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/*++


    Intel Corporation Proprietary Information
    Copyright (c) 1995 Intel Corporation

    This listing is supplied under the terms of a license agreement with
    Intel Corporation and may not be used, copied, nor disclosed except in
    accordance with the terms of that agreeement.


Module Name:

    addrconv.c

Abstract:

    This module contains the address conversion routines from the
    winsock2 API. This module contains the following functions.

    htonl()
    htons()
    ntohl()
    ntohs()
    inet_addr()
    inet_ntoa()
    WSAHtonl()
    WSAHtons()
    WSANtohl()
    WSANtohs()


Author:

    Dirk Brandewie <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="56323f243d163b3f383d783f3822333a7835393b">[email protected]</a>  14-06-1995

[Environment:]

[Notes:]

Revision History:

    22-Aug-1995 <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="adc9c4dfc6edc0c4c3c683c4c3d9c8c183cec2c0">[email protected]</a>
        Cleanup after code review. Moved includes to precomp.h

--*/

#include "precomp.h"

// these defines are used to check if address parts are in range
#define MAX_EIGHT_BIT_VALUE       0xff
#define MAX_SIXTEEN_BIT_VALUE     0xffff
#define MAX_TWENTY_FOUR_BIT_VALUE 0xffffff

// Defines for different based numbers in an address
#define BASE_TEN     10
#define BASE_EIGHT   8
#define BASE_SIXTEEN 16

//
// Macros for swapping the bytes in a long and a short.
//

#define SWAP_LONG(l)                                \
            ( ( ((l) >> 24) & 0x000000FFL ) |       \
              ( ((l) >>  8) & 0x0000FF00L ) |       \
              ( ((l) <<  8) & 0x00FF0000L ) |       \
              ( ((l) << 24) & 0xFF000000L ) )

#define WS_SWAP_SHORT(s)                            \
            ( ( ((s) >> 8) & 0x00FF ) |             \
              ( ((s) << 8) & 0xFF00 ) )

//
// This preinitialized array defines the strings to be used for
// inet_ntoa.  The index of each row corresponds to the value for a byte
// in an IP address.  The first three bytes of each row are the
// char/string value for the byte, and the fourth byte in each row is
// the length of the string required for the byte.  This approach
// allows a fast implementation with no jumps.
//

BYTE NToACharStrings[][4] = {
    '0', 'x', 'x', 1,
    '1', 'x', 'x', 1,
    '2', 'x', 'x', 1,
    '3', 'x', 'x', 1,
    '4', 'x', 'x', 1,
    '5', 'x', 'x', 1,
    '6', 'x', 'x', 1,
    '7', 'x', 'x', 1,
    '8', 'x', 'x', 1,
    '9', 'x', 'x', 1,
    '1', '0', 'x', 2,
    '1', '1', 'x', 2,
    '1', '2', 'x', 2,
    '1', '3', 'x', 2,
    '1', '4', 'x', 2,
    '1', '5', 'x', 2,
    '1', '6', 'x', 2,