From e611b132f9b8abe35b362e5870b74bce94a1e58e Mon Sep 17 00:00:00 2001
From: Adam <you@example.com>
Date: Sat, 16 May 2020 20:51:50 -0700
Subject: initial commit

---
 private/rpcutil/client.c | 182 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 182 insertions(+)
 create mode 100644 private/rpcutil/client.c

(limited to 'private/rpcutil/client.c')

diff --git a/private/rpcutil/client.c b/private/rpcutil/client.c
new file mode 100644
index 000000000..6359c06d1
--- /dev/null
+++ b/private/rpcutil/client.c
@@ -0,0 +1,182 @@
+/*++
+
+Copyright (c) 1990-92  Microsoft Corporation
+
+Module Name:
+
+    client.c
+
+Abstract:
+
+    This file contains commonly used client-side RPC control functions.
+
+Author:
+
+    Dan Lafferty    danl    06-Feb-1991
+
+Environment:
+
+    User Mode - Win32
+
+Revision History:
+
+    06-Feb-1991     danl
+        Created
+    26-Apr-1991 JohnRo
+        Split out MIDL user (allocate,free) so linker doesn't get confused.
+        Deleted tabs.
+    03-July-1991    JimK
+        Copied from LM specific file.
+    27-Feb-1992 JohnRo
+        Fixed heap trashing bug in RpcpBindRpc().
+
+--*/
+
+// These must be included first:
+#include <nt.h>         // needed for NTSTATUS
+#include <ntrtl.h>      // needed for nturtl.h
+#include <nturtl.h>     // needed for windows.h
+#include <windows.h>    // win32 typedefs
+#include <rpc.h>        // rpc prototypes
+#include <ntrpcp.h>
+
+#include <stdlib.h>      // for wcscpy wcscat
+#include <tstr.h>       // WCSSIZE
+
+
+// BUGBUG - Change these when RPC uses Win32 APIs for named pipes.
+//
+#define     LOCAL_NMPIPE_NAME   TEXT("\\Device\\Namedpipe\\")
+#define     REMOTE_NMPIPE_NAME  TEXT("\\Device\\LanmanRedirector\\")
+
+#define     NT_PIPE_PREFIX      TEXT("\\PIPE\\")
+#define     NT_PIPE_PREFIX_W        L"\\PIPE\\"
+
+
+
+NTSTATUS
+RpcpBindRpc(
+    IN  LPWSTR               ServerName,
+    IN  LPWSTR               ServiceName,
+    IN  LPWSTR               NetworkOptions,
+    OUT RPC_BINDING_HANDLE   * pBindingHandle
+    )
+
+/*++
+
+Routine Description:
+
+    Binds to the RPC server if possible.
+
+Arguments:
+
+    ServerName - Name of server to bind with.
+
+    ServiceName - Name of service to bind with.
+
+    pBindingHandle - Location where binding handle is to be placed
+
+Return Value:
+
+    STATUS_SUCCESS - The binding has been successfully completed.
+
+    STATUS_INVALID_COMPUTER_NAME - The ServerName syntax is invalid.
+
+    STATUS_NO_MEMORY - There is not sufficient memory available to the
+        caller to perform the binding.
+
+--*/
+
+{
+    RPC_STATUS        RpcStatus;
+    LPWSTR            StringBinding;
+    LPWSTR            Endpoint;
+    WCHAR             ComputerName[MAX_COMPUTERNAME_LENGTH + 1];
+    LPWSTR            NewServerName = NULL;
+    DWORD             bufLen = MAX_COMPUTERNAME_LENGTH + 1;
+
+    *pBindingHandle = NULL;
+
+    if (ServerName != NULL) {
+        if (GetComputerNameW(ComputerName,&bufLen)) {
+            if ((_wcsicmp(ComputerName,ServerName) == 0) ||
+                ((ServerName[0] == '\\') &&
+                 (ServerName[1] == '\\') &&
+                 (_wcsicmp(ComputerName,&(ServerName[2]))==0))) {
+                NewServerName = NULL;
+            }
+            else {
+                NewServerName = ServerName;
+            }
+        }
+    }
+
+    // We need to concatenate \pipe\ to the front of the service
+    // name.
+
+    Endpoint = (LPWSTR)LocalAlloc(
+                    0,
+                    sizeof(NT_PIPE_PREFIX_W) + WCSSIZE(ServiceName));
+    if (Endpoint == 0) {
+       return(STATUS_NO_MEMORY);
+    }
+    wcscpy(Endpoint,NT_PIPE_PREFIX_W);
+    wcscat(Endpoint,ServiceName);
+
+    RpcStatus = RpcStringBindingComposeW(0, L"ncacn_np", NewServerName,
+                    Endpoint, NetworkOptions, &StringBinding);
+    LocalFree(Endpoint);
+
+    if ( RpcStatus != RPC_S_OK ) {
+        return( STATUS_NO_MEMORY );
+    }
+
+    RpcStatus = RpcBindingFromStringBindingW(StringBinding, pBindingHandle);
+    RpcStringFreeW(&StringBinding);
+    if ( RpcStatus != RPC_S_OK ) {
+        *pBindingHandle = NULL;
+        if (   (RpcStatus == RPC_S_INVALID_ENDPOINT_FORMAT)
+            || (RpcStatus == RPC_S_INVALID_NET_ADDR) ) {
+
+            return( STATUS_INVALID_COMPUTER_NAME );
+        }
+        return(STATUS_NO_MEMORY);
+    }
+    return(STATUS_SUCCESS);
+}
+
+
+NTSTATUS
+RpcpUnbindRpc(
+    IN RPC_BINDING_HANDLE  BindingHandle
+    )
+
+/*++
+
+Routine Description:
+
+    Unbinds from the RPC interface.
+    If we decide to cache bindings, this routine will do something more
+    interesting.
+
+Arguments:
+
+    BindingHandle - This points to the binding handle that is to be closed.
+
+
+Return Value:
+
+
+    STATUS_SUCCESS - the unbinding was successful.
+
+--*/
+{
+    RPC_STATUS       RpcStatus;
+
+    if (BindingHandle != NULL) {
+        RpcStatus = RpcBindingFree(&BindingHandle);
+        ASSERT(RpcStatus == RPC_S_OK);
+    }
+
+    return(STATUS_SUCCESS);
+}
-- 
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