High level conclusions

Fuzzers reach 63.50% code coverage.

Fuzzers reach 58.76% 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 / 35875

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: 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: 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]	5	6.75%
lawngreen	50+	44	59.4%
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_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_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_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]	5	6.75%
lawngreen	50+	44	59.4%
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: 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_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: 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: 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: 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_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_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	2368	75.8%
gold	[1:9]	26	0.83%
yellow	[10:29]	49	1.56%
greenyellow	[30:49]	21	0.67%
lawngreen	50+	659	21.1%
All colors	3123	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
222	2666	std::__1::shared_ptr QPDFObject::create (bool&)	call site: 02666	_ZN4qpdf7IntegerC2ITkNSt3__18integralEmEET_
200	2062	QUtil::hex_decode(std::__1::basic_string , std::__1::allocator > const&)	call site: 02062	__cxa_allocate_exception
180	1653	std::__1::shared_ptr QPDFObject::create , std::__1::allocator > >(std::__1::basic_string , std::__1::allocator >&&)	call site: 01653	__cxa_allocate_exception
162	1899	QPDF::EncryptionParameters::initialize(QPDF&)	call site: 01899	__cxa_allocate_exception
97	2428	QPDFObjectHandle::getObjectID() const	call site: 02428	__cxa_allocate_exception
91	1370	QPDFObjectHandle::getIntValueAsInt() const	call site: 01370	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralExEEv
84	1470	QPDFObjectHandle::getName() const	call site: 01470	__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
60	2271	QPDF::Doc::Objects::readTrailer()	call site: 02271	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralEjEEv
44	703	QPDFParser::parseRemainder(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_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	599	16.8%
gold	[1:9]	113	3.17%
yellow	[10:29]	64	1.79%
greenyellow	[30:49]	30	0.84%
lawngreen	50+	2751	77.3%
All colors	3557	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
60	2362	std::__1::shared_ptr QPDFObject::create , std::__1::allocator >&>(std::__1::basic_string , std::__1::allocator >&)	call site: 02362	__cxa_allocate_exception
19	2341	QPDF::Doc::Pages::getAllPagesInternal(QPDFObjectHandle, QPDFObjGen::set&, QPDFObjGen::set&, bool, bool)	call site: 02341	__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	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	2742	QPDF::Doc::Objects::parse(char const*)	call site: 02742	__cxa_begin_catch
8	22	long long QIntC::to_offset (unsigned long const&)	call site: 00022	__cxa_allocate_exception
8	1395	QPDF::decryptStream(std::__1::shared_ptr , std::__1::shared_ptr , QPDF&, Pipeline*&, QPDFObjGen, QPDFObjectHandle&, bool, std::__1::unique_ptr >&)	call site: 01395
7	347	QPDF::warn(QPDFExc const&)	call site: 00347	__cxa_allocate_exception
7	1152	QPDFObjectHandle::getName() const	call site: 01152	__cxa_allocate_exception
7	1370	QPDF::decryptStream(std::__1::shared_ptr , std::__1::shared_ptr , QPDF&, Pipeline*&, QPDFObjGen, QPDFObjectHandle&, bool, std::__1::unique_ptr >&)	call site: 01370

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: 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_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	614	17.2%
gold	[1:9]	118	3.31%
yellow	[10:29]	68	1.91%
greenyellow	[30:49]	45	1.26%
lawngreen	50+	2710	76.2%
All colors	3555	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
60	2360	std::__1::shared_ptr QPDFObject::create , std::__1::allocator >&>(std::__1::basic_string , std::__1::allocator >&)	call site: 02360	__cxa_allocate_exception
25	1378	QPDF::EncryptionParameters::interpretCF(qpdf::Name const&) const	call site: 01378
19	2339	QPDF::Doc::Pages::getAllPagesInternal(QPDFObjectHandle, QPDFObjGen::set&, QPDFObjGen::set&, bool, bool)	call site: 02339	__cxa_allocate_exception
15	1242	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01242	__cxa_allocate_exception
12	1222	qpdf::Stream::pipeStreamData(Pipeline*, bool*, int, qpdf_stream_decode_level_e, bool, bool)	call site: 01222
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	1365	QPDF::decryptStream(std::__1::shared_ptr , std::__1::shared_ptr , QPDF&, Pipeline*&, QPDFObjGen, QPDFObjectHandle&, bool, std::__1::unique_ptr >&)	call site: 01365
9	2740	QPDF::Doc::Objects::parse(char const*)	call site: 02740	__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	1150	QPDFObjectHandle::getName() const	call site: 01150	__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

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: 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_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	1416	29.9%
gold	[1:9]	122	2.57%
yellow	[10:29]	60	1.26%
greenyellow	[30:49]	67	1.41%
lawngreen	50+	3064	64.7%
All colors	4729	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	4396	qpdf::impl::Writer::writeObjectStream(QPDFObjectHandle)	call site: 04396	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
81	3668	Pl_Flate::checkError(char const*, int)	call site: 03668	deflate
49	4628	qpdf::impl::Writer::writeStandard()	call site: 04628
41	2847	qpdf::impl::Writer::generateID(bool)	call site: 02847
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_
25	2389	qpdf::BaseHandle::copy(bool) const	call site: 02389	__cxa_allocate_exception
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_

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_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: 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	990	20.9%
gold	[1:9]	106	2.23%
yellow	[10:29]	115	2.42%
greenyellow	[30:49]	70	1.47%
lawngreen	50+	3453	72.9%
All colors	4734	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
87	4626	qpdf::impl::Writer::write()	call site: 04626	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
39	4403	qpdf::impl::Writer::writeLinearized()	call site: 04403	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
28	2969	ObjTable ::large_element(unsigned long)	call site: 02969	__cxa_allocate_exception
25	1380	QPDF::EncryptionParameters::interpretCF(qpdf::Name const&) const	call site: 01380
25	2391	qpdf::BaseHandle::copy(bool) const	call site: 02391	__cxa_allocate_exception
22	4183	qpdf::impl::Writer::unparseObject(QPDFObjectHandle, unsigned long, int, unsigned long, bool)	call site: 04183
18	3431	qpdf::impl::Writer::writeLinearized()	call site: 03431	fopen
17	4113	qpdf::BaseHandle::unparse() const	call site: 04113	__cxa_allocate_exception
16	2742	QPDF::Doc::Objects::parse(char const*)	call site: 02742	__cxa_begin_catch
16	2907	qpdf::impl::Writer::doWriteSetup()	call site: 02907
15	1244	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01244	__cxa_allocate_exception
15	3683	deflate	call site: 03683	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: 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	936	19.5%
gold	[1:9]	95	1.98%
yellow	[10:29]	121	2.52%
greenyellow	[30:49]	47	0.98%
lawngreen	50+	3584	74.9%
All colors	4783	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
87	4675	qpdf::impl::Writer::write()	call site: 04675	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
46	2909	qpdf::impl::Writer::doWriteSetup()	call site: 02909
26	2809	qpdf::impl::Writer::generateID(bool)	call site: 02809	__cxa_allocate_exception
25	2389	qpdf::BaseHandle::copy(bool) const	call site: 02389	__cxa_allocate_exception
18	3480	qpdf::impl::Writer::writeLinearized()	call site: 03480	fopen
17	4162	qpdf::BaseHandle::unparse() const	call site: 04162	__cxa_allocate_exception
16	2740	QPDF::Doc::Objects::parse(char const*)	call site: 02740	__cxa_begin_catch
16	2846	qpdf::impl::Writer::setEncryptionParameters(char const*, char const*)	call site: 02846	__cxa_allocate_exception
16	2956	qpdf::impl::Writer::doWriteSetup()	call site: 02956
15	1242	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01242	__cxa_allocate_exception
15	3732	deflate	call site: 03732	crc32
14	3075	qpdf::impl::Writer::preserveObjectStreams()	call site: 03075

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: 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	934	19.5%
gold	[1:9]	121	2.52%
yellow	[10:29]	84	1.75%
greenyellow	[30:49]	68	1.42%
lawngreen	50+	3578	74.7%
All colors	4785	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
87	4677	qpdf::impl::Writer::write()	call site: 04677	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
46	2911	qpdf::impl::Writer::doWriteSetup()	call site: 02911
26	2811	qpdf::impl::Writer::generateID(bool)	call site: 02811	__cxa_allocate_exception
25	2391	qpdf::BaseHandle::copy(bool) const	call site: 02391	__cxa_allocate_exception
18	3482	qpdf::impl::Writer::writeLinearized()	call site: 03482	fopen
17	4164	qpdf::BaseHandle::unparse() const	call site: 04164	__cxa_allocate_exception
16	2742	QPDF::Doc::Objects::parse(char const*)	call site: 02742	__cxa_begin_catch
16	2848	qpdf::impl::Writer::setEncryptionParameters(char const*, char const*)	call site: 02848	__cxa_allocate_exception
16	2958	qpdf::impl::Writer::doWriteSetup()	call site: 02958
15	1244	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01244	__cxa_allocate_exception
15	3734	deflate	call site: 03734	crc32
14	3077	qpdf::impl::Writer::preserveObjectStreams()	call site: 03077

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	1640	34.3%
gold	[1:9]	109	2.27%
yellow	[10:29]	89	1.86%
greenyellow	[30:49]	62	1.29%
lawngreen	50+	2881	60.2%
All colors	4781	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	4489	qpdf::impl::Writer::writeEncryptionDictionary()	call site: 04489	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
76	3016	ObjTable ::large_element(unsigned long)	call site: 03016	__cxa_allocate_exception
57	4394	qpdf::impl::Writer::writeObject(QPDFObjectHandle, int)	call site: 04394	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEmEERS1_T_
49	4680	qpdf::impl::Writer::writeStandard()	call site: 04680
46	2907	qpdf::impl::Writer::doWriteSetup()	call site: 02907
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	3476	(anonymous namespace)::Pl_stack::popper()	call site: 03476	fopen
27	4645	qpdf::pl::Count::~Count()	call site: 04645	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
26	2807	qpdf::impl::Writer::generateID(bool)	call site: 02807	__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: 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	1637	34.2%
gold	[1:9]	85	1.77%
yellow	[10:29]	119	2.48%
greenyellow	[30:49]	42	0.87%
lawngreen	50+	2900	60.6%
All colors	4783	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	3201	qpdf::impl::Writer::write()	call site: 03201	__assert_fail
79	4491	qpdf::impl::Writer::writeEncryptionDictionary()	call site: 04491	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
76	3018	ObjTable ::large_element(unsigned long)	call site: 03018	__cxa_allocate_exception
57	4396	qpdf::impl::Writer::writeObject(QPDFObjectHandle, int)	call site: 04396	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEmEERS1_T_
49	4682	qpdf::impl::Writer::writeStandard()	call site: 04682
46	2909	qpdf::impl::Writer::doWriteSetup()	call site: 02909
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	3478	(anonymous namespace)::Pl_stack::popper()	call site: 03478	fopen
27	4647	qpdf::pl::Count::~Count()	call site: 04647	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
26	2809	qpdf::impl::Writer::generateID(bool)	call site: 02809	__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: 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	929	16.5%
gold	[1:9]	123	2.19%
yellow	[10:29]	163	2.90%
greenyellow	[30:49]	53	0.94%
lawngreen	50+	4347	77.4%
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
57	5237	(anonymous namespace)::JSONParser::getToken()	call site: 05237	__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	5368	(anonymous namespace)::JSONParser::handleToken()	call site: 05368	__cxa_allocate_exception
18	5448	(anonymous namespace)::JSONParser::handleToken()	call site: 05448	__cxa_allocate_exception
14	4097	qpdf::Stream::copy_data_to(qpdf::Stream&)	call site: 04097	__cxa_allocate_exception
13	5082	qpdf::BaseHandle::write_json(int, JSON::Writer&) const	call site: 05082
11	175	qpdf::Tokenizer::inBeforeToken(char)	call site: 00175	__cxa_allocate_exception
11	4878	void QIntC::range_check_error (long long const&, long long const&)	call site: 04878	__cxa_allocate_exception
11	5321	(anonymous namespace)::JSONParser::getToken()	call site: 05321	__cxa_allocate_exception
11	5334	(anonymous namespace)::JSONParser::getToken()	call site: 05334	__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	937	16.6%
gold	[1:9]	161	2.86%
yellow	[10:29]	112	1.99%
greenyellow	[30:49]	58	1.03%
lawngreen	50+	4345	77.4%
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
57	5235	(anonymous namespace)::JSONParser::getToken()	call site: 05235	__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	5366	(anonymous namespace)::JSONParser::handleToken()	call site: 05366	__cxa_allocate_exception
18	5446	(anonymous namespace)::JSONParser::handleToken()	call site: 05446	__cxa_allocate_exception
16	3246	NNTreeIterator::resetLimits(qpdf::Dictionary, std::__1::__list_iterator )	call site: 03246
14	4095	qpdf::Stream::copy_data_to(qpdf::Stream&)	call site: 04095	__cxa_allocate_exception
13	5080	qpdf::BaseHandle::write_json(int, JSON::Writer&) const	call site: 05080
11	166	qpdf::Tokenizer::inBeforeToken(char)	call site: 00166	__cxa_allocate_exception
11	5319	(anonymous namespace)::JSONParser::getToken()	call site: 05319	__cxa_allocate_exception
11	5332	(anonymous namespace)::JSONParser::getToken()	call site: 05332	__cxa_allocate_exception
10	909	qpdf::Stream::Stream(std::__1::shared_ptr const&)	call site: 00909	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

1440

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: 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	2368	75.8%
gold	[1:9]	25	0.80%
yellow	[10:29]	51	1.63%
greenyellow	[30:49]	11	0.35%
lawngreen	50+	668	21.3%
All colors	3123	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
222	2666	std::__1::shared_ptr QPDFObject::create (bool&)	call site: 02666	_ZN4qpdf7IntegerC2ITkNSt3__18integralEmEET_
200	2062	QUtil::hex_decode(std::__1::basic_string , std::__1::allocator > const&)	call site: 02062	__cxa_allocate_exception
180	1653	std::__1::shared_ptr QPDFObject::create , std::__1::allocator > >(std::__1::basic_string , std::__1::allocator >&&)	call site: 01653	__cxa_allocate_exception
162	1899	QPDF::EncryptionParameters::initialize(QPDF&)	call site: 01899	__cxa_allocate_exception
97	2428	QPDFObjectHandle::getObjectID() const	call site: 02428	__cxa_allocate_exception
91	1370	QPDFObjectHandle::getIntValueAsInt() const	call site: 01370	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralExEEv
84	1470	QPDFObjectHandle::getName() const	call site: 01470	__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
60	2271	QPDF::Doc::Objects::readTrailer()	call site: 02271	_ZNK4qpdf7IntegercvT_ITkNSt3__18integralEjEEv
44	703	QPDFParser::parseRemainder(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: 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	973	20.5%
gold	[1:9]	127	2.68%
yellow	[10:29]	95	2.00%
greenyellow	[30:49]	67	1.41%
lawngreen	50+	3470	73.3%
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
87	4624	qpdf::impl::Writer::write()	call site: 04624	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
39	4401	qpdf::impl::Writer::writeLinearized()	call site: 04401	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
28	2967	ObjTable ::large_element(unsigned long)	call site: 02967	__cxa_allocate_exception
25	2389	qpdf::BaseHandle::copy(bool) const	call site: 02389	__cxa_allocate_exception
22	4181	qpdf::impl::Writer::unparseObject(QPDFObjectHandle, unsigned long, int, unsigned long, bool)	call site: 04181
18	3429	qpdf::impl::Writer::writeLinearized()	call site: 03429	fopen
17	4111	qpdf::BaseHandle::unparse() const	call site: 04111	__cxa_allocate_exception
16	2740	QPDF::Doc::Objects::parse(char const*)	call site: 02740	__cxa_begin_catch
16	2905	qpdf::impl::Writer::doWriteSetup()	call site: 02905
15	1242	QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const	call site: 01242	__cxa_allocate_exception
15	3681	deflate	call site: 03681	crc32
13	2998	qpdf::BaseDictionary::crbegin()	call site: 02998

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	1414	29.8%
gold	[1:9]	109	2.30%
yellow	[10:29]	92	1.94%
greenyellow	[30:49]	57	1.20%
lawngreen	50+	3059	64.6%
All colors	4731	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	3149	qpdf::impl::Writer::write()	call site: 03149	__assert_fail
120	4398	qpdf::impl::Writer::writeObjectStream(QPDFObjectHandle)	call site: 04398	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralEiEERS1_T_
81	3670	Pl_Flate::checkError(char const*, int)	call site: 03670	deflate
49	4630	qpdf::impl::Writer::writeStandard()	call site: 04630
41	2849	qpdf::impl::Writer::generateID(bool)	call site: 02849
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_
25	2391	qpdf::BaseHandle::copy(bool) const	call site: 02391	__cxa_allocate_exception
23	3426	(anonymous namespace)::Pl_stack::popper()	call site: 03426	fopen
23	3475	qpdf::impl::Writer::openObject(int)	call site: 03475	_ZN4qpdf4impl6Writer5writeITkNSt3__18integralExEERS1_T_
23	3629	unsigned int QIntC::to_uint (unsigned long const&)	call site: 03629	deflateInit_

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