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Added NE resident and non-resident names.

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This commit is contained in:
Natalia Portillo
2018-02-26 08:06:46 +00:00
parent 654b07fe05
commit 3ecb5a4c8f
4 changed files with 90 additions and 4 deletions
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14
exeinfo/Program.cs
View File

@@ -109,6 +109,20 @@ namespace exeinfo
Console.WriteLine("\t\t\t{0}: {1}", strings.Key, strings.Value);
}
}
if(((NE)neExe).ResidentNames != null)
{
Console.WriteLine("\tResident names:");
foreach(NE.ResidentName name in ((NE)neExe).ResidentNames)
Console.WriteLine("\t\t{0} at index {1}", name.name, name.entryTableIndex);
}
if(((NE)neExe).NonResidentNames != null)
{
Console.WriteLine("\tNon-resident names:");
foreach(NE.ResidentName name in ((NE)neExe).NonResidentNames)
Console.WriteLine("\t\t{0} at index {1}", name.name, name.entryTableIndex);
}
}
else if(lxExe.Recognized)
{

34
libexeinfo/NE/Info.cs
View File

@@ -213,6 +213,40 @@ namespace libexeinfo
return sb.ToString();
}
static ResidentName[] GetResidentStrings(Stream stream, uint neStart, ushort tableOff, ushort upperLimit)
{
if(tableOff >= upperLimit) return null;
List<ResidentName> names = new List<ResidentName>();
byte stringSize;
byte[] nameString;
byte[] DW = new byte[2];
long oldPosition = stream.Position;
stream.Position = neStart + tableOff;
while(stream.Position < upperLimit + neStart)
{
stringSize = (byte)stream.ReadByte();
if(stringSize == 0) break;
nameString = new byte[stringSize];
stream.Read(nameString, 0, stringSize);
stream.Read(DW, 0, 2);
names.Add(new ResidentName
{
name = Encoding.ASCII.GetString(nameString),
entryTableIndex = BitConverter.ToUInt16(DW, 0)
});
}
stream.Position = oldPosition;
return names.Count > 0 ? names.ToArray() : null;
}
public static ResourceTable GetResources(Stream stream, uint neStart, ushort tableOff, ushort upperLimit)
{
long oldPosition = stream.Position;

34
libexeinfo/NE/NE.cs
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@@ -43,6 +43,8 @@ namespace libexeinfo
public NEHeader Header;
public ResourceTable Resources;
public Version[] Versions;
public ResidentName[] ResidentNames;
public ResidentName[] NonResidentNames;
/// <summary>
/// Initializes a new instance of the <see cref="T:libexeinfo.NE" /> class.
@@ -194,11 +196,35 @@ namespace libexeinfo
if(Header.imported_names_offset >= Header.resource_table_offset &&
Header.imported_names_offset <= resourceUpperLimit) resourceUpperLimit = Header.imported_names_offset;
if(Header.resource_table_offset >= resourceUpperLimit || Header.resource_table_offset == 0) return;
if(Header.resource_table_offset < resourceUpperLimit && Header.resource_table_offset != 0)
{
Resources = GetResources(BaseStream, BaseExecutable.Header.new_offset, Header.resource_table_offset,
resourceUpperLimit);
Versions = GetVersions().ToArray();
}
resourceUpperLimit = ushort.MaxValue;
Resources = GetResources(BaseStream, BaseExecutable.Header.new_offset, Header.resource_table_offset,
resourceUpperLimit);
Versions = GetVersions().ToArray();
if(Header.entry_table_offset >= Header.resident_names_offset &&
Header.entry_table_offset <= resourceUpperLimit) resourceUpperLimit = Header.entry_table_offset;
if(Header.segment_table_offset >= Header.resident_names_offset &&
Header.segment_table_offset <= resourceUpperLimit) resourceUpperLimit = Header.segment_table_offset;
if(Header.module_reference_offset >= Header.resident_names_offset &&
Header.module_reference_offset <= resourceUpperLimit)
resourceUpperLimit = Header.module_reference_offset;
if(Header.nonresident_names_offset >= Header.resident_names_offset &&
Header.nonresident_names_offset <= resourceUpperLimit)
resourceUpperLimit = (ushort)Header.nonresident_names_offset;
if(Header.imported_names_offset >= Header.resident_names_offset &&
Header.imported_names_offset <= resourceUpperLimit) resourceUpperLimit = Header.imported_names_offset;
if(Header.resource_table_offset < resourceUpperLimit && Header.resource_table_offset != 0)
ResidentNames = GetResidentStrings(BaseStream, BaseExecutable.Header.new_offset,
Header.resident_names_offset, resourceUpperLimit);
if(Header.nonresident_table_size > 0)
NonResidentNames = GetResidentStrings(BaseStream, Header.nonresident_names_offset,
0, (ushort)(Header.nonresident_names_offset + Header.nonresident_table_size));
}
/// <summary>

12
libexeinfo/NE/Structs.cs
View File

@@ -141,5 +141,17 @@ namespace libexeinfo
public uint dwSignature;
public uint dwStrucVersion;
}
public struct ResidentName
{
/// <summary>
/// Text of string
/// </summary>
public string name;
/// <summary>
/// Index in the entry table this string refers to
/// </summary>
public ushort entryTableIndex;
}
}
}