Commit Graph

21 Commits

Author SHA1 Message Date
Bruce Evans
40fc4ee2de Don't use mmap() for non-regular files, since st_size is only meaningful
for regular files.  This fixes recent breakage of cp'ing from /dev/zero.
/dev/zero doesn't support mmap(), but the device driver mmap routines are
not called for mapping 0 bytes, so the error was not detected.  mmap()
can't even be used for cp'ing special files that support mmap(), since
there is general way to determine the file size.
1998-11-18 11:47:45 +00:00
Peter Wemm
4faaa03777 Don't attempt to change owner/mode/flags that don't need to changed.
This should calm down attempts to `cp -p' to a nfs mount or some other
filesystem that doesn't accept flags or all combinations of flags.
It will warn if it fails to change flags though.
1998-06-10 06:29:23 +00:00
Warner Losh
e00e592a7a Make sure we pass the length - 1 to readlink, since it adds its own
NUL at the end of the path.
Inspired by: OpenBSD's changes in this area by theo de raadt
1998-06-09 03:38:43 +00:00
Philippe Charnier
c194af34bd Restore Lite-2 sccsid. 1998-05-13 07:25:17 +00:00
Philippe Charnier
cbf6f7d358 Correct use of .Nm and other cosmetics. Add rcsid. Remove unused #inc. 1998-05-06 06:51:42 +00:00
Bruce Evans
bf770561ee Fixed syntax error in normally-unconfigured code in previous commit. 1998-01-17 13:39:29 +00:00
Bruce Evans
2f7579bd8d Fixed handling of short writes. Previously, we stopped copying and
printed a bogus warning with a stale errno if write() returns a short
count.  Now we continue copying.  We still print a bogus warning if
write() returns an "impossible" short count of 0.
1998-01-16 07:37:05 +00:00
Wolfram Schneider
ab215c6703 cp(1) is too silent if used with the option -i. It should
print which input cp(1) expect (y/n) and print a warning if the
file was not overwritten.
1997-10-03 18:11:14 +00:00
Peter Wemm
b97fa2ef50 Revert $FreeBSD$ to $Id$ 1997-02-22 14:13:04 +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
Steve Price
890acb9554 Merge Lite2 mods and -Wall cleaning. 1996-12-14 05:51:58 +00:00
Wolfram Schneider
6add522f93 Option -f implemented (remove + create)
option -f and -i are exclusive
respond `Y' is equal to `y'
fix usage string
remove isatty(3) check

Reviewed by:	pst
1996-03-08 06:58:08 +00:00
Paul Traina
ee4f505e5e Don't initialize udata, remove bogus case, fix usage string 1996-02-19 05:56:34 +00:00
Wolfram Schneider
d7e0e5ca0f delete my last commit
Submitted by:	pst, ache
1996-02-19 00:44:19 +00:00
Wolfram Schneider
d6ea04ccf4 Option -f implemented (remove + create)
option -f and -i are exclusive
all flag variables initialized with zero
respond `Y' is equal to `y'
update usage string
1996-02-18 18:48:26 +00:00
Bruce Evans
eca0f5097e Preserve sticky bit for cp -pR'. It was already preserved for cp -R'.
This also fixes loss of the sticky bit for `mv' across file systems.
1995-10-03 12:55:01 +00:00
Bruce Evans
6a834fc3f1 Don't unlink the target file if the copy failed. This behaviour isn't
documented and is incompatible with gnu cp.  It has very few good effects
(it recovers some disk space) and many bad ones:
- special files are unlinked after certain errors.
- the data may not be recoverable if the source is a special file or fifo.
- unlinking destroys the target attributes as well as the target data.
- unlinking doesn't actually remove the target data if the target is multiply
  linked.
1995-06-14 05:41:27 +00:00
Rodney W. Grimes
2162b2d226 Remove trailing whitespace.
Reviewed by:	phk
1995-05-30 00:07:29 +00:00
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00