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authorDarren Tucker <dtucker@cvs.openbsd.org>2005-03-13 10:06:28 +0000
committerDarren Tucker <dtucker@cvs.openbsd.org>2005-03-13 10:06:28 +0000
commit63a11a104455a315f1585089c9a4afe760b142c4 (patch)
treef59c87eb691196b48767786d5fdc8ed1c7cc2265 /usr.sbin
parentedb2753a3529fd780991f576bb43e40999cf4bdd (diff)
Fixes in ntpd_settime (ie ntpd -s):
- Handle errors from syscalls better - Prevent curtime.tv_usec from being negative for negative offsets. - Don't claim to have done settimeofday if it fails. ok henning@
Diffstat (limited to 'usr.sbin')
-rw-r--r--usr.sbin/ntpd/ntpd.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/usr.sbin/ntpd/ntpd.c b/usr.sbin/ntpd/ntpd.c
index 02f63b067bb..2498d06279f 100644
--- a/usr.sbin/ntpd/ntpd.c
+++ b/usr.sbin/ntpd/ntpd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ntpd.c,v 1.31 2005/03/09 20:31:11 henning Exp $ */
+/* $OpenBSD: ntpd.c,v 1.32 2005/03/13 10:06:27 dtucker Exp $ */
/*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -332,17 +332,19 @@ ntpd_settime(double d)
if (d < SETTIME_MIN_OFFSET && d > -SETTIME_MIN_OFFSET)
return;
- d_to_tv(d, &tv);
- if (gettimeofday(&curtime, NULL) == -1)
+ if (gettimeofday(&curtime, NULL) == -1) {
log_warn("gettimeofday");
- curtime.tv_sec += tv.tv_sec;
- curtime.tv_usec += tv.tv_usec;
- if (curtime.tv_usec > 1000000) {
- curtime.tv_sec++;
- curtime.tv_usec -= 1000000;
+ return;
}
- if (settimeofday(&curtime, NULL) == -1)
+ d_to_tv(d, &tv);
+ curtime.tv_usec += tv.tv_usec + 1000000;
+ curtime.tv_sec += tv.tv_sec - 1 + (curtime.tv_usec / 1000000);
+ curtime.tv_usec %= 1000000;
+
+ if (settimeofday(&curtime, NULL) == -1) {
log_warn("settimeofday");
+ return;
+ }
tval = curtime.tv_sec;
strftime(buf, sizeof(buf), "%a %b %e %H:%M:%S %Z %Y",
localtime(&tval));