patriciasearch/ps-nick.c

   1 #include "patriciasearch.h"
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5
   6 void *ps_nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput);
   7 void ps_nick_free(searchCtx *ctx, struct searchNode *thenode);
   8
   9 struct nick_localdata {
  10   nick *np;
  11 };
  12
  13 struct searchNode *ps_nick_parse(searchCtx *ctx, int argc, char **argv) {
  14   struct searchNode *thenode;
  15   struct nick_localdata *localdata;
  16
  17   if (!(localdata=(struct nick_localdata *)malloc(sizeof(struct nick_localdata)))) {
  18     parseError = "malloc: could not allocate memory for this search.";
  19     return NULL;
  20   }
  21
  22   if (argc!=1) {
  23     parseError="nick: usage: (nick target)";
  24     free(localdata);
  25     return NULL;
  26   }
  27   if ((localdata->np=getnickbynick(argv[0]))==NULL) {
  28     parseError="nick: unknown nickname";
  29     free(localdata);
  30     return NULL;
  31   }
  32
  33   if (!(thenode=(struct searchNode *)malloc(sizeof (struct searchNode)))) {
  34     parseError = "malloc: could not allocate memory for this search.";
  35     return NULL;
  36   }
  37
  38   thenode->returntype = RETURNTYPE_BOOL;
  39   thenode->localdata = localdata;
  40   thenode->exe = ps_nick_exe;
  41   thenode->free = ps_nick_free;
  42
  43   return thenode;
  44 }
  45
  46 void *ps_nick_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput) {
  47   struct nick_localdata *localdata;
  48   patricia_node_t *node;
  49   nick *np;
  50   patricianick_t *pnp;
  51   patricia_node_t *pn;
  52   int i;
  53
  54   localdata = thenode->localdata;
  55   node = (patricia_node_t *)theinput;
  56
  57   if (pnode_ext && node->exts[pnode_ext] ) {
  58     pnp = node->exts[pnode_ext];
  59     for (i = 0; i < PATRICIANICK_HASHSIZE; i++) {
  60       for (np = pnp->identhash[i]; np; np=np->exts[pnick_ext]) {
  61         if (np == localdata->np)
  62           return (void *)1;
  63       }
  64     }
  65   }
  66   return (void *)0;
  67 }
  68
  69 void ps_nick_free(searchCtx *ctx, struct searchNode *thenode) {
  70   free(thenode->localdata);
  71   free(thenode);
  72 }