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   int type;
  13 };
  14
  15 void *nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput);
  16 void nick_free(searchCtx *ctx, struct searchNode *thenode);
  17
  18 struct searchNode *nick_parse(searchCtx *ctx, int type, int argc, char **argv) {
  19   struct nick_localdata *localdata;
  20   struct searchNode *thenode;
  21
  22   if (!(localdata=(struct nick_localdata *)malloc(sizeof(struct nick_localdata)))) {
  23     parseError = "malloc: could not allocate memory for this search.";
  24     return NULL;
  25   }
  26
  27   switch (type) {
  28   case SEARCHTYPE_CHANNEL:
  29     if (argc!=1) {
  30       parseError="nick: usage: (nick target)";
  31       free(localdata);
  32       return NULL;
  33     }
  34     if ((localdata->np=getnickbynick(argv[0]))==NULL) {
  35       parseError="nick: unknown nickname";
  36       free(localdata);
  37       return NULL;
  38     }
  39     localdata->type = type;
  40     break;
  41
  42   case SEARCHTYPE_NICK:
  43     if (argc) {
  44       parseError="nick: usage: (match (nick) target)";
  45       free(localdata);
  46       return NULL;
  47     }
  48     localdata->type = type;
  49     localdata->np = NULL;
  50     break;
  51
  52   default:
  53     parseError="nick: unsupported search type";
  54     free(localdata);
  55     return NULL;
  56   }
  57
  58   if (!(thenode=(struct searchNode *)malloc(sizeof(struct searchNode)))) {
  59     /* couldn't malloc() memory for thenode, so free localdata to avoid leakage */
  60     parseError = "malloc: could not allocate memory for this search.";
  61     free(localdata);
  62     return NULL;
  63   }
  64
  65   if (type == SEARCHTYPE_CHANNEL)
  66     thenode->returntype = RETURNTYPE_BOOL;
  67   else
  68     thenode->returntype = RETURNTYPE_STRING;
  69   thenode->localdata = localdata;
  70   thenode->exe = nick_exe;
  71   thenode->free = nick_free;
  72
  73   return thenode;
  74 }
  75
  76 void *nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput) {
  77   struct nick_localdata *localdata;
  78   nick *np;
  79   chanindex *cip;
  80
  81   localdata = thenode->localdata;
  82
  83   switch (localdata->type) {
  84   case SEARCHTYPE_CHANNEL:
  85     cip = (chanindex *)theinput;
  86
  87     if (cip->channel==NULL || getnumerichandlefromchanhash(cip->channel->users, localdata->np->numeric)==NULL)
  88       return (void *)0;
  89
  90     return (void *)1;
  91
  92   default:
  93   case SEARCHTYPE_NICK:
  94     np = (nick *)theinput;
  95
  96     return np->nick;
  97   }
  98 }
  99
 100 void nick_free(searchCtx *ctx, struct searchNode *thenode) {
 101   free(thenode->localdata);
 102   free(thenode);
 103 }
 104