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 C Downloads

Download Chilkat for C

#include <C_CkFtp2.h>
#include <C_CkBinData.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkFtp2 ftp;
    HCkBinData 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 = CkFtp2_Create();

    CkFtp2_putHostname(ftp,"ftp.example.com");
    CkFtp2_putUsername(ftp,"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.
    CkFtp2_putPassword(ftp,"myPassword");

    success = CkFtp2_Connect(ftp);
    if (success == FALSE) {
        printf("%s\n",CkFtp2_lastErrorText(ftp));
        CkFtp2_Dispose(ftp);
        return;
    }

    bd = CkBinData_Create();
    success = CkBinData_LoadFile(bd,"qa_data/more_data.bin");
    if (success == FALSE) {
        printf("%s\n",CkBinData_lastErrorText(bd));
        CkFtp2_Dispose(ftp);
        CkBinData_Dispose(bd);
        return;
    }

    success = CkFtp2_AppendFileBd(ftp,"data/collected.bin",bd);
    if (success == FALSE) {
        printf("%s\n",CkFtp2_lastErrorText(ftp));
        CkFtp2_Dispose(ftp);
        CkBinData_Dispose(bd);
        return;
    }

    printf("Appended %d bytes.\n",CkBinData_getNumBytes(bd));

    success = CkFtp2_Disconnect(ftp);
    if (success == FALSE) {
        printf("%s\n",CkFtp2_lastErrorText(ftp));
        CkFtp2_Dispose(ftp);
        CkBinData_Dispose(bd);
        return;
    }



    CkFtp2_Dispose(ftp);
    CkBinData_Dispose(bd);

    }