-/*
-Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
-
-This file is part of the GNU IO 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.
-
-This 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.
-
-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.
-
-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. */
+/* Copyright (C) 1993-2019 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
+ 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.
+
+ 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
+ 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, see
+ <http://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,
+ 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 "libioP.h"
-#include "stdio.h"
+#include <stdio.h>
int
-fileno (fp)
- _IO_FILE* fp;
+__fileno (FILE *fp)
{
CHECK_FILE (fp, EOF);
- if (!(fp->_flags & _IO_IS_FILEBUF))
- return EOF;
+ if (!(fp->_flags & _IO_IS_FILEBUF) || _IO_fileno (fp) < 0)
+ {
+ __set_errno (EBADF);
+ return -1;
+ }
return _IO_fileno (fp);
}
+libc_hidden_def (__fileno)
+weak_alias (__fileno, fileno)
+libc_hidden_weak (fileno)
-#ifdef _IO_MTSAFE_IO
/* The fileno implementation for libio does not require locking because
it only accesses once a single variable and this is already atomic
- (at least at thread level). */
+ (at least at thread level). Therefore we don't test _IO_MTSAFE_IO here. */
-weak_alias (fileno_unlocked, fileno)
-weak_alias (fileno_locked, fileno)
-#endif
+weak_alias (__fileno, fileno_unlocked)