diff options
| -rw-r--r-- | include/string.h | 1 | ||||
| -rw-r--r-- | src/string/explicit_bzero.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/string.h b/include/string.h index ce1dc300..795a2abc 100644 --- a/include/string.h +++ b/include/string.h @@ -82,6 +82,7 @@ void *memccpy (void *__restrict, const void *__restrict, int, size_t); char *strsep(char **, const char *); size_t strlcat (char *, const char *, size_t); size_t strlcpy (char *, const char *, size_t); +void explicit_bzero (void *, size_t); #endif #ifdef _GNU_SOURCE diff --git a/src/string/explicit_bzero.c b/src/string/explicit_bzero.c new file mode 100644 index 00000000..3d270040 --- /dev/null +++ b/src/string/explicit_bzero.c @@ -0,0 +1,8 @@ +#define _BSD_SOURCE +#include <string.h> + +void explicit_bzero(void *d, size_t n) +{ + memset(d, 0, n); + __asm__ __volatile__ ("" : : "r"(d) : "memory"); +} |