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