Discussion :

[youp_db]

Bonjour,

j'ai réaliser un client telnet en C en modifiant un code trouvé sur internet et j'ai des problèmes d'affichage :

Code :

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 #include <windows.h>
  #include <winsock2.h>
   #include <stdlib.h>
   #include <stdio.h>
   #include <string.h>
 
   DWORD WINAPI ClientRecv(LPVOID arg) {
     SOCKET Client = *(SOCKET*) arg;
     char c = 0;
     while (recv(Client, &c, 1, 0) > 0) printf("%c", c);
     return 0;
  }
 
   DWORD WINAPI ClientSend(LPVOID arg) {
     SOCKET Client = *(SOCKET*) arg;
     char c = 0;
     do if ((c = (char) getc(stdin)) == '\n') send(Client, "\r", 1, 0);
     while (send(Client, &c, 1, 0) > 0);
    return 0;
   }
 
  int main(int argc, char* argv[]) {
     WSADATA WSAData;
     char* port = "23";
    char* host = "localhost";
    SOCKADDR_IN ClientSock;
     SOCKET Client = INVALID_SOCKET;
    HOSTENT* ServerInfos = NULL;
     HANDLE RecvThread = NULL;
     DWORD RecvThreadID = 0;
     DWORD RecvThreadExitCode = 0;
     HANDLE SendThread = NULL;
     DWORD SendThreadID = 0;
     DWORD SendThreadExitCode = 0;
     if (argc > 1) host = argv[1];
     if (argc > 2) port = argv[2];
   printf("connecting to [%s] on port [%s]... ", host, port);
    if (WSAStartup(MAKEWORD(2, 2), &WSAData)) {
       printf("unable to start winsock\n");
       return EXIT_FAILURE;
     }
     if (!(ServerInfos = gethostbyname(host))) {
       printf("unable to resolve remote host\n");
       return EXIT_FAILURE;
     }
     memset(&ClientSock, 0, sizeof(SOCKADDR_IN));
     memcpy(&ClientSock.sin_addr.s_addr, ServerInfos->h_addr, ServerInfos->h_length);
     ClientSock.sin_port = htons(atoi(port));
     ClientSock.sin_family = AF_INET;
     if (!(Client = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))) {
       printf("unable to create client socket\n");
       return EXIT_FAILURE;
     }
     if (connect(Client, (SOCKADDR*) &ClientSock, sizeof(SOCKADDR_IN))) {
       printf("unable to connect to remote host\n");
       return EXIT_FAILURE;
     }
     if (!(RecvThread = CreateThread(NULL, 0, &ClientRecv, &Client, 0, &RecvThreadID))) {
       printf("unable to create recv thread\n");
       return EXIT_FAILURE;
     }
     if (!(SendThread = CreateThread(NULL, 0, &ClientSend, &Client, 0, &SendThreadID))) {
       printf("unable to create send thread\n");
       return EXIT_FAILURE;
     }
     printf("done\n");
     do {
       Sleep(100);
       GetExitCodeThread(RecvThread, &RecvThreadExitCode);
       GetExitCodeThread(SendThread, &SendThreadExitCode);
     } while (RecvThreadExitCode == STILL_ACTIVE && SendThreadExitCode == STILL_ACTIVE);
     printf("\n\ndisconnected from remote host\n");
     if (RecvThreadExitCode == STILL_ACTIVE) TerminateThread(RecvThread, 0);
     if (SendThreadExitCode == STILL_ACTIVE) TerminateThread(SendThread, 0);
     CloseHandle(RecvThread);
     CloseHandle(SendThread);
     return EXIT_SUCCESS;
   }

pourquoi ya -t -il autant de problème d'affichage ?

Pourtant, l'affichage fonctionne très bien quand on se connecte sur un serveur ftp par exemple ...


comment régler ces problèmes d'affichages svp ? c'est urgent

merci