nhtol和htonl的转换问题(100分)

L

lixiaohui

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2006-08-22

• #1

var
a,b,c:longword;
begin
a:=3031114548;
showmessage(inttostr(ntohl(a)));
b:=874752948;
showmessage(inttostr(htonl(b)));
为什么3031114548经过ntohl后转换成了874752948，但是874752948经过htonl后却不能转换成3031114548？请赐教，谢谢

 

L

lixiaohui

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2006-08-22

• #2

请指教

 

J

jingtao

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2006-08-22

• #3

Winsock.pas定义有错误.这个我以前论坛有说过的了.请自行修改Winsock.pas

type
u_long = LongWord;//原来为Longint
或者干脆自己定义
function ntohl2(netlong: DWORD): DWORD; stdcall; external 'ws2_32.dll' name 'ntohl';

function htonl2(hostlong: DWORD): DWORD; stdcall; external 'ws2_32.dll' name 'htonl';

我几年前搞TCP裸数据排序就遇到过这问题.很吐血.

 

C

cqwty

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2006-08-22

• #4

高手，学习学习！

 

L

lixiaohui

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2006-08-22

• #5

function ntohl2(netlong: DWORD): DWORD; stdcall; external 'ws2_32.dll' name 'ntohl';

function htonl2(hostlong: DWORD): DWORD; stdcall; external 'ws2_32.dll' name 'htonl';
重新定义是可以的，
type
u_long = LongWord;//原来为Longint
我试了试不行啊