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authormillert <millert@openbsd.org>2002-05-20 23:33:31 +0000
committermillert <millert@openbsd.org>2002-05-20 23:33:31 +0000
commitba45d2116dc8de2bc989ee7e01286c86ee130f88 (patch)
tree31aac77167a721935b7305cfc4e4029b7f223c4f
parentDo not blindly call wsdisplay routines if no wsdisplay device is active (diff)
downloadwireguard-openbsd-ba45d2116dc8de2bc989ee7e01286c86ee130f88.tar.xz
wireguard-openbsd-ba45d2116dc8de2bc989ee7e01286c86ee130f88.zip
Add a check for negative values in struct timeval after the timersub().
Just treat it like a zero value. Also check for errno != EINTR when select() returns -1.
-rw-r--r--usr.sbin/cron/cron.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/usr.sbin/cron/cron.c b/usr.sbin/cron/cron.c
index d7a9febf5bb..f029193ce56 100644
--- a/usr.sbin/cron/cron.c
+++ b/usr.sbin/cron/cron.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cron.c,v 1.20 2002/05/09 21:22:01 millert Exp $ */
+/* $OpenBSD: cron.c,v 1.21 2002/05/20 23:33:31 millert Exp $ */
/* Copyright 1988,1990,1993,1994 by Paul Vixie
* All rights reserved
*/
@@ -21,7 +21,7 @@
*/
#if !defined(lint) && !defined(LINT)
-static char rcsid[] = "$OpenBSD: cron.c,v 1.20 2002/05/09 21:22:01 millert Exp $";
+static char rcsid[] = "$OpenBSD: cron.c,v 1.21 2002/05/20 23:33:31 millert Exp $";
#endif
#define MAIN_PROGRAM
@@ -362,13 +362,15 @@ cron_sleep(int target) {
sizeof(fd_mask));
}
- while (timerisset(&tv) && tv.tv_sec < 65) {
+ while ((tv.tv_sec > 0 || tv.tv_usec > 0) && tv.tv_sec < 65) {
if (fdsr)
FD_SET(cronSock, fdsr);
/* Sleep until we time out, get a crontab poke, or signal. */
nfds = select(cronSock + 1, fdsr, NULL, NULL, &tv);
if (nfds == 0)
break; /* timer expired */
+ if (nfds == -1 && errno != EINTR)
+ break; /* an error occurred */
if (nfds > 0) {
Debug(DSCH, ("[%ld] Got a poke on the socket\n",
(long)getpid()))