int
main(void)
{
    int serveur;
    int lg_rx, lg_out, lg_tx;
    socklen_t paq_lg;
    struct sockaddr_in client;

    char    buffer_in[MAX_BUFFER + 1],
    buffer_out[MAX_BUFFER + 1];
    serveur = setup_udp_serveur(ADR_LISTEN, PORT_NET);

    if (serveur != -1)
    {
        buffer_out[0] = 'A';
        if ((lg_tx = sendto(serveur, buffer_out, lg_out, 0, (struct sockaddr *)&client, paq_lg)) < 0)
        {
            perror("ERREUR sendto");
            exit(EXIT_FAILURE);
        }
        printf("Connecter");
        paq_lg = sizeof(struct sockaddr_in);
        bzero(buffer_in, MAX_BUFFER);

        if ((lg_rx = recvfrom(serveur, buffer_in, MAX_BUFFER, 0, (struct sockaddr *)&client, &paq_lg)) < 0)
        {
            perror("ERREUR recvfrom");
            exit(EXIT_FAILURE);
        }
        else
        {
            printf("\n--------------------------------------------------------------------------\n\n");

            FILE *fichier;
            if ((fichier = fopen("prog", "w")) == NULL)
            {
                printf("--------------------- Probleme de fichier\n");
            }
            else
            {
                fprintf(fichier,"%1c",lg_rx);
            }


            buffer_in[lg_rx] = 0;
            printf("Le serveur a recu %i bytes ==>>%s<<==\n\n", lg_rx, buffer_in);

            bzero(buffer_out, MAX_BUFFER);
            snprintf(buffer_out, MAX_BUFFER, ")%s(", buffer_in);
            lg_out = strlen(buffer_out);

            printf("Le serveur va transmettre %i bytes ==>>%s<<==\n\n", lg_out, buffer_out);

            printf("\n--------------------------------------------------------------------------\n\n");
        }
    }
}


///////////////////SERVER

int
main(void)
{
    int serveur;
    int lg_rx, lg_out, lg_tx;
    socklen_t paq_lg;
    struct sockaddr_in client;
    int size = 0;

    char    buffer_in[MAX_BUFFER + 1],
        buffer_out[MAX_BUFFER + 1];

    //-------------------------

    serveur = setup_udp_serveur(ADR_LISTEN, PORT_NET);

    if (serveur != -1)
    {
        if ((lg_rx = recvfrom(serveur, buffer_in, MAX_BUFFER, 0, (struct sockaddr *)&client, &paq_lg)) < 0)
        {
            perror("ERREUR recvfrom");
            exit(EXIT_FAILURE);
        }
        printf("Connecter");
        paq_lg = sizeof(struct sockaddr_in);
        bzero(buffer_in, MAX_BUFFER);
        printf("\n--------------------------------------------------------------------------\n\n");

        prt_sockaddr_in(client);
        FILE *fichier;

        if ((fichier = fopen("prog", "r")) == NULL)
        {
            printf("--------------------- Probleme de fichier\n");
        }
        else
        {
            fseek(fichier, 0, SEEK_END);
            size = ftell(fichier);
            printf("size: %X\n", size);
            fseek(fichier, 0, SEEK_SET);

            //scanf("%[^\n]s", buffer);

            while(size!=0)
            {
                if (size >= 100)
                {
                    for (int i = 0; i < 100; i++)
                    {
                        buffer_in[i] = fscanf(fichier, "%c");
                    }
                    fscanf(fichier, "%[^\n]s", buffer_in);
                    size - 100;
                }
                else
                {
                    for(int i=0;i<size;i++)
                    {
                        buffer_in[i] = fscanf(fichier, "%c");
                    }
                    for (int i = (100-size); i < 100; i++)
                    {
                        buffer_in[i] = 0;
                    }
                    size = 0;
                }

                if ((lg_tx = sendto(serveur, buffer_out, lg_out, 0, (struct sockaddr *)&client, paq_lg)) < 0)
                {
                    perror("ERREUR sendto");
                    exit(EXIT_FAILURE);
                }
                else
                {
                    printf("Transmission de %i byte terminee\n\n\n", lg_out);
                }
            }


            printf("\n--------------------------------------------------------------------------\n\n");
            printf("\n----------------------------potato234000000000000000000000----------------\n\n");
            /*

            bzero(buffer_out, MAX_BUFFER);
            snprintf(buffer_out, MAX_BUFFER, ")%s(", buffer_in);
            lg_out = strlen(buffer_out);

            printf("Le serveur va transmettre %i bytes ==>>%s<<==\n\n", lg_out, buffer_out);

            //--------------------------------------------- Transmet un paquet
            printf("TO: ");
            prt_sockaddr_in(client);
            printf("\n\n");

            if ((lg_tx = sendto(serveur, buffer_out, lg_out, 0, (struct sockaddr *)&client, paq_lg)) < 0)
            {
                perror("ERREUR sendto");
                exit(EXIT_FAILURE);
            }
            else
            {
                printf("Transmission de %i byte terminee\n\n\n", lg_out);
            }

            */
        }
    }
}