern;
  17
  18 void *kill_exe(struct searchNode *thenode, int type, void *theinput);
  19 void kill_free(struct searchNode *thenode);
  20
  21 struct kill_localdata {
  22   unsigned int marker;
  23   int count;
  24   searchNode **nodes;
  25 };
  26
  27 struct searchNode *kill_parse(int type, int argc, char **argv) {
  28   struct kill_localdata *localdata;
  29   struct searchNode *thenode;
  30
  31   localdata = (struct kill_localdata *) malloc(sizeof(struct kill_localdata));
  32   localdata->nodes = (struct searchNode **) malloc(sizeof(struct searchNode *) * argc);
  33   localdata->count = 0;
  34   localdata->marker = nextnickmarker();
  35
  36   thenode=(struct searchNode *)malloc(sizeof (struct searchNode));
  37
  38   thenode->returntype = RETURNTYPE_BOOL;
  39   thenode->localdata = localdata;
  40   thenode->exe = kill_exe;
  41   thenode->free = kill_free;
  42
  43   return thenode;
  44 }
  45
  46 void *kill_exe(struct searchNode *thenode, int type, void *theinput) {
  47   struct kill_localdata *localdata;
  48   nick *np = (nick *)theinput;
  49
  50   localdata = thenode->localdata;
  51
  52   np->marker = localdata->marker;
  53   localdata->count++;
  54
  55   switch (type) {
  56     case RETURNTYPE_INT:
  57     case RETURNTYPE_BOOL:
  58       return (void *)1;
  59     case RETURNTYPE_STRING:
  60      return "1";
  61   }
  62   return NULL;
  63 }
  64
  65 void kill_free(struct searchNode *thenode) {
  66   struct kill_localdata *localdata;
  67   nick *np, *nnp;
  68   int i, safe=0;
  69
  70   localdata = thenode->localdata;
  71
  72   if (localdata->count > NSMAX_KILL_LIMIT) {
  73     /* need to warn the user that they have just tried to twat half the network ... */
  74     controlreply(senderNSExtern, "Warning: your pattern matches too many users (%d) - nothing done.", localdata->count);
  75     free(localdata->nodes);
  76     free(localdata);
  77     free(thenode);
  78     return;
  79   }
  80
  81   for (i=0;i<NICKHASHSIZE;i++) {
  82     for (np=nicktable[i];np;np=nnp) {
  83       nnp = np->next;
  84       if (np->marker == localdata->marker) {
  85         if (!IsOper(np) && !IsService(np) && !IsXOper(np)) {
  86           killuser(NULL, np, "You (%s!%s@%s) have been disconnected for violating our terms of service.", np->nick,
  87             np->ident, IPtostr(np->ipaddress));
  88         }
  89         else
  90             safe++;
  91       }
  92     }
  93   }
  94   if (safe)
  95     controlreply(senderNSExtern, "Warning: your pattern matched privileged users (%d in total) - these have not been touched.", safe);
  96   /* notify opers of the action */
  97   controlwall(NO_OPER, NL_KICKKILLS, "%s/%s killed %d %s via nicksearch [%d untouched].", senderNSExtern->nick, senderNSExtern->authname, localdata->count,
  98     localdata->count != 1 ? "users" : "user", safe);
  99   free(localdata->nodes);
 100   free(localdata);
 101   free(thenode);
 102 }