public void Read(BinaryReader reader, MDStream stream)
{
offs = reader.ReadUInt32 ();
size = reader.ReadUInt32 ();
StringBuilder name_builder = new StringBuilder ();
while (true) {
sbyte c = reader.ReadSByte();
if (c == 0)
break;
name_builder.Append ((char) c);
}
name = name_builder.ToString ();
if (name.Length == 0)
throw new BadImageException("Invalid stream name.");
// Round up to dword boundary.
long pos = reader.BaseStream.Position;
if (stream != null)
pos -= stream.Root.filePos;
pos += 3;
pos &= ~3;
if (stream != null)
pos += stream.Root.filePos;
// Advance file pointer.
reader.BaseStream.Position = pos;
}
protected MDHeap(MDStream stream)
{
this.stream = stream;
if (stream.RawData != null) {
FromRawData(stream.RawData);
}
}
public void Write(BinaryWriter writer, MDStream stream)
{
writer.Write(offs);
writer.Write(size);
for (int i = 0; i < name.Length; i++)
{
writer.Write((sbyte)name[i]);
}
writer.Write((sbyte)'\0');
// Round up to dword boundary.
long pos = writer.BaseStream.Position;
if (stream != null)
{
pos -= stream.Root.filePos;
}
pos += 3;
pos &= ~3;
if (stream != null)
{
pos += stream.Root.filePos;
}
// Advance file pointer.
writer.BaseStream.Position = pos;
}
public MethodIL GetMethodBody(int num)
{
MethodIL il = null;
if (img == null)
{
return(il);
}
MDStream tabs = Streams["#~"] as MDStream;
TablesHeap tabsHeap = tabs.Heap as TablesHeap;
if (tabsHeap.HasMethod)
{
MDTable methods = tabsHeap[TableId.Method];
if (methods == null)
{
return(il);
}
MethodRow row = methods[num] as MethodRow;
if (row == null)
{
return(il);
}
BinaryReader reader = img.reader;
reader.BaseStream.Position = img.RVAToVA(row.RVA);
il = new MethodIL();
il.Read(reader);
}
return(il);
}
protected MDHeap(MDStream stream)
{
this.stream = stream;
if (stream.RawData != null)
{
FromRawData(stream.RawData);
}
}
/// <summary>
/// Heap factory.
/// </summary>
/// <param name="stream">Base stream.</param>
/// <returns></returns>
public static MDHeap Create(MDStream stream)
{
MDHeap res = null;
switch (stream.Name) {
case "#~" :
case "#-" :
res = new TablesHeap(stream);
break;
case "#Strings" :
res = new StringsHeap(stream);
break;
case "#GUID" :
res = new GUIDHeap(stream);
break;
}
return res;
}
public void Write (BinaryWriter writer, MDStream stream)
{
writer.Write (offs);
writer.Write (size);
for (int i=0; i<name.Length; i++)
writer.Write ((sbyte)name[i]);
writer.Write ((sbyte) '\0');
// Round up to dword boundary.
long pos = writer.BaseStream.Position;
if (stream != null)
pos -= stream.Root.filePos;
pos += 3;
pos &= ~3;
if (stream != null)
pos += stream.Root.filePos;
// Advance file pointer.
writer.BaseStream.Position = pos;
}
public void Read(BinaryReader reader, MDStream stream)
{
offs = reader.ReadUInt32();
size = reader.ReadUInt32();
StringBuilder name_builder = new StringBuilder();
while (true)
{
sbyte c = reader.ReadSByte();
if (c == 0)
{
break;
}
name_builder.Append((char)c);
}
name = name_builder.ToString();
if (name.Length == 0)
{
throw new BadImageException("Invalid stream name.");
}
// Round up to dword boundary.
long pos = reader.BaseStream.Position;
if (stream != null)
{
pos -= stream.Root.filePos;
}
pos += 3;
pos &= ~3;
if (stream != null)
{
pos += stream.Root.filePos;
}
// Advance file pointer.
reader.BaseStream.Position = pos;
}
/// <summary>
/// Heap factory.
/// </summary>
/// <param name="stream">Base stream.</param>
/// <returns></returns>
public static MDHeap Create(MDStream stream)
{
MDHeap res = null;
switch (stream.Name)
{
case "#~":
case "#-":
res = new TablesHeap(stream);
break;
case "#Strings":
res = new StringsHeap(stream);
break;
case "#GUID":
res = new GUIDHeap(stream);
break;
}
return(res);
}
internal TablesHeap(MDStream stream) : base(stream)
{
}
internal StringsHeap(MDStream stream) : base(stream)
{
}
internal TablesHeapBase(MDStream stream) : base(stream)
{
}
internal GUIDHeap(MDStream stream) : base(stream)
{
}
unsafe public void Read(BinaryReader reader)
{
filePos = reader.BaseStream.Position;
sig = reader.ReadUInt32();
if (sig != Sig)
{
throw new BadImageException("Invalid MetaData Signature.");
}
majVer = reader.ReadInt16();
minVer = reader.ReadInt16();
reserved = reader.ReadUInt32();
// Length of version string.
len = reader.ReadInt32();
// Read version string.
if (len != 0)
{
sbyte *pVer = stackalloc sbyte [len];
sbyte *p = pVer;
long pos = reader.BaseStream.Position;
int i;
for (i = len; --i >= 0;)
{
sbyte c = reader.ReadSByte();
if (c == 0)
{
break;
}
*p++ = c;
}
verStr = PEUtils.GetString(pVer, 0, len - i - 1, Encoding.UTF8);
// Round up to dword boundary, relative to header start.
pos += len;
pos -= filePos;
pos += 3;
pos &= ~3;
pos += filePos;
// Advance file pointer.
reader.BaseStream.Position = pos;
}
else
{
VersionString = String.Empty;
}
flags = reader.ReadInt16();
nStreams = reader.ReadInt16();
streams = new Hashtable(nStreams);
// load all streams into memory
for (int i = nStreams; --i >= 0;)
{
MDStream s = new MDStream(this);
s.Read(reader);
// TODO: check for duplicated streams,
// use Add instead of indexer.
streams[s.Name] = s;
}
MDStream tabs = Streams["#~"] as MDStream;
// Try uncompressed stream.
if (tabs == null)
{
tabs = Streams["#-"] as MDStream;
}
if (tabs == null)
{
throw new BadMetaDataException("Missing #~ stream.");
}
TablesHeap tabsHeap = tabs.Heap as TablesHeap;
// cache index sizes
strIdx = tabsHeap.StringsIndexSize;
guidIdx = tabsHeap.GUIDIndexSize;
blobIdx = tabsHeap.BlobIndexSize;
}
internal GUIDHeap(MDStream stream) : base(stream)
{
}
internal StringsHeap(MDStream stream) : base(stream)
{
}
unsafe public void Read(BinaryReader reader)
{
filePos = reader.BaseStream.Position;
sig = reader.ReadUInt32();
if (sig != Sig) {
throw new BadImageException("Invalid MetaData Signature.");
}
majVer = reader.ReadInt16();
minVer = reader.ReadInt16();
reserved = reader.ReadUInt32();
// Length of version string.
len = reader.ReadInt32();
// Read version string.
if (len != 0) {
sbyte* pVer = stackalloc sbyte [len];
sbyte* p = pVer;
long pos = reader.BaseStream.Position;
int i;
for (i = len; --i >= 0;) {
sbyte c = reader.ReadSByte();
if (c == 0) break;
*p++ = c;
}
verStr = PEUtils.GetString (pVer, 0, len-i-1, Encoding.UTF8);
// Round up to dword boundary, relative to header start.
pos += len;
pos -= filePos;
pos += 3;
pos &= ~3;
pos += filePos;
// Advance file pointer.
reader.BaseStream.Position = pos;
} else {
VersionString = String.Empty;
}
flags = reader.ReadInt16();
nStreams = reader.ReadInt16();
streams = new Hashtable(nStreams);
// load all streams into memory
for (int i = nStreams; --i >=0;) {
MDStream s = new MDStream(this);
s.Read(reader);
// TODO: check for duplicated streams,
// use Add instead of indexer.
streams[s.Name] = s;
}
MDStream tabs = Streams["#~"] as MDStream;
// Try uncompressed stream.
if (tabs == null) tabs = Streams["#-"] as MDStream;
if (tabs == null) throw new BadMetaDataException("Missing #~ stream.");
TablesHeap tabsHeap = tabs.Heap as TablesHeap;
// cache index sizes
strIdx = tabsHeap.StringsIndexSize;
guidIdx = tabsHeap.GUIDIndexSize;
blobIdx = tabsHeap.BlobIndexSize;
}