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[thirdparty/glibc.git] / libio / ftello64.c

diff --git a/libio/ftello64.c b/libio/ftello64.c
index 32fb38797e5d4f66b039df315c9ce62b1f87bbe9..449c17193b42ba1589ed46435ceef9f01a275a08 100644 (file)
--- a/libio/ftello64.c
+++ b/libio/ftello64.c
@@ -1,64 +1,57 @@
-/* Copyright (C) 1993, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU IO Library.
+/* Copyright (C) 1993-2019 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-   This library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2, or (at
-   your option) any later version.
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
 
-   This library is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
+   The GNU C 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
-   General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU General Public License
-   along with this library; see the file COPYING.  If not, write to
-   the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
-   MA 02111-1307, USA.
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.
 
-   As a special exception, if you link this library with files
-   compiled with a GNU compiler to produce an executable, this does
-   not cause the resulting executable to be covered by the GNU General
-   Public License.  This exception does not however invalidate any
-   other reasons why the executable file might be covered by the GNU
-   General Public License.  */
+   As a special exception, if you link the code in this file with
+   files compiled with a GNU compiler to produce an executable,
+   that does not cause the resulting executable to be covered by
+   the GNU Lesser General Public License.  This exception does not
+   however invalidate any other reasons why the executable file
+   might be covered by the GNU Lesser General Public License.
+   This exception applies to code released by its copyright holders
+   in files containing the exception.  */
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <libioP.h>
 #include <errno.h>
 
+#ifndef __OFF_T_MATCHES_OFF64_T
 
 off64_t
-ftello64 (fp)
-     _IO_FILE *fp;
+__ftello64 (FILE *fp)
 {
-#ifdef _G_LSEEK64
-  _IO_off64_t pos;
+  off64_t pos;
   CHECK_FILE (fp, -1L);
-  _IO_cleanup_region_start ((void (*) (void *)) _IO_funlockfile, fp);
-  _IO_flockfile (fp);
-  pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
-  if (_IO_in_backup (fp))
+  _IO_acquire_lock (fp);
+  pos = _IO_seekoff_unlocked (fp, 0, _IO_seek_cur, 0);
+  if (_IO_in_backup (fp) && pos != _IO_pos_BAD)
     {
       if (fp->_mode <= 0)
        pos -= fp->_IO_save_end - fp->_IO_save_base;
-      else
-       abort ();
     }
-  _IO_funlockfile (fp);
-  _IO_cleanup_region_end (0);
+  _IO_release_lock (fp);
   if (pos == _IO_pos_BAD)
     {
-#ifdef EIO
       if (errno == 0)
        __set_errno (EIO);
-#endif
       return -1L;
     }
   return pos;
-#else
-  __set_errno (ENOSYS);
-  return -1;
-#endif
 }
+libc_hidden_def (__ftello64)
+weak_alias (__ftello64, ftello64)
+#endif