dlfcn/dlclose.c

   1 /* Close a handle opened by `dlopen'.
   2    Copyright (C) 1995-2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <dlfcn.h>
  20 #include <ldsodefs.h>
  21
  22 #if !defined SHARED && IS_IN (libdl)
  23
  24 int
  25 dlclose (void *handle)
  26 {
  27   return __dlclose (handle);
  28 }
  29
  30 #else
  31
  32 static void
  33 dlclose_doit (void *handle)
  34 {
  35   GLRO(dl_close) (handle);
  36 }
  37
  38 int
  39 __dlclose (void *handle)
  40 {
  41 # ifdef SHARED
  42   if (__glibc_unlikely (_dlfcn_hook != NULL))
  43     return _dlfcn_hook->dlclose (handle);
  44 # endif
  45
  46   return _dlerror_run (dlclose_doit, handle) ? -1 : 0;
  47 }
  48 # ifdef SHARED
  49 strong_alias (__dlclose, dlclose)
  50 # endif
  51 #endif