Sweden-Number/dlls/winecrt0/unix_lib.c

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/*
* Support for the Unix part of builtin dlls
*
* Copyright 2019 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifdef _WIN32
#include <stdarg.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
static NTSTATUS (__cdecl *p__wine_init_unix_lib)( HMODULE, DWORD, const void *, void * );
static void load_func( void **func, const char *name, void *def )
{
if (!*func)
{
HMODULE module = GetModuleHandleA( "ntdll.dll" );
void *proc = GetProcAddress( module, name );
InterlockedExchangePointer( func, proc ? proc : def );
}
}
#define LOAD_FUNC(name) load_func( (void **)&p ## name, #name, fallback ## name )
static NTSTATUS __cdecl fallback__wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
{
return STATUS_DLL_NOT_FOUND;
}
NTSTATUS __cdecl __wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
{
LOAD_FUNC( __wine_init_unix_lib );
return p__wine_init_unix_lib( module, reason, ptr_in, ptr_out );
}
#endif /* _WIN32 */