/*****************************************************************************************
 Copyright (c) 2002 The UbixOS Project
 All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are
permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of
conditions, the following disclaimer and the list of authors.  Redistributions in binary
form must reproduce the above copyright notice, this list of conditions, the following
disclaimer and the list of authors in the documentation and/or other materials provided
with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software
without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.

 $Log$
 Revision 1.4  2004/06/17 03:14:59  flameshadow
 chg: added missing #include for kprintf()

 Revision 1.3  2004/05/20 22:54:02  reddawg
 Cleaned Up Warrnings

 Revision 1.2  2004/04/30 14:16:04  reddawg
 Fixed all the datatypes to be consistant uInt8,uInt16,uInt32,Int8,Int16,Int32

 Revision 1.1.1.1  2004/04/15 12:07:10  reddawg
 UbixOS v1.0

 Revision 1.8  2004/04/13 21:29:52  reddawg
 We now have sockets working. Lots of functionality to be added to continually
 improve on the existing layers now its clean up time to get things in a better
 working order.

 Revision 1.7  2004/04/13 16:36:33  reddawg
 Changed our copyright, it is all now under a BSD-Style license



 $Id$

*****************************************************************************************/

#include <ubixos/types.h>
#include <lib/string.h>
#include <net/sockets.h>

#include "lib/kprintf.h"

#ifndef _IN_ADDR_T_DECLARED
typedef uInt32        in_addr_t;
#define _IN_ADDR_T_DECLARED
#endif

uInt32 htonl(uInt32 n) {
  uInt32 retVal = 0x0;
  retVal += ((n & 0xff) << 24); 
  retVal += ((n & 0xff00) << 8);
  retVal += ((n & 0xff0000) >> 8);
  retVal += ((n & 0xff000000) >> 24);
  return(retVal);
  }

uInt32 htons(uInt32 n) {
  uInt32 retVal = 0x0;
  retVal = (((n & 0xff) << 8) | ((n & 0xff00) >> 8));
  return(retVal);
  }

void bcopy(const void *src, void *dest, int len) {
  kmemcpy(dest,src,len);
  }

void bzero(void *data, int n) {
  kmemset(data, 0, n);
  }


int inet_aton(cp, addr)
        const char *cp;
        struct in_addr *addr;
{
        uInt32 parts[4];
        in_addr_t val;
        char *c;
        char *endptr;
        int gotend, n;

        c = (char *)cp;
        n = 0;
        /*
         * Run through the string, grabbing numbers until
         * the end of the string, or some error
         */
        gotend = 0;
        while (!gotend) {
                //errno = 0;
                val = strtol(c, &endptr, 0);
                kprintf("VAL: [%x]",val);

                //if (errno == ERANGE)    /* Fail completely if it overflowed. */
                //        return (0);

                /*
                 * If the whole string is invalid, endptr will equal
                 * c.. this way we can make sure someone hasn't
                 * gone '.12' or something which would get past
                 * the next check.
                 */
                if (endptr == c)
                        return (0);
                parts[n] = val;
                c = endptr;

                /* Check the next character past the previous number's end */
                switch (*c) {
                case '.' :
                        /* Make sure we only do 3 dots .. */
                        if (n == 3)     /* Whoops. Quit. */
                                return (0);
                        n++;
                        c++;
                        break;

                case '\0':
                        gotend = 1;
                        break;

                default:
                       /*
                        if (isspace((unsigned char)*c)) {
                                gotend = 1;
                                break;
                        } else
                       */
                                return (0);     /* Invalid character, so fail */
                }

        }

        /*
         * Concoct the address according to
         * the number of parts specified.
         */

        switch (n) {
        case 0:                         /* a -- 32 bits */
                /*
                 * Nothing is necessary here.  Overflow checking was
                 * already done in strtoul().
                 */
                break;
        case 1:                         /* a.b -- 8.24 bits */
                if (val > 0xffffff || parts[0] > 0xff)
                        return (0);
                val |= parts[0] << 24;
                break;

        case 2:                         /* a.b.c -- 8.8.16 bits */
                if (val > 0xffff || parts[0] > 0xff || parts[1] > 0xff)
                        return (0);
                val |= (parts[0] << 24) | (parts[1] << 16);
                break;

        case 3:                         /* a.b.c.d -- 8.8.8.8 bits */
                if (val > 0xff || parts[0] > 0xff || parts[1] > 0xff ||
                    parts[2] > 0xff)
                        return (0);
                val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
                break;
        }

        if (addr != NULL)
                addr->s_addr = htonl(val);
        return (1);
}

/***
 END
 ***/
  
