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2015-03-17Merge branch 'essen/zlib-windowbits'Zandra Hird
* essen/zlib-windowbits: Update zlib:zwindowbits/0 type to accept 8 and -8 OTP-12564
2015-03-03Update zlib:zwindowbits/0 type to accept 8 and -8Loïc Hoguin
Commit 7e8f5a776cbfa376e03369d058a90c8dd9f217fc (importing R11B-3) updated zlib, which had changed what values it accepts for window bits from 9-15 to 8-15. From deflate.c: - windowBits < 9 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_HUFFMAN_ONLY) { + windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || + strategy < 0 || strategy > Z_FIXED) { return Z_STREAM_ERROR; } + if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ In inflate.c 8 was already an accepted value. This commit updates OTP to also accept the values 8 and -8.
2015-02-12Add zlib limited output buffer size functionalityСергей Прохоров
This functionality may be useful for compressed streams with high compression ratio (in case of gzip it may be up to x1000), when small amount of compressed data will produce large amount of uncompressed output. This may lead to DoS attacks, because server easily goes out of memory. Example of such high compression ratio stream: ``` dd if=/dev/zero of=sparse.bin bs=1MB count=100 # 100mb of zeroes gzip sparse.bin # 95kb sparse.bin.gz $ erl > {ok, Compressed} = file:read_file("sparse.bin.gz"), > 97082 = size(Compressed), > Uncompressed = zlib:gunzip(Compressed), > 100000000 = iolist_size(Uncompressed). ```
2014-11-10Fix a typo in the zlib documentationSina Samavati
2014-01-16Add the 'rle' zstrategyBjörn Gustavsson
2013-04-19Convert XML files to UTF-8Hans Bolinder
2011-09-02Update documentation and specifications of some of the zlib functionsHans Bolinder
The functions zlib:deflateSetDictionary/2 and zlib:inflateSetDictionary/2 accept iodata() as Dictionary. The functions zlib:crc32/2,3, zlib:adler32/2,3, zlib:compress/1, zlib:uncompress/1, zlib:zip/1, and zlib:unzip/1 accept iodata() as data.
2011-06-20Add more specs and typesHans Bolinder
An incorrect spec, rpc:yield/1, has been fixed.
2010-02-10OTP-8422 Removed bogus "\011" character sequence in documentation.Hans Bolinder
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP