Extract XML From Binary

Question

I have a binary file that contains xmldata in bytes 2-43. How would I go about extracting that data to a file?

I am able to extract small integer fields doing something like this:

Row.TenderNumber = BitConverter.ToInt16(Row.RawBytesraw, 44);

However, I don't know how to extract xml data from this file. Any help is appreciated.

Ani · Accepted Answer · 2012-12-12 16:23:00Z

1

Something like this ought to work

    using (var stream = new MemoryStream(<byte[] here>))
    using (var reader = new StreamReader(stream))
    {
        var buffer = new char[41];
        stream.Seek(<offset where string begins>, SeekOrigin.Begin);
        reader.Read(buffer, 0, 41);
        <mystringVariable> = new string(buffer);
    }

I wrote it in C# but you get the idea.

edited Dec 12, 2012 at 16:23

answered Dec 12, 2012 at 15:22

Ani

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2 Comments

user1389739 Over a year ago

So in your example, how would I take bytes 2-43 from Row.RawBytesraw and output that to a variable?

BrainSlugs83 Over a year ago

actually, I mean if you have the array of bytes that only contains bytes 2 - 43, you can just return new StreamReader(new MemoryStream(myBytes)).ReadToEnd(); -- this will autodetect the encoding etc -- now that will only be a string of course -- optionally you could just skip the string and pass the memory stream into your xml parser -- or you could keep the string and pass it into your xml parser instead. -- Just a matter of choice.

Community · Accepted Answer · 2017-05-23 11:55:58Z

1

xml data is just text with correct formatting. If you can extract bytes from file, you can convert them into string. And string can be XML.

Have a look on this question: binary file to string

edited May 23, 2017 at 11:55

CommunityBot

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answered Dec 12, 2012 at 15:22

trailmax

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1 Comment

user1389739 Over a year ago

I don't understand what you linked. I mentioned it was a file, but it is actually coming from a database. When I attempted to implement what was in your link, it was just blank.

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