diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2003-02-14 17:12:55 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2003-02-14 17:12:55 +0000 |
| commit | a86f6a73646ec070054ca2c946f5a3003613d6ed (patch) | |
| tree | 886c79cf97c0f51f1d81fe5ec3b21c01ce12d472 /lib/libc/crypt/arc4random.c | |
| parent | 1366f91c08553f00d4ca497d6240b42f1916917e (diff) | |
re-stir if pid changes; markus & me
Diffstat (limited to 'lib/libc/crypt/arc4random.c')
| -rw-r--r-- | lib/libc/crypt/arc4random.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/libc/crypt/arc4random.c b/lib/libc/crypt/arc4random.c index 4e916ab99a1..a41001bcc3d 100644 --- a/lib/libc/crypt/arc4random.c +++ b/lib/libc/crypt/arc4random.c @@ -1,4 +1,4 @@ -/* $OpenBSD: arc4random.c,v 1.6 2001/06/05 05:05:38 pvalchev Exp $ */ +/* $OpenBSD: arc4random.c,v 1.7 2003/02/14 17:12:54 deraadt Exp $ */ /* * Arc4 random number generator for OpenBSD. @@ -44,8 +44,9 @@ struct arc4_stream { u_int8_t s[256]; }; -int rs_initialized; +static int rs_initialized; static struct arc4_stream rs; +static pid_t arc4_stir_pid; static inline void arc4_init(as) @@ -113,6 +114,7 @@ arc4_stir(as) /* fd < 0 or failed sysctl ? Ah, what the heck. We'll just take * whatever was on the stack... */ + arc4_stir_pid = getpid(); arc4_addrandom(as, (void *) &rdat, sizeof(rdat)); } @@ -166,7 +168,7 @@ arc4random_addrandom(dat, datlen) u_int32_t arc4random() { - if (!rs_initialized) + if (!rs_initialized || arc4_stir_pid != getpid()) arc4random_stir(); return arc4_getword(&rs); } |