/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) The Exim Maintainers 2020 - 2022 */
/* Copyright (c) University of Cambridge 1995 - 2015 */
/* See the file NOTICE for conditions of use and distribution. */
/* SPDX-License-Identifier: GPL-2.0-or-later */

/* This code originally came from Robert Wal. */

#include "../exim.h"


#include <whoson.h>        /* Public header */


/*************************************************
*              Open entry point                  *
*************************************************/

/* See local README for interface description. */

static void *
whoson_open(const uschar * filename, uschar ** errmsg)
{
return (void *)(1);    /* Just return something non-null */
}


/*************************************************
*               Find entry point                 *
*************************************************/

/* See local README for interface description. */

static int
whoson_find(void * handle, const uschar * filename, uschar * query, int length,
  uschar ** result, uschar ** errmsg, uint * do_cache, const uschar * opts)
{
uschar buffer[80];

switch (wso_query(CS query, CS buffer, sizeof(buffer)))
  {
  case 0:
  *result = string_copy(buffer);    /* IP in database; return name of user */
  return OK;

  case +1:
  return FAIL;                      /* IP not in database */

  default:
  *errmsg = string_sprintf("WHOSON: failed to complete: %s", buffer);
  return DEFER;
  }
}



/*************************************************
*         Version reporting entry point          *
*************************************************/

/* See local README for interface description. */

gstring *
whoson_version_report(gstring * g)
{
return string_fmt_append(g,
  "Library version: Whoson: Runtime: %s\n", wso_version());
}

static lookup_info _lookup_info = {
  .name = US"whoson",			/* lookup name */
  .type = lookup_querystyle,		/* query-style lookup */
  .open = whoson_open,			/* open function */
  .check = NULL,			/* check function */
  .find = whoson_find,			/* find function */
  .close = NULL,			/* no close function */
  .tidy = NULL,				/* no tidy function */
  .quote = NULL,			/* no quoting function */
  .version_report = whoson_version_report          /* version reporting */
};

#ifdef DYNLOOKUP
#define whoson_lookup_module_info _lookup_module_info
#endif

static lookup_info *_lookup_list[] = { &_lookup_info };
lookup_module_info whoson_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };

/* End of lookups/whoson.c */
