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
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"
28 #if !defined(HAVE_NS_TYPE) && defined(NS_INADDRSZ)
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;
39 if ((spf_server = SPF_server_new(SPF_DNS_CACHE, 0)))
40 return (void *) spf_server;
41 *errmsg = US"SPF_server_new() failed";
46 spf_close(void *handle)
48 SPF_server_t *spf_server = handle;
49 if (spf_server) SPF_server_free(spf_server);
53 spf_find(void *handle, uschar *filename, const uschar *keystring, int key_len,
54 uschar **result, uschar **errmsg, uint *do_cache)
56 SPF_server_t *spf_server = handle;
57 SPF_request_t *spf_request;
58 SPF_response_t *spf_response = NULL;
60 if (!(spf_request = SPF_request_new(spf_server)))
62 *errmsg = US"SPF_request_new() failed";
67 switch (string_is_ip_address(filename, NULL))
73 if (!SPF_request_set_ipv4_str(spf_request, CS filename))
75 *errmsg = string_sprintf("invalid IPv4 address '%s'", filename);
80 if (!SPF_request_set_ipv6_str(spf_request, CS filename))
82 *errmsg = string_sprintf("invalid IPv6 address '%s'", filename);
86 *errmsg = string_sprintf("invalid IP address '%s'", filename);
91 if (SPF_request_set_env_from(spf_request, CS keystring))
93 *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
97 SPF_request_query_mailfrom(spf_request, &spf_response);
98 *result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
99 SPF_response_free(spf_response);
100 SPF_request_free(spf_request);
105 /*************************************************
106 * Version reporting entry point *
107 *************************************************/
109 /* See local README for interface description. */
111 #include "../version.h"
114 spf_version_report(FILE *f)
117 fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR);
122 static lookup_info _lookup_info = {
123 US"spf", /* lookup name */
124 0, /* not absfile, not query style */
125 spf_open, /* open function */
126 NULL, /* no check function */
127 spf_find, /* find function */
128 spf_close, /* close function */
129 NULL, /* no tidy function */
130 NULL, /* no quoting function */
131 spf_version_report /* version reporting */
135 #define spf_lookup_module_info _lookup_module_info
138 static lookup_info *_lookup_list[] = { &_lookup_info };
139 lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
141 #endif /* SUPPORT_SPF */