High level conclusions

Fuzzers reach 82.23% code coverage.

Fuzzers reach 67.74% of cyclomatic complexity.

Fuzzers reach 60.95% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

295 / 484

Cyclomatic complexity statically reachable by fuzzers

4559 / 6730

Runtime code coverage of functions

398 / 484

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]	1	2.5%
lawngreen	50+	32	80.0%
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	3.99%
gold	[1:9]	2	0.30%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.15%
lawngreen	50+	622	95.5%
All colors	651	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	358	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: 00358
2	235	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: 00235
2	269	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00269
2	272	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00272
2	275	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00275
2	278	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00278
2	480	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: 00480
2	546	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: 00546
1	31	u8_u16(std::__1::vector >&, std::__1::basic_string , std::__1::allocator > const&, bool)	call site: 00031
1	187	AffixMgr::suffix_check(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char, unsigned short)	call site: 00187
1	581	HashMgr::arena_alloc(unsigned long, unsigned long) const	call site: 00581
1	609	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: 00609

Runtime coverage analysis

Covered functions

271

Functions that are reachable but not covered

17

Reachable functions

366

Percentage of reachable functions covered

95.36%

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	22
/src/hunspell/src/hunspell/affixmgr.cxx	43
/src/hunspell/src/hunspell/csutil.cxx	33
/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: 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	595	43.3%
gold	[1:9]	44	3.20%
yellow	[10:29]	15	1.09%
greenyellow	[30:49]	6	0.43%
lawngreen	50+	712	51.8%
All colors	1372	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
58	583	PfxEntry::check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, char, unsigned short, AffixScratch&)	call site: 00583
42	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
37	750	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: 00750
36	643	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00643
27	917	SuggestMgr::suggest_hentry_gen(hentry*, char const*)	call site: 00917	strchr
26	93	PfxEntry::checkword(std::__1::basic_string , std::__1::allocator > const&, int, int, char, unsigned short, AffixScratch&)	call site: 00093
23	254	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00254
22	690	AffixMgr::affix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, AffixScratch&, unsigned short, char)	call site: 00690
14	144	AffixMgr::suffix_check(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char, unsigned short)	call site: 00144
12	506	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: 00506
12	958	SuggestMgr::suggest_hentry_gen(hentry*, char const*)	call site: 00958	strstr
12	1058	mystrsep(std::__1::basic_string , std::__1::allocator > const&, std::__1::__wrap_iter &)	call site: 01058

Runtime coverage analysis

Covered functions

311

Functions that are reachable but not covered

65

Reachable functions

509

Percentage of reachable functions covered

87.23%

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	56
/src/hunspell/src/hunspell/replist.cxx	3
/src/hunspell/src/hunspell/./replist.hxx	2
/src/hunspell/src/hunspell/csutil.cxx	43
/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: 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	37	3.68%
gold	[1:9]	0	0.0%
yellow	[10:29]	9	0.89%
greenyellow	[30:49]	9	0.89%
lawngreen	50+	950	94.5%
All colors	1005	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	357	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: 00357
5	707	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: 00707
3	515	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00515
3	562	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00562
3	990	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: 00990
2	234	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: 00234
2	268	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00268
2	271	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00271
2	274	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00274
2	277	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00277
2	479	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: 00479
2	861	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: 00861

Runtime coverage analysis

Covered functions

306

Functions that are reachable but not covered

13

Reachable functions

412

Percentage of reachable functions covered

96.84%

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	28
/src/hunspell/src/hunspell/affixmgr.cxx	53
/src/hunspell/src/hunspell/csutil.cxx	40
/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: 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	38	2.74%
gold	[1:9]	10	0.72%
yellow	[10:29]	14	1.01%
greenyellow	[30:49]	12	0.86%
lawngreen	50+	1309	94.6%
All colors	1383	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
5	800	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: 00800
4	1023	HunspellImpl::spellml(std::__1::basic_string , std::__1::allocator > const&)	call site: 01023	strlen
3	608	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00608
3	655	AffixMgr::suffix_check_morph(std::__1::basic_string , std::__1::allocator > const&, int, int, int, PfxEntry*, AffixScratch&, unsigned short, unsigned short, char)	call site: 00655
3	888	HunspellImpl::analyze_internal(std::__1::basic_string , std::__1::allocator > const&)	call site: 00888
2	235	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: 00235
2	269	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00269
2	272	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00272
2	275	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00275
2	278	AffixMgr::compound_check(std::__1::basic_string , std::__1::allocator > const&, short, short, short, short, hentry**, hentry**, char, char, int*, AffixScratch&)	call site: 00278
2	480	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: 00480
2	546	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: 00546

Runtime coverage analysis

Covered functions

350

Functions that are reachable but not covered

18

Reachable functions

529

Percentage of reachable functions covered

96.6%

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	62
/src/hunspell/src/hunspell/csutil.cxx	43
/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

382 / 484

Cyclomatic complexity statically reachable by fuzzers

6362 / 6730

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, unsigned short)']

/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::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)', '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, unsigned short)', '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/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&)', '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&)', '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/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=['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&)', '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&)', '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&)']

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

Directories in report

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