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Fix SIGSEGV when set_short_delay() is called when ifi->ifi_ra_timer is NULL.

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This can happen in a short period when a prefix is changed by a rtmsg and a
new interface arrives.
This commit is contained in:
Hiroki Sato 2013-03-06 04:58:48 +00:00
parent 067041766e
commit 833d853cbf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=247863
1 changed files with 2 additions and 0 deletions
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2
usr.sbin/rtadvd/rtadvd.c
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@ -1008,6 +1008,8 @@ set_short_delay(struct ifinfo *ifi)
long delay; /* must not be greater than 1000000 */
struct timeval interval, now, min_delay, tm_tmp, *rest;
if (ifi->ifi_ra_timer == NULL)
return;
/*
* Compute a random delay. If the computed value
* corresponds to a time later than the time the next