Tim Van Wassenhove

These days building OpenSSL with Visual Studio 2008 has become really easy. I don’t like to edit .cnf files so i decided to patch the code a little so that the default configuration file becomes openssl.config:

string basePath = @"C:\src\openssl-0.9.8g";

string originalConfigfile = "openssl.cnf";
string updatedConfigfile = "openssl.config";
foreach (string filename in Directory.GetFiles(basePath, "*.*", SearchOption.AllDirectories))
{
 string contents = File.ReadAllText(filename);
 if (contents.Contains(originalConfigfile))
 {
  Console.WriteLine(filename);
  File.WriteAllText(filename, contents.Replace(originalConfigfile, updatedConfigfile));
 }
}

File.WriteAllText(basePath + @"\apps\" + updatedConfigfile, File.ReadAllText(basePath + @"\apps\" + originalConfigfile));

Open a Visual Studio 2008 Command prompt and add references to the Microsoft SDK as following:

SET PATH=%PATH%;C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin SET LIB=%LIB%;C:\Program Files\Microsoft SDKs\Windows\v6.0A\Lib SET INCLUDE=%INCLUDE%;C:\Program Files\Microsoft SDKs\Windows\v6.0A\Include

Now we simply have to follow the tasks listed in INSTALL.W32:

perl Configure VC-WIN32 –prefix=c:/openssl ms\do_masm nmake -f ms\ntdll.mak nmake -f ms\ntdll.mak test nmake -f ms\ntdll.mak install

Happy OpenSSL’ing!