|BZERO(3)||Library Functions Manual||BZERO(3)|
bzero() function writes len zero bytes to the string b. If len is zero,
bzero() does nothing.
explicit_bzero() variant behaves the
same, but will not be removed by a compiler's dead store optimization pass,
making it useful for clearing sensitive memory such as a password.
bzero() function conforms to the X/Open System Interfaces option of the IEEE Std 1003.1-2004 (“POSIX.1”) specification. It was removed from the standard in IEEE Std 1003.1-2008 (“POSIX.1”), which recommends using memset(3) instead.
explicit_bzero() function is an
bzero() function first appeared in 4.2BSD. The
explicit_bzero() function first appeared in OpenBSD 5.5.
|October 12, 2017||OpenBSD-current|