Fuzz introspector
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues
Project coverage
Per-fuzzer coverage

Table of contents

Project overview: ntp
High level conclusions
Reachability and coverage overview
Fuzzers overview
Project functions overview
Fuzzer details
Fuzzer: conftest.cpp
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: tests/fuzz/fuzz_ntpd_receive.c
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Analyses and suggestions
Optimal target analysis
Remaining optimal interesting functions
All functions overview
Runtime coverage analysis
Complex functions with low coverage
Files and Directories in report
Files in report
Directories in report
Metadata section
Function call coverage
Function in each files in report
Report generation date: 2023-03-26

Project overview: ntp

High level conclusions

Reachability and coverage overview

Functions statically reachable by fuzzers
22.7%
360/1581
Cyclomatic complexity statically reachable by fuzzers
25.8%
2928/11312
Runtime code coverage of functions
11.0%
169 / 1581

Fuzzers overview

Fuzzer Fuzzer filename Functions Reached Functions unreached Fuzzer depth Files reached Basic blocks reached Cyclomatic complexity Details
conftest.cpp conftest.cpp 1 0 0 1 1 2 conftest.cpp
tests/fuzz/fuzz_ntpd_receive.c tests/fuzz/fuzz_ntpd_receive.c 446 1338 15 61 8700 3106 fuzz_ntpd_receive.c

Project functions overview

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 Fuzzers runtime hit Func lines hit % I Count BB Count Cyclomatic complexity Functions reached Reached by functions Accumulated cyclomatic complexity Undiscovered complexity

Fuzzer details

Fuzzer: conftest.cpp

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

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 0 0.0%
gold [1:9] 0 0.0%
yellow [10:29] 0 0.0%
greenyellow [30:49] 0 0.0%
lawngreen 50+ 1 100.%
All colors 1 100

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
5448 10879 12 :

['isc_assertion_failed', 'process_packet', 'report_event', 'unpeer', 'fast_xmit', 'authistrustedip', 'poll_update', 'newpeer', 'socktoa', 'msyslog', 'kiss_code_check', 'ntohl']

5448 10879 receive call site: 00000 /src/ntp-dev/ntpd/ntp_proto.c:1434
1716 2553 13 :

['refclock_control', 'htons', 'ctl_flushpkt', 'ctl_puthex', 'ctl_putpeer', 'ctlsysstatus', 'ctl_putsys', 'strlen', 'ctl_putdata', 'ctlclkstatus', 'ctlpeerstatus', 'free_varlist', 'ctl_putclock']

1716 2553 report_event call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:5025
1105 1105 1 :

['newpeer']

1105 1105 receive call site: 00000 /src/ntp-dev/ntpd/ntp_proto.c:1359
868 1315 6 :

['ctl_getitem', 'isc_assertion_failed', 'htons', 'ctl_flushpkt', 'ctl_putpeer', 'ctlpeerstatus']

868 1658 read_peervars call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:3296
750 750 1 :

['isc_log_write']

752 752 try_proto call site: 00000 /src/ntp-dev/libntp/./../lib/isc/unix/net.c:177
742 2238 6 :

['isc_assertion_failed', 'ctl_getitem', 'ctl_flushpkt', 'ctl_putdata', 'strlen', 'ctl_putsys']

742 2924 read_sysvars call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:3363
436 788 4 :

['ctlpeerstatus', 'ctl_flushpkt', 'ctl_putpeer', 'htons']

436 788 read_status call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:3243
406 406 1 :

['linux_if_inet6_current']

406 406 internal_current call site: 00000 /src/ntp-dev/libntp/./../lib/isc/unix/ifiter_getifaddrs.c:158
394 394 1 :

['process_private']

394 394 receive call site: 00000 /src/ntp-dev/ntpd/ntp_proto.c:675
375 375 1 :

['isc_log_write']

491 491 isc_interfaceiter_create call site: 00000 /src/ntp-dev/libntp/./../lib/isc/unix/ifiter_getifaddrs.c:79
373 373 1 :

['ctl_putfs']

373 373 ctl_putsys call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:2119
373 373 1 :

['ctl_putfs']

373 373 ctl_putsys call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:2128

Runtime coverage analysis

Covered functions
170
Functions that are reachable but not covered
0
Reachable functions
1
Percentage of reachable functions covered
100.0%
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.
Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
conftest.cpp 1

Fuzzer: tests/fuzz/fuzz_ntpd_receive.c

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

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 1474 75.0%
gold [1:9] 295 15.0%
yellow [10:29] 27 1.37%
greenyellow [30:49] 31 1.57%
lawngreen 50+ 137 6.97%
All colors 1964 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
5448 10879 12 :

['isc_assertion_failed', 'process_packet', 'report_event', 'unpeer', 'fast_xmit', 'authistrustedip', 'poll_update', 'newpeer', 'socktoa', 'msyslog', 'kiss_code_check', 'ntohl']

5448 10879 receive call site: 01663 /src/ntp-dev/ntpd/ntp_proto.c:1434
1716 2553 13 :

['refclock_control', 'htons', 'ctl_flushpkt', 'ctl_puthex', 'ctl_putpeer', 'ctlsysstatus', 'ctl_putsys', 'strlen', 'ctl_putdata', 'ctlclkstatus', 'ctlpeerstatus', 'free_varlist', 'ctl_putclock']

1716 2553 report_event call site: 01277 /src/ntp-dev/ntpd/ntp_control.c:5025
1105 1105 1 :

['newpeer']

1105 1105 receive call site: 01589 /src/ntp-dev/ntpd/ntp_proto.c:1359
868 1315 6 :

['ctl_getitem', 'isc_assertion_failed', 'htons', 'ctl_flushpkt', 'ctl_putpeer', 'ctlpeerstatus']

868 1658 read_peervars call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:3296
750 750 1 :

['isc_log_write']

752 752 try_proto call site: 00300 /src/ntp-dev/libntp/./../lib/isc/unix/net.c:177
742 2238 6 :

['isc_assertion_failed', 'ctl_getitem', 'ctl_flushpkt', 'ctl_putdata', 'strlen', 'ctl_putsys']

742 2924 read_sysvars call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:3363
436 788 4 :

['ctlpeerstatus', 'ctl_flushpkt', 'ctl_putpeer', 'htons']

436 788 read_status call site: 00000 /src/ntp-dev/ntpd/ntp_control.c:3243
406 406 1 :

['linux_if_inet6_current']

406 406 internal_current call site: 00634 /src/ntp-dev/libntp/./../lib/isc/unix/ifiter_getifaddrs.c:158
394 394 1 :

['process_private']

394 394 receive call site: 00985 /src/ntp-dev/ntpd/ntp_proto.c:675
375 375 1 :

['isc_log_write']

491 491 isc_interfaceiter_create call site: 00615 /src/ntp-dev/libntp/./../lib/isc/unix/ifiter_getifaddrs.c:79
373 373 1 :

['ctl_putfs']

373 373 ctl_putsys call site: 01354 /src/ntp-dev/ntpd/ntp_control.c:2119
373 373 1 :

['ctl_putfs']

373 373 ctl_putsys call site: 01363 /src/ntp-dev/ntpd/ntp_control.c:2128

Runtime coverage analysis

Covered functions
170
Functions that are reachable but not covered
295
Reachable functions
446
Percentage of reachable functions covered
33.86%
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
tests/fuzz/fuzz_ntpd_receive.c 2
tests/fuzz/../../ntpd/ntp_io.c 59
libntp/recvbuff.c 8
libntp/emalloc.c 3
libntp/msyslog.c 5
libntp/humandate.c 1
libntp/./../lib/isc/assertions.c 1
libntp/authkeys.c 13
ntpd/ntp_util.c 7
ntpd/ntp_filegen.c 6
ntpd/ntp_monitor.c 9
ntpd/ntp_restrict.c 14
ntpd/ntp_timer.c 5
libntp/syssignal.c 1
libntp/lib_strbuf.c 1
libntp/./../lib/isc/unix/net.c 8
libntp/./../lib/isc/unix/strerror.c 2
libntp/./../lib/isc/pthreads/mutex.c 1
libntp/./../lib/isc/error.c 3
libntp/./../lib/isc/nls/msgcat.c 2
libntp/./../lib/isc/log.c 6
libntp/./../lib/isc/unix/time.c 6
libntp/strl_obsd.c 2
libntp/./../lib/isc/unix/dir.c 4
libntp/./../lib/isc/unix/errno2result.c 1
libntp/./../lib/isc/unix/file.c 2
libntp/./../lib/isc/result.c 4
libntp/./../lib/isc/lib.c 2
libntp/./../lib/isc/unix/stdio.c 1
libntp/systime.c 7
ntpd/ntp_request.c 3
ntpd/ntp_control.c 27
ntpd/ntp_peer.c 14
libntp/ntp_random.c 2
ntpd/ntp_proto.c 21
libntp/../include/timespecops.h 6
libntp/dolfptoa.c 2
ntpd/ntp_loopfilter.c 8
libntp/./../lib/isc/netaddr.c 5
libntp/socktoa.c 3
libntp/socket.c 2
libntp/a_md5encrypt.c 4
libntp/./../lib/isc/md5.c 5
libntp/./../lib/isc/unix/ifiter_getifaddrs.c 5
libntp/./../lib/isc/unix/interfaceiter.c 8
libntp/netof.c 1
tests/fuzz/../../ntpd/ntp_config.c 2
libntp/ntp_calendar.c 31
libntp/numtoa.c 2
libntp/./../lib/isc/tsmemcmp.c 1
libntp/modetoa.c 1
libntp/statestr.c 4
libntp/refnumtoa.c 1
libntp/clocktypes.c 1
ntpd/ntp_leapsec.c 8
ntpd/ntp_refclock.c 3
ntpd/../include/ntp_types.h 1
libntp/../include/timevalops.h 3
libntp/machines.c 1
libntp/xsbprintf.c 2
libntp/vint64ops.c 1

Analyses and suggestions

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name Functions filename Arg count Args Function depth hitcount instr count bb count cyclomatic complexity Reachable functions Incoming references total cyclomatic complexity Unreached complexity
getconfig /src/ntp-dev/tests/fuzz/../../ntpd/ntp_config.c 2 ['int ', 'char **'] 13 0 84 12 4 695 0 4212 2108
ntpOptionProcess /src/ntp-dev/libntp/ntp_libopts.c 3 ['struct.options *', 'int ', 'char **'] 10 0 24 3 2 147 0 795 630
jjy_start /src/ntp-dev/ntpd/refclock_jjy.c 2 ['int ', 'struct.peer.605 *'] 7 0 346 32 8 271 0 1661 469
gpsd_start /src/ntp-dev/ntpd/refclock_gpsdjson.c 2 ['int ', 'struct.peer.478 *'] 7 0 352 46 15 211 0 1028 322
wwv_start /src/ntp-dev/ntpd/refclock_wwv.c 2 ['int ', 'struct.peer.854 *'] 7 0 386 41 14 264 0 1581 312
nmea_start /src/ntp-dev/ntpd/refclock_nmea.c 2 ['int ', 'struct.peer.694 *'] 7 0 226 24 5 200 0 954 170
palisade_start /src/ntp-dev/ntpd/refclock_palisade.c 2 ['int ', 'struct.peer.721 *'] 7 0 256 24 7 263 0 1483 159
arc_start /src/ntp-dev/ntpd/refclock_arc.c 2 ['int ', 'struct.peer.976 *'] 7 0 335 44 12 251 0 1450 150
optionParseShell /src/ntp-dev/sntp/libopts/./makeshell.c 1 ['struct.options *'] 4 0 262 32 8 63 0 244 150
read_mru_list /src/ntp-dev/ntpd/ntp_control.c 2 ['struct.recvbuf *', 'int '] 7 0 1310 239 88 131 0 598 148

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

Functions statically reachable by fuzzers
59.4%
940/1581
Cyclomatic complexity statically reachable by fuzzers
65.3%
7388 / 11312

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name Functions filename Args Function call depth Reached by Fuzzers Fuzzers runtime hit Func lines hit % I Count BB Count Cyclomatic complexity Functions reached Reached by functions Accumulated cyclomatic complexity Undiscovered complexity

Runtime coverage analysis

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name Function total lines Lines covered at runtime percentage covered Reached by fuzzers
isc_interfaceiter_create 61 31 50.81% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
get_addr 47 12 25.53% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
try_proto 71 25 35.21% []
try_ipv6only 54 23 42.59% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
addto_syslog 67 28 41.79% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
report_event 94 28 29.78% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
read_peervars 36 13 36.11% []
read_clockstatus 80 24 30.0% []
ctl_putsys 460 116 25.21% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
filegen_setup 36 7 19.44% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
ntp_monitor 101 17 16.83% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
findpeer 31 14 45.16% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
receive 753 219 29.08% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
hack_restrict 87 42 48.27% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
sendpkt 77 41 53.24% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
update_interfaces 156 73 46.79% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
interface_action 84 24 28.57% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
add_interface 128 60 46.87% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']
open_socket 114 62 54.38% ['/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c']

Files and Directories in report

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file Reached by Covered by
[] []
/src/ntp-dev/ntpd/refclock_arc.c [] []
/src/ntp-dev/sntp/libopts/./reset.c [] []
/src/ntp-dev/ntpd/cmd_args.c [] []
/src/ntp-dev/libntp/./../lib/isc/netaddr.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/ntp_refclock.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_ulink.c [] []
/src/ntp-dev/ntpd/refclock_true.c [] []
/src/ntp-dev/libntp/clocktypes.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_tsyncpci.c [] []
/src/ntp-dev/ntpd/refclock_acts.c [] []
/src/ntp-dev/ntpd/ntp_util.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/sntp/libopts/./save.c [] []
/src/ntp-dev/sntp/libopts/./enum.c [] []
/src/ntp-dev/ntpd/refclock_hpgps.c [] []
/src/ntp-dev/sntp/libopts/./version.c [] []
/src/ntp-dev/libntp/socktoa.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/humandate.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/icom.c [] []
/src/ntp-dev/sntp/libopts/./ag-char-map.h [] []
/src/ntp-dev/libntp/./../lib/isc/unix/ifiter_getifaddrs.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/./../lib/isc/pthreads/mutex.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/tests/fuzz/../../ntpd/ntpd-opts.c [] []
/src/ntp-dev/ntpd/refclock_pcf.c [] []
/src/ntp-dev/sntp/libopts/./configfile.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/time.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/tests/fuzz/ntp_parser.c [] []
/src/ntp-dev/sntp/libopts/./init.c [] []
/src/ntp-dev/ntpd/refclock_pst.c [] []
/src/ntp-dev/libntp/emalloc.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/refclock_chu.c [] []
/src/ntp-dev/libntp/./../lib/isc/backtrace.c [] []
/src/ntp-dev/ntpd/refclock_heath.c [] []
/src/ntp-dev/libntp/work_thread.c [] []
/src/ntp-dev/ntpd/ntp_loopfilter.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/conftest.cpp ['conftest.cpp'] ['conftest.cpp']
/src/ntp-dev/tests/fuzz/../../ntpd/ntp_scanner.c [] []
/src/ntp-dev/sntp/libopts/./time.c [] []
/src/ntp-dev/ntpd/../include/ntp_types.h ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/sntp/libopts/./tokenize.c [] []
/src/ntp-dev/ntpd/ntp_filegen.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/refclock_gpsdjson.c [] []
/src/ntp-dev/libntp/strl_obsd.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/../include/timevalops.h ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_nmea.c [] []
/src/ntp-dev/ntpd/refclock_wwvb.c [] []
/src/ntp-dev/libntp/ymd2yd.c [] []
/src/ntp-dev/sntp/libopts/./restore.c [] []
/src/ntp-dev/sntp/libopts/./file.c [] []
/src/ntp-dev/ntpd/./../libjsmn/jsmn.c [] []
/src/ntp-dev/libntp/ntp_libopts.c [] []
/src/ntp-dev/ntpd/refclock_hopfpci.c [] []
/src/ntp-dev/sntp/libopts/./alias.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/strerror.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/refnumtoa.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/authreadkeys.c [] []
/src/ntp-dev/libntp/ntp_rfc2553.c [] []
/src/ntp-dev/ntpd/refclock_chronolog.c [] []
/src/ntp-dev/ntpd/refclock_fg.c [] []
/src/ntp-dev/sntp/libopts/./numeric.c [] []
/src/ntp-dev/libntp/machines.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/prettydate.c [] []
/src/ntp-dev/ntpd/rc_cmdlength.c [] []
/src/ntp-dev/libntp/./../lib/isc/assertions.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/sntp/libopts/./env.c [] []
/src/ntp-dev/sntp/libopts/./boolean.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/stdio.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/sntp/libopts/./genshell.c [] []
/src/ntp-dev/ntpd/refclock_local.c [] []
/src/ntp-dev/sntp/libopts/./cook.c [] []
/src/ntp-dev/sntp/libopts/./pgusage.c [] []
/src/ntp-dev/ntpd/refclock_jjy.c [] []
/src/ntp-dev/sntp/libopts/./makeshell.c [] []
/src/ntp-dev/libntp/netof.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/atoint.c [] []
/src/ntp-dev/ntpd/ntp_proto.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/audio.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/dir.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/../include/timespecops.h ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/socket.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/ntp_monitor.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/refclock_irig.c [] []
/src/ntp-dev/tests/fuzz/../../ntpd/ntp_io.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/sntp/libopts/./text_mmap.c [] []
/src/ntp-dev/ntpd/refclock_leitch.c [] []
/src/ntp-dev/libntp/xsbprintf.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/sntp/libopts/./streqvcmp.c [] []
/src/ntp-dev/libntp/./../lib/isc/buffer.c [] []
/src/ntp-dev/ntpd/refclock_zyfer.c [] []
/src/ntp-dev/sntp/libopts/./putshell.c [] []
/src/ntp-dev/ntpd/refclock_palisade.c [] []
/src/ntp-dev/libntp/./../lib/isc/random.c [] []
/src/ntp-dev/libntp/ntp_intres.c [] []
/src/ntp-dev/sntp/libopts/./autoopts.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/interfaceiter.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_neoclock4x.c [] []
/src/ntp-dev/libntp/clocktime.c [] []
/src/ntp-dev/sntp/libopts/./find.c [] []
/src/ntp-dev/libntp/./../lib/isc/log.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/caltontp.c [] []
/src/ntp-dev/libntp/dolfptoa.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/statestr.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/ntp_request.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/sntp/libopts/./check.c [] []
/src/ntp-dev/libntp/a_md5encrypt.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/ntp_worker.c [] []
/src/ntp-dev/libntp/modetoa.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/sntp/libopts/./option-value-type.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/errno2result.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_shm.c [] []
/src/ntp-dev/ntpd/refclock_as2201.c [] []
/src/ntp-dev/sntp/libopts/./parse-duration.c [] []
/src/ntp-dev/sntp/libopts/./nested.c [] []
/src/ntp-dev/libntp/./../lib/isc/sha1.c [] []
/src/ntp-dev/ntpd/ntp_control.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/syssignal.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/sntp/libopts/./sort.c [] []
/src/ntp-dev/ntpd/refclock_arbiter.c [] []
/src/ntp-dev/sntp/libopts/./stack.c [] []
/src/ntp-dev/libntp/ntp_calendar.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/ntp_leapsec.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/msyslog.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/tests/fuzz/../../ntpd/ntp_config.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/lib_strbuf.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/ntp_peer.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/./../lib/isc/error.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/ntp_restrict.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/ntpd/ntp_timer.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/caljulian.c [] []
/src/ntp-dev/libntp/./../lib/isc/md5.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/sntp/libopts/./usage.c [] []
/src/ntp-dev/libntp/./../lib/isc/unix/file.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_datum.c [] []
/src/ntp-dev/tests/fuzz/../../ntpd/ntp_parser.y [] []
/src/ntp-dev/ntpd/refclock_dumbclock.c [] []
/src/ntp-dev/ntpd/refclock_wwv.c [] []
/src/ntp-dev/libntp/./../lib/isc/tsmemcmp.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/numtoa.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/findconfig.c [] []
/src/ntp-dev/libntp/systime.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/vint64ops.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/./../lib/isc/result.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/./../lib/isc/unix/net.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/./../lib/isc/nls/msgcat.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/libntp/is_ip_address.c [] []
/src/ntp-dev/sntp/libopts/./compat/pathfind.c [] []
/src/ntp-dev/sntp/libopts/./load.c [] []
/src/ntp-dev/libntp/recvbuff.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/decodenetnum.c [] []
/src/ntp-dev/libntp/authkeys.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/libntp/ntp_random.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']
/src/ntp-dev/sntp/libopts/./option-xat-attribute.c [] []
/src/ntp-dev/libntp/./../lib/isc/lib.c ['tests/fuzz/fuzz_ntpd_receive.c'] []
/src/ntp-dev/ntpd/refclock_hopfser.c [] []
/src/ntp-dev/tests/fuzz/fuzz_ntpd_receive.c ['tests/fuzz/fuzz_ntpd_receive.c'] ['tests/fuzz/fuzz_ntpd_receive.c']

Directories in report

Directory
/src/ntp-dev/libntp/./../lib/isc/nls/
/src/ntp-dev/
/src/ntp-dev/ntpd/../include/
/src/ntp-dev/ntpd/
/src/ntp-dev/ntpd/./../libjsmn/
/src/ntp-dev/libntp/./../lib/isc/pthreads/
/src/ntp-dev/libntp/./../lib/isc/
/src/ntp-dev/tests/fuzz/
/src/ntp-dev/sntp/libopts/./
/src/ntp-dev/sntp/libopts/./compat/
/src/ntp-dev/libntp/./../lib/isc/unix/
/src/ntp-dev/tests/fuzz/../../ntpd/
/src/ntp-dev/libntp/../include/
/src/ntp-dev/libntp/

Metadata section

This sections shows the raw data that is used to produce this report. This is mainly used for further processing and developer debugging.

Fuzzer Calltree file Program data file Coverage file
conftest.cpp fuzzerLogFile-0-EsISVNXtg3.data fuzzerLogFile-0-EsISVNXtg3.data.yaml fuzz_ntpd_receive.covreport
tests/fuzz/fuzz_ntpd_receive.c fuzzerLogFile-0-idcLglHRfI.data fuzzerLogFile-0-idcLglHRfI.data.yaml fuzz_ntpd_receive.covreport

Function call coverage

This section shows a chosen list of functions / methods calls and their relative coverage information. By static analysis of the target project code, all of these function call and their caller information, including the source file or class and line number that initiate the call are captured. Column 1 is the function name of that selected functions or methods. Column 2 of each row indicate if the target function covered by any fuzzer calltree information. Column 3 lists all fuzzers (or no fuzzers at all) that have coered that particular function call dynamically. Column 4 shows list of parent function for the specific function call, while column 5 shows possible blocker functions that make the fuzzers fail to reach the specific functions. Both column 4 and 5 will only show information if none of the fuzzers cover the target function calls.

Function in each files in report

Target sink Callsite location Reached by fuzzer Function call path Covered by fuzzer Possible branch blockers