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49 Commits

Author SHA1 Message Date
Enji Cooper
0306a0a804 Integrate usr.bin/cmp/tests from NetBSD into atf/kyua 
In collaboration with: sjg
Sponsored by: EMC / Isilon Storage Division
 2014-10-09 00:50:33 +00:00
Eitan Adler
7dfb7dad8b Bump .Dd for recent change 2013-11-18 23:11:42 +00:00
Eitan Adler
c4dfa475ca Indicate which options are extensions to POSIX. 
Inspired by:	DragonFlyBSD
 2013-11-18 22:53:24 +00:00
Ed Schouten
8ef8574d1a Add missing static keywords to cmp(1) 2011-11-06 08:14:16 +00:00
Xin LI
71024a974d Eliminate unneeded headers. 2011-06-21 20:44:06 +00:00
Joel Dahl
da52b4caaf 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
 2010-12-11 08:32:16 +00:00
Xin LI
821df508e8 Revert most part of 200420 as requested, as more review and polish is 
needed.
 2009-12-13 03:14:06 +00:00
Xin LI
6f2d322192 Remove unneeded header includes from usr.bin/ except contributed code. 
Tested with:	make universe
 2009-12-11 23:35:38 +00:00
Philippe Charnier
dd99983988 add __unused to succeed at WARNS=6 2008-07-10 13:26:46 +00:00
Ruslan Ermilov
fe0e364354 Refine markup and add the EXIT STATUS section where appropriate. 2006-12-19 10:34:14 +00:00
Ruslan Ermilov
4e9e907d63 -mdoc sweep. 2005-11-18 10:36:29 +00:00
Brian Somers
e1bfde1b04 Add a -h option to tell cmp not to follow symbolic links. 
MFC after:	3 weeks
Sponsored by:	Sophos/ActiveState
 2005-08-23 13:13:13 +00:00
Murray Stokely
1b8d837cd0 phk added the -x option in May 2000, but only for regular files; for 
special files it was treated like -l.  This commit adds the -x option
in for special files as well.

PR:		bin/46249
Submitted by:	Colin Percival <cperciva@sfu.ca>
 2003-06-19 07:24:26 +00:00
David Schultz
d48905120d The cmp utility has the questionable feature of using mmap when 
comparing regular files.  Add a SIGSEGV handler to make its
behavior less surprising when a read error occurs.  The handler
does not attempt to distinguish errors from file truncation, but
anyone actively modifying a file while trying to compare it
shouldn't even expect something sane to happen.

PR:		45391
Reviewed by:	mike (mentor)
 2003-02-26 06:44:46 +00:00
Jens Schweikhardt
d64ada501a Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 
Add FreeBSD Id tag where missing.
 2002-12-30 21:18:15 +00:00
David Malone
f2e8e0dad7 ANSIify function definitions to avoid a warning. 2002-07-28 15:13:17 +00:00
Tim J. Robbins
6e473901a3 No need to check for "-" explicitly in getopt() loop. 2002-06-07 02:35:21 +00:00
Tim J. Robbins
c87180589e Exit >1 when an error occurs, regardless of whether -s is specified (SUSv3) 2002-06-07 02:30:56 +00:00
Warner Losh
f1bb2cd2aa remove __P 2002-03-22 01:22:50 +00:00
Mark Murray
91bd71d206 Remove leaf node WARNS?=2 (that mainly I added). This should 
help the GCC3 transition and CURRENT in general.
 2002-02-08 22:31:43 +00:00
David Malone
9f5b04e925 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.
 2001-12-10 21:13:08 +00:00
David Malone
5748d9ba6f Cast off_t to long long before printing. Use %ll instead of %q incase 
long long and quad_t are not the same.
 2001-12-03 20:56:16 +00:00
Mark Murray
6af414cb2e Turn on WARNS=2. 
Use __FBSDID().
 2001-12-02 23:29:26 +00:00
David Malone
c5250ed112 Make filenames const to avoid a few warnings. 
Add FreeBSD tags.

Reviewed by:	cmp
 2001-11-05 20:33:40 +00:00
David Malone
ebf362130e Don't use gcc -Wall flag. Add FreeBSD: line. 2001-11-05 20:27:17 +00:00
David Malone
60b49f05fa Make cmp work by mmapping chunks of a file, rather than the whole 
file at one time.

PR:		24732
Submitted by:	Andrew L. Neporada <andr@dgap.mipt.ru>
MFC after:	2 weeks
 2001-11-04 21:31:16 +00:00
Dima Dorfman
f247324df7 Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00
Ruslan Ermilov
8fe908ef0c mdoc(7) police: use the new features of the Nm macro. 2000-11-20 19:21:22 +00:00
Sheldon Hearn
1727cb4cae Fix a bug introduced in rev 1.8, where special files ended up 
being treated like regular files because of missing braces.

PR:		20143
 2000-07-25 13:01:34 +00:00
Brian Somers
3e6902efc8 Add the -z flag to check file sizes first 
Correct the cmp.1 usage message
Correct the -l/-s incompatibility message

Submitted by: Mark Knight <markk@knigma.org>
 2000-07-14 16:54:59 +00:00
Brian Feldman
84ad3d8fc4 Make cmp -s work properly if skip values are given. Also, exit(1) 
is now exit(DIFF_EXIT).

PR:		18597
Submitted by:	Anatoly Vorobey <mellon@pobox.com>
Committed at:	Usenix terminal room
 2000-06-20 20:28:40 +00:00
Poul-Henning Kamp
78cb0ab485 Oops, byte offset was as off_t. 2000-05-15 08:43:25 +00:00
Poul-Henning Kamp
e03983a32c Let cmp(1) grow in -x option to print differences in contemporarry hex 
format rather than the mixed decimal/octal format of -l.
 2000-05-15 08:30:43 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Brian Feldman
ac02226555 Fix improper mmap length paramater which can result in improper behavior 
or cmp crashing in specific cases.
 1999-07-29 23:26:22 +00:00
Warner Losh
96846ff646 More egcs warning fixes: 
o main returns int not void
	o use return 0 at end of main when needed
	o use braces to avoid potentially ambiguous else
	o don't default to type int
	o #ifdef 0 -> #if 0

Reviewed by: obrien and chuckr
 1999-04-25 22:37:58 +00:00
Archie Cobbs
fa146c5335 Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]). 1998-12-06 22:58:23 +00:00
Steve Price
423bac3e47 "EOF of file..." is written to stderr and not stdout. 
PR:		6756
 1998-05-26 00:39:12 +00:00
Jonathan Lemon
1e17b9450c Permit hex/octal parameters to cmp, to match what the manual page says. 
PR:		3850, 3855
 1997-08-19 14:34:04 +00:00
Philippe Charnier
f771f05273 Correct usage string. Program name converted to bold in man page. 1997-06-26 11:22:12 +00:00
Warner Losh
1c8af87873 compare return value from getopt against -1 rather than EOF, per the final 
posix standard on the topic.
 1997-03-29 04:34:07 +00:00
Peter Wemm
c115df18cd Revert $FreeBSD$ to $Id$ 1997-02-22 19:58:13 +00:00
Alexander Langer
8abdc2eb40 Sweep through the tree fixing mmap() usage: 
- Use MAP_FAILED instead of the constant -1 to indicate
    failure (required by POSIX).
  - Removed flag arguments of '0' (required by POSIX).
  - Fixed code which expected an error return of 0.
  - Fixed code which thought any address with the high bit set
    was an error.
  - Check for failure where no checks were present.

Discussed with:	bde
 1997-01-16 21:58:40 +00:00
Jordan K. Hubbard
1130b656e5 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.
 1997-01-14 07:20:47 +00:00
Joerg Wunsch
c28065c606 Our mmap(2) has a limitation where the `offset' parameter must be 
page-aligned.  cmp(1) should know about this flaw, and work around it.

While i was at it, fixed an uninitialized variable as reported by
-Wall.
 1997-01-08 12:00:55 +00:00
John Dyson
2ae09ad871 When mmap is used, do an madvise(MADV_SEQUENTIAL) to make things 
go much more quickly when file input is really done.  Of course, the
fully cached case will make no difference.
 1996-12-11 05:20:20 +00:00
Wolfram Schneider
b8923d4cc0 [HISTORY] command appeared in Version 1 AT&T UNIX 
Obtained from: A Quarter Century of UNIX, Peter H. Salus, page 41
 1996-08-29 18:06:19 +00:00
Jordan K. Hubbard
e526625999 I don't like what they did to cmp(1) in 4.4 Lite; now it whines all 
the time, even with -s.  Make cmp SHUT UP about non-existant files
when run with -s.
Submitted by:	jkh
 1994-08-20 11:14:07 +00:00
Rodney W. Grimes
9b50d90275 BSD 4.4 Lite Usr.bin Sources 1994-05-27 12:33:43 +00:00