src/usr.bin/systat/ip6.c, branch releng/11.3

Revert r330897:

2018-03-29T02:50:57Z

This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re)

Partial merge of the SPDX changes

2018-03-14T03:19:51Z

These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg

Make systat(1) accept fractional number of seconds.

2012-09-17T13:36:47Z

Make old alarm(3)-based code use select(2). MFC after: 2 weeks

Remove the advertising clause from UCB copyrighted files in usr.bin. This

2010-12-11T08:32:16Z

is in accordance with the information provided at ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change Also add $FreeBSD$ to a few files to keep svn happy. Discussed with: imp, rwatson

ANSIfy and remove register.

2008-01-16T19:27:43Z

Resulting binary verified with strip(1)+md5(1).

Remove trailing whitespace.

2006-04-30T04:47:23Z

Submitted by: Se=E1n Farley PR: bin/81874

Show the load average in the tcp display (it was already shown, perhaps

2006-04-30T04:26:46Z

not very usefully, in all other displays). This was the original point of the PR. Move the load average up by 2 so that it starts in row 0 for all windows (2 lines above it were wasted for all other windows except vmstat). Move everything below it up by 2 or 3 (3 for icmp and icmp6 which had an extra blank line due from not compensating for the foot-shooting in note (3); only ip and ip6 compensated). Reduce the magic numbers related to this. Notes by the submitter: %%% 1. All the subwin() calls are identical using #define MAINWIN_ROW 3 (systat.h). 2. The load average is at the top of the window. 3. Each display starts on the fourth line. I made changes to those displays that shifted the start line (i.e., icmp). This entailed a lot of changes within the comments at the top of those displays. 4. For ip6, I shifted the "Input next-header histogram" column down one row to separate it from "IPv6 Output". I raised "bad scope packets" and "address selection failed" up one row to stay with "IPv6 Input" (valid?). They were down one row to probably line up at the bottom, but I think they should stick with their fellow items in a column. 5. I condensed ifstat a bit. It had a lot of empty rows. %%% Submitted by: Se=E1n Farley PR: bin/81874

Add ip6 and icmp6 displays to systat.

2003-08-01T20:28:20Z

MFC after: 2 weeks