High level conclusions

Fuzzers reach 11.79% of cyclomatic complexity.

Fuzzers reach 14.28% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

347/2429

Cyclomatic complexity statically reachable by fuzzers

2303/19531

Runtime code coverage of functions

299 / 2429

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: fuzz_1_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	235	44.6%
gold	[1:9]	4	0.76%
yellow	[10:29]	1	0.19%
greenyellow	[30:49]	6	1.14%
lawngreen	50+	280	53.2%
All colors	526	100

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
489	489	6 : View List ['priv_lookup_addr', 'htons', 'priv_lookup_name', 'remove_rr', 'sldns_read_uint16.1262', 'ntohs']	489	489	priv_rrset_bad	call site: 00327	/src/unbound/iterator/iter_priv.c:235
61	73	4 : View List ['sldns_lookup_by_id', 'dname_str', 'log_info', 'sldns_rr_descript']	61	73	log_nametypeclass	call site: 00225	/src/unbound/util/net_help.c:537
7	7	1 : View List ['dname_valid']	7	7	parse_get_cname_target	call site: 00251	/src/unbound/iterator/iter_scrub.c:209
2	124	3 : View List ['log_nametypeclass', 'dname_pkt_copy', 'ntohs']	2	127	remove_rrset	call site: 00273	/src/unbound/iterator/iter_scrub.c:66
2	2	1 : View List ['closelog']	224	224	log_init	call site: 00034	/src/unbound/util/log.c:112
2	2	1 : View List ['strlen']	132	132	log_init	call site: 00042	/src/unbound/util/log.c:142
2	2	1 : View List ['openlog']	44	44	log_init	call site: 00035	/src/unbound/util/log.c:116
0	0	None	409	1368	scrub_sanitize	call site: 00327	/src/unbound/iterator/iter_scrub.c:792
0	0	None	409	1368	scrub_sanitize	call site: 00363	/src/unbound/iterator/iter_scrub.c:819
0	0	None	136	136	log_init	call site: 00038	/src/unbound/util/log.c:136
0	0	None	47	2292	scrub_normalize	call site: 00262	/src/unbound/iterator/iter_scrub.c:440
0	0	None	47	2292	scrub_normalize	call site: 00282	/src/unbound/iterator/iter_scrub.c:485

Runtime coverage analysis

Covered functions

88

Functions that are reachable but not covered

101

Reachable functions

189

Percentage of reachable functions covered

46.56%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz_1.c	1
util/log.c	7
sldns/sbuffer.c	3
./sldns/sbuffer.h	19
util/regional.c	7
util/data/msgparse.c	26
util/data/dname.c	11
util/storage/lookup3.c	1
sldns/rrdef.c	1
util/data/msgreply.c	7
iterator/iter_scrub.c	18
util/net_help.c	4
sldns/parseutil.c	1
iterator/iter_priv.c	4
util/storage/dnstree.c	2
util/rbtree.c	1
util/fptr_wlist.c	7
compat/strlcpy.c	1
util/alloc.c	6
util/data/packed_rrset.c	3
services/cache/rrset.c	3
util/storage/slabhash.c	3
util/storage/lruhash.c	11

Fuzzer: fuzz_4_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	188	30.2%
gold	[1:9]	5	0.80%
yellow	[10:29]	1	0.16%
greenyellow	[30:49]	4	0.64%
lawngreen	50+	424	68.1%
All colors	622	100

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
489	489	6 : View List ['priv_lookup_addr', 'htons', 'priv_lookup_name', 'remove_rr', 'sldns_read_uint16.1262', 'ntohs']	489	489	priv_rrset_bad	call site: 00382	/src/unbound/iterator/iter_priv.c:235
192	192	3 : View List ['ub_event_del', 'ub_event_free', 'log_err']	192	197	comm_base_delete	call site: 00590	/src/unbound/util/netevent.c:228
166	166	6 : View List ['log_err', 'rrsetdata_equal', 'strerror', 'pthread_rwlock_unlock', 'ub_packed_rrset_parsedelete', 'need_to_update_rrset']	222	374	rrset_cache_update	call site: 00476	/src/unbound/services/cache/rrset.c:197
84	84	4 : View List ['pthread_spin_unlock', 'pthread_spin_lock', 'strerror', 'log_err']	84	84	alloc_clear	call site: 00582	/src/unbound/util/alloc.c:169
66	66	1 : View List ['table_grow']	108	108	lruhash_insert	call site: 00532	/src/unbound/util/storage/lruhash.c:349
61	73	4 : View List ['sldns_lookup_by_id', 'dname_str', 'log_info', 'sldns_rr_descript']	61	73	log_nametypeclass	call site: 00281	/src/unbound/util/net_help.c:537
56	56	1 : View List ['rrset_update_id']	56	56	rrset_cache_update	call site: 00506	/src/unbound/services/cache/rrset.c:228
48	48	1 : View List ['prealloc_blocks']	90	90	alloc_init	call site: 00080	/src/unbound/util/alloc.c:121
45	45	1 : View List ['pushintosuper']	45	45	alloc_special_release	call site: 00466	/src/unbound/util/alloc.c:289
14	14	1 : View List ['soa_find_minttl']	16	119	rdata_copy	call site: 00448	/src/unbound/util/data/msgreply.c:221
10	10	1 : View List ['regional_alloc_zero']	10	156	parse_create_rrset	call site: 00443	/src/unbound/util/data/msgreply.c:356
8	8	1 : View List ['lru_touch']	176	176	lruhash_lookup	call site: 00485	/src/unbound/util/storage/lruhash.c:373

Runtime coverage analysis

Covered functions

148

Functions that are reachable but not covered

88

Reachable functions

236

Percentage of reachable functions covered

62.71%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz_4.c	1
util/log.c	7
sldns/sbuffer.c	3
./sldns/sbuffer.h	19
util/regional.c	9
util/netevent.c	3
util/ub_event.c	6
util/mini_event.c	5
util/rbtree.c	11
util/alloc.c	10
services/cache/rrset.c	6
util/storage/slabhash.c	6
util/storage/lruhash.c	15
util/data/packed_rrset.c	5
util/data/msgparse.c	26
util/data/dname.c	11
util/storage/lookup3.c	1
sldns/rrdef.c	1
util/data/msgreply.c	7
iterator/iter_scrub.c	18
util/net_help.c	4
sldns/parseutil.c	1
iterator/iter_priv.c	4
util/storage/dnstree.c	2
util/fptr_wlist.c	7
compat/strlcpy.c	1

Fuzzer: fuzz_3_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	3	1.11%
gold	[1:9]	6	2.23%
yellow	[10:29]	13	4.85%
greenyellow	[30:49]	12	4.47%
lawngreen	50+	234	87.3%
All colors	268	100

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
0	0	None	6	56	sldns_bget_token_par	call site: 00068	/src/unbound/sldns/parse.c:298
0	0	None	6	56	sldns_bget_token_par	call site: 00068	/src/unbound/sldns/parse.c:311
0	0	None	6	56	sldns_bget_token_par	call site: 00075	/src/unbound/sldns/parse.c:384
0	0	None	4	4	sldns_b32_pton_base	call site: 00052	/src/unbound/sldns/parseutil.c:515
0	0	None	0	16	sldns_bget_token_par	call site: 00076	/src/unbound/sldns/parse.c:423
0	0	None	0	0	sldns_b32_pton_base	call site: 00052	/src/unbound/sldns/parseutil.c:540
0	0	None	0	0	sldns_b64_pton_base	call site: 00046	/src/unbound/sldns/parseutil.c:766
0	0	None	0	0	sldns_b64_pton_base	call site: 00046	/src/unbound/sldns/parseutil.c:770
0	0	None	0	0	sldns_b64_pton_base	call site: 00046	/src/unbound/sldns/parseutil.c:773
0	0	None	0	0	sldns_str2wire_str_buf	call site: 00025	/src/unbound/sldns/str2wire.c:1795
0	0	None	0	0	sldns_str2wire_b64_buf	call site: 00045	/src/unbound/sldns/str2wire.c:1907
0	0	None	0	0	sldns_str2wire_nsec_buf	call site: 00092	/src/unbound/sldns/str2wire.c:2016

Runtime coverage analysis

Covered functions

74

Functions that are reachable but not covered

21

Reachable functions

95

Percentage of reachable functions covered

77.89%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz_3.c	1
sldns/str2wire.c	37
sldns/parseutil.c	14
./sldns/sbuffer.h	13
compat/strlcpy.c	1
sldns/sbuffer.c	1
sldns/parse.c	4
sldns/rrdef.c	2

Fuzzer: parse_packet_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1	0.61%
gold	[1:9]	4	2.46%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.61%
lawngreen	50+	156	96.2%
All colors	162	100

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
0	0	None	0	440	parse_section	call site: 00046	/src/unbound/util/data/msgparse.c:878
0	0	None	0	440	parse_section	call site: 00124	/src/unbound/util/data/msgparse.c:888
0	0	None	0	77	add_rr_to_rrset	call site: 00144	/src/unbound/util/data/msgparse.c:784
0	0	None	0	47	change_rrsig_rrset	call site: 00115	/src/unbound/util/data/msgparse.c:406
0	0	None	0	0	dname_pkt_compare	call site: 00056	/src/unbound/util/data/dname.c:243
0	0	None	0	0	dname_pkt_compare	call site: 00057	/src/unbound/util/data/dname.c:246
0	0	None	0	0	dname_pkt_compare	call site: 00058	/src/unbound/util/data/dname.c:253
0	0	None	0	0	dname_pkt_compare	call site: 00059	/src/unbound/util/data/dname.c:256
0	0	None	0	0	dname_pkt_hash	call site: 00048	/src/unbound/util/data/dname.c:323
0	0	None	0	0	dname_pkt_hash	call site: 00049	/src/unbound/util/data/dname.c:326
0	0	None	0	0	parse_query_section	call site: 00020	/src/unbound/util/data/msgparse.c:585
0	0	None	0	0	smart_compare	call site: 00053	/src/unbound/util/data/msgparse.c:61

Runtime coverage analysis

Covered functions

54

Functions that are reachable but not covered

19

Reachable functions

73

Percentage of reachable functions covered

73.97%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
parse_packet_fuzzer.c	1
util/regional.c	5
sldns/sbuffer.c	1
util/data/msgparse.c	25
./sldns/sbuffer.h	17
util/data/dname.c	3
util/storage/lookup3.c	1
sldns/rrdef.c	1

Fuzzer: fuzz_2_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	27	5.48%
gold	[1:9]	2	0.40%
yellow	[10:29]	10	2.03%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	453	92.0%
All colors	492	100

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
0	26	1 : View List ['print_remainder_hex']	0	73	sldns_rr_tcttl_scan	call site: 00303	/src/unbound/sldns/wire2str.c:454
0	13	1 : View List ['print_remainder_hex']	0	13	sldns_wire2str_edns_scan	call site: 00248	/src/unbound/sldns/wire2str.c:2332
0	8	1 : View List ['sldns_str_print']	0	8	sldns_wire2str_b64_scan	call site: 00359	/src/unbound/sldns/wire2str.c:1533
0	8	1 : View List ['sldns_str_print']	0	8	sldns_wire2str_hex_scan	call site: 00105	/src/unbound/sldns/wire2str.c:1541
0	0	None	8	32	sldns_wire2str_wks_scan	call site: 00093	/src/unbound/sldns/wire2str.c:1781
0	0	None	8	24	sldns_wire2str_wks_scan	call site: 00097	/src/unbound/sldns/wire2str.c:1800
0	0	None	8	24	sldns_wire2str_wks_scan	call site: 00099	/src/unbound/sldns/wire2str.c:1805
0	0	None	0	374	sldns_wire2str_rdata_scan	call site: 00329	/src/unbound/sldns/wire2str.c:747
0	0	None	0	16	sldns_wire2str_edns_subnet_print	call site: 00011	/src/unbound/sldns/wire2str.c:2177
0	0	None	0	16	sldns_wire2str_edns_subnet_print	call site: 00018	/src/unbound/sldns/wire2str.c:2196
0	0	None	0	13	sldns_wire2str_edns_scan	call site: 00246	/src/unbound/sldns/wire2str.c:2324
0	0	None	0	8	sldns_wire2str_header_scan	call site: 00167	/src/unbound/sldns/wire2str.c:700

Runtime coverage analysis

Covered functions

96

Functions that are reachable but not covered

14

Reachable functions

110

Percentage of reachable functions covered

87.27%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz_2.c	1
sldns/wire2str.c	79
./sldns/sbuffer.h	2
sldns/parseutil.c	10
sldns/rrdef.c	4
sldns/keyraw.c	2

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity
ub_resolve_async	/src/unbound/libunbound/libunbound.c	7	['struct.ub_ctx *', 'char *', 'int ', 'int ', 'char *', 'func_type *', 'int *']	12	0	463	86	23	1404	0	9197	7065
iter_operate	/src/unbound/iterator/iterator.c	4	['struct.module_qstate.293 *', 'int ', 'int ', 'struct.outbound_entry.294 *']	13	0	230	34	14	872	0	5992	2631
config_read	/src/unbound/util/config_file.c	3	['struct.config_file *', 'char *', 'char *']	6	0	259	41	17	107	2	1427	1270
auth_zones_notify	/src/unbound/services/authzone.c	10	['struct.auth_zones *', 'struct.module_env *', 'char *', 'size_t ', 'N/A', 'struct.sockaddr_storage *', 'int ', 'int ', 'int ', 'int *']	20	0	199	33	9	1050	0	7144	1161
val_operate	/src/unbound/validator/validator.c	4	['struct.module_qstate.293 *', 'int ', 'int ', 'struct.outbound_entry.294 *']	10	0	324	43	18	584	0	3576	848
val_init	/src/unbound/validator/validator.c	2	['struct.module_env.315 *', 'int ']	10	0	86	13	5	409	0	2606	586
ub_ctx_set_option	/src/unbound/libunbound/libunbound.c	3	['struct.ub_ctx *', 'char *', 'char *']	3	0	142	28	8	55	0	772	502

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

1897/2429

Cyclomatic complexity statically reachable by fuzzers

16095 / 19531

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
priv_rrset_bad	59	3	5.084%	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
parse_section	73	40	54.79%	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']
hashlittle	120	50	41.66%	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']
rrset_cache_update	34	14	41.17%	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
alloc_special_obtain	31	17	54.83%	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
get_rrset_trust	31	11	35.48%	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
sldns_rr_tcttl_scan	31	16	51.61%	['fuzz_2_fuzzer']

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
	[]	[]
/src/unbound/iterator/iterator.c	[]	[]
/src/unbound/services/outside_network.c	[]	[]
/src/unbound/util/tcp_conn_limit.c	[]	[]
/src/unbound/util/data/msgencode.c	[]	[]
/src/unbound/util/alloc.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/fuzz_4.c	['fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/sldns/str2wire.c	['fuzz_3_fuzzer']	['fuzz_3_fuzzer']
/src/unbound/util/rbtree.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/sldns/rrdef.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer', 'parse_packet_fuzzer', 'fuzz_2_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer', 'parse_packet_fuzzer', 'fuzz_2_fuzzer']
/src/unbound/util/timehist.c	[]	[]
/src/unbound/iterator/iter_priv.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
/src/unbound/util/locks.c	[]	[]
/src/unbound/util/random.c	[]	[]
/src/unbound/validator/val_kentry.c	[]	[]
/src/unbound/compat/arc4random_uniform.c	[]	[]
/src/unbound/dns64/dns64.c	[]	[]
/src/unbound/validator/val_anchor.c	[]	[]
/src/unbound/util/module.c	[]	[]
/src/unbound/util/storage/lookup3.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']
/src/unbound/iterator/iter_hints.c	[]	[]
/src/unbound/services/authzone.c	[]	[]
/src/unbound/compat/strlcpy.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer']	['fuzz_3_fuzzer']
/src/unbound/./util/configparser.y	[]	[]
/src/unbound/validator/validator.c	[]	[]
/src/unbound/sldns/keyraw.c	['fuzz_2_fuzzer']	['fuzz_2_fuzzer']
/src/unbound/util/edns.c	[]	[]
/src/unbound/util/net_help.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
/src/unbound/services/outbound_list.c	[]	[]
/src/unbound/parse_packet_fuzzer.c	['parse_packet_fuzzer']	['parse_packet_fuzzer']
/src/unbound/./util/configlexer.lex	[]	[]
/src/unbound/iterator/iter_donotq.c	[]	[]
/src/unbound/	[]	[]
/src/unbound/validator/val_secalgo.c	[]	[]
/src/unbound/util/netevent.c	['fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/util/proxy_protocol.c	[]	[]
/src/unbound/util/storage/slabhash.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/validator/val_nsec.c	[]	[]
/src/unbound/util/regional.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']
/src/unbound/fuzz_2.c	['fuzz_2_fuzzer']	['fuzz_2_fuzzer']
/src/unbound/services/view.c	[]	[]
/src/unbound/respip/respip.c	[]	[]
/src/unbound/validator/val_utils.c	[]	[]
/src/unbound/iterator/iter_resptype.c	[]	[]
/src/unbound/validator/val_kcache.c	[]	[]
/src/unbound/validator/val_neg.c	[]	[]
/src/unbound/sldns/sbuffer.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer', 'parse_packet_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer', 'parse_packet_fuzzer']
/src/unbound/util/data/dname.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']
/src/unbound/util/fptr_wlist.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/iterator/iter_scrub.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
/src/unbound/compat/arc4random.c	[]	[]
/src/unbound/iterator/iter_utils.c	[]	[]
/src/unbound/compat/chacha_private.h	[]	[]
/src/unbound/util/config_file.c	[]	[]
/src/unbound/validator/autotrust.c	[]	[]
/src/unbound/util/data/msgreply.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
/src/unbound/util/storage/lruhash.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/sldns/parse.c	['fuzz_3_fuzzer']	['fuzz_3_fuzzer']
/src/unbound/fuzz_1.c	['fuzz_1_fuzzer']	['fuzz_1_fuzzer']
/src/unbound/util/data/packed_rrset.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/util/data/msgparse.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'parse_packet_fuzzer']
/src/unbound/fuzz_3.c	['fuzz_3_fuzzer']	['fuzz_3_fuzzer']
/src/unbound/services/rpz.c	[]	[]
/src/unbound/sldns/parseutil.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer', 'fuzz_2_fuzzer']	['fuzz_3_fuzzer', 'fuzz_2_fuzzer']
/src/unbound/compat/strlcat.c	[]	[]
/src/unbound/util/storage/dnstree.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	[]
/src/unbound/services/listen_dnsport.c	[]	[]
/src/unbound/util/log.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']
/src/unbound/services/cache/infra.c	[]	[]
/src/unbound/util/rtt.c	[]	[]
/src/unbound/services/cache/dns.c	[]	[]
/src/unbound/util/ub_event.c	['fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/libunbound/libworker.c	[]	[]
/src/unbound/services/mesh.c	[]	[]
/src/unbound/validator/val_nsec3.c	[]	[]
/src/unbound/iterator/iter_delegpt.c	[]	[]
/src/unbound/util/configparser.c	[]	[]
/src/unbound/libunbound/context.c	[]	[]
/src/unbound/validator/val_sigcrypt.c	[]	[]
/src/unbound/sldns/wire2str.c	['fuzz_2_fuzzer']	['fuzz_2_fuzzer']
/src/unbound/services/cache/rrset.c	['fuzz_1_fuzzer', 'fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/libunbound/libunbound.c	[]	[]
/src/unbound/compat/arc4_lock.c	[]	[]
/src/unbound/util/mini_event.c	['fuzz_4_fuzzer']	['fuzz_4_fuzzer']
/src/unbound/services/modstack.c	[]	[]
/src/unbound/iterator/iter_fwd.c	[]	[]
/src/unbound/./sldns/sbuffer.h	['fuzz_1_fuzzer', 'fuzz_4_fuzzer', 'fuzz_3_fuzzer', 'parse_packet_fuzzer', 'fuzz_2_fuzzer']	[]
/src/unbound/services/localzone.c	[]	[]
/src/unbound/util/tube.c	[]	[]

Directories in report

Directory
/src/unbound/services/
/src/unbound/util/storage/
/src/unbound/compat/
/src/unbound/respip/
/src/unbound/sldns/
/src/unbound/services/cache/
/src/unbound/libunbound/
/src/unbound/dns64/
/src/unbound/./sldns/
/src/unbound/iterator/
/src/unbound/
/src/unbound/./util/
/src/unbound/validator/
/src/unbound/util/
/src/unbound/util/data/

This section shows a chosen list of functions / methods calls and their relative coverage information. By static analysis of the target project code, all of these function call and their caller information, including the source file or class and line number that initiate the call are captured. Column 1 is the function name of that selected functions or methods. Column 2 of each row indicate if the target function covered by any fuzzer calltree information. Column 3 lists all fuzzers (or no fuzzers at all) that have coered that particular function call dynamically. Column 4 shows list of parent function for the specific function call, while column 5 shows possible blocker functions that make the fuzzers fail to reach the specific functions. Both column 4 and 5 will only show information if none of the fuzzers cover the target function calls.

Function in each files in report

Target sink	Callsite location	Reached by fuzzer	Function call path	Covered by fuzzer	Possible branch blockers