diff options
| -rw-r--r-- | usr.sbin/named/named/ns_main.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/usr.sbin/named/named/ns_main.c b/usr.sbin/named/named/ns_main.c index 736b59bf112..c840b613366 100644 --- a/usr.sbin/named/named/ns_main.c +++ b/usr.sbin/named/named/ns_main.c @@ -1,11 +1,11 @@ -/* $OpenBSD: ns_main.c,v 1.4 1997/04/04 09:07:05 deraadt Exp $ */ +/* $OpenBSD: ns_main.c,v 1.5 1997/04/13 21:29:43 provos Exp $ */ #if !defined(lint) && !defined(SABER) #if 0 static char sccsid[] = "@(#)ns_main.c 4.55 (Berkeley) 7/1/91"; static char rcsid[] = "$From: ns_main.c,v 8.24 1996/11/26 10:11:22 vixie Exp $"; #else -static char rcsid[] = "$OpenBSD: ns_main.c,v 1.4 1997/04/04 09:07:05 deraadt Exp $"; +static char rcsid[] = "$OpenBSD: ns_main.c,v 1.5 1997/04/13 21:29:43 provos Exp $"; #endif #endif /* not lint */ @@ -1687,11 +1687,11 @@ net_mask(in) } /* - * These are here in case we ever want to get more clever, like perhaps - * using a bitmap to keep track of outstanding queries and a random - * allocation scheme to make it a little harder to predict them. Note - * that the resolver will need the same protection so the cleverness - * should be put there rather than here; this is just an interface layer. + * This just an interface layer to the random number generator + * used in the resolver. + * A special random number generator is used to create non predictable + * and non repeating ids over a long period. It also avoids reuse + * by switching between two distinct number cycles. */ void @@ -1703,10 +1703,7 @@ nsid_init() u_int16_t nsid_next() { - if (nsid_state == 65535) - nsid_state = 0; - else - nsid_state++; + nsid_state = res_randomid(); return (nsid_state); } |