pyuno/source/module/pyuno_dlopenwrapper.c

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: pyuno_dlopenwrapper.c,v $
  10  * $Revision: 1.4 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 #include <rtl/string.h>
  32
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 #ifdef LINUX
  37 #  ifndef __USE_GNU
  38 #  define __USE_GNU
  39 #  endif
  40 #endif
  41 #include <dlfcn.h>
  42
  43 void initpyuno ()
  44 {
  45     Dl_info dl_info;
  46     void (*func)(void);
  47
  48     if (dladdr((void*)&initpyuno, &dl_info) != 0) {
  49         void* h = 0;
  50     size_t len = strrchr(dl_info.dli_fname, '/') - dl_info.dli_fname + 1;
  51     char* libname = malloc(len + RTL_CONSTASCII_LENGTH( SAL_DLLPREFIX "pyuno" SAL_DLLEXTENSION ) + 1);
  52         strncpy(libname, dl_info.dli_fname, len);
  53         strcpy(libname + (len), SAL_DLLPREFIX "pyuno" SAL_DLLEXTENSION);
  54
  55         h = dlopen (libname, RTLD_NOW | RTLD_GLOBAL);
  56     free(libname);
  57         if( h )
  58         {
  59             func = (void (*)())dlsym (h, "initpyuno");
  60             (func) ();
  61         }
  62     }
  63 }