X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/8e669ac162fe3b1040297f1d021de10778dce9d9..HEAD:/src/src/spf.c diff --git a/src/src/spf.c b/src/src/spf.c deleted file mode 100644 index 1ef222aff..000000000 --- a/src/src/spf.c +++ /dev/null @@ -1,131 +0,0 @@ -/* $Cambridge: exim/src/src/spf.c,v 1.3 2005/02/17 11:58:26 ph10 Exp $ */ - -/************************************************* -* Exim - an Internet mail transport agent * -*************************************************/ - -/* Experimental SPF support. - Copyright (c) Tom Kistner 2004 - License: GPL */ - -/* Code for calling spf checks via libspf-alt. Called from acl.c. */ - -#include "exim.h" -#ifdef EXPERIMENTAL_SPF - -/* #include "spf.h" */ - -SPF_config_t spfcid = NULL; -SPF_dns_config_t spfdcid_resolv = NULL; -SPF_dns_config_t spfdcid = NULL; - - -/* spf_init sets up a context that can be re-used for several - messages on the same SMTP connection (that come from the - same host with the same HELO string) */ - -int spf_init(uschar *spf_helo_domain, uschar *spf_remote_addr) { - uschar *p; - - /* paranoia */ - spfcid = NULL; - spfdcid_resolv = NULL; - spfdcid = NULL; - - spfcid = SPF_create_config(); - if ( spfcid == NULL ) { - debug_printf("spf: SPF_create_config() failed.\n"); - return 0; - } - - /* set up resolver */ - spfdcid_resolv = SPF_dns_create_config_resolv(NULL, 0); - spfdcid = SPF_dns_create_config_cache(spfdcid_resolv, 8, 0); - - if (spfdcid == NULL) { - debug_printf("spf: SPF_dns_create_config_cache() failed.\n"); - spfcid = NULL; - spfdcid_resolv = NULL; - return 0; - } - - if (SPF_set_ip_str(spfcid, spf_remote_addr)) { - debug_printf("spf: SPF_set_ip_str() failed.\n"); - spfcid = NULL; - spfdcid_resolv = NULL; - return 0; - } - - if (SPF_set_helo_dom(spfcid, spf_helo_domain)) { - debug_printf("spf: SPF_set_helo_dom() failed.\n"); - spfcid = NULL; - spfdcid_resolv = NULL; - return 0; - } - - return 1; -} - - -/* spf_process adds the envelope sender address to the existing - context (if any), retrieves the result, sets up expansion - strings and evaluates the condition outcome. */ - -int spf_process(uschar **listptr, uschar *spf_envelope_sender) { - int sep = 0; - uschar *list = *listptr; - uschar *spf_result_id; - uschar spf_result_id_buffer[128]; - SPF_output_t spf_output; - int rc = SPF_RESULT_ERROR; - - if (!(spfcid && spfdcid)) { - /* no global context, assume temp error and skip to evaluation */ - rc = SPF_RESULT_ERROR; - goto SPF_EVALUATE; - }; - - if (SPF_set_env_from(spfcid, spf_envelope_sender)) { - /* Invalid sender address. This should be a real rare occurence */ - rc = SPF_RESULT_ERROR; - goto SPF_EVALUATE; - } - - /* get SPF result */ - spf_output = SPF_result(spfcid, spfdcid); - - /* set up expansion items */ - spf_header_comment = spf_output.header_comment ? (uschar *)spf_output.header_comment : NULL; - spf_received = spf_output.received_spf ? (uschar *)spf_output.received_spf : NULL; - spf_result = (uschar *)SPF_strresult(spf_output.result); - spf_smtp_comment = spf_output.smtp_comment ? (uschar *)spf_output.smtp_comment : NULL; - - rc = spf_output.result; - - /* We got a result. Now see if we should return OK or FAIL for it */ - SPF_EVALUATE: - debug_printf("SPF result is %s (%d)\n", SPF_strresult(rc), rc); - while ((spf_result_id = string_nextinlist(&list, &sep, - spf_result_id_buffer, - sizeof(spf_result_id_buffer))) != NULL) { - int negate = 0; - int result = 0; - - /* Check for negation */ - if (spf_result_id[0] == '!') { - negate = 1; - spf_result_id++; - }; - - /* Check the result identifier */ - result = Ustrcmp(spf_result_id, spf_result_id_list[rc].name); - if (!negate && result==0) return OK; - if (negate && result!=0) return OK; - }; - - /* no match */ - return FAIL; -} - -#endif -