pipe cmd.exe (solved)

[Foxy999]

I am having trouble getting thise code to work:

#include <windows.h>
#include <stdio.h>

#define MAX_BUFFER_SIZE 512

int EmulateCommandPrompt(LPSTR cmdline)
{
	STARTUPINFO sti = { 0 };
	SECURITY_ATTRIBUTES sats = { 0 };
	PROCESS_INFORMATION pi = { 0 };
	HANDLE pipin_w, pipin_r, pipout_w, pipout_r;
	BYTE buffer[MAX_BUFFER_SIZE];
	DWORD writ, excode, read, available;
	int ret = 0;
	
	pipin_w = pipin_r = pipout_w = pipout_r = NULL;
	
	for(;;)
	{
		//set SECURITY_ATTRIBUTES struct fields
		sats.nLength = sizeof(sats);
		sats.bInheritHandle = TRUE;
		sats.lpSecurityDescriptor = NULL;
		
		//create child's stdout pipes
		if(!CreatePipe(&pipout_r, &pipout_w, &sats, 0)) break;
		//and its stdin pipes
		if(!CreatePipe(&pipin_r, &pipin_w, &sats, 0)) break;
		printf("Created pipes\n");
		
		//now set STARTUPINFO struct fields (from the child's point of view)
		sti.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
		sti.wShowWindow = SW_HIDE;
		sti.hStdInput = pipin_r;
		sti.hStdOutput = pipout_w;
		sti.hStdError = pipout_w;
		
		//create the process...
		if(!CreateProcess(NULL, "cmd.exe", NULL, NULL, TRUE, 
			0, NULL, NULL, &sti, pi)) break;
		printf("Created process (%s)\n", cmdline);
		
		//now have a continuous loop to get and recieve info
		for(;;)
		{
			//make sure process is still running
			GetExitCodeProcess(pi.hProcess, &excode);
			if(excode != STILL_ACTIVE) break;
			//printf("Process still running\n");
			
			//give it time to set up/react
			Sleep(500);
			
			//now check to see if process has anything to say
			if(!PeekNamedPipe(pipout_r, buffer, 
				sizeof(buffer), &read, &available, NULL)) ret = 10;
			//printf("Peeked\n");
			
			//is there anything to be read in the pipe?
			if(read)
			{
				do
				{
					ZeroMemory(buffer, sizeof(buffer));
					//read it and print to stdout
					if(!ReadFile(pipout_r, buffer, sizeof(buffer), &read, NULL) || !read) ret = 7;
					buffer[read] = 0;
					fprintf(stdout, "%s", buffer);
					if(ret) break;
				}
				while(read >= sizeof(buffer));
			}
			
			//make sure we didn't run into any errors
			if(!ret)
			{
				//get info and write it to pipe
				ZeroMemory(buffer, sizeof(buffer));
				fgets(buffer, sizeof(buffer), stdin);
				if(!strnicmp(buffer, "exit", 4)) ret = 12;
				if(!WriteFile(pipin_w, buffer, strlen(buffer), &writ, NULL)) ret = 8;
			}
			if(ret) break;
		}
		
		break;
	}
	
	//clean up any unfinished business
	if(pipin_w != NULL) CloseHandle(pipin_w);
	if(pipin_r != NULL) CloseHandle(pipin_r);
	if(pipout_w != NULL) CloseHandle(pipout_w);
	if(pipout_r != NULL) CloseHandle(pipout_r);
	if(pi.hProcess != NULL) CloseHandle(pi.hProcess);
	if(pi.hThread != NULL) CloseHandle(pi.hThread);
	
	return ret;
}

int main(int argc, char *argv[])
{
	EmulateCommandPrompt(NULL);
	
	return 0;
}

I found this on another forum. The problem is that CreateProcess 10th argument only accepts LPPROCESS_INFORMATION, where this program uses PROCESS_INFORMATION. I can change it but it won't compile because of pi not having pi.hPorcess and pi.hThread.

I am new to windows programming and am not sure what to do. I was using this code as an example for my own program, to use cmd over a connection.

Foxyy

[Foxy999]

I added this code to my program and modified it so it would compile but it doesn't work, it just makes my wine crash. I don't think it's not working because of wine.

Foxyy

EDIT: nvm I got it to work