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 #include "../channel/channel.h"
  11 #include "../lib/flags.h"
  12
  13 struct modes_localdata {
  14   int         type;
  15   flag_t      setmodes;
  16   flag_t      clearmodes;
  17 };
  18
  19 void *modes_exe(struct searchNode *thenode, int type, void *theinput);
  20 void modes_free(struct searchNode *thenode);
  21
  22 struct searchNode *modes_parse(int type, int argc, char **argv) {
  23   struct modes_localdata *localdata;
  24   struct searchNode *thenode;
  25   const flag *flaglist;
  26
  27   if (argc!=1) {
  28     parseError="modes: usage: modes (mode string)";
  29     return NULL;
  30   }
  31
  32   switch (type) {
  33   case SEARCHTYPE_CHANNEL:
  34     flaglist=cmodeflags;
  35     break;
  36
  37   case SEARCHTYPE_NICK:
  38     flaglist=umodeflags;
  39     break;
  40
  41   default:
  42     parseError="modes: unsupported search type";
  43     return NULL;
  44   }
  45
  46   if (!(localdata=(struct modes_localdata *)malloc(sizeof(struct modes_localdata)))) {
  47     parseError = "malloc: could not allocate memory for this search.";
  48     return NULL;
  49   }
  50
  51   localdata->type=type;
  52   localdata->setmodes=0;
  53   localdata->clearmodes = ~0;
  54
  55   setflags(&(localdata->setmodes), 0xFFFF, argv[0], flaglist, REJECT_NONE);
  56   setflags(&(localdata->clearmodes), 0xFFFF, argv[0], flaglist, REJECT_NONE);
  57
  58   localdata->clearmodes = ~(localdata->clearmodes);
  59
  60   if (!(thenode=(struct searchNode *)malloc(sizeof(struct searchNode)))) {
  61     /* couldn't malloc() memory for thenode, so free localdata to avoid leakage */
  62     parseError = "malloc: could not allocate memory for this search.";
  63     free(localdata);
  64     return NULL;
  65   }
  66
  67   thenode->returntype  = RETURNTYPE_BOOL;
  68   thenode->localdata   = (void *)localdata;
  69   thenode->exe         = modes_exe;
  70   thenode->free        = modes_free;
  71
  72   return thenode;
  73 }
  74
  75 void *modes_exe(struct searchNode *thenode, int type, void *value) {
  76   struct modes_localdata *localdata;
  77   nick *np;
  78   chanindex *cip;
  79   flag_t flags;
  80
  81   localdata = (struct modes_localdata *)thenode->localdata;
  82
  83   switch (localdata->type) {
  84   case SEARCHTYPE_CHANNEL:
  85     cip=(chanindex *)value;
  86     if (!cip->channel)
  87       return NULL;
  88     flags=cip->channel->flags;
  89     break;
  90
  91   case SEARCHTYPE_NICK:
  92     np=(nick *)value;
  93     flags=np->umodes;
  94     break;
  95
  96   default:
  97     return NULL;
  98   }
  99
 100   if (~flags & (localdata->setmodes))
 101     return falseval(type);
 102
 103   if (flags & (localdata->clearmodes))
 104     return falseval(type);
 105
 106   return trueval(type);
 107 }
 108
 109 void modes_free(struct searchNode *thenode) {
 110   free (thenode->localdata);
 111   free (thenode);
 112 }