newsearch/ns-modes.c

   1 /*
   2  * MODES functionality
   3  */
   4
   5 #include "newsearch.h"
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 struct modes_localdata {
  11   int         type;
  12   flag_t      setmodes;
  13   flag_t      clearmodes;
  14 };
  15
  16 void *modes_exe(searchCtx *ctx, struct searchNode *thenode, void *theinput);
  17 void modes_free(searchCtx *ctx, struct searchNode *thenode);
  18
  19 struct searchNode *modes_parse(searchCtx *ctx, int type, int argc, char **argv) {
  20   struct modes_localdata *localdata;
  21   struct searchNode *thenode;
  22   const flag *flaglist;
  23
  24   if (argc!=1) {
  25     parseError="modes: usage: modes (mode string)";
  26     return NULL;
  27   }
  28
  29   switch (type) {
  30   case SEARCHTYPE_CHANNEL:
  31     flaglist=cmodeflags;
  32     break;
  33
  34   case SEARCHTYPE_NICK:
  35     flaglist=umodeflags;
  36     break;
  37
  38   default:
  39     parseError="modes: unsupported search type";
  40     return NULL;
  41   }
  42
  43   if (!(localdata=(struct modes_localdata *)malloc(sizeof(struct modes_localdata)))) {
  44     parseError = "malloc: could not allocate memory for this search.";
  45     return NULL;
  46   }
  47
  48   localdata->type=type;
  49   localdata->setmodes=0;
  50   localdata->clearmodes = ~0;
  51
  52   setflags(&(localdata->setmodes), 0xFFFF, argv[0], flaglist, REJECT_NONE);
  53   setflags(&(localdata->clearmodes), 0xFFFF, argv[0], flaglist, REJECT_NONE);
  54
  55   localdata->clearmodes = ~(localdata->clearmodes);
  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   thenode->returntype  = RETURNTYPE_BOOL;
  65   thenode->localdata   = (void *)localdata;
  66   thenode->exe         = modes_exe;
  67   thenode->free        = modes_free;
  68
  69   return thenode;
  70 }
  71
  72 void *modes_exe(searchCtx *ctx, struct searchNode *thenode, void *value) {
  73   struct modes_localdata *localdata;
  74   nick *np;
  75   chanindex *cip;
  76   flag_t flags;
  77
  78   localdata = (struct modes_localdata *)thenode->localdata;
  79
  80   switch (localdata->type) {
  81   case SEARCHTYPE_CHANNEL:
  82     cip=(chanindex *)value;
  83     if (!cip->channel)
  84       return NULL;
  85     flags=cip->channel->flags;
  86     break;
  87
  88   case SEARCHTYPE_NICK:
  89     np=(nick *)value;
  90     flags=np->umodes;
  91     break;
  92
  93   default:
  94     return NULL;
  95   }
  96
  97   if (~flags & (localdata->setmodes))
  98     return (void *)0;
  99
 100   if (flags & (localdata->clearmodes))
 101     return (void *)0;
 102
 103   return (void *)1;
 104 }
 105
 106 void modes_free(searchCtx *ctx, struct searchNode *thenode) {
 107   free (thenode->localdata);
 108   free (thenode);
 109 }