diff options
| author |   deraadt <deraadt@openbsd.org> | 2014-07-17 14:30:41 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 2014-07-17 14:30:41 +0000 |
| commit | 29a8d8f8233aa7f86e86994c7b6886165d09ae25 (patch) | |
| tree | b6d726aa28cfe51789e914e2f0a62be190eea14a /lib/libc/crypt/arc4random.c | |
| parent | zero random buf for sysctl too, just in case (diff) | |
| download | wireguard-openbsd-29a8d8f8233aa7f86e86994c7b6886165d09ae25.tar.xz wireguard-openbsd-29a8d8f8233aa7f86e86994c7b6886165d09ae25.zip | |
"Race-free because we're running single-threaded in a new
address space, and once allocated rs is never deallocated."
document the forkhandler to save reviewers time, with matthew
Diffstat (limited to 'lib/libc/crypt/arc4random.c')
| -rw-r--r-- | lib/libc/crypt/arc4random.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/libc/crypt/arc4random.c b/lib/libc/crypt/arc4random.c index 3b7f34faed5..565bfa03336 100644 --- a/lib/libc/crypt/arc4random.c +++ b/lib/libc/crypt/arc4random.c @@ -1,4 +1,4 @@ -/* $OpenBSD: arc4random.c,v 1.45 2014/07/16 00:18:54 deraadt Exp $ */ +/* $OpenBSD: arc4random.c,v 1.46 2014/07/17 14:30:41 deraadt Exp $ */ /* * Copyright (c) 1996, David Mazieres <dm@uun.org> @@ -69,6 +69,10 @@ static inline void _rs_rekey(u_char *dat, size_t datlen); static inline void _rs_forkhandler(void) { + /* + * Race-free because we're running single-threaded in a new + * address space, and once allocated rs is never deallocated. + */ if (rs) rs->rs_count = 0; } |