view src/os/win32/ngx_event_log.c @ 6858:f39ceadf0441

Win32: minimized redefinition of intptr_t/uintptr_t. These types are available with MSVC (at least since 2003, in stddef.h), all variants of GCC (in stdint.h) and Watcom C. We need to define them only for Borland C.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 24 Dec 2016 18:01:14 +0300
parents d620f497c50f
children
line wrap: on
line source

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


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


#define NGX_MAX_ERROR_STR   2048


void ngx_cdecl
ngx_event_log(ngx_err_t err, const char *fmt, ...)
{
    u_char         *p, *last;
    long            types;
    HKEY            key;
    HANDLE          ev;
    va_list         args;
    u_char          text[NGX_MAX_ERROR_STR];
    const char     *msgarg[9];
    static u_char   netmsg[] = "%SystemRoot%\\System32\\netmsg.dll";

    last = text + NGX_MAX_ERROR_STR;
    p = text + GetModuleFileName(NULL, (char *) text, NGX_MAX_ERROR_STR - 50);

    *p++ = ':';
    ngx_linefeed(p);

    va_start(args, fmt);
    p = ngx_vslprintf(p, last, fmt, args);
    va_end(args);

    if (err) {
        p = ngx_log_errno(p, last, err);
    }

    if (p > last - NGX_LINEFEED_SIZE - 1) {
        p = last - NGX_LINEFEED_SIZE - 1;
    }

    ngx_linefeed(p);

    *p = '\0';

    /*
     * we do not log errors here since we use
     * Event Log only to log our own logs open errors
     */

    if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
           "SYSTEM\\CurrentControlSet\\Services\\EventLog\\Application\\nginx",
           0, NULL, REG_OPTION_NON_VOLATILE, KEY_SET_VALUE, NULL, &key, NULL)
        != 0)
    {
        return;
    }

    if (RegSetValueEx(key, "EventMessageFile", 0, REG_EXPAND_SZ,
                      netmsg, sizeof(netmsg) - 1)
        != 0)
    {
        return;
    }

    types = EVENTLOG_ERROR_TYPE;

    if (RegSetValueEx(key, "TypesSupported", 0, REG_DWORD,
                      (u_char *) &types, sizeof(long))
        != 0)
    {
        return;
    }

    RegCloseKey(key);

    ev = RegisterEventSource(NULL, "nginx");

    msgarg[0] = (char *) text;
    msgarg[1] = NULL;
    msgarg[2] = NULL;
    msgarg[3] = NULL;
    msgarg[4] = NULL;
    msgarg[5] = NULL;
    msgarg[6] = NULL;
    msgarg[7] = NULL;
    msgarg[8] = NULL;

    /*
     * the 3299 event id in netmsg.dll has the generic message format:
     *     "%1 %2 %3 %4 %5 %6 %7 %8 %9"
     */

    ReportEvent(ev, EVENTLOG_ERROR_TYPE, 0, 3299, NULL, 9, 0, msgarg, NULL);

    DeregisterEventSource(ev);
}