util.h

ping代码的封装

/**
 * UTILITY header
 *
 * Copyright (C) 2001 Jeffrey Fulmer <[e-mail]>
 * This file is part of LIBPING
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */
#ifndef UTIL_H
#define UTIL_H

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif/*HAVE_CONFIG_H*/ 

#ifdef  HAVE_SYS_TIMES_H
# include <sys/times.h>
#endif/*HAVE_SYS_TIMES_H*/
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif /*HAVE_SYS_TIME_H*/
#endif  /*TIME_WITH_SYS_TIME*/  

int elapsed_time( struct timeval *starttime );

char * substring( char *, int, int );

#endif  /* UTIL_H */