Code should avoid using the _sscanf, _strlen, and _fopen APIs

The binary may contain the following insecure API(s) _sscanf , _strlen , _fopen.

The tools that report these issues tend to be
overly-simplistic in their scans;
for example, finding custom functions with
these names and assuming they refer to the
standard library functions.
Many of Flutter’s third-party dependencies have
functions with similar names that trip these checks.
It’s possible that some occurrences are valid concerns,
but it’s impossible to tell from the output of these tools
due to the sheer number of false positives.

Code should use calloc (instead of _malloc) for memory allocations

The binary may use _malloc function instead of calloc.