1 files changed, 85 insertions, 8 deletions

diff --git a/src/StringUtils.cpp b/src/StringUtils.cpp
index f7aeeed26..0b38297ef 100644
--- a/src/StringUtils.cpp
+++ b/src/StringUtils.cpp
@@ -47,15 +47,13 @@ AString & AppendVPrintf(AString & str, const char *format, va_list args)
 	#endif  // _MSC_VER
 	
 	// Allocate a buffer and printf into it:
-	str.resize(len + 1);
-	// HACK: we're accessing AString's internal buffer in a way that is NOT guaranteed to always work. But it works on all STL implementations tested.
-	// I can't think of any other way that is safe, doesn't allocate twice as much space as needed and doesn't use C++11 features like the move constructor
+	std::vector<char> Buffer(len + 1);
 	#ifdef _MSC_VER
-	vsprintf_s((char *)str.data(), len + 1, format, args);
+	vsprintf_s((char *)&(Buffer.front()), Buffer.size(), format, args);
 	#else  // _MSC_VER
-	vsnprintf((char *)str.data(), len + 1, format, args);
+	vsnprintf((char *)&(Buffer.front()), Buffer.size(), format, args);
 	#endif  // else _MSC_VER
-	str.resize(len);
+	str.append(&(Buffer.front()), Buffer.size() - 1);
 	return str;
 }
 
@@ -612,7 +610,7 @@ AString StripColorCodes(const AString & a_Message)
 {
 	AString res(a_Message);
 	size_t idx = 0;
-	while (true)
+	for (;;)
 	{
 		idx = res.find("\xc2\xa7", idx);
 		if (idx == AString::npos)
@@ -759,7 +757,86 @@ AString Base64Decode(const AString & a_Base64String)
 		}
 	}
 	res.resize(o >> 3);
-	return res;}
+	return res;
+}
+
+
+
+
+
+AString Base64Encode(const AString & a_Input)
+{
+	static const char BASE64[64] = {
+		'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
+		'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
+		'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
+		'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'
+	};
+
+	AString output;
+	output.resize(((a_Input.size() + 2) / 3) * 4);
+
+	size_t output_index = 0;
+	size_t size_full24 = (a_Input.size() / 3) * 3;
+
+	for (size_t i = 0; i < size_full24; i += 3)
+	{
+		output[output_index++] = BASE64[(unsigned char)a_Input[i] >> 2];
+		output[output_index++] = BASE64[((unsigned char)a_Input[i] << 4 | (unsigned char)a_Input[i + 1] >> 4) & 63];
+		output[output_index++] = BASE64[((unsigned char)a_Input[i + 1] << 2 | (unsigned char)a_Input[i + 2] >> 6) & 63];
+		output[output_index++] = BASE64[(unsigned char)a_Input[i + 2] & 63];
+	}
+
+	if (size_full24 < a_Input.size())
+	{
+		output[output_index++] = BASE64[(unsigned char)a_Input[size_full24] >> 2];
+		if (size_full24 + 1 == a_Input.size())
+		{
+			output[output_index++] = BASE64[((unsigned char)a_Input[size_full24] << 4) & 63];
+			output[output_index++] = '=';
+		}
+		else
+		{
+			output[output_index++] = BASE64[((unsigned char)a_Input[size_full24] << 4 | (unsigned char)a_Input[size_full24 + 1] >> 4) & 63];
+			output[output_index++] = BASE64[((unsigned char)a_Input[size_full24 + 1] << 2) & 63];
+		}
+
+		output[output_index++] = '=';
+	}
+	ASSERT(output_index == output.size());
+
+	return output;
+}
+
+
+
+
+
+short GetBEShort(const char * a_Mem)
+{
+	return (((short)a_Mem[0]) << 8) | a_Mem[1];
+}
+
+
+
+
+
+int GetBEInt(const char * a_Mem)
+{
+	return (((int)a_Mem[0]) << 24) | (((int)a_Mem[1]) << 16) | (((int)a_Mem[2]) << 8) | a_Mem[3];
+}
+
+
+
+
+
+void SetBEInt(char * a_Mem, Int32 a_Value)
+{
+	a_Mem[0] = a_Value >> 24;
+	a_Mem[1] = (a_Value >> 16) & 0xff;
+	a_Mem[2] = (a_Value >> 8) & 0xff;
+	a_Mem[3] = a_Value & 0xff;
+}