Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

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

1) Reimplement (differently) unlimited line length restricted in prev.
commit.

2) Honor missing the very last \n (if absent) on output.

Remove vestiges of old %-format which prevents build on amd64

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

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

2) Speedup input processing a bit in complex cases like skipping fields,
chars or ignore case.

3) Enforce the implied LINE_MAX limit (from POSIX definition of "text file"
and POSIX uniq(1) description).

Sync getline() with comm(1):

- 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)

Fix truncation of lines at LINE_MAX characters by dynamically
extending line buffers.

PR: bin/76578

Fix typo.

o) Correct for missing whitespace.
o) We don't need to check if ifp == stdin to give the filename, since we already
know that ifn will be "stdin" if it is.

Fix confusing misindentation of a closing-brace. (It goes with the switch, not
with the while.)

Remove a bogus check that caused empty lines not to be counted when the
-c option was given.

Noticed by: sf

Add support for multibyte characters.

ANSIify function definitions.
Add some constness to avoid some warnings.
Remove use register keyword.
Deal with missing/unneeded extern/prototypes.
Some minor type changes/casts to avoid warnings.

Reviewed by: md5

Use err instead of errx when malloc fails. "malloc" is not a helpful
error message.

Skip fields in the manner required by POSIX, and the way V7 did it.

MFC after: 1 week

Newline characters should not participate in line comparisons. Only apparent
when -s is used or the last line of the file is missing a newline.
Noticed by the textutils test suite.

MFC after: 1 week

Back out rev 1.19 because

1) It breaks uniq for real life languages when "substitute" directive used in
the collating table.
2) It breaks uniq usage in tool chain with other localized utilities which
use collate.
3) To follow LC_COLLATE it is directly allowed for uniq
by POSIX P1003.1 Draft7 (7.3.2). It means that rev 1.19 gains no additional
POSIX conformance.

Compare lines with strcmp(), not strcoll(). We are interested only in
equality, not ordering.

Sync usage() with manual page synopsis.

Accept an input file name of "-" to mean standard input, as required by
P1003.2.

Fields should be separated by <blank>s, not <space>s according to P1003.2.

Don't bother trying to handle "-" arguments ourselves, getopt(3) already
does this for us.

Use LC_ALL to pick collate

Noticed by: tjr

remove __P

Warns cleanups. Add FreeBSD ID to Makefile.

fix fatal typo

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

Use strcoll to provide the same results as sort and comm
Use LINE_MAX for max line size (as comm does)

$Id$ -> $FreeBSD$

Localize it

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) instead of local redefinition.

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