public static unsafe int QueryContextChannelBinding(SecurDll dll, SafeDeleteContext phContext, ContextAttribute contextAttribute, Bindings* buffer, SafeFreeContextBufferChannelBinding refHandle)
{
switch (dll)
{
case SecurDll.SECURITY:
return QueryContextChannelBinding_SECURITY(phContext, contextAttribute, buffer, refHandle);
case SecurDll.SECUR32:
return QueryContextChannelBinding_SECUR32(phContext, contextAttribute, buffer, refHandle);
case SecurDll.SCHANNEL:
return QueryContextChannelBinding_SCHANNEL(phContext, contextAttribute, buffer, refHandle);
}
return -1;
}
private static unsafe int QueryContextChannelBinding_SCHANNEL(SafeDeleteContext phContext, ContextAttribute contextAttribute, Bindings* buffer, SafeFreeContextBufferChannelBinding refHandle)
{
int num = -2146893055;
bool success = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
phContext.DangerousAddRef(ref success);
}
catch (Exception exception)
{
if (success)
{
phContext.DangerousRelease();
success = false;
}
if (!(exception is ObjectDisposedException))
{
throw;
}
}
finally
{
if (success)
{
num = UnsafeNclNativeMethods.SafeNetHandles_SCHANNEL.QueryContextAttributesA(ref phContext._handle, contextAttribute, (void*) buffer);
phContext.DangerousRelease();
}
if ((num == 0) && (refHandle != null))
{
refHandle.Set(buffer.pBindings);
refHandle.size = buffer.BindingsLength;
}
if ((num != 0) && (refHandle != null))
{
refHandle.SetHandleAsInvalid();
}
}
return num;
}
private unsafe static int QueryContextChannelBinding_SECURITY(SafeDeleteContext phContext, ContextAttribute contextAttribute, Bindings* buffer, SafeFreeContextBufferChannelBinding refHandle)
{
int status = (int)SecurityStatus.InvalidHandle;
bool b = false;
// We don't want to be interrupted by thread abort exceptions or unexpected out-of-memory errors failing to jit
// one of the following methods. So run within a CER non-interruptible block.
RuntimeHelpers.PrepareConstrainedRegions();
try {
phContext.DangerousAddRef(ref b);
}
catch(Exception e) {
if (b)
{
phContext.DangerousRelease();
b = false;
}
if (!(e is ObjectDisposedException))
throw;
}
finally {
if (b)
{
status = UnsafeNclNativeMethods.SafeNetHandles_SECURITY.QueryContextAttributesW(ref phContext._handle, contextAttribute, buffer);
phContext.DangerousRelease();
}
if (status == 0 && refHandle != null) {
refHandle.Set((*buffer).pBindings);
refHandle.size = (*buffer).BindingsLength;
}
if (status != 0 && refHandle != null) {
refHandle.SetHandleAsInvalid();
}
}
return status;
}
public unsafe int QueryContextChannelBinding(SafeDeleteContext phContext, ChannelBindingKind attribute, out SafeFreeContextBufferChannelBinding refHandle)
{
refHandle = SafeFreeContextBufferChannelBinding.CreateEmptyHandle();
// Bindings is on the stack, so there's no need for a fixed block.
Bindings bindings = new Bindings();
int errorCode = SafeFreeContextBufferChannelBinding.QueryContextChannelBinding(phContext, (Interop.Secur32.ContextAttribute)attribute, &bindings, refHandle);
if (errorCode != 0)
{
GlobalLog.Leave("QueryContextChannelBinding", "ERROR = " + ErrorDescription(errorCode));
refHandle = null;
}
return errorCode;
}
public unsafe int QueryContextChannelBinding(SafeDeleteContext phContext, ContextAttribute attribute, out SafeFreeContextBufferChannelBinding refHandle)
{
refHandle = SafeFreeContextBufferChannelBinding.CreateEmptyHandle(Library);
// bindings is on the stack, so there's no need for a fixed block
Bindings bindings = new Bindings();
return SafeFreeContextBufferChannelBinding.QueryContextChannelBinding(Library, phContext, attribute, &bindings, refHandle);
}
