addisoncrump commented on PR #49451:
URL: https://github.com/apache/arrow/pull/49451#issuecomment-3999195775

   > There's no way to tell the IPC file reader API to use a different schema 
for reading, because it doesn't make sense with valid IPC files.
   
   I mean in the sense of "fixing the footer"; if we know what it should be, we 
can correct it in advance. This way you can still do comparisons on the rest of 
the data.
   
   You might look into `LLVMFuzzerCustomMutator` and 
`LLVMFuzzerCustomCrossover` (note that you _must_ do both) to do this: 
https://github.com/google/fuzzing/blob/master/docs/structure-aware-fuzzing.md
   
   Internally, you can call `LLVMFuzzerMutate`/`LLVMFuzzerCrossover` and then 
apply the fixup after the mutation from the fuzz engine.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to