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70 Commits

Author SHA1 Message Date
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