Mercurial > hg > octave-kai > gnulib-hg
view lib/open-safer.c @ 17409:26a04e61f560
stdio: use __REDIRECT for fwrite, fwrite_unlocked
* lib/stdio.in.h (fwrite):
When working around bug 11959, use __REDIRECT rather than '#define
fwrite(...) ... fwrite (...) ...'. This is a more-targeted way to
fix the -Wunused-value issue with clang, and it works with GCC too.
Problem with targeting reported by Eric Blake in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-05/msg00067.html>.
(fwrite_unlocked): Treat like fwrite. I ran into this issue while
debugging the fwrite issue.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Wed, 15 May 2013 15:52:42 -0700 |
parents | e542fd46ad6f |
children |
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/* Invoke open, but avoid some glitches. Copyright (C) 2005-2006, 2008-2013 Free Software Foundation, Inc. This program 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 3 of the License, or (at your option) any later version. This program 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 program. If not, see <http://www.gnu.org/licenses/>. */ /* Written by Paul Eggert. */ #include <config.h> #include "fcntl-safer.h" #include <fcntl.h> #include <stdarg.h> #include "unistd-safer.h" int open_safer (char const *file, int flags, ...) { mode_t mode = 0; if (flags & O_CREAT) { va_list ap; va_start (ap, flags); /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4 creates crashing code when 'mode_t' is smaller than 'int'. */ mode = va_arg (ap, PROMOTED_MODE_T); va_end (ap); } return fd_safer (open (file, flags, mode)); }