Xin LI
821df508e8
Revert most part of 200420 as requested, as more review and polish is
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needed.
2009-12-13 03:14:06 +00:00
Xin LI
6f2d322192
Remove unneeded header includes from usr.bin/ except contributed code.
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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.
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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
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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/
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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
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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
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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
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long long and quad_t are not the same.
2001-12-03 20:56:16 +00:00
Mark Murray
6af414cb2e
Turn on WARNS=2.
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Use __FBSDID().
2001-12-02 23:29:26 +00:00
David Malone
c5250ed112
Make filenames const to avoid a few warnings.
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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
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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
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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
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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)
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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
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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
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or cmp crashing in specific cases.
1999-07-29 23:26:22 +00:00
Warner Losh
96846ff646
More egcs warning fixes:
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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.
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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.
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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
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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:
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- 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 $FreeBSD$
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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
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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
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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
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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
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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