High level conclusions

Fuzzers reach 63.50% code coverage.

Fuzzers reach 58.75% of cyclomatic complexity.

Fuzzers reach 49.26% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

1716 / 3483

Cyclomatic complexity statically reachable by fuzzers

21081 / 35877

Runtime code coverage of functions

2212 / 3483

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: ascii85_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	7	14.2%
gold	[1:9]	5	10.2%
yellow	[10:29]	12	24.4%
greenyellow	[30:49]	2	4.08%
lawngreen	50+	23	46.9%
All colors	49	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	8	Pl_ASCII85Decoder::Pl_ASCII85Decoder(char const*, Pipeline*)	call site: 00008	__cxa_allocate_exception
1	41	FuzzHelper::doChecks()	call site: 00041
1	47	FuzzHelper::run()	call site: 00047	__cxa_begin_catch

Runtime coverage analysis

Covered functions

18

Functions that are reachable but not covered

16

Reachable functions

47

Percentage of reachable functions covered

65.96%

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/qpdf/fuzz/ascii85_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc	4
/src/qpdf/libqpdf/qpdf/Util.hh	2
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCII85Decoder.hh	1

Fuzzer: future_lzw_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	20	27.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	6.75%
greenyellow	[30:49]	7	9.45%
lawngreen	50+	42	56.7%
All colors	74	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
8	20	unsigned int QIntC::to_uint (unsigned long const&)	call site: 00020	__cxa_allocate_exception
5	8	Pl_LZWDecoder::Pl_LZWDecoder(char const*, Pipeline*, bool)	call site: 00008	__cxa_allocate_exception
5	35	Pl_LZWDecoder::getFirstChar(unsigned int)	call site: 00035	__cxa_allocate_exception
1	41	Pl_LZWDecoder::getFirstChar(unsigned int)	call site: 00041
1	72	FuzzHelper::run()	call site: 00072	__cxa_begin_catch

Runtime coverage analysis

Covered functions

34

Functions that are reachable but not covered

25

Reachable functions

82

Percentage of reachable functions covered

69.51%

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/qpdf/fuzz/lzw_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_LZWDecoder.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	3
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	1
/src/qpdf/libqpdf/Buffer.cc	4
/src/qpdf/libqpdf/qpdf/Pl_LZWDecoder.hh	1

Fuzzer: tiffpredictor_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	42	50.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	41	49.3%
All colors	83	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
13	32	unsigned int QIntC::to_uint (unsigned long const&)	call site: 00032	__cxa_allocate_exception
10	47	BitStream::getBitsSigned(unsigned long)	call site: 00047	__cxa_allocate_exception
5	8	Pl_TIFFPredictor::Pl_TIFFPredictor(char const*, Pipeline*, Pl_TIFFPredictor::action_e, unsigned int, unsigned int, unsigned int)	call site: 00008	__cxa_allocate_exception
5	14	Pl_TIFFPredictor::Pl_TIFFPredictor(char const*, Pipeline*, Pl_TIFFPredictor::action_e, unsigned int, unsigned int, unsigned int)	call site: 00014	__cxa_allocate_exception
5	60	BitWriter::writeBits(unsigned long long, unsigned long)	call site: 00060	__cxa_allocate_exception
3	79	FuzzHelper::run()	call site: 00079	__cxa_end_catch
1	66	Pl_TIFFPredictor::processRow()	call site: 00066

Runtime coverage analysis

Covered functions

33

Functions that are reachable but not covered

30

Reachable functions

91

Percentage of reachable functions covered

67.03%

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/qpdf/fuzz/tiffpredictor_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	4
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/BitStream.cc	3
/src/qpdf/include/qpdf/QIntC.hh	3
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/libqpdf/qpdf/bits_functions.hh	2
/src/qpdf/libqpdf/qpdf/Pl_TIFFPredictor.hh	1

Fuzzer: future_tiffpredictor_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	42	50.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	41	49.3%
All colors	83	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
13	32	unsigned int QIntC::to_uint (unsigned long const&)	call site: 00032	__cxa_allocate_exception
10	47	BitStream::getBitsSigned(unsigned long)	call site: 00047	__cxa_allocate_exception
5	8	Pl_TIFFPredictor::Pl_TIFFPredictor(char const*, Pipeline*, Pl_TIFFPredictor::action_e, unsigned int, unsigned int, unsigned int)	call site: 00008	__cxa_allocate_exception
5	14	Pl_TIFFPredictor::Pl_TIFFPredictor(char const*, Pipeline*, Pl_TIFFPredictor::action_e, unsigned int, unsigned int, unsigned int)	call site: 00014	__cxa_allocate_exception
5	60	BitWriter::writeBits(unsigned long long, unsigned long)	call site: 00060	__cxa_allocate_exception
3	79	FuzzHelper::run()	call site: 00079	__cxa_end_catch
1	66	Pl_TIFFPredictor::processRow()	call site: 00066

Runtime coverage analysis

Covered functions

33

Functions that are reachable but not covered

30

Reachable functions

91

Percentage of reachable functions covered

67.03%

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/qpdf/fuzz/tiffpredictor_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	4
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/BitStream.cc	3
/src/qpdf/include/qpdf/QIntC.hh	3
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/libqpdf/qpdf/bits_functions.hh	2
/src/qpdf/libqpdf/qpdf/Pl_TIFFPredictor.hh	1

Fuzzer: lzw_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	20	27.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	6.75%
greenyellow	[30:49]	7	9.45%
lawngreen	50+	42	56.7%
All colors	74	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
8	20	unsigned int QIntC::to_uint (unsigned long const&)	call site: 00020	__cxa_allocate_exception
5	8	Pl_LZWDecoder::Pl_LZWDecoder(char const*, Pipeline*, bool)	call site: 00008	__cxa_allocate_exception
5	35	Pl_LZWDecoder::getFirstChar(unsigned int)	call site: 00035	__cxa_allocate_exception
1	41	Pl_LZWDecoder::getFirstChar(unsigned int)	call site: 00041
1	72	FuzzHelper::run()	call site: 00072	__cxa_begin_catch

Runtime coverage analysis

Covered functions

34

Functions that are reachable but not covered

25

Reachable functions

82

Percentage of reachable functions covered

69.51%

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/qpdf/fuzz/lzw_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_LZWDecoder.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	3
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	1
/src/qpdf/libqpdf/Buffer.cc	4
/src/qpdf/libqpdf/qpdf/Pl_LZWDecoder.hh	1

Fuzzer: future_runlength_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	20	35.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	8.92%
greenyellow	[30:49]	5	8.92%
lawngreen	50+	26	46.4%
All colors	56	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	16	FuzzHelper::doChecks()	call site: 00016
5	9	Pl_RunLength::Pl_RunLength(char const*, Pipeline*, Pl_RunLength::action_e)	call site: 00009	__cxa_allocate_exception
2	36	FuzzHelper::doChecks()	call site: 00036
1	54	FuzzHelper::run()	call site: 00054	__cxa_begin_catch

Runtime coverage analysis

Covered functions

23

Functions that are reachable but not covered

24

Reachable functions

61

Percentage of reachable functions covered

60.66%

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/qpdf/fuzz/runlength_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_RunLength.cc	8
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	3
/src/qpdf/libqpdf/qpdf/Util.hh	4
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1

Fuzzer: future_flate_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	141	62.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	86	37.8%
All colors	227	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
26	158	deflate	call site: 00158	inflate
15	87	deflate	call site: 00087	crc32
13	45	deflateResetKeep	call site: 00045	crc32_z
11	144	deflate	call site: 00144	_tr_flush_block
8	9	unsigned long QIntC::to_size (unsigned int const&)	call site: 00009	__cxa_allocate_exception
8	64	deflateReset	call site: 00064	inflateInit_
7	209	Pl_Flate::finish()	call site: 00209	__cxa_begin_catch
6	186	unsigned long QIntC::to_ulong (unsigned long const&)	call site: 00186	__cxa_allocate_exception
6	196	FuzzHelper::doChecks()	call site: 00196	__cxa_allocate_exception
5	18	Pl_Flate::Pl_Flate(char const*, Pipeline*, Pl_Flate::action_e, unsigned int)	call site: 00018	__cxa_allocate_exception
5	29	Pl_Flate::handleData(unsigned char const*, unsigned long, int)	call site: 00029	__cxa_allocate_exception
5	138	_tr_flush_block	call site: 00138	_tr_flush_block

Runtime coverage analysis

Covered functions

70

Functions that are reachable but not covered

57

Reachable functions

138

Percentage of reachable functions covered

58.7%

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/qpdf/fuzz/flate_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	8
/src/qpdf/include/qpdf/QIntC.hh	9
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	1
/src/qpdf/libqpdf/qpdf/Util.hh	3
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1

Fuzzer: flate_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	141	62.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	86	37.8%
All colors	227	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
26	158	deflate	call site: 00158	inflate
15	87	deflate	call site: 00087	crc32
13	45	deflateResetKeep	call site: 00045	crc32_z
11	144	deflate	call site: 00144	_tr_flush_block
8	9	unsigned long QIntC::to_size (unsigned int const&)	call site: 00009	__cxa_allocate_exception
8	64	deflateReset	call site: 00064	inflateInit_
7	209	Pl_Flate::finish()	call site: 00209	__cxa_begin_catch
6	186	unsigned long QIntC::to_ulong (unsigned long const&)	call site: 00186	__cxa_allocate_exception
6	196	FuzzHelper::doChecks()	call site: 00196	__cxa_allocate_exception
5	18	Pl_Flate::Pl_Flate(char const*, Pipeline*, Pl_Flate::action_e, unsigned int)	call site: 00018	__cxa_allocate_exception
5	29	Pl_Flate::handleData(unsigned char const*, unsigned long, int)	call site: 00029	__cxa_allocate_exception
5	138	_tr_flush_block	call site: 00138	_tr_flush_block

Runtime coverage analysis

Covered functions

70

Functions that are reachable but not covered

57

Reachable functions

138

Percentage of reachable functions covered

58.7%

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/qpdf/fuzz/flate_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	8
/src/qpdf/include/qpdf/QIntC.hh	9
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	1
/src/qpdf/libqpdf/qpdf/Util.hh	3
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1

Fuzzer: pngpredictor_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	17	29.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	40	70.1%
All colors	57	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	8	Pl_PNGFilter::Pl_PNGFilter(char const*, Pipeline*, Pl_PNGFilter::action_e, unsigned int, unsigned int, unsigned int)	call site: 00008	__cxa_allocate_exception
5	14	Pl_PNGFilter::Pl_PNGFilter(char const*, Pipeline*, Pl_PNGFilter::action_e, unsigned int, unsigned int, unsigned int)	call site: 00014	__cxa_allocate_exception
4	27	Pl_PNGFilter::write(unsigned char const*, unsigned long)	call site: 00027
3	53	FuzzHelper::run()	call site: 00053	__cxa_end_catch

Runtime coverage analysis

Covered functions

30

Functions that are reachable but not covered

16

Reachable functions

71

Percentage of reachable functions covered

77.46%

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/qpdf/fuzz/pngpredictor_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_PNGFilter.cc	12
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1

Fuzzer: future_hex_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	7	18.4%
gold	[1:9]	1	2.63%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	6	15.7%
lawngreen	50+	24	63.1%
All colors	38	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	8	Pl_ASCIIHexDecoder::Pl_ASCIIHexDecoder(char const*, Pipeline*)	call site: 00008	__cxa_allocate_exception
1	30	FuzzHelper::doChecks()	call site: 00030
1	36	FuzzHelper::run()	call site: 00036	__cxa_begin_catch

Runtime coverage analysis

Covered functions

17

Functions that are reachable but not covered

15

Reachable functions

44

Percentage of reachable functions covered

65.91%

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/qpdf/fuzz/hex_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_ASCIIHexDecoder.cc	4
/src/qpdf/libqpdf/qpdf/Util.hh	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCIIHexDecoder.hh	1

Fuzzer: future_ascii85_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	7	14.2%
gold	[1:9]	5	10.2%
yellow	[10:29]	12	24.4%
greenyellow	[30:49]	2	4.08%
lawngreen	50+	23	46.9%
All colors	49	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	8	Pl_ASCII85Decoder::Pl_ASCII85Decoder(char const*, Pipeline*)	call site: 00008	__cxa_allocate_exception
1	41	FuzzHelper::doChecks()	call site: 00041
1	47	FuzzHelper::run()	call site: 00047	__cxa_begin_catch

Runtime coverage analysis

Covered functions

18

Functions that are reachable but not covered

16

Reachable functions

47

Percentage of reachable functions covered

65.96%

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/qpdf/fuzz/ascii85_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc	4
/src/qpdf/libqpdf/qpdf/Util.hh	2
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCII85Decoder.hh	1

Fuzzer: runlength_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	20	35.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	8.92%
greenyellow	[30:49]	5	8.92%
lawngreen	50+	26	46.4%
All colors	56	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	16	FuzzHelper::doChecks()	call site: 00016
5	9	Pl_RunLength::Pl_RunLength(char const*, Pipeline*, Pl_RunLength::action_e)	call site: 00009	__cxa_allocate_exception
2	36	FuzzHelper::doChecks()	call site: 00036
1	54	FuzzHelper::run()	call site: 00054	__cxa_begin_catch

Runtime coverage analysis

Covered functions

23

Functions that are reachable but not covered

24

Reachable functions

61

Percentage of reachable functions covered

60.66%

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/qpdf/fuzz/runlength_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_RunLength.cc	8
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	3
/src/qpdf/libqpdf/qpdf/Util.hh	4
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1

Fuzzer: future_pngpredictor_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	17	29.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	40	70.1%
All colors	57	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	8	Pl_PNGFilter::Pl_PNGFilter(char const*, Pipeline*, Pl_PNGFilter::action_e, unsigned int, unsigned int, unsigned int)	call site: 00008	__cxa_allocate_exception
5	14	Pl_PNGFilter::Pl_PNGFilter(char const*, Pipeline*, Pl_PNGFilter::action_e, unsigned int, unsigned int, unsigned int)	call site: 00014	__cxa_allocate_exception
4	27	Pl_PNGFilter::write(unsigned char const*, unsigned long)	call site: 00027
3	53	FuzzHelper::run()	call site: 00053	__cxa_end_catch

Runtime coverage analysis

Covered functions

30

Functions that are reachable but not covered

16

Reachable functions

71

Percentage of reachable functions covered

77.46%

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/qpdf/fuzz/pngpredictor_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_PNGFilter.cc	12
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1

Fuzzer: hex_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	7	18.4%
gold	[1:9]	1	2.63%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	6	15.7%
lawngreen	50+	24	63.1%
All colors	38	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	8	Pl_ASCIIHexDecoder::Pl_ASCIIHexDecoder(char const*, Pipeline*)	call site: 00008	__cxa_allocate_exception
1	30	FuzzHelper::doChecks()	call site: 00030
1	36	FuzzHelper::run()	call site: 00036	__cxa_begin_catch

Runtime coverage analysis

Covered functions

17

Functions that are reachable but not covered

15

Reachable functions

44

Percentage of reachable functions covered

65.91%

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/qpdf/fuzz/hex_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/Pl_ASCIIHexDecoder.cc	4
/src/qpdf/libqpdf/qpdf/Util.hh	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCIIHexDecoder.hh	1

Fuzzer: dct_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	182	55.3%
gold	[1:9]	18	5.47%
yellow	[10:29]	6	1.82%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	123	37.3%
All colors	329	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
56	99	init_simd	call site: 00099	jinit_forward_dct
32	50	std_huff_tables	call site: 00050	jpeg_start_compress
30	156	unsigned int QIntC::to_uint (int const&)	call site: 00156	jpeg_finish_compress
19	233	master_selection	call site: 00233	jinit_1pass_quantizer
11	34	jinit_memory_mgr	call site: 00034	jpeg_set_defaults
9	209	jpeg_core_output_dimensions	call site: 00209	jdiv_round_up
7	201	jpeg_calc_output_dimensions	call site: 00201	jdiv_round_up
5	12	Pl_DCT::Pl_DCT(char const*, Pipeline*)	call site: 00012	__cxa_allocate_exception
3	25	Pl_DCT::finish()	call site: 00025	jpeg_CreateCompress
3	257	jinit_color_deconverter	call site: 00257	jsimd_can_ycc_rgb565
2	310	Pl_DCT::finish()	call site: 00310	jpeg_destroy_compress
1	20	FuzzHelper::doChecks()	call site: 00020

Runtime coverage analysis

Covered functions

208

Functions that are reachable but not covered

128

Reachable functions

237

Percentage of reachable functions covered

45.99%

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/qpdf/fuzz/dct_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_DCT.cc	13
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/qpdf/Util.hh	2
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/libjpeg-turbo/src/jerror.c	1
/src/libjpeg-turbo/src/jcapimin.c	4
/src/libjpeg-turbo/src/jmemmgr.c	1
/src/libjpeg-turbo/src/jmemnobs.c	3
/src/libjpeg-turbo/src/jcparam.c	7
/src/libjpeg-turbo/src/jcomapi.c	4
/src/libjpeg-turbo/src/jstdhuff.c	2
/src/libjpeg-turbo/src/wrapper/../jcapistd.c	2
/src/libjpeg-turbo/src/jcinit.c	1
/src/libjpeg-turbo/src/jcmaster.c	4
/src/libjpeg-turbo/src/wrapper/../jutils.c	2
/src/libjpeg-turbo/src/wrapper/../jccolor.c	3
/src/libjpeg-turbo/simd/x86_64/jsimd.c	20
/src/libjpeg-turbo/src/wrapper/../jcsample.c	3
/src/libjpeg-turbo/src/wrapper/../jcprepct.c	4
/src/libjpeg-turbo/src/wrapper/../jclossls.c	3
/src/libjpeg-turbo/src/jclhuff.c	1
/src/libjpeg-turbo/src/wrapper/../jcdiffct.c	3
/src/libjpeg-turbo/src/wrapper/../jcdctmgr.c	2
/src/libjpeg-turbo/src/jcarith.c	1
/src/libjpeg-turbo/src/jcphuff.c	1
/src/libjpeg-turbo/src/jchuff.c	1
/src/libjpeg-turbo/src/wrapper/../jccoefct.c	2
/src/libjpeg-turbo/src/wrapper/../jcmainct.c	3
/src/libjpeg-turbo/src/jcmarker.c	1
/src/qpdf/include/qpdf/QIntC.hh	9
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	1
/src/libjpeg-turbo/src/jdapimin.c	6
/src/libjpeg-turbo/src/jdmarker.c	2
/src/libjpeg-turbo/src/jdinput.c	1
/src/libjpeg-turbo/src/jdmaster.c	6
/src/libjpeg-turbo/src/wrapper/../jdapistd.c	3
/src/libjpeg-turbo/src/wrapper/../jquant1.c	8
/src/libjpeg-turbo/src/wrapper/../jquant2.c	3
/src/libjpeg-turbo/src/wrapper/../jdmerge.c	3
/src/libjpeg-turbo/src/wrapper/../jdcolor.c	5
/src/libjpeg-turbo/src/wrapper/../jdsample.c	3
/src/libjpeg-turbo/src/wrapper/../jdpostct.c	3
/src/libjpeg-turbo/src/wrapper/../jdlossls.c	3
/src/libjpeg-turbo/src/jdlhuff.c	1
/src/libjpeg-turbo/src/wrapper/../jddiffct.c	3
/src/libjpeg-turbo/src/wrapper/../jddctmgr.c	2
/src/libjpeg-turbo/src/jdarith.c	1
/src/libjpeg-turbo/src/jdphuff.c	1
/src/libjpeg-turbo/src/jdhuff.c	1
/src/libjpeg-turbo/src/wrapper/../jdcoefct.c	2
/src/libjpeg-turbo/src/wrapper/../jdmainct.c	4

Fuzzer: future_dct_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	182	55.3%
gold	[1:9]	18	5.47%
yellow	[10:29]	6	1.82%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	123	37.3%
All colors	329	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
56	99	init_simd	call site: 00099	jinit_forward_dct
32	50	std_huff_tables	call site: 00050	jpeg_start_compress
30	156	unsigned int QIntC::to_uint (int const&)	call site: 00156	jpeg_finish_compress
19	233	master_selection	call site: 00233	jinit_1pass_quantizer
11	34	jinit_memory_mgr	call site: 00034	jpeg_set_defaults
9	209	jpeg_core_output_dimensions	call site: 00209	jdiv_round_up
7	201	jpeg_calc_output_dimensions	call site: 00201	jdiv_round_up
5	12	Pl_DCT::Pl_DCT(char const*, Pipeline*)	call site: 00012	__cxa_allocate_exception
3	25	Pl_DCT::finish()	call site: 00025	jpeg_CreateCompress
3	257	jinit_color_deconverter	call site: 00257	jsimd_can_ycc_rgb565
2	310	Pl_DCT::finish()	call site: 00310	jpeg_destroy_compress
1	20	FuzzHelper::doChecks()	call site: 00020

Runtime coverage analysis

Covered functions

208

Functions that are reachable but not covered

128

Reachable functions

237

Percentage of reachable functions covered

45.99%

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/qpdf/fuzz/dct_fuzzer.cc	4
/src/qpdf/libqpdf/Pl_DCT.cc	13
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	1
/src/qpdf/libqpdf/qpdf/Util.hh	2
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/libjpeg-turbo/src/jerror.c	1
/src/libjpeg-turbo/src/jcapimin.c	4
/src/libjpeg-turbo/src/jmemmgr.c	1
/src/libjpeg-turbo/src/jmemnobs.c	3
/src/libjpeg-turbo/src/jcparam.c	7
/src/libjpeg-turbo/src/jcomapi.c	4
/src/libjpeg-turbo/src/jstdhuff.c	2
/src/libjpeg-turbo/src/wrapper/../jcapistd.c	2
/src/libjpeg-turbo/src/jcinit.c	1
/src/libjpeg-turbo/src/jcmaster.c	4
/src/libjpeg-turbo/src/wrapper/../jutils.c	2
/src/libjpeg-turbo/src/wrapper/../jccolor.c	3
/src/libjpeg-turbo/simd/x86_64/jsimd.c	20
/src/libjpeg-turbo/src/wrapper/../jcsample.c	3
/src/libjpeg-turbo/src/wrapper/../jcprepct.c	4
/src/libjpeg-turbo/src/wrapper/../jclossls.c	3
/src/libjpeg-turbo/src/jclhuff.c	1
/src/libjpeg-turbo/src/wrapper/../jcdiffct.c	3
/src/libjpeg-turbo/src/wrapper/../jcdctmgr.c	2
/src/libjpeg-turbo/src/jcarith.c	1
/src/libjpeg-turbo/src/jcphuff.c	1
/src/libjpeg-turbo/src/jchuff.c	1
/src/libjpeg-turbo/src/wrapper/../jccoefct.c	2
/src/libjpeg-turbo/src/wrapper/../jcmainct.c	3
/src/libjpeg-turbo/src/jcmarker.c	1
/src/qpdf/include/qpdf/QIntC.hh	9
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	1
/src/libjpeg-turbo/src/jdapimin.c	6
/src/libjpeg-turbo/src/jdmarker.c	2
/src/libjpeg-turbo/src/jdinput.c	1
/src/libjpeg-turbo/src/jdmaster.c	6
/src/libjpeg-turbo/src/wrapper/../jdapistd.c	3
/src/libjpeg-turbo/src/wrapper/../jquant1.c	8
/src/libjpeg-turbo/src/wrapper/../jquant2.c	3
/src/libjpeg-turbo/src/wrapper/../jdmerge.c	3
/src/libjpeg-turbo/src/wrapper/../jdcolor.c	5
/src/libjpeg-turbo/src/wrapper/../jdsample.c	3
/src/libjpeg-turbo/src/wrapper/../jdpostct.c	3
/src/libjpeg-turbo/src/wrapper/../jdlossls.c	3
/src/libjpeg-turbo/src/jdlhuff.c	1
/src/libjpeg-turbo/src/wrapper/../jddiffct.c	3
/src/libjpeg-turbo/src/wrapper/../jddctmgr.c	2
/src/libjpeg-turbo/src/jdarith.c	1
/src/libjpeg-turbo/src/jdphuff.c	1
/src/libjpeg-turbo/src/jdhuff.c	1
/src/libjpeg-turbo/src/wrapper/../jdcoefct.c	2
/src/libjpeg-turbo/src/wrapper/../jdmainct.c	4

Fuzzer: future_json_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	2362	75.7%
gold	[1:9]	25	0.80%
yellow	[10:29]	44	1.41%
greenyellow	[30:49]	24	0.76%
lawngreen	50+	662	21.2%
All colors	3117	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
220	2661	std::__1::shared_ptr QPDFObject::create (bool&)	call site: 02661	_ZN4qpdf7IntegerC2ITkNSt3__18integralEmEET_
201	2053	QUtil::hex_decode(std::__1::basic_string , std::__1::allocator > const&)	call site: 02053	__cxa_allocate_exception
180	1649	std::__1::shared_ptr QPDFObject::create , std::__1::allocator > >(std::__1::basic_string , std::__1::allocator >&&)	call site: 01649	__cxa_allocate_exception
157	1895	QPDF::EncryptionParameters::initialize(QPDF&)	call site: 01895	__cxa_allocate_exception
97	2419	QPDFObjectHandle::getObjectID() const	call site: 02419	__cxa_allocate_exception
86	1370	QPDFObjectHandle::getIntValueAsInt() const	call site: 01370	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralExEEv
85	1465	QPDFObjectHandle::getName() const	call site: 01465	__cxa_allocate_exception
77	804	QPDFObject::move_to(std::__1::shared_ptr &, bool)	call site: 00804	__cxa_allocate_exception
70	1252	qpdf::BaseDictionary::BaseDictionary(QPDFObjectHandle const&)	call site: 01252	__cxa_allocate_exception
64	1085	QPDFLogger::defaultLogger()	call site: 01085	__cxa_end_catch
59	2263	QPDF::Doc::Objects::readTrailer()	call site: 02263	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralEjEEv
44	703	qpdf::impl::Parser::parse_remainder(bool)	call site: 00703	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

461

Functions that are reachable but not covered

787

Reachable functions

1497

Percentage of reachable functions covered

47.43%

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/qpdf/fuzz/json_fuzzer.cc	4
/src/qpdf/libqpdf/JSON.cc	28
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	8
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Util.hh	15
/src/qpdf/libqpdf/QUtil.cc	12
/src/qpdf/include/qpdf/QIntC.hh	37
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	5
/src/qpdf/include/qpdf/JSON.hh	7
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	26
/src/qpdf/libqpdf/Buffer.cc	4
/src/qpdf/libqpdf/QPDF_json.cc	5
/src/qpdf/libqpdf/QPDF_objects.cc	50
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	34
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	3
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	88
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	17
/src/qpdf/libqpdf/QPDFObjectHandle.cc	62
/src/qpdf/libqpdf/QPDF_Dictionary.cc	16
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_Discard.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	12
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	2
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Flate.cc	1
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	42
/src/qpdf/libqpdf/MD5.cc	5
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	3
/src/qpdf/libqpdf/Pl_AES_PDF.cc	7
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6

Fuzzer: qpdf_pages_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	936	16.6%
gold	[1:9]	118	2.10%
yellow	[10:29]	140	2.49%
greenyellow	[30:49]	65	1.15%
lawngreen	50+	4356	77.5%
All colors	5615	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
54	5234	(anonymous namespace)::JSONParser::getToken()	call site: 05234	__cxa_allocate_exception
19	2397	qpdf::BaseHandle::copy(bool) const	call site: 02397	__cxa_allocate_exception
19	4249	qpdf::Name::normalize(std::__1::basic_string , std::__1::allocator > const&)	call site: 04249	__cxa_allocate_exception
19	5362	(anonymous namespace)::JSONParser::handleToken()	call site: 05362	__cxa_allocate_exception
19	5447	(anonymous namespace)::JSONParser::handleToken()	call site: 05447	__cxa_allocate_exception
14	4097	qpdf::Stream::copy_data_to(qpdf::Stream&)	call site: 04097	__cxa_allocate_exception
13	5084	qpdf::BaseHandle::write_json(int, JSON::Writer&) const	call site: 05084
11	175	qpdf::Tokenizer::inBeforeToken(char)	call site: 00175	__cxa_allocate_exception
11	4880	void QIntC::range_check_error (long long const&, long long const&)	call site: 04880	__cxa_allocate_exception
11	5315	(anonymous namespace)::JSONParser::getToken()	call site: 05315	__cxa_allocate_exception
11	5328	(anonymous namespace)::JSONParser::getToken()	call site: 05328	__cxa_allocate_exception
10	911	qpdf::Stream::Stream(std::__1::shared_ptr const&)	call site: 00911	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1455

Functions that are reachable but not covered

234

Reachable functions

2306

Percentage of reachable functions covered

89.85%

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/qpdf/fuzz/qpdf_pages_fuzzer.cc	8
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	1
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	2
/src/qpdf/libqpdf/BufferInputSource.cc	3
/src/qpdf/include/qpdf/InputSource.hh	4
/src/qpdf/include/qpdf/QIntC.hh	48
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	5
/src/qpdf/libqpdf/QPDF.cc	23
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	38
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	22
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	44
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	27
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	22
/src/qpdf/include/qpdf/ObjectHandle.hh	10
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	117
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	35
/src/qpdf/libqpdf/QPDFObjectHandle.cc	115
/src/qpdf/libqpdf/QPDF_Dictionary.cc	18
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	25
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	2
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	42
/src/qpdf/libqpdf/MD5.cc	5
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	7
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	11
/src/qpdf/include/qpdf/QPDFDocumentHelper.hh	1
/src/qpdf/libqpdf/QPDFPageLabelDocumentHelper.cc	4
/src/qpdf/libqpdf/NNTree.cc	40
/src/qpdf/libqpdf/qpdf/NNTree.hh	15
/src/qpdf/libqpdf/QPDFDocumentHelper.cc	1
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	6
/src/qpdf/include/qpdf/QPDFOutlineObjectHelper.hh	3
/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc	5
/src/qpdf/include/qpdf/QPDFObjectHelper.hh	6
/src/qpdf/libqpdf/QPDFObjectHelper.cc	1
/src/qpdf/libqpdf/QPDFAcroFormDocumentHelper.cc	11
/src/qpdf/include/qpdf/QPDFPageDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFPageObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFPageObjectHelper.cc	10
/src/qpdf/include/qpdf/QPDFAnnotationObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFFormFieldObjectHelper.cc	34
/src/qpdf/libqpdf/qpdf/AcroForm.hh	17
/src/qpdf/include/qpdf/QPDFFormFieldObjectHelper.hh	3
/src/qpdf/libqpdf/QPDFAnnotationObjectHelper.cc	7
/src/qpdf/libqpdf/Pl_QPDFTokenizer.cc	3
/src/qpdf/libqpdf/QPDF_String.cc	4
/src/qpdf/libqpdf/QPDFMatrix.cc	11
/src/qpdf/include/qpdf/QPDFNumberTreeObjectHelper.hh	1
/src/qpdf/libqpdf/JSON.cc	29
/src/qpdf/libqpdf/qpdf/JSON_writer.hh	8
/src/qpdf/include/qpdf/JSON.hh	5
/src/qpdf/libqpdf/Pl_String.cc	2
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.hh	1
/src/qpdf/include/qpdf/QPDFAcroFormDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFOutlineDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFPageLabelDocumentHelper.hh	1

Fuzzer: future_qpdf_pages_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	941	16.7%
gold	[1:9]	156	2.77%
yellow	[10:29]	113	2.01%
greenyellow	[30:49]	66	1.17%
lawngreen	50+	4337	77.2%
All colors	5613	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
54	5232	(anonymous namespace)::JSONParser::getToken()	call site: 05232	__cxa_allocate_exception
19	2395	qpdf::BaseHandle::copy(bool) const	call site: 02395	__cxa_allocate_exception
19	4247	qpdf::Name::normalize(std::__1::basic_string , std::__1::allocator > const&)	call site: 04247	__cxa_allocate_exception
19	5360	(anonymous namespace)::JSONParser::handleToken()	call site: 05360	__cxa_allocate_exception
19	5445	(anonymous namespace)::JSONParser::handleToken()	call site: 05445	__cxa_allocate_exception
16	3242	NNTreeIterator::resetLimits(qpdf::Dictionary, std::__1::__list_iterator )	call site: 03242
14	4095	qpdf::Stream::copy_data_to(qpdf::Stream&)	call site: 04095	__cxa_allocate_exception
13	5082	qpdf::BaseHandle::write_json(int, JSON::Writer&) const	call site: 05082
11	166	qpdf::Tokenizer::inBeforeToken(char)	call site: 00166	__cxa_allocate_exception
11	5313	(anonymous namespace)::JSONParser::getToken()	call site: 05313	__cxa_allocate_exception
11	5326	(anonymous namespace)::JSONParser::getToken()	call site: 05326	__cxa_allocate_exception
10	909	qpdf::Stream::Stream(std::__1::shared_ptr const&)	call site: 00909	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1444

Functions that are reachable but not covered

234

Reachable functions

2306

Percentage of reachable functions covered

89.85%

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/qpdf/fuzz/qpdf_pages_fuzzer.cc	8
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	1
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	2
/src/qpdf/libqpdf/BufferInputSource.cc	3
/src/qpdf/include/qpdf/InputSource.hh	4
/src/qpdf/libqpdf/QPDF.cc	23
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	38
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	22
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	48
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	5
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	44
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	27
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	22
/src/qpdf/include/qpdf/ObjectHandle.hh	10
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	117
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	35
/src/qpdf/libqpdf/QPDFObjectHandle.cc	115
/src/qpdf/libqpdf/QPDF_Dictionary.cc	18
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	25
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	2
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	42
/src/qpdf/libqpdf/MD5.cc	5
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	7
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	11
/src/qpdf/include/qpdf/QPDFDocumentHelper.hh	1
/src/qpdf/libqpdf/QPDFPageLabelDocumentHelper.cc	4
/src/qpdf/libqpdf/NNTree.cc	40
/src/qpdf/libqpdf/qpdf/NNTree.hh	15
/src/qpdf/libqpdf/QPDFDocumentHelper.cc	1
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	6
/src/qpdf/include/qpdf/QPDFOutlineObjectHelper.hh	3
/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc	5
/src/qpdf/include/qpdf/QPDFObjectHelper.hh	6
/src/qpdf/libqpdf/QPDFObjectHelper.cc	1
/src/qpdf/libqpdf/QPDFAcroFormDocumentHelper.cc	11
/src/qpdf/include/qpdf/QPDFPageDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFPageObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFPageObjectHelper.cc	10
/src/qpdf/include/qpdf/QPDFAnnotationObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFFormFieldObjectHelper.cc	34
/src/qpdf/libqpdf/qpdf/AcroForm.hh	17
/src/qpdf/include/qpdf/QPDFFormFieldObjectHelper.hh	3
/src/qpdf/libqpdf/QPDFAnnotationObjectHelper.cc	7
/src/qpdf/libqpdf/Pl_QPDFTokenizer.cc	3
/src/qpdf/libqpdf/QPDF_String.cc	4
/src/qpdf/libqpdf/QPDFMatrix.cc	11
/src/qpdf/include/qpdf/QPDFNumberTreeObjectHelper.hh	1
/src/qpdf/libqpdf/JSON.cc	29
/src/qpdf/libqpdf/qpdf/JSON_writer.hh	8
/src/qpdf/include/qpdf/JSON.hh	5
/src/qpdf/libqpdf/Pl_String.cc	2
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.hh	1
/src/qpdf/include/qpdf/QPDFAcroFormDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFOutlineDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFPageLabelDocumentHelper.hh	1

Fuzzer: qpdf_lin_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	992	20.9%
gold	[1:9]	106	2.23%
yellow	[10:29]	101	2.13%
greenyellow	[30:49]	75	1.58%
lawngreen	50+	3461	73.0%
All colors	4735	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
88	4626	qpdf::impl::Writer::write()	call site: 04626	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
39	4403	qpdf::impl::Writer::writeLinearized()	call site: 04403	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
28	2967	ObjTable ::large_element(unsigned long)	call site: 02967	__cxa_allocate_exception
25	1382	QPDF::EncryptionParameters::interpretCF(qpdf::Name const&) const	call site: 01382
22	2394	qpdf::BaseHandle::copy(bool) const	call site: 02394	__cxa_allocate_exception
22	4180	qpdf::impl::Writer::unparseObject(QPDFObjectHandle, unsigned long, int, unsigned long, bool)	call site: 04180
18	3429	qpdf::impl::Writer::writeLinearized()	call site: 03429	fopen
17	4110	qpdf::BaseHandle::unparse() const	call site: 04110	__cxa_allocate_exception
16	2739	QPDF::Doc::Objects::parse(char const*)	call site: 02739	__cxa_begin_catch
16	2905	qpdf::impl::Writer::doWriteSetup()	call site: 02905
15	1246	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01246	__cxa_allocate_exception
15	3681	deflate	call site: 03681	crc32

Runtime coverage analysis

Covered functions

1376

Functions that are reachable but not covered

327

Reachable functions

2138

Percentage of reachable functions covered

84.71%

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
/src/qpdf/fuzz/qpdf_lin_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	44
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	84
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: qpdf_crypt_insecure_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	1640	34.2%
gold	[1:9]	88	1.83%
yellow	[10:29]	91	1.90%
greenyellow	[30:49]	66	1.37%
lawngreen	50+	2899	60.5%
All colors	4784	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
236	3199	qpdf::impl::Writer::write()	call site: 03199	__assert_fail
79	4491	qpdf::impl::Writer::writeEncryptionDictionary()	call site: 04491	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
76	3016	ObjTable ::large_element(unsigned long)	call site: 03016	__cxa_allocate_exception
57	4396	qpdf::impl::Writer::writeObject(QPDFObjectHandle, int)	call site: 04396	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEmEERS1_T_
50	4682	qpdf::impl::Writer::writeStandard()	call site: 04682
47	2906	qpdf::impl::Writer::doWriteSetup()	call site: 02906
39	4607	BitWriter::flush()	call site: 04607
34	4334	qpdf::impl::Writer::writeObject(QPDFObjectHandle, int)	call site: 04334	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
30	4576	BitWriter::writeBits(unsigned long long, unsigned long)	call site: 04576	__cxa_allocate_exception
29	3476	(anonymous namespace)::Pl_stack::popper()	call site: 03476	fopen
27	4647	qpdf::pl::Count::~Count()	call site: 04647	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
26	2806	qpdf::impl::Writer::generateID(bool)	call site: 02806	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1287

Functions that are reachable but not covered

486

Reachable functions

2154

Percentage of reachable functions covered

77.44%

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/qpdf/fuzz/qpdf_crypt_insecure_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	22
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	50
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	85
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: future_qpdf_crypt_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	933	19.5%
gold	[1:9]	98	2.04%
yellow	[10:29]	116	2.42%
greenyellow	[30:49]	41	0.85%
lawngreen	50+	3596	75.1%
All colors	4784	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
88	4675	qpdf::impl::Writer::write()	call site: 04675	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
47	2906	qpdf::impl::Writer::doWriteSetup()	call site: 02906
26	2806	qpdf::impl::Writer::generateID(bool)	call site: 02806	__cxa_allocate_exception
22	2392	qpdf::BaseHandle::copy(bool) const	call site: 02392	__cxa_allocate_exception
18	3478	qpdf::impl::Writer::writeLinearized()	call site: 03478	fopen
17	4159	qpdf::BaseHandle::unparse() const	call site: 04159	__cxa_allocate_exception
16	2737	QPDF::Doc::Objects::parse(char const*)	call site: 02737	__cxa_begin_catch
16	2843	qpdf::impl::Writer::setEncryptionParameters(char const*, char const*)	call site: 02843	__cxa_allocate_exception
16	2954	qpdf::impl::Writer::doWriteSetup()	call site: 02954
15	1244	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01244	__cxa_allocate_exception
15	3730	deflate	call site: 03730	crc32
15	4271	qpdf::impl::Writer::writeTrailer(qpdf::impl::Writer::trailer_e, int, bool, long long, int)	call site: 04271	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1380

Functions that are reachable but not covered

335

Reachable functions

2156

Percentage of reachable functions covered

84.46%

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/qpdf/fuzz/qpdf_crypt_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	22
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	50
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	86
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: json_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	2362	75.7%
gold	[1:9]	26	0.83%
yellow	[10:29]	34	1.09%
greenyellow	[30:49]	27	0.86%
lawngreen	50+	668	21.4%
All colors	3117	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
220	2661	std::__1::shared_ptr QPDFObject::create (bool&)	call site: 02661	_ZN4qpdf7IntegerC2ITkNSt3__18integralEmEET_
201	2053	QUtil::hex_decode(std::__1::basic_string , std::__1::allocator > const&)	call site: 02053	__cxa_allocate_exception
180	1649	std::__1::shared_ptr QPDFObject::create , std::__1::allocator > >(std::__1::basic_string , std::__1::allocator >&&)	call site: 01649	__cxa_allocate_exception
157	1895	QPDF::EncryptionParameters::initialize(QPDF&)	call site: 01895	__cxa_allocate_exception
97	2419	QPDFObjectHandle::getObjectID() const	call site: 02419	__cxa_allocate_exception
86	1370	QPDFObjectHandle::getIntValueAsInt() const	call site: 01370	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralExEEv
85	1465	QPDFObjectHandle::getName() const	call site: 01465	__cxa_allocate_exception
77	804	QPDFObject::move_to(std::__1::shared_ptr &, bool)	call site: 00804	__cxa_allocate_exception
70	1252	qpdf::BaseDictionary::BaseDictionary(QPDFObjectHandle const&)	call site: 01252	__cxa_allocate_exception
64	1085	QPDFLogger::defaultLogger()	call site: 01085	__cxa_end_catch
59	2263	QPDF::Doc::Objects::readTrailer()	call site: 02263	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralEjEEv
44	703	qpdf::impl::Parser::parse_remainder(bool)	call site: 00703	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

460

Functions that are reachable but not covered

787

Reachable functions

1497

Percentage of reachable functions covered

47.43%

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/qpdf/fuzz/json_fuzzer.cc	4
/src/qpdf/libqpdf/JSON.cc	28
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	8
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Util.hh	15
/src/qpdf/libqpdf/QUtil.cc	12
/src/qpdf/include/qpdf/QIntC.hh	37
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	5
/src/qpdf/include/qpdf/JSON.hh	7
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	26
/src/qpdf/libqpdf/Buffer.cc	4
/src/qpdf/libqpdf/QPDF_json.cc	5
/src/qpdf/libqpdf/QPDF_objects.cc	50
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	34
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	3
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	88
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	17
/src/qpdf/libqpdf/QPDFObjectHandle.cc	62
/src/qpdf/libqpdf/QPDF_Dictionary.cc	16
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_Discard.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	12
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	2
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Flate.cc	1
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	42
/src/qpdf/libqpdf/MD5.cc	5
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	3
/src/qpdf/libqpdf/Pl_AES_PDF.cc	7
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6

Fuzzer: qpdf_crypt_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	938	19.5%
gold	[1:9]	120	2.50%
yellow	[10:29]	94	1.96%
greenyellow	[30:49]	67	1.39%
lawngreen	50+	3567	74.5%
All colors	4786	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
88	4677	qpdf::impl::Writer::write()	call site: 04677	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
47	2908	qpdf::impl::Writer::doWriteSetup()	call site: 02908
26	2808	qpdf::impl::Writer::generateID(bool)	call site: 02808	__cxa_allocate_exception
22	2394	qpdf::BaseHandle::copy(bool) const	call site: 02394	__cxa_allocate_exception
18	3480	qpdf::impl::Writer::writeLinearized()	call site: 03480	fopen
17	4161	qpdf::BaseHandle::unparse() const	call site: 04161	__cxa_allocate_exception
16	2739	QPDF::Doc::Objects::parse(char const*)	call site: 02739	__cxa_begin_catch
16	2845	qpdf::impl::Writer::setEncryptionParameters(char const*, char const*)	call site: 02845	__cxa_allocate_exception
16	2956	qpdf::impl::Writer::doWriteSetup()	call site: 02956
15	1246	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01246	__cxa_allocate_exception
15	3732	deflate	call site: 03732	crc32
15	4273	qpdf::impl::Writer::writeTrailer(qpdf::impl::Writer::trailer_e, int, bool, long long, int)	call site: 04273	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1378

Functions that are reachable but not covered

335

Reachable functions

2156

Percentage of reachable functions covered

84.46%

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/qpdf/fuzz/qpdf_crypt_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	22
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	50
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	86
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: future_qpdf_crypt_insecure_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	1643	34.3%
gold	[1:9]	108	2.25%
yellow	[10:29]	80	1.67%
greenyellow	[30:49]	67	1.40%
lawngreen	50+	2884	60.3%
All colors	4782	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
236	3197	qpdf::impl::Writer::write()	call site: 03197	__assert_fail
79	4489	qpdf::impl::Writer::writeEncryptionDictionary()	call site: 04489	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
76	3014	ObjTable ::large_element(unsigned long)	call site: 03014	__cxa_allocate_exception
57	4394	qpdf::impl::Writer::writeObject(QPDFObjectHandle, int)	call site: 04394	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEmEERS1_T_
50	4680	qpdf::impl::Writer::writeStandard()	call site: 04680
47	2904	qpdf::impl::Writer::doWriteSetup()	call site: 02904
39	4605	BitWriter::flush()	call site: 04605
34	4332	qpdf::impl::Writer::writeObject(QPDFObjectHandle, int)	call site: 04332	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
30	4574	BitWriter::writeBits(unsigned long long, unsigned long)	call site: 04574	__cxa_allocate_exception
29	3474	(anonymous namespace)::Pl_stack::popper()	call site: 03474	fopen
27	4645	qpdf::pl::Count::~Count()	call site: 04645	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
26	2804	qpdf::impl::Writer::generateID(bool)	call site: 02804	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1291

Functions that are reachable but not covered

486

Reachable functions

2154

Percentage of reachable functions covered

77.44%

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/qpdf/fuzz/qpdf_crypt_insecure_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	22
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	50
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	85
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: future_qpdf_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	1418	29.9%
gold	[1:9]	117	2.47%
yellow	[10:29]	74	1.56%
greenyellow	[30:49]	61	1.28%
lawngreen	50+	3060	64.6%
All colors	4730	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
225	3145	qpdf::impl::Writer::write()	call site: 03145	__assert_fail
120	4396	qpdf::impl::Writer::writeObjectStream(QPDFObjectHandle)	call site: 04396	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
81	3666	Pl_Flate::checkError(char const*, int)	call site: 03666	deflate
50	4628	qpdf::impl::Writer::writeStandard()	call site: 04628
42	2844	qpdf::impl::Writer::generateID(bool)	call site: 02844
39	4553	BitWriter::flush()	call site: 04553
30	4522	BitWriter::writeBits(unsigned long long, unsigned long)	call site: 04522	__cxa_allocate_exception
27	4593	qpdf::pl::Count::~Count()	call site: 04593	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
23	3422	(anonymous namespace)::Pl_stack::popper()	call site: 03422	fopen
23	3471	qpdf::impl::Writer::openObject(int)	call site: 03471	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
23	3625	unsigned int QIntC::to_uint (unsigned long const&)	call site: 03625	deflateInit_
22	2392	qpdf::BaseHandle::copy(bool) const	call site: 02392	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1321

Functions that are reachable but not covered

440

Reachable functions

2134

Percentage of reachable functions covered

79.38%

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/qpdf/fuzz/qpdf_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	44
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	82
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: future_qpdf_lin_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	969	20.4%
gold	[1:9]	130	2.74%
yellow	[10:29]	87	1.83%
greenyellow	[30:49]	77	1.62%
lawngreen	50+	3470	73.3%
All colors	4733	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
88	4624	qpdf::impl::Writer::write()	call site: 04624	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
39	4401	qpdf::impl::Writer::writeLinearized()	call site: 04401	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
28	2965	ObjTable ::large_element(unsigned long)	call site: 02965	__cxa_allocate_exception
22	2392	qpdf::BaseHandle::copy(bool) const	call site: 02392	__cxa_allocate_exception
22	4178	qpdf::impl::Writer::unparseObject(QPDFObjectHandle, unsigned long, int, unsigned long, bool)	call site: 04178
18	3427	qpdf::impl::Writer::writeLinearized()	call site: 03427	fopen
17	4108	qpdf::BaseHandle::unparse() const	call site: 04108	__cxa_allocate_exception
16	2737	QPDF::Doc::Objects::parse(char const*)	call site: 02737	__cxa_begin_catch
16	2903	qpdf::impl::Writer::doWriteSetup()	call site: 02903
15	1244	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01244	__cxa_allocate_exception
15	3679	deflate	call site: 03679	crc32
13	2996	qpdf::BaseDictionary::crbegin()	call site: 02996

Runtime coverage analysis

Covered functions

1381

Functions that are reachable but not covered

325

Reachable functions

2138

Percentage of reachable functions covered

84.8%

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/qpdf/fuzz/qpdf_lin_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	44
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	84
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: qpdf_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	1424	30.0%
gold	[1:9]	105	2.21%
yellow	[10:29]	76	1.60%
greenyellow	[30:49]	57	1.20%
lawngreen	50+	3070	64.8%
All colors	4732	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
225	3147	qpdf::impl::Writer::write()	call site: 03147	__assert_fail
120	4398	qpdf::impl::Writer::writeObjectStream(QPDFObjectHandle)	call site: 04398	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
81	3668	Pl_Flate::checkError(char const*, int)	call site: 03668	deflate
50	4630	qpdf::impl::Writer::writeStandard()	call site: 04630
42	2846	qpdf::impl::Writer::generateID(bool)	call site: 02846
39	4555	BitWriter::flush()	call site: 04555
30	4524	BitWriter::writeBits(unsigned long long, unsigned long)	call site: 04524	__cxa_allocate_exception
27	4595	qpdf::pl::Count::~Count()	call site: 04595	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
23	3424	(anonymous namespace)::Pl_stack::popper()	call site: 03424	fopen
23	3473	qpdf::impl::Writer::openObject(int)	call site: 03473	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
23	3627	unsigned int QIntC::to_uint (unsigned long const&)	call site: 03627	deflateInit_
22	2394	qpdf::BaseHandle::copy(bool) const	call site: 02394	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1319

Functions that are reachable but not covered

436

Reachable functions

2134

Percentage of reachable functions covered

79.57%

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/qpdf/fuzz/qpdf_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	5
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	13
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	10
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QIntC.hh	47
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	6
/src/qpdf/libqpdf/QPDF.cc	27
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	43
/src/qpdf/libqpdf/QPDF_objects.cc	57
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	30
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	33
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	9
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	35
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	9
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	97
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	23
/src/qpdf/libqpdf/QPDFObjectHandle.cc	73
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	20
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	15
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	44
/src/qpdf/libqpdf/MD5.cc	7
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	4
/src/qpdf/libqpdf/Pl_AES_PDF.cc	8
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFWriter.cc	82
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	27
/src/qpdf/libqpdf/QPDFUsage.cc	1
/src/qpdf/include/qpdf/QPDFUsage.hh	1
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/QPDF_linearization.cc	24
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/qpdf/Pl_MD5.hh	3
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/qpdf/Pl_PNGFilter.hh	1
/src/zlib/deflate.c	16
/src/zlib/crc32.c	5
/src/zlib/adler32.c	2
/src/zlib/trees.c	20
/src/zlib/inflate.c	9
/src/zlib/inftrees.c	2
/src/zlib/inffast.c	1
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/Pl_RC4.cc	3
/src/qpdf/libqpdf/qpdf/Pl_RC4.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: qpdf_outlines_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	597	16.7%
gold	[1:9]	107	3.01%
yellow	[10:29]	70	1.96%
greenyellow	[30:49]	27	0.75%
lawngreen	50+	2753	77.4%
All colors	3554	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
57	2365	std::__1::shared_ptr QPDFObject::create , std::__1::allocator >&>(std::__1::basic_string , std::__1::allocator >&)	call site: 02365	__cxa_allocate_exception
23	2340	QPDF::Doc::Pages::getAllPagesInternal(QPDFObjectHandle, QPDFObjGen::set&, QPDFObjGen::set&, bool, bool)	call site: 02340	__cxa_allocate_exception
15	1246	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01246	__cxa_allocate_exception
12	1226	qpdf::Stream::pipeStreamData(Pipeline*, bool*, int, qpdf_stream_decode_level_e, bool, bool)	call site: 01226
11	175	qpdf::Tokenizer::inBeforeToken(char)	call site: 00175	__cxa_allocate_exception
10	911	qpdf::Stream::Stream(std::__1::shared_ptr const&)	call site: 00911	__cxa_allocate_exception
9	2739	QPDF::Doc::Objects::parse(char const*)	call site: 02739	__cxa_begin_catch
8	22	long long QIntC::to_offset (unsigned long const&)	call site: 00022	__cxa_allocate_exception
8	1397	QPDF::decryptStream(std::__1::shared_ptr , std::__1::shared_ptr , QPDF&, Pipeline*&, QPDFObjGen, QPDFObjectHandle&, bool, std::__1::unique_ptr >&)	call site: 01397
7	347	QPDF::warn(QPDFExc const&)	call site: 00347	__cxa_allocate_exception
7	1153	QPDFObjectHandle::getName() const	call site: 01153	__cxa_allocate_exception
7	1372	QPDF::decryptStream(std::__1::shared_ptr , std::__1::shared_ptr , QPDF&, Pipeline*&, QPDFObjGen, QPDFObjectHandle&, bool, std::__1::unique_ptr >&)	call site: 01372

Runtime coverage analysis

Covered functions

1031

Functions that are reachable but not covered

233

Reachable functions

1667

Percentage of reachable functions covered

86.02%

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/qpdf/fuzz/qpdf_outlines_fuzzer.cc	7
/src/qpdf/libqpdf/Buffer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	1
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	2
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/include/qpdf/QIntC.hh	43
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	5
/src/qpdf/libqpdf/QPDF.cc	20
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	30
/src/qpdf/libqpdf/QPDF_objects.cc	50
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	19
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	32
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	8
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	24
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	34
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	3
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	10
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	106
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	30
/src/qpdf/libqpdf/QPDFObjectHandle.cc	67
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	12
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	2
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	42
/src/qpdf/libqpdf/MD5.cc	5
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	3
/src/qpdf/libqpdf/Pl_AES_PDF.cc	7
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	3
/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc	3
/src/qpdf/libqpdf/NNTree.cc	32
/src/qpdf/libqpdf/qpdf/NNTree.hh	15
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.hh	1

Fuzzer: future_qpdf_outlines_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	612	17.2%
gold	[1:9]	122	3.43%
yellow	[10:29]	68	1.91%
greenyellow	[30:49]	32	0.90%
lawngreen	50+	2718	76.5%
All colors	3552	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
57	2363	std::__1::shared_ptr QPDFObject::create , std::__1::allocator >&>(std::__1::basic_string , std::__1::allocator >&)	call site: 02363	__cxa_allocate_exception
25	1380	QPDF::EncryptionParameters::interpretCF(qpdf::Name const&) const	call site: 01380
23	2338	QPDF::Doc::Pages::getAllPagesInternal(QPDFObjectHandle, QPDFObjGen::set&, QPDFObjGen::set&, bool, bool)	call site: 02338	__cxa_allocate_exception
15	1244	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01244	__cxa_allocate_exception
12	1224	qpdf::Stream::pipeStreamData(Pipeline*, bool*, int, qpdf_stream_decode_level_e, bool, bool)	call site: 01224
11	166	qpdf::Tokenizer::inBeforeToken(char)	call site: 00166	__cxa_allocate_exception
10	909	qpdf::Stream::Stream(std::__1::shared_ptr const&)	call site: 00909	__cxa_allocate_exception
10	1367	QPDF::decryptStream(std::__1::shared_ptr , std::__1::shared_ptr , QPDF&, Pipeline*&, QPDFObjGen, QPDFObjectHandle&, bool, std::__1::unique_ptr >&)	call site: 01367
9	2737	QPDF::Doc::Objects::parse(char const*)	call site: 02737	__cxa_begin_catch
8	41	unsigned long QIntC::to_size (long const&)	call site: 00041	__cxa_allocate_exception
7	338	QPDF::warn(QPDFExc const&)	call site: 00338	__cxa_allocate_exception
7	1151	QPDFObjectHandle::getName() const	call site: 01151	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1034

Functions that are reachable but not covered

235

Reachable functions

1667

Percentage of reachable functions covered

85.9%

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/qpdf/fuzz/qpdf_outlines_fuzzer.cc	7
/src/qpdf/libqpdf/Buffer.cc	4
/src/qpdf/libqpdf/Pl_Discard.cc	2
/src/qpdf/libqpdf/Pipeline.cc	6
/src/qpdf/libqpdf/Pl_DCT.cc	3
/src/qpdf/libqpdf/Pl_PNGFilter.cc	1
/src/qpdf/libqpdf/Pl_RunLength.cc	1
/src/qpdf/libqpdf/Pl_TIFFPredictor.cc	1
/src/qpdf/libqpdf/Pl_Flate.cc	2
/src/qpdf/libqpdf/BufferInputSource.cc	1
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/QPDF.cc	20
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	30
/src/qpdf/libqpdf/QPDF_objects.cc	50
/src/qpdf/libqpdf/InputSource.cc	7
/src/qpdf/libqpdf/qpdf/Util.hh	19
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/include/qpdf/QIntC.hh	43
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	5
/src/qpdf/libqpdf/QPDFExc.cc	3
/src/qpdf/libqpdf/QPDFLogger.cc	8
/src/qpdf/include/qpdf/QPDFExc.hh	2
/src/qpdf/libqpdf/QPDFTokenizer.cc	32
/src/qpdf/libqpdf/qpdf/InputSource_private.hh	8
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	24
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	34
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	5
/src/qpdf/libqpdf/qpdf/global_private.hh	5
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	3
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	13
/src/qpdf/include/qpdf/ObjectHandle.hh	10
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	106
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/usr/local/bin/../include/c++/v1/__exception/exception.h	1
/src/qpdf/libqpdf/QPDF_Array.cc	30
/src/qpdf/libqpdf/QPDFObjectHandle.cc	67
/src/qpdf/libqpdf/QPDF_Dictionary.cc	17
/src/qpdf/libqpdf/QPDFObject.cc	1
/src/qpdf/libqpdf/Pl_OStream.cc	1
/src/qpdf/include/qpdf/Pipeline.hh	2
/src/qpdf/libqpdf/QPDF_Stream.cc	12
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	2
/src/qpdf/libqpdf/qpdf/SF_FlateLzwDecode.hh	2
/src/qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_DCTDecode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCII85Decode.hh	1
/src/qpdf/libqpdf/qpdf/SF_ASCIIHexDecode.hh	1
/src/qpdf/libqpdf/qpdf/ContentNormalizer.hh	3
/src/qpdf/libqpdf/Pl_Count.cc	3
/src/qpdf/libqpdf/QPDF_encryption.cc	42
/src/qpdf/libqpdf/MD5.cc	5
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	3
/src/qpdf/libqpdf/RC4.cc	3
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.cc	4
/src/qpdf/libqpdf/Pl_Buffer.cc	3
/src/qpdf/libqpdf/Pl_AES_PDF.cc	7
/src/qpdf/libqpdf/CryptoRandomDataProvider.cc	1
/src/qpdf/libqpdf/qpdf/Pl_AES_PDF.hh	1
/src/qpdf/libqpdf/qpdf/Pl_SHA2.hh	1
/src/qpdf/libqpdf/QPDF_pages.cc	6
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	3
/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc	3
/src/qpdf/libqpdf/NNTree.cc	32
/src/qpdf/libqpdf/qpdf/NNTree.hh	15
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.hh	1