1 /* 2 * Copyright (c) 2008, 2010, 2011, 2016 Otto Moerbeek <otto@drijf.net> 3 * Copyright (c) 2012 Matthew Dempsky <matthew@openbsd.org> 4 * Copyright (c) 2008 Damien Miller <djm@openbsd.org> 5 * Copyright (c) 2000 Poul-Henning Kamp <phk@FreeBSD.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <string.h> 21 #include <stdlib.h> 22 23 void 24 freezero(void *ptr, size_t sz) 25 { 26 /* This is legal. */ 27 if (ptr == NULL) 28 return; 29 30 explicit_bzero(ptr, sz); 31 free(ptr); 32 } 33