Fixed returned value handling from the cookie rewrite handler. If the "proxy_cookie_domain" or "proxy_cookie_path" directive is used and there are no matches in Set-Cookie header then ngx_http_proxy_rewrite_cookie() returns NGX_DECLINED to indicate that the header was not rewritten. Returning this value further from the upstream headers copy handler resulted in 500 error response. See here for report: http://mailman.nginx.org/pipermail/nginx/2012-May/033858.html

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


#include <ngx_config.h>
#include <ngx_core.h>


int
ngx_nonblocking(ngx_socket_t s)
{
    unsigned long  nb = 1;

    return ioctlsocket(s, FIONBIO, &nb);
}


int
ngx_blocking(ngx_socket_t s)
{
    unsigned long  nb = 0;

    return ioctlsocket(s, FIONBIO, &nb);
}


int
ngx_tcp_push(ngx_socket_t s)
{
    return 0;
}