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 ['realloc', '__errno_location', 'iconv']	24	28	str_cd_iconv	call site: 00000	/src/libidn/lib/gl/striconv.c:297
8	12	3 : View List ['__errno_location', 'rpl_free', 'iconv']	12	16	str_cd_iconv	call site: 00000	/src/libidn/lib/gl/striconv.c:334
2	2	1 : View List ['strlen']	2	175	stringprep_utf8_nfkc_normalize	call site: 00096	/src/libidn/lib/nfkc.c:1072
2	2	1 : View List ['__errno_location']	2	2	str_iconv	call site: 00000	/src/libidn/lib/gl/striconv.c:399
0	0	None	12	16	str_cd_iconv	call site: 00000	/src/libidn/lib/gl/striconv.c:295
0	0	None	6	307	stringprep	call site: 00018	/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	276	stringprep_profile	call site: 00008	/src/libidn/lib/stringprep.c:506
0	0	None	2	2	str_cd_iconv	call site: 00000	/src/libidn/lib/gl/striconv.c:266
0	0	None	2	2	tld_get_table	call site: 00077	/src/libidn/lib/tld.c:64
0	0	None	0	259	stringprep_4i	call site: 00020	/src/libidn/lib/stringprep.c:201
0	0	None	0	259	stringprep_4i	call site: 00050	/src/libidn/lib/stringprep.c:296

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           __assert_fail

[call site] 00001


           __assert_fail

[call site] 00002


           __assert_fail

[call site] 00003


           stringprep_check_version

[function] [call site] 00004


             strverscmp

[call site] 00005


           stringprep_profile

[function] [call site] 00006


             strlen

[call site] 00007


             strcmp

[call site] 00008


             rpl_free

[function] [call site] 00009


             strcpy

[call site] 00010


             stringprep

[function] [call site] 00011


               strlen

[call site] 00012


               rpl_free

[function] [call site] 00013


               stringprep_utf8_to_ucs4

[function] [call site] 00014


                 strlen

[call site] 00015


                 u8_check

[function] [call site] 00016


                 g_utf8_to_ucs4_fast

[function] [call site] 00017


               realloc

[call site] 00018


               rpl_free

[function] [call site] 00019


               stringprep_4i

[function] [call site] 00020


                 stringprep_ucs4_nfkc_normalize

[function] [call site] 00021


                   stringprep_ucs4_to_utf8

[function] [call site] 00022


                     g_ucs4_to_utf8

[function] [call site] 00023


                       g_unichar_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


             rpl_free

[function] [call site] 00060


           idn_free

[function] [call site] 00061


             rpl_free

[function] [call site] 00062


           pr29_8z

[function] [call site] 00063


             stringprep_utf8_to_ucs4

[function] [call site] 00064


             pr29_4z

[function] [call site] 00065


               pr29_4

[function] [call site] 00066


                 first_column

[function] [call site] 00067


                 combinationclass

[function] [call site] 00068


                 in_last_column_row

[function] [call site] 00069


             rpl_free

[function] [call site] 00070


           tld_get_z

[function] [call site] 00071


             strlen

[call site] 00072


             calloc

[call site] 00073


             tld_get_4

[function] [call site] 00074


           idn_free

[function] [call site] 00075


           tld_default_table

[function] [call site] 00076


             tld_get_table

[function] [call site] 00077


               strcmp

[call site] 00078


             tld_get_table

[function] [call site] 00079


           tld_check_8z

[function] [call site] 00080


             stringprep_utf8_to_ucs4

[function] [call site] 00081


             tld_check_4

[function] [call site] 00082


               tld_get_4

[function] [call site] 00083


               tld_default_table

[function] [call site] 00084


               rpl_free

[function] [call site] 00085


               tld_check_4t

[function] [call site] 00086


                 _tld_checkchar

[function] [call site] 00087


             rpl_free

[function] [call site] 00088


           tld_check_lz

[function] [call site] 00089


             stringprep_locale_to_utf8

[function] [call site] 00090


               stringprep_locale_charset

[function] [call site] 00091


                 getenv

[call site] 00092


                 nl_langinfo

[call site] 00093


             tld_check_8z

[function] [call site] 00094


             rpl_free

[function] [call site] 00095


           stringprep_utf8_nfkc_normalize

[function] [call site] 00096


             strlen

[call site] 00097


             u8_check

[function] [call site] 00098


             g_utf8_normalize

[function] [call site] 00099


               _g_utf8_normalize_wc

[function] [call site] 00100


               g_ucs4_to_utf8

[function] [call site] 00101


               rpl_free

[function] [call site] 00102


           idn_free

[function] [call site] 00103


           stringprep_utf8_to_unichar

[function] [call site] 00104


             g_utf8_get_char

[function] [call site] 00105


           stringprep_unichar_to_utf8

[function] [call site] 00106


             g_unichar_to_utf8

[function] [call site] 00107


           stringprep

[function] [call site] 00108


           stringprep

[function] [call site] 00109


           __assert_fail

[call site] 00110


           stringprep_4zi

[function] [call site] 00111


             stringprep_4zi_1

[function] [call site] 00112


               stringprep_4i

[function] [call site] 00113


           tld_get_4z

[function] [call site] 00114


             tld_get_4

[function] [call site] 00115


           idn_free

[function] [call site] 00116


           tld_check_4tz

[function] [call site] 00117


             tld_check_4t

[function] [call site] 00118


           tld_check_4z

[function] [call site] 00119


             tld_check_4

[function] [call site] 00120