Commit | Line | Data |
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92f1b170 TK |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
5 | /* | |
6 | * Exim - SPF lookup module using libspf2 | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * | |
9 | * Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd | |
10 | * | |
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. | |
15 | * | |
16 | */ | |
17 | ||
18 | #include "../exim.h" | |
19 | ||
20 | #ifndef EXPERIMENTAL_SPF | |
21 | static void dummy(int x) { dummy(x-1); } | |
22 | #else | |
23 | ||
24 | #include "lf_functions.h" | |
56dda33c TK |
25 | #ifndef HAVE_NS_TYPE |
26 | #define HAVE_NS_TYPE | |
27 | #endif | |
92f1b170 TK |
28 | #include <spf2/spf.h> |
29 | #include <spf2/spf_dns_resolv.h> | |
30 | #include <spf2/spf_dns_cache.h> | |
31 | ||
e6d225ae | 32 | static void *spf_open(uschar *filename, uschar **errmsg) { |
92f1b170 TK |
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"; | |
37 | return NULL; | |
38 | } | |
39 | return (void *) spf_server; | |
40 | } | |
41 | ||
e6d225ae | 42 | static void spf_close(void *handle) { |
92f1b170 TK |
43 | SPF_server_t *spf_server = handle; |
44 | if (spf_server) SPF_server_free(spf_server); | |
45 | } | |
46 | ||
e6d225ae | 47 | static int spf_find(void *handle, uschar *filename, uschar *keystring, int key_len, |
92f1b170 TK |
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; | |
52 | ||
53 | spf_request = SPF_request_new(spf_server); | |
54 | if (spf_request == NULL) { | |
55 | *errmsg = US"SPF_request_new() failed"; | |
56 | return FAIL; | |
57 | } | |
58 | ||
ab75a2db | 59 | if (SPF_request_set_ipv4_str(spf_request, CS filename)) { |
92f1b170 TK |
60 | *errmsg = string_sprintf("invalid IP address '%s'", filename); |
61 | return FAIL; | |
62 | } | |
ab75a2db | 63 | if (SPF_request_set_env_from(spf_request, CS keystring)) { |
92f1b170 TK |
64 | *errmsg = string_sprintf("invalid envelope from address '%s'", keystring); |
65 | return FAIL; | |
66 | } | |
67 | ||
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); | |
72 | return OK; | |
73 | } | |
74 | ||
6545de78 PP |
75 | |
76 | /************************************************* | |
77 | * Version reporting entry point * | |
78 | *************************************************/ | |
79 | ||
80 | /* See local README for interface description. */ | |
81 | ||
82 | #include "../version.h" | |
83 | ||
84 | void | |
85 | spf_version_report(FILE *f) | |
86 | { | |
87 | #ifdef DYNLOOKUP | |
88 | fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR); | |
89 | #endif | |
90 | } | |
91 | ||
92 | ||
e6d225ae DW |
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 */ | |
6545de78 PP |
101 | NULL, /* no quoting function */ |
102 | spf_version_report /* version reporting */ | |
e6d225ae DW |
103 | }; |
104 | ||
105 | #ifdef DYNLOOKUP | |
106 | #define spf_lookup_module_info _lookup_module_info | |
107 | #endif | |
108 | ||
109 | static lookup_info *_lookup_list[] = { &_lookup_info }; | |
110 | lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 }; | |
111 | ||
92f1b170 | 112 | #endif /* EXPERIMENTAL_SPF */ |