MASM winsock错误？
MASM winsock错误？
提问于 2010-10-05 23:30:48
下面是一个使用MASM语法的winsock教程: Iczelion's Guide to Winsock Programming
我被卡住了，我收到一个错误，但我不知道如何修复它。问题是，每次我尝试使用套接字连接到服务器时，都会收到一个WSANOTSOCK错误(套接字操作是在非套接字上执行的)
但在调用WSAStartup()或Socket()时没有出现错误。那么这个错误现在怎么会出现在这里呢？
这是我目前正在使用的代码(我说我遵循了Iczelion的Winsock编程指南，但我已经修改了它以满足我的需要，我正在尝试创建一个irc机器人)
.386
.model flat, stdcall
option casemap: none
include \masm32\include\windows.inc
include \masm32\include\user32.inc
include \masm32\include\kernel32.inc
include \masm32\include\shell32.inc
include \masm32\include\wsock32.inc
include \masm32\include\masm32.inc
includelib \masm32\lib\shell32.lib
includelib \masm32\lib\user32.lib
includelib \masm32\lib\kernel32.lib
includelib \masm32\lib\wsock32.lib
includelib \masm32\lib\masm32.lib
.data
txt db "An error occured while calling WSAStartup",0
txt1 db "An error occured while creating a socket",0
txt2 db "An error occured while connecting",0
capt db "SCHiM",0
wsadata WSADATA <>
hostname db "irc.corruptcode.org",0
Port dd 6667
NICK db "NICK SCHiMBot",0
USER db "USER SCHIMR 8 * :SCHMRR",0
CHANNEL db "/join #botts",0
sin sockaddr_in <?>
.data?
sock dd ?
;ErrorCode dd ?
ErrorCode dd ?
.code
start:
invoke WSAStartup, 101h,addr wsadata
.if eax!=NULL ;An error occured if eax != null, because there's no return value for this api, if there's return, there's an error
mov ErrorCode, eax
push MB_OK
push offset capt
push offset txt
push 0
call MessageBoxA
.else
invoke socket,AF_INET,SOCK_STREAM,0 ; Create a stream socket for internet use
invoke WSAGetLastError
.if eax!=INVALID_SOCKET
mov sock,eax
.else
invoke WSAGetLastError
push MB_OK
push offset capt
push offset txt1
push 0
call MessageBoxA
.endif
; ¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;Now we have a socket ready for use, we still have to be able to connect to somewere though...
; ¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
mov sin.sin_family, AF_INET
invoke htons, Port ; convert port number into network byte order first
mov sin.sin_port,ax ; note that this member is a word-size param.
invoke gethostbyname, addr hostname
mov eax,[eax+12] ; move the value of h_list member into eax
mov eax,[eax] ; copy the pointer to the actual IP address into eax
mov eax,[eax]
mov sin.sin_addr,eax ; copy IP address into eax
; ¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;Now That's done we can connect to a site! (an irc channel in this case)
; ¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
invoke connect,socket,addr sin,sizeof sin
.if eax==SOCKET_ERROR
invoke WSAGetLastError
mov ErrorCode, eax
push MB_OK
push offset capt
push offset txt2
push 0
call MessageBoxA
invoke ExitProcess, NULL
.endif
invoke send, socket,addr USER, 100, 0
.if eax==SOCKET_ERROR
push MB_OK
push offset capt
push offset txt2
push 0
call MessageBoxA
invoke ExitProcess, NULL
.else
invoke send, socket,addr NICK, 100, 0
invoke send, socket,addr CHANNEL, 100, 0
.endif
.endif
invoke ExitProcess, NULL
end start 提前感谢
-Rick
回答 1
Stack Overflow用户
回答已采纳
发布于 2010-10-06 01:38:44
在这一部分中：
invoke send, socket,addr USER, 100, 0
.if eax==SOCKET_ERROR
push MB_OK
push offset capt
push offset txt2
push 0
call MessageBoxA
invoke ExitProcess, NULL
.else
invoke send, socket,addr NICK, 100, 0
invoke send, socket,addr CHANNEL, 100, 0如果你有" socket "，你想要有"sock“--原样，我相信它使用的是socket函数的地址(或者可能是第一个字)，而不是你保存在sock中的套接字值。
如果你不介意我这么说，我认为代码有点乱。稍微整理一下，我得到了这个：
.code
show_error proc caption:ptr byte, err_txt:ptr byte
invoke WSAGetLastError
mov ErrorCode, eax
invoke MessageBoxA, MB_OK, caption, err_txt, 0
ret
show_error endp
main proc
invoke WSAStartup, 101h,addr wsadata
.if eax==0 ; An error occured if eax != 0, because there's no return value for this api, if there's return, there's an error
invoke socket,AF_INET,SOCK_STREAM,0 ; Create a stream socket for internet use
.if eax!=INVALID_SOCKET
mov sock,eax
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;Now we have a socket ready for use, we still have to be able to connect to somewere though...
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
mov sin.sin_family, AF_INET
invoke htons, Port ; convert port number into network byte order first
mov sin.sin_port,ax ; note that this member is a word-size param.
invoke gethostbyname, addr hostname
mov eax,[eax+12] ; move the value of h_list member into eax
mov eax,[eax] ; copy the pointer to the actual IP address into eax
mov eax,[eax] ; copy IP address into eax
mov sin.sin_addr,eax
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
;Now That's done we can connect to a site! (an irc channel in this case)
;¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤
invoke connect, sock, addr sin, sizeof sin
.if eax!=SOCKET_ERROR
invoke send, sock, addr USER, 100, 0
.if eax!=SOCKET_ERROR
invoke send, sock, addr NICK, 100, 0
invoke send, sock, addr CHANNEL, 100, 0
.else
invoke show_error, offset capt, offset txt2
.endif
.else
invoke show_error, offset capt, offset txt2
.endif
.else
invoke show_error, offset capt, offset txt1
.endif
.else
invoke show_error, offset capt, offset txt
.endif
invoke ExitProcess, 0
main endp
end main页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/3865201
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