High level conclusions

Fuzzers reach 82.42% code coverage.

Fuzzers reach 67.63% of cyclomatic complexity.

Fuzzers reach 61.08% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

292 / 478

Cyclomatic complexity statically reachable by fuzzers

4525 / 6690

Runtime code coverage of functions

394 / 478

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

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	Runtime reached by Fuzzers	Combined 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: hzfuzzer

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	4	10.0%
gold	[1:9]	2	5.0%
yellow	[10:29]	1	2.5%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	33	82.5%
All colors	40	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
2	9	Hunzip::getcode(char const*)	call site: 00009
1	6	Hunzip::getcode(char const*)	call site: 00006	fprintf
1	33	FileMgr::FileMgr(char const*, char const*)	call site: 00033	fprintf

Runtime coverage analysis

Covered functions

13

Functions that are reachable but not covered

5

Reachable functions

30

Percentage of reachable functions covered

83.33%

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
/src/hunspell/./src/tools/hzfuzzer.cxx	1
/src/hunspell/src/hunspell/hunzip.cxx	7
/src/hunspell/src/hunspell/csutil.cxx	1
/src/hunspell/src/hunspell/filemgr.cxx	4

Fuzzer: parserfuzzer

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	15	30.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	35	70.0%
All colors	50	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
12	7	TextParser::check_urls()	call site: 00007
3	36	TextParser::next_token(std::__1::basic_string , std::__1::allocator >&)	call site: 00036	strncmp

Runtime coverage analysis

Covered functions

17

Functions that are reachable but not covered

14

Reachable functions

47

Percentage of reachable functions covered

70.21%

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
/src/hunspell/./src/tools/parserfuzzer.cxx	1
/src/hunspell/src/parsers/textparser.cxx	15
/src/hunspell/src/hunspell/csutil.cxx	3
/src/hunspell/src/hunspell/./atypes.hxx	1
/src/hunspell/src/hunspell/./csutil.hxx	1
/src/hunspell/src/parsers/./../hunspell/w_char.hxx	1
/src/hunspell/src/parsers/./textparser.hxx	1

Fuzzer: persdicfuzzer

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	26	4.05%
gold	[1:9]	2	0.31%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.15%
lawngreen	50+	612	95.4%
All colors	641	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
7	356	SuggestMgr::testsug(std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&, std::__1::basic_string , std::__1::allocator > const&, int, int*, std::__1::chrono::time_point > >*, int&)	call site: 00356
2	233	HunspellImpl::checkword(std::__1::basic_string , std::__1::allocator > const&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00233
2	267	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00267
2	270	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00270
2	273	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00273
2	276	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00276
2	478	HunspellImpl::checkword(std::__1::basic_string , std::__1::allocator > const&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00478
2	536	HunspellImpl::spell_internal(std::__1::basic_string , std::__1::allocator > const&, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00536
1	31	u8_u16(std::__1::vector >&, std::__1::basic_string , std::__1::allocator > const&, bool)	call site: 00031
1	185	AffixMgr::suffix_check(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00185
1	571	HashMgr::arena_alloc(unsigned long, unsigned long) const	call site: 00571
1	599	HashMgr::add_word(std::__1::basic_string , std::__1::allocator > const&, int, unsigned short*, int, std::__1::basic_string , std::__1::allocator > const*, bool, int, bool)	call site: 00599

Runtime coverage analysis

Covered functions

267

Functions that are reachable but not covered

17

Reachable functions

358

Percentage of reachable functions covered

95.25%

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
/src/hunspell/./src/tools/persdicfuzzer.cxx	1
/src/hunspell/src/hunspell/hunspell.cxx	21
/src/hunspell/src/hunspell/affixmgr.cxx	42
/src/hunspell/src/hunspell/csutil.cxx	31
/src/hunspell/src/hunspell/./atypes.hxx	3
/src/hunspell/src/hunspell/replist.cxx	3
/src/hunspell/src/hunspell/./replist.hxx	2
/src/hunspell/src/hunspell/./csutil.hxx	5
/src/hunspell/src/hunspell/./w_char.hxx	2
/src/hunspell/src/hunspell/hashmgr.cxx	15
/src/hunspell/src/hunspell/./affentry.hxx	15
/src/hunspell/src/hunspell/affentry.cxx	8
/src/hunspell/src/hunspell/suggestmgr.cxx	27

Fuzzer: morphfuzzer

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	47	4.71%
gold	[1:9]	6	0.60%
yellow	[10:29]	11	1.10%
greenyellow	[30:49]	1	0.10%
lawngreen	50+	931	93.4%
All colors	996	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
7	356	SuggestMgr::testsug(std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&, std::__1::basic_string , std::__1::allocator > const&, int, int*, std::__1::chrono::time_point > >*, int&)	call site: 00356
5	704	AffixMgr::compound_check_morph(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string , std::__1::allocator >&, std::__1::basic_string , std::__1::allocator > const*, AffixScratch&)	call site: 00704
3	474	SuggestMgr::twowords(std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&, std::__1::basic_string , std::__1::allocator > const&, int, bool, int&)	call site: 00474	strlen
3	513	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00513
3	560	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00560
3	981	HunspellImpl::generate(std::__1::basic_string , std::__1::allocator > const&, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > > const&)	call site: 00981
2	233	HunspellImpl::checkword(std::__1::basic_string , std::__1::allocator > const&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00233
2	267	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00267
2	270	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00270
2	273	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00273
2	276	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00276
2	478	HunspellImpl::checkword(std::__1::basic_string , std::__1::allocator > const&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00478

Runtime coverage analysis

Covered functions

298

Functions that are reachable but not covered

15

Reachable functions

400

Percentage of reachable functions covered

96.25%

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
/src/hunspell/./src/tools/morphfuzzer.cxx	1
/src/hunspell/src/hunspell/hunspell.cxx	27
/src/hunspell/src/hunspell/affixmgr.cxx	52
/src/hunspell/src/hunspell/csutil.cxx	36
/src/hunspell/src/hunspell/./atypes.hxx	3
/src/hunspell/src/hunspell/replist.cxx	3
/src/hunspell/src/hunspell/./replist.hxx	2
/src/hunspell/src/hunspell/./csutil.hxx	5
/src/hunspell/src/hunspell/./w_char.hxx	2
/src/hunspell/src/hunspell/hashmgr.cxx	4
/src/hunspell/src/hunspell/./affentry.hxx	18
/src/hunspell/src/hunspell/affentry.cxx	13
/src/hunspell/src/hunspell/suggestmgr.cxx	31

Fuzzer: 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	589	43.1%
gold	[1:9]	40	2.93%
yellow	[10:29]	20	1.46%
greenyellow	[30:49]	7	0.51%
lawngreen	50+	709	51.9%
All colors	1365	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
46	584	PfxEntry::check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, char, unsigned short, AffixScratch&)	call site: 00584
42	776	AffixMgr::compound_check_morph(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string , std::__1::allocator >&, std::__1::basic_string , std::__1::allocator > const*, AffixScratch&)	call site: 00776
36	632	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00632
36	739	AffixMgr::compound_check_morph(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string , std::__1::allocator >&, std::__1::basic_string , std::__1::allocator > const*, AffixScratch&)	call site: 00739
27	909	SuggestMgr::suggest_hentry_gen(hentry*, char const*)	call site: 00909	strchr
26	91	PfxEntry::checkword(std::__1::basic_string , std::__1::allocator > const&, int, int, char, unsigned short, AffixScratch&)	call site: 00091
23	252	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00252
22	679	AffixMgr::affix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, AffixScratch&, unsigned short, char)	call site: 00679
14	142	AffixMgr::suffix_check(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00142
12	494	HunspellImpl::spell_internal(std::__1::basic_string , std::__1::allocator > const&, std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00494
12	949	SuggestMgr::suggest_hentry_gen(hentry*, char const*)	call site: 00949	strstr
12	1049	mystrsep(std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter &)	call site: 01049

Runtime coverage analysis

Covered functions

308

Functions that are reachable but not covered

63

Reachable functions

503

Percentage of reachable functions covered

87.48%

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
/src/hunspell/./src/tools/fuzzer.cxx	1
/src/hunspell/src/hunspell/hunspell.cxx	34
/src/hunspell/src/hunspell/affixmgr.cxx	55
/src/hunspell/src/hunspell/replist.cxx	3
/src/hunspell/src/hunspell/./replist.hxx	2
/src/hunspell/src/hunspell/csutil.cxx	41
/src/hunspell/src/hunspell/./atypes.hxx	3
/src/hunspell/src/hunspell/./csutil.hxx	6
/src/hunspell/src/hunspell/./w_char.hxx	2
/src/hunspell/src/hunspell/hashmgr.cxx	16
/src/hunspell/src/hunspell/./affentry.hxx	23
/src/hunspell/src/hunspell/affentry.cxx	14
/src/hunspell/src/hunspell/suggestmgr.cxx	43
/src/hunspell/src/hunspell/phonet.cxx	3

Fuzzer: affdicfuzzer

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	67	4.86%
gold	[1:9]	14	1.01%
yellow	[10:29]	33	2.39%
greenyellow	[30:49]	12	0.87%
lawngreen	50+	1250	90.8%
All colors	1376	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
10	892	HunspellImpl::spellml(std::__1::basic_string , std::__1::allocator > const&)	call site: 00892	strstr
5	788	AffixMgr::compound_check_morph(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string , std::__1::allocator >&, std::__1::basic_string , std::__1::allocator > const*, AffixScratch&)	call site: 00788
5	978	SuggestMgr::suggest_gen(std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > > const&, std::__1::basic_string , std::__1::allocator > const&, std::__1::chrono::time_point > >)	call site: 00978
4	849	HunspellImpl::analyze_internal(std::__1::basic_string , std::__1::allocator > const&)	call site: 00849
4	1014	HunspellImpl::spellml(std::__1::basic_string , std::__1::allocator > const&)	call site: 01014	strlen
3	597	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00597
3	644	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00644
3	875	HunspellImpl::analyze_internal(std::__1::basic_string , std::__1::allocator > const&)	call site: 00875
2	233	HunspellImpl::checkword(std::__1::basic_string , std::__1::allocator > const&, int*, std::__1::basic_string , std::__1::allocator >*, std::__1::chrono::time_point > >)	call site: 00233
2	267	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00267
2	270	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00270
2	273	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00273

Runtime coverage analysis

Covered functions

344

Functions that are reachable but not covered

20

Reachable functions

523

Percentage of reachable functions covered

96.18%

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
/src/hunspell/./src/tools/affdicfuzzer.cxx	1
/src/hunspell/src/hunspell/hunspell.cxx	38
/src/hunspell/src/hunspell/affixmgr.cxx	61
/src/hunspell/src/hunspell/csutil.cxx	41
/src/hunspell/src/hunspell/./atypes.hxx	3
/src/hunspell/src/hunspell/replist.cxx	3
/src/hunspell/src/hunspell/./replist.hxx	2
/src/hunspell/src/hunspell/./csutil.hxx	6
/src/hunspell/src/hunspell/./w_char.hxx	2
/src/hunspell/src/hunspell/hashmgr.cxx	16
/src/hunspell/src/hunspell/./affentry.hxx	23
/src/hunspell/src/hunspell/affentry.cxx	14
/src/hunspell/src/hunspell/suggestmgr.cxx	43
/src/hunspell/src/hunspell/phonet.cxx	3

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
AffixMgr::AffixMgr(charconst*,std::__1::vector >,std::__1::allocator >>>const&,charconst*)	/src/hunspell/src/hunspell/affixmgr.cxx	4	['N/A', 'N/A', 'N/A', 'N/A']	7	0	421	46	4	239	0	1671	1384
HashMgr::HashMgr(charconst*,charconst*,charconst*)	/src/hunspell/src/hunspell/hashmgr.cxx	4	['N/A', 'N/A', 'N/A', 'N/A']	7	0	153	19	16	150	0	641	247
Hunspell_suffix_suggest	/src/hunspell/src/hunspell/hunspell.cxx	3	['N/A', 'N/A', 'N/A']	6	0	21	3	2	63	0	250	87
SuggestMgr::SuggestMgr(std::__1::basic_string ,std::__1::allocator >const&,unsignedint,AffixMgr*)	/src/hunspell/src/hunspell/suggestmgr.cxx	4	['N/A', 'N/A', 'int', 'N/A']	3	0	314	54	50	29	0	105	57
LLVMFuzzerInitialize	/src/hunspell/./src/tools/fuzzer.cxx	2	['N/A', 'N/A']	4	0	217	35	27	30	0	92	40

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

Functions statically reachable by fuzzers

379 / 478

Cyclomatic complexity statically reachable by fuzzers

6328 / 6690

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	Runtime reached by Fuzzers	Combined 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 sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/hunspell/./src/tools/hzfuzzer.cxx

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['Hunzip::getcode(char const*)', 'Hunzip::getcode(char const*)', 'FileMgr::FileMgr(char const*, char const*)']

/src/hunspell/./src/tools/parserfuzzer.cxx

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['TextParser::check_urls()', 'TextParser::next_token(std::__1::basic_string, std::__1::allocator >&)']

/src/hunspell/./src/tools/persdicfuzzer.cxx

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['SuggestMgr::testsug(std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&, std::__1::basic_string, std::__1::allocator > const&, int, int*, std::__1::chrono::time_point > >*, int&)', 'HunspellImpl::checkword(std::__1::basic_string, std::__1::allocator > const&, int*, std::__1::basic_string, std::__1::allocator >*, std::__1::chrono::time_point > >)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'HunspellImpl::checkword(std::__1::basic_string, std::__1::allocator > const&, int*, std::__1::basic_string, std::__1::allocator >*, std::__1::chrono::time_point > >)', 'HunspellImpl::spell_internal(std::__1::basic_string, std::__1::allocator > const&, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&, int*, std::__1::basic_string, std::__1::allocator >*, std::__1::chrono::time_point > >)', 'u8_u16(std::__1::vector >&, std::__1::basic_string, std::__1::allocator > const&, bool)', 'AffixMgr::suffix_check(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)']

/src/hunspell/./src/tools/morphfuzzer.cxx

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['SuggestMgr::testsug(std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&, std::__1::basic_string, std::__1::allocator > const&, int, int*, std::__1::chrono::time_point > >*, int&)', 'AffixMgr::compound_check_morph(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string, std::__1::allocator >&, std::__1::basic_string, std::__1::allocator > const*, AffixScratch&)', 'SuggestMgr::twowords(std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&, std::__1::basic_string, std::__1::allocator > const&, int, bool, int&)', 'AffixMgr::suffix_check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)', 'AffixMgr::suffix_check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)', 'HunspellImpl::generate(std::__1::basic_string, std::__1::allocator > const&, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > > const&)', 'HunspellImpl::checkword(std::__1::basic_string, std::__1::allocator > const&, int*, std::__1::basic_string, std::__1::allocator >*, std::__1::chrono::time_point > >)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)']

/src/hunspell/./src/tools/fuzzer.cxx

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['PfxEntry::check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, char, unsigned short, AffixScratch&)', 'AffixMgr::compound_check_morph(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string, std::__1::allocator >&, std::__1::basic_string, std::__1::allocator > const*, AffixScratch&)', 'AffixMgr::suffix_check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)', 'AffixMgr::compound_check_morph(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string, std::__1::allocator >&, std::__1::basic_string, std::__1::allocator > const*, AffixScratch&)', 'SuggestMgr::suggest_hentry_gen(hentry*, char const*)', 'PfxEntry::checkword(std::__1::basic_string, std::__1::allocator > const&, int, int, char, unsigned short, AffixScratch&)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)', 'AffixMgr::affix_check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, AffixScratch&, unsigned short, char)', 'AffixMgr::suffix_check(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)', 'HunspellImpl::spell_internal(std::__1::basic_string, std::__1::allocator > const&, std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > >&, int*, std::__1::basic_string, std::__1::allocator >*, std::__1::chrono::time_point > >)']

/src/hunspell/./src/tools/affdicfuzzer.cxx

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['HunspellImpl::spellml(std::__1::basic_string, std::__1::allocator > const&)', 'AffixMgr::compound_check_morph(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, std::__1::basic_string, std::__1::allocator >&, std::__1::basic_string, std::__1::allocator > const*, AffixScratch&)', 'SuggestMgr::suggest_gen(std::__1::vector, std::__1::allocator >, std::__1::allocator, std::__1::allocator > > > const&, std::__1::basic_string, std::__1::allocator > const&, std::__1::chrono::time_point > >)', 'HunspellImpl::analyze_internal(std::__1::basic_string, std::__1::allocator > const&)', 'HunspellImpl::spellml(std::__1::basic_string, std::__1::allocator > const&)', 'AffixMgr::suffix_check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)', 'AffixMgr::suffix_check_morph(std::__1::basic_string, std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)', 'HunspellImpl::analyze_internal(std::__1::basic_string, std::__1::allocator > const&)', 'HunspellImpl::checkword(std::__1::basic_string, std::__1::allocator > const&, int*, std::__1::basic_string, std::__1::allocator >*, std::__1::chrono::time_point > >)', 'AffixMgr::compound_check(std::__1::basic_string, std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)']

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

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/hunspell/src/parsers/./textparser.hxx	['parserfuzzer']	[]
/usr/local/bin/../include/c++/v1/istream	[]	[]
/src/hunspell/src/hunspell/./baseaffix.hxx	[]	[]
/src/hunspell/./src/tools/fuzzer.cxx	['fuzzer']	[]
/usr/local/bin/../include/c++/v1/stdexcept	[]	[]
/src/hunspell/src/parsers/./../hunspell/w_char.hxx	['parserfuzzer']	[]
/src/hunspell/src/hunspell/filemgr.cxx	['hzfuzzer']	['hzfuzzer']
/src/hunspell/./src/tools/morphfuzzer.cxx	['morphfuzzer']	[]
/src/hunspell/src/hunspell/./replist.hxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	[]
/src/hunspell/src/hunspell/./atypes.hxx	['parserfuzzer', 'persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	[]
/src/hunspell/src/hunspell/hashmgr.cxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/src/hunspell/src/hunspell/suggestmgr.cxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/usr/local/bin/../include/c++/v1/sstream	[]	[]
/src/hunspell/./src/tools/parserfuzzer.cxx	['parserfuzzer']	[]
/src/hunspell/src/hunspell/affixmgr.cxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/src/hunspell/src/parsers/textparser.cxx	['parserfuzzer']	['parserfuzzer']
/src/hunspell/src/hunspell/csutil.cxx	['hzfuzzer', 'parserfuzzer', 'persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['hzfuzzer', 'parserfuzzer', 'persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/src/hunspell/src/hunspell/affentry.cxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/src/hunspell/src/hunspell/hunspell.cxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/src/hunspell/./src/tools/affdicfuzzer.cxx	['affdicfuzzer']	[]
/src/hunspell/src/hunspell/replist.cxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']
/src/hunspell/src/tools/fuzzer.cxx	[]	[]
/src/hunspell/src/hunspell/./csutil.hxx	['parserfuzzer', 'persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	[]
/src/hunspell/src/hunspell/hunzip.cxx	['hzfuzzer']	['hzfuzzer']
/src/hunspell/src/hunspell/./w_char.hxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	[]
/src/hunspell/./src/tools/hzfuzzer.cxx	['hzfuzzer']	[]
/usr/local/bin/../include/c++/v1/string	[]	[]
/src/hunspell/src/hunspell/./phonet.hxx	[]	[]
/src/hunspell/./src/tools/persdicfuzzer.cxx	['persdicfuzzer']	[]
/src/hunspell/src/hunspell/./affentry.hxx	['persdicfuzzer', 'morphfuzzer', 'fuzzer', 'affdicfuzzer']	[]
/src/hunspell/src/hunspell/phonet.cxx	['fuzzer', 'affdicfuzzer']	['fuzzer', 'affdicfuzzer']

Directories in report

Directory
/src/hunspell/src/hunspell/
/src/hunspell/src/parsers/
/src/hunspell/src/parsers/./../hunspell/
/src/hunspell/src/hunspell/./
/src/hunspell/src/parsers/./
/src/hunspell/src/tools/
/usr/local/bin/../include/c++/v1/
/src/hunspell/./src/tools/