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yoshuawuyts's profile
yosh
yosh
yosh
@yoshuawuyts

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yosh

@yoshuawuyts

Software researcher. he/they

Berlin, UTC+2
blog.yoshuawuyts.com
Joined May 2009

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    yosh‏ @yoshuawuyts Jan 24
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    Does anyone know of any protocols that mix endianness? Could imagine something like sticking a texture buffer inside of some framing could qualify here for example. Curious if anyone knows of any practical examples.

    4:27 PM - 24 Jan 2020 from Berlin, Germany
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      2. Chris Dickinson‏ @isntitvacant Jan 24
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        Replying to @yoshuawuyts

        iirc git uses network byte order in packfiles for counts, but varint (of many flavors) elsewhere which is little-endian

        2 replies 0 retweets 2 likes
      3. yosh‏ @yoshuawuyts Jan 24
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        Replying to @isntitvacant

        Ohh, yes that would make for a perfect example. Thank you! Reason why I was asking is b/c someone proposed an endianness API that makes you choose between parsing everything as little-endian OR as big-endian which would be overly restrictive. This helps back that up ^^

        0 replies 0 retweets 2 likes
      4. End of conversation
      1. Alex Wilson‏ @arekinath Jan 24
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        Replying to @yoshuawuyts

        Microsoft RDP has PDUs that mix endianness, ASN.1 styles (PER/BER), lengths being exclusive/inclusive of the length bytes... basically anything you can think of between the different layers, it does it both ways

        0 replies 0 retweets 1 like
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      1. Lucien‏‏ @LPGhatguy Jan 24
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        Replying to @yoshuawuyts

        The Roblox binary model format mixes endianness, and also interleaves bytes from lists of numbers to make them compress better!

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      2. Lachezar Lechev (  🚀 &  ⛓️ w/  🦀 )‏ @elpiel_ Jan 25
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        Replying to @yoshuawuyts

        Idk about endianness, but I know protocols that mix the ordering of bits (i.e. MSB and LSB), like the one I am looking into - ARNIC 429 😅

        1 reply 0 retweets 1 like
      3. Lachezar Lechev (  🚀 &  ⛓️ w/  🦀 )‏ @elpiel_ Jan 25
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        Replying to @elpiel_ @yoshuawuyts

        By MSB and LSB understand **bit** not byte 😅

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. konobi‏ @konobi Jan 24
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        Replying to @yoshuawuyts

        Some of the older protocols had some oddness about endianness, though I can't remember which protocol sparked my memory of it... but looks like modbus might be one: https://64k.space/2019/09/30/the-modbus-crc-endianness-kerfuffle/ …

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