Add an '-a' option which is identical to specifying '-RpP' for
compatibility with other implementations.

MFC after: 1 month

o Style(9).

Submitted by: bde

o Avoid division by zero.
o Place error checking code near to the syscall.

Submitted by: bde

o Hold copied bytes counter in off_t. This prevents statistics
displayed by SIGINFO handler from overflow.

PR: bin/104039
Submitted by: Geoffrey Giesemann
MFC after: 2 weeks

- Fix options order.
- Touch manpage's document date.

Remove a stray -a option that probably sneaked in from julian's
attempt to enter append mode twice in vi(1). :-)

Add an option to allow copying of a hierarchy while linking he regular files.
Bikeshedded to death on: hackers
Submitted by:andersonatcenttech.com
MFC in: 1 month

Attempt to complete the userspace integration of POSIX.1e extended ACLs.
This includes adding support for ACLs into cp(1) and mv(1) userspace
utilities.

For mv(1), if _PC_ACL_EXTENDED is in effect f

Attempt to complete the userspace integration of POSIX.1e extended ACLs.
This includes adding support for ACLs into cp(1) and mv(1) userspace
utilities.

For mv(1), if _PC_ACL_EXTENDED is in effect for the source AND destination
operands, the destination file's ACLs shall reflect the source.

For cp(1), if _PC_ACL_EXTENDED is in effect for both source and destination
operands, and -p has been specified, the ACLs from the source shall be
preserved on the destination.

MFC after: 1 month

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Sync program's usage() with manpage's SYNOPSIS.

Plug file descriptor leak in implementation of -n option.

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Don't mmap(2) and munmap(2) zero-length files.

Submitted by: Wiktor Niesiobedzki <bsd@w.evip.pl>

support saving both user/group and permissions on symlinks (from PR)

also fix a slight bogon that assumed an fd of 0 was not valid. Changed
it to be -1.

PR: bin/25017
Submitted by: Martin Kammerh

support saving both user/group and permissions on symlinks (from PR)

also fix a slight bogon that assumed an fd of 0 was not valid. Changed
it to be -1.

PR: bin/25017
Submitted by: Martin Kammerhofer

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Add a SIGINFO handler.

Constify and staticify for lint.

Fix some easy WARNS.

Add the -n option, which automatically answers "no" to the overwrite question.

PR: 7828
Suggested by: Daniel O'Connor <doconnor@gsoft.com.au>
Approved by: sheldonh (mentor)
MFC after: 2 weeks

Fix some low-hanging lint-fruit: endianness and staticness warnings.

Consistently use __FBSDID

Fix warnings inspired by lint, a commercial lint and WARNS=4.

Modernization effort for bin/c*:

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (

Modernization effort for bin/c*:

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
they already are.

Approved by: arch@, new style(9)

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Typo in warning message (chown should be chmod).

Add more headers that are required with -fno-builtin (stdlib and strings)

Removed the broken code which claimed to lose the set[ug]id bits in
the !(pflag && setfile()) case for regular files unless the copy is
owned by the same user and group. These bits have already been

Removed the broken code which claimed to lose the set[ug]id bits in
the !(pflag && setfile()) case for regular files unless the copy is
owned by the same user and group. These bits have already been lost
(or never gained) in the correct way. The code didn't actually lose
the bits; it depended on them being lost already (apparently in all
cases) and attempted to gain them as necessary, but it often gained
them (and sometimes collateral bits) when wrong:
- pflag && setfile() == 0 case (i.e., for a successful cp -p):
setfile() copies all the attributes as correctly as possible (as
specified by POSIX), and we sometimes messed up the up the mode by
setting it again. Also, if the file is immutable, then setting the
mode again gave spurious errors (PR 20646).
- !pflag case. If the target is created, POSIX requires it to not
have the set[ug]id bits, but we sometimes copied them from the source.
If the target already exists, POSIX requires its mode to be unchanged,
but we sometimes copied the whole mode from the source.

PR: 20646
MFC after: 4 weeks

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Migrate from using MAXPATHLEN to MAX_PATH. Use strlcpy to copy the
strings.