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Use -f to force %scompression. For help, type: %s -h %s: %s is a directory -- ignored %s: %s is not a directory or a regular file - ignored %s: %s is set-user-ID on execution - ignored %s: %s is set-group-ID on execution - ignored %s: %s has the sticky bit set - file ignored %s: %s has %lu other link%c -- unchanged %s: %s: unknown suffix -- ignored %s: %s already has %s suffix -- unchanged internal error in shorten_name do you wish to overwrite (y or n)? %s: %s: warning, name truncated Compress or uncompress FILEs (by default, compress FILES in-place).%s: %s: non-option in GZIP environment variable %s: warning: GZIP environment variable is deprecated; use an alias or script %s: -b operand is not an integer Usage: %s [OPTION]... [FILE]... %s: -Z not supported in this version option not valid in GZIP environment variable %s: option --ascii ignored on this system Mandatory arguments to long options are mandatory for short options too. -c, --stdout write on standard output, keep original files unchanged -d, --decompress decompress -f, --force force overwrite of output file and compress links -h, --help give this help -k, --keep keep (don't delete) input files -l, --list list compressed file contents -L, --license display software license -n, --no-name do not save or restore the original name and timestamp -N, --name save or restore the original name and timestamp -q, --quiet suppress all warnings -r, --recursive operate recursively on directories --rsyncable make rsync-friendly archive -S, --suffix=SUF use suffix SUF on compressed files --synchronous synchronous output (safer if system crashes, but slower) -t, --test test compressed file integrity -v, --verbose verbose mode -V, --version display version number -1, --fast compress faster -9, --best compress betterWith no FILE, or when FILE is -, read standard input.Report bugs to .Copyright (C) 1993 Jean-loup Gailly.This is free software. You may redistribute copies of it under the terms ofthe GNU General Public License .There is NO WARRANTY, to the extent permitted by law.%s %s %s: %s: not in gzip format method crc date time uncompressed (totals) %5s %08lx %s%3d %02d:%02d ??? ?? ??:?? written toderead fromstandard input OK createdreplaced with.gz%s: %s: file name too long ..%s: %s/%s: pathname too long .tgz.tazname too shortcan't recover suffix .tar%s: %s already exists; not overwritten %s: %s compressed to %s %s: %s: timestamp restored OK -- %s %s.exeGZIP--Written by Jean-loup Gailly. -%c: --%s: %s: invalid suffix '%s' storecomprpack lzh defla.z-gz-z_z.Zasciito-stdoutdecompressuncompressforcehelpkeeplistlicenseno-name-presume-input-ttyquietsilentsynchronousrecursivesuffixtestverboseversionfastbestlzwbitsrsyncablehhhhhhhhhhhhhh%hhhhhhh!hhPhhhvhhhhhhhh%hh-P_hhxhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh_hhxhhhhhhhhhhhhhhJanFebMarAprMayJunJulAugSepOctNovDec.ab:cdfhH?klLmMnNqrS:tvVZ123456789 ??     output in compress .Z format not supported      Bad table corrupt input.corrupt input. Use zcat to recover some data. %s: %s: warning, unknown flags 0x%x %s: %s: compressed with %d bits, can only handle %d bits invalid compressed data -- unexpected end of fileinvalid compressed data -- Huffman code bit length out of rangetoo many leaves in Huffman treeinvalid compressed data--length errortoo few leaves in Huffman tree %s: %s: not a valid zip file %s: %s: first entry not deflated or stored -- use unzip %s: %s: encrypted file -- use unzip invalid compressed data--format violatedinvalid compressed data--length mismatchinternal error, invalid method %s: %s: invalid compressed data--crc error %s: %s: invalid compressed data--length error %s: %s has more than one entry--rest ignored %s: %s has more than one entry -- unchanged len %lu, siz %lu %s: %s: %s %s: memory_exhausted %s: %s: warning: %s %s: %s: unexpected end of file %5.1f%%0w,aQ mjp5cd2yҗ+L |~-d jHqA}mQDžӃVlkdzbeO\lcc=  n;^iLA`rqg<GK k 5lBɻ@l2u\E Y=ѫ0&:QQaп!#ijV(_ $ |o/LhXa=-fAvq Ҙ*q俟3Ըx4  j-=mld\cQkkbal0eNbl{WٰeP긾|bI-|ӌeLXaMQ:t0AJו=mѤjiCn4Fgи`s-D3_L | jm Zjz  ' }Dңhi]Wbgeq6lknv+ӉZzJgo߹ﾎCՎ`~ѡ8ROggW?K6H+ L J6`zA`Ugn1yiFafo%6hRw G "/&U;( Z+j\1е,[d&cju m ?6grWJz+{8 Ғ |! ӆBhn[&wowGZpj;f\ eibkaElx TN³9a&g`MGiIwn>JjѮZf @;7SŞϲG0º0S$6к)WTg#.zfJah]+o*7 Z-Y@file timestamp out of range for gzip format%s: %s: file size changed while zipping 1.9dtLLLLLLL\L<(NULL)pp@@@@ Pppp@@@@@@(NULL)<66;|tD4D \4pDtd $  tdLtT4(td&(-DT-\-x-.11 Fh F F TL$ 4St Z \P ` ` a bX cl 4d i k0 Dm| 4p s u Tv8dyd{d<4$DHdTh|DԖ4TDtT d,hT|Ԣ40dTtTԤTĨd$L$`4d0THtd$t,tdĶTĸ ,tt,4DT\ zRx /D$4FJ w?:*3$"\(t+<nDC @ CBV @P )KI L <xqFBD C(G@ (A ABBD X<ZQN E(H0G8i 0A(B BBBA K 0A(B BBBA |zlJ4l_BMA U ABA AB "H V K K L FBB B(A0A8FP 8F0A(B BBBL $d]AQK }AA HAPl AA 1E] E (HBAD sALKAq F (0ADG c CAE 8@BEH C(G@c (A ABBF H|* BBB B(A0A8Fp@ 8A0A(B BBBF LBBBB B(A0A8D 8A0A(B BBBA @ BAC G0u  AABJ 8T@a8B0\$5Gt$"AAD%,AAM %KAS D O I 0D%A I m K ~ R Q E ((NDG s ABA L0(BBB B(D0A8G   8A0A(B BBBG =<iR0FBE B(A0D8G=EADL=eBEB B(A0H8D 8A0A(B BBBD L<(BBFB H(A0A8G ` 8A0A(B BBBK HBBB B(A0A8G R l F B  8A0A(B BBBF  Z g A  b Q A TOBAA G  K K A a f N A G  AABA hlQFBE B(A0H8FP 8A0A(B BBBJ  8C0A(B BBBH | 8F0A(B BBBE $T[YEM hFATD(UBNI B(A0A8 0A(B BBBH p$V ( WAHHP AAA HWBBB B(A0A8Dp 8D0A(B BBBJ H\BBB B(A0A8DP 8A0A(B BBBE HH L^BBB E(A0A8D`Z 8A0A(B BBBK , _qLN ABH bFBE B(A0D8FP 8E0A(B BBBD  e($ pgACF  AAA LP hBBE B(A0A8G 8A0A(B BBBA d jBEG E(A0H8MP 8P0H(B BBBO x 8A0A(B BBBA H llFDB B(H0H8I` 8C0A(B BBBH |T r/FBB B(A0A8D 8C0A(B BBBA  8A0A(B BBBA a 8A0C(B BBBA  xHlO A H yLFBB B(A0F8FP8 8C0A(B BBBC < } Hs E F J @` }FBB A(A0DP0 0A(A BBBH  `g  Ȃ Ԃ98 MEE A(C0R (D BBBI 80 d`FEB A(A0F(D BBBl   ;EuH EFHE B(A0A8DP 8D0A(B BBBB  5EAT̄+EAM4st~LHeEAD lCEAD 8ȅSFED F(F0l (A ABBA 8FBD C(D0 (C ABBA `YR_ G `$Vc G `8D0FFH T FBH A ASH ?<Ї"FTA D(D (A ABBB 0FHH F0e  AABK (IEID m CAA 4[ H+EZ A JlvH` I $hcEL0K AA vH`~ J H lFKB B(A0A8Dp 8D0A(B BBBG D40pFAC j ABI C DBG \ABL|XVFBA A(F0I (C ABBG g(A ABB4hADD0z AAK ~ AAH TDSFBB A(D0I 0A(A BBBG d8xmFDA G   AABH ES A %`  >E` K H A (%`0D\LHXS`EV|2Ka A $,-EGG WAA(43EDD cAAHBE|4 xFAA } ABH ` ABM 4DМjFAC Dp  AABH |HE] N S<8FHA A(G (A ABBH ,_kDD hAB $K A ,D`EC DKD F $zRx  , <бFHA A(G (A ABBD LFBB A(A0^ (A BBBG | (A BBBE D\dt( FMQ L(A0A8Dz 8A0A(B BBBA  8F0A(B BBBA DeFEE E(H0H8G@n8A0A(B BBB$32`V!""""@""8PP p("P"accddfhkl$L,n/N4GqMqT`rjSqtvv~V19Zb (p  PV!XV!o0x h J P]!  oopooo\`[! !! !0!@!P!`!p!!!!!!!!!"" 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GA*FORTIFYGA+GLIBCXX_ASSERTIONS GA*GOW*GA*cf_protectionGA+omit_frame_pointerGA+stack_clashGA!stack_realign GA*FORTIFY  GA+GLIBCXX_ASSERTIONSgzip-1.9-15.el8_10.x86_64.debug7zXZִF!t/]?Eh=ڊ2N#/ 6mtXSjQHߤ\+boBWPUw8_N^FSSȠ7}@Lj=6؆t_e WW#tCˋMزڭ >>JQta,S[P=44g_yB[bҾXlE SEQLo鸃(f dBcUm?L(o]~nO&N/n#M٣YV$L%3>.35 ͇P 3"#E%ЦUj"ކ Ӽݟ׭̹UYP0i4,+3Jx|`EEI:Hvv OE=nAMz"&Z1bZDǛ<>:1X%#DѮ7;j]qVط9ZU^ #EI m=~9>͖tO!{ULrir@գ$ `OZSp5$̗>\*"2Lq0~CedFotLMuQE1eL^9͎6lz@ݳDZ#'ݶF"H4q+Zb}(oZ20NGʙ9o؟47P,3NoS6yqc6%"[' < V#/$s,2P)vA1R Wz f1-4-&ƒ4>KNE sfC]z5v{z.8,P7ͭk6djĝ^CuV\P]{hDZ[`u9D(&=cKݏ.SNzœ/U|uRk+1ux#mɶ >#7n3/zA`$S3G0%SBW;u4K>F7BPZ֡бnAqv`j)8'<R>K UzĭHõt?p,^?۱ ; [!][i KݖT,LuFBtW;%B=[?w4]5h}}NM+1L:GCGFIJf,?]Da -&c8B< 5 2;'~yQZ7‡PINwL=ʍfGQyZ]pGa v.̳ՖP{  f3iLNuh_+W m*rc9@_sDCQ>2kqLh-pHm>f)ۈ,b8naw\yF㺃*ɹ.psBSqJWRQ^Q3"NlC{_&% WN_eN:N=pD6J*PI ^[-g 4;uA,L&,o=a (!-yuqTt̞%=* C,SETt΅[ڑxV;)hvSȺ@=)M]N#6k5ït*aBue'vwhDlQy)⌽C{(DU!?CvKvš פ7er;\ gHQ ^{1 ]Q\nϴٰF40@ԼWe%]qG.k_YvbtF6INW<o]\-Gs֧"3hÙ%[8G(OgpקF #b-$~vK H~Э`^~X22 d쪼#vo:XҦ7DDF&KSbNԘzO(+ƹ?>Z 0Ab<*v5FO'U~uAͿZrO:yt:YUdJ(' Hq.cQ3MI . T _b$sT%ʞty A#X0ngo?ZwѱgYZ.shstrtab.interp.note.gnu.property.note.ABI-tag.note.gnu.build-id.gnu.hash.dynsym.dynstr.gnu.version.gnu.version_r.rela.dyn.rela.plt.init.plt.sec.text.fini.rodata.eh_frame_hdr.eh_frame.init_array.fini_array.data.rel.ro.dynamic.got.data.bss.gnu.build.attributes.gnu_debuglink.gnu_debugdata  & 4$Go008Q hhYx x Jaonopp} B   %%P*P*   @ @ " --118PV!PVXV!XV`V!`V `[!`[P]!P]`!` !dH H ndl lf$/fdo>AUTHORS000064400000000142152527125130005614 0ustar00gzip was written by Jean-loup Gailly , and Mark Adler for the decompression code. THANKS000064400000031716152527125130005472 0ustar00gzip was written by Jean-loup Gailly , with portions written by Mark Adler (inflate.c), Peter Jannesen (unlzw.c) and Haruhiko Okumura (unlzh.c). The zip deflate format was defined by Phil Katz. Thanks to those who reported problems and suggested various improvements. Here is a partial list of them: Robert Abramovitz bromo@cougar.tandem.com Jay Adams jka@ece.cmu.edu Mark Adler madler@cco.caltech.edu Edwin Allum edwin@csri.toronto.edu Joseph Arceneaux jla@gnu.ai.mit.edu Tim Auckland tda10@cus.cam.ac.uk Ken-ichiro Aoki aoki@madonna.physics.ucla.edu David Ascher da@marlowe.cog.brown.edu Eric Backus ericb@lsid.hp.com Becky A. Badgett badgett@cs.utexas.edu Bo Nygaard Bai bai@iesd.auc.dk Dave Barber dbarber@apocalypse.bbn.com Rene Beaulieu reneb@distri.hydro.qc.ca Neal Becker neal@ctd.comsat.com Dieter Becker becker@med-in.uni-sb.de Nelson H. F. Beebe beebe@geronimo.math.utah.edu Jeff Beadles jeff@onion.rain.com David J. N. Begley dbegley@st.nepean.uws.edu.au Bob Beresh rberesh@rd.hydro.on.ca Jim Bernard jbernard@iola.mines.colorado.edu Karl Berry karl@cs.umb.edu James W. Birdsall jwbirdsa@picarefy.picarefy.com Scott Bolte scott@craycos.com Wayne E. Bouchard web@paladine.hacks.arizona.edu Marc Boucher marc@cam.org Ola Brahammar pt90ob@pt.hk-r.se Dave Brennan brennan@hal.com Alan Brown dogbowl@dogbox.acme.gen.nz Michael L. Brown brown@wi.extrel.com Rodney Brown rdb@mel.cocam.oz.au Bruce bde@runx.oz.au Bill Bumgarner bbum@stone.com Leila Burrell-Davis leilabd@syma.sussex.ac.uk Roger Butenuth butenuth@ira.uka.de Jon Cargille jcargill@cs.wisc.edu Bud Carlson bud@isle.pegasus.com Lim Fung Chai fclim@i1sin.daq.semi.harris.com Wes Chalfant wes@kofax.com Andrew A. Chernov ache@astral.msk.su Paul Close pdc@lunch.wpd.sgi.com Jeff Coffler coffler@jac.enet.dec.com Will Colley wcc3@occs.cs.oberlin.edu Roger Cornelius sherpa!rac@uunet.uu.net Kevin Cosgrove kevinc@tekig6.pen.tek.com Stephen J Cowley s.j.cowley@amtp.cam.ac.uk Ron Cox roncox@indirect.com Frank Crawford frank@photon.ansto.gov.au James R. Crawford qralston@cislabs.pitt.edu Lawrence Crowl crowl@research.cs.orst.edu Klaus Dahlenburg kdburg@incoahe.hanse.de William E Davidsen davidsen@ariel.crd.ge.com John M. DeDourek dedourek@aixive2.cs.unb.ca Jeff Deifik jdeifik@isi.edu Vince DeMarco vince@whatnxt.cuc.ab.ca Michael De La Rue p91152@cplab.physics.edinburgh.ac.uk Jeff Delinck delinck@pa621a.inland.com John DeRoo deroo@grout.adv.shr.dec.com Jim Diamond zsd@axe.drea.dnd.ca Stefano Diomedi sd@teculx.tecsiel.it Lawrence R. Dodd dodd@roebling.poly.edu Matthew Donadio donadio@mxd120.rh.psu.edu Andy Dougherty andy@crystal.phys.lafayette.edu Darrell Duane dduane@mason1.gmu.edu John Eaton jwe@che.utexas.edu Will Edgington wedgingt@ptolemy.arc.nasa.gov Brian Edmonds edmonds@edmonds.home.cs.ubc.ca Paul Eggert eggert@cs.ucla.edu Enami enami@sys.ptg.sony.co.jp Kristoffer Eriksson ske@pkmab.se Daniel Eriksson m91der@bellatrix.tdb.uu.se Denis Excoffier 3.1416@free.fr Rik Faith faith@cs.unc.edu Larry Fahnoe fahnoe@c1mpls.mn.org Cristian Ferretti cfs@poincare.mat.puc.cl Karl-Jose Filler pla_jfi@pki-nbg.philips.de Valery Fine fine@vxcern.cern.ch Bob Fischer bobf@milne.geology.yale.edu Per Foreby perf@efd.lth.se Alexander Fraser alex@cs.umb.edu Noah Friedman friedman@gnu.ai.mit.edu Bob Friesenhahn bfriesen@iphase.com Gerhard Friesland-Koepke frieslan@rzdspc3.informatik.uni-hamburg.de Andy Fyfe andy@scp.caltech.edu Geoff geoff@frs.faxon.com Arnd Gerns gerns@informatik.uni-hildesheim.de Kaveh R. Ghazi ghazi@staccato.rutgers.edu Torbjorn Granlund tege@sics.se Carl Greco cgreco@parrot.creighton.edu Bruno Haible haible@ma2s2.mathematik.uni-karlsruhe.de Junio Hamano junio@shadow.twinsun.com Harald Hanche-Olsen hanche@ams.sunysb.edu Darrel R. Hankerson hankedr@mail.auburn.edu Mark Hanning-Lee markhl@romeo.caltech.edu Lars Hecking st000002@hrz1.hrz.th-darmstadt.de Aki Helin aki.helin@iki.fi Ruediger Helsch ruediger@ramz.ing.tu-bs.de Mark C. Henderson mch@sqwest.wimsey.bc.ca Karl Heuer karl@kelp.boston.ma.us Jarkko Hietaniemi jhi@dol-guldur.hut.fi Thomas Hiller hiller@fzi.de Eiji Hirai hirai@cc.swarthmore.edu Kjetil Torgrim Homme kjetilho@ifi.uio.no Robert D. Houk rdh@sli.com Jim Howard jim_howard@mentorg.com Preston Hunt gt5708a@prism.gatech.edu Shane C Hutchins sch@nymph.msel.unh.edu Hutch hutchinson@wrair-emh1.army.mil Lester Ingber ingber@alumni.caltech.edu Ken Ishii ishii@sni-usa.com Per Steinar Iversen iversen@vsfys1.fi.uib.no Chris Jacobsen jacobsen@xray1.physics.sunysb.edu Michal Jaegermann ntomczak@vm.ucs.ualberta.ca Brian Jones brianj@skat.usc.edu Denny de Jonge witaddj@dutrex.tudelft.nl Arne H. Juul arnej@lise.unit.no Dana Jacobsen jacobsd@solar.cor2.epa.gov Peter Jannesen peter@ncs.nl Sverre Jarp Brian D. Johnston johnstonb@med.ge.com Walter W. Jones wwj@candela.cfr.nist.gov Tom Judson judson@scf.usc.edu Henry G. Juengst juengst@saph2.physik.uni-bonn.de Sarantos Kapidakis sarantos%manteion@ics.forth.gr Amir J. Katz amir@matis.ingr.com Steve Kelem kelem@castor.xilinx.com Steven Kimball kimball@shrew.sanders.lockheed.com Randy Kirchhof rkk@posms.aus.tx.us Ned Kittlitz kittlitz@seagoon.sw.stratus.com Sakai Kiyotaka ksakai@mtl.t.u-tokyo.ac.jp Philip C Kizer pckizer@gonzo.tamu.edu Pete Klammer pklammer@ouray.denver.colorado.edu Fritz Kleemann kleemann@informatik.uni-wuerzburg.dbp.de Wilhelm B. Kloke wb@ifado.arb-phys.uni-dortmund.de Tom Kloos tk@sequent.com Carsten Koch carsten.koch@icem.de Winfried Koenig win@in.rhein-main.de Mathias Koerber mathias@solomon.technet.sg Steph Konigsdorfer s.konigsdorfer@frmy.bull.fr Leif Kornstaedt leif@rumtifsl.ruessel.sub.org Michael D. Lawler mdlawler@bsu-cs.bsu.edu Kevin Layer layer@franz.com Howard D. Leadmon howardl@wb3ffv.ampr.org Alexander Lehmann alex@hal.rhein-main.de Simon Leinen simon@lia.di.epfl.ch Burt Leland burt@molecular.com Tony Leneis tony@plaza.adp.ds.com Hugues Leroy hugues.leroy@irisa.fr Marty Leisner leisner@eso.mc.xerox.com Charles Levert charles@aramis.comm.polymtl.ca Richard Levitte levitte@e.kth.se Torbj|rn Lindh toobii@elixir.e.kth.se David R. Linn drl@vuse.vanderbilt.edu Antonio Lioy cat@athena.polito.it Jamie Lokier u90jl@ecs.oxford.ac.uk Richard Lloyd R.K.Lloyd@csc.liv.ac.uk David J. MacKenzie djm@eng.umd.edu John R MacMillan john@chance.gts.org Ron Male male@eso.mc.xerox.com Don R. Maszle maze@bea.lbl.gov Jaye Mathisen osyjm@cs.montana.edu Telly Mavroidis mavroidi@acf2.nyu.edu Imed Eddine Mbarki mbarki@pacific.cmpe.psu.edu Steeve McCauley steeve@pooh.geophys.mcgill.ca Tom McConnell tmcconne@sedona.intel.com Tod McQuillin mcquill@ccit05.duq.edu Tye McQueen tye@spillman.com Bernd Melchers melchers@chemie.fu-berlin.de Jason Merrill jason@jarthur.claremont.edu Dean S. Messing deanm@medulla.labs.tek.com M. Mesturino mesturino@cselt.stet.it Luke Mewburn zak@rmit.edu.au Jim Meyering meyering@cs.utexas.edu Dragan Milicic milicic@math.utah.edu Frederic Miserey none.fred@applelink.apple.com Marcel J.E. Mol marcel@duteca.et.tudelft.nl Soren Juul Moller sjm@dde.dk Chris Moore moore@src.bae.co.uk Dan Mosedale mosedale@genome.stanford.edu Helmut Muelner hmuelner@fiicmds04.tu-graz.ac.at Urban D Mueller umueller@amiga.physik.unizh.ch Ulrich Mueller ulm@vsnhdb.cern.ch Timothy Murphy tim@maths.tcd.ie Greg Naber greg@squally.halcyon.com Jay Nayegandhi jayng@bbiv02.enet.dec.com Paul K. Neville II pkn2@idsi.com Karl L. Noell noell@informatik.fh-wiesbaden.dbp.de Demizu Noritoshi nori-d@is.aist-nara.ac.jp Todd Ogasawara todd@protege.pegasus.com Helge Oldach helge.oldach@stollmann.de Arthur David Olson ado@elsie.nci.nih.gov Piet van Oostrum piet@cs.ruu.nl Rafael R. Pappalardo rafapa@obelix.cica.es Mike Pearlman canuck@masc38.rice.edu Jörg-Volker Peetz peetz@dynato-kyma.net Yves Perrenoud pyves@nuga.alphanet.ch Hal Peterson hrp@pecan.cray.com Pascal Petit petit@cadillac.ibp.fr Bruno Pillard bp@chorus.fr Franc,ois Pinard pinard@iro.umontreal.ca Jay Pinkos pinkos@butyng.bu.edu Petr Písař petr.pisar@atlas.cz Thomas Plass thomas@cogsci.ed.ac.uk Mike Polo mikep@cfsmo.honeywell.com Francesco Potorti pot@fly.cnuce.cnr.it Will Priest bpriest@lobby.ti.com David Purves purves@apogee.com Andreas Raab ar@nvmr.robin.de Eric S. Raymond esr@snark.thyrsus.com Klaus Reimann kr@cip.physik.uni-stuttgart.de Michael Rendell michael@mercury.cs.mun.ca Hal Render render@massive.uccs.edu Julian F. Reschke julian@math.uni-muenster.de Phil Richards Phil.Richards@prg.oxford.ac.uk Roland B Roberts roberts@nsrl31.nsrl.rochester.edu Arnold Robbins arnold@cc.gatech.edu Kevin Rodgers kevin@rolling-stone.den.mmc.com Kai Uwe Rommel rommel@informatik.tu-muenchen.de Paul Rubin phr@america.telebit.com Wolfgang Rupprecht wolfgang@wsrcc.com Jonathan Ryshpan jon@amito.hitachi.com Paul A Sand pas@unh.edu Tony Sanders sanders@bsdi.com Mike Sangrey mike@sojurn.lns.pa.us Niimi Satoshi a01309@cfi.waseda.ac.jp Marc Schaefer sysadm@alphanet.ch Andreas Schwab schwab@lamothe.informatik.uni-dortmund.de Eric Schenk schenk@cs.toronto.edu Eric P. Scott eps@cs.sfsu.edu Olaf Seibert rhialto@mbfys.kun.nl Sunando Sen sens@fasecon.econ.nyu.edu Harry Shamansky hts@hertz.eng.ohio-state.edu Amos Shapira amoss@cs.huji.ac.il Rick Sladkey jrs@world.std.com Daniel L Smith dls@autodesk.com Fred Smith fredex%fcshome@merk.merk.com Ripduman Sohan Ripduman.Sohan@cl.cam.ac.uk Stephen Soliday soliday@ncat.edu Paul Southworth pauls@css.itd.umich.edu Rob Spencer robbie@winkle.bhpese.oz.au Richard Stallman rms@gnu.ai.mit.edu Carsten Steger carsten.steger@informatik.tu-muenchen.de David Sundstrom sunds@anon.asic.sc.ti.com Ed Sznyter ews@babel.babel.com Hideaki Tanabe arctanx@iyeyasu.ynl.t.u-tokyo.ac.jp Andrew Telford ajt@peregrin.resmel.bhp.com.au Glenn E. Thobe thobe@getunx.info.com Kei Thomsen kt@keihh.hanse.de Karsten Thygesen karthy@dannug.dk Mark Towfiq towfiq@microdyne.com Jeff Treece treece@sabbagh.com Oliver Trepte oliver@ikaros.fysik4.kth.se Stephane Tsacas slt@is21.isoft.fr Stephen Tweedie sct@dcs.ed.ac.uk John R. Vanderpool fish@daacdev1.stx.com Sotiris Vassilopoulos vassilopoulos@virginia.edu Pedro A. M. Vazquez vazquez@iqm.unicamp.br Arjan de Vet devet@win.tue.nl Larry W. Virden lvirden@cas.org Vadim V. Vlasov vvlasov@inucres.msk.su Eduard Vopicka eduard.vopicka@vse.cs Theo Vosse vosse@ruls41.leidenuniv.nl Darin Wayrynen darin@pcg.uucp Marcel Waldvogel marcel@nice.usergroup.ethz.ch Stephen J. Walick steve@nshore.org Gray Watson gray@antaire.com David Watt dmwatt@smersh.cambridge.ma.us Scott Weikart scott@igc.apc.org Ivo Welch iwelch@agsm.ucla.edu Jochen Wiedmann zrawi01@zmcipdec1.zdv.uni-tuebingen.de Gijsb. Wiesenekker wiesenecker@sara.nl Wietze van Winden wietze@swi.psy.uva.nl Frank Wuebbeling wuebbel@math.uni-muenster.de Larry W. Virden lwv26@cas.org Bill Wohler wohler@sap-ag.de Jamie Zawinski jwz@lucid.com Christos Zoulas christos@deshaw.com README000064400000013766152527125130005444 0ustar00This is the file README for the gzip distribution. The GNU gzip home page is https://www.gnu.org/software/gzip. gzip (GNU zip) is a compression utility designed to be a replacement for 'compress'. Its main advantages over compress are much better compression and freedom from patented algorithms. The GNU Project uses it as the standard compression program for its system. gzip currently uses by default the LZ77 algorithm used in zip 1.9 (the portable pkzip compatible archiver). The gzip format was however designed to accommodate several compression algorithms. See below for a comparison of zip and gzip. gunzip can currently decompress files created by gzip, compress or pack. The detection of the input format is automatic. For the gzip format, gunzip checks a 32 bit CRC. For pack, gunzip checks the uncompressed length. The 'compress' format was not designed to allow consistency checks. However gunzip is sometimes able to detect a bad .Z file because there is some redundancy in the .Z compression format. If you get an error when uncompressing a .Z file, do not assume that the .Z file is correct simply because the standard uncompress does not complain. This generally means that the standard uncompress does not check its input, and happily generates garbage output. gzip produces files with a .gz extension. Previous versions of gzip used the .z extension, which was already used by the 'pack' Huffman encoder. gunzip is able to decompress .z files (packed or gzip'ed). Several planned features are not yet supported (see the file TODO). See the file NEWS for a summary of changes since the last release. See the file INSTALL for installation instructions. WARNING: gzip is sensitive to compiler bugs, particularly when optimizing. Use "make check" to check that gzip was compiled correctly. Try compiling gzip without any optimization if you have a problem. Please send all comments and bug reports by electronic mail to . Bug reports should ideally include: * The complete output of "gzip -V" (or the contents of revision.h if you can't get gzip to compile) * The hardware and operating system (try "uname -a") * The compiler used to compile (if it is gcc, use "gcc -v") * A description of the bug behavior * The input to gzip, that triggered the bug If you send me patches for machines I don't have access to, please test them very carefully. gzip is used for backups, it must be extremely reliable. The znew and gzexe shell scripts provided with gzip benefit from (but do not require) the (non-GNU) cpmod utility to transfer file attributes. The sample programs zread.c, sub.c and add.c in subdirectory sample are provided as examples of useful complements to gzip. Read the comments inside each source file. The perl script ztouch is also provided as example (not installed by default since it relies on perl). gzip is free software, you can redistribute it and/or modify it under the terms of the GNU General Public License, a copy of which is provided under the name COPYING. The latest version of gzip is always available from https://ftp.gnu.org/gnu/gzip or in any of the GNU mirror sites. Many thanks to those who provided me with bug reports and feedback. See the files THANKS and ChangeLog for more details. Note about zip vs. gzip: The name 'gzip' was a very unfortunate choice, because zip and gzip are two really different programs, although the actual compression and decompression sources were written by the same persons. A different name should have been used for gzip, but it is too late to change now. zip is an archiver: it compresses several files into a single archive file. gzip is a simple compressor: each file is compressed separately. Both share the same compression and decompression code for the 'deflate' method. unzip can also decompress old zip archives (implode, shrink and reduce methods). gunzip can also decompress files created by compress and pack. zip 1.9 and gzip do not support compression methods other than deflation. (zip 1.0 supports shrink and implode). Better compression methods may be added in future versions of gzip. zip will always stick to absolute compatibility with pkzip, it is thus constrained by PKWare, which is a commercial company. The gzip header format is deliberately different from that of pkzip to avoid such a constraint. On Unix, gzip is mostly useful in combination with tar. GNU tar 1.11.2 and later has a -z option to invoke gzip automatically. "tar -z" compresses better than zip, since gzip can then take advantage of redundancy between distinct files. The drawback is that you must scan the whole tar.gz file in order to extract a single file near the end; unzip can directly seek to the end of the zip file. There is no overhead when you extract the whole archive anyway. If a member of a .zip archive is damaged, other files can still be recovered. If a .tar.gz file is damaged, files beyond the failure point cannot be recovered. (Future versions of gzip will have error recovery features.) gzip and gunzip are distributed as a single program. zip and unzip are, for historical reasons, two separate programs, although the authors of these two programs work closely together in the Info-ZIP team. zip and unzip are not associated with the GNU project. See http://info-zip.org/ for more about zip and unzip. For any copyright year range specified as YYYY-ZZZZ in this package note that the range specifies every single year in that closed interval. ======================================================================== Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2018 Free Software Foundation, Inc. Copyright (C) 1992, 1993 Jean-loup Gailly Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the ``GNU Free Documentation License'' file as part of this distribution. TODO000064400000006613152527125130005245 0ustar00TODO file for gzip. Some of the planned features include: - Remove some of the old porting cruft, since we no longer support it. - Separate out the shell scripts like gzexe into a new little package; these scripts are less used and less reliable and should be optional. - Internationalize by using gettext and setlocale. - Structure the sources so that the compression and decompression code form a library usable by any program, and write both gzip and zip on top of this library. This would ideally be a reentrant (thread safe) library, but this would degrade performance. In the meantime, you can look at the sample program zread.c. The library should have one mode in which compressed data is sent as soon as input is available, instead of waiting for complete blocks. This can be useful for sending compressed data to/from interactive programs. - Make it convenient to define alternative user interfaces (in particular for windowing environments). - Support in-memory compression for arbitrarily large amounts of data (zip currently supports in-memory compression only for a single buffer.) - Map files in memory when possible, this is generally much faster than read/write. (zip currently maps entire files at once, this should be done in chunks to reduce memory usage.) - Add a super-fast compression method, suitable for implementing file systems with transparent compression. The lzrw series of algorithms are available at http://www.ross.net/compression/. - Add a super-tight (but slow) compression method, suitable for long term archives. See, for example, US Patents 4,286,256 4,295,125 4,463,342 4,467,317 4,633,490 4,652,856 4,891,643 4,905,297 4,935,882 4,973,961 5,023,611 5,025,258, which have all expired. More recent patent-free techniques may also be available. Note: I will introduce new compression methods only if they are significantly better in either speed or compression ratio than the existing method(s). So the total number of different methods should reasonably not exceed 3. (The current 9 compression levels are just tuning parameters for a single method, deflation.) - Add optional error correction. One problem is that the current version of ecc cannot recover from inserted or missing bytes. It would be nice to recover from the most common error (transfer of a binary file in ascii mode). - Add a block size (-b) option to improve error recovery in case of failure of a complete sector. Each block could be extracted independently, but this reduces the compression ratio. For one possible approach to this, please see: https://ozlabs.org/~rusty/gzip.rsync.patch - Use a larger window size to deal with some large redundant files that 'compress' currently handles better than gzip. - Implement the -e (encrypt) option. Send comments to . ======================================================================== Copyright (C) 1999, 2001, 2006, 2009-2018 Free Software Foundation, Inc. Copyright (C) 1992, 1993 Jean-loup Gailly Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the ``GNU Free Documentation License'' file as part of this distribution. ChangeLog000064400000254406152527125130006334 0ustar002018-03-05 Paul Eggert fflush: adjust to glibc 2.28 libio.h removal Problem reported by Daniel P. Berrangé in: https://lists.gnu.org/r/bug-gnulib/2018-03/msg00000.html * lib/fbufmode.c (fbufmode): * lib/fflush.c (clear_ungetc_buffer_preserving_position) (disable_seek_optimization, rpl_fflush): * lib/fpending.c (__fpending): * lib/fpurge.c (fpurge): * lib/freadable.c (freadable): * lib/freadahead.c (freadahead): * lib/freading.c (freading): * lib/freadptr.c (freadptr): * lib/freadseek.c (freadptrinc): * lib/fseeko.c (fseeko): * lib/fseterr.c (fseterr): * lib/fwritable.c (fwritable): * lib/fwriting.c (fwriting): Check _IO_EOF_SEEN instead of _IO_ftrylockfile. * lib/stdio-impl.h (_IO_IN_BACKUP) [_IO_EOF_SEEN]: Define if not already defined. 2018-01-07 Jim Meyering version 1.9 * NEWS: Record release date. 2018-01-06 Paul Eggert gzexe: port to macOS mktemp Problem reported by Jeffrey Walton (Bug#30000). * gzexe.in, zdiff.in, zgrep.in: Don’t assume that mktemp works when given no arguments, as this is not true for macOS. Instead, use a syntax that should work with coreutils, NetBSD, and macOS. While we’re in the neighborhood, be more consistent about how program names are used in temporary file names. Also, watch out for TMPDIR values that are not absolute file names, since they can cause problems (e.g., leading "-"). 2018-01-03 Jim Meyering maint: update gnulib and copyright dates for 2018 * gnulib: Update to latest. * bootstrap: Update from gnulib. * all files: Run "make update-copyright". 2017-12-16 Jim Meyering build: update gnulib to latest 2017-11-24 Paul Eggert maint: zforce and zmore exit status cleanup Problem reported by Nelson H. F. Beebe. * zforce.in, zmore.in: On failure, exit with status 1 instead of with whatever failing status that printf or mv exited with. 2017-11-23 Paul Eggert gzexe: ensure file always exists * gzexe.in: When in a filesystem that does not support symlinks, use rm+cp rather than mv to make backups, so that the argument file always exists. 2017-11-23 Jim Meyering build: update gnulib to latest 2017-11-16 Jim Meyering gzexe: work even without the ability to make a hard link * gzexe.in: When ln -f fails to create a "~"-style backup, fall back to using mv -f. Reported by Bruno Haible in http://debbugs.gnu.org/29266 2017-11-15 Jim Meyering build: make each generated script unwritable * Makefile.am (.in): Ensure that each generated script is unwritable. This makes it less likely that someone (even me) will mistakenly modify one of those generated files. 2017-11-13 Jim Meyering zless, znew: exit 1 upon --help or --version write failure * zless.in: Exit 1 upon --help or --version write error. * znew.in: Likewise. 2017-11-12 Paul Eggert maint: script diagnostics status cleanup Problem reported by Bruno Haible (Bug#29266#20). * NEWS: Mention this. * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zforce.in: * zgrep.in, zless.in, zmore.in, znew.in: Use printf instead of echo if the argument might contain ‘\’, at least in theory. Don’t assume printf exits with status 1 on failure; it might be some other positive status. * gzexe.in: Use printf consistently instead of echo, and proscribe it instead of echo. tests: don’t be so strict about timestamps * tests/timestamp: We’ve had many false alarms about timestamps that are not gzip problems, but instead are problems with ‘touch’. Attempt to work around them by not trusting ‘touch’ so much. Problems and parts of solutions proposed by Bruno Haible. 2017-11-10 Paul Eggert build: update gnulib submodule to latest 2017-11-09 Jim Meyering gnulib: update to latest maint: use noreturn, not ATTRIBUTE_NORETURN Use gnulib's stdnoreturn module so we can include and the "noreturn" helper macro, thus replacing the definition and uses of ATTRIBUTE_NORETURN. * bootstrap.conf (gnulib_modules): Add stdnoreturn. * gzip.h (ATTRIBUTE_NORETURN): Remove definition. Include stdnoreturn.h and use "noreturn" for each ATTRIBUTE_NORETURN-adorned function declaration. * gzip.c (do_exit, try_help): Use "noreturn". tests: unpack-invalid: correct and clean up a test * tests/unpack-invalid: There was a logic error that would have caused this test to ignore a failure if first iteration of the loop set fail=1 and the second one reset it to 0. Also, use "returns_ 1 ...", to require an exit status of 1. 2017-11-07 Paul Eggert gzip: diagnose out-of-range MTIME This seems to be the problem reported by Bruno Haible for GNU/Hurd i386 with touch 8.26 and glibc 2.24 (Bug#29033#20). * NEWS: Document this. * gzip.c (get_method): If MTIME is out of range for this platform, warn and substitute the nearest in-range value, instead of silently ignoring it. (do_list): Remove no-longer-needed test for unknown time stamp. 2017-11-06 Paul Eggert misc: diagnose year-2038 configuration problems * bootstrap.conf (gnulib_modules): Add year2038. * m4/.gitignore: Add year2038.m4[ maint: remove IMPORT_FROM_GETTEXT * bootstrap.conf (IMPORT_FROM_GETTEXT): Remove. This is a relic from older Gnulib, and has no effect now. 2017-10-29 Jim Meyering tests/unpack-valid: port to printf that do not grok hex Many versions of printf do not handle hexadecimal in a format string, so this test would fail. * tests/init.cfg (hex_printf_): Copied from grep's tests/init.cfg. * tests/unpack-valid: Use hex_printf_. Reported by Bruno Haible in https://bugs.gnu.org/29033#26 gnulib: update to latest; also update tests/init.sh from gnulib gzip: fix bug with any upper case custom ('-S'-specified) suffix Any user-specified suffix with an upper case letter would fail to match desired file. * gzip.c (get_suffix): First, arrange to have only one return point rather than two. Put a lower-cased (just-malloc'd) copy of z_suffix in the suffix vector, and free it before returning. * tests/upper-suffix: New file. * tests/Makefile.am (TESTS): Add it. * NEWS: Mention it. Reported by meo@xenialab.it in https://bugs.gnu.org/29006 2017-10-16 Paul Eggert gzip: fix bug in unpack EOB check Problem reported by Vidar Holen (Bug#28861). * NEWS: Mention fix. * tests/unpack-valid: New test. * tests/Makefile.am (TESTS): Add it. * unpack.c (build_tree): Report an error if Huffman tree has too few leaves. * unpack.c (unpack): Fix check for EOB. Remove now-unnecessary check for code out of range. 2017-09-19 Jim Meyering maint: fix "make syntax-check": remove useless HAVE_UTIME_H definitions * tailor.h: Don't define HAVE_UTIME_H. maint: avoid "make syntax-check" failure due to old-NEWS modification * cfg.mk (old_NEWS_hash): Update, to reflect recent NEWS correction. 2017-09-19 Paul Eggert gzexe: improve usage diagnostic * gzexe.in (usage): Reword for clarity (Bug#28514). misc: update --version copyright * gunzip.in, gzexe.in, gzip.c, zcat.in, zdiff.in, zforce.in, zgrep.in: * zless.in, zmore.in, znew.in: Update copyright year in --version output to 2017. maint: prefer HTTPS to HTTP, FTP in URLs maint: copy bootstrap from Gnulib maint: port to GCC 7.2 * configure.ac (WERROR_CFLAGS): Avoid -Wduplicated-branches. * tailor.h (FALLTHROUGH): New macro, taken from Emacs. * gzip.c (main): Use it. maint: update .gitignore for recent Gnulib build: update gnulib submodule to latest 2017-05-07 Jim Meyering maint: also distribute a zip-compressed tarball * configure.ac (AM_INIT_AUTOMAKE): Add dist-zip, for those lacking gzip, 7zip, etc. Suggested by Karl Berry in https://bugs.gnu.org/25538. 2017-03-13 Paul Eggert gzip: port zdiff, zless to Busybox Problem reported by Denys Zagorui (Bug#26088). * tests/zdiff: Check that diff uses POSIX-format output. * zless.in (less_version): Don't exit merely because 'less -V' fails; instead, assume 'less' is compatible with an old version of the original 'less'. Busybox 'less -V' fails, but apparently its 'less' works anyway somehow. 2017-02-06 Jim Meyering tests: avoid failure when running with no tty * tests/help-version (zcat_setup): Export TERM=dumb, to avoid zless malfunction. Reported by Assaf Gordon in https://bugs.gnu.org/25636#8 gnulib: update to latest; and tests/init.sh and bootstrap maint: change "time stamp" to "timestamp" globally This avoids a new syntax-check failure. * ChangeLog-2007: Perform that change. * NEWS: Likewise. * algorithm.doc: Likewise. * doc/gzip.texi: Likewise. * gunzip.in: Likewise. * gzip.1: Likewise. * gzip.c: Likewise. * gzip.h: Likewise. * m4/.gitignore: Likewise. * sample/ztouch: Likewise. * tests/timestamp: Likewise. * unzip.c: Likewise. * zip.c: Likewise. * znew.1: Likewise. * cfg.mk: Update the old news hash accordingly. 2017-01-01 Jim Meyering maint: tweak a distcheck rule * dist-check.mk (my-distcheck): Don't use --disable-nls. That option is now unrecognized. maint: update gnulib and copyright dates for 2017 * gnulib: Update to latest. * all files: Run "make update-copyright". 2016-11-08 Jim Meyering maint: use "returns_" rather than explicit comparison with "$?" * tests/zdiff: Use "returns_ 1" rather than testing $? = 1. * tests/hufts: Likewise. * tests/timestamp: Likewise, but s/1/2/. 2016-11-04 Paul Eggert gzip: minor time stamp cleanups * NEWS: Document this. * gzip.c (get_method): Do not warn about MTIME out of range. This should avoid useless chatter on hosts with 32-bit time_t after the year 2038 (!). (do_list): Do not pass junk time stamp to localtime. (copy_stat): Do not report "time stamp restored" if restoration fails. gzip: --no-time cleanup Problem reported by Jim Meyering (Bug#24826). * gzip.c (longopts): Remove non-working no-time entry. (help) [UNDOCUMENTED]: Don't document it. gzip --no-name: avoid spurious warning Problem reported by Jim Meyering (Bug#24826). * tests/timestamp: Add a test from Jim Meyering to exercise the fix * zip.c (zip): Treat unknown time stamps as 0. 2016-10-24 Jim Meyering maint: update .gitignore files to ignore more generated files 2016-10-02 Jim Meyering maint: avoid unwarranted "make syntax-check" failure * tests/timestamp: Reorder "rm" arguments so the doubled-word syntax-check rule does not detect a false positive "in in" here. gnulib: update to latest 2016-09-07 Paul Eggert * doc/gzip.texi: Fix off-by-one timestamp. 2016-09-06 Paul Eggert gzip: fix some Y2038 etc. bugs * NEWS: Document this. * gzip.c (get_method): Warn about out-of-range MTIME, and ignore it instead of relying on possibly-undefined behavior. * tests/Makefile.am (TESTS): Add timestamp. * tests/timestamp: New test. * zip.c (zip): Warn about out-of-range file time stamp. 2016-08-29 Jim Meyering maint: fix gzip-specific syntax-check rule * cfg.mk (sc_gzip_copyright_check): This rule had two problems. It was failing erroneously (the copyright date in gzip.c is fine), yet it was complaining. The first problem is that the rule's diagnostic mentioned the wrong file: lib/version-etc.c, rather than ./gzip.c. The second problem is that it specified this file name via "in_files" rather than the "in_vc_files" variable. 2016-06-12 Paul Eggert gzip: fix port to Atari by not defining ASMV Problem reported by Helmut Karlowski in: http://bugs.gnu.org/23751 * tailor.h (ASMV) [ATARI || atarist]: Do not define. 2016-06-12 Paul Eggert gzip: drop mentions of Amiga, VMS These platforms were not supported anyway, and their code was suffering from bitrot. This patch may also fix some file name glitches on MS-Windowsish platforms. * bootstrap.conf (gnulib_modules): Add dosname. * gzip.c: Include dosname.h. (shorten_name, treat_dir): Use last_component rather than looking at path separators by hand. * tailor.h: Remove sections on porting to VMS and to Amiga, since dosname.h doesn't support these platforms anyway. (PATH_SEP2, PATH_SEP3, STDC_HEADERS, SUFFIX_SEP, RECORD_IO) (HAVE_CHOWN, HAVE_LSTAT, HAVE_SYS_DIR_H, direct): Remove. All uses removed. Many uses replaced by calls to ISSLASH and/or last_component. 2016-04-29 Jim Meyering maint: arrange for better URLs in generated announcement message * cfg.mk (url_dir_list): Define. I had been correcting the generated URLs by hand, just before the announcement. This is better. 2016-04-26 Jim Meyering maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.8 * NEWS: Record release date. gnulib: update to latest 2016-04-19 Paul Eggert gzip: simplify by closing ourselves This simplifies the previous fix, by avoiding the use of the closein module. That module was problematic, as gzip normally does not use stdio for output and never uses it for input. Also, it is a heavyweight module, as it drags many files into lib (c-ctype.c, c-ctype.h, closein.c, closein.h, closeout.c, closeout.h, close-stream.c, close-stream.h, config.charset, c-strcasecmp.c, c-strcaseeq.h, c-strcase.h, c-strncasecmp.c, fpending.c, fpending.h, freadahead.c, freadahead.h, localcharset.c, localcharset.h, mbrtowc.c, mbsinit.c, quotearg.c, quotearg.h, quote.h, ref-add.sin, ref-del.sin, streq.h, wctype-h.c, wctype.in.h) and into m4 (closein.m4, closeout.m4, close-stream.m4, codeset.m4, configmake.m4, fpending.m4, freadahead.m4, glibc21.m4, localcharset.m4, locale-fr.m4, locale-ja.m4, locale-zh.m4, mbrtowc.m4, mbsinit.m4, mbstate_t.m4, quotearg.m4, wctype_h.m4), and these files are thus no longer needed. * bootstrap.conf (gnulib_modules): Remove closein. * gzip.c: Don't include closein.h. (stdin_was_read): New static var. (main): Don't use close_stdin. Invoke finish_out to exit after outputting via stdio's stdout. Close stdin after reading it. Restore previous way of closing stdout. (treat_stdin): Record that stdin was read. (finish_out): New function. gzip: fix bug with -l output to pipes Problem reported by Christian Franke via Eric Blake in: http://bugs.gnu.org/23314 * NEWS: Mention this. * gzip.c (main): Do not close stdout twice when given -l. Instead, -l now just fflushes stdout, so that fdatasync can synchronize it if --synchronize is also specified. * tests/list: New test case. * tests/Makefile.am (TESTS): Add it. 2016-03-28 Paul Eggert Port to Oracle Solaris Studio 12.4 Problem reported by Kiyoshi KANAZAWA in: http://bugs.gnu.org/23133 * NEWS: Document this. * configure.ac (ASMV): Do not define if NO_ASM is anywhere in DEFS; it doesn't need to be surrounded by white space. * lib/match.c: Do not use x86 version if __x86_64__ is defined. 2016-03-27 Jim Meyering maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.7 * NEWS: Record release date. 2016-03-26 Paul Eggert Port to NetBSD 7.0 Problem reported by Assaf Gordon in: http://bugs.gnu.org/23107#13 * gzexe.in, zdiff.in, zgrep.in: Don't rely on mktemp -t, as it has a different meaning in NetBSD. * tests/init.sh: Sync from Gnulib. Port to Alpine Linux which uses Busybox * Makefile.am (check-local): Use plain diff rather than 2016-03-24 Jim Meyering gzip: also honor GZIP=--rsyncable * gzip.c (main): Also accept --rsyncable when it is specified via the GZIP environment variable. I noticed this when gzip's "make dist" failed because maint.mk detected that gzip now honors --rsyncable, yet when it set GZIP_ENV to include that, and that propagated via automake-generated code to the GZIP setting used in the "make dist" rule, there, it was not honored, and caused "make dist" to fail. 2016-03-21 Paul Eggert Fix typo in previous patch Port to Solaris 11 /bin/sh * m4/shell.m4 (AC_PROG_SHELL): Reject Solaris 11 /bin/sh. A problem was reported by Nelson H. F. Beebe for OpenIndiana. I reproduced a problem with different symptoms on Solaris 11. Switching to Bash fixed it, and I hope this fixes it for OpenIndiana too, since both problems appear to be shell-related. 2016-03-18 Paul Eggert zgrep: with -f SPECIAL, read SPECIAL just once Problem reported by Fulvio Scapin in: http://bugs.gnu.org/22945 * NEWS: Document this. * tests/zgrep-f: Add a test. Adjust a test to cover the case of more than one line in -f's input. * zgrep.in (with_filename): With -f FILE, if FILE is stdin or not a regular file, copy it into a temporary and use the temporary. 2016-03-15 Paul Eggert gzip: port to AIX 7.1 + xlc V12.1 * inflate.c, unlzw.c, util.c: Include tailor.h after including any system include file that might in turn include signal.h for the first time, so that SIGPIPE is not #defined to 0 prematurely, which clashes with signal.h's SIGPIPE. 2016-03-15 Jim Meyering gnulib: update to latest maint: don't ignore gitlog-to-changelog failure * Makefile.am (gen-ChangeLog): Don't ignore failure of gitlog-to-changelog. This syncs to coreutils' copy of this rule. 2016-03-06 Paul Eggert gzip: pacify clang * gzip.c (do_list): Use 2D array of char for month abbreviations, as this is clearer anyway, and it pacifies Clang. Problem reported by Assaf Gordon in: http://bugs.gnu.org/22900#40 2016-03-06 Jim Meyering tests: port to systems for which ":" is not the PATH separator * Makefile.am (new_path): New variable. (check-local): Use $(PATH_SEPARATOR) rather than a literal ":", to avoid "make syntax-check" failure. 2016-03-06 Paul Eggert doc: minor --rsyncable doc fixes * doc/gzip.texi (Sample): Mention --rsyncable. * gzip.c (help): Sort and do not capitalize the new --rsyncable help string. gzip: minor zgrep cleanup * zgrep.in: Simplify previous change. gzip: port zgrep to Solaris 11.2 Problem reported by Assaf Gordon in: http://bugs.gnu.org/22900#11 * zgrep.in: Port to Solaris 11.2 /bin/sh (ksh 93u 2011-02-08), where $? is 256+SIG when a process was killed with signal SIG, and where 'exit 257' is equivalent to 'exit 1'. Apparently some other sh implementations use 256+128+SIG. So, instead of using plain 'exit $?', use the equivalent of 'exit ((128 * (128 <= $?)) + $? % 128)' within the script, and use the equivalent of 'kill -$($? % 128)' at the top level if the exit status is 128 or more. gzip: remove --__bindir * NEWS: Document this. * gzexe.in, gunzip.in, zcat.in, zcmp.in, zdiff.in, zegrep.in: * zfgrep.in, zforce.in, zgrep.in, zless.in, zmore.in, znew.in: Remove support for undocumented --__bindir option. Callers can set PATH instead; that's less error-prone. This fixes some 'make check' failures on my Solaris 11 box, which occurred because the test scripts were mistakenly testing the installed gzip rather than the gzip in the working directory. * Makefile.am (.in): Don't replace bindir. (check-local): Set PATH instead of using --__bindir. * tests/help-version (gunzip_setuphelp, gzexe_setuphelp) (zcat_setuphelp, zcmp_setuphelp, zdiff_setuphelp) (zegrep_setuphelp, zfgrep_setuphelp, zforce_setuphelp) (zgrep_setuphelp, zless_setuphelp, zmore_setuphelp) (znew_setuphelp): Remove. All uses removed. (lbracket_setup): Default args to empty. 2016-03-04 Jim Meyering tests: fix "make check" failure on AIX 7.1 * tests/Makefile.am (TESTS_ENVIRONMENT): Modernize: remove unused shell_or_perl_ function, and use an export_with_values function as grep does, to remove a lot of duplication. Reported by Assaf Gordon in http://debbugs.gnu.org/22900 2016-03-02 Rusty Russell gzip: support the --rsyncable option * deflate.c: Include verify.h. (RSYNC_WIN, RSYNC_SUM_MATCH): Define. (rsync_sum, rsync_chunk_end): Declare file-scoped globals. (lm_init): Initialize globals. (fill_window): Update rsync_chunk_end. (rsync_roll): New function. (RSYNC_ROLL): New macro. (FLUSH_BLOCK): Update for new "pad" parameter. (deflate_fast): Use RSYNC_ROLL and flush/pad. (deflate): Likewise. * trees.c (flush_block): Add "pad" parameter. * gzip.c (rsync): New global. (RSYNCABLE_OPTION, longopts, help): Add the option. (main): Set the new global. * gzip.h (rsync): Declare new global. (flush_block): Update prototype. * doc/gzip.texi: Document it. * gzip.1: Likewise. * bootstrap.conf: Use verify module. * NEWS (New feature): Mention it. * Makefile.am (check-local): Add tests and use AM_V__* command- hiding opions. Reported against Debian here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=118118 2016-02-28 Jim Meyering maint: dist-check.mk: remove .deps dirs before comparing "make distcheck" with automake-from-trunk would fail like this: ... Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old: .deps Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib: .deps Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib/glthread: .deps * dist-check.mk (my-distcheck): Remove all .deps directories before comparing the two hierarchies. 2016-02-28 Paul Eggert misc: update --version copyright * gunzip.in, gzexe.in, zcat.in, zdiff.in, zforce.in, zgrep.in: * zless.in, zmore.in, znew.in: Update copyright year in --version output to 2016. gzip: new option --synchronous This follows up on the earlier patch to avoid data loss near the system crashes. It makes the new behavior optional, with the default off. See: http://bugs.gnu.org/22768 * NEWS, doc/gzip.texi (Sample, Invoking gzip), gunzip.in (usage): * gzip.1, zcat.in (usage): Document this. * gzip.c (synchronous): New static var. (SYNCHRONOUS_OPTION): New constant. (longopts, help, main, treat_file): Add support for --synchronous. gzip: use constants, not fileno * gzip.c (main, treat_stdin, treat_file, get_method) (check_ofname): Prefer STDIN_FILENO to fileno (stdin), and similarly for STDOUT_FILENO. gzip: fdatasync output dir before unlinking This follows up on the earlier patch to avoid data loss near the system crashes. See: http://bugs.gnu.org/22768 * bootstrap.conf (gnulib_modules): Add dirname-lgpl, fdatasync, openat-safer, unistd-safer, unlinkat. * gzip.c: Include stddef.h, dirname.h. Include fcntl--.h instead of fcntl-safer.h. (RW_USER): Remove; no longer needed. (dfname, dfd): New static vars. (dot): New static const. (atdir_eq, atdir_set): New functions. (treat_file): Also fdatasync the output directory, if !keep. (treat_file, create_outfile, open_and_stat): Use dir fd for unlinkat and openat, if possible. (open_and_stat): Omit mode argument, since it was always the same. All callers changed. * lib/.gitignore, m4/.gitignore: Add new gnulib files. * tailor.h (PROTO, NO_STDIN_FSTAT, OPEN): Remove. Remove MACOS section, as this stuff would not work anyway now, and circa 2001 Apple stopped supporting Mac OS 9 and earlier. * zip.c: Do not include unistd.h and fcntl.h, as this file does not directly use any symbols defined by those headers. 2016-02-22 Paul Eggert fsync output file before closing Problem reported by Yanyan Jiang 蒋炎岩 in: http://bugs.gnu.org/22768 * NEWS: Document this. * bootstrap.conf (gnulib_modules): Add fsync. * gzip.c (treat_file): Call fsync just before closing the output. * lib/.gitignore, m4/.gitignore: Add fsync-related gnulib files. 2016-01-22 Jason Leschnik doc: correct a diagnostic in man page to match actual * gzip.1: s/no change/unchanged/ This addresses http://debbugs.gnu.org/22413 2016-01-01 Jim Meyering maint: update copyright year, bootstrap, init.sh Run "make update-copyright" and then... * gzip.c: Transform the copyright notice via s/2015/2016/. * gnulib: Update to latest. * tests/init.sh: Update from gnulib. * bootstrap: Likewise. 2015-11-01 Jim Meyering maint: avoid three warnings from the very latest gcc-built-from-git * unzip.c (unzip): Correct two format strings to match the types of the corresponding arguments. * unlzw.c (unlzw): Cast an "int" to unsigned to match expected type of %x. 2015-08-24 Jim Meyering maint: adjust copyright notices in *.in files to be consistent The copyright year ranges in *.in files were not being updated, because of a missing ", Inc." suffix. Add that, run run "make udpate-copyright", and ensure 2010..2015 year ranges are covered. * gunzip.in: Update copyright notice and year ranges. * gzexe.in: Likewise. * zcat.in: Likewise. * zdiff.in: Likewise. * zforce.in: Likewise. * zgrep.in: Likewise. * zless.in: Likewise. * zmore.in: Likewise. * znew.in: Likewise. 2015-08-24 Jim Meyering build: avoid -Wshift-negative-value warning Configured with --enable-gcc-warnings, a gcc-6.x build would fail with this: gzip.c:118:32: error: left shift of negative value #define OFF_T_MIN (~ (off_t) 0 << (sizeof (off_t) * CHAR_BIT - 1)) * gzip.c [OFF_T_MAX]: Define in terms of TYPE_MAXIMUM, not OFF_T_MIN. [OFF_T_MIN]: Remove now-unused definition. Include "intprops.h" for definiton of TYPE_MAXIMUM. * bootstrap.conf (gnulib_modules): Add intprops. 2015-07-30 Jim Meyering maint: remove dead code This package has not been compilable with -DCRYPT since commit v1.4-82-g9d1b943. Remove final vestiges. * bits.c (copy_block) [CRYPT]: Remove #ifdef'd code. * inflate.c (NEXTBYTE) [CRYPT]: Likewise. Prompted by a report from Flávio Medeiros that HEADER and T might be used uninitialized. 2015-03-17 Paul Eggert gzip: make the GZIP env var obsolescent * NEWS, gzip.1: * doc/gzip.texi (Environment, Tapes): Document this. * gzip.c (args): Remove static var; no longer needed now that 'main' frees it. All uses removed. (ENV_OPTION, shortopts): New constants. (main): Warn about nontrivial uses of GZIP. Reject dangerous uses. * tests/gzip-env: New test case. * tests/Makefile.am (TESTS): Add it. * util.c (add_envopt): Create new vector instead of adding to old one. Only use changed. 2015-03-13 Paul Eggert maint: adjust to recent gnulib * doc/.gitignore: Add gendocs_template_min. * lib/.gitignore: Add assure.h. 2015-02-08 Jim Meyering maint: ensure that --version's copyright date is current * cfg.mk (sc_gzip_copyright_check): Ensure we keep this copyright year number up to date. Reported by Paul Eggert. * gzip.c (license_msg): Include only the current year number, as is done in nearly every other program. gnulib: update to latest 2015-01-01 Jim Meyering maint: update copyright year ranges to include 2015; update gnulib 2014-11-10 Jim Meyering maint: move new NEWS entry into block for upcoming release * NEWS: Move the latest NEWS entry from the block for gzip-1.6 into the block for the upcoming release. 2014-11-10 Paul Eggert gzip: adjust -v output when -k is also specified Problem reported by Eric Benoit in: http://bugs.gnu.org/16401 * gzip.c (treat_file): When keeping a file, don't say it's replaced. * NEWS: Document this. * tests/keep: Test this. 2014-11-10 Jim Meyering maint: enable more syntax checks * cfg.mk (local-checks-to-skip): Remove several rule names from this list, thus enabling the corresponding checks. To fix some, I made syntactic changes to source files. In other cases, I exempted certain files from the checks. Add exemptions for these: sc_prohibit_atoi_atof = ^(gzip|sample/sub)\.c$$ sc_space_tab = ^lib/match\.c$$ sc_useless_cpp_parens = ^(lib/match\.c|tailor\.h)$$ * configure.ac: Add quotes to fix under-quoting. * deflate.c: Remove unnecessary cpp parentheses. * tests/Makefile.am (TEST_ENVIRONMENT): Remove space-before-TAB. * unlzw.c: Change some TABs to spaces. maint: avoid false positive match in check for double semicolon * cfg.mk (exclude_file_name_regexp--sc_prohibit_double_semicolon): Exempt the file, lib/match.c, from gnulib's new double-semicolon check. gnulib+bootstrap: update to latest * gnulib: Update the submodule. * bootstrap: Update from gnulib. 2014-10-10 Paul Eggert tests: use local dir for output Reported by Kiyoshi KANAZAWA in: http://bugs.gnu.org/18679 * tests/unpack-invalid: Use local directory, not /tmp, for output. 2014-08-10 Paul Eggert gzip: fix --suffix=z bug (Bug#18239) * gzip.c (get_suffix): Put --suffix string at the end of the list of suffixes if it is a suffix of one one them. * tests/z-suffix: New file. * tests/Makefile.am (TESTS): Add it. 2014-06-12 Paul Eggert zgrep: exit with status 0 if a file matches and there's no trouble Reported by Pavel Raiskup in: http://bugs.gnu.org/17760 * zgrep.in (res): Treat exit status 0 to be greater than 1. Also, exit immediately on software configuration error. 2014-06-07 Paul Eggert doc: use UTF-8 in the manual * doc/gzip.texi: Switch to UTF-8 encoding. Fix ASCIIisms. Don't use @sc; plain caps are fine for GNU manuals. maint: update .gitignore files * lib/.gitignore, m4/.gitignore: Adjust to match current sources. Also, sort. 2014-06-07 Jim Meyering maint: udpate all copyright notices via "make update-copyright" maint: update copyright year range in gzip.texi * doc/gzip.texi: Update copyright date. maint: update gnulib to latest and adapt streamsavedir usage * gnulib: Update module to latest. * gzip.c (treat_dir): Gnulib's streamsavedir API has changed: call it with a new argument, SAVEDIR_SORT_NONE, to retain the preceding behavior. 2014-03-06 Paul Eggert zless: improve gzip failure checking, and port to new -V format Problem reported by Jaroslaw Weglinski, and LESSOPEN change suggested by Mark Nudelman, in: http://bugs.gnu.org/16951 This doesn't fix bug 16951 entirely, as 'less' needs to be changed too, but it's a start. * zless.in (check_exit_status): New var. (LESSOPEN): Use it. (use_input_pipe_on_stdin): Adjust to output format on Fedora 20, where 'less -V' outputs "less 458 (POSIX regular expressions)" on the first line. 2013-10-24 Paul Eggert gzip: fix permissions issue on Solaris-like systems I.e., on systems that let users give files away. * gzip.c (do_chown): New function. (copy_stat): Use it, to change the group, then the permissions, then the owner. Idea suggested by Vladimir Marek in 2013-10-03 Paul Eggert znew: avoid denial-of-service issue Reported by Rich Burridge in . * znew.in: Rewrite to avoid the need for a temporary file in /tmp. That way, we avoid the need for set -C and worrying about denial of service. Use touch -r and chmod --reference rather than cpmod. Assume cp -p works, as it's now universal. Quote 'echo' args better, while we're at it. (warn, tmp, cpmod, cpmodarg): Remove. (GZIP): Unset, so that we needn't test for gzip extension. (ext): Now always '.gz'. * znew.1: Document the change of implementation assumptions. 2013-06-19 Paul Eggert Fix spelling typo in newly-added comment. tests: zgrep-signal race condition fix * tests/zgrep-signal: Check that Perl supports dup2. (exec_with_SIGPIPE_SIGDFL): Remove. (write_to_dangling_pipe): Simplify by moving more of it into Perl. Fix race condition, where subcommand writes to a pipe before the ":" command exits. Problem reported by Thorsten Glaser in . 2013-06-12 Paul Eggert zgrep: usage should say which grep options are not supported * zgrep.in (usage): Document which grep options are not supported. Problem reported by Liron Paryente in . 2013-06-11 Paul Eggert gzip: port util.c to Compaq C V6.5-303 * util.c (crc_32_tab): Move definition to front, since this compiler doesn't allow declarations of static arrays with incomplete types. Problem reported by Steven M. Schweda in . tests: zgrep-context assumes grep knows context * tests/Makefile.am (TESTS_ENVIRONMENT): Pass GREP too. * tests/zgrep-context: Check that the underlying grep supports context options. Problem reported by Steven M. Schweda in . doc: zgrep exit status, unsupported options * zgrep.1 (EXIT STATUS, BUGS): New sections. Problem reported by Bdale Garbee in . maint: port to platforms lacking SIGPIPE * tailor.h (SIGPIPE): Define to 0 if not defined. This fixes a porting bug introduced as part of 2012-11-16 syntax-check cleanup. Problem reported by Bdale Garbee in . 2013-06-09 Jim Meyering maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.6 * NEWS: Record release date. build: avoid automake warning that suggests use of subdir-objects * configure.ac (AM_INIT_AUTOMAKE): Use the subdir-objects option. build: avoid warning about deprecated use of automake's ACLOCAL_AMFLAGS * Makefile.am (ACLOCAL_AMFLAGS): Don't use this deprecated variable. * configure.ac: Do this instead: AC_CONFIG_MACRO_DIR([m4]). build: use more portable shell syntax in search of working shell * m4/shell.m4: Adjust sh/case syntax not to evoke a syntax error from Solaris 10's /bin/sh. build: update gnulib to latest, and bootstrap 2013-05-28 Jim Meyering tests: exercise the new --keep option * tests/keep: New file. * tests/Makefile.am (TESTS): Add it. 2013-05-28 Rodrigo Campos gzip: add "--keep" option to retain (don't delete) input files gzip now accepts the --keep (-k) option, for consistency with tools like xz, lzip and bzip2. With this option, gzip no longer removes named input files when compressing and decompressing. * doc/gzip.texi: Document it. * gzip.1: Likewise. * gunzip.in: Likewise. * NEWS: Likewise. * gzip.c: Add support for "--keep". 2013-04-15 Paul Eggert tests: redo patch for non-GNU gzip installed in /usr/local/bin Problem with previous patch reported by Antonio Diaz Diaz in . * tests/help-version (gunzip_setuphelp, gzexe_setuphelp) (zcat_setuphelp, zcmp_setuphelp, zdiff_setuphelp) (zegrep_setuphelp, zfgrep_setuphelp, zforce_setuphelp) (zgrep_setuphelp, zless_setuphelp, zmore_setuphelp) (znew_setuphelp): New functions, used when testing even --help. (zdiff_setup, zcat_setup, znew_setup, zgrep_setup, gzexe_setup): Use gzip_setuphelp to set --__bindir. 2013-04-10 Paul Eggert tests: work even if non-GNU gzip is installed in /usr/local/bin Problem reported by Antonio Diaz Diaz in . * tests/help-version (zdiff_setup, zcat_setup, znew_setup, zgrep_setup) (gzexe_setup): Pass --__bindir so that subsidiary programs are our own's, not /usr/local/bin's. This requires using 'eval' on the result. (zcmp_setup, gunzip_setup, zmore_setup, zless_setup, zforce_setup) (zegrep_setup, zfgrep_setup): Invoke one of the other setup functions, to make the patterns more obvious and simplify future maintenance. * zcmp.in, zegrep.in, zfgrep.in: Pass __bindir to subsidiary program. maint: adjust to Gnulib, Automake changes * .gitignore: Add *.trs. * lib/.gitignore: Add unused-parameter.h. tests: port to Solaris 10 /bin/sh * tests/Makefile.am (TESTS_ENVIRONMENT): Use "FOO=val; export FOO" rather than "export FOO=val", as the latter form doesn't work with Solaris /bin/sh. 2013-02-25 Paul Eggert gzip: port to DMF file systems * util.c (read_buffer): When reading a file with O_NONBLOCK, if the read fails with errno==EAGAIN, clear O_NONBLOCK and try again. Problem reported by Vitezslav Cizek in . 2013-02-05 Paul Eggert gzip: fix bug where you say "n" and gzip acts as if you said "y" Problem reported for GCC 4.7 x86-64 -O2 by Allan McRae in . * NEWS: Document this. Use consistent format in earlier note. * gzip.c: Include yesno.h. * gzip.h (yesno): Remove decl; that's yesno.h's job. 2013-01-06 Paul Eggert maint: adjust to Gnulib changes * lib/.gitignore: Add glthread, math.c, unistd.c, wctype-h.c. * m4/.gitignore: Remove inline.m4. 2013-01-04 Jim Meyering maint: update all copyright year number ranges Run "make update-copyright". build: update gnulib submodule to latest 2012-12-10 Paul Eggert diagnose unexpected EOF and zero lengths in packed data Problem reported by Aki Helin. * NEWS: Mention Aki's reports. * tests/unpack-invalid: New file, with test data suggested by Aki. * tests/Makefile.am (TESTS): Add it. * unpack.c (read_byte): New function. (look_bits, read_tree): Use it. (read_tree): Check against zero bit length Huffman code. gzip: diagnose invalid code in packed data * unpack.c (unpack): When encountering a code out of range, report it and fail rather than charging ahead with randomish output. Problem reported by Aki Helin. 2012-11-16 Jim Meyering maint: avoid new syntax-check failures * cfg.mk (_gl_TS_unmarked_extern_vars): Append nice_match, to avoid false-positive syntax-check failure on i686. * gzip.c (SIGPIPE): Remove definition. Now always provided via gnulib. * lib/.gitignore: xsize.c, added by gnulib-tool. 2012-11-16 Paul Eggert gzip: fix debugging/porting typo * unlzw.c (unlzw) [DEBUG]: Don't assume 'long' can be printed with %d. maint: merge build improvements from coreutils * configure.ac: Invoke gl_ASSERT_NO_GNULIB_POSIXCHECK. (--enable-gcc-warnings): Change help message. (gl_GCC_VERSION_IFELSE): New macro. Do not omit -Wunused-macros for main code. Adjust other -W options as per coreutils. * lib/Makefile.am (AM_CFLAGS): Use GNULIB_WARN_CFLAGS, not WARN_CFLAGS. * unlzw.c (REGISTERS, REG1, REG2, ..., REG16): Remove. All uses removed. These provoked -Wunused-macros warnings. This sort of fiddling with registers hasn't been needed for years. build: update gnulib submodule to latest maint: port to platforms lacking SIGPIPE * gzip.c (SIGPIPE): Define to 0 if not already defined. doc: bring up to date and fix troff typos * doc/gzip.texi (Overview): Update RFC URLs. * gzip.1: Likewise. Don't say "SEE ALSO" to programs that almost nobody has installed anymore. * gzip.1, zmore.1: Fix some troff typos. * zdiff.1: Clarify what happens with input files. Don't talk about temporary file names, as they're rarely used these days. 2012-10-24 Paul Eggert tests: exercise the grep -e portability fix Remove workaround for Solaris, since the bug should be fixed now. Suggested by Petr Sumbera in . * tests/zgrep-context, tests/zgrep-f: All uses removed. * tests/init.cfg (require_POSIX_grep_): Remove. 2012-10-23 Eric Blake build: default to --enable-gcc-warnings in a git tree Anyone building from cloned sources can be assumed to have a new enough environment, such that enabling gcc warnings by default will be useful. Tarballs still default to no warnings, and the default can still be overridden with --disable-gcc-warnings. * configure.ac (gl_gcc_warnings): Set default based on environment. 2012-10-20 Paul Eggert zgrep: do not assume standard 'grep' has -e On Solaris 11, /usr/bin/grep -e does not work. Problem reported by Petr Sumbera in . * Makefile.am (.in): Substitute @GREP@. * configure.ac (AC_PROG_GREP): Invoke. * zgrep.in (grep): Use @GREP@. 2012-08-14 Paul Eggert zgrep: do not assume GNU expr * zgrep.in: Do not assume '\+' has the GNU behavior in the BRE given to 'expr', as POSIX does not guarantee that. Come to think of it, use a shell pattern rather than 'expr', as this is more efficient. 2012-08-08 Jim Meyering tests: exercise the just-fixed part of zgrep * tests/zgrep-context: New file. * tests/Makefile.am (TESTS): Add it. 2012-08-08 Jim Meyering zgrep: handle a multi-digit context option like -15 * zgrep.in: Do not malfunction when given an option like -15. Before, it could end up treating the pattern as a file name: $ echo x | gzip | zgrep -15 x gzip: x.gz: No such file or directory * NEWS (Bug fixes): Mention it. Reported by Dan Bloch via Thomas Bushnell in https://bugs.launchpad.net/bugs/1032831 2012-08-07 Jim Meyering build: update gnulib, bootstrap and init.sh maint: fix misspellings in old ChangeLog and NEWS * ChangeLog-2007: s/Supress/Suppress/ * NEWS: Likewise. * cfg.mk (old_NEWS_hash): Update to match typo fix. 2012-06-19 Paul Eggert zmore: rewrite to fix bugs and assume POSIX Problem reported for Solaris 9 by Daniel in . Rather than figure out what exactly went wrong in Solaris 9 it was easier to rip out all the buggy compatibility and stty cruft. * zmore.in: Don't use stty or trap; simply pipe the output to 'more' and let it deal with signals and terminal control. Use printf, not 'echo', to avoid problems with backslashes. Don't assume ANS is not 's' in the environment. Use a 'more'-style header instead of rolling our own style. Paginate the header, too; the old behavior lost the header. * NEWS, zmore.1: Document this. 2012-06-17 Jim Meyering maint: add .mailmap * .mailmap: New file. Unify two spellings of Paul's name, to make git log output slightly cleaner. maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.5 * NEWS: Record release date. build: update gnulib for fixed maint.mk build: update gnulib submodule; bootstrap and init.sh, too * cfg.mk: Exempt crufty tailor.h from its use of "#define off_t...". * .gitignore, m4/.gitignore: Update semi-automatically (via bootstrap). 2012-04-24 Paul Eggert doc: document -rf change * NEWS: Document the ZFS fix. gzip: remove CLOSEDIR * gzip.c (CLOSEDIR): Remove; no longer used. gzip: port gzip -rf to ZFS Problem reported privately by Rich Burridge. * bootstrap.conf: Add savedir. * gzip.c: Include . (_D_EXACT_NAMELEN): Remove. (treat_dir): Use savedir rather than reading directory entries one at a time, to avoid revisiting an already-compressed file when using ZFS and the -rf flags are specified. * lib/.gitignore, m4/.gitignore: Ignore savedir-related files. 2012-03-18 Paul Eggert gzip: fix nondeterministic compression results Reported by Jakub Wilk in . * deflate.c (fill_window): Don't let garbage pollute the dictionary. 2012-01-11 Jim Meyering tests: make all test scripts executable; work with automake-1.12 * tests/Makefile.am (TESTS_ENVIRONMENT): Adapt to work with upcoming automake-1.12. * tests/mixed: Make executable. * tests/zgrep-f: Likewise. * tests/zgrep-signal: Likewise. * tests/znew-k: Likewise. build: accommodate newer bootstrap from gnulib * bootstrap.conf (gnulib_tool_option_extras): Add both --symlink and --makefile-name=gnulib.mk. * bootstrap: Update from gnulib. * tests/init.sh: Update from gnulib. * lib/Makefile.am: Initialize all of the following so that generated code in gnulib.mk may use += to append to those variables: AM_CFLAGS, BUILT_SOURCES, CLEANFILES, EXTRA_DIST, MOSTLYCLEANDIRS, MOSTLYCLEANFILES, SUFFIXES, noinst_LTLIBRARIES. 2012-01-01 Jim Meyering maint: update all copyright year number ranges Run "make update-copyright". 2011-12-21 Paul Eggert zless: decompress stdin too, if less 429 or later * zless.in: Use LESSOPEN |- feature of less 429 or later. Problem reported by Jeroen Roovers via Mike Frysinger in . 2011-11-29 Jim Meyering build: update gnulib submodule to latest build: accommodate gnulib's new warnings with --enable-gcc-warnings * configure.ac (WERROR_CFLAGS): Disable two new warnings: -Wno-format-nonliteral, -Wno-unsuffixed-float-constants. * gzip.h (bi_reverse): Declare with _GL_ATTRIBUTE_CONST. (gzip_base_name): Declare with _GL_ATTRIBUTE_PURE. 2011-11-29 Jim Meyering tests: use "compare exp out", not "compare out exp" Likewise, when an empty file is expected, use "compare /dev/null out", not "compare out /dev/null". I.e., specify the expected/desired contents via the first file name. Prompted by a suggestion from Bruno Haible in http://thread.gmane.org/gmane.comp.gnu.grep.bugs/4020/focus=29154 Run these commands: git grep -l -E 'compare [^ ]+ exp' \ |xargs perl -pi -e 's/\b(compare) (\S+) (exp\S*)/$1 $3 $2/' git grep -l -E 'compare [^ ]+ /dev/null' \ |xargs perl -pi -e 's,\b(compare) (\S+) (/dev/null),$1 $3 $2,' 2011-11-05 Jim Meyering build: update gnulib submodule to latest 2011-11-02 Paul Eggert * tests/zgrep-signal: Don't assume exit status 141 on PIPE signal. Problem reported by Eric Blake in . * tests/zgrep-signal: Use perl instead of a nonportable shell trap. Problem reported by Eric Blake in . * tests/zgrep-signal: Test for Fedora 15 signal bug. Also, don't assume that SIGPIPE is SIG_DFL on entry. 2011-11-02 Jim Meyering build: update gnulib submodule to latest tests: mixed: correct size-enumeration logic * tests/mixed (sizes): Fix misplaced "&& break" that made us test only with a size of 0, rather than all sizes in 0..64. maint: avoid "make syntax-check" failure * gzip.c (treat_stdin): Indent with spaces, not TABs. 2011-11-02 Paul Eggert * gzip.c (treat_stdin): If quiet, be quiet with plain gzip -q. Problem reported by Michaël Guitton in . 2011-08-10 Jim Meyering maint: remove amiga, atari, msdos, nt, os2, vms sub-directories, and all files therein. This was proposed months prior, and no one objected. * amiga/Makefile.gcc: Remove file. * amiga/Makefile.sasc: Likewise. * amiga/match.a: Likewise. * amiga/tailor.c: Likewise. * amiga/utime.h: Likewise. * atari/Makefile.st: Likewise. * msdos/Makefile.bor: Likewise. * msdos/Makefile.djg: Likewise. * msdos/Makefile.msc: Likewise. * msdos/doturboc.bat: Likewise. * msdos/gzip.prj: Likewise. * msdos/match.asm: Likewise. * msdos/tailor.c: Likewise. * nt/Makefile.nt: Likewise. * os2/Makefile.os2: Likewise. * os2/gzip.def: Likewise. * os2/gzip16.def: Likewise. * vms/Makefile.gcc: Likewise. * vms/Makefile.mms: Likewise. * vms/Makefile.vms: Likewise. * vms/Readme.vms: Likewise. * vms/gzip.hlp: Likewise. * vms/makegzip.com: Likewise. * vms/vms.c: Likewise. * Makefile.am (EXTRA_DIST): Remove those file names. build: use largefile module and update to latest gnulib * configure.ac: Remove AC_SYS_LARGEFILE, subsumed by ... * bootstrap.conf (gnulib_modules): ...this. Use largefile module. * gnulib: Update to latest. 2011-07-12 Jim Meyering maint: update init.sh and bootstrap from gnulib * bootstrap: Update from gnulib. * tests/init.sh: Update from gnulib. maint: use gnulib's realloc-gnu and malloc-gnu modules * bootstrap.conf (gnulib_modules): Use realloc-gnu and malloc-gnu, rather than the now-deprecated realloc and malloc modules. build: update gnulib submodule to latest 2011-06-21 Paul Eggert * deflate.c: Export nice_match to assembler. (static_unless_ASMV): New macro. (nice_match): Use it. 2011-06-08 Jim Meyering build: fix "make syntax-check" * cfg.mk (_gl_TS_unmarked_extern_vars): Add good_match. build: avoid link failure: this time on i686 linux * deflate.c (good_match): Must not be static, since it may be used from lib/match.c. 2011-05-14 Jim Meyering build: avoid link failure on at least i386-FreeBSD7.2 * deflate.c (match_start, prev_length, max_chain_length): Do not declare these as static. On some types of system/arch, they are used via match_.s. * cfg.mk (_gl_TS_unmarked_extern_vars): Mark those three variables as known-extern: match_start, prev_length, max_chain_length. 2011-05-13 Jim Meyering avoid new build failure on a system without * bits.c: Don't include "crypt.h", now that it's deleted. maint: use gnulib's new readme-release module * bootstrap.conf (gnulib_modules): Add readme-release. (bootstrap_epilogue): Add the recommended perl one-liner. * README-release: Remove file; it is now generated from gnulib. * .gitignore: Add it. 2011-05-09 Jim Meyering build: update gnulib submodule to latest maint: prepare for gnulib's new tight-scope syntax-check rule * cfg.mk (_gl_TS_dir): Define. (_gl_TS_unmarked_extern_vars): Define. maint: declare many variables to be static * deflate.c: Likewise. * gzip.c: Likewise. * gzip.h: Likewise. * inflate.c: Likewise. * trees.c: Likewise. * unzip.c: Likewise. * util.c: Likewise. maint: remove crypt.[ch] stubs * Makefile.am (gzip_SOURCES): Remove crypt.c (EXTRA_DIST): Remove crypt.h * crypt.c, crypt.h: Remove files. * unpack.c: Don't #include "crypt.h" * zip.c: Likewise * util.c: Likewise. * unzip.c: Likewise. maint: limit scope of several functions * deflate.c (longest_match): Move extern declaration into #if-ASMV block. [!ASMV]: Define as static. * inflate.c: Remove unnecessary prototypes. ANSI-declify functions and declare them to be static. maint: remove all uses of OF((...)) prototype-hiding macro * bits.c: Remove all uses of OF. * deflate.c: Likewise. * gzip.c: Likewise. * inflate.c: Likewise. * lzw.h: Likewise. * trees.c: Likewise. * unlzh.c: Likewise. * unpack.c: Likewise. * util.c: Likewise. * gzip.h: Likewise. (OF): Remove its definition, too. maint: prepare for tight-scope rule: use noinst_HEADERS * Makefile.am (EXTRA_DIST): Move lzw.h and gzip.h from here to ... (noinst_HEADERS): ...here. For convenience, since the tight-scope rule uses $(noinst_HEADERS). 2011-04-14 Jim Meyering maint: update bootstrap and init.sh from gnulib * bootstrap: Likewise. * tests/init.sh: Update from gnulib. maint: note that we'll remove amiga, atari, msdos, nt, os2, vms soon If someone can show that any of these are being used, let us know. * TODO: Note the plan to remove those directories this year. build: update gnulib submodule to latest maint: fix typos in vms manual: s/it\nit/\nit/ * vms/gzip.hlp: Remove doubled "it". 2011-04-10 Jim Meyering maint: fix typos in comment: s/to to/to/ * deflate.c: Remove doubled 'to's. 2011-03-20 Jim Meyering maint: stop using .x-sc_* files to list syntax-check exemptions Instead, use the new mechanism with which you merely use a variable (derived from the rule name) defined in cfg.mk to an ERE matching the exempted file names. * gnulib: Update to latest, to get maint.mk that implements this. * .x-sc_file_system: Remove file. * .x-sc_prohibit_tab_based_indentation: Likewise. * .x-sc_require_config_h: Likewise. * .x-sc_require_config_h_first: Likewise. * cfg.mk: Define variables to exempt the same files. 2011-03-18 Jim Meyering doc: correct README-release * README-release: Remove mention of -announce mailing list. Unlike coreutils, gzip does not have its own. doc: update release procedure * README-release: Resync from coreutils' file by the same name. 2011-01-03 Jim Meyering maint: update copyright year ranges to include 2011 Run "make update-copyright", so "make syntax-check" works in 2011. build: update gnulib submodule to latest maint: avoid failure of new test for bindtextdomain * cfg.mk (local-checks-to-skip): Add sc_bindtextdomain. 2010-12-02 Jim Meyering maint: avoid "make syntax-check" failure due to old-NEWS modification * cfg.mk (old_NEWS_hash): Update, to reflect recent NEWS correction. 2010-12-01 Paul Eggert * NEWS: The "gzip -f foo.gz" change occurred in 1.3.13, not 1.3.12 2010-11-10 Paul Eggert zgrep: don't assume traditional behavior with signal numbers * zgrep.in: Don't assume the exit status is the signal number plus 128, as POSIX doesn't require this. No need to kill self; exiting with large status is enough. Propagate all exit statuses greater than 1, not merely those in the range 129..143, as there's no need to treat that range specially (and it's not portable anyway). 2010-11-09 Paul Eggert zgrep: fix shell portability bug with -f; fix mishandling of "-e -" * tests/zgrep-f: Check for "zgrep -e -" bug, too. * zgrep.in: Don't assume that if the shell redirects fd 6, then this redirection is visible to the subsidiary grep. POSIX doesn't guarantee this visibility except for file descriptors 0, 1, and 2, and ksh does not support it. Problem reported by Thomas Schulz in . Also, fix a related bug: "-e -" was mishandled. These two bugs were introduced by commit 5b54db4546b84ec97ff57a62f8ddb98faacf77f2 dated 2009-10-09. (escape): Change the convention: do not assume that a stray X is present at the end of the last line. All uses changed. There was no longer any need for this convention, and fixing this made it a bit easier to use 'sed' in a later part of the fix. 2010-11-08 Paul Eggert maint: fix copyright dates that were munged by a maintenance script * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zforce.in: * zgrep.in, zless.in, zmore.in, znew.in: A script went awry when updating copyright dates in gzip's shell scripts. It should update comments to look like "# Copyright (C) 2007, 2010 Free Software Foundation, Inc." (with a set of years) and version messages to look like "Copyright (C) 2010 Free Software Foundation, Inc." (with just the most-recent year). Instead, it sometimes ignored one, sometimes the other, and typically put ranges into version messages. Fix all this stuff by hand, using dates that I divined from the change logs (so they're a bit more accurate than script-generated dates). We need to fix the script before it runs in 2011. 2010-10-23 Jim Meyering maint: anchor patterns in .gitignore files * doc/.gitignore: Anchor patterns. * lib/.gitignore: Likewise. * m4/.gitignore: Likewise. maint: update bootstrap and init.sh from gnulib * bootstrap: Update. * tests/init.sh: Update. 2010-10-23 Rob Vermaas maint: update to latest gnulib; use fdutimens, not gl_futimens * gzip.c (copy_stat): Use fdutimens, not gl_futimens. * gnulib: Update to latest. 2010-10-23 Jim Meyering maint: accommodate stricter syntax-check Avoid #if, #define and #undef of always-defined symbols. * gzip.c (ELOOP, SIGPIPE): Remove unneeded cpp directives. * tailor.h (HAVE_DIRENT_H, HAVE_FCNTL_H, HAVE_UNISTD_H, MSDOS): (O_BINARY): Likewise. maint: make our use of gnulib's init.sh conform * tests/help-version: Make use of init.sh conform. * tests/helin-segv: Likewise. * tests/help-version: Likewise. * tests/hufts: Likewise. * tests/memcpy-abuse: Likewise. * tests/mixed: Likewise. * tests/null-suffix-clobber: Likewise. * tests/stdin: Likewise. * tests/trailing-nul: Likewise. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. * tests/zgrep-signal: Likewise. * tests/znew-k: Likewise. 2010-10-10 Jim Meyering maint: describe policy on copyright year number ranges * README: Mention coreutils' long-standing policy on use of M-N ranges in copyright year lists. Requested by Richard Stallman. 2010-09-15 Paul Eggert zgrep: fix parsing of -Eh options * zgrep.in: Update list of single-letter options to match what's in GNU grep. Add -h as an alias for --no-filename. Bug reported by Vladimir Sidorenko in . 2010-08-17 Paul Eggert gzip: fix NO_SIZE_CHECK for VMS * gzip.c (do_list): Use if, not #if. * tailor.h (NO_SIZE_CHECK) [defined(VAXC) || defined(VMS)]: Define. * zip.c (zip): Simplify conditional, which was incorrect at any rate for VMS. 2010-08-15 Paul Eggert algorithm.doc: mention Internet RFC 1952 and modernize a bit * algorithm.doc: Update to mention header-CRC and Internet RFC 1952. Also, remove the crypto stuff, which never worked. Inspired by that same suggestion of Greg Roelofs. gzip: Use 0x%04x instead of %x when printing 16-bit checksums * gzip.c (get_method): Use 0x%04x, not %x, to print 16-bit checksums. Inspired by a suggestion of Greg Roelofs in http://lists.gnu.org/archive/html/bug-gzip/2010-08/msg00004.html 2010-08-03 Paul Eggert maint: update bootstrap * bootstrap, bootstrap.conf, tests/init.sh: Merge from gnulib. 2010-07-19 Paul R. Eggert gzip: don't assume C99, and don't assume overlapping memcpy should work * tailor.h (NOMEMCPY): Remove. memcpy is entitled to not work on overlapping blocks. * inflate.c (inflate_codes): Don't put decl after statement. Omit NOMEMCPY. * gzip.c (get_method): don't assume size_t can be printed with %u 2010-07-02 Paul Eggert Mention that gzip -d now handles FHCRC. 2010-07-02 Paul Eggert Decode FHCRC flag properly, as per Internet RFC 1952. Problem reported by Greg Roelofs in: http://lists.gnu.org/archive/html/bug-gzip/2010-06/msg00003.html * gzip.c (discard_input_bytes): New function. (get_method): Check header checksum, if given. We never generate it, but other programs may. * gzip.h (HEADER_CRC): Renamed from CONTINUATION. All uses changed. * tailor.h [defined __50SERIES]: Remove PRIMOS stuff that was obsolete anyway and would have made this patch harder to maintain. (get_char, put_char): Remove. * zip.c (zip): Use put_byte instead of the now-removed put_char. 2010-07-01 Paul Eggert Don't assume that sizeof (long) == 4 when computing statistics. * gzip.c (get_method): Don't assume sizeof (long) == 4. * zip.c (zip): Likewise. Update Info-ZIP name and coordinates (thanks to Greg Roelofs). 2010-05-11 Paul Eggert * doc/gzip.texi (Sample): Fix backslash quoting problem. Problem reported by Ole Tange in . 2010-04-26 Jim Meyering build: update gnulib submodule to latest maint: remove primos support * Makefile.am (EXTRA_DIST): Remove all primos/ files. * primos/build.cpl: Remove file. * primos/ci.opts: Likewise. * primos/include/errno.h: Likewise. * primos/include/fcntl.h: Likewise. * primos/include/stdlib.h: Likewise. * primos/include/sysStat.h: Likewise. * primos/include/sysTypes.h: Likewise. * primos/primos.c: Likewise. * primos/readme: Likewise. 2010-04-08 Jim Meyering build: include cfg.mk in the distribution tarball * Makefile.am (EXTRA_DIST): Add cfg.mk. 2010-04-07 Eric Blake maint: ignore more built files * .gitignore: Add version files. 2010-04-07 Jim Meyering tests: help-version: cross-check PATH in tests * tests/help-version: Cross-check $VERSION and --version output. * tests/Makefile.am (TESTS_ENVIRONMENT): Export VERSION=$(VERSION). tests: improve help-version * tests/help-version: Use fail_, rather than echo+Exit. tests: pull help-version from grep build: keep --version strictly up to date Before this change, in development, gzip's --version output could lag behind reality by a couple deltas or by a "-dirty" suffix. That would lead to spurious failure of the new --version-$VERSION PATH cross-check. * Makefile.am (version.c, version.h): New rules. (BUILT_SOURCES): Set/append. (noinst_LIBRARIES, noinst_libver_a_SOURCES): Define. (gzip_LDADD): Add libver.a. (DISTCLEANFILES): Define. * gzip.c (license): Use Version, not VERSION. 2010-04-06 Jim Meyering tests: (portability) use st, not "status" as variable name * tests/zgrep-signal: Do not use status as a variable name, per autoconf's documentation that it is not portable to some shells. tests: s/framework_failure/framework_failure_/ tests: update init.sh from gnulib * tests/init.sh: Update from gnulib. tests: run most tests via tests/Makefile.am * Makefile.am (SUBDIRS): List tests after ".". Move most test-related things from here to ... * tests/Makefile.am: ... here. * configure.ac (AC_CONFIG_FILES): Add tests/Makefile. * tests/helin-segv: Adjust. * tests/help-version: Likewise. * tests/hufts: Likewise. * tests/memcpy-abuse: Likewise. * tests/mixed: Likewise. * tests/null-suffix-clobber: Likewise. * tests/stdin: Likewise. * tests/trailing-nul: Likewise. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. * tests/zgrep-signal: Likewise. * tests/znew-k: Likewise. tests: skip tests that use grep's -f and -E options, if they don't work * tests/init.cfg (require_grep_minus_f): New function. * tests/zgrep-f: Use require_grep_minus_f. Use path_prepend_. tests: arrange for skip and failure notices to go to stderr, not .log * tests/init.cfg: New file. Make init.sh's stderr_fileno_ match what the "exec 9>&2" we use in TESTS_ENVIRONMENT. * Makefile.am (EXTRA_DIST): Add it. 2010-04-06 Eric Blake maint: ignore generated files * .gitignore: Ignore recent gnulib additions. maint: update bootstrap * bootstrap: Use latest copy from gnulib/build-aux. 2010-04-05 Jim Meyering build: use gnulib's lib-ignore module * bootstrap.conf (gnulib_modules): Add lib-ignore, in case it helps. * Makefile.am (AM_LDFLAGS): Define it. maint: let configure-invoked cpp emit diagnostics to config.log * configure.ac: Do not discard CPP's stderr. build: update gnulib submodule to latest, and adapt * cfg.mk: Update to use new _sc_search_regexp interface. Run this: perl -pi -e 's/\b_prohibit_regexp\b/_sc_search_regexp/;' -e 's/\bmsg=/halt=/; s/\bre=/prohibit=/;' cfg.mk and then adjust backslashes so they still line up. * cfg.mk (local-checks-to-skip): Add new sc_texinfo_acronym, to skip it. * msdos/tailor.c (fcalloc): Mark a diagnostic for translation, to placate stricter syntax-check, even though no one uses this file. use assembly code matcher when possible * configure.ac (ASCPPPOST): Backslash-escape "#" in AC_SUBST'd variable, to keep make from seeing it as a comment-introducer. Based on a patch by Petr Pisar. * lib/Makefile.am (match.$(OBJEXT)): Use AM_V_GEN and AM_V_at. * lib/match.c: Don't include . It would impede configure-time assembler test. * .x-sc_require_config_h: Exempt lib/match.c from syntax-check. * .x-sc_require_config_h_first: Likewise. 2010-03-20 Jim Meyering do not use stat.st_mtime of a non-regular file * gzip.c: Include "timespec.h". (treat_stdin): Use st_mtime only from a regular file. This matters at least on Cygwin 1.7.1-1, for which a stdin-pipe has the mtime of /dev/null, rather than the gzip-documented-for-pipes "current time". Reported by Denis Excoffier. 2010-02-22 Jim Meyering tests: exercise the fix for the decompression data-loss bug * tests/null-suffix-clobber: New file. * Makefile.am (TESTS): Add it. gzip: fix a data-loss bug when decompressing with --suffix='' * gzip.c (main): Disallow an empty --suffix=S also with -d. Otherwise, "gzip -d -S '' F.gz" would ask if it's ok to remove the existing file, "F.gz"; if you reply "yes", you'd lose all of that data. Use of an empty suffix was already rejected in compression mode. * gzip.1 (--suffix (-S)): Do not recommend to use "gunzip -S '' *". Describe how the suffix is used when decompressing, too. * NEWS (Bug fixes): mention the fix. Reported by Ripduman Sohan. tests: add ---presume-input-tty option, solely for testing * gzip.c: Include . (presume_input_tty): New global. (main): Set it. (treat_stdin, check_ofname): Use it. 2010-02-07 Jim Meyering doc: minor adjustment to README-release * README-release: Tweak description, to sync from coreutils. tests: add the help-version sanity tests from coreutils * tests/help-version: New file, from coreutils. * Makefile.am (TESTS): Add it. tests: make distcheck invoke "make syntax-check" and other tests * dist-check.mk: New file, from coreutils. * cfg.mk: Include it. * Makefile.am (distcheck-hook): New rule, to make us use it. zcmp: consistently indicate failure with exit status of 2 * zcmp.in: Exit with status of 2 (not 1), when writing --help or --version output fails, to be more like cmp. 2010-02-03 Jim Meyering tests: add more tests of gzip -cdf * tests/mixed: Test "gzip -cdf" for a range of small uncompressed files. tests: flip and adjust mixed test, now that the bug is fixed * NEWS (Bug fixes): Mention the fix. * Makefile.am (XFAIL_TESTS): Move tests/mixed from here... (TESTS): ...to here. * tests/mixed: Comment out the currently (always?) failing part. 2010-02-03 Mark Adler gzip -cdf now handles concatenation of gzip'd and uncompressed data * util.c (copy): Change semantics so as to honor a decremented inptr. * gzip.c (get_method): When needed (-cdf), decrement inptr rather than clearing it -- and output the first magic byte. 2010-02-03 Dmitry V. Levin zgrep: terminate gracefully when a pipeline is interrupted by a signal zgrep is not terminated gracefully when its grep/sed pipeline is terminated by a signal. For example, a command like zgrep -F .TH /usr/share/man/man1/*.gz | head continues working long after the "head" process completes. Another example, a command like zgrep unmatched-pattern /usr/share/man/man1/*.gz cannot be interrupted by sending a SIGQUIT with Ctrl-\ key, it outputs zgrep: line 221: test: : integer expression expected and goes on. * zgrep.in: Terminate gracefully when the grep/sed pipeline is terminated by a signal. * tests/zgrep-signal: New test. * Makefile.am (TESTS): Add it. 2010-02-03 Jim Meyering maint: teach "make syntax-check" the space-only indentation rule * cfg.mk (sc_prohibit_tab_based_indentation): New rule, from coreutils. (sc_prohibit_emacs__indent_tabs_mode__setting): Likewise. * bootstrap: Remove "indent-tabs-mode: nil" directive. * .x-sc_prohibit_tab_based_indentation: New file. 2010-02-02 Jim Meyering global: convert indentation-TABs to spaces Transformed via this shell code: t=$'\t' git ls-files \ | grep -vE '(^|/)((GNU)?[Mm]akefile|ChangeLog)|\.(am|mk)$' \ | grep -vE 'tests/pr/|help2man' \ | xargs grep -lE "^ *$t" \ | xargs perl -MText::Tabs -ni -le \ '$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_' 2010-02-02 Dmitry V. Levin wrapper scripts: write diagnostics to stderr, not to stdout * zforce.in: In case of usage error, output short error diagnostics to stderr instead of printing help text to stdout. * zmore.in: Likewise. * znew.in: Likewise. 2010-02-02 Jim Meyering gzip -cdf mishandles some concatenated input streams: test it * tests/mixed: Exercise "gzip -cdf" bug. * Makefile.am (XFAIL_TESTS): Add it. Mark Adler reported the bug. tests: move the hufts-segv test to its own file * tests/hufts: New test. * Makefile.am (TESTS): Add tests/ (check-local): Remove the hufts-segv test from this rule. tests: begin moving tests into their own files * Makefile.am (TESTS): Add tests/stdin. (check-local): Move the stdin check to its own file: * tests/stdin: New script. tests: remove unnecessary use of "path_prepend_ ." It is unnecessary, since Makefile.am's TESTS_ENVIRONMENT setting already adds the top build directory, and besides, is only marginally useful when running stand-alone, since it presumes that the script is being run from the top build directory. * tests/helin-segv: Remove unnecessary use of path_prepend_. * tests/memcpy-abuse: Likewise. * tests/trailing-nul: Likewise. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. tests: note that znew-k test depends on length of temp file name * tests/znew-k: Tweak diagnostic, factor and add a surprising comment. 2010-02-01 Jim Meyering build: update gnulib submodule to latest 2010-02-01 Dmitry V. Levin fix "znew -K" to work without use of compress utility * znew.in: Change -K option to imply -t, do not use compress(1). * znew.1: Document it. * tests/znew-k: New test. * Makefile.am (TESTS): Add it. 2010-01-20 Jim Meyering maint: update README-release procedure * README-release: sync from coreutils. post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.4 * NEWS: Record release date. tests: exercise the segfault fix * tests/helin-segv: New test. * Makefile.am (TESTS): Add it. gzip -d: do not clobber stack for valid input on x86_64 * unlzw.c (unlzw): Avoid integer overflow. Aki Helin reported the segfault along with an input to trigger the bug. * NEWS (Bug fixes): Mention it. maint: avoid a minor "make syntax-check" failure * .x-sc_file_system: Exempt NEWS, since it includes a literal from an old diagnostic. maint: remove unused file: README-alpha * README-alpha: Remove unused file. build: update gnulib submodule to latest 2010-01-11 Yuxi Zhang gzip -d: use memcpy more often * inflate.c (inflate_codes): Use memcpy (rather than slower memcopy-like code) in more cases. 2010-01-11 Jim Meyering build: do not override gnulib-provided AM_CFLAGS options Avoid a warning from automake: lib/Makefile.am:24: AM_CFLAGS multiply defined in condition TRUE ... lib/gnulib.mk:30: ... `AM_CFLAGS' previously defined here lib/Makefile.am:20: `lib/gnulib.mk' included from here * lib/Makefile.am (AM_CFLAGS): Append $(WARN_CFLAGS) and $(WERROR_CFLAGS), i.e., use "+=", not "=". This was introduced via 2009-12-17 commit 0341fc22, "build: with --enable-gcc-warnings, use -Werror", but fortunately is not a bug, because the definition it would have overridden was always empty. 2010-01-10 Jim Meyering gzip -d would fail with a CRC error... ...for some inputs, and some memcpy implementations. It is possible that an offending input has to be compressed "from FAT filesystem (MS-DOS, OS/2, NT)", since the sole reproducer no longer evokes a CRC error when uncompressed and recompressed on a GNU/Linux system. Also, using an unpatched reverse-memcpy-gzip on over 100,000 inputs on a GNU/Linux system did not turn up another reproducer. * inflate.c (inflate_codes): Don't call memcpy with overlapping regions. Properly detect when source and destination overlap. * tests/memcpy-abuse: New test, to trigger misbehavior. * Makefile.am (TESTS): Add it. * NEWS (Bug fixes): Mention it. Reported by Alain Magloire in http://thread.gmane.org/gmane.comp.gnu.gzip.bugs/307 2010-01-08 Jim Meyering tests: switch to gnulib's init.sh test infrastructure * tests/test-lib.sh: Remove file. * tests/init.sh: New file, from gnulib. * tests/trailing-nul: Use the new file. * tests/zdiff: Likewise. * tests/zgrep-f: Likewise. * Makefile.am (EXTRA_DIST): List tests/init.sh, not test-lib.sh. build: update gnulib submodule to latest 2010-01-03 Jim Meyering maint: record update-copyright options for this package * cfg.mk: Next time, just run "make update-copyright". 2010-01-01 Jim Meyering maint: update all FSF copyright year lists to include 2010 Use this command: git ls-files |grep -vE '^(\..*|COPYING|gnulib)$' |xargs \ env UPDATE_COPYRIGHT_USE_INTERVALS=1 build-aux/update-copyright 2009-12-31 Jim Meyering maint: newer gnulib; don't hard-code my GPG key ID * cfg.mk (gpg_key_ID): Remove definition, now that maint.mk automates it. * gnulib: Update to lastest. 2009-12-30 Jim Meyering build: update gnulib submodule to latest maint: remove lots of obsolete #if...HAVE_* checks Remove many always-true cpp tests like #ifdef HAVE_UNISTD_H, #ifdef HAVE_FCNTL_H and #ifdef SSIZE_MAX. * gzip.c: As above. * gzip.h: Likewise. * inflate.c: Likewise. * tailor.h: Likewise. * unlzw.c: Likewise. * util.c: Likewise. * zip.c: Likewise. build: add a syntax-check * cfg.mk (sc_prohibit_obsolete_HAVE_HEADER_H): New rule. build: with --enable-gcc-warnings, use -Werror * Makefile.am (AM_CFLAGS): Enable $(WERROR_CFLAGS). * lib/Makefile.am (AM_CFLAGS): Enable both $(WARN_CFLAGS) and $(WERROR_CFLAGS). build: quiet warnings from util.c * configure.ac (warnings): Add -Wno-overflow and -Wno-type-limits. build: avoid warning about possibly-no-return functions * gzip.h (read_error, write_error): Mark these functions as "no-return". build: avoid warning about ignored chown/fchown return value * bootstrap.conf (gnulib_modules): Add ignore-value. * gzip.c: Include "ignore-value.h". (copy_stat): Explicitly ignore chown and fchown failure build: update gnulib submodule to latest 2009-11-20 Jim Meyering build: unlzw.c: avoid warnings about unused macros * configure.ac: Turn off -Wunused-macros. build: avoid warnings about unused macros * unzip.c (LOCTIM): Comment out unused macro. * deflate.c (EQUAL): Remove definition. Use "0" at sole point of use. build: util.c: avoid warnings about add_envopt * util.c (add_envopt): The parameter "env" was used for two conflicting purposes. One use required a const char* parameter, while the other was used as an argument to free, which must not be "const". Rename the parameter and use a new local variable for the second role. build: avoid many const-related warnings * gzip.c: Add "const" to many variables, to avoid compiler warnings. * util.c (add_envopt): Make 3rd parameter const (gzip_error): Make sole parameter const. * gzip.h: Update prototypes. build: avoid warnings from -Wstrict-prototypes * gzip.c (main): Declare using a prototype. (progerror): Likewise. And make parameter const. build: use gnulib's fdopendir module * bootstrap.conf (gnulib_modules): Add fdopendir. * gzip.c (treat_dir): Don't depend on HAVE_FDOPENDIR. Gnulib now guarantees its availability. * configure.ac: Don't check for fdopendir here. build: enable many warnings * configure.ac: Add support for --enable-gcc-warnings. * bootstrap.conf (gnulib_modules): Add manywarnings. * Makefile.am (AM_CFLAGS): Add (WARN_CFLAGS) # $(WERROR_CFLAGS) maint: tweak formatting of bootstrap.conf * bootstrap.conf (gnulib_modules): Unindent list. maint: cfg.mk: remove factored-out ftp host/dir definitions * cfg.mk (gnu_ftp_host-alpha, gnu_ftp_host-beta gnu_ftp_host-stable): (gnu_rel_host, url_dir_list): Remove definitions. The defaults, now provided by maint.mk, are the same. * gnulib: Update for latest, including those maint.mk additions. build: "make stable" emitted an invalid gnupload command * cfg.mk (gnu_ftp_host-stable): Rename from gnu_ftp_host-major. * README-release: Change another s/major/stable/. 2009-10-30 Jim Meyering post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.3.14 * NEWS: Record release date. build: accommodate new syntax-check test * amiga/tailor.c (_expand_args): Change each of three uses of "exit(20)" to "exit(EXIT_FAILURE)". * sample/add.c: Include . (main): Use EXIT_FAILURE and EXIT_SUCCESS, not 1 and 0. * sample/sub.c (main): Likewise. * sample/zread.c (main): Likewise. build: update gnulib submodule to latest build: link with $(LIB_CLOCK_GETTIME) * Makefile.am (gzip_LDADD): Add $(LIB_CLOCK_GETTIME), now that utimens pulls in gettime. (FILES_TO_CHECK): Remove $(gzip_LDADD), now that it may contain -lrt. 2009-10-28 Jim Meyering msdos: fix syntax in Makefile.djg * msdos/Makefile.djg (gzip): Change each of two leading 8-space sequences to a TAB. Reported by Allan Mui. 2009-10-20 Jim Meyering build: do not use AC_PREFIX_PROGRAM * configure.ac: Do not use "AC_PREFIX_PROGRAM(gzip)". It would induce behavior that is so surprising that it is probably universally considered to be buggy, these days. Reported by Zube in http://thread.gmane.org/gmane.comp.gnu.gzip.bugs/273 2009-10-10 Jim Meyering gzip: add tests for today's bug fix * tests/trailing-nul: New file. Test for today's fix. * Makefile.am (TESTS): Add new script. * NEWS (Bug fixes): Mention it. 2009-10-10 Daniel Barkalow gzip: don't fail when there is exactly one trailing NUL byte * gzip.c (get_method): Require the second byte of magic only if the first byte was nonzero. 2009-10-09 Jim Meyering build: enable automake color- and parallel-test options * configure.ac (AM_INIT_AUTOMAKE): Enable color-tests and parallel-tests. zgrep: portability improvements; exercise "-f -" * zgrep.in: Adjust loop not to use seq; it's not portable enough. Fail if we don't find a free file descriptor. (exists): New function; Use it in place of less portable "test -e". Testing for existence of /dev/fd/$fd doesn't work on Solaris 10, since all 256 always exist (as char devices), but testing for /proc/$$/fd/$fd does work, so do that instead. * Makefile.am (TESTS): Add tests/zgrep-f. * tests/zgrep-f: New test; exercise this bug. * NEWS (Bug fixes): Mention it. 2009-10-09 Carl Worth zgrep: handle "-f -" the same way that it works with grep Before this change, echo needle|zgrep -f - haystack.gz would not work. * zgrep.in: When the pattern comes from stdin, redirect it to a different file descriptor, since we're about to use stdin. 2009-10-09 Jim Meyering zdiff would exit 2 (error) rather than 1 for differences * zdiff.in: Save and restore cmp's exit status around a case statement that would otherwise clobber its value. * NEWS (Bug fixes): Mention it. * tests/zdiff: New test; exercise both bugs. * tests/test-lib.sh: New file. From coreutils. * Makefile.am (EXTRA_DIST): Add tests/test-lib.sh. (TESTS): Add tests/zdiff. (TESTS_ENVIRONMENT): Define. From coreutils. (EXTRA_DIST): Append all $(TESTS). zdiff: fix malfunction when operating on two gzip'd inputs zdiff would fail to print differences in two compressed inputs * zdiff.in: Don't let cmp output mix with echo'd gzip exit status values. Report and fix from Jörg-Volker Peetz via * NEWS (Bug fixes): Mention it. build: update gnulib submodule to latest 2009-10-07 Jim Meyering build: update gnulib submodule to latest 2009-10-06 Jim Meyering maint: clarify web-doc-update instructions * README-release: sync a tiny change from coreutils. 2009-10-03 Jim Meyering build: update gnulib submodule to latest doc: use gnu-web-doc-update module * bootstrap.conf (gnulib_modules): Add it. 2009-10-02 Jim Meyering doc: describe release procedure * README-release: New file. 2009-10-01 Jim Meyering maint: make cfg.mk slightly more generic * cfg.mk (url_dir_list): Don't hard-code "coreutils". Use $(PACKAGE). 2009-09-30 Jim Meyering post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. version 1.3.13 * NEWS: Record release date. build: update gnulib submodule to latest maint: update bootstrap script * bootstrap (with_gettext): Update from coreutils. maint: pull in two release-related modules from gnulib * bootstrap.conf (gnulib_modules): Add announce-gen and gnupload. build: use more gnulib modules for better POSIX compliance * bootstrap.conf (gnulib_modules): Add modules exposed via make CFLAGS=-DGNULIB_POSIXCHECK 2>&1 \ |perl -lne '/.* use gnulib module (\S+).*/ and print $1' \ |sort |uniq -c|sort -nr Add these: calloc close fclose fprintf-posix lstat malloc perror printf-posix realloc 2009-09-30 Karl Berry doc: update to FDL 1.3, minor clean-up * NEWS, README, TODO: Update FDL s/1.2/1.3/. 2009-09-28 Karl Berry doc: update gzip.texi * doc/gzip.texi: FDL 1.3+ Consistently (de)capitalize section names. "User's" is not correct; seems best to simplify the title. Throw in some "GNU"'s. Make direntries be what we actually want. Detabify. 2009-09-26 Jim Meyering maint: temporarily exempt failing syntax-check tests * cfg.mk (local-checks-to-skip): Add the list of currently-failing tests, to exempt them from "make syntax-check". gzip: don't use an uninitialized file descriptor gzip interprets an argument of "-" as indicating stdin, but when "-" is not the first name on the command line, it doesn't work. * gzip.c (treat_stdin): Initialize "ifd". Patch and fine description by Lasse Collin in http://www.mail-archive.com/bug-gzip@gnu.org/msg00213.html * Makefile.am (check-local): Exercise the fix. Based on the above. * NEWS (Bug fixes): Mention this. maint: use a git submodule for gnulib * .gitmodules: New file, to track gnulib. * gnulib: New file, created by running this: git submodule add git://git.sv.gnu.org/gnulib.git gnulib maint: update existing copyright year lists to include 2009 * bootstrap.conf (gnulib_modules): Add update-copyright. maint: include first in many files maint: avoid another "make syntax-check" failure * lib/Makefile.am (match.$(OBJEXT)): Use $(ASCPPPOST), not @ASCPPPOST@. maint: remove RCS $Id$ variables and comments maint: change spelling in comments: s/filesystem/file system/ maint: don't use "the the" * msdos/doturboc.bat: s/the the/the/. maint: remove trailing blanks maint: remove useless if-before-free tests * gzip.c (do_exit): Remove useless if-before-free tests. maint: remove useless casts to avoid "make syntax-check" failures * gzip.c (do_exit): Remove anachronistic cast. * inflate.c (huft_free): Likewise. * util.c (add_envopt): Likewise. * vms/vms.c (vms_expand_args): Likewise. maint: new file: .prev-version * .prev-version: New file, to record previous version number. 2009-09-06 Jim Meyering build: avoid spurious warnings from clang * gzip.h (gzip_error): Declare with ATTRIBUTE_NORETURN. maint: update build-from-scratch infrastructure * bootstrap: Modernize. * bootstrap.conf: Modernize. * cfg.mk: New file. 2009-08-18 Jim Meyering inflate: avoid a leak on a error path * inflate.c (inflate_dynamic): Don't leak maint: ignore a few generated files * lib/.gitignore: ignore more generated files. tests: add a test for just-fixed bug * tests/hufts-segv.gz: New file, from bug report. * Makefile.am (EXTRA_DIST): Add tests/hufts-segv.gz. (check-local): Exercise the bug. tests: don't misinterpret a failing test as successful * Makefile.am (check-local): Exit "1" upon failure, not 0. 2009-08-18 Thiemo Nagel avoid creating an undersized buffer for the hufts table A malformed input file can cause gzip to crash with a segmentation violation or hang in an endless loop. Reported in . * NEWS (Bug fixes): Mention it. 2009-08-18 Jim Meyering avoid silent data loss e.g., on NFS, due to unchecked close of stdout * gzip.c: Include "closein.h". (main): Use atexit (close_stdin); * bootstrap.conf (gnulib_modules): Add closein. Prompted by Mark Kidwell's report and patch in http://bugs.debian.org/538187 * NEWS (Bug fixes): Mention it. * */.gitignore: Update. build: require automake-1.11 and produce xz-compressed tarballs, too * configure.ac: Require automake-1.11. Use the dist-xz option. build: avoid non-srcdir build failure * Makefile.am (gzip.doc.gz): Use $(srcdir)/gzip.doc, not gzip.doc. Don't redirect directly to $@. Use $(AM_V_GEN). (gzip.doc, .in): Don't redirect directly to $@. Use $(AM_V_GEN). * NEWS: Add template header for upcoming release. build: enable git-version-gen, automake silent rules, generate ChangeLog * configure.ac (AC_INIT): Use git-version-gen. Use AM_SILENT_RULES([yes]). (AM_INIT_AUTOMAKE): Drop gnits; conflicts with git-version-gen versions. * bootstrap.conf (gnulib_modules): Use getopt-gnu Ensure ChangeLog exists, for automake. rather than obsolete "getopt" module. Add gitlog-to-changelog. Add git-version-gen. Add gnu-make, gnumakefile and maintainer-makefile. * Makefile.am (dist-hook, gen-ChangeLog): New rules, to generate ChangeLog and insert it into the distribution tarball. (EXTRA_DIST): Add ChangeLog-2007. maint: retire the last VC'd ChangeLog file * ChangeLog-2007: Rename from ChangeLog. From now on, the ChangeLog file will be generated automatically from commit logs. maint: rename .cvsignore files to .gitignore * .gitignore: Renamed from .cvsignore. * doc/.gitignore: Likewise. * lib/.gitignore: Likewise. * m4/.gitignore: Likewise. NEWS000064400000054031152527125130005251 0ustar00GNU gzip NEWS -*- outline -*- * Noteworthy changes in release 1.9 (2018-01-07) [stable] ** Bug fixes gzip -d -S SUFFIX file.SUFFIX would fail for any upper-case byte in SUFFIX. E.g., before, this command would fail: $ :|gzip > kT && gzip -d -S T kT gzip: kT: unknown suffix -- ignored [bug present since the beginning] When decompressing data in 'pack' format, gzip no longer mishandles leading zeros in the end-of-block code. [bug introduced in gzip-1.6] When converting from system-dependent time_t format to the 32-bit unsigned MTIME format used in gzip files, if a timestamp does not fit gzip now substitutes zero instead of the timestamp's low-order 32 bits, as per Internet RFC 1952. When converting from MTIME to time_t format, if a timestamp does not fit gzip now warns and substitutes the nearest in-range value instead of crashing or silently substituting an implementation-defined value (typically, the timestamp's low-order bits). This affects timestamps before 1970 and after 2106, and timestamps after 2038 on platforms with 32-bit signed time_t. [bug present since the beginning] Commands implemented via shell scripts are now more consistent about failure status. For example, 'gunzip --help >/dev/full' now consistently exits with status 1 (error), instead of with status 2 (warning) on some platforms. [bug present since the beginning] Support for VMS and Amiga has been removed. It was not working anyway, and it reportedly caused file name glitches on MS-Windowsish platforms. * Noteworthy changes in release 1.8 (2016-04-26) [stable] ** Bug fixes gzip -l no longer falsely reports a write error when writing to a pipe. [bug introduced in gzip-1.7] Port to Oracle Solaris Studio 12 on x86-64. [bug present since at least gzip-1.2.4] When configuring gzip, ./configure DEFS='...-DNO_ASM...' now suppresses assembler again. [bug introduced in gzip-1.3.5] * Noteworthy changes in release 1.7 (2016-03-27) [stable] ** Changes in behavior The GZIP environment variable is now obsolescent; gzip now warns if it is used, and rejects attempts to use dangerous options or operands. You can use an alias or script instead. Installed programs like 'zgrep' now use the PATH environment variable as usual to find subsidiary programs like 'gzip' and 'grep'. Previously they prepended the installation directory to the PATH, which sometimes caused 'make check' to test the wrong gzip executable. [bug introduced in gzip-1.3.13] ** New features gzip now accepts the --synchronous option, which causes it to use fsync and similar primitives to transfer output data to the output file's storage device when the file system supports this. Although this option makes gzip safer in the presence of system crashes, it can make gzip considerably slower. gzip now accepts the --rsyncable option. This option is accepted in all modes, but has effect only when compressing: it makes the resulting output more amenable to efficient use of rsync. For example, when a large input file gets a small change, a gzip --rsyncable image of that file will remain largely unchanged, too. Without --rsyncable, even a tiny change in the input could result in a totally different gzip-compressed output file. ** Bug fixes gzip -k -v no longer reports that files are replaced. [bug present since the beginning] zgrep -f A B C no longer reads A more than once if A is not a regular file. This better supports invocations like 'zgrep -f <(COMMAND) B C' in Bash. [bug introduced in gzip-1.2] * Noteworthy changes in release 1.6 (2013-06-09) [stable] ** New features gzip now accepts the --keep (-k) option, for consistency with tools like xz, lzip and bzip2. With this option, gzip no longer removes named input files when compressing or decompressing. ** Bug fixes gzip -d no longer malfunctions with certain invalid data in 'pack' format. [bug introduced in gzip-0.8] When overwriting, gzip no longer acts as if you typed "y" when you type "n", on some platforms when compiled with optimization. [bug introduced in gzip-1.3.6] zgrep no longer malfunctions with a multi-digit context option like -15. Now, it passes that option to grep (equivalent to -C15) just as it does for single-digit options. [bug introduced in gzip-1.3.12] zmore now acts more like 'more', and is more portable to POSIXish hosts. * Noteworthy changes in release 1.5 (2012-06-17) [stable] ** Bug fixes gzip -d now decodes and checks header CRC16 checksums as specified by the FHCRC section of Internet RFC 1952. "gzip -d -S '' precious.gz" is now rejected immediately. Before, that command would emulate "rm -i precious.gz", but with an easily- misunderstood prompt. I.e., gzip would ask if it's ok to remove the existing file, "precious.gz". If you made the mistake of saying "yes", it would remove that input file before attempting to uncompress it. gzip -cdf now properly handles input consisting of gzip'd data followed by uncompressed data. Before it would output raw compressed input, too. For example, now "(printf x|gzip; echo y)|gzip -dcf" prints "xy\n", while before it would print "xy\n". gzip -rf no longer compresses files more than once (e.g., replacing FOO with FOO.gz.gz) on file systems such as ZFS where a readdir loop that unlinks and creates files can revisit output files. * Noteworthy changes in release 1.4 (2010-01-20) [stable] ** Bug fixes gzip -d could segfault and/or clobber the stack, possibly leading to arbitrary code execution. This affects x86_64 but not 32-bit systems. This fixes CVE-2010-0001. For more details, see https://bugzilla.redhat.com/554418 gzip -d would fail with a CRC error for some valid inputs. So far, the only valid input known to exhibit this failure was compressed "from FAT filesystem (MS-DOS, OS/2, NT)". In addition, to trigger the failure, your memcpy implementation must copy in the "reverse" order. * Noteworthy changes in release 1.3.14 (2009-10-30) [beta] ** Bug fixes gzip no longer fails when there is exactly one trailing NUL byte gzip has always accepted trailing NUL bytes. Note the plural. zdiff would exit with status 2 (indicating an error) rather than 1 to indicate differences when both inputs were compressed and different. zdiff would fail to print differences in two compressed inputs zgrep -f - didn't work * Noteworthy changes in release 1.3.13 (2009-09-30) [stable] ** 'gzip -f foo.gz' now creates a file foo.gz.gz instead of complaining. ** Bug fixes gzip -d no longer fails with "-" as 2nd or subsequent argument gzip no longer ignores a close-induced write failure, e.g., on NFS gzip -d no longer segfaults on certain invalid inputs Major changes in Gzip 1.3.12 (2007-04-13) * znew now uses $TMPDIR (default /tmp) instead of always using /tmp. * It is now documented that gzip ignores case when examining file name extensions; for example, 'gzip test.Gz' (without -f) fails because the file name ends in '.Gz'. Major changes in Gzip 1.3.11 (2007-02-05) * As per the GNU coding standards, the behavior of gzip and its companion executables no longer depend on the name used to invoke them. For example, 'gzip' and 'gunzip' are no longer hard links; instead, 'gunzip' is now a small program that invokes 'gzip -d'. * zdiff now checks for subsidiary gzip failures, and works around bugs in IRIX 6 sh, Tru64 4.0F ksh, and Solaris 8 bash. Major changes in Gzip 1.3.10 (2006-12-30) * gzip -c and zcat now work on special files, files with special mode bits, and files with multiple hard links. * gzip -q now exits with status 2 (not 1) when SIGPIPE is received. * zcmp and zdiff did not work in the usual case, due to a typo. * zgrep has many bugs fixed with argument handling, special characters, and exit status. * zless no longer mishandles $%=~ in file names. Gzip 1.3.9 (2006-12-15) * No major changes; only porting fixes. Major changes in Gzip 1.3.8 (2006-12-08) * Fix some gzip problems: - A security fix from Debian 1.3.5-5 was inadvertently omitted. - The assembler is now invoked with --noexecstack if supported, so that gzip can better resist stack-smashing attacks. Major changes in Gzip 1.3.7 (2006-12-06) * Fix some gzip problems: - Refuse to compress setuid or setgid files, or files with the sticky bit. - Fix more race conditions in setting file permissions and owner, removing output files, following symbolic links, and dealing with special files. - Remove most of the code working around ENAMETOOLONG deficiencies. Systems with those deficiencies are long-dead, and the workarounds had race conditions on modern hosts. - Catch CPU time and file size limit signals, too. - Check for read errors when closing files. - Fix a core dump caused by a stray abort mistakenly introduced in 1.3.6. * Fix some gzexe problems: - Improve resistance to denial-of-service attacks. - Fix some quoting and escaping bugs. - Do not assume /tmp is sticky (though it should be!). - Do not assume the working directory can be written. - Rely on PATH in the generated executable, as the man page says. - Don't assume IFS is sane. - Exit with signal's status, if signaled. Major changes in Gzip 1.3.6 (2006-11-20) * Fix some race conditions in setting file timestamps, permissions, and owner. * Fix some race conditions in signal handling. * When gzip exits due to a signal, it exits with the signal's status, not 1. * gzip now restores file timestamps to the resolution supported by the time-setting primitives of the operating system, typically 1 microsecond. Formerly it restored them only to the nearest second. * gzip -r no longer attempts to reset the last-access times of directories it reads, as this messes up when other processes are reading the directories. * The options --version and --help now work on all gzip-installed executables, and now use a format similar to other GNU programs. * The manual is now distributed under the terms of the GNU Free Documentation License without invariant sections or cover texts. * Port to current versions of Autoconf, Automake, and Gnulib. Major changes from 1.3.4 to 1.3.5 * gzip now removes any output symlink before writing output file. * zgrep etc. scripts now port to POSIX 1003.1-2001 hosts. * zforce no longer assumes 14-byte file name length limit. * zless is now implemented using less and LESSOPEN, not zmore and PAGER. * assembly-language speedups reenabled; were mistakenly disabled in 1.3. Major changes from 1.3.3 to 1.3.4 * Less output is lost when decompressing a truncated file. * The manual is now distributed under the terms of the GNU Free Documentation License. No major changes in 1.3.2 or 1.3.3 (bug fixes only) Major changes from 1.3 to 1.3.1 * zgrep now supports --, -H, -h, -L, -l, -C, -d, -m and their long equivalents. Major changes from 1.2.4 to 1.3 * Add support for large files, e.g. files larger than 2 GB on Solaris 2.6. * Adjust file size listing format for files larger than 10 GB. * New command `zless'. * `zdiff' now reports exit status like `diff' does. * `zcat' is now always called `zcat', not `gzcat'. Similarly for `zdiff', `zgrep', `zmore', `znew', `zforce'. * Warn about a compressed file's trailing zeros only if verbose, for compatibility with recent versions of GNU tar. * Conform to changes to GNU makefile standards. * Port to Autoconf 2.13. * Convert to Automake. * Fix bugs in the following areas: - files larger than 4 GB - security hole involving symlinks from /tmp - security hole involving long file names - permissions bug when compressing a symbolic link to a file - core dumps - concatenated compressed files on INBUFSIZ boundaries - porting bugs on hosts with signed chars - porting bug with upper and lower case - porting bug for hosts that reserve the names `basename' or `warning' Major changes from 1.2.3 to 1.2.4 * By default, do not restore file name and timestamp from those saved inside the .gz file (behave as 'compress'). Added the --name option to force name and timestamp restoration. * Accept - as synonym for stdin. * Use manlinks=so or ln to support either hard links or .so in man pages * Accept foo.gz~ in zdiff. * Added support for Windows NT * Handle ENAMETOOLONG for strict Posix systems * Use --recursive instead of --recurse to comply with Webster and the GNU stdandard. * Allow installation of shell scripts with a g prefix: make G=g install * Install by default zcat as gzcat if gzcat already exists in path. * Let zmore behave as more when invoked without parameters (give help) * Let gzip --list reject files not in gzip format even with --force. * Don't complain about non gzip files for options -rt or -rl. * Added advice in INSTALL for several systems. Major changes from 1.2.2 to 1.2.3 * Don't display the output name when decompressing except with --verbose. * Remove usage of alloca in getopt.c and all makefiles. * Added the zfile shell script in subdirectory sample. * Moved the list of compiler bugs from README to INSTALL. * Added vms/Readme.vms. Major changes from 1.2.1 to 1.2.2 * Fix a compilation error on Sun with cc (worked with gcc). Major changes from 1.2 to 1.2.1 * Let zmore act as more if the data is not gzipped. * made gzexe more secure (don't rely on PATH). * By default, display output name only when the name was actually truncated. Major changes from 1.1.2 to 1.2 * Added the --list option to display the file characteristics. * Added the --no-name option: do not save or restore original filename Save the original name by default. * Allow gunzip --suffix "" to attempt decompression on any file regardless of its extension if an original name is present. * Add support for the SCO compress -H format. * gzip --fast now compresses faster (speed close to that of compress) with degraded compression ratio (but still better than compress). Default level changed to -6 (acts exactly as previous level -5) to be a better indication of its placement in the speed/ratio range. * Use smart name truncation: 123456789012.c -> 123456789.c.gz instead of 12345678901.gz * With --force, let zcat pass non gzip'ed data unchanged (zcat == cat) * Added the zgrep shell script. * Made sub.c useful for 16 bit sound, 24 bit images, etc.. * Suppress warnings about suffix for gunzip -r, except with --verbose. * On MSDOS, use .gz extension when possible (files without extension) * Moved the sample programs to a subdirectory sample. * Added a "Special targets" section in INSTALL. Major changes from 1.1.1 to 1.1.2. * Fix serious bug for VMS (-gz not removed when decompressing). * Allow suffix other than .gz in znew. * Do not display compression ratio when decompressing stdin. * In zmore.in, work around brain damaged stty -g (Ultrix). * Display a correct compression ratio for .Z files. * Added .z to .gz renaming script in INTALL. * Allow setting CFLAGS in configure. Major changes from 1.1 to 1.1.1. * Fix serious bug in vms.c (affects Vax/VMS only). * Added --ascii option. * Add workaround in configure.in for Ultrix (quote eval argument) Major changes from 1.0.7 to 1.1. * Use .gz suffix by default, add --suffix option. * Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS). * Quit when reading garbage from stdin instead of reporting an error. * Added makefile for VAX/MMS and support for wildcards on VMS. * Added support for MSC under OS/2. * Added support for Prime/PRIMOS. * Display compression ratio also when decompressing (with --verbose). * Quit after --version (GNU standard) * Use --force to bypass isatty() check * Continue processing other files in case of recoverable error. * Added comparison of zip and gzip in the readme file. * Added small sample programs (ztouch, sub, add) * Use less memory when compiled with -DSMALL_MEM (for MSDOS). * Remove the "off by more than one minute" timestamp kludge Major changes from 1.0.6 to 1.0.7. * Allow zmore to read from standard input (like more). * Support the 68000 (Atari ST) in match.S. * Retry partial writes (required on Linux when gzip is suspended in a pipe). * Allow full pathnames and renamings in gzexe. * Don't let gzexe compress setuid executables or gzip itself. * Added vms/Makefile.gcc for gcc on the Vax. * Allow installation of binaries and shell scripts in different dirs. * Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more") * Allow installation of zcat as gzcat. * Several small changes for portability to old or weird systems. * Suppress help message and send compressed data to the terminal when gzip is invoked without parameters and without redirection. * Add compile option GNU_STANDARD to respect the GNU coding standards: with -DGNU_STANDARD, behave as gzip even if invoked under the name gunzip. (I don't like the last two changes, which were requested by the FSF.) Major changes from 1.0.5 to 1.0.6. * Let gzexe detect executables that are already gzexe'd. * Keep file attributes in znew and gzexe if cpmod is available. * Don't try restoring record format on VMS (1.0.5 did not work correctly) * Added asm version for 68000 in amiga/match.a. Use asm version for Atari TT and NeXT. * For OS/2, assume HPFS by default, add flag OS2FAT if necessary. * Fixed some bugs in zdiff and define zcmp as a link to zdiff. Major changes from 1.0.4 to 1.0.5. * For VMS, restore the file type for variable record format, otherwise extract in fixed length format (not perfect, but better than forcing all files to be in stream_LF format). * For VMS, use "-z" default suffix and accept a version number in file names. * For Unix, allow compression of files with name ending in 'z'. Use only .z, .*-z, .tgz, .taz as valid gzip extensions. In the last two cases, extract to .tar by default. * On some versions of MSDOS, files with a 3 character extension could not be compressed. * Garbage collect files in /tmp created by gzexe. * Fix the 'OS code' byte in the gzip header. * For the Amiga, add the missing utime.h and add support for gcc. Major changes from 1.0.3 to 1.0.4. * Added optimized asm version for 68020. * Add support for DJGPP. * Add support for the Atari ST. * Added zforce to rename gzip'ed files with truncated names. * Do not install with name uncompress (some systems rely on the absence of any check in the old uncompress). * Added missing function (fcfree) in msdos/tailor.c * Let gunzip handle .tgz files, and let gzip skip them. * Added -d option (decompress) for gzexe and try preserving file permissions. * Suppress all warnings with -q. * Use GZIP_OPT for VMS to avoid conflict with program name. * ... and many other small changes (see ChangeLog) Major changes from 1.0.2 to 1.0.3 * Added -K option for znew to keep old .Z files if smaller * Added -q option (quiet) to cancel -v in GZIP env variable. * Made gzexe safer on systems with filename limitation to 14 chars. * Fixed bugs in handling of GZIP env variable and incorrect free with Turbo C. Major changes from 1.0.1 to 1.0.2 * Added env variable GZIP for default options. Example: for sh: GZIP="-8 -v"; export GZIP for csh: setenv GZIP "-8 -v" * Added support for the Amiga. * znew now keeps the old .Z if it is smaller than the .z file. This can happen for some large and very redundant files. * Do not complain about trailing garbage for record oriented IO (Vax/VMS). This implies however that multi-part gzip files are not supported on such systems. * Added gzexe to compress rarely used executables. * Reduce memory usage (required for MSDOS and useful on all systems). * Preserve timestamp in znew -P (pipe option) if touch -r works. Major changes from 1.0 to 1.0.1 * fix trivial errors in the Borland makefile (msdos/Makefile.bor) Major changes from 0.8.2 to 1.0 * gzip now runs on Vax/VMS * gzip will not not overwrite files without -f when using /bin/sh in background. * Support the test option -t for compressed (.Z) files. Allow some data recovery for bad .Z files. * Added makefiles for MSDOS (Only tested for MSC, not Borland). * still more changes to configure for several systems Major changes from 0.8.1 to 0.8.2: * yet more changes to configure for Linux and other systems * Allow zcat on a file with multiple links. Major changes from 0.8 to 0.8.1: * znew has now a pipe option -P to reduce the disk space requirements, but this option does not preserve timestamps. * Fixed some #if directives for compilation with TurboC. Major changes from 0.7 to 0.8: * gzip can now extract .z files created by 'pack'. * configure should no longer believe that every machine is a 386 * Fix the entry for /etc/magic in INSTALL. * Add patch for GNU tar 1.11.1 and a pointer to crypt++.el * Uncompress files with multiple links only with -f. * Fix for uncompress of .Z files on 16-bit machines * Create a correct output name for file names of exactly N-1 chars when the system has a limit of N chars. Major changes from 0.6 to 0.7: * Use "make check" instead of "make test". * Keep timestamp and pass options to gzip in znew. * Do not create .z.z files with gzip -r. * Allow again gunzip .zip files (was working in 0.5) * Allow again compilation with TurboC 2.0 (was working in 0.4) Major changes form 0.5 to 0.6: * gunzip reported an error when extracting certain .z files. The .z files produced by gzip 0.5 are correct and can be read by gunzip 0.6. * gunzip now supports multiple compressed members within a single .z file. * Fix the check for i386 in configure. * Added "make test" to check for compiler bugs. (gcc -finline-functions is broken at least on the NeXT.) * Use environment variable PAGER in zmore if it is defined. * Accept gzcat in addition to zcat for people having /usr/bin before /usr/local/bin in their path. ======================================================================== Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2018 Free Software Foundation, Inc. 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If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . fdl-1.3.txt000064400000054662152531231150006364 0ustar00 GNU Free Documentation License Version 1.3, 3 November 2008 Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 0. PREAMBLE The purpose of this License is to make a manual, textbook, or other functional and useful document "free" in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others. This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software. We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference. 1. APPLICABILITY AND DEFINITIONS This License applies to any manual or other work, in any medium, that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. Such a notice grants a world-wide, royalty-free license, unlimited in duration, to use that work under the conditions stated herein. The "Document", below, refers to any such manual or work. Any member of the public is a licensee, and is addressed as "you". You accept the license if you copy, modify or distribute the work in a way requiring permission under copyright law. A "Modified Version" of the Document means any work containing the Document or a portion of it, either copied verbatim, or with modifications and/or translated into another language. A "Secondary Section" is a named appendix or a front-matter section of the Document that deals exclusively with the relationship of the publishers or authors of the Document to the Document's overall subject (or to related matters) and contains nothing that could fall directly within that overall subject. (Thus, if the Document is in part a textbook of mathematics, a Secondary Section may not explain any mathematics.) The relationship could be a matter of historical connection with the subject or with related matters, or of legal, commercial, philosophical, ethical or political position regarding them. The "Invariant Sections" are certain Secondary Sections whose titles are designated, as being those of Invariant Sections, in the notice that says that the Document is released under this License. If a section does not fit the above definition of Secondary then it is not allowed to be designated as Invariant. The Document may contain zero Invariant Sections. If the Document does not identify any Invariant Sections then there are none. The "Cover Texts" are certain short passages of text that are listed, as Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document is released under this License. A Front-Cover Text may be at most 5 words, and a Back-Cover Text may be at most 25 words. A "Transparent" copy of the Document means a machine-readable copy, represented in a format whose specification is available to the general public, that is suitable for revising the document straightforwardly with generic text editors or (for images composed of pixels) generic paint programs or (for drawings) some widely available drawing editor, and that is suitable for input to text formatters or for automatic translation to a variety of formats suitable for input to text formatters. A copy made in an otherwise Transparent file format whose markup, or absence of markup, has been arranged to thwart or discourage subsequent modification by readers is not Transparent. An image format is not Transparent if used for any substantial amount of text. A copy that is not "Transparent" is called "Opaque". Examples of suitable formats for Transparent copies include plain ASCII without markup, Texinfo input format, LaTeX input format, SGML or XML using a publicly available DTD, and standard-conforming simple HTML, PostScript or PDF designed for human modification. Examples of transparent image formats include PNG, XCF and JPG. Opaque formats include proprietary formats that can be read and edited only by proprietary word processors, SGML or XML for which the DTD and/or processing tools are not generally available, and the machine-generated HTML, PostScript or PDF produced by some word processors for output purposes only. The "Title Page" means, for a printed book, the title page itself, plus such following pages as are needed to hold, legibly, the material this License requires to appear in the title page. For works in formats which do not have any title page as such, "Title Page" means the text near the most prominent appearance of the work's title, preceding the beginning of the body of the text. The "publisher" means any person or entity that distributes copies of the Document to the public. A section "Entitled XYZ" means a named subunit of the Document whose title either is precisely XYZ or contains XYZ in parentheses following text that translates XYZ in another language. (Here XYZ stands for a specific section name mentioned below, such as "Acknowledgements", "Dedications", "Endorsements", or "History".) To "Preserve the Title" of such a section when you modify the Document means that it remains a section "Entitled XYZ" according to this definition. The Document may include Warranty Disclaimers next to the notice which states that this License applies to the Document. These Warranty Disclaimers are considered to be included by reference in this License, but only as regards disclaiming warranties: any other implication that these Warranty Disclaimers may have is void and has no effect on the meaning of this License. 2. VERBATIM COPYING You may copy and distribute the Document in any medium, either commercially or noncommercially, provided that this License, the copyright notices, and the license notice saying this License applies to the Document are reproduced in all copies, and that you add no other conditions whatsoever to those of this License. You may not use technical measures to obstruct or control the reading or further copying of the copies you make or distribute. However, you may accept compensation in exchange for copies. If you distribute a large enough number of copies you must also follow the conditions in section 3. You may also lend copies, under the same conditions stated above, and you may publicly display copies. 3. COPYING IN QUANTITY If you publish printed copies (or copies in media that commonly have printed covers) of the Document, numbering more than 100, and the Document's license notice requires Cover Texts, you must enclose the copies in covers that carry, clearly and legibly, all these Cover Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on the back cover. Both covers must also clearly and legibly identify you as the publisher of these copies. The front cover must present the full title with all words of the title equally prominent and visible. You may add other material on the covers in addition. Copying with changes limited to the covers, as long as they preserve the title of the Document and satisfy these conditions, can be treated as verbatim copying in other respects. If the required texts for either cover are too voluminous to fit legibly, you should put the first ones listed (as many as fit reasonably) on the actual cover, and continue the rest onto adjacent pages. If you publish or distribute Opaque copies of the Document numbering more than 100, you must either include a machine-readable Transparent copy along with each Opaque copy, or state in or with each Opaque copy a computer-network location from which the general network-using public has access to download using public-standard network protocols a complete Transparent copy of the Document, free of added material. If you use the latter option, you must take reasonably prudent steps, when you begin distribution of Opaque copies in quantity, to ensure that this Transparent copy will remain thus accessible at the stated location until at least one year after the last time you distribute an Opaque copy (directly or through your agents or retailers) of that edition to the public. It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document. 4. MODIFICATIONS You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version: A. Use in the Title Page (and on the covers, if any) a title distinct from that of the Document, and from those of previous versions (which should, if there were any, be listed in the History section of the Document). You may use the same title as a previous version if the original publisher of that version gives permission. B. List on the Title Page, as authors, one or more persons or entities responsible for authorship of the modifications in the Modified Version, together with at least five of the principal authors of the Document (all of its principal authors, if it has fewer than five), unless they release you from this requirement. C. State on the Title page the name of the publisher of the Modified Version, as the publisher. D. Preserve all the copyright notices of the Document. E. Add an appropriate copyright notice for your modifications adjacent to the other copyright notices. F. Include, immediately after the copyright notices, a license notice giving the public permission to use the Modified Version under the terms of this License, in the form shown in the Addendum below. G. Preserve in that license notice the full lists of Invariant Sections and required Cover Texts given in the Document's license notice. H. Include an unaltered copy of this License. I. Preserve the section Entitled "History", Preserve its Title, and add to it an item stating at least the title, year, new authors, and publisher of the Modified Version as given on the Title Page. If there is no section Entitled "History" in the Document, create one stating the title, year, authors, and publisher of the Document as given on its Title Page, then add an item describing the Modified Version as stated in the previous sentence. J. Preserve the network location, if any, given in the Document for public access to a Transparent copy of the Document, and likewise the network locations given in the Document for previous versions it was based on. These may be placed in the "History" section. You may omit a network location for a work that was published at least four years before the Document itself, or if the original publisher of the version it refers to gives permission. K. For any section Entitled "Acknowledgements" or "Dedications", Preserve the Title of the section, and preserve in the section all the substance and tone of each of the contributor acknowledgements and/or dedications given therein. L. Preserve all the Invariant Sections of the Document, unaltered in their text and in their titles. Section numbers or the equivalent are not considered part of the section titles. M. Delete any section Entitled "Endorsements". Such a section may not be included in the Modified Version. N. Do not retitle any existing section to be Entitled "Endorsements" or to conflict in title with any Invariant Section. O. Preserve any Warranty Disclaimers. If the Modified Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections in the Modified Version's license notice. These titles must be distinct from any other section titles. You may add a section Entitled "Endorsements", provided it contains nothing but endorsements of your Modified Version by various parties--for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard. You may add a passage of up to five words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous publisher that added the old one. The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply endorsement of any Modified Version. 5. COMBINING DOCUMENTS You may combine the Document with other documents released under this License, under the terms defined in section 4 above for modified versions, provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodified, and list them all as Invariant Sections of your combined work in its license notice, and that you preserve all their Warranty Disclaimers. The combined work need only contain one copy of this License, and multiple identical Invariant Sections may be replaced with a single copy. If there are multiple Invariant Sections with the same name but different contents, make the title of each such section unique by adding at the end of it, in parentheses, the name of the original author or publisher of that section if known, or else a unique number. Make the same adjustment to the section titles in the list of Invariant Sections in the license notice of the combined work. In the combination, you must combine any sections Entitled "History" in the various original documents, forming one section Entitled "History"; likewise combine any sections Entitled "Acknowledgements", and any sections Entitled "Dedications". You must delete all sections Entitled "Endorsements". 6. COLLECTIONS OF DOCUMENTS You may make a collection consisting of the Document and other documents released under this License, and replace the individual copies of this License in the various documents with a single copy that is included in the collection, provided that you follow the rules of this License for verbatim copying of each of the documents in all other respects. You may extract a single document from such a collection, and distribute it individually under this License, provided you insert a copy of this License into the extracted document, and follow this License in all other respects regarding verbatim copying of that document. 7. AGGREGATION WITH INDEPENDENT WORKS A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distribution medium, is called an "aggregate" if the copyright resulting from the compilation is not used to limit the legal rights of the compilation's users beyond what the individual works permit. When the Document is included in an aggregate, this License does not apply to the other works in the aggregate which are not themselves derivative works of the Document. If the Cover Text requirement of section 3 is applicable to these copies of the Document, then if the Document is less than one half of the entire aggregate, the Document's Cover Texts may be placed on covers that bracket the Document within the aggregate, or the electronic equivalent of covers if the Document is in electronic form. Otherwise they must appear on printed covers that bracket the whole aggregate. 8. TRANSLATION Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Document, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the original version will prevail. If a section in the Document is Entitled "Acknowledgements", "Dedications", or "History", the requirement (section 4) to Preserve its Title (section 1) will typically require changing the actual title. 9. TERMINATION You may not copy, modify, sublicense, or distribute the Document except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense, or distribute it is void, and will automatically terminate your rights under this License. However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, receipt of a copy of some or all of the same material does not give you any rights to use it. 10. FUTURE REVISIONS OF THIS LICENSE The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See http://www.gnu.org/copyleft/. Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License "or any later version" applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation. If the Document specifies that a proxy can decide which future versions of this License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Document. 11. RELICENSING "Massive Multiauthor Collaboration Site" (or "MMC Site") means any World Wide Web server that publishes copyrightable works and also provides prominent facilities for anybody to edit those works. A public wiki that anybody can edit is an example of such a server. A "Massive Multiauthor Collaboration" (or "MMC") contained in the site means any set of copyrightable works thus published on the MMC site. "CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 license published by Creative Commons Corporation, a not-for-profit corporation with a principal place of business in San Francisco, California, as well as future copyleft versions of that license published by that same organization. "Incorporate" means to publish or republish a Document, in whole or in part, as part of another Document. An MMC is "eligible for relicensing" if it is licensed under this License, and if all works that were first published under this License somewhere other than this MMC, and subsequently incorporated in whole or in part into the MMC, (1) had no cover texts or invariant sections, and (2) were thus incorporated prior to November 1, 2008. The operator of an MMC Site may republish an MMC contained in the site under CC-BY-SA on the same site at any time before August 1, 2009, provided the MMC is eligible for relicensing. ADDENDUM: How to use this License for your documents To use this License in a document you have written, include a copy of the License in the document and put the following copyright and license notices just after the title page: Copyright (c) YEAR YOUR NAME. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace the "with...Texts." line with this: with the Invariant Sections being LIST THEIR TITLES, with the Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. If you have Invariant Sections without Cover Texts, or some other combination of the three, merge those two alternatives to suit the situation. If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.