Restart/Resume FTP Upload

Demonstrates how to restart / resume an FTP upload.

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#include <CkFtp2.h>
#include <CkString.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("****");
    ftp.put_Password("****");

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

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

    //  In this example, assume that a previous FTP upload failed,
    //  and the incomplete file (bigFile.zip) exists on the FTP server.
    //  You only need to set the RestartNext property to resume
    //  the upload.  When RestartNext is set, the next call
    //  to PutFile (or PutFileFromBinaryData, PutFileFromTextData)
    //  will automatically resume the upload from the point of failure.
    //  (The way it works is that the FTP component sends a "SIZE"
    //  command to the FTP server to find out how many bytes of
    //  the file already exist on the server.  It then begins
    //  uploading from that point.

    //  Note: After PutFile is called, the RestartNext property
    //  is automatically set to false.
    ftp.put_RestartNext(true);

    //  Upload a file with restart.
    CkString localFilename;
    localFilename = "bigFile.zip";
    CkString remoteFilename;
    remoteFilename = "bigFile.zip";

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

    ftp.Disconnect();

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