Add bootloader extension

device/extensions/bootloader/version.cpp

@@ -0,0 +1,50 @@
+#include "icsneo/device/extensions/bootloader/version.h"
+#include "icsneo/device/extensions/bootloader/platform/logging.h"
+
+#include <limits>
+#include <optional>
+#include <regex>
+
+namespace icsneo {
+
+namespace Bootloader {
+
+bool FirmwareSourceVersion::load(const std::string& toParse) {
+	static const std::regex VersionRegex{"(\\d+)\\.(\\d+)\\.(\\d+)\\.(\\d+)"};
+	std::smatch match;
+	if(!std::regex_match(toParse, match, VersionRegex)) {
+		Log::Error(__func__, "Failed to parse version");
+		return false;
+	}
+
+	const auto parse = [](const std::string& input) -> std::optional<ValueType> {
+		// The regex guarantees only digits, limit the length so stoul can not overflow
+		if(input.size() > 3) {
+			return std::nullopt;
+		}
+		const auto value = std::stoul(input);
+		if(value > std::numeric_limits<ValueType>::max()) {
+			return std::nullopt;
+		}
+		return static_cast<ValueType>(value);
+	};
+
+	const auto parsedMajor = parse(match[1]);
+	const auto parsedMinor = parse(match[2]);
+	const auto parsedRelease = parse(match[3]);
+	const auto parsedBuild = parse(match[4]);
+	if(!parsedMajor || !parsedMinor || !parsedRelease || !parsedBuild) {
+		Log::Error(__func__, "Invalid sized version number");
+		return false;
+	}
+
+	major = *parsedMajor;
+	minor = *parsedMinor;
+	release = *parsedRelease;
+	build = *parsedBuild;
+	return true;
+}
+
+} // namespace Bootloader
+
+} // namespace icsneo