xmllog.c

《unix/Linux下的Curses库开发指南》综合示例程序

/*
 *  xmllog.c
 *  转换交易参数XML日志文件
 *
 *  Copyright (c) 2000vicsun
 *  1 chedaogou haidian
 *  Beijing, CHN 100089
 *
 *  ALL RIGHTS RESERVED.
 *
 *  sunrise    Version 1.0
 *  create     Jun, 20 2000     JEM 
 *
 *  Unauthorized distribution, adaptation or use may be
 *  subject to civil and criminal penalties.
 *
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <varargs.h>

int GetFileSize( char * filename );

void xmllog( filename, file, line , va_alist ) 
char  * filename;
char  * file;
int   line; 
va_dcl
{
    va_list    ap;
    char       * fmt;
    int        i;
    char       str[80];
    char       cmd[100];
    char       logfile[80];
    FILE       * fp;

    #ifndef  DEBUG
        return ;
    #endif

    sprintf( (char *)logfile, "%s/front/log/%s", (char *)getenv( "FAPWORKDIR" ),
             filename );

    if ( ((int)GetFileSize( logfile )) > 3000000 )
    {
        sprintf( cmd, "rm -f %s >/dev/null 2>&1", logfile );
        system( cmd );
    }

    memset( str, '*', 78 );
    str[78]='\n';
    str[79]='\0';

    va_start( ap ); 
    fp = fopen( logfile, "a+");
 
    fprintf( fp, "%s", str );
    fprintf( fp, "[%s:%d]", file ,line );

    fmt = va_arg( ap, char * );

    ( void ) vfprintf( fp, fmt, ap );

    memset( str, '*', 79 );
    str[78]='\n';
    str[79]='\0';

    fprintf( fp, "\n%s", str );
    fclose( fp );
    va_end( ap );
}