PassiveUseHostAddr

Some FTP servers need this option for passive data transfers. In passive mode, the data connection is initiated by the client sending a PASV command to the FTP server, and the FTP server responds with the IP address and port number where it is listening for the client's connection request. When the PassiveUseHostAddr property is set, the IP address in the PASV response is discarded and the IP address of the remote endpoint of the existing control connection is used instead.

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#include <CkFtp2.h>

void ChilkatSample(void)
    {
    CkFtp2 ftp;

    bool success;

    //  Any string unlocks the component for the 1st 30-days.
    success = ftp.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("%s\n",ftp.lastErrorText());
        return;
    }

    ftp.put_Hostname("ftp.chilkatsoft.com");
    ftp.put_Username("*myLogin");
    ftp.put_Password("*myPassword");

    //  Connect and login to the FTP server.
    success = ftp.Connect();
    if (success != true) {
        printf("%s\n",ftp.lastErrorText());
        return;
    }

    //  Set the PassiveUseHostAddr property.
    ftp.put_PassiveUseHostAddr(true);

    //  Change to the remote directory where the file will be uploaded.
    success = ftp.ChangeRemoteDir("junk");
    if (success != true) {
        printf("%s\n",ftp.lastErrorText());
        return;
    }

    //  Upload a file.
    const char * localFilename;
    localFilename = "hamlet.xml";
    const char * remoteFilename;
    remoteFilename = "hamlet.xml";

    success = ftp.PutFile(localFilename,remoteFilename);
    if (success != true) {
        printf("%s\n",ftp.lastErrorText());
        return;
    }

    ftp.Disconnect();

    printf("File Uploaded!\n");
    }