Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
None	6	56	sldns_bget_token_par	call site: 00068	/src/unbound/sldns/parse.c:298
None	6	56	sldns_bget_token_par	call site: 00068	/src/unbound/sldns/parse.c:311
None	6	56	sldns_bget_token_par	call site: 00075	/src/unbound/sldns/parse.c:384
None	4	4	sldns_b32_pton_base	call site: 00052	/src/unbound/sldns/parseutil.c:515
None	0	16	sldns_bget_token_par	call site: 00076	/src/unbound/sldns/parse.c:423
None	0	0	sldns_b32_pton_base	call site: 00052	/src/unbound/sldns/parseutil.c:540
None	0	0	sldns_b64_pton_base	call site: 00046	/src/unbound/sldns/parseutil.c:766
None	0	0	sldns_b64_pton_base	call site: 00046	/src/unbound/sldns/parseutil.c:770
None	0	0	sldns_b64_pton_base	call site: 00046	/src/unbound/sldns/parseutil.c:773
None	0	0	sldns_str2wire_str_buf	call site: 00025	/src/unbound/sldns/str2wire.c:1795
None	0	0	sldns_str2wire_b64_buf	call site: 00045	/src/unbound/sldns/str2wire.c:1907
None	0	0	sldns_str2wire_nsec_buf	call site: 00092	/src/unbound/sldns/str2wire.c:2016

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           sldns_str2wire_dname_buf

[function] [call site] 00001


             sldns_str2wire_dname_buf_rel

[function] [call site] 00002


               strlen

[call site] 00003


               sldns_parse_escape

[function] [call site] 00004


                 __ctype_b_loc

[call site] 00005


                 __ctype_b_loc

[call site] 00006


                 __ctype_b_loc

[call site] 00007


                 __ctype_b_loc

[call site] 00008


           sldns_str2wire_int8_buf

[function] [call site] 00009


             strtol

[call site] 00010


           sldns_str2wire_int16_buf

[function] [call site] 00011


             strtol

[call site] 00012


             sldns_write_uint16

[function] [call site] 00013


           sldns_str2wire_int32_buf

[function] [call site] 00014


             __errno_location

[call site] 00015


             strtol

[call site] 00016


             strtoul

[call site] 00017


             __errno_location

[call site] 00018


             sldns_write_uint32

[function] [call site] 00019


           sldns_str2wire_a_buf

[function] [call site] 00020


             inet_pton

[call site] 00021


           sldns_str2wire_aaaa_buf

[function] [call site] 00022


             inet_pton

[call site] 00023


           sldns_str2wire_str_buf

[function] [call site] 00024


             sldns_parse_char

[function] [call site] 00025


               sldns_parse_escape

[function] [call site] 00026


           sldns_str2wire_apl_buf

[function] [call site] 00027


             strlen

[call site] 00028


             strchr

[call site] 00029


             strchr

[call site] 00030


             strchr

[call site] 00031


             atoi

[call site] 00032


             strchr

[call site] 00033


             strchr

[call site] 00034


             strlcpy_unbound

[function] [call site] 00035


             inet_pton

[call site] 00036


             inet_pton

[call site] 00037


             strchr

[call site] 00038


             atoi

[call site] 00039


             sldns_write_uint16

[function] [call site] 00040


           sldns_str2wire_b64_buf

[function] [call site] 00041


             strlen

[call site] 00042


             sldns_b64_pton_calculate_size

[function] [call site] 00043


             strcmp

[call site] 00044


             sldns_b64_pton

[function] [call site] 00045


               sldns_b64_pton_base

[function] [call site] 00046


           sldns_str2wire_b32_ext_buf

[function] [call site] 00047


             strlen

[call site] 00048


             sldns_b32_pton_calculate_size

[function] [call site] 00049


             sldns_b32_pton_extended_hex

[function] [call site] 00050


               sldns_b32_pton_base

[function] [call site] 00051


                 __ctype_b_loc

[call site] 00052


                 __ctype_b_loc

[call site] 00053


           sldns_str2wire_hex_buf

[function] [call site] 00054


             __ctype_b_loc

[call site] 00055


             sldns_is_last_of_string

[function] [call site] 00056


               __ctype_b_loc

[call site] 00057


             __ctype_b_loc

[call site] 00058


             sldns_hexdigit_to_int

[function] [call site] 00059


             sldns_hexdigit_to_int

[function] [call site] 00060


           sldns_str2wire_nsec_buf

[function] [call site] 00061


             strlen

[call site] 00062


             sldns_buffer_init_frm_data

[function] [call site] 00063


             sldns_buffer_remaining

[function] [call site] 00064


               sldns_buffer_remaining_at

[function] [call site] 00065


                 sldns_buffer_invariant

[function] [call site] 00066


             sldns_bget_token

[function] [call site] 00067


               sldns_bget_token_par

[function] [call site] 00068


                 sldns_bgetc

[function] [call site] 00069


                   sldns_buffer_available_at

[function] [call site] 00070


                     sldns_buffer_remaining_at

[function] [call site] 00071


                   sldns_buffer_limit

[function] [call site] 00072


                   sldns_buffer_read_u8

[function] [call site] 00073


                     sldns_buffer_read_u8_at

[function] [call site] 00074


                 strchr

[call site] 00075


                 strchr

[call site] 00076


                 sldns_bskipcs

[function] [call site] 00077


                   sldns_buffer_available_at

[function] [call site] 00078


                   sldns_buffer_read_u8_at

[function] [call site] 00079


                 sldns_bskipcs

[function] [call site] 00080


             sldns_get_rr_type_by_name

[function] [call site] 00081


               strlen

[call site] 00082


               atoi

[call site] 00083


               strlen

[call site] 00084


               strlen

[call site] 00085


               strlen

[call site] 00086


               strlen

[call site] 00087


               strlen

[call site] 00088


               strlen

[call site] 00089


               strlen

[call site] 00090


             strcmp

[call site] 00091


             sldns_buffer_position

[function] [call site] 00092


           sldns_str2wire_type_buf

[function] [call site] 00093


             sldns_get_rr_type_by_name

[function] [call site] 00094


             strcmp

[call site] 00095


             sldns_write_uint16

[function] [call site] 00096


           sldns_str2wire_class_buf

[function] [call site] 00097


             sldns_get_rr_class_by_name

[function] [call site] 00098


               strlen

[call site] 00099


               atoi

[call site] 00100


               sldns_lookup_by_name

[function] [call site] 00101


                 strcasecmp

[call site] 00102


             strcmp

[call site] 00103


             sldns_write_uint16

[function] [call site] 00104


           sldns_str2wire_cert_alg_buf

[function] [call site] 00105


             sldns_lookup_by_name

[function] [call site] 00106


             sldns_write_uint16

[function] [call site] 00107


             sldns_str2wire_int16_buf

[function] [call site] 00108


             sldns_read_uint16

[function] [call site] 00109


           sldns_str2wire_alg_buf

[function] [call site] 00110


             sldns_lookup_by_name

[function] [call site] 00111


             sldns_str2wire_int8_buf

[function] [call site] 00112


           sldns_str2wire_tsigerror_buf

[function] [call site] 00113


             sldns_lookup_by_name

[function] [call site] 00114


             sldns_write_uint16

[function] [call site] 00115


             sldns_str2wire_int16_buf

[function] [call site] 00116


           sldns_str2wire_time_buf

[function] [call site] 00117


             strlen

[call site] 00118


             sldns_mktime_from_utc

[function] [call site] 00119


               leap_days

[function] [call site] 00120


               is_leap_year

[function] [call site] 00121


             sldns_write_uint32

[function] [call site] 00122


             strtol

[call site] 00123


             sldns_write_uint32

[function] [call site] 00124


           sldns_str2wire_tsigtime_buf

[function] [call site] 00125


             strtol

[call site] 00126


             sldns_write_uint16

[function] [call site] 00127


             sldns_write_uint32

[function] [call site] 00128


           sldns_str2wire_period_buf

[function] [call site] 00129


             sldns_str2period

[function] [call site] 00130


             sldns_write_uint32

[function] [call site] 00131


           sldns_str2wire_loc_buf

[function] [call site] 00132


             __ctype_b_loc

[call site] 00133


             strtol

[call site] 00134


             __ctype_b_loc

[call site] 00135


             __ctype_b_loc

[call site] 00136


             strtol

[call site] 00137


             __ctype_b_loc

[call site] 00138


             __ctype_b_loc

[call site] 00139


             strtod

[call site] 00140


             __ctype_b_loc

[call site] 00141


             __ctype_b_loc

[call site] 00142


             __ctype_b_loc

[call site] 00143


             strtol

[call site] 00144


             __ctype_b_loc

[call site] 00145


             __ctype_b_loc

[call site] 00146


             strtol

[call site] 00147


             __ctype_b_loc

[call site] 00148


             __ctype_b_loc

[call site] 00149


             strtod

[call site] 00150


             __ctype_b_loc

[call site] 00151


             strtod

[call site] 00152


             strlen

[call site] 00153


             loc_parse_cm

[function] [call site] 00154


               __ctype_b_loc

[call site] 00155


               strtol

[call site] 00156


               strtol

[call site] 00157


             strlen

[call site] 00158


             loc_parse_cm

[function] [call site] 00159


             strlen

[call site] 00160


             loc_parse_cm

[function] [call site] 00161


             sldns_write_uint32

[function] [call site] 00162


             sldns_write_uint32

[function] [call site] 00163


             sldns_write_uint32

[function] [call site] 00164


           sldns_str2wire_wks_buf

[function] [call site] 00165


             strlen

[call site] 00166


             sldns_buffer_init_frm_data

[function] [call site] 00167


             sldns_bget_token

[function] [call site] 00168


             ldns_tolower_str

[function] [call site] 00169


               tolower

[call site] 00170


             getprotobyname

[call site] 00171


             strcasecmp

[call site] 00172


             strcasecmp

[call site] 00173


             atoi

[call site] 00174


             strlcpy_unbound

[function] [call site] 00175


             getservbyname

[call site] 00176


             ntohs

[call site] 00177


             strcasecmp

[call site] 00178


             atoi

[call site] 00179


             strcmp

[call site] 00180


             endservent

[call site] 00181


             endprotoent

[call site] 00182


             sldns_buffer_position

[function] [call site] 00183


             endservent

[call site] 00184


             endprotoent

[call site] 00185


             sldns_buffer_position

[function] [call site] 00186


             endservent

[call site] 00187


             endprotoent

[call site] 00188


             sldns_buffer_position

[function] [call site] 00189


             endservent

[call site] 00190


             endprotoent

[call site] 00191


           sldns_str2wire_nsap_buf

[function] [call site] 00192


             strlen

[call site] 00193


             __ctype_b_loc

[call site] 00194


             __ctype_b_loc

[call site] 00195


             sldns_hexdigit_to_int

[function] [call site] 00196


             sldns_hexdigit_to_int

[function] [call site] 00197


           sldns_str2wire_atma_buf

[function] [call site] 00198


             strlen

[call site] 00199


             __ctype_b_loc

[call site] 00200


             __ctype_b_loc

[call site] 00201


             sldns_hexdigit_to_int

[function] [call site] 00202


             sldns_hexdigit_to_int

[function] [call site] 00203


           sldns_str2wire_ipseckey_buf

[function] [call site] 00204


             strlen

[call site] 00205


             sldns_buffer_init_frm_data

[function] [call site] 00206


             sldns_bget_token

[function] [call site] 00207


             sldns_buffer_position

[function] [call site] 00208


             atoi

[call site] 00209


             sldns_bget_token

[function] [call site] 00210


             sldns_buffer_position

[function] [call site] 00211


             atoi

[call site] 00212


             sldns_bget_token

[function] [call site] 00213


             sldns_buffer_position

[function] [call site] 00214


             atoi

[call site] 00215


             sldns_bget_token

[function] [call site] 00216


             sldns_buffer_position

[function] [call site] 00217


             strcmp

[call site] 00218


             sldns_buffer_position

[function] [call site] 00219


             sldns_str2wire_a_buf

[function] [call site] 00220


             sldns_buffer_position

[function] [call site] 00221


             sldns_str2wire_aaaa_buf

[function] [call site] 00222


             sldns_buffer_position

[function] [call site] 00223


             sldns_str2wire_dname_buf

[function] [call site] 00224


             sldns_buffer_position

[function] [call site] 00225


             sldns_buffer_position

[function] [call site] 00226


             sldns_buffer_position

[function] [call site] 00227


             sldns_buffer_current

[function] [call site] 00228


               sldns_buffer_at

[function] [call site] 00229


             sldns_str2wire_b64_buf

[function] [call site] 00230


             sldns_buffer_position

[function] [call site] 00231


           sldns_str2wire_nsec3_salt_buf

[function] [call site] 00232


             strlen

[call site] 00233


             __ctype_b_loc

[call site] 00234


             __ctype_b_loc

[call site] 00235


             sldns_hexdigit_to_int

[function] [call site] 00236


             sldns_hexdigit_to_int

[function] [call site] 00237


           sldns_str2wire_ilnp64_buf

[function] [call site] 00238


             __isoc99_sscanf

[call site] 00239


             strlen

[call site] 00240


             strpbrk

[call site] 00241


             htons

[call site] 00242


             htons

[call site] 00243


             htons

[call site] 00244


             htons

[call site] 00245


           sldns_str2wire_eui48_buf

[function] [call site] 00246


             __isoc99_sscanf

[call site] 00247


             strlen

[call site] 00248


           sldns_str2wire_eui64_buf

[function] [call site] 00249


             __isoc99_sscanf

[call site] 00250


             strlen

[call site] 00251


           sldns_str2wire_tag_buf

[function] [call site] 00252


             strlen

[call site] 00253


             __ctype_b_loc

[call site] 00254


           sldns_str2wire_long_str_buf

[function] [call site] 00255


             sldns_parse_char

[function] [call site] 00256


           sldns_str2wire_hip_buf

[function] [call site] 00257


             strtol

[call site] 00258


             strchr

[call site] 00259


             sldns_str2wire_hex_buf

[function] [call site] 00260


             sldns_str2wire_b64_buf

[function] [call site] 00261


             sldns_write_uint16

[function] [call site] 00262


           sldns_str2wire_int16_data_buf

[function] [call site] 00263


             strtol

[call site] 00264


             sldns_write_uint16

[function] [call site] 00265


             sldns_b64_pton

[function] [call site] 00266


             sldns_write_uint16

[function] [call site] 00267