[REFACT] Define bufisize_t as size_t. Check max size before resizing

Author: hasherezade

parser/ByteBuffer.cpp

@@ -1,5 +1,6 @@
 #include "ByteBuffer.h"
 #include <iostream>
+#include <limits.h>
 
 ByteBuffer::ByteBuffer(bufsize_t v_size, bufsize_t v_padding)
     : ByteBuffer()
@@ -49,6 +50,7 @@ ByteBuffer::ByteBuffer(AbstractByteBuffer *v_parent, offset_t v_offset, bufsize_
 BYTE* ByteBuffer::allocContent(bufsize_t v_size, bufsize_t v_padding)
 {
     if (!v_size) throw BufferException("Zero size requested");
+    if (v_size >= BUFSIZE_MAX || v_size >= LLONG_MAX) throw BufferException("Too big size requested");
 
     const bufsize_t allocSize = v_size + v_padding;
     const bufsize_t sizeDiff = (allocSize > this->contentSize) ? (allocSize - this->contentSize) : 0;

parser/include/bearparser/AbstractByteBuffer.h

@@ -14,7 +14,7 @@
 #define MASK_TO_DWORD(val) ((val < MAX_DWORD) ? (val & MAX_DWORD) : MAX_DWORD)
 #define MASK_TO_WORD(val) ((val < MAX_WORD) ? (val & MAX_WORD) : MAX_WORD)
 
-typedef uint32_t bufsize_t;
+typedef size_t bufsize_t;
 const bufsize_t BUFSIZE_MAX = bufsize_t(-1);
 
 typedef uint64_t offset_t;