Correct typo; check CRC.

OSBindings/Mac/Clock Signal/Info.plist

@@ -598,7 +598,7 @@
 		<dict>
 			<key>CFBundleTypeExtensions</key>
 			<array>
-				<string>mood</string>
+				<string>moof</string>
 			</array>
 			<key>CFBundleTypeIconFile</key>
 			<string>floppy35</string>

Storage/Disk/DiskImage/Formats/MOOF.cpp

@@ -8,6 +8,8 @@
 
 #include "MOOF.hpp"
 
+#include "Numeric/CRC.hpp"
+
 using namespace Storage::Disk;
 
 MOOF::MOOF(const std::string &file_name) :
@@ -20,6 +22,14 @@ MOOF::MOOF(const std::string &file_name) :
 	if(!file_.check_signature<SignatureType::Binary>(signature)) {
 		throw Error::InvalidFormat;
 	}
+
+	// Test the file's CRC32.
+	const auto crc = file_.get_le<uint32_t>();
+	post_crc_contents_ = file_.read(size_t(file_.stats().st_size - 12));
+	const uint32_t computed_crc = CRC::CRC32::crc_of(post_crc_contents_);
+	if(crc != computed_crc) {
+		throw Error::InvalidFormat;
+	}
 }
 
 HeadPosition MOOF::maximum_head_position() const {

Storage/Disk/DiskImage/Formats/MOOF.hpp

@@ -23,6 +23,7 @@ public:
 
 private:
 	mutable Storage::FileHolder file_;
+	std::vector<uint8_t> post_crc_contents_;
 };
 
 }