char * corrupt_zeros(char * data, size_t * dataSz)
{
// Choose between zero corruption methods
// 0. Insert zeros in to the bitstream
// 1. Replace random bytes with zeros
int choice = randomInt(0, 1);
size_t corruptLoc = random_offset(*dataSz);
size_t corruptSize = randomInt(1, 0x100);
// we can't corrupt this crap TODO fix this
if(*dataSz < CORRUPT_START_MIN)
return data;
char * replacement = calloc(corruptSize, sizeof(char));
if(!replacement)
return data;
memset(replacement, 0x0, corruptSize);
if(choice == 0)
{
data = insertBytes(data, dataSz, replacement,
corruptSize, corruptLoc);
}
else if(choice == 1)
{
data = replaceBytes(data, dataSz, replacement,
corruptSize, corruptLoc);
}
return data;
}
bool StringCell::fill(UnicodeChar unicodeChar, SliceIndexType start, SliceIndexType end)
{
assert(unicodeChar.isValid());
CharRange range = charRange(start, end);
if (range.isNull())
{
// Invalid range
return false;
}
// Encode the new character
utf8::EncodedChar encoded(utf8::encodeChar(unicodeChar));
return replaceBytes(range, encoded.data, encoded.size, range.charCount);
}
bool StringCell::replace(CharLengthType offset, const StringCell *from, SliceIndexType fromStart, SliceIndexType fromEnd)
{
CharRange fromRange = const_cast<StringCell*>(from)->charRange(fromStart, fromEnd);
if (fromRange.isNull())
{
return false;
}
CharRange toRange = charRange(offset, offset + fromRange.charCount);
if (toRange.isNull() || (toRange.charCount != fromRange.charCount))
{
return false;
}
return replaceBytes(toRange, fromRange.startPointer, fromRange.byteCount(), 1);
}
