diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1997-06-12 19:55:42 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1997-06-12 19:55:42 +0000 |
| commit | f46ea122362295d759ff2a538dfd9b29600626d9 (patch) | |
| tree | 87cc5e11c3b8b86194872ff38f752590b45c3498 | |
| parent | bd0077b6cdc82642fea7c3df92b57d5a377634cf (diff) | |
if >100 doms requested, start killing old ones to avoid starvation problems
| -rw-r--r-- | usr.sbin/ypbind/ypbind.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/usr.sbin/ypbind/ypbind.c b/usr.sbin/ypbind/ypbind.c index 8525a7c969b..82ce46b2110 100644 --- a/usr.sbin/ypbind/ypbind.c +++ b/usr.sbin/ypbind/ypbind.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ypbind.c,v 1.26 1997/06/11 23:16:33 deraadt Exp $ */ +/* $OpenBSD: ypbind.c,v 1.27 1997/06/12 19:55:41 deraadt Exp $ */ /* * Copyright (c) 1996 Theo de Raadt <deraadt@theos.com> @@ -34,7 +34,7 @@ */ #ifndef LINT -static char rcsid[] = "$OpenBSD: ypbind.c,v 1.26 1997/06/11 23:16:33 deraadt Exp $"; +static char rcsid[] = "$OpenBSD: ypbind.c,v 1.27 1997/06/12 19:55:41 deraadt Exp $"; #endif #include <sys/param.h> @@ -79,6 +79,7 @@ struct _dom_binding { int dom_socket; CLIENT *dom_client; long dom_vers; + time_t dom_first_t; time_t dom_check_t; time_t dom_ask_t; int dom_lockfd; @@ -165,8 +166,21 @@ ypbindproc_domain_2x(transp, argp, clnt) for (ypdb = ypbindlist; ypdb && count < 100; ypdb = ypdb->dom_pnext) count++; - if (count >= 100) - return NULL; /* prevent DOS: sorry, you lose */ + if (count >= 100) { + struct _dom_binding *ypdbo = NULL; + + /* OK, find an old inactive domain, and kill it */ + for (ypdb = ypbindlist; ypdb; ypdbo = ypdb, ypdb = ypdb->dom_pnext) + if (ypdb->dom_alive == 0 && + ypdb->dom_first_t + 120 < time(NULL)) { + if (ypdb == ypbindlist) + ypbindlist = ypdb->dom_pnext; + else + ypdbo->dom_pnext = ypdb->dom_pnext; + free(ypdb); + break; + } + } for (ypdb = ypbindlist; ypdb; ypdb = ypdb->dom_pnext) if (!strcmp(ypdb->dom_domain, *argp)) |