Originální popis anglicky: 
bzero - write zero bytes
Návod, kniha: Linux Programmer's Manual
#include <strings.h>
 
void bzero(void *s, size_t n);
The 
bzero() function sets the first 
n bytes of the byte area
  starting at 
s to zero.
None.
4.3BSD. This function is deprecated -- use 
memset in new programs.
memset(3), 
swab(3)