/* * dlproc.h * * $Id: dlproc.h,v 1.17 2006/01/20 15:58:34 source Exp $ * * Load driver and resolve driver's function entry point * * The iODBC driver manager. * * Copyright (C) 1995 by Ke Jin <kejin@empress.com> * Copyright (C) 1996-2006 by OpenLink Software <iodbc@openlinksw.com> * All Rights Reserved. * * This software is released under the terms of either of the following * licenses: * * - GNU Library General Public License (see LICENSE.LGPL) * - The BSD License (see LICENSE.BSD). * * Note that the only valid version of the LGPL license as far as this * project is concerned is the original GNU Library General Public License * Version 2, dated June 1991. * * While not mandated by the BSD license, any patches you make to the * iODBC source code may be contributed back into the iODBC project * at your discretion. Contributions will benefit the Open Source and * Data Access community as a whole. Submissions may be made at: * * http://www.iodbc.org * * * GNU Library Generic Public License Version 2 * ============================================ * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; only * Version 2 of the License dated June 1991. * * 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * * The BSD License * =============== * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name of OpenLink Software Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL OPENLINK OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _DLPROC_H #define _DLPROC_H #include <dlf.h> #if defined(_MAC) || defined (__cplusplus) typedef SQLRETURN (* HPROC) (...); #else typedef SQLRETURN (* HPROC) (); #endif #ifdef DLDAPI_SVR4_DLFCN #include <dlfcn.h> #endif #ifdef DLDAPI_HP_SHL #include <dl.h> typedef shl_t HDLL; #endif #if defined(_BE) || \ defined(_MAC) || \ defined(_MACX) || \ defined(DLDAPI_AIX_LOAD) || \ defined(DLDAPI_DYLD) || \ defined(DLDAPI_MACX) || \ defined(DLDAPI_SVR4_DLFCN) || \ defined(VMS) typedef void *HDLL; #endif typedef struct _dl_s { char * path; HDLL dll; unsigned int refcount; int safe_unload; struct _dl_s * next; } dlproc_t; /* dlproc.c */ HPROC _iodbcdm_getproc (HDBC hdbc, int idx); HDLL _iodbcdm_dllopen (char *path); HPROC _iodbcdm_dllproc (HDLL hdll, char *sym); int _iodbcdm_dllclose (HDLL hdll); char *_iodbcdm_dllerror (void); void _iodbcdm_safe_unload (HDLL hdll); #define SQL_NULL_HDLL ((HDLL)NULL) #define SQL_NULL_HPROC ((HPROC)NULL) #endif