view src/os/unix/ngx_linux_init.c @ 7882:b4073527be81

Disabled control characters in URIs. Control characters (0x00-0x1f, 0x7f) were never allowed in URIs, and must be percent-encoded by clients. Further, these are not believed to appear in practice. On the other hand, passing such characters might make various attacks possible or easier, despite the fact that currently allowed control characters are not significant for HTTP request parsing.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 28 Jun 2021 18:01:15 +0300
parents 56fc55e32f23
children
line wrap: on
line source


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


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


u_char  ngx_linux_kern_ostype[50];
u_char  ngx_linux_kern_osrelease[50];


static ngx_os_io_t ngx_linux_io = {
    ngx_unix_recv,
    ngx_readv_chain,
    ngx_udp_unix_recv,
    ngx_unix_send,
    ngx_udp_unix_send,
    ngx_udp_unix_sendmsg_chain,
#if (NGX_HAVE_SENDFILE)
    ngx_linux_sendfile_chain,
    NGX_IO_SENDFILE
#else
    ngx_writev_chain,
    0
#endif
};


ngx_int_t
ngx_os_specific_init(ngx_log_t *log)
{
    struct utsname  u;

    if (uname(&u) == -1) {
        ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "uname() failed");
        return NGX_ERROR;
    }

    (void) ngx_cpystrn(ngx_linux_kern_ostype, (u_char *) u.sysname,
                       sizeof(ngx_linux_kern_ostype));

    (void) ngx_cpystrn(ngx_linux_kern_osrelease, (u_char *) u.release,
                       sizeof(ngx_linux_kern_osrelease));

    ngx_os_io = ngx_linux_io;

    return NGX_OK;
}


void
ngx_os_specific_status(ngx_log_t *log)
{
    ngx_log_error(NGX_LOG_NOTICE, log, 0, "OS: %s %s",
                  ngx_linux_kern_ostype, ngx_linux_kern_osrelease);
}