1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
6 * Exim - SPF lookup module using libspf2
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9 * Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
20 #ifndef EXPERIMENTAL_SPF
21 static void dummy(int x) { dummy(x-1); }
24 #include "lf_functions.h"
29 #include <spf2/spf_dns_resolv.h>
30 #include <spf2/spf_dns_cache.h>
32 static void *spf_open(uschar *filename, uschar **errmsg) {
33 SPF_server_t *spf_server = NULL;
34 spf_server = SPF_server_new(SPF_DNS_CACHE, 0);
35 if (spf_server == NULL) {
36 *errmsg = US"SPF_server_new() failed";
39 return (void *) spf_server;
42 static void spf_close(void *handle) {
43 SPF_server_t *spf_server = handle;
44 if (spf_server) SPF_server_free(spf_server);
47 static int spf_find(void *handle, uschar *filename, uschar *keystring, int key_len,
48 uschar **result, uschar **errmsg, BOOL *do_cache) {
49 SPF_server_t *spf_server = handle;
50 SPF_request_t *spf_request = NULL;
51 SPF_response_t *spf_response = NULL;
53 spf_request = SPF_request_new(spf_server);
54 if (spf_request == NULL) {
55 *errmsg = US"SPF_request_new() failed";
59 if (SPF_request_set_ipv4_str(spf_request, CS filename)) {
60 *errmsg = string_sprintf("invalid IP address '%s'", filename);
63 if (SPF_request_set_env_from(spf_request, CS keystring)) {
64 *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
68 SPF_request_query_mailfrom(spf_request, &spf_response);
69 *result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
70 SPF_response_free(spf_response);
71 SPF_request_free(spf_request);
76 /*************************************************
77 * Version reporting entry point *
78 *************************************************/
80 /* See local README for interface description. */
82 #include "../version.h"
85 spf_version_report(FILE *f)
88 fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR);
93 static lookup_info _lookup_info = {
94 US"spf", /* lookup name */
95 0, /* not absfile, not query style */
96 spf_open, /* open function */
97 NULL, /* no check function */
98 spf_find, /* find function */
99 spf_close, /* close function */
100 NULL, /* no tidy function */
101 NULL, /* no quoting function */
102 spf_version_report /* version reporting */
106 #define spf_lookup_module_info _lookup_module_info
109 static lookup_info *_lookup_list[] = { &_lookup_info };
110 lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
112 #endif /* EXPERIMENTAL_SPF */