SSL: fixed ssl_buffer_size on SNI virtual hosts (ticket #1192). Previously, buffer size was not changed from the one saved during initial ngx_ssl_create_connection(), even if the buffer itself was not yet created. Fix is to change c->ssl->buffer_size in the SNI callback. Note that it should be also possible to update buffer size even in non-SNI virtual hosts as long as the buffer is not yet allocated. This looks like an overcomplication though.

--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -884,6 +884,8 @@ ngx_http_ssl_servername(ngx_ssl_conn_t *
 
     sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_ssl_module);
 
+    c->ssl->buffer_size = sscf->buffer_size;
+
     if (sscf->ssl.ctx) {
         SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);