(Unicode C) SCP Download/Upload Binary Files as Encoded Strings

Demonstrates how to upload and download binary files as encoded strings (base64, hex, etc.) using the SCP protocol (Secure Copy Protocol over SSH).

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#include <C_CkSshW.h>
#include <C_CkScpW.h>

void ChilkatSample(void)
    {
    HCkSshW ssh;
    const wchar_t *hostname;
    int port;
    BOOL success;
    HCkScpW scp;
    const wchar_t *remotePath;
    const wchar_t *encodedJpg;

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

    ssh = CkSshW_Create();

    // Hostname may be an IP address or hostname:
    hostname = L"www.some-ssh-server.com";
    port = 22;

    // Connect to an SSH server:
    success = CkSshW_Connect(ssh,hostname,port);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSshW_lastErrorText(ssh));
        CkSshW_Dispose(ssh);
        return;
    }

    // Wait a max of 5 seconds when reading responses..
    CkSshW_putIdleTimeoutMs(ssh,5000);

    // Authenticate using login/password:
    success = CkSshW_AuthenticatePw(ssh,L"myLogin",L"myPassword");
    if (success != TRUE) {
        wprintf(L"%s\n",CkSshW_lastErrorText(ssh));
        CkSshW_Dispose(ssh);
        return;
    }

    // Once the SSH object is connected and authenticated, we use it
    // in our SCP object.
    scp = CkScpW_Create();

    success = CkScpW_UseSsh(scp,ssh);
    if (success != TRUE) {
        wprintf(L"%s\n",CkScpW_lastErrorText(scp));
        CkSshW_Dispose(ssh);
        CkScpW_Dispose(scp);
        return;
    }

    remotePath = L"images/starfish.jpg";

    // Download the binary file and return as a base64 string.
    // See <a href="http://www.cknotes.com/chilkat-binary-encoding-list/">List of Encodings</a> for a list of possible encodings.
    encodedJpg = CkScpW_downloadBinaryEncoded(scp,remotePath,L"base64");
    if (CkScpW_getLastMethodSuccess(scp) != TRUE) {
        wprintf(L"%s\n",CkScpW_lastErrorText(scp));
        CkSshW_Dispose(ssh);
        CkScpW_Dispose(scp);
        return;
    }

    remotePath = L"images/starfish2.jpg";

    // Now upload from the base64 string to the SSH server.
    // Insided the call to UploadBinaryEncoded, the base64 string is decoded,
    // and the decoded bytes are uploaded.  The resulting starfish2.jpg on the
    // server will be identical to the original starfish.jpg
    success = CkScpW_UploadBinaryEncoded(scp,remotePath,encodedJpg,L"base64");
    if (success != TRUE) {
        wprintf(L"%s\n",CkScpW_lastErrorText(scp));
        CkSshW_Dispose(ssh);
        CkScpW_Dispose(scp);
        return;
    }

    wprintf(L"SCP download/upload binary encoded success.\n");

    // Disconnect
    CkSshW_Disconnect(ssh);


    CkSshW_Dispose(ssh);
    CkScpW_Dispose(scp);

    }