The function avro_schema_from_json() takes in a const char* and a length parameter, but it appears that the length parameter is ignored.
We have a project where the schema is a binary resource compiled into the executable, and is not guaranteed to have a null terminator at the end.
This did not appear to be an issue because the function had a length parameter.
The other day, It kept throwing errors about characters that were not in the file at all.
Suspecting it was running off the end of the file, I had a look at the Avro-C code and found that even though the function takes in a length parameter, it does not use it and expects a null terminator.