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diff src/http/ngx_http_core_module.c @ 5334:03ff14058272

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Added safety belt for the case of sending header twice. The aforementioned situation is abnormal per se and as such it now forces request termination with appropriate error message.
author Sergey Kandaurov <pluknet@nginx.com>
date Tue, 30 Jul 2013 15:04:46 +0400
parents 314c3d7cc3a5
children ee2a4c68fb35
line wrap: on
line diff
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -1933,6 +1933,12 @@ ngx_http_send_response(ngx_http_request_
 ngx_int_t
 ngx_http_send_header(ngx_http_request_t *r)
 {
+    if (r->header_sent) {
+        ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
+                      "header already sent");
+        return NGX_ERROR;
+    }
+
     if (r->err_status) {
         r->headers_out.status = r->err_status;
         r->headers_out.status_line.len = 0;