Fuzz introspector: fuzz_base64_encode
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 UA_base64 [function] [call site] 00001
2 UA_malloc [function] [call site] 00002
2 UA_base64_buf [function] [call site] 00003
1 free [function] [call site] 00004