102 lines
3.6 KiB
C#
102 lines
3.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using BasicDataTypes;
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// A Sfo Parser Written by SilicaAndPina
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// Because all the others are overly-complicated for no reason!
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// MIT Licensed.
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namespace ParamSfo
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{
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class Sfo
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{
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const int PSF_TYPE_BIN = 0;
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const int PSF_TYPE_STR = 2;
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const int PSF_TYPE_VAL = 4;
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public static void WriteSfoString(Stream Sfo, string Option, String NewValue)
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{
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ReadSfo(Sfo, Option, NewValue);
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}
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public static Dictionary<String, Object> ReadSfo(Stream Sfo,string replaceOption="", string replaceValue="")
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{
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Dictionary<String, Object> SfoValues = new Dictionary<String, Object>();
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// Read Sfo Header
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UInt32 Magic = DataUtils.ReadUInt32(Sfo);
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UInt32 Version = DataUtils.ReadUInt32(Sfo);
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UInt32 KeyOffset = DataUtils.ReadUInt32(Sfo);
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UInt32 ValueOffset = DataUtils.ReadUInt32(Sfo);
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UInt32 Count = DataUtils.ReadUInt32(Sfo);
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if (Magic == 0x46535000) //\x00PSF
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{
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for(int i = 0; i < Count; i++)
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{
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UInt16 NameOffset = DataUtils.ReadUInt16(Sfo);
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Byte Alignment = (Byte)Sfo.ReadByte();
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Byte Type = (Byte)Sfo.ReadByte();
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UInt32 ValueSize = DataUtils.ReadUInt32(Sfo);
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UInt32 TotalSize = DataUtils.ReadUInt32(Sfo);
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UInt32 DataOffset = DataUtils.ReadUInt32(Sfo);
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int KeyLocation = Convert.ToInt32(KeyOffset + NameOffset);
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string KeyName = DataUtils.ReadStringAt(Sfo, KeyLocation);
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int ValueLocation = Convert.ToInt32(ValueOffset + DataOffset);
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object Value = "Unknown Type";
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if(KeyName == replaceOption)
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{
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// int padLen = Convert.ToInt32(TotalSize - replaceValue.Length);
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DataUtils.WriteStringAt(Sfo, replaceValue, ValueLocation);
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/*int newSz = replaceValue.Length + 1;
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if(newSz > TotalSize)
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{
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throw new Exception("New Value is larger than Total Size.");
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}
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Sfo.Seek(-8, SeekOrigin.Current);
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DataUtils.WriteInt32(Sfo, newSz);
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byte[] zeros = new byte[padLen];
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Sfo.Write(zeros, 0x00, zeros.Length);
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*/
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return SfoValues;
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}
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switch (Type)
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{
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case PSF_TYPE_STR:
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Value = DataUtils.ReadStringAt(Sfo, ValueLocation);
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break;
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case PSF_TYPE_VAL:
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Value = DataUtils.ReadUint32At(Sfo, ValueLocation + i);
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break;
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case PSF_TYPE_BIN:
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Value = DataUtils.ReadBytesAt(Sfo,ValueLocation + i, Convert.ToInt32(ValueSize));
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break;
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}
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SfoValues[KeyName] = Value;
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}
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}
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else
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{
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throw new InvalidDataException("Sfo Magic is Invalid.");
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}
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return SfoValues;
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}
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public static Dictionary<String,Object> ReadSfo(byte[] Sfo)
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{
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MemoryStream SfoStream = new MemoryStream(Sfo);
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return ReadSfo(SfoStream);
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}
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}
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}
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