MFC r335921:

Allow jail names (not just IDs) to be specified for: cpuset(1), ipfw(8),
sockstat(1), ugidfw(8)
These are the last of the jail-aware userland utilities that didn't work
with names.

PR: 229266
Differential Revision: D16047

MFC r287182:
Add SCTP support.

MFC r285630:
Add a -s option which adds a column listing the connection state if
applicable (currently only for TCP).

This is work from des@ and MFCing was discussed with him.

MFC r284636:

- Add SOCK_SEQPACKET support in UNIX-domain socket.
- Display zoneid using % notation in an IPv6 address.
- Use nitems().
- Use sstos{in,in6,un} macros to simplify casts.
- style(9).

Approved by: re (gjb)

MFC r284351:
Simplify printaddr(). No functional change.

MFC r284352:
Allow more than one socket entry for a file descriptor. This is needed
for supporting 1-to-many style SCTP sockets. For other sochets, there
is no functional change.

MFC r284353:
Allow more than one local or remote address per socket. This is needed to
support SCTP (and MPTCP in the future). No functional change for existing
protocols.

MFC r284354:
Add support for SCTP.

MFC r284355:
When using -L the code skips a socket if the local or foreign
address is loopback. So it is shown if both are not loopback.
The man page says that it is shown if the local or foreign
address is not loopback. Change the man page to reflect the
code.

MFC r281202:

The code says "or", not "either or". So fix the documentation.

MFC r284636:

- Add SOCK_SEQPACKET support in UNIX-domain socket.
- Display zoneid using % notation in an IPv6 address.
- Use nitems().
- Use sstos{in,in6,un} macros to simplify casts.
- style(9).

Approved by: re (gjb)

MFC r284351:
Simplify printaddr(). No functional change.

MFC r284352:
Allow more than one socket entry for a file descriptor. This is needed
for supporting 1-to-many style SCTP sockets. For other sochets, there
is no functional change.

MFC r284353:
Allow more than one local or remote address per socket. This is needed to
support SCTP (and MPTCP in the future). No functional change for existing
protocols.

MFC r284354:
Add support for SCTP.

MFC r284355:
When using -L the code skips a socket if the local or foreign
address is loopback. So it is shown if both are not loopback.
The man page says that it is shown if the local or foreign
address is not loopback. Change the man page to reflect the
code.

MFC r281202:

The code says "or", not "either or". So fix the documentation.