Upstream: http_403 support in proxy_next_upstream (and friends). The parameter is mostly identical to http_404, and is expected to be used in similar situations. The 403 code might be returned by a backend instead of 404 on initial sync of new directories with rsync. See here for feature request and additional details: http://mailman.nginx.org/pipermail/nginx-ru/2013-April/050920.html

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_LINUX_H_INCLUDED_
#define _NGX_LINUX_H_INCLUDED_


ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
    off_t limit);

extern int ngx_linux_rtsig_max;


#endif /* _NGX_LINUX_H_INCLUDED_ */