1 files changed, 256 insertions, 0 deletions

diff --git a/libpit/Source/libpit.cpp b/libpit/Source/libpit.cpp
new file mode 100755
index 0000000..030a80b
--- /dev/null
+++ b/libpit/Source/libpit.cpp
@@ -0,0 +1,256 @@
+/* Copyright (c) 2010 Benjamin Dobell, Glass Echidna
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.*/
+
+// libpit
+#include "libpit.h"
+
+using namespace libpit;
+
+PitEntry::PitEntry()
+{
+	unused = false;
+	partitionType = 0;
+	partitionIdentifier = 0;
+	partitionFlags = 0;
+	unknown1 = 0;
+	partitionBlockSize = 0;
+	partitionBlockCount = 0;
+	unknown2 = 0;
+	unknown3 = 0;
+
+	memset(partitionName, 0, 32);
+	memset(filename, 0, 64);
+}
+
+PitEntry::~PitEntry()
+{
+}
+
+
+
+PitData::PitData()
+{
+	entryCount = 0;
+
+	unknown1 = 0;
+	unknown2 = 0;
+
+	unknown3 = 0;
+	unknown4 = 0;
+
+	unknown5 = 0;
+	unknown6 = 0;
+
+	unknown7 = 0;
+	unknown8 = 0;
+}
+
+PitData::~PitData()
+{
+	for (unsigned int i = 0; i < entries.size(); i++)
+		delete entries[i];
+}
+
+bool PitData::Unpack(const unsigned char *data)
+{
+	if (PitData::UnpackInteger(data, 0) != PitData::kFileIdentifier)
+		return (false);
+
+	// Remove existing entries
+	for (unsigned int i = 0; i < entries.size(); i++)
+		delete entries[i];
+
+	entryCount = PitData::UnpackInteger(data, 4);
+
+	entries.resize(entryCount);
+
+	unknown1 = PitData::UnpackInteger(data, 8);
+	unknown2 = PitData::UnpackInteger(data, 12);
+
+	unknown3 = PitData::UnpackShort(data, 16);
+	unknown4 = PitData::UnpackShort(data, 18);
+
+	unknown5 = PitData::UnpackShort(data, 20);
+	unknown6 = PitData::UnpackShort(data, 22);
+
+	unknown7 = PitData::UnpackShort(data, 24);
+	unknown8 = PitData::UnpackShort(data, 26);
+
+	unsigned int integerValue;
+	unsigned int entryOffset;
+
+	for (unsigned int i = 0; i < entryCount; i++)
+	{
+		entryOffset = PitData::kHeaderDataSize + i * PitEntry::kDataSize;
+
+		entries[i] = new PitEntry();
+
+		integerValue = PitData::UnpackInteger(data, entryOffset);
+		entries[i]->SetUnused((integerValue != 0) ? true : false);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 4);
+		entries[i]->SetPartitionType(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 8);
+		entries[i]->SetPartitionIdentifier(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 12);
+		entries[i]->SetPartitionFlags(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 16);
+		entries[i]->SetUnknown1(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 20);
+		entries[i]->SetPartitionBlockSize(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 24);
+		entries[i]->SetPartitionBlockCount(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 28);
+		entries[i]->SetUnknown2(integerValue);
+
+		integerValue = PitData::UnpackInteger(data, entryOffset + 32);
+		entries[i]->SetUnknown3(integerValue);
+
+		entries[i]->SetPartitionName((const char *)data + entryOffset + 36);
+		entries[i]->SetFilename((const char *)data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength);
+	}
+
+	return (true);
+}
+
+void PitData::Pack(unsigned char *data) const
+{
+	PitData::PackInteger(data, 0, PitData::kFileIdentifier);
+
+	PitData::PackInteger(data, 4, entryCount);
+
+	PitData::PackInteger(data, 8, unknown1);
+	PitData::PackInteger(data, 12, unknown2);
+
+	PitData::PackShort(data, 16, unknown3);
+	PitData::PackShort(data, 18, unknown4);
+
+	PitData::PackShort(data, 20, unknown5);
+	PitData::PackShort(data, 22, unknown6);
+
+	PitData::PackShort(data, 24, unknown7);
+	PitData::PackShort(data, 26, unknown8);
+
+	int entryOffset;
+
+	for (unsigned int i = 0; i < entryCount; i++)
+	{
+		entryOffset = PitData::kHeaderDataSize + i * PitEntry::kDataSize;
+
+		PitData::PackInteger(data, entryOffset, (entries[i]->GetUnused()) ? 1 : 0);
+
+		PitData::PackInteger(data, entryOffset + 4, entries[i]->GetPartitionType());
+		PitData::PackInteger(data, entryOffset + 8, entries[i]->GetPartitionIdentifier());
+		PitData::PackInteger(data, entryOffset + 12, entries[i]->GetPartitionFlags());
+
+		PitData::PackInteger(data, entryOffset + 16, entries[i]->GetUnknown1());
+
+		PitData::PackInteger(data, entryOffset + 20, entries[i]->GetPartitionBlockSize());
+		PitData::PackInteger(data, entryOffset + 24, entries[i]->GetPartitionBlockCount());
+
+		PitData::PackInteger(data, entryOffset + 28, entries[i]->GetUnknown2());
+		PitData::PackInteger(data, entryOffset + 32, entries[i]->GetUnknown3());
+
+		memcpy(data + entryOffset + 36, entries[i]->GetPartitionName(), PitEntry::kPartitionNameMaxLength);
+		memcpy(data + entryOffset + 36 + PitEntry::kPartitionNameMaxLength, entries[i]->GetPartitionName(), PitEntry::kFilenameMaxLength);
+	}
+}
+
+void PitData::Clear(void)
+{
+	entryCount = 0;
+
+	unknown1 = 0;
+	unknown2 = 0;
+
+	unknown3 = 0;
+	unknown4 = 0;
+
+	unknown5 = 0;
+	unknown6 = 0;
+
+	unknown7 = 0;
+	unknown8 = 0;
+
+	for (unsigned int i = 0; i < entries.size(); i++)
+		delete entries[i];
+
+	entries.clear();
+}
+
+PitEntry *PitData::GetEntry(unsigned int index)
+{
+	return (entries[index]);
+}
+
+const PitEntry *PitData::GetEntry(unsigned int index) const
+{
+	return (entries[index]);
+}
+
+PitEntry *PitData::FindEntry(const char *partitionName)
+{
+	for (unsigned int i = 0; i < entries.size(); i++)
+	{
+		if (!entries[i]->GetUnused() && strcmp(entries[i]->GetPartitionName(), partitionName) == 0)
+			return (entries[i]);
+	}
+
+	return (nullptr);
+}
+
+const PitEntry *PitData::FindEntry(const char *partitionName) const
+{
+	for (unsigned int i = 0; i < entries.size(); i++)
+	{
+		if (!entries[i]->GetUnused() && strcmp(entries[i]->GetPartitionName(), partitionName) == 0)
+			return (entries[i]);
+	}
+
+	return (nullptr);
+}
+
+PitEntry *PitData::FindEntry(unsigned int partitionIdentifier)
+{
+	for (unsigned int i = 0; i < entries.size(); i++)
+	{
+		if (!entries[i]->GetUnused() && entries[i]->GetPartitionIdentifier() == partitionIdentifier)
+			return (entries[i]);
+	}
+
+	return (nullptr);
+}
+
+const PitEntry *PitData::FindEntry(unsigned int partitionIdentifier) const
+{
+	for (unsigned int i = 0; i < entries.size(); i++)
+	{
+		if (!entries[i]->GetUnused() && entries[i]->GetPartitionIdentifier() == partitionIdentifier)
+			return (entries[i]);
+	}
+
+	return (nullptr);
+}