Mercurial > gnulib
view lib/sys_file.in.h @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
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/* Provide a more complete sys/file.h. Copyright (C) 2007-2019 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 2, 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 <https://www.gnu.org/licenses/>. */ /* Written by Richard W.M. Jones. */ #ifndef _@GUARD_PREFIX@_SYS_FILE_H #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ #endif @PRAGMA_COLUMNS@ /* The include_next requires a split double-inclusion guard. */ #if @HAVE_SYS_FILE_H@ # @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@ #endif #ifndef _@GUARD_PREFIX@_SYS_FILE_H #define _@GUARD_PREFIX@_SYS_FILE_H #ifndef LOCK_SH /* Operations for the 'flock' call (same as Linux kernel constants). */ # define LOCK_SH 1 /* Shared lock. */ # define LOCK_EX 2 /* Exclusive lock. */ # define LOCK_UN 8 /* Unlock. */ /* Can be OR'd in to one of the above. */ # define LOCK_NB 4 /* Don't block when locking. */ #endif /* The definition of _GL_WARN_ON_USE is copied here. */ #if @GNULIB_FLOCK@ /* Apply or remove advisory locks on an open file. Return 0 if successful, otherwise -1 and errno set. */ # if !@HAVE_FLOCK@ extern int flock (int fd, int operation); # endif #elif defined GNULIB_POSIXCHECK # undef flock # if HAVE_RAW_DECL_FLOCK _GL_WARN_ON_USE (flock, "flock is unportable - " "use gnulib module flock for portability"); # endif #endif #endif /* _@GUARD_PREFIX@_SYS_FILE_H */ #endif /* _@GUARD_PREFIX@_SYS_FILE_H */