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[subset] add a fuzzer target for subset_get_all_codepoints method. (#987)

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This commit is contained in:
Garret Rieger 2018-04-17 08:21:22 -06:00 committed by Behdad Esfahbod
parent 924803166e
commit c02b40e58f
4 changed files with 64 additions and 2 deletions
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7
test/fuzzing/CMakeLists.txt
View File

@ -2,6 +2,7 @@ if (HB_CHECK)
file (READ "${CMAKE_CURRENT_SOURCE_DIR}/Makefile.am" MAKEFILEAM)
extract_make_variable (hb_shape_fuzzer_SOURCES ${MAKEFILEAM})
extract_make_variable (hb_subset_fuzzer_SOURCES ${MAKEFILEAM})
extract_make_variable (hb_subset_get_codepoints_fuzzer_SOURCES ${MAKEFILEAM})
# TODO: enable these two
#extract_make_variable (FUZZING_CPPFLAGS ${MAKEFILEAM}) # extracting regex fail
@ -15,13 +16,17 @@ if (HB_CHECK)
add_executable (hb-subset-fuzzer ${hb_subset_fuzzer_SOURCES})
target_link_libraries (hb-subset-fuzzer harfbuzz-subset)
add_executable (hb-subset-get-codepoints-fuzzer ${hb_subset_get_codepoints_fuzzer_SOURCES})
target_link_libraries (hb-subset-get-codepoints-fuzzer harfbuzz-subset)
target_compile_definitions(hb-shape-fuzzer PUBLIC ${FUZZING_CPPFLAGS})
target_compile_definitions(hb-subset-fuzzer PUBLIC ${FUZZING_CPPFLAGS})
target_compile_definitions(hb-subset-get-codepoints-fuzzer PUBLIC ${FUZZING_CPPFLAGS})
add_test (NAME hb-shape-fuzzer
COMMAND "${PYTHON_EXECUTABLE}" run-shape-fuzzer-tests.py $<TARGET_FILE:hb-shape-fuzzer>
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
add_test (NAME hb-subset-fuzzer
COMMAND "${PYTHON_EXECUTABLE}" run-subset-fuzzer-tests.py $<TARGET_FILE:hb-subset-fuzzer>
COMMAND "${PYTHON_EXECUTABLE}" run-subset-fuzzer-tests.py $<TARGET_FILE:hb-subset-fuzzer> $<TARGET_FILE:hb-subset-get-codepoints-fuzzer>
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
endif ()

16
test/fuzzing/Makefile.am
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@ -23,6 +23,7 @@ EXTRA_DIST += \
check_PROGRAMS = \
hb-shape-fuzzer \
hb-subset-fuzzer \
hb-subset-get-codepoints-fuzzer \
$(NULL)
AM_CPPFLAGS = \
@ -64,6 +65,21 @@ hb_subset_fuzzer_DEPENDENCIES = \
lib \
$(NULL)
hb_subset_get_codepoints_fuzzer_SOURCES = \
hb-fuzzer.hh \
hb-subset-get-codepoints-fuzzer.cc \
main.cc \
$(NULL)
hb_subset_get_codepoints_fuzzer_LDADD = \
$(top_builddir)/src/libharfbuzz-subset-fuzzing.la \
$(NULL)
hb_subset_get_codepoints_fuzzer_CPPFLAGS = \
$(AM_CPPFLAGS) \
$(NULL)
hb_subset_get_codepoints_fuzzer_DEPENDENCIES = \
lib \
$(NULL)
check:
EXEEXT="$(EXEEXT)" srcdir="$(srcdir)" builddir="$(builddir)" $(srcdir)/run-shape-fuzzer-tests.py
EXEEXT="$(EXEEXT)" srcdir="$(srcdir)" builddir="$(builddir)" $(srcdir)/run-subset-fuzzer-tests.py

24
test/fuzzing/hb-subset-get-codepoints-fuzzer.cc Normal file
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@ -0,0 +1,24 @@
#include "hb-fuzzer.hh"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "hb-subset.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
printf ("hb-subset-get-codepoints-fuzzer: input size = %zu\n", size);
hb_blob_t *blob = hb_blob_create ((const char *)data, size,
HB_MEMORY_MODE_READONLY, NULL, NULL);
hb_face_t *face = hb_face_create (blob, 0);
hb_set_t *output = hb_set_create();
hb_subset_get_all_codepoints (face, output);
hb_set_destroy (output);
hb_face_destroy (face);
hb_blob_destroy (blob);
return 0;
}

19
test/fuzzing/run-subset-fuzzer-tests.py
View File

@ -8,15 +8,24 @@ srcdir = os.environ.get ("srcdir", ".")
EXEEXT = os.environ.get ("EXEEXT", "")
top_builddir = os.environ.get ("top_builddir", ".")
hb_subset_fuzzer = os.path.join (top_builddir, "hb-subset-fuzzer" + EXEEXT)
hb_subset_get_codepoints_fuzzer = os.path.join (top_builddir, "hb-subset-get-codepoints-fuzzer" + EXEEXT)
if not os.path.exists (hb_subset_fuzzer):
if len (sys.argv) == 1 or not os.path.exists (sys.argv[1]):
if len (sys.argv) < 2 or not os.path.exists (sys.argv[1]):
print ("""Failed to find hb-subset-fuzzer binary automatically,
please provide it as the first argument to the tool""")
sys.exit (1)
hb_subset_fuzzer = sys.argv[1]
if not os.path.exists (hb_subset_get_codepoints_fuzzer):
if len (sys.argv) < 3 or not os.path.exists (sys.argv[2]):
print ("""Failed to find hb-subset-get-codepoints-fuzzer binary automatically,
please provide it as the second argument to the tool""")
sys.exit (1)
hb_subset_get_codepoints_fuzzer = sys.argv[2]
print ('hb_subset_fuzzer:', hb_subset_fuzzer)
fails = 0
@ -24,6 +33,7 @@ parent_path = os.path.join (srcdir, "..", "subset", "data", "fonts")
print ("running subset fuzzer against fonts in %s" % parent_path)
for file in os.listdir (parent_path):
path = os.path.join(parent_path, file)
print ("running subset fuzzer against %s" % path)
p = subprocess.Popen ([hb_subset_fuzzer, path])
@ -31,6 +41,13 @@ for file in os.listdir (parent_path):
print ("failed for %s" % path)
fails = fails + 1
print ("running subset get codepoints fuzzer against %s" % path)
p = subprocess.Popen ([hb_subset_get_codepoints_fuzzer, path])
if p.wait () != 0:
print ("failed for %s" % path)
fails = fails + 1
if fails:
print ("%i subset fuzzer related tests failed." % fails)
sys.exit (1)