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* MFC r236596:Eitan Adler2012-09-021-1/+1
| | | | | | | | | Fix style nit: don't use leading zero for dates in .Dd Approved by: cperciva (implicit) Notes: svn path=/stable/8/; revision=240058
* Fix handling of corrupt compress(1)ed data. [11:04]Bjoern A. Zeeb2011-09-281-12/+19
| | | | | | | | | | | | | Add missing length checks on unix socket addresses. [11:05] Approved by: so (cperciva) Approved by: re (kensmith) Security: FreeBSD-SA-11:04.compress Security: CVE-2011-2895 [11:04] Security: FreeBSD-SA-11:05.unix Notes: svn path=/stable/8/; revision=225827
* MFC r222210, 222211, 222287:Xin LI2011-06-066-68/+134
| | | | | | | | | | | - Diff reduction against NetBSD. The most notable change is to zdiff(1) to handle more file formats including bzip2 and xz. - Match symbolic link handling behavior with GNU gzip, bzip2 and xz: When we are operating on a symbolic link pointing to an existing file, bail out by default, but go ahead if -f is specified. Notes: svn path=/stable/8/; revision=222735
* MFC 218421:Glen Barber2011-02-111-2/+2
| | | | | | | | | | Remove CRT reference from zmore(1). PR: 154441 Approved by: keramida (mentor) Notes: svn path=/stable/8/; revision=218560
* MFC r213044:Xin LI2010-10-071-0/+2
| | | | | | | | | | | | | | | | | In the past gunzip(1) write()'s after each inflate return. This is not optimal from a performance standpoint since the write buffer is not necessarily be filled up when the inflate rountine reached the end of input buffer and it's not the end of file. This problem gets uncovered by trying to pipe gunzip -c output to a GEOM device directly, which enforces the writes be multiple of sector size. Sponsored by: iXsystems, Inc. Reported by: jpaetzel Notes: svn path=/stable/8/; revision=213503
* MFC r211475:Xin LI2010-09-181-1/+8
| | | | | | | | | | | Check return value of dup(), it could be -1 when the system is running out of file descriptors for instance. Found with: Coverity Prevent(tm) CID: 6084 Notes: svn path=/stable/8/; revision=212807
* MFC r208888,208889,209017:Xin LI2010-06-121-30/+30
| | | | | | | | | | | | | - make sure that initialize isb with fstat() on input file before using it. (bin/147275) - Fix grammar for st_nlink. - Style changes. PR: bin/147275 Approved by: re (kensmith) Notes: svn path=/stable/8/; revision=209090
* MFC r207247,r207283,207284:Xin LI2010-05-102-7/+24
| | | | | | | | | | - Add a signal handler for SIGINT which removes output file when necessary. - While I'm there, move unlink_input() slightly down to after closing the output file, in uncompression path. - Language improvements to make the BUGS section easier to read. Notes: svn path=/stable/8/; revision=207838
* MFC r206387:Xin LI2010-04-203-13/+14
| | | | | | | | | Diff reduction against NetBSD and add myself to AUTHORS section of the manual page as I wrote the unpack functionality. No actual executable code change verified with md5(1). Notes: svn path=/stable/8/; revision=206948
* MFC r199066 + 199339:Xin LI2009-12-021-8/+28
| | | | | | | | Apply a NetBSD fix (revision 1.12) to handle multi-session bzip2 files as created by pbzip2. Notes: svn path=/stable/8/; revision=200047
* Correct a stack underflow in gzip:Xin LI2009-07-311-1/+5
| | | | | | | | | | | | | | | | | - Limit suffix to be no more than 30 bytes long. This matches GNU behavior. - Correct usage of memcpy(). Note that this commit only corrects the stack underflow issue, we still need some other fixes to cover other edges. [1] Reported by: Ron Jude <ronj wytheville org> Discussed with: Matthew Green (original NetBSD gzip author), Eygene Ryabinkin <rea-fbsd codelabs ru> [1] Approved by: re (kib) Notes: svn path=/head/; revision=195988
* Sync with NetBSD:Xin LI2009-06-243-10/+10
| | | | | | | | | | | | | - gzip -n does not store timestamp; [1] - Reduce diff against NetBSD by moving some casts in our local versions. PR: bin/134955 Obtained from: NetBSD MFC after: 1 month Notes: svn path=/head/; revision=194916
* Add support for uncompressing pack(1)'ed files. Pack(1) is a program foundXin LI2009-06-212-1/+359
| | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=194579
* Two fixes for SMALL case when compiling with WARNS=6:Xin LI2009-06-191-1/+4
| | | | | | | | | | - Reduce scope where return value can be referenced. - Add a dummy access to timestamp to silence warning. Submitted by: Mingyan Guo <guomingyan gmail com> Notes: svn path=/head/; revision=194508
* Mark functions as __dead2 in order to help the LLVM static checkerColin Percival2008-08-041-2/+2
| | | | | | | | | understand which code paths aren't possible. Reported by: edwin Notes: svn path=/head/; revision=181283
* Sync with NetBSD's license changes.Xin LI2008-07-232-10/+4
| | | | Notes: svn path=/head/; revision=180727
* Reflect the fact that we actually have NetBSD revision 1.3.Xin LI2008-06-301-1/+1
| | | | Notes: svn path=/head/; revision=180136
* Remove clause 3 and 4 of NetBSD license.Xin LI2008-06-301-8/+1
| | | | | | | Obtained from: NetBSD Notes: svn path=/head/; revision=180135
* Make it clear that gzcat expects each argument to be separate files.Xin LI2008-06-301-1/+13
| | | | | | | | | PR: docs/123010 Submitted by: Andrew Wright <andrewhw ieee org> MFC after: 2 weeks Notes: svn path=/head/; revision=180126
* Teach gunzip that .tbz and .tbz2 uncompress to .tar, in a manner similar toRobert Watson2008-03-091-0/+2
| | | | | | | | | | | its existing understanding that .tgz uncompresses to .tar. MFC after: 3 days PR: 121519 Submitted by: Ighighi <ighighi at gmail.com> Notes: svn path=/head/; revision=176980
* When gzipping to a target file, only set the source file flags on theRobert Watson2008-03-091-4/+4
| | | | | | | | | | | | 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> Notes: svn path=/head/; revision=176970
* Fix a few obvious errors in the znew(1) script.Yaroslav Tykhiy2008-02-091-4/+3
| | | | | | | | PR: bin/120249 Submitted by: Jaakko Heinonen <see the PR for email> Notes: svn path=/head/; revision=176133
* - Simulate GNU gzip(1) behavior where full filename isXin LI2007-07-121-7/+7
| | | | | | | | | | | | 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) Notes: svn path=/head/; revision=171389
* Mention 'k' option of gunzip.Xin LI2007-06-061-2/+2
| | | | | | | Pointed out by: ighighi gmail.com Notes: svn path=/head/; revision=170357
* Add a '-k' flag which is similar with its bzip2(1) counterpart,Xin LI2007-05-282-4/+15
| | | | | | | | | | | 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 Notes: svn path=/head/; revision=170053
* Mention a limitation that was inherted from RFC1952, makingXin LI2007-03-161-1/+9
| | | | | | | | | | | it impossible to obtain correct file size from a file that is larger than 4GB before compression. PR: bin/110329 MFC after: 1 week Notes: svn path=/head/; revision=167627
* Do not install zgrep, or links to zgrep, since zgrep is provided bySimon L. B. Nielsen2007-02-103-228/+4
| | | | | | | | | src/gnu/usr.bin/grep. Reviewed by: delphij Notes: svn path=/head/; revision=166621
* Fix typo.Xin LI2007-01-311-1/+1
| | | | | | | Obtained from: DragonFly Notes: svn path=/head/; revision=166363
* Replace the GNU gzip with a slightly modified NetBSD gzip. TheXin LI2007-01-2617-0/+3988
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) Notes: svn path=/head/; revision=166255
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