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.
16 * Copyright (c) The Exim Maintainers 2016
21 #ifndef EXPERIMENTAL_SPF
22 static void dummy(int x);
23 static void dummy2(int x) { dummy(x-1); }
24 static void dummy(int x) { dummy2(x-1); }
27 #include "lf_functions.h"
32 #include <spf2/spf_dns_resolv.h>
33 #include <spf2/spf_dns_cache.h>
36 spf_open(uschar *filename, uschar **errmsg)
38 SPF_server_t *spf_server = NULL;
39 spf_server = SPF_server_new(SPF_DNS_CACHE, 0);
40 if (spf_server == NULL) {
41 *errmsg = US"SPF_server_new() failed";
44 return (void *) spf_server;
48 spf_close(void *handle)
50 SPF_server_t *spf_server = handle;
51 if (spf_server) SPF_server_free(spf_server);
55 spf_find(void *handle, uschar *filename, const uschar *keystring, int key_len,
56 uschar **result, uschar **errmsg, uint *do_cache)
58 SPF_server_t *spf_server = handle;
59 SPF_request_t *spf_request = NULL;
60 SPF_response_t *spf_response = NULL;
62 spf_request = SPF_request_new(spf_server);
63 if (spf_request == NULL) {
64 *errmsg = US"SPF_request_new() failed";
68 if (SPF_request_set_ipv4_str(spf_request, CS filename)) {
69 *errmsg = string_sprintf("invalid IP address '%s'", filename);
72 if (SPF_request_set_env_from(spf_request, CS keystring)) {
73 *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
77 SPF_request_query_mailfrom(spf_request, &spf_response);
78 *result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
79 SPF_response_free(spf_response);
80 SPF_request_free(spf_request);
85 /*************************************************
86 * Version reporting entry point *
87 *************************************************/
89 /* See local README for interface description. */
91 #include "../version.h"
94 spf_version_report(FILE *f)
97 fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR);
102 static lookup_info _lookup_info = {
103 US"spf", /* lookup name */
104 0, /* not absfile, not query style */
105 spf_open, /* open function */
106 NULL, /* no check function */
107 spf_find, /* find function */
108 spf_close, /* close function */
109 NULL, /* no tidy function */
110 NULL, /* no quoting function */
111 spf_version_report /* version reporting */
115 #define spf_lookup_module_info _lookup_module_info
118 static lookup_info *_lookup_list[] = { &_lookup_info };
119 lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
121 #endif /* EXPERIMENTAL_SPF */