You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.0 KiB
99 lines
2.0 KiB
/*++
|
|
|
|
Copyright (c) 1996 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
rpc.c
|
|
|
|
Abstract:
|
|
|
|
Handy utility functions for supporting RPC
|
|
|
|
Author:
|
|
|
|
John Vert (jvert) 2-Jan-1996
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
#include "clusrtlp.h"
|
|
#include "rpc.h"
|
|
|
|
void __RPC_FAR * __RPC_API MIDL_user_allocate(size_t len)
|
|
{
|
|
return(LocalAlloc(LMEM_FIXED, len));
|
|
}
|
|
|
|
void __RPC_API MIDL_user_free(void __RPC_FAR * ptr)
|
|
{
|
|
LocalFree(ptr);
|
|
}
|
|
|
|
LPWSTR
|
|
ClRtlMakeGuid(
|
|
VOID
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Creates a new GUID in string form.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
A pointer to the GUID string if successful.
|
|
NULL if unsuccessful.
|
|
|
|
Notes:
|
|
|
|
The storage for the GUID string must be freed by the caller.
|
|
Sometimes, the GUID storage is copied to a buffer that is
|
|
allocated using another allocator. At that point, the free
|
|
routines can't tell where free method to call. Sometimes this
|
|
causes a problem. To get around this problem, antoher buffer
|
|
is allocated such that the free methods will always work.
|
|
|
|
--*/
|
|
{
|
|
DWORD sc;
|
|
UUID guid;
|
|
LPWSTR guidString = NULL;
|
|
LPWSTR guidBuffer = NULL;
|
|
|
|
|
|
sc = UuidCreate( &guid );
|
|
if ( ( sc == RPC_S_OK ) || ( sc == RPC_S_UUID_LOCAL_ONLY ) ) {
|
|
|
|
sc = UuidToString( &guid, &guidString );
|
|
if ( sc == RPC_S_OK ) {
|
|
|
|
guidBuffer = LocalAlloc( LMEM_FIXED, ( wcslen( guidString ) + 1 ) * sizeof( WCHAR ) );
|
|
if ( guidBuffer != NULL )
|
|
wcscpy( guidBuffer, guidString );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
// if either UuidCreate or UuidToString fails, sc will reflect that
|
|
// failure which should be set by this function. If LocalAlloc fails, it
|
|
// will have called SetLastError and we want to propagate that value back
|
|
// to the caller.
|
|
//
|
|
if ( sc != RPC_S_OK )
|
|
SetLastError( sc );
|
|
|
|
if ( guidString != NULL )
|
|
{
|
|
RpcStringFree( &guidString );
|
|
} // if:
|
|
|
|
return( guidBuffer );
|
|
|
|
} // ClRtlMakeGuid
|