Activity for p7zip
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Sam Tansy posted a comment on ticket #241
7zip has Linux version now, (v23) and seems to manage that thing well. P7zip 17.xx is somewhat maintained here.
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Yonghang modified a comment on ticket #241
is there any update on this CVE?
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is there any update on this CVE? And @Peng, I'm not able to reproduce the same error as you did. could you give more details on your setup? Thanks.
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is there any update on this CVE? And @Peng, I'm not able to reproduce the same errors as you did. could you give more details on your setup? Thanks.
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Have you tried 7zip? It has Linux version now, v23 for that matter, so this may be better option than here. P7zip 17.xx is somewhat maintained here.
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Have you tried 7zip? It has Linux version now, v23 for that matter, so this may be better option than here. P7zip 17.xx is somewhat maintained here.
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unxed posted a comment on ticket #187
libnatspec can be used as alternative solution. https://github.com/Etersoft/libnatspec
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Mark A Paley posted a comment on discussion Open Discussion
Here's what I did to get Nautilus and Archive Manager (file-roller) in Ubuntu 22.04 to update to use 7-Zip 22.01: Download https://7-zip.org/a/7z2201-linux-x64.tar.xz In the Terminal (Ctrl-Alt-T) copy and paste the following commands: sudo apt-get install p7zip-full sudo 7z e 7z2201-linux-x64.tar.xz 7z2201-linux-x64.tar sudo 7z e -o/usr/lib/p7zip -y 7z2201-linux-x64.tar 7zz 7zzs sudo echo exec /usr/lib/p7zip/7zz '"$@"' > 7z sudo mv 7z /bin/7z sudo chmod ugo+rx /usr/lib/p7zip/7zz /usr/lib/p7zip/7zzs...
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alecxs posted a comment on discussion Help
there is a v22 fork github.com/p7zip-project/p7zip
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Dan Essin posted a comment on ticket #226
Whatever this was/is it "should do it" but it doesn't This is precisely what is in the downloaded code and it does not compile. Generates the same errors as above.
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prakashp modified a comment on discussion Help
Hi, How to get the latest p7zip version source? We see some vulnerabilities that are addressed in 18.0+ versions, but the version of p7zip showing here is at 16.02 https://nvd.nist.gov/vuln/detail/CVE-2017-17969 Thank you.
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Hi, How to get the latest p7zip version? We see some vulnerabilities that are addressed in 18.0+ versions, but the version of p7zip showing here is at 16.02 https://nvd.nist.gov/vuln/detail/CVE-2017-17969 Thank you.
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William Yo posted a comment on discussion Help
We find some large zip files cannot be extract on 16.02 but can on 9.20. If you use command to test this zip file will get header error. # 7z t 1.zip 7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21 p7zip Version 16.02 (locale=zh_HK.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz (906E9),ASM,AES-NI) Scanning the drive for archives: 1 file, 6834330434 bytes (6518 MiB) Testing archive: 1.zip ERRORS: Headers Error -- Path = 1.zip Type = zip ERRORS:...
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Peng Deng created ticket #241
Heap-buffer-overflow in ZipIn.cpp:1116
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An mac posted a comment on discussion Help
How do I preserve the timestamps of android folders when transferring to windows PC ?
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New versions (tested 21, 22) seems to be immune to all five (#236 .. #240) your tests
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New versions (tested 21, 22) seems to be immune to all five (#236 .. #240) your tests
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Michael Lackner created ticket #48
Support for larger LZMA2 dictionary sizes
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aONe posted a comment on ticket #238
This project is mostly defunct. Did you check this in the updated 7z 21.07? https://7-zip.org/a/7z2107-src.tar.xz This applies to all your other threads. Here all the availbable sources: https://www.7-zip.org/download.html
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Nico Schiller created ticket #240
Invalid read and SIGSEGV during processing of 7zip archive
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Invalid read during processing of 7zip archive
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Invalid read during processing of 7zip archive
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Invalid read and SIGSEGV during processing of 7zip archive
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Invalid read and SIGSEGV during processing of 7zip archive
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Nils Bars created ticket #235
SIGSEGV during processing of 7zip archive
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SIGSEGV during the processing 7zip archive
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Bob Freeman posted a comment on discussion Open Discussion
I need to compress around 35-40Gb of data every weekend. There are roughly 150 files and each file contains records of variable length - between 21 and 52 bytes. Each file is for one day. Each record starts with 1 byte type and 7 byte of unix datestamp with usecs, hence first 3 bytes are going to be static for each record type (there are 4 types) throughout each file. Types are coming in random order. Distribution of types: Len(b) %% 21 38.3 48 34.9 27 22.9 52 3.9 Compression takes a lot of time...
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Thank you! -mmt=4 works - I have now 100% use of all 3 CPUs
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Igor Pavlov modified a comment on discussion Open Discussion
-mx9 -mmt3 uses about 2 threads. You can try -mmt4. It will use about 4 threads, if the data set is big. Or you can use -mx3 -mmt3 for fast compression with 3 threads.
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-mx9 -mmt3 uses about 2 threads. You can try -mmt4. It will use about 4 threads, if the data set is big. Or you can use -mx3 -mmt3. it fast compression with 3 threads.
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I am using this on CentOS 9: 7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21 p7zip Version 16.02 (locale=en_GB.utf8,Utf16=on,HugeFiles=on,64 bits,3 CPUs AMD EPYC Processor (830F10),ASM,AES-NI) command: 7za a -mx=9 -mmt=3 .. but average CPU usage is 61%.. There is no discernable disk IO queues and 80% free RAM. You say LZMA uses 3 threads with mx=9 Why cant I achieve higher CPU usage?
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I am using this on CentOS: 7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21 p7zip Version 16.02 (locale=en_GB.utf8,Utf16=on,HugeFiles=on,64 bits,3 CPUs AMD EPYC Processor (830F10),ASM,AES-NI) command: 7za a -mx=9 -mmt=3 .. but average CPU usage is 61%.. There is no discernable disk IO queues and 80% free RAM. You say LZMA uses 3 threads with mx=9 Why cant I achieve higher CPU usage?
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Chris Putnam posted a comment on ticket #233
This bug was reported 13 years ago so I'm not holding my breath: https://sourceforge.net/p/p7zip/bugs/87/
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p7zip ignores umask when creating directories
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Masoud Shokoh posted a comment on ticket #194
to submite latest LZMA SDK
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Astha posted a comment on discussion Open Discussion
I'm using an open source GitHub project AndroidP7Zip which is an Android wrapper over p7zip to support zip, 7zip and other archive formats for Android project. From android side implementation we pass the commands to the C++ code through JNI, like for extract we use following string as extract, compress command: String.format("7z x '%s' '-o%s' -aoa", archivePath, outPath); // extract String.format("7z a -t%s '%s' '%s'", type, outPath, filePath) // Compress Similarly, I need to know the commands for...
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Like we have command "add param -p" to add password to a zip/7zip file , what is the command to know if the file is password protected? And how to extract a password protected file with passing the correct password? I want to know the commands. Thanks, Astha
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Riccardo La Marca created ticket #232
Add the switch that allows you not to buffer the data.
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Shanthini posted a comment on discussion Help
Hi Jerome, can i check if you managed to fix this?? I am facing similar issue to execute python script in SSIS Linux
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Fonic posted a comment on ticket #229
The patch modifies source file GUI/p7zipForFilemanager (as mentioned in the description and also within the patch file itself).
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What file is this patch for?
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That is just a fork of someone based on the old code base. The author of 7-Zip (which p7zip was based on) recently added native Linux support, so that's what I'll be going with.
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You may want to check if it's not corrected in p7zip on github. It's unmaintained here for long time.
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You may want to check if it's not corrected in p7zip on github. It's unmaintained here for long time.
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What does it do? You may want to check if it's not corrected in p7zip on github. It's unmaintained here for long time.
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dcb created ticket #231
ArchiveCommandLine.cpp:396:10: warning: duplicated 'if' condition
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Rick Sayre posted a comment on ticket #230
Perhaps a more proper patch would be appropriate; the makefile hack is meant to get 'er done for those in desperation. --- CPP/7zip/UI/Console/UserInputUtils.cpp-orig 2021-08-28 11:17:36.276419390 +0000 +++ CPP/7zip/UI/Console/UserInputUtils.cpp 2021-08-28 22:23:57.045170137 +0000 @@ -89,12 +89,21 @@ outStream->Flush(); } #ifdef ENV_HAVE_GETPASS +#if defined(__sun) + AString oemPassword = getpassphrase(""); +#else AString oemPassword = getpass(""); +#endif + if ( (verify) && (outStream) ) { (*outStream)...
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Password silently truncated to 8 chars when entered via terminal on Solaris
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Screenshots
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[Fix] Errors when trying to compress single item via file manager on Linux
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David Korczynski posted a comment on discussion Open Discussion
Thanks for the notification! I set it up and proposed the idea here https://sourceforge.net/p/sevenzip/discussion/45797/thread/3cc8b5a2ce
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Upstream 7-Zip is getting Linux support, thus it would probably make more sense to fuzz upstream sources instead of the old and unmaintained p7zip sources.
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Upstream 7-Zip is getting Linux support, thus it would probably make more sense to fuzz upstream sources instead of the old and unmaintained p7zip sources.
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Pete posted a comment on discussion Open Discussion
@ipavlov has released an Alpha version of LZMA SDK 21.02. The major feature is POSIX compatibility which makes the source easy to build on Linux and Mac systems. The x86 Assembler code is still MASM compatible, but the ARM code uses gcc buildable .S code. In my lrzip-next 21.02 branch, I have updated the ASM source for nasm compatibility, removed Windows code, and pretty-formatted everything for enhanced readability. (NB. lrzip-next is a detached fork of Con Kolivas' lrzip project with many improvements...
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You can try here: p7zip, on github. It is pretty alive there.
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Thanks for the quick reply, and that sounds good to me - I would be happy to do that if @ipavlov would be happy to have it fuzzed. Let me know @ipavlov.
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This project seems pretty inactive, but maybe you can do this "fuzzing" for the new @ipavlov's 7zz: https://sourceforge.net/p/sevenzip/discussion/45797/thread/7fe6c21efa
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Hi, It would be great to fuzz p7zip for any potential vulnerabilities and bugs, is this something you are interested in? I set up fuzzing by way of OSS-Fuzz here: https://github.com/google/oss-fuzz/pull/5899 OSS-Fuzz is a free service run by Google that continuously fuzzes important open source projects. I set up two initial fuzzers for p7zip, one for lzma decoding and one for utilities. I can set up more fuzzers down the line f you are interested. The goal of the fuzzing is to find any memory corruption...
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You can use info-zip: $ zip -r -q -y - foo/ | pv > foo.zip
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You can use unzip -p.
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No Sam. The 19.00 SDK is not consistent with p7zip. You must use SDK 19.00 files. I was not able to upgrade p7zip. However, I limited myself to the C code and a small subset of LZMA files.
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I have tried that with p7zip. So there are changes to MtCoder. and --- p7zip_16.04/C/MtCoder.h 2018-07-04 13:00:00.000000000 +0200 +++ p7zip_16.04+lzma-19.00/C/MtCoder.h 2021-04-04 00:47:29.000000000 +0200 @@ -12,7 +12,7 @@ EXTERN_C_BEGIN if ( defined MTCODER__USE_WRITE_THREAD) : main thread writes all data blocks to output stream if (not defined MTCODER__USE_WRITE_THREAD) : any coder thread can write data blocks to output stream */ -/* #define MTCODER__USE_WRITE_THREAD */ +#define MTCODER__USE_WRITE_THREAD...
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I have tried that with p7zip. So there are changes to MtCoder. and --- p7zip_16.04/C/MtCoder.h 2018-07-04 13:00:00.000000000 +0200 +++ p7zip_16.04+lzma-19.00/C/MtCoder.h 2021-04-04 00:47:29.000000000 +0200 @@ -12,7 +12,7 @@ EXTERN_C_BEGIN if ( defined MTCODER__USE_WRITE_THREAD) : main thread writes all data blocks to output stream if (not defined MTCODER__USE_WRITE_THREAD) : any coder thread can write data blocks to output stream */ -/* #define MTCODER__USE_WRITE_THREAD */ +#define MTCODER__USE_WRITE_THREAD...
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I have tried that with p7zip. So there are changes to MtCoder. and --- p7zip_16.04/C/MtCoder.h 2018-07-04 13:00:00.000000000 +0200 +++ p7zip_16.04+lzma-19.00/C/MtCoder.h 2021-04-04 00:47:29.000000000 +0200 @@ -12,7 +12,7 @@ EXTERN_C_BEGIN if ( defined MTCODER__USE_WRITE_THREAD) : main thread writes all data blocks to output stream if (not defined MTCODER__USE_WRITE_THREAD) : any coder thread can write data blocks to output stream */ -/* #define MTCODER__USE_WRITE_THREAD */ +#define MTCODER__USE_WRITE_THREAD...
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Thanks, i will.
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@tansy, the 19.00 SDK introduced some new features. Perhaps take a peek at my github for lrzip-next, goto src/lzma/ASM/x86. Here's the file in any event. HTH
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Can you @pete show ../x86/7zAsm.asm? I tried to convert it to test it with p7zip but not successfully. Nasm is not my cup of tea.
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Only with zip files though. When using 7z it's fine, program ignores inaccessible file and moves on. $ echo -n "1" > 1; echo -n "22" > 22 $ chmod 0000 22 $ rm *.7z; ./7za a 12b.7z 1 22 Scanning the drive: 2 files, 3 bytes (1 KiB) Creating archive: 12b.7z Items to compress: 2 WARNING: Permission denied 22 Files read from disk: 2 Archive size: 134 bytes (1 KiB) WARNINGS for files: 22 : Permission denied ---------------- WARNING: Cannot open 1 file Back to the problem, I tried to use gdb and strace...
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Only with zip files though. When using 7z it's fine, program ignores inaccessible file and moves on. $ chmod 0000 22 $ rm *.7z; ./7za a 12b.7z 1 22 Scanning the drive: 2 files, 3 bytes (1 KiB) Creating archive: 12b.7z Items to compress: 2 WARNING: Permission denied 22 Files read from disk: 2 Archive size: 134 bytes (1 KiB) WARNINGS for files: 22 : Permission denied ---------------- WARNING: Cannot open 1 file Back to the problem, I tried to use gdb and strace and all I found put is this: in gdb program...
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Only with zip files though. When using 7z it's fine, program ignores inaccessible file and moves on. $ chmod 0000 22 $ rm *.7z; ./7za a 12b.7z 1 22 Scanning the drive: 2 files, 3 bytes (1 KiB) Creating archive: 12b.7z Items to compress: 2 WARNING: Permission denied 22 Files read from disk: 2 Archive size: 134 bytes (1 KiB) WARNINGS for files: 22 : Permission denied ---------------- WARNING: Cannot open 1 file Back to the problem, I tried to use gdb and strace and all I found put is this: in gdb program...
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TwoMoonBrew posted a comment on discussion Help
Hi - Using Redhat 7.9 7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21 p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs AMD Ryzen Threadripper 1950X 16-Core Processor (800F11),ASM,AES-NI) I have a directory with a bunch of libraries and symbolic links. If I create the archive with this command, everything is fine, and links are preserved: 7z a /data/foo.zip -bb3 -snl -mx3 -tzip . on extraction of foo.zip, i see symbolic links: find . -name "libapr*"...
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md-work posted a comment on ticket #152
Still a problem in p7zip-16.02. Proposal: The "WARNING: Permission denied" is good. But afterwards 7z should continue the compression for the readable files. And finally 7z should exit with an exit code != 0. Tested on openSUSE-15.2: 7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21 p7zip Version 16.02 (locale=C,Utf16=off,HugeFiles=on,64 bits,2 CPUs QEMU Virtual CPU version 2.5+ (663),ASM) Open archive: ../rw/test.zip -- Path = ../rw/test.zip Type = zip Physical Size = 22 Scanning...
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Rado posted a comment on discussion Help
The newer version is available in AUR, I'll download it from there. Just 2 questions for clarification though: • the asterisk with the quotes comes after the file name, not before? • 7za is one word? Not "7z a"?
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I didn't know these existed, I'll check them out. Thanks!
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halo117nachos posted a comment on discussion Help
Typically, p7zip's executable binaries are located in /usr/share/lib/p7zip, /usr/local/share/lib/p7zip, /usr/lib/p7zip, or somewhere similar (depending on how it was packaged, and/or whether you built it from source yourself), with the 7z.so library file being in the same location. Since this location is not likely to be in the PATH variable, these binaries come with shell scripts to pass arguments to commands with explicit arguments. For instance: #! /bin/sh exec /usr/lib/p7zip/7z "$@" The above...
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This sounds like the kind of usecase that the unix program xargs was meant for. Try the following: find ./123 -type f \( -iname '*.txt' -o -iname '*.txt1' \) -printf "%p\0" | xargs -r -0 7z a -p'1123123' -m0=lzma2 -mx=9 -mfb=64 -md32m -ms=on -mhe=on $archive_title.7z; You might need to add a -s [number] argument to xargs before the 7z argument if you have a lot of files being read from stdin, or else xargs will call 7z multiple times, processing a different batch of files each time, which would create...
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This sounds like the kind of usecase that the unix program xargs was meant for. Try the following: find ./123 -type f \( -iname '*.txt' -o -iname '*.txt1' \) -printf "%p\0" | xargs -r -0 7z a -p'1123123' -m0=lzma2 -mx=9 -mfb=64 -md32m -ms=on -mhe=on $archive_title.7z; You might need to add a -s [number] argument to xargs before the 7z argument if you have a lot of files being read from stdin, or else xargs will call 7z multiple times, processing a different batch of files each time, which would create...
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This sounds like the kind of usecase that the unix program xargs was meant for. Try the following: find ./123 -type f \( -iname '*.txt' -o -iname '*.txt1' \) -printf "%f\0" | xargs -r -0 7z a -p'1123123' -m0=lzma2 -mx=9 -mfb=64 -md32m -ms=on -mhe=on $archive_title.7z; You might need to add a -s [number] argument to xargs before the 7z argument if you have a lot of files being read from stdin, or else xargs will call 7z multiple times, processing a different batch of files each time, which would create...
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You could try writing your archive to stdout, and redirecting it to a file. Of course, I say this on the assumption that the archive you're trying to write supports this (the *.7z file format doesn't, AFAIK). I find this particularly useful when crating xz-compressed tar files: tar cf - some_directory | 7za a . -si -so -txz > some_file.tar.xz This will allow you to overwrite files without 7za even knowing that it is overwriting files. Of course, you won't get any "are you sure you want to overwrite...
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You could try writing your archive to stdout, and redirecting it to a file. Of course, I say this on the assumption that the archive you're trying to write supports this (*.7z files don't, AFAIK). I find this particularly useful when crating xz-compressed tar files: tar cf - some_directory | 7za a . -si -so -txz > some_file.tar.xz This will allow you to overwrite files without 7za even knowing that it is overwriting files. Of course, you won't get any "are you sure you want to overwrite this file?"...
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teoberi modified a comment on discussion Help
I ask a moderator to delete my last comments / comment changes! To remain only: "There are some changes! https://github.com/szcnick/p7zip -> https://github.com/jinfeihan57/p7zip Maybe szcnick withdrew from the project?"
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I ask a moderator to delete my last comments / comment changes! To remain only: "There are some changes! Https://github.com/szcnick/p7zip -> https://github.com/jinfeihan57/p7zip Maybe szcnick withdrew from the project?"
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Joy Jin posted a comment on discussion Help
It seems like 16.02 doesn't recognise the format.
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So 16.02 probably can work for your tasks.
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I was mainly looking to decompress a BDMV disc (iso with udf) and it's incredibly slow to mount it and copy it to another folder.
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The latest version of 7z source I can find is version 16.02. There is no source code and macOS version for later versions. Is it available? If so, can anyone point me to a link for download?
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That feature was improvced on 7-Zip 17.01. So you can try Windows version of 7-Zip 20.02 via wine.
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six thousand posted a comment on discussion Help
I am trying to use 7zip to create a ZIP format archive (due to rigid project specs) and pipe the stdout through pv for IO throttling, is this possible? Something like: 7za a -so -tzip -an foo/ | pv -L 10m > foo.zip Presently with v 16.02 the above command fails with: System ERROR: E_NOTIMPL Any direction would be greatly appreciated.
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Fei Xue posted a comment on discussion Help
Hi How does symbol links stored in 7z archive? the destination of the links needs to be comrpessed? I use 7za to compress an symbol links and hexdump the archive, see the destination string stored in PackedStream part. But when I compress two symbol links I see no litteral string of destination in it, but seems like compressed stream stored in it. Any doc related ? Thank you.
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Tesf modified a comment on discussion Help
"If you want a new version of p7zip: checkout this page https://www.7-zip.org/links.html OR just click here https://github.com/szcnick/p7zip, they fix some CVE BUG and plan to do more". -- Jeff Han, 2020-05-15
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"If you want a new version of p7zip: checkout this page https://www.7-zip.org/links.html OR just click here https://github.com/szcnick/p7zip, they fix some CVE BUG.and plan to do more". -- Jeff Han
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low 16 bits for windows attributes high 16 bits for posix attributes. So one 32-bit value can store both versions of attributes.
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Hi I am new to p7zip. I compress something with 7za and dump the archive and found the Attribute is an uint32_t. I search the codes and found statement like this: st_mode = Attribute << 16. I don't understand what the attribute means and what the permission (like 0755 or 0644) are converted into this field ? Thank you.
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try 7z or xz format in 7-Zip and -mx1 or -mx3 switch