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+/* 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.*/
+
+#ifndef LIBPIT_H
+#define LIBPIT_H
+
+// C Standard Library
+#include <string.h>
+#include <vector>
+
+namespace libpit
+{
+ class PitEntry
+ {
+ public:
+
+ enum
+ {
+ kDataSize = 132,
+ kPartitionNameMaxLength = 32,
+ kFilenameMaxLength = 64
+ };
+
+ enum
+ {
+ kPartitionTypeRfs = 0,
+ kPartitionTypeBlank = 1, // ?
+ kPartitionTypeExt4 = 2
+ };
+
+ enum
+ {
+ kPartitionFlagWrite = 1 << 1
+ };
+
+ private:
+
+ bool unused;
+
+ unsigned int partitionType;
+ unsigned int partitionIdentifier;
+ unsigned int partitionFlags;
+
+ unsigned int unknown1;
+
+ unsigned int partitionBlockSize;
+ unsigned int partitionBlockCount;
+
+ unsigned int unknown2;
+ unsigned int unknown3;
+
+ char partitionName[kPartitionNameMaxLength];
+ char filename[kFilenameMaxLength];
+
+ public:
+
+ PitEntry();
+ ~PitEntry();
+
+ bool GetUnused(void) const
+ {
+ return unused;
+ }
+
+ void SetUnused(bool unused)
+ {
+ this->unused = unused;
+ }
+
+ unsigned int GetPartitionType(void) const
+ {
+ return partitionType;
+ }
+
+ void SetPartitionType(unsigned int partitionType)
+ {
+ this->partitionType = partitionType;
+ }
+
+ unsigned int GetPartitionIdentifier(void) const
+ {
+ return partitionIdentifier;
+ }
+
+ void SetPartitionIdentifier(unsigned int partitionIdentifier)
+ {
+ this->partitionIdentifier = partitionIdentifier;
+ }
+
+ unsigned int GetPartitionFlags(void) const
+ {
+ return partitionFlags;
+ }
+
+ void SetPartitionFlags(unsigned int partitionFlags)
+ {
+ this->partitionFlags = partitionFlags;
+ }
+
+ unsigned int GetUnknown1(void) const
+ {
+ return unknown1;
+ }
+
+ void SetUnknown1(unsigned int unknown1)
+ {
+ this->unknown1 = unknown1;
+ }
+
+ unsigned int GetPartitionBlockSize(void) const
+ {
+ return partitionBlockSize;
+ }
+
+ void SetPartitionBlockSize(unsigned int partitionBlockSize)
+ {
+ this->partitionBlockSize = partitionBlockSize;
+ }
+
+ unsigned int GetPartitionBlockCount(void) const
+ {
+ return partitionBlockCount;
+ }
+
+ void SetPartitionBlockCount(unsigned int partitionBlockCount)
+ {
+ this->partitionBlockCount = partitionBlockCount;
+ }
+
+ unsigned int GetUnknown2(void) const
+ {
+ return unknown2;
+ }
+
+ void SetUnknown2(unsigned int unknown2)
+ {
+ this->unknown2 = unknown2;
+ }
+
+ unsigned int GetUnknown3(void) const
+ {
+ return unknown3;
+ }
+
+ void SetUnknown3(unsigned int unknown3)
+ {
+ this->unknown3 = unknown3;
+ }
+
+ const char *GetPartitionName(void) const
+ {
+ return partitionName;
+ }
+
+ void SetPartitionName(const char *partitionName)
+ {
+ // This isn't strictly necessary but ensures no junk is left in our PIT file.
+ memset(this->partitionName, 0, 64);
+
+ if (strlen(partitionName) < 64)
+ strcpy(this->partitionName, partitionName);
+ else
+ memcpy(this->partitionName, partitionName, 63);
+ }
+
+ const char *GetFilename(void) const
+ {
+ return filename;
+ }
+
+ void SetFilename(const char *filename)
+ {
+ // This isn't strictly necessary but ensures no junk is left in our PIT file.
+ memset(this->filename, 0, 32);
+
+ if (strlen(partitionName) < 32)
+ strcpy(this->filename, filename);
+ else
+ memcpy(this->filename, filename, 31);
+ }
+ };
+
+ class PitData
+ {
+ public:
+
+ enum
+ {
+ kFileIdentifier = 0x12349876,
+ kHeaderDataSize = 28
+ };
+
+ private:
+
+ unsigned int entryCount; // 0x04
+ unsigned int unknown1; // 0x08
+ unsigned int unknown2; // 0x0C
+
+ unsigned short unknown3; // 0x10 (7508 = I9000, 7703 = I9100 & P1000)?
+ unsigned short unknown4; // 0x12 (Always 65, probably flags of some sort)
+
+ unsigned short unknown5; // 0x14
+ unsigned short unknown6; // 0x16
+
+ unsigned short unknown7; // 0x18
+ unsigned short unknown8; // 0x1A
+
+ // Entries start at 0x1C
+ std::vector<PitEntry *> entries;
+
+ static int UnpackInteger(const unsigned char *data, unsigned int offset)
+ {
+#ifdef WORDS_BIGENDIAN
+ int value = (data[offset] << 24) | (data[offset + 1] << 16) |
+ (data[offset + 2] << 8) | data[offset + 3];
+#else
+ // Flip endianness
+ int value = data[offset] | (data[offset + 1] << 8) |
+ (data[offset + 2] << 16) | (data[offset + 3] << 24);
+#endif
+ return (value);
+ }
+
+ static int UnpackShort(const unsigned char *data, unsigned int offset)
+ {
+#ifdef WORDS_BIGENDIAN
+ short value = (data[offset] << 8) | data[offset + 1];
+#else
+ // Flip endianness
+ short value = data[offset] | (data[offset + 1] << 8);
+#endif
+ return (value);
+ }
+
+ static void PackInteger(unsigned char *data, unsigned int offset, unsigned int value)
+ {
+#ifdef WORDS_BIGENDIAN
+ data[offset] = (value & 0xFF000000) >> 24;
+ data[offset + 1] = (value & 0x00FF0000) >> 16;
+ data[offset + 2] = (value & 0x0000FF00) >> 8;
+ data[offset + 3] = value & 0x000000FF;
+#else
+ // Flip endianness
+ data[offset] = value & 0x000000FF;
+ data[offset + 1] = (value & 0x0000FF00) >> 8;
+ data[offset + 2] = (value & 0x00FF0000) >> 16;
+ data[offset + 3] = (value & 0xFF000000) >> 24;
+#endif
+ }
+
+ static void PackShort(unsigned char *data, unsigned int offset, unsigned short value)
+ {
+#ifdef WORDS_BIGENDIAN
+ data[offset] = (value & 0xFF00) >> 8;
+ data[offset + 1] = value & 0x00FF;
+#else
+ // Flip endianness
+ data[offset] = value & 0x00FF;
+ data[offset + 1] = (value & 0xFF00) >> 8;
+#endif
+ }
+
+ public:
+
+ PitData();
+ ~PitData();
+
+ bool Unpack(const unsigned char *data);
+ void Pack(unsigned char *data) const;
+
+ void Clear(void);
+
+ PitEntry *GetEntry(unsigned int index);
+ const PitEntry *GetEntry(unsigned int index) const;
+
+ PitEntry *FindEntry(const char *partitionName);
+ const PitEntry *FindEntry(const char *partitionName) const;
+
+ PitEntry *FindEntry(unsigned int partitionIdentifier);
+ const PitEntry *FindEntry(unsigned int partitionIdentifier) const;
+
+ unsigned int GetEntryCount(void) const
+ {
+ return entryCount;
+ }
+
+ unsigned int GetUnknown1(void) const
+ {
+ return unknown1;
+ }
+
+ unsigned int GetUnknown2(void) const
+ {
+ return unknown2;
+ }
+
+ unsigned short GetUnknown3(void) const
+ {
+ return unknown3;
+ }
+
+ unsigned short GetUnknown4(void) const
+ {
+ return unknown4;
+ }
+
+ unsigned short GetUnknown5(void) const
+ {
+ return unknown5;
+ }
+
+ unsigned short GetUnknown6(void) const
+ {
+ return unknown6;
+ }
+
+ unsigned short GetUnknown7(void) const
+ {
+ return unknown7;
+ }
+
+ unsigned short GetUnknown8(void) const
+ {
+ return unknown8;
+ }
+ };
+}
+
+#endif
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