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Added safety belt for the case of sending header twice.

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The aforementioned situation is abnormal per se and as such it now forces
request termination with appropriate error message.
This commit is contained in:
Sergey Kandaurov 2013-07-30 15:04:46 +04:00
parent 2b2def7891
commit 0fea0bf3f7
1 changed files with 6 additions and 0 deletions
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6
src/http/ngx_http_core_module.c
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@ -1933,6 +1933,12 @@ ngx_http_send_response(ngx_http_request_t *r, ngx_uint_t status,
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;