Add nitrokey as a dependency to nitrocli

The nitrokey crate provides a simple interface to the Nitrokey Storage
and the Nitrokey Pro based on the libnitrokey library developed by
Nitrokey UG.  The low-level bindings to this library are available in
the nitrokey-sys crate.

This patch adds version v0.2.1 of the nitrokey crate as a dependency
for nitrocli.  It includes the indirect dependencies nitrokey-sys
(version 3.4.1) and rand (version 0.4.3).

Import subrepo nitrokey/:nitrokey at 2eccc96ceec2282b868891befe9cda7f941fbe7b
Import subrepo nitrokey-sys/:nitrokey-sys at f1a11ebf72610fb9cf80ac7f9f147b4ba1a5336f
Import subrepo rand/:rand at d7d5da49daf7ceb3e5940072940d495cced3a1b3

1 files changed, 118 insertions, 0 deletions

diff --git a/nitrokey-sys/libnitrokey-v3.4.1/libnitrokey/LibraryException.h b/nitrokey-sys/libnitrokey-v3.4.1/libnitrokey/LibraryException.h
new file mode 100644
index 0000000..3b9d177
--- /dev/null
+++ b/nitrokey-sys/libnitrokey-v3.4.1/libnitrokey/LibraryException.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2015-2018 Nitrokey UG
+ *
+ * This file is part of libnitrokey.
+ *
+ * libnitrokey is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * libnitrokey is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libnitrokey. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: LGPL-3.0
+ */
+
+#ifndef LIBNITROKEY_LIBRARYEXCEPTION_H
+#define LIBNITROKEY_LIBRARYEXCEPTION_H
+
+#include <exception>
+#include <cstdint>
+#include <string>
+#include "log.h"
+
+class LibraryException: std::exception {
+public:
+    virtual uint8_t exception_id()= 0;
+};
+
+class TargetBufferSmallerThanSource: public LibraryException {
+public:
+    virtual uint8_t exception_id() override {
+        return 203;
+    }
+
+public:
+    size_t source_size;
+    size_t target_size;
+
+    TargetBufferSmallerThanSource(
+            size_t source_size, size_t target_size
+            ) : source_size(source_size),  target_size(target_size) {}
+
+    virtual const char *what() const throw() override {
+        std::string s = " ";
+        auto ts = [](size_t x){ return std::to_string(x); };
+        std::string msg = std::string("Target buffer size is smaller than source: [source size, buffer size]")
+            +s+ ts(source_size) +s+ ts(target_size);
+        return msg.c_str();
+    }
+
+};
+
+class InvalidHexString : public LibraryException {
+public:
+    virtual uint8_t exception_id() override {
+        return 202;
+    }
+
+public:
+    uint8_t invalid_char;
+
+    InvalidHexString (uint8_t invalid_char) : invalid_char( invalid_char) {}
+
+    virtual const char *what() const throw() override {
+        return "Invalid character in hex string";
+    }
+
+};
+
+class InvalidSlotException : public LibraryException {
+public:
+    virtual uint8_t exception_id() override {
+        return 201;
+    }
+
+public:
+    uint8_t slot_selected;
+
+    InvalidSlotException(uint8_t slot_selected) : slot_selected(slot_selected) {}
+
+    virtual const char *what() const throw() override {
+        return "Wrong slot selected";
+    }
+
+};
+
+
+
+class TooLongStringException : public LibraryException {
+public:
+    virtual uint8_t exception_id() override {
+        return 200;
+    }
+
+    std::size_t size_source;
+    std::size_t size_destination;
+    std::string message;
+
+    TooLongStringException(size_t size_source, size_t size_destination, const std::string &message = "") : size_source(
+            size_source), size_destination(size_destination), message(message) {
+      LOG(std::string("TooLongStringException, size diff: ")+ std::to_string(size_source-size_destination), nitrokey::log::Loglevel::DEBUG);
+
+    }
+
+    virtual const char *what() const throw() override {
+        //TODO add sizes and message data to final message
+        return "Too long string has been supplied as an argument";
+    }
+
+};
+
+#endif //LIBNITROKEY_LIBRARYEXCEPTION_H