diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/conf/files | 1 | ||||
| -rw-r--r-- | sys/libkern/explicit_bzero.c | 24 | ||||
| -rw-r--r-- | sys/sys/systm.h | 1 |
3 files changed, 26 insertions, 0 deletions
diff --git a/sys/conf/files b/sys/conf/files index 1ed363b..fc3a093 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -3266,6 +3266,7 @@ libkern/asprintf.c standard libkern/bcd.c standard libkern/bsearch.c standard libkern/crc32.c standard +libkern/explicit_bzero.c standard libkern/flsll.c standard libkern/fnmatch.c standard libkern/iconv.c optional libiconv diff --git a/sys/libkern/explicit_bzero.c b/sys/libkern/explicit_bzero.c new file mode 100644 index 0000000..2468c55 --- /dev/null +++ b/sys/libkern/explicit_bzero.c @@ -0,0 +1,24 @@ +/* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */ +/* + * Public domain. + * Written by Matthew Dempsky. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/libkern.h> + +__attribute__((weak)) void __explicit_bzero_hook(void *, size_t); + +__attribute__((weak)) void +__explicit_bzero_hook(void *buf, size_t len) +{ +} + +void +explicit_bzero(void *buf, size_t len) +{ + memset(buf, 0, len); + __explicit_bzero_hook(buf, len); +} diff --git a/sys/sys/systm.h b/sys/sys/systm.h index cb83ba4..83e4f12 100644 --- a/sys/sys/systm.h +++ b/sys/sys/systm.h @@ -238,6 +238,7 @@ void hexdump(const void *ptr, int length, const char *hdr, int flags); #define ovbcopy(f, t, l) bcopy((f), (t), (l)) void bcopy(const void *from, void *to, size_t len) __nonnull(1) __nonnull(2); void bzero(void *buf, size_t len) __nonnull(1); +void explicit_bzero(void *, size_t) __nonnull(1);; void *memcpy(void *to, const void *from, size_t len) __nonnull(1) __nonnull(2); void *memmove(void *dest, const void *src, size_t n) __nonnull(1) __nonnull(2); |
