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
65	65	2 : View List ['flb_pipe_write_all', 'perror']	65	65	flb_log_print	call site: 00021	/src/fluent-bit/src/flb_log.c:647
2	8	2 : View List ['flb_hash_table_entry_free', 'time']	2	8	flb_hash_table_get	call site: 00249	/src/fluent-bit/src/flb_hash_table.c:396
2	2	1 : View List ['flb_worker_log_level']	2	2	flb_log_check	call site: 00011	/src/fluent-bit/include/fluent-bit/flb_log.h:105
2	2	1 : View List ['ERR_get_error']	2	2	flb_hash_init	call site: 00333	/src/fluent-bit/src/flb_hash.c:66
2	2	1 : View List ['ERR_get_error']	2	2	flb_hash_finalize	call site: 00342	/src/fluent-bit/src/flb_hash.c:99
2	2	1 : View List ['ERR_get_error']	2	2	flb_hash_update	call site: 00337	/src/fluent-bit/src/flb_hash.c:128
2	2	1 : View List ['EVP_sha256']	2	2	flb_crypto_get_digest_algorithm_instance_by_id	call site: 00327	/src/fluent-bit/src/flb_hash.c:25
2	2	1 : View List ['EVP_md5']	2	2	flb_crypto_get_digest_algorithm_instance_by_id	call site: 00328	/src/fluent-bit/src/flb_hash.c:28
0	130	5 : View List ['flb_sds_increase', 'flb_log_check.123', 'flb_sds_len.122', 'flb_sds_avail', 'flb_log_print']	0	130	flb_sds_printf	call site: 00194	/src/fluent-bit/src/flb_sds.c:437
0	0	None	18	34	flb_utils_proxy_url_split	call site: 00104	/src/fluent-bit/src/flb_utils.c:1029
0	0	None	16	87	flb_utils_url_split	call site: 00073	/src/fluent-bit/src/flb_utils.c:926
0	0	None	10	10	flb_utils_size_to_bytes	call site: 00129	/src/fluent-bit/src/flb_utils.c:408

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           get_null_terminated

[function] [call site] 00001


             flb_malloc

[function] [call site] 00002


               flb_fuzz_get_probability

[function] [call site] 00003


           get_null_terminated

[function] [call site] 00004


           get_null_terminated

[function] [call site] 00005


           flb_utils_write_str_buf

[function] [call site] 00006


             flb_malloc

[function] [call site] 00007


             __errno_location

[call site] 00008


             flb_errno_print

[function] [call site] 00009


               __xpg_strerror_r

[call site] 00010


               flb_log_check

[function] [call site] 00011


                 flb_worker_log_level

[function] [call site] 00012


               flb_log_print

[function] [call site] 00013


                 flb_log_construct

[function] [call site] 00014


                   isatty

[call site] 00015


                   time

[call site] 00016


                   localtime_r

[call site] 00017


                   snprintf

[call site] 00018


                   vsnprintf

[call site] 00019


                   strlen

[call site] 00020


                 flb_worker_get

[function] [call site] 00021


                 flb_pipe_write_all

[function] [call site] 00022


                   write

[call site] 00023


                   __errno_location

[call site] 00024


                   flb_time_msleep

[function] [call site] 00025


                     nanosleep

[call site] 00026


                   __errno_location

[call site] 00027


                   flb_errno_print

[function] [call site] 00028


                 fprintf

[call site] 00029


                 perror

[call site] 00030


                 fprintf

[call site] 00031


             flb_utils_write_str

[function] [call site] 00032


               snprintf

[call site] 00033


               encoded_to_buf

[function] [call site] 00034


               flb_utf8_len

[function] [call site] 00035


               flb_utf8_decode

[function] [call site] 00036


               flb_log_check

[function] [call site] 00037


               flb_log_print

[function] [call site] 00038


               snprintf

[call site] 00039


               encoded_to_buf

[function] [call site] 00040


               flb_utf8_len

[function] [call site] 00041


               flb_log_check

[function] [call site] 00042


               flb_log_print

[function] [call site] 00043


               flb_log_check

[function] [call site] 00044


               flb_log_print

[function] [call site] 00045


               encoded_to_buf

[function] [call site] 00046


             flb_realloc

[function] [call site] 00047


               realloc

[call site] 00048


             __errno_location

[call site] 00049


             flb_errno_print

[function] [call site] 00050


             flb_free

[function] [call site] 00051


           flb_free

[function] [call site] 00052


           flb_utils_split

[function] [call site] 00053


             flb_malloc

[function] [call site] 00054


             __errno_location

[call site] 00055


             flb_errno_print

[function] [call site] 00056


             strlen

[call site] 00057


             flb_malloc

[function] [call site] 00058


             __errno_location

[call site] 00059


             flb_errno_print

[function] [call site] 00060


             flb_free

[function] [call site] 00061


             flb_utils_split_free

[function] [call site] 00062


               flb_utils_split_free_entry

[function] [call site] 00063


                 flb_free

[function] [call site] 00064


                 flb_free

[function] [call site] 00065


               flb_free

[function] [call site] 00066


             flb_malloc

[function] [call site] 00067


             __errno_location

[call site] 00068


             flb_errno_print

[function] [call site] 00069


             flb_utils_split_free

[function] [call site] 00070


           flb_utils_split_free

[function] [call site] 00071


           flb_utils_url_split

[function] [call site] 00072


             strstr

[call site] 00073


             __errno_location

[call site] 00074


             flb_errno_print

[function] [call site] 00075


             strchr

[call site] 00076


             strchr

[call site] 00077


             flb_copy_host

[function] [call site] 00078


             __errno_location

[call site] 00079


             flb_errno_print

[function] [call site] 00080


             strchr

[call site] 00081


             flb_strdup

[function] [call site] 00082


               strlen

[call site] 00083


               flb_strndup

[function] [call site] 00084


                 flb_malloc

[function] [call site] 00085


             flb_strdup

[function] [call site] 00086


             flb_strdup

[function] [call site] 00087


             strchr

[call site] 00088


             flb_copy_host

[function] [call site] 00089


             flb_strdup

[function] [call site] 00090


             strlen

[call site] 00091


             flb_copy_host

[function] [call site] 00092


             flb_strdup

[function] [call site] 00093


             strcmp

[call site] 00094


             flb_strdup

[function] [call site] 00095


             strcmp

[call site] 00096


             flb_strdup

[function] [call site] 00097


             flb_free

[function] [call site] 00098


           flb_free

[function] [call site] 00099


           flb_free

[function] [call site] 00100


           flb_free

[function] [call site] 00101


           flb_free

[function] [call site] 00102


           flb_utils_proxy_url_split

[function] [call site] 00103


             strstr

[call site] 00104


             __errno_location

[call site] 00105


             flb_errno_print

[function] [call site] 00106


             strcmp

[call site] 00107


             flb_free

[function] [call site] 00108


             strrchr

[call site] 00109


             strchr

[call site] 00110


             flb_free

[function] [call site] 00111


             strchr

[call site] 00112


             flb_copy_host

[function] [call site] 00113


             strdup

[call site] 00114


             strlen

[call site] 00115


             flb_copy_host

[function] [call site] 00116


             flb_strdup

[function] [call site] 00117


             strchr

[call site] 00118


             flb_copy_host

[function] [call site] 00119


             strdup

[call site] 00120


             strlen

[call site] 00121


             flb_copy_host

[function] [call site] 00122


             flb_strdup

[function] [call site] 00123


           flb_free

[function] [call site] 00124


           flb_free

[function] [call site] 00125


           flb_free

[function] [call site] 00126


           flb_free

[function] [call site] 00127


           flb_free

[function] [call site] 00128


           flb_utils_size_to_bytes

[function] [call site] 00129


             strcasecmp

[call site] 00130


             strlen

[call site] 00131


             atoll

[call site] 00132


             __ctype_b_loc

[call site] 00133


             toupper

[call site] 00134


           flb_utils_time_split

[function] [call site] 00135


             __errno_location

[call site] 00136


             strtol

[call site] 00137


             __errno_location

[call site] 00138


             __errno_location

[call site] 00139


             __errno_location

[call site] 00140


             flb_errno_print

[function] [call site] 00141


             strchr

[call site] 00142


             strtol

[call site] 00143


             __errno_location

[call site] 00144


             __errno_location

[call site] 00145


             __errno_location

[call site] 00146


             flb_errno_print

[function] [call site] 00147


           flb_utils_time_to_seconds

[function] [call site] 00148


             strlen

[call site] 00149


             atoi

[call site] 00150


           flb_utils_bool

[function] [call site] 00151


             strcasecmp

[call site] 00152


             strcasecmp

[call site] 00153


             strcasecmp

[call site] 00154


             strcasecmp

[call site] 00155


             strcasecmp

[call site] 00156


           flb_utils_hex2int

[function] [call site] 00157


           flb_uri_create

[function] [call site] 00158


             flb_calloc

[function] [call site] 00159


               flb_fuzz_get_probability

[function] [call site] 00160


               calloc

[call site] 00161


             perror

[call site] 00162


             strlen

[call site] 00163


             flb_strdup

[function] [call site] 00164


             flb_strdup

[function] [call site] 00165


           flb_uri_get

[function] [call site] 00166


           flb_uri_dump

[function] [call site] 00167


             printf

[call site] 00168


           flb_uri_destroy

[function] [call site] 00169


             flb_free

[function] [call site] 00170


             flb_free

[function] [call site] 00171


             flb_free

[function] [call site] 00172


           flb_uri_encode

[function] [call site] 00173


             flb_sds_create_size

[function] [call site] 00174


               sds_alloc

[function] [call site] 00175


                 flb_malloc

[function] [call site] 00176


                 __errno_location

[call site] 00177


                 flb_errno_print

[function] [call site] 00178


             flb_log_check

[function] [call site] 00179


             flb_log_print

[function] [call site] 00180


             flb_uri_to_encode

[function] [call site] 00181


             flb_sds_printf

[function] [call site] 00182


               strlen

[call site] 00183


               flb_sds_avail

[function] [call site] 00184


               flb_sds_increase

[function] [call site] 00185


                 flb_sds_alloc

[function] [call site] 00186


                 flb_realloc

[function] [call site] 00187


                 __errno_location

[call site] 00188


                 flb_errno_print

[function] [call site] 00189


               flb_sds_len

[function] [call site] 00190


               vsnprintf

[call site] 00191


               flb_log_check

[function] [call site] 00192


               flb_log_print

[function] [call site] 00193


               flb_sds_avail

[function] [call site] 00194


               flb_sds_increase

[function] [call site] 00195


               flb_sds_len

[function] [call site] 00196


               vsnprintf

[call site] 00197


               flb_sds_avail

[function] [call site] 00198


               flb_log_check

[function] [call site] 00199


               flb_log_print

[function] [call site] 00200


             flb_log_check

[function] [call site] 00201


             flb_log_print

[function] [call site] 00202


             flb_sds_destroy

[function] [call site] 00203


               flb_free

[function] [call site] 00204


             flb_sds_cat

[function] [call site] 00205


               flb_sds_avail

[function] [call site] 00206


               flb_sds_increase

[function] [call site] 00207


               flb_sds_len

[function] [call site] 00208


             flb_log_check

[function] [call site] 00209


             flb_log_print

[function] [call site] 00210


             flb_sds_destroy

[function] [call site] 00211


           flb_sds_destroy

[function] [call site] 00212


           flb_hash_table_create

[function] [call site] 00213


             flb_malloc

[function] [call site] 00214


             __errno_location

[call site] 00215


             flb_errno_print

[function] [call site] 00216


             flb_calloc

[function] [call site] 00217


             __errno_location

[call site] 00218


             flb_errno_print

[function] [call site] 00219


             flb_free

[function] [call site] 00220


           flb_hash_table_add

[function] [call site] 00221


             flb_hash_table_evict_older

[function] [call site] 00222


               flb_hash_table_entry_free

[function] [call site] 00223


                 flb_free

[function] [call site] 00224


                 flb_free

[function] [call site] 00225


                 flb_free

[function] [call site] 00226


             flb_hash_table_evict_less_used

[function] [call site] 00227


               flb_hash_table_entry_free

[function] [call site] 00228


             flb_hash_table_evict_random

[function] [call site] 00229


               random

[call site] 00230


               flb_hash_table_entry_free

[function] [call site] 00231


             hash_get_entry

[function] [call site] 00232


               strncmp

[call site] 00233


               strncmp

[call site] 00234


             entry_set_value

[function] [call site] 00235


               flb_free

[function] [call site] 00236


               flb_malloc

[function] [call site] 00237


               __errno_location

[call site] 00238


               flb_errno_print

[function] [call site] 00239


               time

[call site] 00240


             flb_calloc

[function] [call site] 00241


             __errno_location

[call site] 00242


             flb_errno_print

[function] [call site] 00243


             time

[call site] 00244


             flb_strndup

[function] [call site] 00245


             entry_set_value

[function] [call site] 00246


             flb_free

[function] [call site] 00247


           flb_hash_table_get

[function] [call site] 00248


             hash_get_entry

[function] [call site] 00249


             time

[call site] 00250


             flb_hash_table_entry_free

[function] [call site] 00251


           flb_hash_table_add

[function] [call site] 00252


           flb_hash_table_get_by_id

[function] [call site] 00253


             strcmp

[call site] 00254


           flb_hash_table_del

[function] [call site] 00255


             strlen

[call site] 00256


             strcmp

[call site] 00257


             strcmp

[call site] 00258


             flb_hash_table_entry_free

[function] [call site] 00259


           flb_hash_table_exists

[function] [call site] 00260


           strlen

[call site] 00261


           flb_hash_table_del_ptr

[function] [call site] 00262


             strncmp

[call site] 00263


             flb_hash_table_entry_free

[function] [call site] 00264


           flb_hash_table_destroy

[function] [call site] 00265


             flb_hash_table_entry_free

[function] [call site] 00266


             flb_free

[function] [call site] 00267


             flb_free

[function] [call site] 00268


           flb_free

[function] [call site] 00269


           flb_sds_create_len

[function] [call site] 00270


             sds_alloc

[function] [call site] 00271


           flb_sds_cat_esc

[function] [call site] 00272


             flb_sds_avail

[function] [call site] 00273


             flb_sds_increase

[function] [call site] 00274


             flb_sds_avail

[function] [call site] 00275


             flb_sds_increase

[function] [call site] 00276


           flb_sds_destroy

[function] [call site] 00277


           flb_gzip_compress

[function] [call site] 00278


             flb_malloc

[function] [call site] 00279


             __errno_location

[call site] 00280


             flb_errno_print

[function] [call site] 00281


             flb_log_check

[function] [call site] 00282


             flb_log_print

[function] [call site] 00283


             gzip_header

[function] [call site] 00284


             flb_free

[function] [call site] 00285


           flb_gzip_uncompress

[function] [call site] 00286


             flb_log_check

[function] [call site] 00287


             flb_log_print

[function] [call site] 00288


             flb_log_check

[function] [call site] 00289


             flb_log_print

[function] [call site] 00290


             flb_log_check

[function] [call site] 00291


             flb_log_print

[function] [call site] 00292


             flb_log_check

[function] [call site] 00293


             flb_log_print

[function] [call site] 00294


             read_le16

[function] [call site] 00295


             flb_log_check

[function] [call site] 00296


             flb_log_print

[function] [call site] 00297


             flb_log_check

[function] [call site] 00298


             flb_log_print

[function] [call site] 00299


             flb_log_check

[function] [call site] 00300


             flb_log_print

[function] [call site] 00301


             flb_log_check

[function] [call site] 00302


             flb_log_print

[function] [call site] 00303


             read_le16

[function] [call site] 00304


             flb_log_check

[function] [call site] 00305


             flb_log_print

[function] [call site] 00306


             read_le32

[function] [call site] 00307


             flb_log_check

[function] [call site] 00308


             flb_log_print

[function] [call site] 00309


             read_le32

[function] [call site] 00310


             flb_log_check

[function] [call site] 00311


             flb_log_print

[function] [call site] 00312


             flb_malloc

[function] [call site] 00313


             __errno_location

[call site] 00314


             flb_errno_print

[function] [call site] 00315


             flb_free

[function] [call site] 00316


             flb_free

[function] [call site] 00317


             flb_free

[function] [call site] 00318


             flb_log_check

[function] [call site] 00319


             flb_log_print

[function] [call site] 00320


             flb_free

[function] [call site] 00321


             flb_log_check

[function] [call site] 00322


             flb_log_print

[function] [call site] 00323


           flb_gzip_uncompress

[function] [call site] 00324


           flb_free

[function] [call site] 00325


           flb_hash_init

[function] [call site] 00326


             flb_crypto_get_digest_algorithm_instance_by_id

[function] [call site] 00327


               EVP_sha256

[call site] 00328


               EVP_sha512

[call site] 00329


               EVP_md5

[call site] 00330


             EVP_MD_CTX_new

[call site] 00331


             ERR_get_error

[call site] 00332


             EVP_DigestInit_ex

[call site] 00333


             ERR_get_error

[call site] 00334


             EVP_MD_CTX_md

[call site] 00335


           flb_hash_update

[function] [call site] 00336


             EVP_DigestUpdate

[call site] 00337


             ERR_get_error

[call site] 00338


           flb_hash_update

[function] [call site] 00339


           flb_hash_update

[function] [call site] 00340


           flb_hash_finalize

[function] [call site] 00341


             EVP_DigestFinal_ex

[call site] 00342


             ERR_get_error

[call site] 00343


           flb_hash_cleanup

[function] [call site] 00344


             EVP_MD_CTX_free

[call site] 00345


           flb_regex_init

[function] [call site] 00346


           flb_regex_create

[function] [call site] 00347


             flb_malloc

[function] [call site] 00348


             __errno_location

[call site] 00349


             flb_errno_print

[function] [call site] 00350


             str_to_regex

[function] [call site] 00351


               strlen

[call site] 00352


               check_option

[function] [call site] 00353


                 flb_log_check

[function] [call site] 00354


                 flb_log_print

[function] [call site] 00355


             flb_free

[function] [call site] 00356


           flb_regex_match

[function] [call site] 00357


           flb_regex_destroy

[function] [call site] 00358


             flb_free

[function] [call site] 00359


           flb_regex_exit

[function] [call site] 00360


           flb_slist_create

[function] [call site] 00361


           flb_sds_create_len

[function] [call site] 00362


           flb_slist_add_sds

[function] [call site] 00363


             flb_malloc

[function] [call site] 00364


             __errno_location

[call site] 00365


           flb_slist_entry_get

[function] [call site] 00366


           flb_slist_dump

[function] [call site] 00367


             printf

[call site] 00368


             printf

[call site] 00369


           flb_slist_destroy

[function] [call site] 00370


             flb_sds_destroy

[function] [call site] 00371


             flb_free

[function] [call site] 00372


           flb_free

[function] [call site] 00373


           flb_free

[function] [call site] 00374


           flb_free

[function] [call site] 00375


           flb_free

[function] [call site] 00376