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/*++
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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