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