diff options
Diffstat (limited to 'libio/peekc.c')
-rw-r--r-- | libio/peekc.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libio/peekc.c b/libio/peekc.c new file mode 100644 index 0000000000..2b0a812868 --- /dev/null +++ b/libio/peekc.c @@ -0,0 +1,41 @@ +/* +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. */ + +#include "libioP.h" +#include "stdio.h" + +#undef _IO_peekc + +int +_IO_peekc_locked (fp) + FILE *fp; +{ + int result; + CHECK_FILE (fp, EOF); + __libc_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp); + _IO_flockfile (fp); + result = _IO_peekc_unlocked (fp); + __libc_cleanup_region_end (1); + return result; +} |