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   if (ctx->searchcmd == reg_chansearch) {
  27     if (argc!=1) {
  28       parseError="nick: usage: (nick target)";
  29       free(localdata);
  30       return NULL;
  31     }
  32     if ((localdata->np=getnickbynick(argv[0]))==NULL) {
  33       parseError="nick: unknown nickname";
  34       free(localdata);
  35       return NULL;
  36     }
  37   } else if (ctx->searchcmd == reg_nicksearch) {
  38     if (argc) {
  39       parseError="nick: usage: (match (nick) target)";
  40       free(localdata);
  41       return NULL;
  42     }
  43     localdata->np = NULL;
  44   } else {
  45     parseError="nick: invalid search command";
  46     free(localdata);
  47     return NULL;
  48   }
  49
  50   if (!(thenode=(struct searchNode *)malloc(sizeof(struct searchNode)))) {
  51     /* couldn't malloc() memory for thenode, so free localdata to avoid leakage */
  52     parseError = "malloc: could not allocate memory for this search.";
  53     free(localdata);
  54     return NULL;
  55   }
  56
  57   if (ctx->searchcmd == reg_chansearch)
  58     thenode->returntype = RETURNTYPE_BOOL;
  59   else
  60     thenode->returntype = RETURNTYPE_STRING;
  61   thenode->localdata = localdata;
  62   thenode->exe = nick_exe;
  63   thenode->free = nick_free;
  64
  65   return thenode;
  66 }
  67
  68 void *nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput) {
  69   struct nick_localdata *localdata;
  70   nick *np;
  71   chanindex *cip;
  72
  73   localdata = thenode->localdata;
  74
  75   if (ctx->searchcmd == reg_chansearch) {
  76     cip = (chanindex *)theinput;
  77
  78     if (cip->channel==NULL || getnumerichandlefromchanhash(cip->channel->users, localdata->np->numeric)==NULL)
  79       return (void *)0;
  80
  81     return (void *)1;
  82   } else {
  83     np = (nick *)theinput;
  84
  85     return np->nick;
  86   }
  87 }
  88
  89 void nick_free(searchCtx *ctx, struct searchNode *thenode) {
  90   free(thenode->localdata);
  91   free(thenode);
  92 }
  93