1 files changed, 86 insertions, 0 deletions
diff --git a/tools/pe_bliss/utils.cpp b/tools/pe_bliss/utils.cpp
new file mode 100644
index 0000000000..69f013098f
--- /dev/null
+++ b/tools/pe_bliss/utils.cpp
@@ -0,0 +1,86 @@
+#include <string.h>
+#include "utils.h"
+#include "pe_exception.h"
+
+#ifndef PE_BLISS_WINDOWS
+#include <iconv.h>
+#endif
+
+namespace pe_bliss
+{
+const double pe_utils::log_2 = 1.44269504088896340736; //instead of using M_LOG2E
+
+//Returns stream size
+std::streamoff pe_utils::get_file_size(std::istream& file)
+{
+	//Get old istream offset
+	std::streamoff old_offset = file.tellg();
+	file.seekg(0, std::ios::end);
+	std::streamoff filesize = file.tellg();
+	//Set old istream offset
+	file.seekg(old_offset);
+	return filesize;
+}
+
+#ifndef PE_BLISS_WINDOWS
+const u16string pe_utils::to_ucs2(const std::wstring& str)
+{
+	u16string ret;
+	if(str.empty())
+		return ret;
+
+	ret.resize(str.length());
+
+	iconv_t conv = iconv_open("UCS-2", "WCHAR_T");
+	if(conv == reinterpret_cast<iconv_t>(-1))
+		throw pe_exception("Error opening iconv", pe_exception::encoding_convertion_error);
+
+	size_t inbytesleft = str.length() * sizeof(wchar_t);
+	size_t outbytesleft = ret.length() * sizeof(unicode16_t);
+	const wchar_t* in_pos = str.c_str();
+	unicode16_t* out_pos = &ret[0];
+
+	size_t result = iconv(conv, const_cast<char**>(reinterpret_cast<const char**>(&in_pos)), &inbytesleft, reinterpret_cast<char**>(&out_pos), &outbytesleft);
+	iconv_close(conv);
+	
+	if(result == static_cast<size_t>(-1))
+		throw pe_exception("Iconv error", pe_exception::encoding_convertion_error);
+
+	return ret;
+}
+
+const std::wstring pe_utils::from_ucs2(const u16string& str)
+{
+	std::wstring ret;
+	if(str.empty())
+		return ret;
+
+	ret.resize(str.length());
+
+	iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
+	if(conv == reinterpret_cast<iconv_t>(-1))
+		throw pe_exception("Error opening iconv", pe_exception::encoding_convertion_error);
+
+	size_t inbytesleft = str.length() * sizeof(unicode16_t);
+	size_t outbytesleft = ret.length() * sizeof(wchar_t);
+	const unicode16_t* in_pos = str.c_str();
+	wchar_t* out_pos = &ret[0];
+
+	size_t result = iconv(conv, const_cast<char**>(reinterpret_cast<const char**>(&in_pos)), &inbytesleft, reinterpret_cast<char**>(&out_pos), &outbytesleft);
+	iconv_close(conv);
+
+	if(result == static_cast<size_t>(-1))
+		throw pe_exception("Iconv error", pe_exception::encoding_convertion_error);
+
+	return ret;
+}
+#endif
+
+bool operator==(const pe_win::guid& guid1, const pe_win::guid& guid2)
+{
+	return guid1.Data1 == guid2.Data1
+		&& guid1.Data2 == guid2.Data2
+		&& guid1.Data3 == guid2.Data3
+		&& !memcmp(guid1.Data4, guid2.Data4, sizeof(guid1.Data4));
+}
+}