High level conclusions

Fuzzers reach 57.12% of cyclomatic complexity.

Fuzzers reach 48.38% of all functions.

Fuzzer future_qpdf_fuzzer is blocked:

The runtime code coverage of future_qpdf_fuzzer covers 0.850% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer future_qpdf_page_fuzzer is blocked:

The runtime code coverage of future_qpdf_page_fuzzer covers 0.754% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer qpdf_lin_fuzzer is blocked:

The runtime code coverage of qpdf_lin_fuzzer covers 0.849% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer qpdf_crypt_fuzzer is blocked:

The runtime code coverage of qpdf_crypt_fuzzer covers 0.839% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer qpdf_fuzzer is blocked:

The runtime code coverage of qpdf_fuzzer covers 0.850% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer qpdf_page_fuzzer is blocked:

The runtime code coverage of qpdf_page_fuzzer covers 0.754% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer json_fuzzer is blocked:

The runtime code coverage of json_fuzzer covers 1.082% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer future_json_fuzzer is blocked:

The runtime code coverage of future_json_fuzzer covers 1.082% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer qpdf_outlines_fuzzer is blocked:

The runtime code coverage of qpdf_outlines_fuzzer covers 1.002% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer future_qpdf_outlines_fuzzer is blocked:

The runtime code coverage of future_qpdf_outlines_fuzzer covers 1.002% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer future_dct_fuzzer is blocked:

The runtime code coverage of future_dct_fuzzer covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer flate_fuzzer is blocked:

The runtime code coverage of flate_fuzzer covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer dct_fuzzer is blocked:

The runtime code coverage of dct_fuzzer covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer future_flate_fuzzer is blocked:

The runtime code coverage of future_flate_fuzzer covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Reachability and coverage overview

Functions statically reachable by fuzzers

1471 / 3040

Cyclomatic complexity statically reachable by fuzzers

19512 / 34159

Runtime code coverage of functions

1505 / 3040

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_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	49	57.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	36	42.3%
All colors	85	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
10	10	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::out_of_range::out_of_range[abi:ne180100](char const*)', '__cxa_free_exception']	10	10	read_bits(unsignedcharconst*&,unsignedlong&,unsignedlong&,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/qpdf/bits_functions.hh:34
10	10	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::out_of_range::out_of_range[abi:ne180100](char const*)', '__cxa_free_exception']	10	10	write_bits(unsignedchar&,unsignedlong&,unsignedlonglong,unsignedlong,Pipeline*)	call site: 00000	/src/qpdf/libqpdf/qpdf/bits_functions.hh:89
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', '__cxa_free_exception', 'std::runtime_error::runtime_error(char const*)']	8	8	BitStream::reset()	call site: 00000	/src/qpdf/libqpdf/BitStream.cc:21
0	0	None	32	34	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:28
0	0	None	8	10	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:31
0	0	None	8	10	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:34
0	0	None	8	10	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:38
0	0	None	0	86	Pl_TIFFPredictor::processRow()	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:85
0	0	None	0	2	Pl_TIFFPredictor::processRow()	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:107

Runtime coverage analysis

Covered functions

28

Functions that are reachable but not covered

28

Reachable functions

79

Percentage of reachable functions covered

64.56%

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/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/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: 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	49	57.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	36	42.3%
All colors	85	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
10	10	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::out_of_range::out_of_range[abi:ne180100](char const*)', '__cxa_free_exception']	10	10	read_bits(unsignedcharconst*&,unsignedlong&,unsignedlong&,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/qpdf/bits_functions.hh:34
10	10	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::out_of_range::out_of_range[abi:ne180100](char const*)', '__cxa_free_exception']	10	10	write_bits(unsignedchar&,unsignedlong&,unsignedlonglong,unsignedlong,Pipeline*)	call site: 00000	/src/qpdf/libqpdf/qpdf/bits_functions.hh:89
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', '__cxa_free_exception', 'std::runtime_error::runtime_error(char const*)']	8	8	BitStream::reset()	call site: 00000	/src/qpdf/libqpdf/BitStream.cc:21
0	0	None	32	34	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:28
0	0	None	8	10	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:31
0	0	None	8	10	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:34
0	0	None	8	10	Pl_TIFFPredictor::Pl_TIFFPredictor(charconst*,Pipeline*,Pl_TIFFPredictor::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:38
0	0	None	0	86	Pl_TIFFPredictor::processRow()	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:85
0	0	None	0	2	Pl_TIFFPredictor::processRow()	call site: 00000	/src/qpdf/libqpdf/Pl_TIFFPredictor.cc:107

Runtime coverage analysis

Covered functions

28

Functions that are reachable but not covered

28

Reachable functions

79

Percentage of reachable functions covered

64.56%

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/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/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: 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	6	16.6%
gold	[1:9]	1	2.77%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	29	80.5%
All colors	36	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
0	0	None	0	0	Pl_ASCIIHexDecoder::Pl_ASCIIHexDecoder(charconst*,Pipeline*)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCIIHexDecoder.cc:12
0	0	None	0	0	Pl_ASCIIHexDecoder::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCIIHexDecoder.cc:20

Runtime coverage analysis

Covered functions

16

Functions that are reachable but not covered

13

Reachable functions

40

Percentage of reachable functions covered

67.5%

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/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCIIHexDecoder.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	226	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	226	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	0	EP	call site: 00000	deflate

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

130

Reachable functions

130

Percentage of reachable functions covered

0.0%

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/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	10
/src/zlib/inftrees.c	1
/src/zlib/inffast.c	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	325	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	325	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
324	0	EP	call site: 00000	jpeg_start_decompress

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

231

Reachable functions

231

Percentage of reachable functions covered

0.0%

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/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_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	31	36.0%
gold	[1:9]	5	5.81%
yellow	[10:29]	5	5.81%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	45	52.3%
All colors	86	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::runtime_error::runtime_error(char const*)', '__cxa_free_exception']	8	8	Pl_LZWDecoder::getFirstChar(unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_LZWDecoder.cc:86
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::runtime_error::runtime_error(char const*)', '__cxa_free_exception']	8	8	Pl_LZWDecoder::addToTable(unsignedchar)	call site: 00000	/src/qpdf/libqpdf/Pl_LZWDecoder.cc:111
0	0	None	0	0	Buffer::Members::Members(unsignedlong,unsignedchar*,bool)	call site: 00000	/src/qpdf/libqpdf/Buffer.cc:30
0	0	None	0	0	Pl_LZWDecoder::Pl_LZWDecoder(charconst*,Pipeline*,bool)	call site: 00000	/src/qpdf/libqpdf/Pl_LZWDecoder.cc:13

Runtime coverage analysis

Covered functions

29

Functions that are reachable but not covered

23

Reachable functions

72

Percentage of reachable functions covered

68.06%

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/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	5
/src/qpdf/libqpdf/qpdf/Pl_LZWDecoder.hh	1

Fuzzer: future_runlength_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	27	44.2%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	8.19%
greenyellow	[30:49]	5	8.19%
lawngreen	50+	24	39.3%
All colors	61	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
29	29	1 : View List ['Pl_RunLength::encode(unsigned char const*, unsigned long)']	29	29	Pl_RunLength::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:51
20	20	1 : View List ['Pl_RunLength::flush_encode()']	20	24	Pl_RunLength::finish()	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:166
0	0	None	0	0	Pl_RunLength::Pl_RunLength(charconst*,Pipeline*,Pl_RunLength::action_e)	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:32

Runtime coverage analysis

Covered functions

21

Functions that are reachable but not covered

20

Reachable functions

53

Percentage of reachable functions covered

62.26%

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/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1

Fuzzer: runlength_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	27	44.2%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	8.19%
greenyellow	[30:49]	5	8.19%
lawngreen	50+	24	39.3%
All colors	61	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
29	29	1 : View List ['Pl_RunLength::encode(unsigned char const*, unsigned long)']	29	29	Pl_RunLength::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:51
20	20	1 : View List ['Pl_RunLength::flush_encode()']	20	24	Pl_RunLength::finish()	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:166
0	0	None	0	0	Pl_RunLength::Pl_RunLength(charconst*,Pipeline*,Pl_RunLength::action_e)	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:32

Runtime coverage analysis

Covered functions

21

Functions that are reachable but not covered

20

Reachable functions

53

Percentage of reachable functions covered

62.26%

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/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.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	6	16.6%
gold	[1:9]	1	2.77%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	29	80.5%
All colors	36	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
0	0	None	0	0	Pl_ASCIIHexDecoder::Pl_ASCIIHexDecoder(charconst*,Pipeline*)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCIIHexDecoder.cc:12
0	0	None	0	0	Pl_ASCIIHexDecoder::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCIIHexDecoder.cc:20

Runtime coverage analysis

Covered functions

16

Functions that are reachable but not covered

13

Reachable functions

40

Percentage of reachable functions covered

67.5%

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/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCIIHexDecoder.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	6	12.5%
gold	[1:9]	6	12.5%
yellow	[10:29]	5	10.4%
greenyellow	[30:49]	5	10.4%
lawngreen	50+	26	54.1%
All colors	48	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
0	0	None	0	0	Pl_ASCII85Decoder::Pl_ASCII85Decoder(charconst*,Pipeline*)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc:10
0	0	None	0	0	Pl_ASCII85Decoder::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc:18
0	0	None	0	0	Pl_ASCII85Decoder::finish()	call site: 00000	/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc:107

Runtime coverage analysis

Covered functions

16

Functions that are reachable but not covered

14

Reachable functions

41

Percentage of reachable functions covered

65.85%

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/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/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCII85Decoder.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	226	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	226	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	0	EP	call site: 00000	deflate

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

130

Reachable functions

130

Percentage of reachable functions covered

0.0%

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/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	10
/src/zlib/inftrees.c	1
/src/zlib/inffast.c	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	6	12.5%
gold	[1:9]	6	12.5%
yellow	[10:29]	5	10.4%
greenyellow	[30:49]	7	14.5%
lawngreen	50+	24	50.0%
All colors	48	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
0	0	None	0	0	Pl_ASCII85Decoder::Pl_ASCII85Decoder(charconst*,Pipeline*)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc:10
0	0	None	0	0	Pl_ASCII85Decoder::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc:18
0	0	None	0	0	Pl_ASCII85Decoder::finish()	call site: 00000	/src/qpdf/libqpdf/Pl_ASCII85Decoder.cc:107

Runtime coverage analysis

Covered functions

16

Functions that are reachable but not covered

14

Reachable functions

41

Percentage of reachable functions covered

65.85%

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/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/include/qpdf/Pipeline.hh	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Pl_ASCII85Decoder.hh	1

Fuzzer: future_pngpredictor_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	27	43.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	35	56.4%
All colors	62	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::runtime_error::runtime_error(char const*)', '__cxa_free_exception']	8	10	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:47
6	6	1 : View List ['Pl_PNGFilter::encodeRow()']	6	6	Pl_PNGFilter::processRow()	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:98
0	0	None	32	38	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:31
0	0	None	8	10	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:34
0	0	None	8	10	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:44

Runtime coverage analysis

Covered functions

25

Functions that are reachable but not covered

12

Reachable functions

57

Percentage of reachable functions covered

78.95%

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/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	31	36.0%
gold	[1:9]	5	5.81%
yellow	[10:29]	5	5.81%
greenyellow	[30:49]	5	5.81%
lawngreen	50+	40	46.5%
All colors	86	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::runtime_error::runtime_error(char const*)', '__cxa_free_exception']	8	8	Pl_LZWDecoder::getFirstChar(unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_LZWDecoder.cc:86
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::runtime_error::runtime_error(char const*)', '__cxa_free_exception']	8	8	Pl_LZWDecoder::addToTable(unsignedchar)	call site: 00000	/src/qpdf/libqpdf/Pl_LZWDecoder.cc:111
0	0	None	0	0	Buffer::Members::Members(unsignedlong,unsignedchar*,bool)	call site: 00000	/src/qpdf/libqpdf/Buffer.cc:30
0	0	None	0	0	Pl_LZWDecoder::Pl_LZWDecoder(charconst*,Pipeline*,bool)	call site: 00000	/src/qpdf/libqpdf/Pl_LZWDecoder.cc:13

Runtime coverage analysis

Covered functions

29

Functions that are reachable but not covered

23

Reachable functions

72

Percentage of reachable functions covered

68.06%

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/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	5
/src/qpdf/libqpdf/qpdf/Pl_LZWDecoder.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	325	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	325	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
324	0	EP	call site: 00000	jpeg_start_decompress

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

231

Reachable functions

231

Percentage of reachable functions covered

0.0%

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/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_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	3438	99.8%
gold	[1:9]	3	0.08%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.02%
All colors	3442	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
2277	1164	QPDFObjectHandle::newNull()	call site: 01164	__dynamic_cast
796	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1482

Reachable functions

1497

Percentage of reachable functions covered

1.0%

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	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/libqpdf/QPDF.cc	18
/src/qpdf/libqpdf/QPDF_objects.cc	45
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	11
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	3
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	26
/src/qpdf/include/qpdf/QPDF.hh	10
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	18
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	57
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	21
/src/qpdf/libqpdf/QPDFObjectHandle.cc	69
/src/qpdf/libqpdf/QPDFXRefEntry.cc	3
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	41
/src/qpdf/libqpdf/MD5.cc	4
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	2
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	3
/src/qpdf/include/qpdf/QPDFDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFOutlineDocumentHelper.hh	3
/src/qpdf/include/qpdf/QPDFOutlineObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc	5
/src/qpdf/include/qpdf/QPDFObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFObjectHelper.cc	1
/src/qpdf/libqpdf/QPDFDocumentHelper.cc	1
/src/qpdf/libqpdf/QPDF_String.cc	2
/src/qpdf/libqpdf/QPDFNameTreeObjectHelper.cc	7
/src/qpdf/libqpdf/NNTree.cc	28
/src/qpdf/libqpdf/qpdf/NNTree.hh	4
/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	27	43.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	35	56.4%
All colors	62	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
8	8	4 : View List ['__cxa_allocate_exception', '__cxa_throw', 'std::runtime_error::runtime_error(char const*)', '__cxa_free_exception']	8	10	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:47
6	6	1 : View List ['Pl_PNGFilter::encodeRow()']	6	6	Pl_PNGFilter::processRow()	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:98
0	0	None	32	38	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:31
0	0	None	8	10	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:34
0	0	None	8	10	Pl_PNGFilter::Pl_PNGFilter(charconst*,Pipeline*,Pl_PNGFilter::action_e,unsignedint,unsignedint,unsignedint)	call site: 00000	/src/qpdf/libqpdf/Pl_PNGFilter.cc:44

Runtime coverage analysis

Covered functions

25

Functions that are reachable but not covered

12

Reachable functions

57

Percentage of reachable functions covered

78.95%

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/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: 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	3438	99.8%
gold	[1:9]	3	0.08%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.02%
All colors	3442	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
2277	1164	QPDFObjectHandle::newNull()	call site: 01164	__dynamic_cast
796	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1482

Reachable functions

1497

Percentage of reachable functions covered

1.0%

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	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/libqpdf/QPDF.cc	18
/src/qpdf/libqpdf/QPDF_objects.cc	45
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	11
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	3
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	26
/src/qpdf/include/qpdf/QPDF.hh	10
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	18
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	57
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	21
/src/qpdf/libqpdf/QPDFObjectHandle.cc	69
/src/qpdf/libqpdf/QPDFXRefEntry.cc	3
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	41
/src/qpdf/libqpdf/MD5.cc	4
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	2
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	3
/src/qpdf/include/qpdf/QPDFDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFOutlineDocumentHelper.hh	3
/src/qpdf/include/qpdf/QPDFOutlineObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc	5
/src/qpdf/include/qpdf/QPDFObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFObjectHelper.cc	1
/src/qpdf/libqpdf/QPDFDocumentHelper.cc	1
/src/qpdf/libqpdf/QPDF_String.cc	2
/src/qpdf/libqpdf/QPDFNameTreeObjectHelper.cc	7
/src/qpdf/libqpdf/NNTree.cc	28
/src/qpdf/libqpdf/qpdf/NNTree.hh	4
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.hh	1

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	3126	99.8%
gold	[1:9]	3	0.09%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.03%
All colors	3130	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
1636	1493	QPDFObjectHandle::newNull()	call site: 01493	__dynamic_cast
791	700	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00700	__cxa_allocate_exception
699	0	EP	call site: 00000	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1371

Reachable functions

1386

Percentage of reachable functions covered

1.08%

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/BufferInputSource.cc	4
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/Buffer.cc	9
/src/qpdf/include/qpdf/QIntC.hh	43
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Util.hh	3
/src/qpdf/libqpdf/QUtil.cc	13
/src/qpdf/include/qpdf/JSON.hh	7
/src/qpdf/libqpdf/QPDF.cc	23
/src/qpdf/libqpdf/QPDFTokenizer.cc	34
/src/qpdf/libqpdf/QPDF_json.cc	5
/src/qpdf/libqpdf/QPDF_objects.cc	45
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	11
/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/libqpdf/qpdf/InputSource_private.hh	8
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/include/qpdf/QPDF.hh	10
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	56
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	48
/src/qpdf/libqpdf/QPDF_Array.cc	12
/src/qpdf/libqpdf/QPDFObjectHandle.cc	67
/src/qpdf/libqpdf/QPDFXRefEntry.cc	3
/src/qpdf/libqpdf/QPDF_Dictionary.cc	12
/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/Pl_Buffer.cc	5
/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	41
/src/qpdf/libqpdf/MD5.cc	4
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	2

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	3126	99.8%
gold	[1:9]	3	0.09%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.03%
All colors	3130	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
1636	1493	QPDFObjectHandle::newNull()	call site: 01493	__dynamic_cast
791	700	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00700	__cxa_allocate_exception
699	0	EP	call site: 00000	__cxa_allocate_exception

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1371

Reachable functions

1386

Percentage of reachable functions covered

1.08%

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/BufferInputSource.cc	4
/src/qpdf/include/qpdf/InputSource.hh	3
/src/qpdf/libqpdf/Buffer.cc	9
/src/qpdf/include/qpdf/QIntC.hh	43
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/include/qpdf/QTC.hh	1
/src/qpdf/libqpdf/qpdf/Util.hh	3
/src/qpdf/libqpdf/QUtil.cc	13
/src/qpdf/include/qpdf/JSON.hh	7
/src/qpdf/libqpdf/QPDF.cc	23
/src/qpdf/libqpdf/QPDFTokenizer.cc	34
/src/qpdf/libqpdf/QPDF_json.cc	5
/src/qpdf/libqpdf/QPDF_objects.cc	45
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	11
/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/libqpdf/qpdf/InputSource_private.hh	8
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/include/qpdf/QPDF.hh	10
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	56
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	48
/src/qpdf/libqpdf/QPDF_Array.cc	12
/src/qpdf/libqpdf/QPDFObjectHandle.cc	67
/src/qpdf/libqpdf/QPDFXRefEntry.cc	3
/src/qpdf/libqpdf/QPDF_Dictionary.cc	12
/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/Pl_Buffer.cc	5
/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	41
/src/qpdf/libqpdf/MD5.cc	4
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	2

Fuzzer: qpdf_page_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	5197	99.9%
gold	[1:9]	3	0.05%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.01%
All colors	5201	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
4037	1163	QPDFObjectHandle::newNull()	call site: 01163	__dynamic_cast
795	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1972

Reachable functions

1987

Percentage of reachable functions covered

0.75%

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_page_fuzzer.cc	8
/src/qpdf/libqpdf/Buffer.cc	9
/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	6
/src/qpdf/include/qpdf/InputSource.hh	4
/src/qpdf/include/qpdf/QIntC.hh	54
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/libqpdf/QPDF.cc	20
/src/qpdf/libqpdf/QPDF_objects.cc	46
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	11
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	4
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	29
/src/qpdf/include/qpdf/QPDF.hh	10
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	30
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	24
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	62
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	24
/src/qpdf/libqpdf/QPDFObjectHandle.cc	112
/src/qpdf/libqpdf/QPDFXRefEntry.cc	3
/src/qpdf/libqpdf/QPDF_Dictionary.cc	14
/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	19
/src/qpdf/libqpdf/Pl_Buffer.cc	6
/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	41
/src/qpdf/libqpdf/MD5.cc	4
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	2
/src/qpdf/libqpdf/QPDFPageDocumentHelper.cc	4
/src/qpdf/include/qpdf/QPDFDocumentHelper.hh	1
/src/qpdf/libqpdf/QPDFPageLabelDocumentHelper.cc	3
/src/qpdf/include/qpdf/QPDFPageLabelDocumentHelper.hh	2
/src/qpdf/libqpdf/QPDFDocumentHelper.cc	1
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	4
/src/qpdf/include/qpdf/QPDFOutlineDocumentHelper.hh	3
/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	8
/src/qpdf/include/qpdf/QPDFAcroFormDocumentHelper.hh	2
/src/qpdf/libqpdf/QPDFFormFieldObjectHelper.cc	30
/src/qpdf/include/qpdf/QPDFFormFieldObjectHelper.hh	2
/src/qpdf/libqpdf/QPDF_String.cc	6
/src/qpdf/include/qpdf/QPDFPageDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFPageObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFPageObjectHelper.cc	9
/src/qpdf/include/qpdf/QPDFAnnotationObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFAnnotationObjectHelper.cc	7
/src/qpdf/libqpdf/Pl_QPDFTokenizer.cc	3
/src/qpdf/libqpdf/QPDFMatrix.cc	11
/src/qpdf/libqpdf/QPDFNumberTreeObjectHelper.cc	7
/src/qpdf/libqpdf/NNTree.cc	28
/src/qpdf/libqpdf/qpdf/NNTree.hh	4
/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/libqpdf/QPDFNameTreeObjectHelper.cc	7
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.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	4492	99.9%
gold	[1:9]	3	0.06%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.02%
All colors	4496	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
3331	1164	QPDFObjectHandle::newNull()	call site: 01164	__dynamic_cast
796	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1748

Reachable functions

1763

Percentage of reachable functions covered

0.85%

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_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	43
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	62
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.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	4536	99.9%
gold	[1:9]	3	0.06%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.02%
All colors	4540	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
3376	1163	QPDFObjectHandle::newNull()	call site: 01163	__dynamic_cast
795	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1772

Reachable functions

1787

Percentage of reachable functions covered

0.84%

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/qpdf/fuzz/qpdf_crypt_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	52
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	65
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.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	1783	39.2%
gold	[1:9]	145	3.19%
yellow	[10:29]	97	2.13%
greenyellow	[30:49]	28	0.61%
lawngreen	50+	2489	54.7%
All colors	4542	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
9657	9657	1 : View List ['QPDFWriter::writeLinearized()']	9659	9701	QPDFWriter::write()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2265
8194	8194	1 : View List ['QPDFWriter::writeObjectStream(QPDFObjectHandle)']	8202	8206	QPDFWriter::writeObject(QPDFObjectHandle,int)	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:1799
7587	7587	1 : View List ['QPDFWriter::copyEncryptionParameters(QPDF&)']	22442	44727	QPDFWriter::doWriteSetup()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2159
7307	7307	1 : View List ['QPDFWriter::enqueueObjectsPCLm()']	7323	32321	QPDFWriter::writeStandard()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:3049
7150	7152	9 : View List ['std::__1::__wrap_iter ::operator++[abi:ne180100]()', 'QPDF::getAllObjects()', 'std::__1::__wrap_iter ::operator*[abi:ne180100]() const', 'bool std::__1::operator!=[abi:ne180100] (std::__1::__wrap_iter const&, std::__1::__wrap_iter const&)', 'QTC::TC(char const*, char const*, int)', 'std::__1::vector >::~vector[abi:ne180100]()', 'std::__1::vector >::begin[abi:ne180100]()', 'std::__1::shared_ptr ::operator->[abi:ne180100]() const', 'std::__1::vector >::end[abi:ne180100]()']	7194	71518	QPDFWriter::enqueueObjectsStandard()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2951
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	21407	QPDFObjectHandle::as_array(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:445
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	7139	QPDFObjectHandle::as_dictionary(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:462
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	7137	QPDFObjectHandle::as_stream(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:475
252	474	6 : View List ['inflate_table', 'adler32', 'fixedtables', 'inflate_fast', 'crc32', 'updatewindow']	252	474	inflate	call site: 00000	/src/zlib/inflate.c:817
60	60	1 : View List ['do_sarray_io']	60	62	access_virt_sarray	call site: 00000	/src/libjpeg-turbo/src/jmemmgr.c:941
36	50074	28 : View List ['std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> >::operator*[abi:ne180100]() const', 'QUtil::get_current_time()', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100]()', 'std::__1::to_string(long)', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc', '__cxa_allocate_exception', 'qpdf::Dictionary::~Dictionary()', 'MD5::encodeString(char const*)', '__cxa_throw', 'qpdf::BaseDictionary::end()', 'std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> >::operator++[abi:ne180100]()', 'MD5::digest(unsigned char*)', 'MD5::~MD5()', 'QPDFObjectHandle::isString() const', 'QPDFObjectHandle::as_dictionary(qpdf::typed) const', 'qpdf::BaseDictionary::begin()', 'std::__1::basic_string , std::__1::allocator >::c_str[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](std::__1::basic_string , std::__1::allocator > const&)', 'QTC::TC(char const*, char const*, int)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', '__cxa_free_exception', 'std::__1::operator!=[abi:ne180100](std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> > const&, std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> > const&)', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100](char const*, unsigned long)', 'std::runtime_error::runtime_error(char const*)', 'MD5::MD5()', 'QPDFObjectHandle::getStringValue() const']	52	57242	QPDFWriter::generateID()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:1870
34	28594	16 : View List ['std::runtime_error::runtime_error(std::__1::basic_string , std::__1::allocator > const&)', 'QPDFObjectHandle::getIntValue() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, char const*)', 'QPDFObjectHandle::replaceKey(std::__1::basic_string , std::__1::allocator > const&, QPDFObjectHandle const&)', 'QPDFObjectHandle::newInteger(long long)', 'QPDFObjGen::unparse(char) const', 'QPDFObjectHandle::StreamDataProvider::supportsRetry()', 'std::__1::to_string(long long)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'Pl_Count::~Pl_Count()', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::shared_ptr ::operator->[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(char const*, std::__1::basic_string , std::__1::allocator >&&)', 'Pl_Count::getCount() const', 'Pl_Count::Pl_Count(char const*, Pipeline*)']	58	29223	qpdf::Stream::pipeStreamData(Pipeline*,bool*,int,qpdf_stream_decode_level_e,bool,bool)	call site: 00000	/src/qpdf/libqpdf/QPDF_Stream.cc:531

Runtime coverage analysis

Covered functions

1129

Functions that are reachable but not covered

424

Reachable functions

1787

Percentage of reachable functions covered

76.27%

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/qpdf/fuzz/qpdf_crypt_insecure_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	52
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	65
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.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	1194	26.2%
gold	[1:9]	139	3.06%
yellow	[10:29]	74	1.62%
greenyellow	[30:49]	35	0.77%
lawngreen	50+	3098	68.2%
All colors	4540	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
7587	7587	1 : View List ['QPDFWriter::copyEncryptionParameters(QPDF&)']	15053	44727	QPDFWriter::doWriteSetup()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2159
252	474	6 : View List ['inflate_table', 'adler32', 'fixedtables', 'inflate_fast', 'crc32', 'updatewindow']	252	474	inflate	call site: 00000	/src/zlib/inflate.c:817
47	47	1 : View List ['QPDFWriter::computeDeterministicIDData()']	63	7685	QPDFWriter::writeTrailer(QPDFWriter::trailer_e,int,bool,longlong,int)	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:1224
36	50074	28 : View List ['std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> >::operator*[abi:ne180100]() const', 'QUtil::get_current_time()', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100]()', 'std::__1::to_string(long)', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc', '__cxa_allocate_exception', 'qpdf::Dictionary::~Dictionary()', 'MD5::encodeString(char const*)', '__cxa_throw', 'qpdf::BaseDictionary::end()', 'std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> >::operator++[abi:ne180100]()', 'MD5::digest(unsigned char*)', 'MD5::~MD5()', 'QPDFObjectHandle::isString() const', 'QPDFObjectHandle::as_dictionary(qpdf::typed) const', 'qpdf::BaseDictionary::begin()', 'std::__1::basic_string , std::__1::allocator >::c_str[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](std::__1::basic_string , std::__1::allocator > const&)', 'QTC::TC(char const*, char const*, int)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', '__cxa_free_exception', 'std::__1::operator!=[abi:ne180100](std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> > const&, std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> > const&)', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100](char const*, unsigned long)', 'std::runtime_error::runtime_error(char const*)', 'MD5::MD5()', 'QPDFObjectHandle::getStringValue() const']	52	57242	QPDFWriter::generateID()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:1870
34	28594	16 : View List ['std::runtime_error::runtime_error(std::__1::basic_string , std::__1::allocator > const&)', 'QPDFObjectHandle::getIntValue() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, char const*)', 'QPDFObjectHandle::replaceKey(std::__1::basic_string , std::__1::allocator > const&, QPDFObjectHandle const&)', 'QPDFObjectHandle::newInteger(long long)', 'QPDFObjGen::unparse(char) const', 'QPDFObjectHandle::StreamDataProvider::supportsRetry()', 'std::__1::to_string(long long)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'Pl_Count::~Pl_Count()', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::shared_ptr ::operator->[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(char const*, std::__1::basic_string , std::__1::allocator >&&)', 'Pl_Count::getCount() const', 'Pl_Count::Pl_Count(char const*, Pipeline*)']	58	29223	qpdf::Stream::pipeStreamData(Pipeline*,bool*,int,qpdf_stream_decode_level_e,bool,bool)	call site: 00000	/src/qpdf/libqpdf/QPDF_Stream.cc:531
29	29	1 : View List ['Pl_RunLength::encode(unsigned char const*, unsigned long)']	29	29	Pl_RunLength::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:51
28	28	1 : View List ['do_barray_io']	28	30	access_virt_barray	call site: 00000	/src/libjpeg-turbo/src/jmemmgr.c:1025
21	21	1 : View List ['crc32']	579	630	deflate	call site: 00000	/src/zlib/deflate.c:1160
21	21	1 : View List ['crc32']	21	21	read_buf	call site: 00000	/src/zlib/deflate.c:227
20	20	1 : View List ['Pl_RunLength::flush_encode()']	20	24	Pl_RunLength::finish()	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:166
20	20	4 : View List ['__cxa_allocate_exception', 'QPDFExc::QPDFExc(QPDFExc const&)', '__cxa_throw', '__cxa_free_exception']	20	20	QPDFParser::warn(QPDFExcconst&)const	call site: 00000	/src/qpdf/libqpdf/QPDFParser.cc:649
14	14	1 : View List ['sha384_short']	14	23	sph_sha384	call site: 00000	/src/qpdf/libqpdf/sph/md_helper.c:191

Runtime coverage analysis

Covered functions

1213

Functions that are reachable but not covered

281

Reachable functions

1787

Percentage of reachable functions covered

84.28%

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	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	52
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	65
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: future_qpdf_lin_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1251	27.8%
gold	[1:9]	129	2.86%
yellow	[10:29]	80	1.77%
greenyellow	[30:49]	87	1.93%
lawngreen	50+	2949	65.5%
All colors	4496	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	21407	QPDFObjectHandle::as_array(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:445
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	7139	QPDFObjectHandle::as_dictionary(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:462
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	7137	QPDFObjectHandle::as_stream(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:475
252	474	6 : View List ['inflate_table', 'adler32', 'fixedtables', 'inflate_fast', 'crc32', 'updatewindow']	252	474	inflate	call site: 00000	/src/zlib/inflate.c:817
88	164147	11 : View List ['QPDFObjectHandle::isDictionary() const', 'QPDFObjectHandle::isNameAndEquals(std::__1::basic_string , std::__1::allocator > const&) const', 'QPDFObjectHandle::getArrayItem(int) const', 'std::__1::basic_string , std::__1::allocator >::operator=[abi:ne180100](char const*)', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', 'QPDFObjectHandle::isArray() const', 'QPDF::interpretCF(std::__1::shared_ptr , QPDFObjectHandle)', 'QPDFObjectHandle::isName() const', 'QPDFObjectHandle::getArrayNItems() const', 'QPDFObjectHandle::isDictionaryOfType(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&) const', 'QPDFObjectHandle::~QPDFObjectHandle()']	88	164602	QPDF::decryptStream(std::__1::shared_ptr ,std::__1::shared_ptr ,QPDF&,Pipeline*&,QPDFObjGen,QPDFObjectHandle&,bool,std::__1::unique_ptr >&)	call site: 00000	/src/qpdf/libqpdf/QPDF_encryption.cc:1068
60	60	1 : View List ['do_sarray_io']	60	62	access_virt_sarray	call site: 00000	/src/libjpeg-turbo/src/jmemmgr.c:941
34	28594	16 : View List ['std::runtime_error::runtime_error(std::__1::basic_string , std::__1::allocator > const&)', 'QPDFObjectHandle::getIntValue() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, char const*)', 'QPDFObjectHandle::replaceKey(std::__1::basic_string , std::__1::allocator > const&, QPDFObjectHandle const&)', 'QPDFObjectHandle::newInteger(long long)', 'QPDFObjGen::unparse(char) const', 'QPDFObjectHandle::StreamDataProvider::supportsRetry()', 'std::__1::to_string(long long)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'Pl_Count::~Pl_Count()', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::shared_ptr ::operator->[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(char const*, std::__1::basic_string , std::__1::allocator >&&)', 'Pl_Count::getCount() const', 'Pl_Count::Pl_Count(char const*, Pipeline*)']	58	29223	qpdf::Stream::pipeStreamData(Pipeline*,bool*,int,qpdf_stream_decode_level_e,bool,bool)	call site: 00000	/src/qpdf/libqpdf/QPDF_Stream.cc:531
29	29	1 : View List ['Pl_RunLength::encode(unsigned char const*, unsigned long)']	29	29	Pl_RunLength::write(unsignedcharconst*,unsignedlong)	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:51
28	28	1 : View List ['do_barray_io']	28	30	access_virt_barray	call site: 00000	/src/libjpeg-turbo/src/jmemmgr.c:1025
21	21	1 : View List ['crc32']	579	630	deflate	call site: 00000	/src/zlib/deflate.c:1160
21	21	1 : View List ['crc32']	21	21	read_buf	call site: 00000	/src/zlib/deflate.c:227
20	20	1 : View List ['Pl_RunLength::flush_encode()']	20	24	Pl_RunLength::finish()	call site: 00000	/src/qpdf/libqpdf/Pl_RunLength.cc:166

Runtime coverage analysis

Covered functions

1209

Functions that are reachable but not covered

275

Reachable functions

1765

Percentage of reachable functions covered

84.42%

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	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	43
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	63
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.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	1756	38.6%
gold	[1:9]	159	3.50%
yellow	[10:29]	85	1.87%
greenyellow	[30:49]	48	1.05%
lawngreen	50+	2494	54.9%
All colors	4542	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
9657	9657	1 : View List ['QPDFWriter::writeLinearized()']	9659	9701	QPDFWriter::write()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2265
8194	8194	1 : View List ['QPDFWriter::writeObjectStream(QPDFObjectHandle)']	8202	8206	QPDFWriter::writeObject(QPDFObjectHandle,int)	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:1799
7587	7587	1 : View List ['QPDFWriter::copyEncryptionParameters(QPDF&)']	22442	44727	QPDFWriter::doWriteSetup()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2159
7307	7307	1 : View List ['QPDFWriter::enqueueObjectsPCLm()']	7323	32321	QPDFWriter::writeStandard()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:3049
7150	7152	9 : View List ['std::__1::__wrap_iter ::operator++[abi:ne180100]()', 'QPDF::getAllObjects()', 'std::__1::__wrap_iter ::operator*[abi:ne180100]() const', 'bool std::__1::operator!=[abi:ne180100] (std::__1::__wrap_iter const&, std::__1::__wrap_iter const&)', 'QTC::TC(char const*, char const*, int)', 'std::__1::vector >::~vector[abi:ne180100]()', 'std::__1::vector >::begin[abi:ne180100]()', 'std::__1::shared_ptr ::operator->[abi:ne180100]() const', 'std::__1::vector >::end[abi:ne180100]()']	7194	71518	QPDFWriter::enqueueObjectsStandard()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:2951
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	21407	QPDFObjectHandle::as_array(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:445
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	7139	QPDFObjectHandle::as_dictionary(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:462
7133	7133	1 : View List ['QPDFObjectHandle::assertType(char const*, bool) const']	7133	7137	QPDFObjectHandle::as_stream(qpdf::typed)const	call site: 00000	/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh:475
252	474	6 : View List ['inflate_table', 'adler32', 'fixedtables', 'inflate_fast', 'crc32', 'updatewindow']	252	474	inflate	call site: 00000	/src/zlib/inflate.c:817
60	60	1 : View List ['do_sarray_io']	60	62	access_virt_sarray	call site: 00000	/src/libjpeg-turbo/src/jmemmgr.c:941
36	50074	28 : View List ['std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> >::operator*[abi:ne180100]() const', 'QUtil::get_current_time()', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100]()', 'std::__1::to_string(long)', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc', '__cxa_allocate_exception', 'qpdf::Dictionary::~Dictionary()', 'MD5::encodeString(char const*)', '__cxa_throw', 'qpdf::BaseDictionary::end()', 'std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> >::operator++[abi:ne180100]()', 'MD5::digest(unsigned char*)', 'MD5::~MD5()', 'QPDFObjectHandle::isString() const', 'QPDFObjectHandle::as_dictionary(qpdf::typed) const', 'qpdf::BaseDictionary::begin()', 'std::__1::basic_string , std::__1::allocator >::c_str[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](std::__1::basic_string , std::__1::allocator > const&)', 'QTC::TC(char const*, char const*, int)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', '__cxa_free_exception', 'std::__1::operator!=[abi:ne180100](std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> > const&, std::__1::__map_iterator , std::__1::allocator >, QPDFObjectHandle>, std::__1::__tree_node , std::__1::allocator >, QPDFObjectHandle>, void*>*, long> > const&)', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100](char const*, unsigned long)', 'std::runtime_error::runtime_error(char const*)', 'MD5::MD5()', 'QPDFObjectHandle::getStringValue() const']	52	57242	QPDFWriter::generateID()	call site: 00000	/src/qpdf/libqpdf/QPDFWriter.cc:1870
34	28594	16 : View List ['std::runtime_error::runtime_error(std::__1::basic_string , std::__1::allocator > const&)', 'QPDFObjectHandle::getIntValue() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, char const*)', 'QPDFObjectHandle::replaceKey(std::__1::basic_string , std::__1::allocator > const&, QPDFObjectHandle const&)', 'QPDFObjectHandle::newInteger(long long)', 'QPDFObjGen::unparse(char) const', 'QPDFObjectHandle::StreamDataProvider::supportsRetry()', 'std::__1::to_string(long long)', 'QPDFObjectHandle::hasKey(std::__1::basic_string , std::__1::allocator > const&) const', 'Pl_Count::~Pl_Count()', 'QPDFObjectHandle::getKey(std::__1::basic_string , std::__1::allocator > const&) const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::shared_ptr ::operator->[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(char const*, std::__1::basic_string , std::__1::allocator >&&)', 'Pl_Count::getCount() const', 'Pl_Count::Pl_Count(char const*, Pipeline*)']	58	29223	qpdf::Stream::pipeStreamData(Pipeline*,bool*,int,qpdf_stream_decode_level_e,bool,bool)	call site: 00000	/src/qpdf/libqpdf/QPDF_Stream.cc:531

Runtime coverage analysis

Covered functions

1133

Functions that are reachable but not covered

418

Reachable functions

1787

Percentage of reachable functions covered

76.61%

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	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	52
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	65
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.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	4492	99.9%
gold	[1:9]	3	0.06%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.02%
All colors	4496	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
3331	1164	QPDFObjectHandle::newNull()	call site: 01164	__dynamic_cast
796	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1750

Reachable functions

1765

Percentage of reachable functions covered

0.85%

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_lin_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	43
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	63
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1

Fuzzer: future_qpdf_page_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	5197	99.9%
gold	[1:9]	3	0.05%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.01%
All colors	5201	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
4037	1163	QPDFObjectHandle::newNull()	call site: 01163	__dynamic_cast
795	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1972

Reachable functions

1987

Percentage of reachable functions covered

0.75%

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_page_fuzzer.cc	8
/src/qpdf/libqpdf/Buffer.cc	9
/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	6
/src/qpdf/include/qpdf/InputSource.hh	4
/src/qpdf/include/qpdf/QIntC.hh	54
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	2
/src/qpdf/libqpdf/QPDF.cc	20
/src/qpdf/libqpdf/QPDF_objects.cc	46
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	11
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	4
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	29
/src/qpdf/include/qpdf/QPDF.hh	10
/src/qpdf/include/qpdf/QPDFObjGen.hh	11
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	30
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	24
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	62
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	24
/src/qpdf/libqpdf/QPDFObjectHandle.cc	112
/src/qpdf/libqpdf/QPDFXRefEntry.cc	3
/src/qpdf/libqpdf/QPDF_Dictionary.cc	14
/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	19
/src/qpdf/libqpdf/Pl_Buffer.cc	6
/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	41
/src/qpdf/libqpdf/MD5.cc	4
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	2
/src/qpdf/libqpdf/QPDFPageDocumentHelper.cc	4
/src/qpdf/include/qpdf/QPDFDocumentHelper.hh	1
/src/qpdf/libqpdf/QPDFPageLabelDocumentHelper.cc	3
/src/qpdf/include/qpdf/QPDFPageLabelDocumentHelper.hh	2
/src/qpdf/libqpdf/QPDFDocumentHelper.cc	1
/src/qpdf/libqpdf/QPDFOutlineDocumentHelper.cc	4
/src/qpdf/include/qpdf/QPDFOutlineDocumentHelper.hh	3
/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	8
/src/qpdf/include/qpdf/QPDFAcroFormDocumentHelper.hh	2
/src/qpdf/libqpdf/QPDFFormFieldObjectHelper.cc	30
/src/qpdf/include/qpdf/QPDFFormFieldObjectHelper.hh	2
/src/qpdf/libqpdf/QPDF_String.cc	6
/src/qpdf/include/qpdf/QPDFPageDocumentHelper.hh	1
/src/qpdf/include/qpdf/QPDFPageObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFPageObjectHelper.cc	9
/src/qpdf/include/qpdf/QPDFAnnotationObjectHelper.hh	2
/src/qpdf/libqpdf/QPDFAnnotationObjectHelper.cc	7
/src/qpdf/libqpdf/Pl_QPDFTokenizer.cc	3
/src/qpdf/libqpdf/QPDFMatrix.cc	11
/src/qpdf/libqpdf/QPDFNumberTreeObjectHelper.cc	7
/src/qpdf/libqpdf/NNTree.cc	28
/src/qpdf/libqpdf/qpdf/NNTree.hh	4
/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/libqpdf/QPDFNameTreeObjectHelper.cc	7
/src/qpdf/include/qpdf/QPDFNameTreeObjectHelper.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	4492	99.9%
gold	[1:9]	3	0.06%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	1	0.02%
All colors	4496	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
3331	1164	QPDFObjectHandle::newNull()	call site: 01164	__dynamic_cast
796	366	QPDFObjectHandle::QPDFObjectHandle(std::__1::shared_ptr &&)	call site: 00366	__cxa_allocate_exception
365	0	EP	call site: 00000	setenv

Runtime coverage analysis

Covered functions

6

Functions that are reachable but not covered

1748

Reachable functions

1763

Percentage of reachable functions covered

0.85%

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_fuzzer.cc	9
/src/qpdf/libqpdf/Buffer.cc	8
/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	3
/src/qpdf/include/qpdf/QIntC.hh	49
/usr/local/bin/../include/c++/v1/sstream	2
/usr/local/bin/../include/c++/v1/stdexcept	3
/src/qpdf/libqpdf/QPDF.cc	25
/src/qpdf/libqpdf/QPDF_objects.cc	51
/src/qpdf/libqpdf/qpdf/QPDF_private.hh	29
/src/qpdf/libqpdf/InputSource.cc	7
/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	8
/src/qpdf/libqpdf/qpdf/Util.hh	5
/src/qpdf/include/qpdf/QPDFTokenizer.hh	9
/src/qpdf/libqpdf/QUtil.cc	21
/src/qpdf/include/qpdf/QPDF.hh	12
/src/qpdf/include/qpdf/QPDFObjGen.hh	12
/src/qpdf/include/qpdf/QPDFXRefEntry.hh	2
/src/qpdf/libqpdf/QPDFParser.cc	29
/src/qpdf/libqpdf/qpdf/QPDFParser.hh	3
/src/qpdf/libqpdf/qpdf/QPDFTokenizer_private.hh	4
/src/qpdf/include/qpdf/QPDFObjectHandle.hh	17
/src/qpdf/include/qpdf/ObjectHandle.hh	8
/src/qpdf/libqpdf/qpdf/QPDFObjectHandle_private.hh	64
/src/qpdf/libqpdf/qpdf/QPDFObject_private.hh	47
/src/qpdf/libqpdf/QPDF_Array.cc	16
/src/qpdf/libqpdf/QPDFObjectHandle.cc	76
/src/qpdf/libqpdf/QPDFXRefEntry.cc	4
/src/qpdf/libqpdf/QPDF_Dictionary.cc	13
/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/Pl_Buffer.cc	5
/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	43
/src/qpdf/libqpdf/MD5.cc	6
/src/qpdf/libqpdf/QPDFCryptoProvider.cc	6
/src/qpdf/include/qpdf/QPDFCryptoProvider.hh	1
/src/qpdf/libqpdf/qpdf/MD5.hh	1
/src/qpdf/libqpdf/RC4.cc	2
/src/qpdf/libqpdf/qpdf/RC4.hh	1
/src/qpdf/libqpdf/Pl_SHA2.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	4
/src/qpdf/libqpdf/QPDF_optimization.cc	9
/src/qpdf/libqpdf/QPDFWriter.cc	62
/src/qpdf/libqpdf/qpdf/Pipeline_private.hh	9
/src/qpdf/libqpdf/QPDF_String.cc	3
/src/qpdf/libqpdf/qpdf/ObjTable.hh	19
/src/qpdf/libqpdf/qpdf/QPDFWriter_private.hh	1
/src/qpdf/libqpdf/QPDF_linearization.cc	17
/src/qpdf/libqpdf/QPDFSystemError.cc	2
/src/qpdf/include/qpdf/QPDFSystemError.hh	1
/src/qpdf/libqpdf/Pl_StdioFile.cc	1
/src/qpdf/libqpdf/Pl_MD5.cc	4
/src/qpdf/include/qpdf/QPDFWriter.hh	1
/src/qpdf/libqpdf/Pl_RC4.cc	1
/src/qpdf/include/qpdf/QUtil.hh	1
/src/qpdf/libqpdf/BitWriter.cc	4
/src/qpdf/libqpdf/qpdf/bits_functions.hh	1