Call tree
LLVMFuzzerTestOneInput /src/httrack/fuzz/fuzz-idna.c linenumber=-1
  fuzz_strdup /src/httrack/fuzz/fuzz.h linenumber=33
  hts_convertStringUTF8ToIDNA /src/httrack/src/htscharset.c linenumber=36
    realloc  linenumber=1014
    realloc  linenumber=1015
    realloc  linenumber=1016
    realloc  linenumber=1017
    nlz8 /src/httrack/src/htscharset.c linenumber=1052
    abortf_ /src/httrack/src/./htssafe.h linenumber=1052
      hts_get_error_callback /src/httrack/src/htslib.c linenumber=100
      log_abort_ /src/httrack/src/./htssafe.h linenumber=102
        fprintf  linenumber=94
        fflush  linenumber=95
      abort  linenumber=103
    abortf_ /src/httrack/src/./htssafe.h linenumber=1062
    punycode_encode /src/httrack/src/punycode.c linenumber=1077
      encode_basic /src/httrack/src/punycode.c linenumber=114
      encode_digit /src/httrack/src/punycode.c linenumber=167
      encode_digit /src/httrack/src/punycode.c linenumber=171
      adapt /src/httrack/src/punycode.c linenumber=172
    realloc  linenumber=1080
    realloc  linenumber=1100
    realloc  linenumber=1110
  hts_convertStringIDNAToUTF8 /src/httrack/src/htscharset.c linenumber=40
    strncasecmp  linenumber=1149
    punycode_decode /src/httrack/src/punycode.c linenumber=1165
      decode_digit /src/httrack/src/punycode.c linenumber=235
      adapt /src/httrack/src/punycode.c linenumber=250
    realloc  linenumber=1171
    realloc  linenumber=1186
    realloc  linenumber=1190
    realloc  linenumber=1208
    realloc  linenumber=1214
  hts_isStringIDNA /src/httrack/src/htscharset.c linenumber=43
    strncasecmp  linenumber=1129
====================================