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1656 Commits

Author SHA1 Message Date
Ebrahim Byagowi ffe06c8f04 [glyf] Guard all the public APIs against null pool runs 
Fixes https://crbug.com/oss-fuzz/24575 and https://crbug.com/oss-fuzz/24737
 2020-08-08 13:43:49 +04:30
Ebrahim Byagowi 01ac32aab2 Remove autotools build support 2020-08-07 23:28:12 +04:30
Ebrahim Byagowi 679fac87df Skip hb_shape if buffer object is immutable 2020-08-06 23:47:35 +04:30
Ebrahim Byagowi ec17b62457
[var] Apply variations on empty glyphs 
It was ignoring empty glyphs for no good reason, this fixes it.

Fixes #2618
 2020-08-06 20:16:11 +04:30
Garret Rieger 18ab8029d5 [ENOMEM] check vector status in cmap subsetting. 2020-08-02 00:30:17 +04:30
Garret Rieger 06dbb6acbb [ENOMEM] in GSUB ChainContext subsetting check maps for allocation errors. 2020-08-01 09:21:22 +04:30
Garret Rieger fb1477795c [ENOMEM] Check result of vector resize in CBDT subsetting. 2020-08-01 09:20:52 +04:30
Ebrahim Byagowi efd716de3f [cff] Check for scalars array resize result 
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24504
 2020-07-31 09:27:27 +04:30
Garret Rieger 040ed094ef [ENOMEM] popragate packed/packed_map errors to the serializer. 
Will disable further modifications based on a bad state.
 2020-07-31 08:39:26 +04:30
Garret Rieger 7f358a55f4 [ENOMEM] unchecked resize in CFF2. 2020-07-31 02:04:06 +04:30
Garret Rieger 32f052b033 [ENOMEM] Fix several instances of not checking resize in CFF. 2020-07-31 02:04:06 +04:30
Garret Rieger 15644ee60e [ENOMEM] fix memory leak if allocation fails during pop_pack(). 2020-07-30 04:15:35 +04:30
Garret Rieger 42237adffc [ENOMEM] make serializer modification operations no-ops if it's in an error state. 2020-07-30 03:59:49 +04:30
Garret Rieger 4ba8e3c6fd [ENOMEM] Fix failure to check calloc return. 
Fixes https://oss-fuzz.com/testcase-detail/6246465148813312.
 2020-07-30 00:08:08 +04:30
Garret Rieger d307c24abf [ENOMEM] check resize() return. 
Fixes https://oss-fuzz.com/testcase-detail/5641892164009984.
 2020-07-30 00:08:08 +04:30
Ebrahim Byagowi 48ad745996 [ENOMEM] Fix buffer's content check logic 
So now rest of shape fuzzer also can be enabled.

Fixes #2571
 2020-07-29 08:09:10 +04:30
Ebrahim Byagowi c33e8006fd [fuzz] Implement failing allocator 2020-07-29 07:35:34 +04:30
Ebrahim Byagowi d38d63319b
[tests] minor 2020-07-27 09:19:29 +04:30
Ebrahim Byagowi 322426f8c8 [tests] Use TTFont of fonttools to avoid temp files 2020-07-27 09:12:43 +04:30
Hamidreza Bayat 08fef15818 Use fonttools's python package instead of cli 2020-07-27 09:09:06 +04:30
Ebrahim Byagowi 5c46683ab8
[fuzz] increase shape fuzzer timeout 
as https://circleci.com/gh/harfbuzz/harfbuzz/149203
 2020-07-22 17:23:22 +04:30
Ebrahim Byagowi 945bcd7230
minor 2020-07-15 09:54:32 +04:30
Ebrahim Byagowi fa0436ddd1
[ENOMEM][fuzzer/subset] early return if the result is null 
I don't see _or_fail APIs idiomatic for the project but since it is there, let's have this
 2020-07-15 09:52:40 +04:30
Ebrahim Byagowi 11d583a9ea
[aat] Consume glyph insertion from buffer's max_ops (#2223) 
Glyph insertion is an expensive operation and we like to have it limited
based on buffer's input size which is handled by buffer's max_ops.

clusterfuzz-testcase-minimized-harfbuzz_fuzzer-5754958982021120:

Before the change: 0.67s user 0.00s system 99% cpu 0.674 total
 After the change: 0.02s user 0.00s system 98% cpu 0.024 total

Which takes much longer on valgrind and tsan bots.
 2020-07-13 18:53:06 -07:00
Ebrahim Byagowi cd6f62d960
[meson] Raise timeout value of subset fuzzer testcases 
happens when tsan is enabled
 2020-07-12 23:05:11 +04:30
Ebrahim Byagowi e4f9969108 [ci] migrate to meson 
two bots, one bot here (distcheck) and one in travis still run autotools and
won't be removed till we decide about autotools
 2020-07-08 19:18:31 +04:30
Ebrahim Byagowi e04050e3b8
[meson] split fuzzer_ldflags before use 2020-07-08 01:06:30 +04:30
Ebrahim Byagowi c5def34730 [meson] don't underscorify fuzzers names 2020-07-06 23:51:52 +04:30
Ebrahim Byagowi d608f2ac85 [meson] Add fuzzer_ldflags 
As ots, https://github.com/khaledhosny/ots/commit/4d37b9b
 2020-07-06 23:51:52 +04:30
Ebrahim Byagowi 694a0c6bbc [meson] Always add icu deps 2020-07-06 22:19:59 +04:30
Ebrahim Byagowi ba810ce83d [tests] Replace space with colon in batch mode 2020-07-06 13:53:19 +04:30
Ebrahim Byagowi 2013babcbf
[tests] Use HAVE_FREETYPE itself instead NO_FT_FUNCS 2020-07-06 11:57:45 +04:30
jfkthame 1e6027e29c
[aat] Correct array indexing when looking up actions in KerxSubTableFormat4 (#2539) 
* [aat] Correct array indexing when looking up actions in KerxSubTableFormat4.

- For action_type 0 and 1, there are 2 values per action record; for action_type 2, there are 4. So we need to account for these factors when indexing into the ankrData array.

Fixes https://github.com/harfbuzz/harfbuzz/issues/2531.
 2020-07-05 22:44:10 +01:00
Ebrahim Byagowi aa732e454a
[tests] minor, ligcarets is fetched from gdef not gsub 2020-07-06 00:10:16 +04:30
Ebrahim Byagowi 122a2897e4 [aat] Remove lcar support 
Very low use, only two distinct font files, Apple Chancery.ttf and Hoefler Text.ttc
have it so it really doesn't worth the size addition and so, but one may argue that
whole ligature caret is low use but guess we better to encourage GDEF one anyway.
 2020-07-06 00:05:36 +04:30
Ebrahim Byagowi a3b9b94b63
[style] Remove fdsc support (#2541) 
It isn't exposed yet and low use between Apple fonts,
32 fdsc table vs 767 OS/2 tables, even Apple doesn't
support it anymore per Ned.
 2020-07-06 00:05:21 +04:30
Ebrahim Byagowi a470b0b205 Minor, disable strict-aliasing warning in set fuzzer 
../test/fuzzing/hb-set-fuzzer.cc: In function ‘int LLVMFuzzerTestOneInput(const uint8_t*, size_t)’:
../test/fuzzing/hb-set-fuzzer.cc:38:82: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   38 |   const instructions_t &instructions = reinterpret_cast<const instructions_t &> (data);
      |

And it is already disabled at project level so let's disable it here also.
 2020-07-05 10:49:10 +04:30
Ebrahim Byagowi 4db1b4f1a2 [tests] rename no_ft_funcs to NO_FT_FUNCS 2020-07-04 16:21:21 +04:30
Ebrahim Byagowi a07672d353 [py] minor, replace os.environ.get with os.getenv 2020-07-04 16:16:15 +04:30
Ebrahim Byagowi 43e3ab019c [tests] make tests work when ft isn't present 2020-07-04 13:56:08 +04:30
Ebrahim Byagowi c4b6bad73a [tests] revert da95a8c and use the shared hb-shape process 2020-07-04 13:56:08 +04:30
Ebrahim Byagowi 831b090001 rebase draw test as recent roundf changes 2020-06-28 14:31:21 +04:30
Ebrahim Byagowi cb7fb3cf4a
Add test for a783840789 2020-06-28 13:41:33 +04:30
Ebrahim Byagowi 47a0fbec31 [meson] Mark longer tests with slow 
So one can skip them easily by `meson test -Cbuild --no-suite slow`
 2020-06-21 08:47:10 +04:30
Ebrahim Byagowi 0881611778 [fuzzer] Make some use for test_font API calls 
Making some use for result of some of the test_font calls to make
sure compilers in fuzzers aren't just optimizing the calls.
 2020-06-20 22:06:11 +04:30
Ebrahim Byagowi b4f34539c2 [fuzzer] test more of ot-layout APIs 2020-06-20 22:06:11 +04:30
Ebrahim Byagowi 675854b2ba [test] Add one more test for hb_ot_layout_feature_get_characters 2020-06-19 23:27:39 +04:30
Ebrahim Byagowi 1bac85828c [layout] Rename _get_alternates to _get_glyph_alternates 2020-06-18 22:56:07 +04:30
Ebrahim Byagowi 1348a2c865 [layout] hb_ot_layout_lookup_get_alternates, a new API 
An API to retrieve one-to-one alternates from a given GSUB lookup index.
 2020-06-18 09:11:07 +04:30
Khaled Hosny 09dedb1b38 [tests] I’m an idiot 2020-06-18 02:29:12 +02:00