newsearch/ns-nick.c

   1 /*
   2  * NICK functionality
   3  */
   4
   5 #include "newsearch.h"
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 struct nick_localdata {
  11   nick *np;
  12 };
  13
  14 void *nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput);
  15 void nick_free(searchCtx *ctx, struct searchNode *thenode);
  16
  17 struct searchNode *nick_parse(searchCtx *ctx, int argc, char **argv) {
  18   struct nick_localdata *localdata;
  19   struct searchNode *thenode;
  20
  21   if (!(localdata=(struct nick_localdata *)malloc(sizeof(struct nick_localdata)))) {
  22     parseError = "malloc: could not allocate memory for this search.";
  23     return NULL;
  24   }
  25
  26   switch (ctx->type) {
  27   case SEARCHTYPE_CHANNEL:
  28     if (argc!=1) {
  29       parseError="nick: usage: (nick target)";
  30       free(localdata);
  31       return NULL;
  32     }
  33     if ((localdata->np=getnickbynick(argv[0]))==NULL) {
  34       parseError="nick: unknown nickname";
  35       free(localdata);
  36       return NULL;
  37     }
  38     break;
  39
  40   case SEARCHTYPE_NICK:
  41     if (argc) {
  42       parseError="nick: usage: (match (nick) target)";
  43       free(localdata);
  44       return NULL;
  45     }
  46     localdata->np = NULL;
  47     break;
  48
  49   default:
  50     parseError="nick: unsupported search type";
  51     free(localdata);
  52     return NULL;
  53   }
  54
  55   if (!(thenode=(struct searchNode *)malloc(sizeof(struct searchNode)))) {
  56     /* couldn't malloc() memory for thenode, so free localdata to avoid leakage */
  57     parseError = "malloc: could not allocate memory for this search.";
  58     free(localdata);
  59     return NULL;
  60   }
  61
  62   if (ctx->type == SEARCHTYPE_CHANNEL)
  63     thenode->returntype = RETURNTYPE_BOOL;
  64   else
  65     thenode->returntype = RETURNTYPE_STRING;
  66   thenode->localdata = localdata;
  67   thenode->exe = nick_exe;
  68   thenode->free = nick_free;
  69
  70   return thenode;
  71 }
  72
  73 void *nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput) {
  74   struct nick_localdata *localdata;
  75   nick *np;
  76   chanindex *cip;
  77
  78   localdata = thenode->localdata;
  79
  80   switch (ctx->type) {
  81   case SEARCHTYPE_CHANNEL:
  82     cip = (chanindex *)theinput;
  83
  84     if (cip->channel==NULL || getnumerichandlefromchanhash(cip->channel->users, localdata->np->numeric)==NULL)
  85       return (void *)0;
  86
  87     return (void *)1;
  88
  89   default:
  90   case SEARCHTYPE_NICK:
  91     np = (nick *)theinput;
  92
  93     return np->nick;
  94   }
  95 }
  96
  97 void nick_free(searchCtx *ctx, struct searchNode *thenode) {
  98   free(thenode->localdata);
  99   free(thenode);
 100 }
 101