C++

SCP Download/Upload Binary Files as Encoded Strings

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

#include <CkSsh.h>
#include <CkScp.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkSsh ssh;

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

    // Connect to an SSH server:
    success = ssh.Connect(hostname,port);
    if (success != true) {
        std::cout << ssh.lastErrorText() << "\r\n";
        return;
    }

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

    // Authenticate using login/password:
    success = ssh.AuthenticatePw("myLogin","myPassword");
    if (success != true) {
        std::cout << ssh.lastErrorText() << "\r\n";
        return;
    }

    // Once the SSH object is connected and authenticated, we use it
    // in our SCP object.
    CkScp scp;

    success = scp.UseSsh(ssh);
    if (success != true) {
        std::cout << scp.lastErrorText() << "\r\n";
        return;
    }

    const char *remotePath = "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.
    const char *encodedJpg = scp.downloadBinaryEncoded(remotePath,"base64");
    if (scp.get_LastMethodSuccess() != true) {
        std::cout << scp.lastErrorText() << "\r\n";
        return;
    }

    remotePath = "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 = scp.UploadBinaryEncoded(remotePath,encodedJpg,"base64");
    if (success != true) {
        std::cout << scp.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "SCP download/upload binary encoded success." << "\r\n";

    // Disconnect
    ssh.Disconnect();
    }