Initial commit.

codemp/encryption/buffer.cpp

@@ -0,0 +1,99 @@
+#include "encryption.h"
+
+#ifdef _ENCRYPTION_
+
+#pragma warning (disable : 4514)	//unref inline removed
+#pragma warning (disable : 4711)	//func selected for auto inline
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "buffer.h"
+
+const int	BufferIncrease = 1024;
+
+cBuffer::cBuffer(int InitIncrease)
+:Buffer(NULL),
+ Size(0),
+ Pos(0),
+ ActualSize(0),
+ FreeNextAdd(false)
+{
+	Increase = InitIncrease;
+}
+
+char *cBuffer::Add(char *Data, int Amount)
+{
+	if (FreeNextAdd)
+	{
+		Free();
+		FreeNextAdd = false;
+	}
+
+	if (Pos + Amount >= ActualSize)
+	{
+		ActualSize += Amount;
+
+		ActualSize -= ActualSize % Increase;
+		ActualSize += Increase;
+
+		Buffer = (char *)realloc(Buffer, ActualSize);
+	}
+
+	if (Data)
+	{
+		memcpy(Buffer+Pos, Data, Amount);
+	}
+
+	Pos += Amount;
+	Size += Amount;
+
+	return Buffer + Pos - Amount;
+}
+
+void cBuffer::Read(void)
+{
+	ResetPos();
+}
+
+char *cBuffer::Read(int Amount)
+{
+	Pos += Amount;
+
+	if (Pos < Size)
+	{
+		return Buffer + Pos - Amount;
+	}
+
+	return NULL;
+}
+
+size_t cBuffer::strcspn(const char *notin)
+{
+        const char *s1, *s2;
+
+        for (s1 = Buffer+Pos; *s1; s1++) 
+		{
+                for(s2 = notin; *s2 != *s1 && *s2; s2++)
+				{
+				}
+                if (*s2)
+				{
+                        break;
+				}
+        }
+        return s1 - Buffer + Pos;
+}
+
+void cBuffer::Free(void)
+{
+	if (Buffer)
+	{
+		free(Buffer);
+		Buffer = NULL;
+		Size= 0;
+		Pos = 0;
+		ActualSize = 0;
+	}
+}
+#endif