(Unicode C) SFTP Public-Key Authentication

Demonstrates how to authenticate with an SSH/SFTP server using publickey authentication.

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#include <C_CkSFtpW.h>
#include <C_CkSshKeyW.h>

void ChilkatSample(void)
    {
    HCkSFtpW sftp;
    const wchar_t *hostname;
    int port;
    BOOL success;
    HCkSshKeyW key;
    const wchar_t *privKey;

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

    sftp = CkSFtpW_Create();

    // Set some timeouts, in milliseconds:
    CkSFtpW_putConnectTimeoutMs(sftp,5000);
    CkSFtpW_putIdleTimeoutMs(sftp,15000);

    // Connect to the SSH server.  
    // The standard SSH port = 22
    // The hostname may be a hostname or IP address.
    hostname = L"sftp.example.com";
    port = 22;
    success = CkSFtpW_Connect(sftp,hostname,port);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    key = CkSshKeyW_Create();

    // Load a PEM file into a string variable:
    // (This does not load the PEM file into the key.  The LoadText
    // method is a convenience method for loading the full contents of ANY text
    // file into a string variable.)
    privKey = CkSshKeyW_loadText(key,L"myPrivateKey.pem");
    if (CkSshKeyW_getLastMethodSuccess(key) != TRUE) {
        wprintf(L"%s\n",CkSshKeyW_lastErrorText(key));
        CkSFtpW_Dispose(sftp);
        CkSshKeyW_Dispose(key);
        return;
    }

    // Load a private key from a PEM string:
    // (Private keys may be loaded from OpenSSH and Putty formats.
    // Both encrypted and unencrypted private key file formats
    // are supported.  This example loads an unencrypted private
    // key in OpenSSH format.
    success = CkSshKeyW_FromOpenSshPrivateKey(key,privKey);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSshKeyW_lastErrorText(key));
        CkSFtpW_Dispose(sftp);
        CkSshKeyW_Dispose(key);
        return;
    }

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  
    success = CkSFtpW_AuthenticatePk(sftp,L"myLogin",key);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        CkSshKeyW_Dispose(key);
        return;
    }

    wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
    wprintf(L"Public-Key Authentication Successful!\n");


    CkSFtpW_Dispose(sftp);
    CkSshKeyW_Dispose(key);

    }