- 001
- 002
- 003
- 004
- 005
- 006
- 007
- 008
- 009
- 010
- 011
- 012
- 013
- 014
- 015
- 016
- 017
- 018
- 019
- 020
- 021
- 022
- 023
- 024
- 025
- 026
- 027
- 028
- 029
- 030
- 031
- 032
- 033
- 034
- 035
- 036
- 037
- 038
- 039
- 040
- 041
- 042
- 043
- 044
- 045
- 046
- 047
- 048
- 049
- 050
- 051
- 052
- 053
- 054
- 055
- 056
- 057
- 058
- 059
- 060
- 061
- 062
- 063
- 064
- 065
- 066
- 067
- 068
- 069
- 070
- 071
- 072
- 073
- 074
- 075
- 076
- 077
- 078
- 079
- 080
- 081
- 082
- 083
- 084
- 085
- 086
- 087
- 088
- 089
- 090
- 091
- 092
- 093
- 094
- 095
- 096
- 097
- 098
- 099
- 100
/*++
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 [email protected] 14-06-1995
[Environment:]
[Notes:]
Revision History:
22-Aug-1995 [email protected]
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,
Комментарии (0) RSS
Добавить комментарий