Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
24	24	3 : View List ['__errno_location', 'realloc', 'iconv']	24	28	str_cd_iconv	call site: 00118	/src/libidn/lib/gl/striconv.c:276
8	12	3 : View List ['__errno_location', 'rpl_free', 'iconv']	12	16	str_cd_iconv	call site: 00122	/src/libidn/lib/gl/striconv.c:309
2	2	1 : View List ['__errno_location']	2	2	str_iconv	call site: 00109	/src/libidn/lib/gl/striconv.c:373
0	0	None	12	356	idna_to_ascii_4z	call site: 00083	/src/libidn/lib/idna.c:537
0	0	None	12	16	str_cd_iconv	call site: 00117	/src/libidn/lib/gl/striconv.c:274
0	0	None	6	307	stringprep	call site: 00020	/src/libidn/lib/stringprep.c:433
0	0	None	4	12	stringprep	call site: 00055	/src/libidn/lib/stringprep.c:452
0	0	None	2	58	idna_to_ascii_4i	call site: 00063	/src/libidn/lib/idna.c:158
0	0	None	2	2	str_cd_iconv	call site: 00113	/src/libidn/lib/gl/striconv.c:250
0	0	None	2	2	idna_to_ascii_4z	call site: 00077	/src/libidn/lib/idna.c:494
0	0	None	2	2	idna_to_ascii_4z	call site: 00078	/src/libidn/lib/idna.c:504
0	0	None	0	259	stringprep_4i	call site: 00022	/src/libidn/lib/stringprep.c:201

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           __assert_fail

[call site] 00001


           __assert_fail

[call site] 00002


           __assert_fail

[call site] 00003


           idna_to_ascii_4i

[function] [call site] 00004


             stringprep_ucs4_to_utf8

[function] [call site] 00005


               g_ucs4_to_utf8

[function] [call site] 00006


                 g_unichar_to_utf8

[function] [call site] 00007


             strlen

[call site] 00008


             realloc

[call site] 00009


             rpl_free

[function] [call site] 00010


               __errno_location

[call site] 00011


               __errno_location

[call site] 00012


             stringprep

[function] [call site] 00013


               strlen

[call site] 00014


               rpl_free

[function] [call site] 00015


               stringprep_utf8_to_ucs4

[function] [call site] 00016


                 strlen

[call site] 00017


                 u8_check

[function] [call site] 00018


                 g_utf8_to_ucs4_fast

[function] [call site] 00019


               realloc

[call site] 00020


               rpl_free

[function] [call site] 00021


               stringprep_4i

[function] [call site] 00022


                 stringprep_ucs4_nfkc_normalize

[function] [call site] 00023


                   stringprep_ucs4_to_utf8

[function] [call site] 00024


                   _g_utf8_normalize_wc

[function] [call site] 00025


                     g_utf8_get_char

[function] [call site] 00026


                     decompose_hangul

[function] [call site] 00027


                     find_decomposition

[function] [call site] 00028


                     g_utf8_strlen

[function] [call site] 00029


                     g_utf8_get_char

[function] [call site] 00030


                     decompose_hangul

[function] [call site] 00031


                     find_decomposition

[function] [call site] 00032


                     g_utf8_get_char

[function] [call site] 00033


                     g_unicode_canonical_ordering

[function] [call site] 00034


                     g_unicode_canonical_ordering

[function] [call site] 00035


                     combine

[function] [call site] 00036


                       combine_hangul

[function] [call site] 00037


                   rpl_free

[function] [call site] 00038


                 rpl_free

[function] [call site] 00039


                 rpl_free

[function] [call site] 00040


                 stringprep_find_string_in_table

[function] [call site] 00041


                   stringprep_find_character_in_table

[function] [call site] 00042


                     bsearch

[call site] 00043


                     _compare_table_element

[function] [call site] 00044


                 stringprep_find_string_in_table

[function] [call site] 00045


                 stringprep_apply_table_to_string

[function] [call site] 00046


                   stringprep_find_string_in_table

[function] [call site] 00047


                 stringprep_find_string_in_table

[function] [call site] 00048


                 stringprep_find_string_in_table

[function] [call site] 00049


                 stringprep_find_string_in_table

[function] [call site] 00050


                 stringprep_find_character_in_table

[function] [call site] 00051


                 stringprep_find_character_in_table

[function] [call site] 00052


               rpl_free

[function] [call site] 00053


               stringprep_ucs4_to_utf8

[function] [call site] 00054


               rpl_free

[function] [call site] 00055


               strlen

[call site] 00056


               rpl_free

[function] [call site] 00057


               strcpy

[call site] 00058


               rpl_free

[function] [call site] 00059


             stringprep

[function] [call site] 00060


             rpl_free

[function] [call site] 00061


             stringprep_utf8_to_ucs4

[function] [call site] 00062


             rpl_free

[function] [call site] 00063


             rpl_free

[function] [call site] 00064


             rpl_free

[function] [call site] 00065


             rpl_free

[function] [call site] 00066


             rpl_free

[function] [call site] 00067


             punycode_encode

[function] [call site] 00068


               encode_basic

[function] [call site] 00069


               encode_digit

[function] [call site] 00070


               encode_digit

[function] [call site] 00071


               adapt

[function] [call site] 00072


             rpl_free

[function] [call site] 00073


             rpl_free

[function] [call site] 00074


             strlen

[call site] 00075


           idna_to_ascii_4i

[function] [call site] 00076


           idna_to_ascii_4z

[function] [call site] 00077


             strcpy

[call site] 00078


             strcpy

[call site] 00079


             idna_to_ascii_4i

[function] [call site] 00080


             rpl_free

[function] [call site] 00081


             strlen

[call site] 00082


             realloc

[call site] 00083


             rpl_free

[function] [call site] 00084


             strcat

[call site] 00085


             strcat

[call site] 00086


             strdup

[call site] 00087


           idn_free

[function] [call site] 00088


             rpl_free

[function] [call site] 00089


           idna_to_ascii_4z

[function] [call site] 00090


           idn_free

[function] [call site] 00091


           idna_to_ascii_8z

[function] [call site] 00092


             stringprep_utf8_to_ucs4

[function] [call site] 00093


             idna_to_ascii_4z

[function] [call site] 00094


             rpl_free

[function] [call site] 00095


           idn_free

[function] [call site] 00096


           idna_to_ascii_8z

[function] [call site] 00097


           idn_free

[function] [call site] 00098


           idna_to_ascii_lz

[function] [call site] 00099


             stringprep_locale_to_utf8

[function] [call site] 00100


               stringprep_locale_charset

[function] [call site] 00101


                 getenv

[call site] 00102


                 nl_langinfo

[call site] 00103


               stringprep_convert

[function] [call site] 00104


                 str_iconv

[function] [call site] 00105


                   c_strcasecmp

[function] [call site] 00106


                     c_tolower

[function] [call site] 00107


                     c_tolower

[function] [call site] 00108


                   strdup

[call site] 00109


                   __errno_location

[call site] 00110


                   iconv_open

[call site] 00111


                   str_cd_iconv

[function] [call site] 00112


                     strlen

[call site] 00113


                     __errno_location

[call site] 00114


                     iconv

[call site] 00115


                     iconv

[call site] 00116


                     __errno_location

[call site] 00117


                     __errno_location

[call site] 00118


                     __errno_location

[call site] 00119


                     realloc

[call site] 00120


                     __errno_location

[call site] 00121


                     iconv

[call site] 00122


                     __errno_location

[call site] 00123


                     __errno_location

[call site] 00124


                     realloc

[call site] 00125


                     __errno_location

[call site] 00126


                     realloc

[call site] 00127


                     rpl_free

[function] [call site] 00128


                   __errno_location

[call site] 00129


                   iconv_close

[call site] 00130


                   __errno_location

[call site] 00131


                   iconv_close

[call site] 00132


                   rpl_free

[function] [call site] 00133


             idna_to_ascii_8z

[function] [call site] 00134


             rpl_free

[function] [call site] 00135


           idn_free

[function] [call site] 00136


           idna_to_ascii_lz

[function] [call site] 00137


           idn_free

[function] [call site] 00138