Update copyright dates with scripts/update-copyrights

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

diff --git a/libio/ioseekpos.c b/libio/ioseekpos.c
index 4799404ec9fe25beb203256b8fb574a6f4b95f57..ea9cba900ef4108e90f65de4092ac7a730286c2f 100644 (file)
--- a/libio/ioseekpos.c
+++ b/libio/ioseekpos.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -12,9 +12,8 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.
 
    As a special exception, if you link the code in this file with
    files compiled with a GNU compiler to produce an executable,
@@ -27,25 +26,34 @@
 
 #include <libioP.h>
 
-_IO_off64_t
-_IO_seekpos (fp, pos, mode)
-     _IO_FILE *fp;
-     _IO_off64_t pos;
-     int mode;
+off64_t
+_IO_seekpos_unlocked (FILE *fp, off64_t pos, int mode)
 {
-  _IO_off64_t retval;
-
   /* If we have a backup buffer, get rid of it, since the __seekoff
      callback may not know to do the right thing about it.
      This may be over-kill, but it'll do for now. TODO */
-  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
-  _IO_flockfile (fp);
+  if (_IO_fwide (fp, 0) <= 0)
+    {
+      if (_IO_have_backup (fp))
+       _IO_free_backup_area (fp);
+    }
+  else
+    {
+      if (_IO_have_wbackup (fp))
+       _IO_free_wbackup_area (fp);
+    }
+
+  return _IO_SEEKOFF (fp, pos, 0, mode);
+}
 
-  if (_IO_have_backup (fp))
-    _IO_free_backup_area (fp);
-  retval = _IO_SEEKPOS (fp, pos, mode);
 
-  _IO_funlockfile (fp);
-  _IO_cleanup_region_end (0);
+off64_t
+_IO_seekpos (FILE *fp, off64_t pos, int mode)
+{
+  off64_t retval;
+
+  _IO_acquire_lock (fp);
+  retval = _IO_seekpos_unlocked (fp, pos, mode);
+  _IO_release_lock (fp);
   return retval;
 }