static int verify_hostname(X509 *cert, const char *hostname)
{
int len;
X509_NAME *subj;
char cname[1000];
int i, found;
STACK_OF(GENERAL_NAME) *subj_alt_names;
/* try the DNS subjectAltNames */
found = 0;
if ((subj_alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL))) {
int num_subj_alt_names = sk_GENERAL_NAME_num(subj_alt_names);
for (i = 0; !found && i < num_subj_alt_names; i++) {
GENERAL_NAME *subj_alt_name = sk_GENERAL_NAME_value(subj_alt_names, i);
if (subj_alt_name->type == GEN_DNS &&
strlen((const char *)subj_alt_name->d.ia5->data) == (size_t)subj_alt_name->d.ia5->length &&
host_matches(hostname, (const char *)(subj_alt_name->d.ia5->data)))
found = 1;
}
sk_GENERAL_NAME_pop_free(subj_alt_names, GENERAL_NAME_free);
}
if (found)
return 0;
/* try the common name */
if (!(subj = X509_get_subject_name(cert)))
return error("cannot get certificate subject");
if ((len = X509_NAME_get_text_by_NID(subj, NID_commonName, cname, sizeof(cname))) < 0)
return error("cannot get certificate common name");
if (strlen(cname) == (size_t)len && host_matches(hostname, cname))
return 0;
return error("certificate owner '%s' does not match hostname '%s'",
cname, hostname);
}
int ip_match(const struct pattern_spec *pattern,
const struct http_request *http)
{
if (!(pattern->flags & PATTERN_SPEC_URL_PATTERN))
{
/* It's not an URL pattern and thus shouldn't be matched against URLs */
return 0;
}
return (port_matches(http->port, pattern->pattern.url_spec.port_list)
&& host_matches(http, pattern) && path_matches(http->path, pattern));
}
