internal static int LookupSid(string serverName, NetCred credentials, byte[] sid, out string name, out string domainName, out int accountUsage)
{
int num;
IntPtr zero = IntPtr.Zero;
int num1 = 0;
int num2 = 0;
accountUsage = 0;
name = null;
domainName = null;
IntPtr intPtr = IntPtr.Zero;
try
{
zero = Utils.ConvertByteArrayToIntPtr(sid);
Utils.BeginImpersonation(credentials, out intPtr);
bool flag = UnsafeNativeMethods.LookupAccountSid(serverName, zero, null, ref num1, null, ref num2, ref accountUsage);
int lastWin32Error = Marshal.GetLastWin32Error();
if (lastWin32Error == 122)
{
StringBuilder stringBuilder = new StringBuilder(num1);
StringBuilder stringBuilder1 = new StringBuilder(num2);
flag = UnsafeNativeMethods.LookupAccountSid(serverName, zero, stringBuilder, ref num1, stringBuilder1, ref num2, ref accountUsage);
if (flag)
{
name = stringBuilder.ToString();
domainName = stringBuilder1.ToString();
num = 0;
}
else
{
lastWin32Error = Marshal.GetLastWin32Error();
num = lastWin32Error;
}
}
else
{
num = lastWin32Error;
}
}
finally
{
if (zero != IntPtr.Zero)
{
Marshal.FreeHGlobal(zero);
}
if (intPtr != IntPtr.Zero)
{
Utils.EndImpersonation(intPtr);
}
}
return(num);
}
internal static int LookupSid(string serverName, NetCred credentials, byte[] sid, out string name, out string domainName, out int accountUsage)
{
IntPtr pSid = IntPtr.Zero;
int nameLength = 0;
int domainNameLength = 0;
StringBuilder sbName;
StringBuilder sbDomainName;
accountUsage = 0;
name = null;
domainName = null;
IntPtr hUser = IntPtr.Zero;
try
{
pSid = ConvertByteArrayToIntPtr(sid);
Utils.BeginImpersonation(credentials, out hUser);
// hUser could be null if no credentials were specified
Debug.Assert(hUser != IntPtr.Zero ||
(credentials == null || (credentials.UserName == null && credentials.Password == null)));
bool f = UnsafeNativeMethods.LookupAccountSid(serverName, pSid, null, ref nameLength, null, ref domainNameLength, ref accountUsage);
int lastErr = Marshal.GetLastWin32Error();
if (lastErr != 122) // ERROR_INSUFFICIENT_BUFFER
{
GlobalDebug.WriteLineIf(GlobalDebug.Error, "Utils", "LookupSid: LookupAccountSid (1st try) failed, gle=" + lastErr);
return(lastErr);
}
Debug.Assert(f == false); // should never succeed, with a 0 buffer size
Debug.Assert(nameLength > 0);
Debug.Assert(domainNameLength > 0);
sbName = new StringBuilder(nameLength);
sbDomainName = new StringBuilder(domainNameLength);
f = UnsafeNativeMethods.LookupAccountSid(serverName, pSid, sbName, ref nameLength, sbDomainName, ref domainNameLength, ref accountUsage);
if (f == false)
{
lastErr = Marshal.GetLastWin32Error();
Debug.Assert(lastErr != 0);
GlobalDebug.WriteLineIf(GlobalDebug.Error, "Utils", "LookupSid: LookupAccountSid (2nd try) failed, gle=" + lastErr);
return(lastErr);
}
name = sbName.ToString();
domainName = sbDomainName.ToString();
return(0);
}
finally
{
if (pSid != IntPtr.Zero)
{
Marshal.FreeHGlobal(pSid);
}
if (hUser != IntPtr.Zero)
{
Utils.EndImpersonation(hUser);
}
}
}
