(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_CkSsh.h>
#include <C_CkScp.h>

void ChilkatSample(void)
    {
    HCkSsh ssh;
    const char *hostname;
    int port;
    BOOL success;
    HCkScp scp;
    const char *remotePath;
    const char *encodedJpg;

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

    ssh = CkSsh_Create();

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

    // Connect to an SSH server:
    success = CkSsh_Connect(ssh,hostname,port);
    if (success != TRUE) {
        printf("%s\n",CkSsh_lastErrorText(ssh));
        CkSsh_Dispose(ssh);
        return;
    }

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

    // Authenticate using login/password:
    success = CkSsh_AuthenticatePw(ssh,"myLogin","myPassword");
    if (success != TRUE) {
        printf("%s\n",CkSsh_lastErrorText(ssh));
        CkSsh_Dispose(ssh);
        return;
    }

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

    success = CkScp_UseSsh(scp,ssh);
    if (success != TRUE) {
        printf("%s\n",CkScp_lastErrorText(scp));
        CkSsh_Dispose(ssh);
        CkScp_Dispose(scp);
        return;
    }

    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.
    encodedJpg = CkScp_downloadBinaryEncoded(scp,remotePath,"base64");
    if (CkScp_getLastMethodSuccess(scp) != TRUE) {
        printf("%s\n",CkScp_lastErrorText(scp));
        CkSsh_Dispose(ssh);
        CkScp_Dispose(scp);
        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 = CkScp_UploadBinaryEncoded(scp,remotePath,encodedJpg,"base64");
    if (success != TRUE) {
        printf("%s\n",CkScp_lastErrorText(scp));
        CkSsh_Dispose(ssh);
        CkScp_Dispose(scp);
        return;
    }

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

    // Disconnect
    CkSsh_Disconnect(ssh);


    CkSsh_Dispose(ssh);
    CkScp_Dispose(scp);

    }