Commit Graph

10 Commits

Author SHA1 Message Date
Xin LI
4ca8a62bb3 Add support for uncompressing pack(1)'ed files. Pack(1) is a program found
in some commercial Unix systems, which utilizes Huffman minimum redundancy
code tree to compress files.  This implementation supports the "new" pack
format only, just like GNU gzip did.

Thanks for oliver@'s archive set which I can test against, and Mingyan Guo
for providing helpful review of my code.

PR:		bin/109567
MFC after:	1 month
2009-06-21 09:39:43 +00:00
Xin LI
80b807fef2 Two fixes for SMALL case when compiling with WARNS=6:
- Reduce scope where return value can be referenced.
 - Add a dummy access to timestamp to silence warning.

Submitted by:	Mingyan Guo <guomingyan gmail com>
2009-06-19 19:28:21 +00:00
Colin Percival
80d61a6a48 Mark functions as __dead2 in order to help the LLVM static checker
understand which code paths aren't possible.

Reported by:	edwin
2008-08-04 07:36:53 +00:00
Xin LI
bf15662677 Sync with NetBSD's license changes. 2008-07-23 00:03:36 +00:00
Robert Watson
3c23548899 Teach gunzip that .tbz and .tbz2 uncompress to .tar, in a manner similar to
its existing understanding that .tgz uncompresses to .tar.

MFC after:	3 days
PR:		121519
Submitted by:	Ighighi <ighighi at gmail.com>
2008-03-09 13:49:09 +00:00
Robert Watson
c7b65254c4 When gzipping to a target file, only set the source file flags on the
target file after the timestamp has been set; otherwise setting the
timestamp will fail if the flags don't permit it (i.e., uchg).

MFC after:	1 week
PR:		120208
Submitted by:	Ighighi <ighighi at gmail.com>
2008-03-09 11:16:42 +00:00
Xin LI
78b8781ab1 - Simulate GNU gzip(1) behavior where full filename is
being output in verbose mode when doing recursive[1].
 - Use better representation of S:

PR:		bin/114470
Submitted by:	Ighighi <ighighi gmail com> [1]
Approved by:	re (hrs)
2007-07-12 01:17:14 +00:00
Xin LI
2a8e7ac9c8 Add a '-k' flag which is similar with its bzip2(1) counterpart,
meaning that the user wants the input file to be left intact.

Feature request: Ighighi <ighighi gmail.com>
PR:		 bin/103006
MFC after:	 1 month
2007-05-28 08:20:46 +00:00
Xin LI
161c3dc4b0 Fix typo.
Obtained from:	DragonFly
2007-01-31 07:13:25 +00:00
Xin LI
9a9ea25f4a Replace the GNU gzip with a slightly modified NetBSD gzip. The
NetBSD version is a feature-to-feature re-implementation of GNU
gzip using the freely-redistributable zlib and this version is
expected to be mostly bug-to-bug compatible with the GNU
implementation.

 - Because this is a piece of mature code and we want to make
   changes so it is added directly rather than importing to
   src/contrib.
 - Connect newly added code to src/usr.bin/ and rescue/rescue
   build.
 - Disconnect the GNU gzip code from build for now, they will
   be eventually removed completely.
 - Provide two new src.conf(5) knobs, WITHOUT_BZIP2_SUPPORT and
   WITHOUT_BZIP2.

Tested by:	kris (full exp-7 pointyhat build)
Approved by:	core (importing a 4-clause BSD licensed file)
Approved by:	re (adding new utility during -HEAD code slush)
2007-01-26 10:19:08 +00:00