1 /* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */ 2 /* 3 * Public domain. 4 * Written by Matthew Dempsky. 5 */ 6 7 #include <sys/cdefs.h> 8 __FBSDID("$FreeBSD$"); 9 10 #ifdef _KERNEL 11 #include <sys/libkern.h> 12 #else 13 #include <string.h> 14 #endif /* _KERNEL */ 15 16 __attribute__((weak)) void __explicit_bzero_hook(void *, size_t); 17 18 __attribute__((weak)) void 19 __explicit_bzero_hook(void *buf, size_t len) 20 { 21 } 22 23 void 24 explicit_bzero(void *buf, size_t len) 25 { 26 memset(buf, 0, len); 27 __explicit_bzero_hook(buf, len); 28 } 29