Add SSL_get_client_certificate_types.

patches.chromium/0011-export_certificate_types.patch

+diff --git a/include/openssl/ssl.h b/include/openssl/ssl.h
+index a3944f1..7c5a4c9 100644
+--- a/include/openssl/ssl.h
++++ b/include/openssl/ssl.h
+@@ -1982,6 +1982,8 @@ STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
+ int SSL_add_client_CA(SSL *ssl,X509 *x);
+ int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x);
+ 
++void SSL_get_client_certificate_types(SSL *s, char **ctype, size_t *ctype_num);
++
+ void SSL_set_connect_state(SSL *s);
+ void SSL_set_accept_state(SSL *s);
+ 
+diff --git a/ssl/ssl.h b/ssl/ssl.h
+index a3944f1..7c5a4c9 100644
+--- a/ssl/ssl.h
++++ b/ssl/ssl.h
+@@ -1982,6 +1982,8 @@ STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
+ int SSL_add_client_CA(SSL *ssl,X509 *x);
+ int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x);
+ 
++void SSL_get_client_certificate_types(SSL *s, char **ctype, size_t *ctype_num);
++
+ void SSL_set_connect_state(SSL *s);
+ void SSL_set_accept_state(SSL *s);
+ 
+diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c
+index 5123a89..f9673c2 100644
+--- a/ssl/ssl_cert.c
++++ b/ssl/ssl_cert.c
+@@ -660,6 +660,22 @@ static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
+        return(X509_NAME_cmp(*a,*b));
+        }
+ 
++void SSL_get_client_certificate_types(SSL *s, char **ctype, size_t *ctype_num)
++       {
++       /* Nothing to return for the server or SSL2. */
++       if (s->type != SSL_ST_CONNECT ||
++               ((s->version >> 8) != SSL3_VERSION_MAJOR) ||
++               (s->s3 == NULL))
++               {
++               *ctype = NULL;
++               *ctype_num = 0;
++               return;
++               }
++
++       *ctype = s->s3->tmp.ctype;
++       *ctype_num = s->s3->tmp.ctype_num;
++       }
++
+ #ifndef OPENSSL_NO_STDIO
+ /*!
+  * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;