As described in issue #295, the option combinations "-c N -u"
and "-c N -a" inadvertently have the same effect as "-c N -q".
Prevent this by first acting on -c, which includes disabling
either -a or -u, if -c is given, before acting on -a/-u.
Any Echo Response packet uses a different source address than
used for the target, because it is not allowed to use a multicast
address as source. This results in extra output in a specific
format on standard error.
This should work, because IPv6 requires multicast support, and
every IPv6 node is supposed to join the "all nodes" multicast
group, including the node the test runs on. It at least works
on my Ubuntu 20.04 LTS system.
* -f with non-existing file
* -f with input file containing comment and empty line
* -g with non-numeric address in "CIDR" format
* -g with one non-numeric address in start resp. end position
* -g with one IPv6 address in start resp. end position
The man page gives two examples combining -C and -q, but
these combinations are not yet tested. Add tests to help
ensure the documented examples continue to work.
The statistics printed every SECS seconds show the results
since the the last report, not since the beginning. Also,
every report starts with a timestamp.
* wrong number or kind of arguments fails and prints usage;
* an empty range silently pings nothing and fping returns 1;
* a too large range fails with an error message;
* a zero CIDR prefix length fails with an error message.
If CLOCKID != CLOCK_REALTIME, it probably will not have anything to do
with the UNIX epoch, so it could be smaller than 10 digits.
Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Erik Auerswald
deepkv
German Service Network
David Schweikert
Patrick Ladd
Steven Noonan
deepak0004