-/* $Cambridge: exim/src/src/lookups/spf.c,v 1.2 2005/06/27 18:01:02 tom Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/*
- * Exim - SPF lookup module using libspf2
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- */
+/* Exim - SPF lookup module using libspf2
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Copyright (c) The Exim Maintainers 2020 - 2022
+Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd
+SPDX-License-Identifier: GPL-2.0-or-later
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+*/
#include "../exim.h"
-#ifndef EXPERIMENTAL_SPF
-static void dummy(int x) { dummy(x-1); }
+#ifndef SUPPORT_SPF
+static void dummy(int x);
+static void dummy2(int x) { dummy(x-1); }
+static void dummy(int x) { dummy2(x-1); }
#else
#include "lf_functions.h"
-#include "spf.h"
-#ifndef HAVE_NS_TYPE
-#define HAVE_NS_TYPE
+#if !defined(HAVE_NS_TYPE) && defined(NS_INADDRSZ)
+# define HAVE_NS_TYPE
#endif
#include <spf2/spf.h>
#include <spf2/spf_dns_resolv.h>
#include <spf2/spf_dns_cache.h>
-void *spf_open(uschar *filename, uschar **errmsg) {
- SPF_server_t *spf_server = NULL;
- spf_server = SPF_server_new(SPF_DNS_CACHE, 0);
- if (spf_server == NULL) {
- *errmsg = US"SPF_server_new() failed";
- return NULL;
+extern SPF_dns_server_t * SPF_dns_exim_new(int);
+
+
+static void *
+spf_open(const uschar * filename, uschar ** errmsg)
+{
+SPF_dns_server_t * dc;
+SPF_server_t *spf_server = NULL;
+int debug = 0;
+
+DEBUG(D_lookup) debug = 1;
+
+if ((dc = SPF_dns_exim_new(debug)))
+ if ((dc = SPF_dns_cache_new(dc, NULL, debug, 8)))
+ spf_server = SPF_server_new_dns(dc, debug);
+
+if (!spf_server)
+ {
+ *errmsg = US"SPF_dns_exim_nnew() failed";
+ return NULL;
}
- return (void *) spf_server;
+return (void *) spf_server;
}
-void spf_close(void *handle) {
- SPF_server_t *spf_server = handle;
- if (spf_server) SPF_server_free(spf_server);
+
+static void
+spf_close(void *handle)
+{
+SPF_server_t *spf_server = handle;
+if (spf_server) SPF_server_free(spf_server);
}
-int spf_find(void *handle, uschar *filename, uschar *keystring, int key_len,
- uschar **result, uschar **errmsg, BOOL *do_cache) {
- SPF_server_t *spf_server = handle;
- SPF_request_t *spf_request = NULL;
- SPF_response_t *spf_response = NULL;
+static int
+spf_find(void * handle, const uschar * filename, const uschar * keystring,
+ int key_len, uschar ** result, uschar ** errmsg, uint * do_cache,
+ const uschar * opts)
+{
+SPF_server_t *spf_server = handle;
+SPF_request_t *spf_request;
+SPF_response_t *spf_response = NULL;
- spf_request = SPF_request_new(spf_server);
- if (spf_request == NULL) {
- *errmsg = US"SPF_request_new() failed";
- return FAIL;
+if (!(spf_request = SPF_request_new(spf_server)))
+ {
+ *errmsg = US"SPF_request_new() failed";
+ return FAIL;
}
- if (SPF_request_set_ipv4_str(spf_request, filename)) {
- *errmsg = string_sprintf("invalid IP address '%s'", filename);
+#if HAVE_IPV6
+switch (string_is_ip_address(filename, NULL))
+#else
+switch (4)
+#endif
+ {
+ case 4:
+ if (!SPF_request_set_ipv4_str(spf_request, CS filename))
+ break;
+ *errmsg = string_sprintf("invalid IPv4 address '%s'", filename);
return FAIL;
- }
- if (SPF_request_set_env_from(spf_request, keystring)) {
- *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
+#if HAVE_IPV6
+
+ case 6:
+ if (!SPF_request_set_ipv6_str(spf_request, CS filename))
+ break;
+ *errmsg = string_sprintf("invalid IPv6 address '%s'", filename);
return FAIL;
+
+ default:
+ *errmsg = string_sprintf("invalid IP address '%s'", filename);
+ return FAIL;
+#endif
}
- SPF_request_query_mailfrom(spf_request, &spf_response);
- *result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
- SPF_response_free(spf_response);
- SPF_request_free(spf_request);
- return OK;
+if (SPF_request_set_env_from(spf_request, CS keystring))
+ {
+ *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
+ return FAIL;
}
-#endif /* EXPERIMENTAL_SPF */
+SPF_request_query_mailfrom(spf_request, &spf_response);
+*result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
+
+DEBUG(D_lookup) spf_response_debug(spf_response);
+
+SPF_response_free(spf_response);
+SPF_request_free(spf_request);
+return OK;
+}
+
+
+/*************************************************
+* Version reporting entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+gstring *
+spf_version_report(gstring * g)
+{
+#ifdef DYNLOOKUP
+g = string_fmt_append(g, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR));
+#endif
+return g;
+}
+
+
+static lookup_info _lookup_info = {
+ .name = US"spf", /* lookup name */
+ .type = 0, /* not absfile, not query style */
+ .open = spf_open, /* open function */
+ .check = NULL, /* no check function */
+ .find = spf_find, /* find function */
+ .close = spf_close, /* close function */
+ .tidy = NULL, /* no tidy function */
+ .quote = NULL, /* no quoting function */
+ .version_report = spf_version_report /* version reporting */
+};
+
+#ifdef DYNLOOKUP
+#define spf_lookup_module_info _lookup_module_info
+#endif
+
+static lookup_info *_lookup_list[] = { &_lookup_info };
+lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
+
+#endif /* SUPPORT_SPF */
git://git.exim.org / exim.git / blobdiff