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: 00110	/src/libidn/lib/gl/striconv.c:276
8	12	3 : View List ['__errno_location', 'rpl_free', 'iconv']	12	16	str_cd_iconv	call site: 00114	/src/libidn/lib/gl/striconv.c:309
2	2	1 : View List ['strlen']	2	175	stringprep_utf8_nfkc_normalize	call site: 00128	/src/libidn/lib/nfkc.c:1052
2	2	1 : View List ['__errno_location']	2	2	str_iconv	call site: 00101	/src/libidn/lib/gl/striconv.c:373
0	0	None	12	16	str_cd_iconv	call site: 00109	/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: 00057	/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: 00105	/src/libidn/lib/gl/striconv.c:250
0	0	None	2	2	tld_get_table	call site: 00079	/src/libidn/lib/tld.c:64
0	0	None	0	259	stringprep_4i	call site: 00022	/src/libidn/lib/stringprep.c:201
0	0	None	0	259	stringprep_4i	call site: 00052	/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


               __errno_location

[call site] 00010


               __errno_location

[call site] 00011


             strcpy

[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_ucs4_to_utf8

[function] [call site] 00025


                       g_unichar_to_utf8

[function] [call site] 00026


                   _g_utf8_normalize_wc

[function] [call site] 00027


                     g_utf8_get_char

[function] [call site] 00028


                     decompose_hangul

[function] [call site] 00029


                     find_decomposition

[function] [call site] 00030


                     g_utf8_strlen

[function] [call site] 00031


                     g_utf8_get_char

[function] [call site] 00032


                     decompose_hangul

[function] [call site] 00033


                     find_decomposition

[function] [call site] 00034


                     g_utf8_get_char

[function] [call site] 00035


                     g_unicode_canonical_ordering

[function] [call site] 00036


                     g_unicode_canonical_ordering

[function] [call site] 00037


                     combine

[function] [call site] 00038


                       combine_hangul

[function] [call site] 00039


                   rpl_free

[function] [call site] 00040


                 rpl_free

[function] [call site] 00041


                 rpl_free

[function] [call site] 00042


                 stringprep_find_string_in_table

[function] [call site] 00043


                   stringprep_find_character_in_table

[function] [call site] 00044


                     bsearch

[call site] 00045


                     _compare_table_element

[function] [call site] 00046


                 stringprep_find_string_in_table

[function] [call site] 00047


                 stringprep_apply_table_to_string

[function] [call site] 00048


                   stringprep_find_string_in_table

[function] [call site] 00049


                 stringprep_find_string_in_table

[function] [call site] 00050


                 stringprep_find_string_in_table

[function] [call site] 00051


                 stringprep_find_string_in_table

[function] [call site] 00052


                 stringprep_find_character_in_table

[function] [call site] 00053


                 stringprep_find_character_in_table

[function] [call site] 00054


               rpl_free

[function] [call site] 00055


               stringprep_ucs4_to_utf8

[function] [call site] 00056


               rpl_free

[function] [call site] 00057


               strlen

[call site] 00058


               rpl_free

[function] [call site] 00059


               strcpy

[call site] 00060


               rpl_free

[function] [call site] 00061


             rpl_free

[function] [call site] 00062


           idn_free

[function] [call site] 00063


             rpl_free

[function] [call site] 00064


           pr29_8z

[function] [call site] 00065


             stringprep_utf8_to_ucs4

[function] [call site] 00066


             pr29_4z

[function] [call site] 00067


               pr29_4

[function] [call site] 00068


                 first_column

[function] [call site] 00069


                 combinationclass

[function] [call site] 00070


                 in_last_column_row

[function] [call site] 00071


             rpl_free

[function] [call site] 00072


           tld_get_z

[function] [call site] 00073


             strlen

[call site] 00074


             calloc

[call site] 00075


             tld_get_4

[function] [call site] 00076


           idn_free

[function] [call site] 00077


           tld_default_table

[function] [call site] 00078


             tld_get_table

[function] [call site] 00079


               strcmp

[call site] 00080


             tld_get_table

[function] [call site] 00081


           tld_check_8z

[function] [call site] 00082


             stringprep_utf8_to_ucs4

[function] [call site] 00083


             tld_check_4

[function] [call site] 00084


               tld_get_4

[function] [call site] 00085


               tld_default_table

[function] [call site] 00086


               rpl_free

[function] [call site] 00087


               tld_check_4t

[function] [call site] 00088


                 _tld_checkchar

[function] [call site] 00089


             rpl_free

[function] [call site] 00090


           tld_check_lz

[function] [call site] 00091


             stringprep_locale_to_utf8

[function] [call site] 00092


               stringprep_locale_charset

[function] [call site] 00093


                 getenv

[call site] 00094


                 nl_langinfo

[call site] 00095


               stringprep_convert

[function] [call site] 00096


                 str_iconv

[function] [call site] 00097


                   c_strcasecmp

[function] [call site] 00098


                     c_tolower

[function] [call site] 00099


                     c_tolower

[function] [call site] 00100


                   strdup

[call site] 00101


                   __errno_location

[call site] 00102


                   iconv_open

[call site] 00103


                   str_cd_iconv

[function] [call site] 00104


                     strlen

[call site] 00105


                     __errno_location

[call site] 00106


                     iconv

[call site] 00107


                     iconv

[call site] 00108


                     __errno_location

[call site] 00109


                     __errno_location

[call site] 00110


                     __errno_location

[call site] 00111


                     realloc

[call site] 00112


                     __errno_location

[call site] 00113


                     iconv

[call site] 00114


                     __errno_location

[call site] 00115


                     __errno_location

[call site] 00116


                     realloc

[call site] 00117


                     __errno_location

[call site] 00118


                     realloc

[call site] 00119


                     rpl_free

[function] [call site] 00120


                   __errno_location

[call site] 00121


                   iconv_close

[call site] 00122


                   __errno_location

[call site] 00123


                   iconv_close

[call site] 00124


                   rpl_free

[function] [call site] 00125


             tld_check_8z

[function] [call site] 00126


             rpl_free

[function] [call site] 00127


           stringprep_utf8_nfkc_normalize

[function] [call site] 00128


             strlen

[call site] 00129


             u8_check

[function] [call site] 00130


             g_utf8_normalize

[function] [call site] 00131


               _g_utf8_normalize_wc

[function] [call site] 00132


               g_ucs4_to_utf8

[function] [call site] 00133


               rpl_free

[function] [call site] 00134


           idn_free

[function] [call site] 00135


           stringprep_utf8_to_unichar

[function] [call site] 00136


             g_utf8_get_char

[function] [call site] 00137


           stringprep_unichar_to_utf8

[function] [call site] 00138


             g_unichar_to_utf8

[function] [call site] 00139


           stringprep

[function] [call site] 00140


           stringprep

[function] [call site] 00141


           __assert_fail

[call site] 00142


           stringprep_4zi

[function] [call site] 00143


             stringprep_4zi_1

[function] [call site] 00144


               stringprep_4i

[function] [call site] 00145


           tld_get_4z

[function] [call site] 00146


             tld_get_4

[function] [call site] 00147


           idn_free

[function] [call site] 00148


           tld_check_4tz

[function] [call site] 00149


             tld_check_4t

[function] [call site] 00150


           tld_check_4z

[function] [call site] 00151


             tld_check_4

[function] [call site] 00152