Sample code for 30+ languages & platforms
Unicode C

Append Bytes to a Remote FTP File (BinData)

See more FTP Examples

Demonstrates the Chilkat Ftp2.AppendFileBd method, which appends the bytes in a BinData to a remote file. The first argument is the remote filename and the second is the BinData. No conversion is performed.

Background: The binary append: add in-memory bytes to the end of a remote file without an intermediate local file and without any encoding or line-ending translation. It is the right choice for growing a binary file — concatenating captured data, for instance — where exact bytes matter.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkFtp2W.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkFtp2W ftp;
    HCkBinDataW bd;

    success = FALSE;

    //  Demonstrates the Ftp2.AppendFileBd method, which appends the bytes in a BinData to a remote
    //  file.  The 1st argument is the remote filename and the 2nd is the BinData.

    ftp = CkFtp2W_Create();

    CkFtp2W_putHostname(ftp,L"ftp.example.com");
    CkFtp2W_putUsername(ftp,L"myFtpLogin");

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    CkFtp2W_putPassword(ftp,L"myPassword");

    success = CkFtp2W_Connect(ftp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        return;
    }

    bd = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(bd,L"qa_data/more_data.bin");
    if (success == FALSE) {
        wprintf(L"%s\n",CkBinDataW_lastErrorText(bd));
        CkFtp2W_Dispose(ftp);
        CkBinDataW_Dispose(bd);
        return;
    }

    success = CkFtp2W_AppendFileBd(ftp,L"data/collected.bin",bd);
    if (success == FALSE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        CkBinDataW_Dispose(bd);
        return;
    }

    wprintf(L"Appended %d bytes.\n",CkBinDataW_getNumBytes(bd));

    success = CkFtp2W_Disconnect(ftp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp));
        CkFtp2W_Dispose(ftp);
        CkBinDataW_Dispose(bd);
        return;
    }



    CkFtp2W_Dispose(ftp);
    CkBinDataW_Dispose(bd);

    }