(Unicode C) FTP Non-Recursive Sync Directory (Download)

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Download files from the server that have filenames matchhing a pattern, and don't yet exist in a local directory.

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#include <C_CkFtp2W.h>
#include <C_CkStringBuilderW.h>
#include <C_CkStringTableW.h>

void ChilkatSample(void)
    {
    HCkFtp2W ftp;
    BOOL success;
    int mode;
    HCkStringBuilderW sb;
    HCkStringTableW st;
    int numFiles;
    int i;
    const wchar_t *remoteFilename;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    ftp = CkFtp2W_Create();

    CkFtp2W_putHostname(ftp,L"ftp.example.com");
    CkFtp2W_putUsername(ftp,L"myUsername");
    CkFtp2W_putPassword(ftp,L"myPassword");
    CkFtp2W_putPort(ftp,21);
    CkFtp2W_putAuthTls(ftp,TRUE);

    // Connect and login to the FTP server.
    success = CkFtp2W_Connect(ftp);
    if (success != TRUE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    // Change to the remote directory where the files are located.
    // This step is only necessary if the files are not in the root directory
    // of the FTP account.
    success = CkFtp2W_ChangeRemoteDir(ftp,L"qa");
    if (success != TRUE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    // Indicate that we only want to download files with filenames ending in ".txt"
    CkFtp2W_putSyncMustMatch(ftp,L"*.txt");

    // Modes for synchronization are as follows:
    // mode=0: Download all files
    // mode=1: Download all files that do not exist on the local filesystem.
    // mode=2: Download newer or non-existant files.
    // mode=3: Download only newer files. If a file does not already exist on the local filesystem, it is not downloaded from the server.
    // mode=5: Download only missing files or files with size differences.
    // mode=6: Same as mode 5, but also download newer files.
    // mode=99: Do not download files, but instead delete remote files that do not exist locally.
    mode = 1;

    // Download all files matching "*.txt" from the current remote ftp directory.
    // The files are downloaded into c:/temp/qa_output
    success = CkFtp2W_SyncLocalDir(ftp,L"c:/temp/qa_output",mode);
    if (success != TRUE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    // We can see what files were downloaded in the SyncedFiles property,
    // which lists the files one per line.
    wprintf(L"%s\n",CkFtp2W_syncedFiles(ftp));

    // Perhaps we wish to delete the files we just downloaded from the server..
    sb = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sb,CkFtp2W_syncedFiles(ftp));

    st = CkStringTableW_Create();
    CkStringTableW_AppendFromSb(st,sb);

    numFiles = CkStringTableW_getCount(st);
    i = 0;

    while (i < numFiles) {
        remoteFilename = CkStringTableW_stringAt(st,i);
        wprintf(L"Deleting %s from the FTP server\n",remoteFilename);
        success = CkFtp2W_DeleteRemoteFile(ftp,remoteFilename);
        if (success != TRUE) {
            wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
            CkFtp2W_Dispose(ftp);
            CkStringBuilderW_Dispose(sb);
            CkStringTableW_Dispose(st);
            return;
        }

        i = i + 1;
    }

    success = CkFtp2W_Disconnect(ftp);


    CkFtp2W_Dispose(ftp);
    CkStringBuilderW_Dispose(sb);
    CkStringTableW_Dispose(st);

    }