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glibc  2.9
dl-close.c
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00001 /* Copyright (C) 2001 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <stdarg.h>
00020 #include <stdlib.h>
00021 #include <sys/types.h>
00022 #include <errno.h>
00023 #include <dlfcn.h>
00024 #include <dlldr.h>
00025 
00026 extern int _dl_numso;
00027 extern DL_SODATA *_dl_sotable;
00028 
00029 void
00030 _dl_close (void *handle)
00031 {
00032   if ((int) handle < 0 || (int) handle >= _dl_numso || _dl_sotable == NULL)
00033     {
00034       errno = EINVAL;
00035       return;
00036     }
00037 
00038   if (_dl_sotable[(int) handle].handle != 0)
00039     __unload (_dl_sotable[(int) handle].handle);
00040 
00041   _dl_sotable[(int) handle].index = 0;
00042   _dl_sotable[(int) handle].dataorg = 0;
00043   _dl_sotable[(int) handle].handle = 0;
00044   _dl_sotable[(int) handle].type = 0;
00045 }
00046