public async override Task <string> Compare(string ofi, string nfi)
{
StringBuilder sb = new StringBuilder();
string ofi_temp = Path.GetTempFileName();
try
{
string nfi_temp = Path.GetTempFileName();
try
{
await Preprocess(ofi, ofi_temp);
await Preprocess(nfi, nfi_temp);
var cmd = new NullSource()
.Pipe(new Command(Tools.Diff, ofi_temp, nfi_temp))
.Pipe(new StringSink(sb));
await cmd.Run();
}
finally
{
File.Delete(nfi_temp);
}
}
finally
{
File.Delete(ofi_temp);
}
return(sb.ToString());
}
protected async override Task Preprocess(string infile, string outfile)
{
Directory.SetCurrentDirectory(Path.GetDirectoryName(infile));
var cmd = new NullSource()
.Pipe(new Command(Tools.Sigcheck, "-d", infile))
.Pipe(new Command(Tools.Sed, "-n", Tools.Quote(@"/HWID/p;/OS:/p")))
.Pipe(new FileSink(outfile));
await cmd.Run();
}
protected async override Task Preprocess(string infile, string outfile)
{
if (!File.Exists(Tools.Resedit))
{
return;
}
// Resedit doesn't recognize all PE file extensions so always rename to .exe
// and also copy to a separate directory to avoid output file name conflicts
string tmpPath = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
Directory.CreateDirectory(tmpPath);
try
{
string tmpFile = Path.GetTempFileName();
string tmpFileExe = Path.Combine(tmpPath, Path.GetFileNameWithoutExtension(infile) + ".exe");
string tmpFileRc = Path.ChangeExtension(tmpFileExe, "rc");
File.Copy(infile, tmpFileExe);
FileAttributes attributes = File.GetAttributes(tmpFileExe);
if (attributes.HasFlag(FileAttributes.ReadOnly))
{
File.SetAttributes(tmpFileExe, attributes & ~FileAttributes.ReadOnly);
}
var cmd1 = new NullSource()
.Pipe(new Command(Tools.Resedit, "-convert", tmpFileExe, tmpFileRc));
await cmd1.Run();
// normalize versions
var cmd2 = new FileSource(tmpFileRc)
.Pipe(new Command(Tools.Sed, Tools.Quote(@"s/\([0-9]*[,\.][0-9]*[,\.][0-9]*[,\.]\)[0-9]*/\10/")))
.Pipe(new FileSink(outfile));
await cmd2.Run();
// process and delete other resource artifacts
var dir = new DirectoryInfo(Path.GetDirectoryName(tmpFileRc));
foreach (var file in dir.EnumerateFiles("manifest*.xml"))
{
string manifest = File.ReadAllText(file.FullName);
File.AppendAllText(outfile, manifest);
}
}
finally
{
Directory.Delete(tmpPath, true);
}
}
protected async override Task Preprocess(string infile, string outfile)
{
var cmd1 = new NullSource()
.Pipe(new Command(Tools.Dumpbin, "/HEADERS", infile))
.Pipe(new Command(Tools.Sed, "-n", Tools.Quote(@"/machine/p;/characteristics/p;/subsystem/p;/size of image/p;" +
@"s/^.*entry point (.*) \(.*\)$/entry point \1/p")))
.Pipe(new FileSink(outfile));
await cmd1.Run();
SortedDictionary <string, List <string> > importDict = new SortedDictionary <string, List <string> >();
string tmpFile = Path.GetTempFileName();
try
{
var cmd2 = new NullSource()
.Pipe(new Command(Tools.Dumpbin, "/IMPORTS", infile))
.Pipe(new Command(Tools.Sed, "-r", Tools.Quote(@"s/^ *[0-9A-F]+/ /g")))
.Pipe(new Command(Tools.Sed, Tools.Quote(@"/Import Address Table/d;/Import Name Table/d;/time date stamp/d;/Index of first forwarder reference/d")))
.Pipe(new FileSink(tmpFile));
await cmd2.Run();
// sort imports by module and symbol for a nice diff
string line;
string module = null;
using (StreamReader sr = new StreamReader(tmpFile))
{
while ((line = sr.ReadLine()) != null)
{
if (line.StartsWith(" Summary"))
{
// summary is not interesting, bail
break;
}
if (line.StartsWith(" "))
{
importDict[module].Add(line.Trim());
}
else if (line.StartsWith(" "))
{
module = line.Trim().ToUpper();
if (!importDict.ContainsKey(module))
{
importDict[module] = new List <string>();
}
}
}
}
}
finally
{
File.Delete(tmpFile);
}
using (StreamWriter sw = new StreamWriter(outfile, true))
{
foreach (var pair in importDict)
{
var imports = pair.Value;
imports.Sort();
foreach (var import in imports)
{
sw.WriteLine(" " + pair.Key + ": " + import);
}
}
}
}
