From 98a3b77cfa775c87010159d49f5b17d84fe1aa7b Mon Sep 17 00:00:00 2001 From: Michael Forney Date: Tue, 10 Oct 2017 03:07:56 -0700 Subject: [PATCH] Add standalone freezero --- lib/libc/stdlib/freezero.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 lib/libc/stdlib/freezero.c diff --git a/lib/libc/stdlib/freezero.c b/lib/libc/stdlib/freezero.c new file mode 100644 index 00000000000..31face3828b --- /dev/null +++ b/lib/libc/stdlib/freezero.c @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2008, 2010, 2011, 2016 Otto Moerbeek + * Copyright (c) 2012 Matthew Dempsky + * Copyright (c) 2008 Damien Miller + * Copyright (c) 2000 Poul-Henning Kamp + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * 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. + */ + +#include +#include + +void +freezero(void *ptr, size_t sz) +{ + /* This is legal. */ + if (ptr == NULL) + return; + + explicit_bzero(ptr, sz); + free(ptr); +} -- 2.14.2