Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Do not emit size for non-regular files. There is nothing that
mtree(1) can do in this situation and would cause confusion.

MFC candidate.

Approved by: re (hrs)

Change all our own code to use st_*tim instead of st_*timespec.

Also remove some local patches to diff(1) which are now unneeded.

Write timestamps with exactly 9 digits after the period.
This ensures that the value written is both compatible with
older mtree versions (which expect the value after the period
to be an integer count of nanoseconds after the whole second)
and is a correct floating-point value.

Leave the parsing code unchanged so it will continue to read
older files.

Adds sha256 support. While it is a good idea to also add sha384 and
sha512, I did not do that since it is not entirely clear where "the one
true place" to hold their implementations is going to be. Sha256 is
different since mtree already links against libmd.

Make recommended procedure for integrity checking in the manpage
consistent.

Fix a bug with -f spec1 -f spec2 comparison, which prevented
test/tes03.sh from running successfully.

Reviewed by: phk, cperciva

Get rid of "lineno: 0" in error messages from create mode.

Add -w(arning) flag which makes failure to look up uid/gid
a nonfatal warning instead of an error.

collect all "extern bla" stuff in extern.h in order to get cross-file
type checking. No bugs found.

Do not emit comments when -n is specified.

Take advantage of the fact that we know the err(3) function does not
return to eliminate some else clauses and gain some "outdenting".

Fix bug in mtree(8)'s create mode where files or directories with had
names containing glob(3) expressions would appear verbatim in the
output.

If such an mtree file were used by mtree in update mode, wrong things
would happen.

Remove clause 3 in the copyrights (according to permission in src/COPYRIGHT)
Remove trailing whitespace.

Remove "register" keywords.
Use newspeak functions definitions.

Use __FBSDID over rcsid[]. Protect copyright[] where needed.

- Align the function prototype of the external `crc' function with
how `crc' is actually defined.
- Remove an unnecessary `extern' variable declaration.
Data type corrections:
- Define a variable which contains a file byte offset value as type
off_t as required by the `crc' function.
- Change the type of a variable carrying a CRC checksum from `u_long'
to `uint32_t'.
- Substitute the wrong `extern' variable declaration of `crc_total'
by putting a correct one in the shared header extern.h.
`crc_total' is defined as an `uint32_t', thus fixing
incorrect mtree checksums on big-endian LP64 machines.

Make the threatened fts(3) ABI fix. FTSENT now avoids the use of the struct
hack, thereby allowing future extensions to the structure (e.g., for extended
attributes) without rebreaking the ABI. FTSENT now contains a pointer to the
parent stream, which fts_compar() can then take advantage of, avoiding the
undefined behavior previously warned about. As a consequence of this change,
the prototype of the comparison function passed to fts_open() has changed
to reflect the required amount of constness for its use. All callers in the
tree are updated to use the correct prototype.

Comparison functions can now make use of the new parent pointer to access
the new stream-specific private data pointer, which is intended to assist
creation of reentrant library routines which use fts(3) internally.

Not objected to in spirit by: -arch

Get rid of %qd, and unbreak Alpha build.

fixup for WARNS=4.

de-__P()

Assume __STDC__, remove non-__STDC__ code.

Mark a static function as __printflike()

MFC After: 1 week

Make the output of mtree(8) more systematic and machine readable.

The new format is:

filename {changed,missing,extra}
$field expected $foo found $bar
...

Fix various bugs along the way:
Don't complain about directory sizes differing.
Correctly check flags.

Switch over to using the new fflagstostr and strtofflags library calls.

Give mtree the ability to exclude files and directories from its traversal.

PR: 16944

Historically file flags (schg, uschg, etc) have been converted from
string to u_long and back using two functions, flags_to_string and
string_to_flags, which co-existed with 'ls'. As time has progressed
more and more other tools have used these private functions to
manipulate the file flags.

Recently I moved these functions from /usr/src/bin/ls to libutil,
but after some discussion with bde it's been decided that they
really ought to go in libc.

There are two already existing libc functions for manipulating file
modes: setmode and getmode. In keeping with these flags_to_string
has been renamed getflags and string_to_flags to setflags.

The manual page could probably be improved upon ;)

Added support for file flags, mostly merged from the NetBSD version.
The way is now open to schg and sappnd key files and directories in
our tree. There are recommendations in bin/15229.

PR: bin/15229
Reviewed by: imp, brian

-Wall fixes.

Submitted by: nrahlstr

$Id$ -> $FreeBSD$

Add support for SHA-1 and RIPEMD160, now that libmd includes them. Make
all of the hashes (including MD5) conditionalized in case we want
to turn one of them off later.

Move to a uniform '\ooo' (VIS_OCTAL) encoding for special characters.
The previous commit broke mtree(8) when file names using certain 8-bit
characters ended up being encoded with '/', '*', and other shell
metacharacters.

PR: bin/9538
Submitted by: "Eugene M. Kim" <astralblue@usa.net>
Reviewed by: jkoshy
Bug-missed-last-time-by: jkoshy

Teach mtree(8) to handle whitespace in filenames. Uses strvis(3).

PR: bin/3246
Submitted by: Eugene M. Kim <astralblue@usa.net>
Reviewed by: jkoshy, wollman

Fixed printf format errors.

Create a new flag, "nochange", which will specify that a directory is
to be created if it's missing, otherwise completely ignore it's modes and
owners. Primary intended targets: /usr/src and /usr/obj.

Adjust the 'not created: File exists' message to mention that it's a
directory that's the problem, otherwise it doesn't make sense.

I had created chown-style -L and -P flag to control logical/physical mode
(ie: whether symlinks were followed), but the nochange flag is enough to
get the blasted thing out of my hair so I took them back out.

Use err(3) instead of local redefinition.

ts_sec -> tv_sec
ts_nsec -> tv_nsec

Pointed out by: bde

Report `fts_errno' instead of `errno' when the former applies.

Fix to match new MD5 api, faster.

Remove trailing whitespace.

mtree * MD5 = better security

Idea from: Dr. John T. Wroclawski

My optimization to eliminate /set records was a little too aggressive, it
optimized away the first one :-(.

1. Remove commented out CFLAGS+=-DDEBUG from Makefile

2. Clean up code so it compiles -Wall (except for sccsid's and copyright).
This included fixing several printf formats that where not correct,
and changing the data types of a few things.

3. Implement new option -i that produces indented mtree output files.

4. Implement new option -n that turns off directory comments.

5. Only emit /set records if something has changed since the last one.

This commit was generated by cvs2svn to compensate for changes in r1553,
which included commits to RCS files with non-trunk default branches.

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