Alan Somers b17fb99228 ping: Verify whether a datagram timestamp was actually received. ... ping(8) uses SO_TIMESTAMP, which attaches a timestamp to each IP datagram at the time it's received by the kernel. Except that occasionally it doesn't. Add a check to see whether such a timestamp was actually set before trying to read it. This fixes segfaults that can happen when the kernel doesn't attach a timestamp. The bug has always existed, but prior to r351461 it manifested as an implausible round-trip-time, not a segfault. Reported by: pho MFC after: 3 days MFC-With: 351461		2019-09-11 18:54:45 +00:00
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tests	ping: By default, don't reverse lookup IP addresses	2019-08-22 18:57:24 +00:00
Makefile	ping: raise WARNS level to 6	2019-08-27 15:34:37 +00:00
Makefile.depend	DIRDEPS_BUILD: Update dependencies.	2017-10-31 00:07:04 +00:00
ping.8	ping: By default, don't reverse lookup IP addresses	2019-08-22 18:57:24 +00:00
ping.c	ping: Verify whether a datagram timestamp was actually received.	2019-09-11 18:54:45 +00:00
utils.c	ping: Move in_cksum() to a separate source file	2019-08-17 15:25:01 +00:00
utils.h	ping: fix include guard symbol name to reflect the header file name	2019-08-23 15:24:18 +00:00