change pe_bliss parent directory from /drivers to /tools

tools/pe_bliss/resource_string_table_reader.cpp

@@ -0,0 +1,88 @@
+#include "resource_string_table_reader.h"
+#include "pe_resource_viewer.h"
+
+namespace pe_bliss
+{
+resource_string_table_reader::resource_string_table_reader(const pe_resource_viewer& res)
+	:res_(res)
+{}
+
+//Returns string table data by ID and index in language directory (instead of language)
+const resource_string_list resource_string_table_reader::get_string_table_by_id(uint32_t id, uint32_t index) const
+{
+	return parse_string_list(id, res_.get_resource_data_by_id(pe_resource_viewer::resource_string, id, index).get_data());
+}
+
+//Returns string table data by ID and language
+const resource_string_list resource_string_table_reader::get_string_table_by_id_lang(uint32_t language, uint32_t id) const
+{
+	return parse_string_list(id, res_.get_resource_data_by_id(language, pe_resource_viewer::resource_string, id).get_data());
+}
+
+//Helper function of parsing string list table
+const resource_string_list resource_string_table_reader::parse_string_list(uint32_t id, const std::string& resource_data)
+{
+	resource_string_list ret;
+
+	//16 is maximum count of strings in a string table
+	static const unsigned long max_string_list_entries = 16;
+	unsigned long passed_bytes = 0;
+	for(unsigned long i = 0; i != max_string_list_entries; ++i)
+	{
+		//Check resource data length
+		if(resource_data.length() < sizeof(uint16_t) + passed_bytes)
+			throw pe_exception("Incorrect resource string table", pe_exception::resource_incorrect_string_table);
+
+		//Get string length - the first WORD
+		uint16_t string_length = *reinterpret_cast<const uint16_t*>(resource_data.data() + passed_bytes);
+		passed_bytes += sizeof(uint16_t); //WORD containing string length
+
+		//Check resource data length again
+		if(resource_data.length() < string_length + passed_bytes)
+			throw pe_exception("Incorrect resource string table", pe_exception::resource_incorrect_string_table);
+
+		if(string_length)
+		{
+			//Create and save string (UNICODE)
+#ifdef PE_BLISS_WINDOWS
+			ret.insert(
+				std::make_pair(static_cast<uint16_t>(((id - 1) << 4) + i), //ID of string is calculated such way
+				std::wstring(reinterpret_cast<const wchar_t*>(resource_data.data() + passed_bytes), string_length)));
+#else
+			ret.insert(
+				std::make_pair(static_cast<uint16_t>(((id - 1) << 4) + i), //ID of string is calculated such way
+				pe_utils::from_ucs2(u16string(reinterpret_cast<const unicode16_t*>(resource_data.data() + passed_bytes), string_length))));
+#endif
+		}
+
+		//Go to next string
+		passed_bytes += string_length * 2;
+	}
+
+	return ret;
+}
+
+//Returns string from string table by ID and language
+const std::wstring resource_string_table_reader::get_string_by_id_lang(uint32_t language, uint16_t id) const
+{
+	//List strings by string table id and language
+	const resource_string_list strings(get_string_table_by_id_lang(language, (id >> 4) + 1));
+	resource_string_list::const_iterator it = strings.find(id); //Find string by id
+	if(it == strings.end())
+		throw pe_exception("Resource string not found", pe_exception::resource_string_not_found);
+
+	return (*it).second;
+}
+
+//Returns string from string table by ID and index in language directory (instead of language)
+const std::wstring resource_string_table_reader::get_string_by_id(uint16_t id, uint32_t index) const
+{
+	//List strings by string table id and index
+	const resource_string_list strings(get_string_table_by_id((id >> 4) + 1, index));
+	resource_string_list::const_iterator it = strings.find(id); //Find string by id
+	if(it == strings.end())
+		throw pe_exception("Resource string not found", pe_exception::resource_string_not_found);
+
+	return (*it).second;
+}
+}