status-im/nimPNG
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fixes #20, unreliable readStr

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andri lim 2018-05-17 11:04:40 +07:00
parent 55a444cf5a
commit efa7a47576
2 changed files with 2 additions and 2 deletions
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nimPNG.nim
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@ -896,7 +896,7 @@ proc parsePNG(s: Stream, settings: PNGDecoder): PNG =
let length = s.readInt32BE() let length = s.readInt32BE()
let chunkType = PNGChunkType(s.readInt32BE()) let chunkType = PNGChunkType(s.readInt32BE())
let data = s.readStr(length) let data = if length == 0: "" else: s.readStr(length)
let crc = cast[uint32](s.readInt32BE()) let crc = cast[uint32](s.readInt32BE())
let calculatedCRC = crc32(crc32(0, $chunkType), data) let calculatedCRC = crc32(crc32(0, $chunkType), data)
if calculatedCRC != crc and not PNGDecoder(png.settings).ignoreCRC: if calculatedCRC != crc and not PNGDecoder(png.settings).ignoreCRC:

2
nimPNG.nimble
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@ -1,5 +1,5 @@
# Package # Package
version = "0.2.1" version = "0.2.2"
author = "Andri Lim" author = "Andri Lim"
description = "PNG encoder and decoder" description = "PNG encoder and decoder"
license = "MIT" license = "MIT"