Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Make ktrace(1) build cleanly at WARNS level 6 by completely rethinking the
way in which it handles the -C, -c, -g and -p options.

MFC after: 3 weeks

Remove duplicated header files

Teach kdump to understand sv_flags records in the trace files.

MFC after: 1 Month.

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

Spell -t option's argument by name.

Fix usage string.

Allow the -c -f file options to actually execute.

When opening a trace file, open O_NONBLOCK so that ktrace doesn't stall
if the target is a fifo. After opening a trace file, check that it is a
regular file, and if not, return an error.

MFC after: 3 days
Reported by: kris
PR: 94278

Do not start err(3) strings with uppercase nor dot terminate them.
Standard sccsid[] area according to style(9).

Consistently use FBSDID

Warnings fix; ANSIfy, constify, mark unused function parameter(s).

1) Clean up vendor and ID strings.
2) include stdlib.h for atoi.
3) staticise and constify.
4) add some missing prototypes.
5) add some parens to keep gcc happy.

remove __P

Sync manpage and usage. Also fix bug that would always interpret a -c as a
process clear.

PR: bin/15456
MFC after: 2 weeks

getopt and friends are declared in <unistd.h>
getopt returns -1 not EOF.

Don't call err() with no format string.

$Id$ -> $FreeBSD$

Cosmetic in usage string.

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

Fix a security problem where the ktrace.out file could have been written
over a file owned by someone else.

Pointed out by: wosch
Reviewed by: sef, imp, proff@suburbia.net, bde

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

The userland change to the utrace(2) call.

Do always create ktrace.out with mode 0600, to prevent it from
accidentally compromising information confidential to the user running
ktrace.

Merged in 4.4Lite2 versions, added $Id$'s. The ktrace changes should
fix the garbage error messages printed out under certain circumstances.

Remove trailing whitespace.

Reviewed by:
Submitted by:
Put in a signal handler to catch the SIGSYS signal that indicates that
ktrace was not built into the kernel and prevent ktrace to core dump
somewhere.

This commit was generated by cvs2svn to compensate for changes in r1590,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Usr.bin Sources