0017-Add-standalone-freezero.patch (1725B)
1 From 98a3b77cfa775c87010159d49f5b17d84fe1aa7b Mon Sep 17 00:00:00 2001 2 From: Michael Forney <mforney@mforney.org> 3 Date: Tue, 10 Oct 2017 03:07:56 -0700 4 Subject: [PATCH] Add standalone freezero 5 6 --- 7 lib/libc/stdlib/freezero.c | 32 ++++++++++++++++++++++++++++++++ 8 1 file changed, 32 insertions(+) 9 create mode 100644 lib/libc/stdlib/freezero.c 10 11 diff --git a/lib/libc/stdlib/freezero.c b/lib/libc/stdlib/freezero.c 12 new file mode 100644 13 index 00000000000..31face3828b 14 --- /dev/null 15 +++ b/lib/libc/stdlib/freezero.c 16 @@ -0,0 +1,32 @@ 17 +/* 18 + * Copyright (c) 2008, 2010, 2011, 2016 Otto Moerbeek <otto@drijf.net> 19 + * Copyright (c) 2012 Matthew Dempsky <matthew@openbsd.org> 20 + * Copyright (c) 2008 Damien Miller <djm@openbsd.org> 21 + * Copyright (c) 2000 Poul-Henning Kamp <phk@FreeBSD.org> 22 + * 23 + * Permission to use, copy, modify, and distribute this software for any 24 + * purpose with or without fee is hereby granted, provided that the above 25 + * copyright notice and this permission notice appear in all copies. 26 + * 27 + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 28 + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 29 + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 30 + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 31 + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 32 + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 33 + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 34 + */ 35 + 36 +#include <string.h> 37 +#include <stdlib.h> 38 + 39 +void 40 +freezero(void *ptr, size_t sz) 41 +{ 42 + /* This is legal. */ 43 + if (ptr == NULL) 44 + return; 45 + 46 + explicit_bzero(ptr, sz); 47 + free(ptr); 48 +} 49 -- 50 2.14.2 51