Function GetLanguageFileHeader

src/strings.cpp:2199–2214

* Reads the language file header and checks compatibility. * @param file the file to read * @param hdr the place to write the header information to * @return true if and only if the language file is of a compatible version */

 * @return true if and only if the language file is of a compatible version
 */
static bool GetLanguageFileHeader(const std::string &file, LanguagePackHeader *hdr)
{
	auto f = FileHandle::Open(file, "rb");
	if (!f.has_value()) return false;

	size_t read = fread(hdr, sizeof(*hdr), 1, *f);

	bool ret = read == 1 && hdr->IsValid();

	/* Convert endianness for the windows language ID */
	if (ret) {
		hdr->missing = FROM_LE16(hdr->missing);
		hdr->winlangid = FROM_LE16(hdr->winlangid);
	}
	return ret;
}

/**
 * Search for the languages in the given directory and add them to the #_languages list.