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

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

Mark global functions and/or variables in comm(1) static where possible.

This allows compilers and static analyzers to more thorough analysis.

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

Add SIZE_MAX overflow check

Rewrite input processing to not exit with error on the first EILSEQ found
in the input data but fallback to "binary comparison" instead.

POSIX says: "The input files shall be text files", nothing more,
so the text file with illegal sequence is valid input.
BTW, GNU sort does not fails on EILSEQ too.

- Prevent overflowing of the buffer length variable in getline() by
limiting its maximum value.
- Exit if reallocf(3) fails in getline(). Failure was silently
considered as end-of-file.

Reviewed by: ghelmer
Approved by: trasz (mentor)

Don't read the newline character to line buffer because lines are passed
to wcscoll(3). Newline characters could cause incorrect results when
comparing lines.

Also, if an input line didn't contain a newline character, it was
omitted from the output. According to my interpretation, SUSv3 requires
that the newline is always printed.

Add regression tests for the cases. [1]

PR: bin/140976
Submitted by: D'Arcy Cain (original version) [1]
Approved by: trasz (mentor)

Similar to changes previously made to src/usr.bin/uniq/uniq.c,
fix truncation of lines at LINE_MAX characters by dynamically
extending line buffers.

Add support for multibyte characters.

ANSIify function definitions to avoid a warning.
Minor constness changes.

No need to handle '-' explicitly in getopt() loop.

Obtained from: NetBSD

remove __P

Use LC_ALL to pick LC_COLLATE too (for strcoll())

Style improvements recommended by Bruce as a follow up to some
of the recent WARNS commits. The idea is:

1) FreeBSD id tags should follow vendor tags.
2) Vendor tags should not be compiled (though copyrights probably should).
3) There should be no blank line between including cdefs and __FBSDIF.

Use __FBSDID().

WARNS=2 fixup.

Include missing header files which define functions for which gcc has
builtins (e.g., exit, strcmp).

Rework diagnostics text
Remove unused #include

fix the same typo as in uniq

toupper -> tolower to match changed behaviour of new grep case fold

Cosmetique: use standard prototypes scheme
Back out prev change: toupper is more compatible with sort -f

toupper->tolower to match what strcasecmp does

Localize it

PR: 11221
Submitted by: Grigoriy Strokin <grg@philol.msu.ru>

$Id$ -> $FreeBSD$

Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]).

Teach comm(1) and uniq(1) about an option for case-insensitive work.

PR: 3042
Submitted by: graphix@iastate.edu (Kent Vander Velden)

Use err(3). Add DIAGNOSTIC section name in man page.

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

This commit was generated by cvs2svn to compensate for changes in r23690,
which included commits to RCS files with non-trunk default branches.

Import some parts of CSRG 4.4BSD-Lite2 usr.bin sources to fix tree build.

BSD 4.4 Lite Usr.bin Sources