From cceaaa8161eb8b0b39854215417b39a9703b7aa5 Mon Sep 17 00:00:00 2001 From: jvoisin Date: Mon, 21 Aug 2023 17:46:03 +0200 Subject: Harden umask --- include/sys/stat.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 include/sys/stat.h (limited to 'include') diff --git a/include/sys/stat.h b/include/sys/stat.h new file mode 100644 index 0000000..2de34db --- /dev/null +++ b/include/sys/stat.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2015-2016 Dimitris Papastamos + * Copyright (C) 2022 q66 + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _FORTIFY_SYS_STAT_H +#define _FORTIFY_SYS_STAT_H + +#if !defined(__cplusplus) && !defined(__clang__) +__extension__ +#endif +#include_next + +#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 +#include "../fortify-headers.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(__clang__) /* FIXME */ +#undef umask + +__error_if(__m & ~0777, "'umask' called with invalid mode") +_FORTIFY_FN(umask) mode_t umask(mode_t __m) +{ + return __orig_umask(__m); +} +#endif + +#ifdef __cplusplus +} +#endif + +#endif + +#endif -- cgit v1.3