Set a Remote File's POSIX Permissions

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Demonstrates the Chilkat SFtp.SetPermissions method, which sets the POSIX permission bits of a remote item. The arguments are the remote path (or handle), whether the first argument is a handle, and the permission bits. Pass the permission bits only, not the file-type bits.

func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the SFtp.SetPermissions method, which sets the POSIX permission bits of a remote
    //  item.  The 1st argument is the remote path (or handle), the 2nd (isHandle) indicates which,
    //  and the 3rd is the permission bits.

    let sftp = CkoSFtp()!

    //  Connect, authenticate, and initialize the SFTP subsystem.
    var port: Int = 22
    success = sftp.connect(hostname: "sftp.example.com", port: port)
    if success == false {
        print("\(sftp.lastErrorText!)")
        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.
    var password: String? = "mySshPassword"

    success = sftp.authenticatePw(login: "mySshLogin", password: password)
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    success = sftp.initializeSftp()
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    //  The 1st argument is a path, so isHandle is false.
    var isHandle: Bool = false

    //  Pass the permission bits, not the file-type bits.  0755 gives the owner read/write/execute and
    //  read/execute to group and others -- a common mode for an executable script.
    var permissions: Int = 493
    success = sftp.setPermissions(pathOrHandle: "subdir/script.sh", bIsHandle: isHandle, perm: permissions)
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    print("Permissions set.")

    sftp.disconnect()

}