Subversion Repositories openrisc_2011-10-31

/*

 * Copyright (c) 2004, Adam Dunkels and the Swedish Institute of

 * Computer Science.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. The name of the author may not be used to endorse or promote

 *    products derived from this software without specific prior

 *    written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 * This file is part of the uIP TCP/IP stack

 *

 * $Id: uiplib.c 2 2011-07-17 20:13:17Z filepang@gmail.com $

 *

 */

#include "uip.h"

#include "uiplib.h"

/*-----------------------------------------------------------------------------------*/

unsigned char uiplib_ipaddrconv( char *addrstr, unsigned char *ipaddr )

{

        unsigned char   tmp;

        char                    c;

        unsigned char   i, j;

        tmp = 0;

        for( i = 0; i < 4; ++i )

        {

                j = 0;

                do

                {

                        c = *addrstr;

                        ++j;

                        if( j > 4 )

                        {

                                return 0;

                        }

                        if( c == '.' || c == 0 )

                        {

                                *ipaddr = tmp;

                                ++ipaddr;

                                tmp = 0;

                        }

                        else if( c >= '0' && c <= '9' )

                        {

                                tmp = ( tmp * 10 ) + ( c - '0' );

                        }

                        else

                        {

                                return 0;

                        }

                        ++addrstr;

                } while( c != '.' && c != 0 );

        }

        return 1;

}

/*-----------------------------------------------------------------------------------*/