sharpd: Update 'sharp watch import` to allow prefix

Instead of defaulting the import-check to a /32
allow the tester to specify any prefix that they want
when doing an import-check.

Test:

donna.cumulusnetworks.com# sharp watch import
  A.B.C.D/M   The v4 prefix for import check to watch
  X:X::X:X/M  The v6 prefix to signal for watching
donna.cumulusnetworks.com# sharp watch import 4.5.6.0/24
donna.cumulusnetworks.com# show ip import-check
4.5.6.0
 resolved via kernel
 via 10.50.11.1, enp0s3
 Client list: sharp(fd 21)
donna.cumulusnetworks.com# sharp watch import 4:5:6::0/64
donna.cumulusnetworks.com# show ipv6 import-check
4:5:6::
 resolved via kernel
 fe80::cad7:19ff:fe0a:fdfd, via enp0s3
 fe80::ce37:abff:fe4f:a601, via enp0s3
 Client list: sharp(fd 21)
donna.cumulusnetworks.com# sharp watch nexthop
  A.B.C.D   The v4 address to signal for watching
  X:X::X:X  The v6 nexthop to signal for watching
donna.cumulusnetworks.com# sharp watch nexthop 4.5.6.7
donna.cumulusnetworks.com# sharp watch nexthop 4:5::6:7
donna.cumulusnetworks.com# show ip nht
4.5.6.7
 unresolved
 Client list: sharp(fd 21)
donna.cumulusnetworks.com# show ipv6 nht
4:5::6:7
 unresolved
 Client list: sharp(fd 21)

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

0 files changed, 0 insertions, 0 deletions