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CsvReader.ReadNextRecord throws IndexOutOfRangeException #67

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Metalnem opened this issue Dec 24, 2018 · 2 comments
Open

CsvReader.ReadNextRecord throws IndexOutOfRangeException #67

Metalnem opened this issue Dec 24, 2018 · 2 comments

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@Metalnem
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@Metalnem Metalnem commented Dec 24, 2018

CsvReader.ReadNextRecord throws an IndexOutOfRangeException when reading the file from the attached archive. You can run the following code to reproduce it (the path variable should contain the path to the extracted file):

using (var file = File.OpenText(path))
using (var csv = new CsvReader(file, false))
{
  while (csv.ReadNextRecord()) { }
}

Found via SharpFuzz.

@fretje
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@fretje fretje commented Feb 26, 2019

That file that is attached doesn't look like a csv file... It looks like a binary file to me:

image

What exactly are you trying to accomplish?

@Metalnem
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@Metalnem Metalnem commented Feb 27, 2019

I was trying to determine if the ReadNextRecord always throws MalformedCsvException on malformed CSV inputs, and I discovered that it can sometimes throw IndexOutOfRangeException. This binary file is just one of several inputs that I managed to generate.

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