Fuzz introspector: wget_ftpls_fuzzer
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

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
725 2055 19 :

['gnutls_crypto_single_digest_register', 'read_cpuid_vals', '_gnutls_log', 'padlock_capability', 'check_avx_movbe', 'check_padlock', '_gnutls_priority_update_non_aesni', 'check_ssse3', 'check_phe_sha512', 'check_sha', 'capabilities_to_intel_cpuid', 'gnutls_crypto_single_cipher_register', 'check_optimized_aes', 'check_phe_partial', 'gnutls_crypto_single_mac_register', 'check_phe', 'capabilities_to_zhaoxin_edx', 'check_pclmul', 'check_fast_pclmul']

725 2055 register_x86_padlock_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:388
472 472 12 :

['fseek', 'pthread_rwlock_wrlock', 'cfg_apply', 'ini_parse_file', 'gnutls_strerror', 'ini_ctx_deinit', 'construct_system_wide_priority_string', 'fclose', '_name_val_array_clear', 'fopen', '_gnutls_buffer_clear', 'update_system_wide_priority_string']

604 604 _gnutls_update_system_priorities call site: 00000 /src/gnutls/lib/priority.c:2314
48 48 1 :

['capabilities_to_intel_cpuid']

440 1304 register_x86_intel_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:911
18 18 1 :

['_gnutls_asn2err']

40 40 _gnutls_global_init call site: 00000 /src/gnutls/lib/global.c:293
16 16 1 :

['_asn1_delete_list_and_nodes']

16 16 asn1_array2tree call site: 00000 /src/gnutls/lib/minitasn1/structure.c:272
12 12 2 :

['atoi', '_gnutls_log']

22 1558 lib_init call site: 00000 /src/gnutls/lib/global.c:503
10 10 1 :

['_gnutls_log']

10 10 register_x86_intel_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:1170
10 10 1 :

['_gnutls_log']

10 10 _algo_register call site: 00000 /src/gnutls/lib/crypto-backend.c:67
10 10 1 :

['_gnutls_log']

10 10 _algo_register call site: 00000 /src/gnutls/lib/crypto-backend.c:87
6 6 3 :

['atoi', 'gnutls_global_set_log_function', 'gnutls_global_set_log_level']

166 1990 _gnutls_global_init call site: 00000 /src/gnutls/lib/global.c:249
4 4 2 :

['open', 'close']

44 44 _rnd_system_entropy_init call site: 00000 /src/gnutls/lib/nettle/sysrng-linux.c:166
4 4 2 :

['strlen', 'strchr']

16 16 get_x86_features call site: 00000 /src/nettle/fat-x86_64.c:76

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fmemopen [call site] 00001
1 dup [call site] 00002
1 _setjmp [call site] 00003
1 ftp_parse_ls_fp [function] [call site] 00004
2 ftp_parse_unix_ls [function] [call site] 00005
3 getline [call site] 00006
3 clean_line [function] [call site] 00007
3 c_strncasecmp [function] [call site] 00008
3 strtok [call site] 00011
3 debug_logprintf [function] [call site] 00012
4 log_vprintf_internal [function] [call site] 00013
5 get_log_fp [function] [call site] 00014
5 get_warc_log_fp [function] [call site] 00015
5 vfprintf [call site] 00016
5 vsnprintf [call site] 00017
5 xrealloc [function] [call site] 00018
6 realloc [call site] 00019
6 xalloc_die [function] [call site] 00020
7 dgettext [call site] 00021
7 abort [call site] 00022
5 saved_append [function] [call site] 00024
6 strchr [call site] 00025
6 strlen [call site] 00026
6 saved_append_1 [function] [call site] 00027
7 free_log_line [function] [call site] 00028
8 rpl_free [function] [call site] 00029
9 __errno_location [call site] 00030
9 __errno_location [call site] 00031
7 strlen [call site] 00040
7 strlen [call site] 00042
5 fputs [call site] 00044
5 fputs [call site] 00045
5 logflush [function] [call site] 00047
6 get_log_fp [function] [call site] 00048
6 get_warc_log_fp [function] [call site] 00049
6 rpl_fflush [function] [call site] 00050
7 __freading [call site] 00051
7 fflush [call site] 00052
7 clear_ungetc_buffer_preserving_position [function] [call site] 00053
8 rpl_fseeko [function] [call site] 00054
9 fileno [call site] 00055
9 fseeko [call site] 00056
7 fflush [call site] 00057
6 rpl_fflush [function] [call site] 00058
3 debug_logprintf [function] [call site] 00059
3 debug_logprintf [function] [call site] 00060
3 debug_logprintf [function] [call site] 00061
3 debug_logprintf [function] [call site] 00062
3 symperms [function] [call site] 00063
4 strlen [call site] 00064
3 debug_logprintf [function] [call site] 00065
3 strtok [call site] 00066
3 c_strcasecmp [function] [call site] 00067
3 __errno_location [call site] 00068
3 strtoll [call site] 00069
3 __errno_location [call site] 00070
3 number_to_static_string [function] [call site] 00071
4 number_to_string [function] [call site] 00072
3 debug_logprintf [function] [call site] 00073
3 debug_logprintf [function] [call site] 00074
3 debug_logprintf [function] [call site] 00075
3 c_isdigit [function] [call site] 00076
3 c_isdigit [function] [call site] 00077
3 c_isdigit [function] [call site] 00078
3 c_isdigit [function] [call site] 00079
3 debug_logprintf [function] [call site] 00080
3 strlen [call site] 00081
3 strstr [call site] 00082
3 debug_logprintf [function] [call site] 00084
3 strcmp [call site] 00085
3 debug_logprintf [function] [call site] 00086
3 strlen [call site] 00087
3 debug_logprintf [function] [call site] 00089
3 debug_logprintf [function] [call site] 00090
3 debug_logprintf [function] [call site] 00091
3 abort [call site] 00092
3 debug_logprintf [function] [call site] 00093
3 debug_logprintf [function] [call site] 00094
3 time [call site] 00099
3 localtime [call site] 00100
3 rpl_mktime [function] [call site] 00101
4 my_tzset [function] [call site] 00102
5 tzset [call site] 00103
4 mktime_internal [function] [call site] 00104
5 ranged_convert [function] [call site] 00111
6 convert_time [function] [call site] 00112
6 convert_time [function] [call site] 00115
6 __errno_location [call site] 00116
5 __errno_location [call site] 00119
5 isdst_differ [function] [call site] 00120
5 ranged_convert [function] [call site] 00121
5 isdst_differ [function] [call site] 00122
5 convert_time [function] [call site] 00124
5 __errno_location [call site] 00125
5 convert_time [function] [call site] 00126
5 __errno_location [call site] 00127
5 __errno_location [call site] 00128
5 convert_time [function] [call site] 00129
4 localtime_r [call site] 00130
2 fgetc [call site] 00132
2 rewind [call site] 00133
2 ftp_parse_winnt_ls [function] [call site] 00134
3 getline [call site] 00135
3 clean_line [function] [call site] 00136
3 strtok [call site] 00137
3 atoi [call site] 00138
3 strtok [call site] 00139
3 atoi [call site] 00140
3 strtok [call site] 00141
3 atoi [call site] 00142
3 debug_logprintf [function] [call site] 00145
3 strtok [call site] 00146
3 atoi [call site] 00147
3 strtok [call site] 00148
3 atoi [call site] 00149
3 debug_logprintf [function] [call site] 00150
3 rpl_mktime [function] [call site] 00151
3 strtok [call site] 00152
3 strtok [call site] 00153
3 debug_logprintf [function] [call site] 00154
3 __errno_location [call site] 00155
3 strtoll [call site] 00156
3 __errno_location [call site] 00157
3 number_to_static_string [function] [call site] 00158
3 debug_logprintf [function] [call site] 00159
2 ftp_parse_unix_ls [function] [call site] 00164
2 ftp_parse_vms_ls [function] [call site] 00165
3 getline [call site] 00166
3 clean_line [function] [call site] 00167
3 strncmp [call site] 00168
3 strtok [call site] 00169
3 debug_logprintf [function] [call site] 00170
3 strlen [call site] 00171
3 c_isdigit [function] [call site] 00172
3 eat_carets [function] [call site] 00173
3 debug_logprintf [function] [call site] 00174
3 strlen [call site] 00175
3 c_strncasecmp [function] [call site] 00176
3 debug_logprintf [function] [call site] 00177
3 c_strncasecmp [function] [call site] 00178
3 debug_logprintf [function] [call site] 00179
3 debug_logprintf [function] [call site] 00180
3 debug_logprintf [function] [call site] 00183
3 strtok [call site] 00184
3 debug_logprintf [function] [call site] 00185
3 getline [call site] 00186
3 debug_logprintf [function] [call site] 00187
3 clean_line [function] [call site] 00188
3 debug_logprintf [function] [call site] 00189
3 debug_logprintf [function] [call site] 00190
3 strtok [call site] 00191
3 debug_logprintf [function] [call site] 00192
3 debug_logprintf [function] [call site] 00193
3 strlen [call site] 00194
3 debug_logprintf [function] [call site] 00195
3 snprintf [call site] 00196
3 strlen [call site] 00197
3 debug_logprintf [function] [call site] 00198
3 strlen [call site] 00199
3 strncat [call site] 00200
3 debug_logprintf [function] [call site] 00201
3 strchr [call site] 00202
3 debug_logprintf [function] [call site] 00203
3 strchr [call site] 00204
3 strlen [call site] 00205
3 debug_logprintf [function] [call site] 00206
3 debug_logprintf [function] [call site] 00207
3 strtok [call site] 00208
3 time [call site] 00209
3 localtime [call site] 00210
3 strptime [call site] 00211
3 rpl_mktime [function] [call site] 00212
3 getenv [call site] 00213
3 atoi [call site] 00214
3 debug_logprintf [function] [call site] 00215
3 debug_logprintf [function] [call site] 00216
3 getline [call site] 00219
3 clean_line [function] [call site] 00220
2 ftp_parse_unix_ls [function] [call site] 00223
2 gettext [call site] 00224
2 logprintf [function] [call site] 00225
3 __errno_location [call site] 00226
3 check_redirect_output [function] [call site] 00227
4 tcgetpgrp [call site] 00228
4 getpgrp [call site] 00229
4 redirect_output [function] [call site] 00230
5 fprintf [call site] 00231
5 unique_create [function] [call site] 00232
6 unique_name [function] [call site] 00233
7 file_exists_p [function] [call site] 00234
8 __errno_location [call site] 00235
8 stat [call site] 00236
8 getuid [call site] 00237
8 group_member [call site] 00238
8 __errno_location [call site] 00239
8 __errno_location [call site] 00240
6 fopen_excl [function] [call site] 00242
7 open [call site] 00243
7 fdopen [call site] 00244
6 __errno_location [call site] 00245
6 unique_name [function] [call site] 00247
5 quote [function] [call site] 00250
6 quote_n [function] [call site] 00251
7 quote_n_mem [function] [call site] 00252
8 quotearg_n_options [function] [call site] 00253
9 __errno_location [call site] 00254
9 abort [call site] 00255
9 quotearg_buffer_restyled [function] [call site] 00259
10 __ctype_get_mb_cur_max [call site] 00260
10 gettext_quote [function] [call site] 00261
11 dgettext [call site] 00262
11 locale_charset [function] [call site] 00263
12 nl_langinfo [call site] 00264
11 c_strcasecmp [function] [call site] 00265
11 c_strcasecmp [function] [call site] 00266
10 gettext_quote [function] [call site] 00267
10 strlen [call site] 00268
10 abort [call site] 00269
10 strlen [call site] 00270
10 memcmp [call site] 00271
10 __ctype_b_loc [call site] 00272
10 strlen [call site] 00273
10 rpl_mbrtowc [function] [call site] 00274
11 mbrtowc [call site] 00275
11 hard_locale [function] [call site] 00276
12 setlocale_null_r [function] [call site] 00277
13 setlocale_null_unlocked [function] [call site] 00278
14 setlocale_null_androidfix [function] [call site] 00279
15 setlocale [call site] 00280
14 strlen [call site] 00281
12 strcmp [call site] 00282
10 iswprint [call site] 00283
10 mbsinit [call site] 00284
10 quotearg_buffer_restyled [function] [call site] 00285
11 quotearg_buffer_restyled [function] [call site] 00286
9 quotearg_buffer_restyled [function] [call site] 00290
9 __errno_location [call site] 00291
5 log_dump_context [function] [call site] 00292
6 get_log_fp [function] [call site] 00293
6 get_warc_log_fp [function] [call site] 00294
6 fputs [call site] 00295
6 fputs [call site] 00296
6 fputs [call site] 00297
6 fputs [call site] 00298
6 rpl_fflush [function] [call site] 00299
6 rpl_fflush [function] [call site] 00300
5 gettext [call site] 00301
5 __errno_location [call site] 00302
5 gettext [call site] 00303
5 log_dump_context [function] [call site] 00305
5 log_dump_context [function] [call site] 00306
4 redirect_output [function] [call site] 00307
3 __errno_location [call site] 00308
3 log_vprintf_internal [function] [call site] 00309
3 __errno_location [call site] 00310
3 exit_wget [function] [call site] 00311
4 longjmp [call site] 00312
2 ftp_parse_unix_ls [function] [call site] 00313
1 rewind [call site] 00318
1 ftp_parse_ls_fp [function] [call site] 00319
1 freefileinfo [function] [call site] 00320
1 rewind [call site] 00321
1 ftp_parse_ls_fp [function] [call site] 00322
1 freefileinfo [function] [call site] 00323
1 rewind [call site] 00324
1 ftp_parse_ls_fp [function] [call site] 00325
1 freefileinfo [function] [call site] 00326
1 dup2 [call site] 00327