how to use pjf fuzz a json parse binary ?

[mseclab]

how to use pjf fuzz a json parse binary ?

[docfate111]

I am trying to fuzz a binary https://github.com/amzn/ion-c. Is there a way to fuzz into a file and then run the ./jsonparser on the file?

[docfate111]

pjf --auto --no-logo > f
while [ $? -eq 0 ]; do
      echo "fuzzing"
      pjf --auto --no-logo > f
     ./jsonparsebyargument f
done
echo "found crash"

This is the script I am using now. Is there a built-in feature that does this?