Fixes: individual static analysers reset tapes, for potential successors. The ZX81 file analyser no longer overruns its buffer upon receiving a file that is shorter than 11 bytes.

StaticAnalyser/Acorn/StaticAnalyser.cpp

@@ -75,6 +75,7 @@ void StaticAnalyser::Acorn::AddTargets(
 	if(tapes.size() > 0) {
 		std::shared_ptr<Storage::Tape::Tape> tape = tapes.front();
 		std::list<File> files = GetFiles(tape);
+		tape->reset();
 
 		// continue if there are any files
 		if(files.size()) {

StaticAnalyser/Commodore/StaticAnalyser.cpp

@@ -68,6 +68,7 @@ void StaticAnalyser::Commodore::AddTargets(
 	// check tapes
 	for(auto &tape : tapes) {
 		std::list<File> tape_files = GetFiles(tape);
+		tape->reset();
 		if(tape_files.size()) {
 			files.splice(files.end(), tape_files);
 			target.tapes = tapes;

StaticAnalyser/Oric/StaticAnalyser.cpp

@@ -84,8 +84,9 @@ void StaticAnalyser::Oric::AddTargets(
 	int basic10_votes = 0;
 	int basic11_votes = 0;
 
-	for(auto tape : tapes) {
+	for(auto &tape : tapes) {
 		std::list<File> tape_files = GetFiles(tape);
+		tape->reset();
 		if(tape_files.size()) {
 			for(auto file : tape_files) {
 				if(file.data_type == File::MachineCode) {

StaticAnalyser/ZX8081/StaticAnalyser.cpp

@@ -35,6 +35,7 @@ void StaticAnalyser::ZX8081::AddTargets(
 
 	if(!tapes.empty()) {
 		std::vector<Storage::Data::ZX8081::File> files = GetFiles(tapes.front());
+		tapes.front()->reset();
 		if(!files.empty()) {
 			StaticAnalyser::Target target;
 			target.machine = Target::ZX8081;

Storage/Data/ZX8081.cpp

@@ -51,7 +51,7 @@ static std::shared_ptr<File> ZX81FileFromData(const std::vector<uint8_t> &data)
 	// Look for a file name.
 	size_t data_pointer = 0;
 	int c = 11;
-	while(c--) {
+	while(c < data.size() && c--) {
 		if(data[data_pointer] & 0x80) break;
 		data_pointer++;
 	}