C++

SFTP Authenticate with a Password

Demonstrates the Chilkat SFtp.AuthenticatePw method, which authenticates the connected session with a login name and password. The first argument is the login and the second is the password. Call Connect first and InitializeSftp afterward.

Background: Password authentication is the simplest SFTP method, but the password is a secret and should never be a hard-coded literal — obtain it from an interactive prompt, an environment variable, or a secrets vault. Public-key authentication is generally preferred for automated jobs. Note the fixed ordering: authentication happens between Connect and InitializeSftp.

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C++

#include <CkSFtp.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the SFtp.AuthenticatePw method, which authenticates the connected session with a
    //  login name and password.  The 1st argument is the login and the 2nd is the password.

    CkSFtp sftp;

    //  Step 1: Connect the SSH transport.  Port 22 is the usual port.
    int port = 22;
    success = sftp.Connect("sftp.example.com",port);
    if (success == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

    //  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.
    const char *password = "mySshPassword";

    success = sftp.AuthenticatePw("mySshLogin",password);
    if (success == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

    //  Step 3: Open the SFTP subsystem.  This must be done after authentication and before any
    //  file or directory operations.
    success = sftp.InitializeSftp();
    if (success == false) {
        std::cout << sftp.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Authenticated with a password." << "\r\n";

    sftp.Disconnect();
    }