pax(1): Nix trailing whitespace.

No functional change intended.

pax: fix typos in comments in file_subs.c & tar.c

Stamp out "greengrocers' apostrophes" in various places (arguably there
are still more present, but style guides vary on that, and my energies
spent

pax: fix typos in comments in file_subs.c & tar.c

Stamp out "greengrocers' apostrophes" in various places (arguably there
are still more present, but style guides vary on that, and my energies
spent corralling wayward punctuation marks could be spent elsewhere).

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Add base-256 decoding support (Micha Gorny)

PR/50119: Thomas Klausner: Add --timestamp option to tar.

remove \n from error messages

Recognize extended attribute headers and warn about them since we are not
currently handling them.

PR/46786: Simon Burge: After conversion to 64 bit time_t, tar/pax/cpio
erroneously think that negative time_t's never fit in 32 bits. Rework
conversion code to always use uintmax_t, and detect negati

PR/46786: Simon Burge: After conversion to 64 bit time_t, tar/pax/cpio
erroneously think that negative time_t's never fit in 32 bits. Rework
conversion code to always use uintmax_t, and detect negative values.
XXX[1]: Perhaps we should do the same (use a signed conversion) for all
fields not just for time_t
XXX[2]: pullup for 6

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Use C89 function definitions

Accept -X -

fix -Wsign-compare issues

Kill pre-4.4BSD compat code.

PR/36194: Greg A. Woods: add a '-V' flag to pax for verbose summary without
listing (and other minor fixes)

Coverity CID 343: Rework code so that we don't write after the end of the
array. The end effect is the same though.

Change all the 'return(x)' to 'return c'.
Makes some other searches I want to do a bit easier.

PR/20071: Perry Metzger: --extract handling is broken. This patch fixes
Perry's example.

The quagga-0.98.2 tar archive is busted. It was created with an old tar
program, and then someone appended to it a ustar record. Detect this and
warn, but don't treat it as an error.

Improve error reporting for invalid tar archives.

In GNU-tar mode, don't split filenames to prefix+name because GNU tar does
not honor it.

Keep track of the length of the gnu long name/link hack, so that
we can append to it. Modify the code so that file_write is re-entrant,
even in the gnu long name/link hack.

The old code assumed that

Keep track of the length of the gnu long name/link hack, so that
we can append to it. Modify the code so that file_write is re-entrant,
even in the gnu long name/link hack.

The old code assumed that the buffer already contained the necessary
blocks to satisfy the read file request that contained the long
filename. This is not always the case, specially when we are dealing
with pipes which do shorter reads, thus having more probability
that a long file name will fall across a buffer boundary.

To reproduce, create a tar archive with a lot of gnu-long-names
(pkgsrc/devel/libsigc++2 is a good example), do a tar -tf to get
a list of filenames, compress it and do a tar -tzf to get another
list of the filenames. Notice that the two lists differ.

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- Grr! unterminated buffer string in exclude destination buffer
- fix isfoo() ctype macros to take unsigned char.

PR/25934: Dieter Baron: hard links with long names still fail.
As mentioned in the previous commit, the switch statement in the longlink()
needed simplification and it was a bit incorrect. Only depen

PR/25934: Dieter Baron: hard links with long names still fail.
As mentioned in the previous commit, the switch statement in the longlink()
needed simplification and it was a bit incorrect. Only depend on the passed
type to determine what kind of gnu longlink to produce. Don't try to deduce
it from the archive file type.

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PR/25934: Dieter Baron: tar and hardlinks with long filenames don't work.
- always put the @LongLink tag on the name, not the long-link name.
- pass in what type of long name record we want to create

PR/25934: Dieter Baron: tar and hardlinks with long filenames don't work.
- always put the @LongLink tag on the name, not the long-link name.
- pass in what type of long name record we want to create; one for long-name
or long-link name.
XXX: We should get rid of the switch too.

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Restructure the code to make it more readable. No functional changes.

Welcome to WARNS=3

PR/25299: grant beattie: 1.5.3/i386 kernel set archives confuse -current pax
PR/25310: Juan RP: tar can't unpack MS-DOS gzip files correctly