nginx-0.1.29-RELEASE import *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; the bug had appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.

/*
 * Copyright (C) Igor Sysoev
 */


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


char ngx_linux_kern_ostype[50];
char ngx_linux_kern_osrelease[20];

int ngx_linux_rtsig_max;


ngx_os_io_t ngx_os_io = {
    ngx_unix_recv,
    ngx_readv_chain,
    ngx_unix_send,
#if (NGX_HAVE_SENDFILE)
    ngx_linux_sendfile_chain,
    NGX_IO_SENDFILE
#else
    ngx_writev_chain,
    0
#endif
};


ngx_int_t
ngx_os_init(ngx_log_t *log)
{
    int        name[2];
    size_t     len;
    ngx_err_t  err;

    name[0] = CTL_KERN;
    name[1] = KERN_OSTYPE;
    len = sizeof(ngx_linux_kern_ostype);

    if (sysctl(name, 2, ngx_linux_kern_ostype, &len, NULL, 0) == -1) {
        ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
                      "sysctl(KERN_OSTYPE) failed");
        return NGX_ERROR;
    }

    /* name[0] = CTL_KERN; */
    name[1] = KERN_OSRELEASE;
    len = sizeof(ngx_linux_kern_osrelease);

    if (sysctl(name, 2, ngx_linux_kern_osrelease, &len, NULL, 0) == -1) {
        ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
                      "sysctl(KERN_OSRELEASE) failed");
        return NGX_ERROR;
    }


    /* name[0] = CTL_KERN; */
    name[1] = KERN_RTSIGMAX;
    len = sizeof(ngx_linux_rtsig_max);

    if (sysctl(name, 2, &ngx_linux_rtsig_max, &len, NULL, 0) == -1) {
        err = ngx_errno;

        if (err != NGX_ENOTDIR) {
            ngx_log_error(NGX_LOG_ALERT, log, err,
                          "sysctl(KERN_RTSIGMAX) failed");

            return NGX_ERROR;
        }

        ngx_linux_rtsig_max = 0;
    }


    return ngx_posix_init(log);
}


void
ngx_os_status(ngx_log_t *log)
{
    ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s",
                  ngx_linux_kern_ostype, ngx_linux_kern_osrelease);

    ngx_log_error(NGX_LOG_INFO, log, 0, "sysctl(KERN_RTSIGMAX): %d",
                  ngx_linux_rtsig_max);


    ngx_posix_status(log);
}