mirror of
https://github.com/moparisthebest/curl
synced 2024-11-13 21:15:08 -05:00
98 lines
3.3 KiB
C
98 lines
3.3 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at http://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#if defined(USE_SSLEAY) || defined(USE_AXTLS) || defined(USE_QSOSSL) || \
|
|
defined(USE_GSKIT)
|
|
/* these backends use functions from this file */
|
|
|
|
#include "hostcheck.h"
|
|
#include "rawstr.h"
|
|
|
|
/*
|
|
* Match a hostname against a wildcard pattern.
|
|
* E.g.
|
|
* "foo.host.com" matches "*.host.com".
|
|
*
|
|
* We use the matching rule described in RFC6125, section 6.4.3.
|
|
* http://tools.ietf.org/html/rfc6125#section-6.4.3
|
|
*/
|
|
|
|
static int hostmatch(const char *hostname, const char *pattern)
|
|
{
|
|
const char *pattern_label_end, *pattern_wildcard, *hostname_label_end;
|
|
int wildcard_enabled;
|
|
size_t prefixlen, suffixlen;
|
|
pattern_wildcard = strchr(pattern, '*');
|
|
if(pattern_wildcard == NULL)
|
|
return Curl_raw_equal(pattern, hostname) ?
|
|
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
|
|
|
|
/* We require at least 2 dots in pattern to avoid too wide wildcard
|
|
match. */
|
|
wildcard_enabled = 1;
|
|
pattern_label_end = strchr(pattern, '.');
|
|
if(pattern_label_end == NULL || strchr(pattern_label_end+1, '.') == NULL ||
|
|
pattern_wildcard > pattern_label_end ||
|
|
Curl_raw_nequal(pattern, "xn--", 4)) {
|
|
wildcard_enabled = 0;
|
|
}
|
|
if(!wildcard_enabled)
|
|
return Curl_raw_equal(pattern, hostname) ?
|
|
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
|
|
|
|
hostname_label_end = strchr(hostname, '.');
|
|
if(hostname_label_end == NULL ||
|
|
!Curl_raw_equal(pattern_label_end, hostname_label_end))
|
|
return CURL_HOST_NOMATCH;
|
|
|
|
/* The wildcard must match at least one character, so the left-most
|
|
label of the hostname is at least as large as the left-most label
|
|
of the pattern. */
|
|
if(hostname_label_end - hostname < pattern_label_end - pattern)
|
|
return CURL_HOST_NOMATCH;
|
|
|
|
prefixlen = pattern_wildcard - pattern;
|
|
suffixlen = pattern_label_end - (pattern_wildcard+1);
|
|
return Curl_raw_nequal(pattern, hostname, prefixlen) &&
|
|
Curl_raw_nequal(pattern_wildcard+1, hostname_label_end - suffixlen,
|
|
suffixlen) ?
|
|
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
|
|
}
|
|
|
|
int Curl_cert_hostcheck(const char *match_pattern, const char *hostname)
|
|
{
|
|
if(!match_pattern || !*match_pattern ||
|
|
!hostname || !*hostname) /* sanity check */
|
|
return 0;
|
|
|
|
if(Curl_raw_equal(hostname, match_pattern)) /* trivial case */
|
|
return 1;
|
|
|
|
if(hostmatch(hostname,match_pattern) == CURL_HOST_MATCH)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
#endif /* SSLEAY or AXTLS or QSOSSL or GSKIT */
|