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);
22 static void dummy2(int x) { dummy(x-1); }
23 static void dummy(int x) { dummy2(x-1); }
26 #include "lf_functions.h"
31 #include <spf2/spf_dns_resolv.h>
32 #include <spf2/spf_dns_cache.h>
35 spf_open(uschar *filename, uschar **errmsg)
37 SPF_server_t *spf_server = NULL;
38 spf_server = SPF_server_new(SPF_DNS_CACHE, 0);
39 if (spf_server == NULL) {
40 *errmsg = US"SPF_server_new() failed";
43 return (void *) spf_server;
47 spf_close(void *handle)
49 SPF_server_t *spf_server = handle;
50 if (spf_server) SPF_server_free(spf_server);
54 spf_find(void *handle, uschar *filename, uschar *keystring, int key_len,
55 uschar **result, uschar **errmsg, uint *do_cache)
57 SPF_server_t *spf_server = handle;
58 SPF_request_t *spf_request = NULL;
59 SPF_response_t *spf_response = NULL;
61 spf_request = SPF_request_new(spf_server);
62 if (spf_request == NULL) {
63 *errmsg = US"SPF_request_new() failed";
67 if (SPF_request_set_ipv4_str(spf_request, CS filename)) {
68 *errmsg = string_sprintf("invalid IP address '%s'", filename);
71 if (SPF_request_set_env_from(spf_request, CS keystring)) {
72 *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
76 SPF_request_query_mailfrom(spf_request, &spf_response);
77 *result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
78 SPF_response_free(spf_response);
79 SPF_request_free(spf_request);
84 /*************************************************
85 * Version reporting entry point *
86 *************************************************/
88 /* See local README for interface description. */
90 #include "../version.h"
93 spf_version_report(FILE *f)
96 fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR);
101 static lookup_info _lookup_info = {
102 US"spf", /* lookup name */
103 0, /* not absfile, not query style */
104 spf_open, /* open function */
105 NULL, /* no check function */
106 spf_find, /* find function */
107 spf_close, /* close function */
108 NULL, /* no tidy function */
109 NULL, /* no quoting function */
110 spf_version_report /* version reporting */
114 #define spf_lookup_module_info _lookup_module_info
117 static lookup_info *_lookup_list[] = { &_lookup_info };
118 lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
120 #endif /* EXPERIMENTAL_SPF */