# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1397837601 -14400
# Node ID 94ae92776441bea89fb32e887541c4888abaa166
# Parent  3b48f9e69e70a36dd2f0bfa6f2d5dfdab5fabd8a
SSL: $ssl_server_name variable.

diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -2545,6 +2545,28 @@ ngx_ssl_get_session_reused(ngx_connectio
 
 
 ngx_int_t
+ngx_ssl_get_server_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
+{
+#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
+
+    const char  *servername;
+
+    servername = SSL_get_servername(c->ssl->connection,
+                                    TLSEXT_NAMETYPE_host_name);
+    if (servername) {
+        s->data = (u_char *) servername;
+        s->len = ngx_strlen(servername);
+        return NGX_OK;
+    }
+
+#endif
+
+    s->len = 0;
+    return NGX_OK;
+}
+
+
+ngx_int_t
 ngx_ssl_get_raw_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
 {
     size_t   len;
diff --git a/src/event/ngx_event_openssl.h b/src/event/ngx_event_openssl.h
--- a/src/event/ngx_event_openssl.h
+++ b/src/event/ngx_event_openssl.h
@@ -159,6 +159,8 @@ ngx_int_t ngx_ssl_get_session_id(ngx_con
     ngx_str_t *s);
 ngx_int_t ngx_ssl_get_session_reused(ngx_connection_t *c, ngx_pool_t *pool,
     ngx_str_t *s);
+ngx_int_t ngx_ssl_get_server_name(ngx_connection_t *c, ngx_pool_t *pool,
+    ngx_str_t *s);
 ngx_int_t ngx_ssl_get_raw_certificate(ngx_connection_t *c, ngx_pool_t *pool,
     ngx_str_t *s);
 ngx_int_t ngx_ssl_get_certificate(ngx_connection_t *c, ngx_pool_t *pool,
diff --git a/src/http/modules/ngx_http_ssl_module.c b/src/http/modules/ngx_http_ssl_module.c
--- a/src/http/modules/ngx_http_ssl_module.c
+++ b/src/http/modules/ngx_http_ssl_module.c
@@ -273,6 +273,9 @@ static ngx_http_variable_t  ngx_http_ssl
     { ngx_string("ssl_session_reused"), NULL, ngx_http_ssl_variable,
       (uintptr_t) ngx_ssl_get_session_reused, NGX_HTTP_VAR_CHANGEABLE, 0 },
 
+    { ngx_string("ssl_server_name"), NULL, ngx_http_ssl_variable,
+      (uintptr_t) ngx_ssl_get_server_name, NGX_HTTP_VAR_CHANGEABLE, 0 },
+
     { ngx_string("ssl_client_cert"), NULL, ngx_http_ssl_variable,
       (uintptr_t) ngx_ssl_get_certificate, NGX_HTTP_VAR_CHANGEABLE, 0 },