| 1 | /* |
| 2 | * dlf.h |
| 3 | * |
| 4 | * $Id$ |
| 5 | * |
| 6 | * Dynamic Library Loader (mapping to SVR4) |
| 7 | * |
| 8 | * The iODBC driver manager. |
| 9 | * |
| 10 | * Copyright (C) 1995 by Ke Jin <kejin@empress.com> |
| 11 | * |
| 12 | * This library is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU Library General Public |
| 14 | * License as published by the Free Software Foundation; either |
| 15 | * version 2 of the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This library is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | * Library General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Library General Public |
| 23 | * License along with this library; if not, write to the Free |
| 24 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 25 | */ |
| 26 | #ifndef _DLF_H |
| 27 | #define _DLF_H |
| 28 | #include "config.h" |
| 29 | |
| 30 | #if defined(HAVE_LIBDL) |
| 31 | #define DLDAPI_SVR4_DLFCN |
| 32 | #elif defined(HAVE_SHL_LOAD) |
| 33 | #define DLDAPI_HP_SHL |
| 34 | #endif |
| 35 | |
| 36 | #ifdef DLDAPI_SVR4_DLFCN |
| 37 | #include <dlfcn.h> |
| 38 | #elif DLDAPI_AIX_LOAD |
| 39 | #include <dlfcn.h> |
| 40 | #else |
| 41 | extern void FAR *dlopen (char FAR * path, int mode); |
| 42 | extern void FAR *dlsym (void FAR * hdll, char FAR * sym); |
| 43 | extern char FAR *dlerror (); |
| 44 | extern int dlclose (void FAR * hdll); |
| 45 | #endif |
| 46 | |
| 47 | #ifndef RTLD_LAZY |
| 48 | #define RTLD_LAZY 1 |
| 49 | #endif |
| 50 | |
| 51 | #define DLL_OPEN(dll) (void*)dlopen((char*)(path), RTLD_LAZY) |
| 52 | #define DLL_PROC(hdll, sym) (void*)dlsym((void*)(hdll), (char*)sym) |
| 53 | #define DLL_ERROR() (char*)dlerror() |
| 54 | #define DLL_CLOSE(hdll) dlclose((void*)(hdll)) |
| 55 | #endif |