src/src/lookups/whoson.c

   1 /* $Cambridge: exim/src/src/lookups/whoson.c,v 1.5 2009/11/16 19:50:38 nm4 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2009 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* This code originally came from Robert Wal. */
  11
  12 #include "../exim.h"
  13
  14
  15 #include <whoson.h>        /* Public header */
  16
  17
  18 /*************************************************
  19 *              Open entry point                  *
  20 *************************************************/
  21
  22 /* See local README for interface description. */
  23
  24 static void *
  25 whoson_open(uschar *filename, uschar **errmsg)
  26 {
  27 filename = filename;   /* Keep picky compilers happy */
  28 errmsg = errmsg;
  29 return (void *)(1);    /* Just return something non-null */
  30 }
  31
  32
  33 /*************************************************
  34 *               Find entry point                 *
  35 *************************************************/
  36
  37 /* See local README for interface description. */
  38
  39 static int
  40 whoson_find(void *handle, uschar *filename, uschar *query, int length,
  41   uschar **result, uschar **errmsg, BOOL *do_cache)
  42 {
  43 uschar buffer[80];
  44 handle = handle;          /* Keep picky compilers happy */
  45 filename = filename;
  46 length = length;
  47 errmsg = errmsg;
  48 do_cache = do_cache;
  49
  50 switch (wso_query(query, CS buffer, sizeof(buffer)))
  51   {
  52   case 0:
  53   *result = string_copy(buffer);    /* IP in database; return name of user */
  54   return OK;
  55
  56   case +1:
  57   return FAIL;                      /* IP not in database */
  58
  59   default:
  60   *errmsg = string_sprintf("WHOSON: failed to complete: %s", buffer);
  61   return DEFER;
  62   }
  63 }
  64
  65 static lookup_info _lookup_info = {
  66   US"whoson",                    /* lookup name */
  67   lookup_querystyle,             /* query-style lookup */
  68   whoson_open,                   /* open function */
  69   NULL,                          /* check function */
  70   whoson_find,                   /* find function */
  71   NULL,                          /* no close function */
  72   NULL,                          /* no tidy function */
  73   NULL                           /* no quoting function */
  74 };
  75
  76 #ifdef DYNLOOKUP
  77 #define whoson_lookup_module_info _lookup_module_info
  78 #endif
  79
  80 static lookup_info *_lookup_list[] = { &_lookup_info };
  81 lookup_module_info whoson_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
  82
  83 /* End of lookups/whoson.c */