proxy-ftp/dep/client.c

#include "client.h"


int CONNECT_CLIENT(char* serverHost, char* serverPort, int* pSocket){
    if( DEBUGMOD&HDR ) printf("====== CONNECT_CLIENT(%s, %s, %d) ======\n\n", serverHost, serverPort, *pSocket);

    struct addrinfo  hints;           // contiendra le filtre/format
    struct addrinfo* addrinfo;        // contiendra les infos
    int    CONNECT;                   // file_desc(s)
    char   BUFFER[maxBuffLen];        // BUFFER de communication

    /* [1] On définit le filtre/format
    =======================================================*/
    memset(&hints, 0, sizeof(struct addrinfo)); // on vide le filtre
    hints.ai_family   = AF_UNSPEC;   // Allow IPv4 ou IPv6
    hints.ai_socktype = SOCK_STREAM; // TCP (SOCK_DGRAM = UDP)
    hints.ai_flags    = 0;           // non spécifié
    hints.ai_protocol = 0;           // non spécifié

    if( DEBUGMOD&SCK ) printf("============HINTS===========\n");
    if( DEBUGMOD&SCK ) printf( "AI_FLAGS    = %d\n", hints.ai_flags    ); // int
    if( DEBUGMOD&SCK ) printf( "AI_FAMILY   = %d\n", hints.ai_family   ); // int
    if( DEBUGMOD&SCK ) printf( "AI_SOCKTYPE = %d\n", hints.ai_socktype ); // int
    if( DEBUGMOD&SCK ) printf( "AI_PROTOCOL = %d\n", hints.ai_protocol ); // int
    if( DEBUGMOD&SCK ) printf( "AI_ADDRLEN  = %d\n", hints.ai_addrlen  ); // int
    if( DEBUGMOD&SCK ) printf("\n");


    /* [2] On récupère les infos
    =======================================================*/
    getaddrinfo(serverHost, serverPort, &hints, &addrinfo);

    if( DEBUGMOD&SCK ) printf("=============RES============\n");
    if( DEBUGMOD&SCK ) printf( "AI_FLAGS    = %d\n", addrinfo->ai_flags    ); // int
    if( DEBUGMOD&SCK ) printf( "AI_FAMILY   = %d\n", addrinfo->ai_family   ); // int
    if( DEBUGMOD&SCK ) printf( "AI_SOCKTYPE = %d\n", addrinfo->ai_socktype ); // int
    if( DEBUGMOD&SCK ) printf( "AI_PROTOCOL = %d\n", addrinfo->ai_protocol ); // int
    if( DEBUGMOD&SCK ) printf( "AI_ADDRLEN  = %d\n", addrinfo->ai_addrlen  ); // int
    if( DEBUGMOD&SCK ) printf("\n");

    /* [3] Création de la socket
    =======================================================*/
    *pSocket = socket(addrinfo->ai_family, addrinfo->ai_socktype, 0);

    if( DEBUGMOD&SCK ) printf("SOCKET = %d\n", *pSocket);

    // si erreur
    if( *pSocket == -1 ) return -1;

    /* [4] On établit la connection
    =======================================================*/
    CONNECT = connect(
        *pSocket,
        addrinfo->ai_addr,
        addrinfo->ai_addrlen
    );

    if( DEBUGMOD&SCK ) printf("CONNECT = %d\n", CONNECT);

    // si erreur
    if( CONNECT == -1 ) return -1;

    // on a plus besoin des infos de l'adresse
    freeaddrinfo(addrinfo);

    return *pSocket;
}






int CLIENT_SEND(int* pSocket, char* pRequest, char** pAnswer){
    if( DEBUGMOD&HDR ) printf("====== CLIENT_SEND(%d, %s, %s) ======\n\n", *pSocket, pRequest, *pAnswer);
    char BUFFER[maxBuffLen] = {0};

    /* [1] On écrit sur la socket
    =======================================================*/
    int nbSend = swrite(pSocket, pRequest);

    if( DEBUGMOD&BUF ) printf("nbSend:     %d\n", nbSend);
    if( DEBUGMOD&BUF ) printf("Message:    %s\n", pRequest);

    // si pas tout envoyé
    if( strlen(pRequest) != nbSend ) return -1;

    /* [2] On attends et lit la réponse
    =======================================================*/
    int nbRecup = WAIT_SOCKET_UPDATE(pSocket, BUFFER);

    /* [3] On retourne la réponse par référence
    =======================================================*/
    *pAnswer = malloc( maxBuffLen );
    strcpy(*pAnswer, BUFFER);

    if( DEBUGMOD&BUF ) printf("nbReceived: %d\n", nbRecup);
    if( DEBUGMOD&BUF ) printf("Message:    %s\n", *pAnswer);
}