logger.cpp

来自「包含客户和服务器的升级程序,在linux下可以运行的.」· C++ 代码 · 共 31 行

/*
 * Copyright (C) 2006, Binary Ma
 * Licence: GNU GPL 1991 - version 2
 * Bug report: [e-mail]
*/

#include "logger.h"
#include <fcntl.h>
#include <unistd.h>
#include <string>
#include <syslog.h>

static const char* VERSION = "0.6.2";

int duplog( const char* ident, const char* log )
{
    if( NULL == log )
        return -__LINE__;

    int logfd = open( log, O_RDWR | O_CREAT | O_APPEND, 0644 );
    if( -1 == logfd )
        return -__LINE__;
	
    if( -1 == dup2( logfd, STDERR_FILENO ) )
        return -__LINE__;
	
    close( logfd );
    openlog( ident, LOG_NDELAY | LOG_PERROR | LOG_PID, LOG_DAEMON );
    return 0;
}