src/src/lookups/whoson.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2015 */
   6 /* Copyright (c) The Exim Maintainers 2020 */
   7 /* See the file NOTICE for conditions of use and distribution. */
   8
   9 /* This code originally came from Robert Wal. */
  10
  11 #include "../exim.h"
  12
  13
  14 #include <whoson.h>        /* Public header */
  15
  16
  17 /*************************************************
  18 *              Open entry point                  *
  19 *************************************************/
  20
  21 /* See local README for interface description. */
  22
  23 static void *
  24 whoson_open(const uschar * filename, uschar ** errmsg)
  25 {
  26 filename = filename;   /* Keep picky compilers happy */
  27 errmsg = errmsg;
  28 return (void *)(1);    /* Just return something non-null */
  29 }
  30
  31
  32 /*************************************************
  33 *               Find entry point                 *
  34 *************************************************/
  35
  36 /* See local README for interface description. */
  37
  38 static int
  39 whoson_find(void * handle, const uschar * filename, uschar * query, int length,
  40   uschar ** result, uschar ** errmsg, uint * do_cache, const uschar * opts)
  41 {
  42 uschar buffer[80];
  43 handle = handle;          /* Keep picky compilers happy */
  44 filename = filename;
  45 length = length;
  46 errmsg = errmsg;
  47 do_cache = do_cache;
  48
  49 switch (wso_query(CS query, CS buffer, sizeof(buffer)))
  50   {
  51   case 0:
  52   *result = string_copy(buffer);    /* IP in database; return name of user */
  53   return OK;
  54
  55   case +1:
  56   return FAIL;                      /* IP not in database */
  57
  58   default:
  59   *errmsg = string_sprintf("WHOSON: failed to complete: %s", buffer);
  60   return DEFER;
  61   }
  62 }
  63
  64
  65
  66 /*************************************************
  67 *         Version reporting entry point          *
  68 *************************************************/
  69
  70 /* See local README for interface description. */
  71
  72 #include "../version.h"
  73
  74 void
  75 whoson_version_report(FILE *f)
  76 {
  77 fprintf(f, "Library version: Whoson: Runtime: %s\n", wso_version());
  78 #ifdef DYNLOOKUP
  79 fprintf(f, "                         Exim version %s\n", EXIM_VERSION_STR);
  80 #endif
  81 }
  82
  83 static lookup_info _lookup_info = {
  84   .name = US"whoson",                   /* lookup name */
  85   .type = lookup_querystyle,            /* query-style lookup */
  86   .open = whoson_open,                  /* open function */
  87   .check = NULL,                        /* check function */
  88   .find = whoson_find,                  /* find function */
  89   .close = NULL,                        /* no close function */
  90   .tidy = NULL,                         /* no tidy function */
  91   .quote = NULL,                        /* no quoting function */
  92   .version_report = whoson_version_report          /* version reporting */
  93 };
  94
  95 #ifdef DYNLOOKUP
  96 #define whoson_lookup_module_info _lookup_module_info
  97 #endif
  98
  99 static lookup_info *_lookup_list[] = { &_lookup_info };
 100 lookup_module_info whoson_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
 101
 102 /* End of lookups/whoson.c */