mdejong / lzmasdk Goto Github PK

Hello ,

I have a base64 string which I am converting to nsdata and that nsdata is in 7zip format , I want to decompress the data

can you point me to correct direction

How difficult would it be to add 7z archival functionality to this sdk? I know it can extract, but as far as I can tell there is no functionality for writing. Is it possible to do?

how to compress files with this sdk?

I hava a directory 7z file, when I execute your program，the directory is missing.

I want to be "/tmp/Extract7z/a/b/c/xx.mp3"
But now the results is "/tmp/Extract7z/xx.mp3"

what should i do？

I would like to unzip a 7z file with a password

How to unzip password protected .7z compressed files in ios

hello ,

I am glad that you replied , I wanted to ask one question,

I need to write my nsdata to a file . the file should be a 7z or any text file is also possible .

this is the code I have used

here I am writing my base64 decoded data in your filename.7z and after that I am using the LZMAExtractor to get its contents

NSString *tmpDirname = @"Extract7z";
NSString *archiveFilename = @"yourfilename.7z";
NSString *archiveResPath = [NSTemporaryDirectory()stringByAppendingPathComponent:archiveFilename];

[decodedData writeToFile:archiveResPath atomically:YES];

NSAssert(archiveResPath, @"can't find test.7z");

NSArray *contents = [LZMAExtractor extract7zArchive:archiveResPath tmpDirName:tmpDirname];

while extracting it is getting crashed

can you help me please

When I unzip the 7z file，the app crash！The problem here
if (InFile_Open(&archiveStream.file, archivePath))
{
PrintError("can not open input file");
return 1;
}

2015-10-23 09:08:53.370 XHEnglishBrushStudent[14250:2712290] ---downloadUpdate>>>DownloaProgress,45 $$$ DownloaUnique,44 $$$ DownloadTitle,正在解压数据文件...
2015-10-23 09:08:53.378 XHEnglishBrushStudent[14250:2712290] Error: Error Domain=NSCocoaErrorDomain Code=4 "未能完成操作。（“Cocoa”错误 4。）" UserInfo=0x1742f2f00 {NSSourceFilePathErrorKey=/var/mobile/Containers/Data/Application/2D4AE180-C3B7-41C2-9F7A-566700DD876C/Documents/xuehai/2747/databases/ep.xh.yystwteach/book_exam44.100fen, NSUserStringVariant=(
Move
), NSDestinationFilePath=/var/mobile/Containers/Data/Application/2D4AE180-C3B7-41C2-9F7A-566700DD876C/Documents/xuehai/2747/databases/ep.xh.yystwteach/book_exam44.7z, NSFilePath=/var/mobile/Containers/Data/Application/2D4AE180-C3B7-41C2-9F7A-566700DD876C/Documents/xuehai/2747/databases/ep.xh.yystwteach/book_exam44.100fen, NSUnderlyingError=0x174442a90 "未能完成该操作。No such file or directory"}
2015-10-23 09:08:53.379 XHEnglishBrushStudent[14250:2712290] cd to /var/mobile/Containers/Data/Application/2D4AE180-C3B7-41C2-9F7A-566700DD876C/Documents/xuehai/2747/databases/ep.xh.yystwteach/tmp

/--------------------------------------------bt message-------------------------------------------------------------------/

• thread #31: tid = 0x2962e2, 0x000000010038e674 XHEnglishBrushStudent`do7z_extract_entry(archivePath=0x000000017018d5e0, archiveCachePath=0x0000000170342a20, entryName=0x0000000000000000, entryPath=0x0000000000000000, fullPaths=1) + 160 at 7zMain.c:558, queue = 'com.zhitongyun.IMMngrTaskQueue', stop reason = EXC_BREAKPOINT (code=1, subcode=0xe7ffdefe)
  • frame #0: 0x000000010038e674 XHEnglishBrushStudentdo7z_extract_entry(archivePath=0x000000017018d5e0, archiveCachePath=0x0000000170342a20, entryName=0x0000000000000000, entryPath=0x0000000000000000, fullPaths=1) + 160 at 7zMain.c:558 frame #1: 0x0000000100390ae0 XHEnglishBrushStudent+[LZMAExtractor extract7zArchive:dirName:preserveDir:](self=0x00000001007b1f48, _cmd=0x00000001006af0e2, archivePath=0x0000000144e8eaf0, dirName=0x0000000144e6f450, preserveDir=true) + 2880 at LZMAExtractor.m:138
    frame #2: 0x00000001004f7a88 XHEnglishBrushStudent-[SevenZipHelper unZip:archiveDir:](self=0x0000000170018ff0, _cmd=0x00000001006ba491, file=0x0000000144e8eaf0, archiveDir=0x0000000144e6f450) + 124 at SevenZipHelper.m:31 frame #3: 0x00000001004eeb38 XHEnglishBrushStudent__45-[ExamDownloadManager execDBDataFileCompress]_block_invoke(.block_descriptor=) + 560 at ExamDownloadManager.m:445
    frame #4: 0x0000000100c30fd4 libdispatch.dylib_dispatch_call_block_and_release + 24 frame #5: 0x0000000100c30f94 libdispatch.dylib_dispatch_client_callout + 16
    frame #6: 0x0000000100c3bdb8 libdispatch.dylib_dispatch_queue_drain + 780 frame #7: 0x0000000100c342c4 libdispatch.dylib_dispatch_queue_invoke + 132
    frame #8: 0x0000000100c3e5d4 libdispatch.dylib_dispatch_root_queue_drain + 772 frame #9: 0x0000000100c40248 libdispatch.dylib_dispatch_worker_thread3 + 132
    frame #10: 0x0000000196f8d21c libsystem_pthread.dylib`_pthread_wqthread + 816
    (lldb)