0ccb4f0071
Merge branch 'rg-matchcolors' of https://github.com/castano/stb into working
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5a8702567a
credit for PR
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da888065bf
Merge branch 'master' of https://github.com/Vawx/stb into working
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fb1cea02f8
tweak PR
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add7adc3ea
Merge branch 'patch-1' of https://github.com/vickit144/stb into working
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fd9c3ea4af
Merge branch 'bmp-assert' of https://github.com/zturtleman/stb into working
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6f7420a825
add credits for last few PR merges
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67881b61ab
Merge branch 'stbds-arraddn' of https://github.com/HeroicKatora/stb into working
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1c816743b6
make PR compile in MSVC6
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cae8e852f6
Merge branch 'perfect-endpoint-quantization' of https://github.com/castano/stb into test
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cae97bdb17
Merge branch 'alloca-fix' of https://github.com/mackron/stb into test
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fdafd1aab4
Merge branch 'loadgif-realloc-sized' of https://github.com/SasLuca/stb into test
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b3a74a5c8a
fix PR to work on VC6
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206529e08e
Merge branch 'unused#801' of https://github.com/hashitaku/stb into test
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dfdb7d9c14
stb_ds: use keyoffset in key comparison
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523a14f3e1
stb_image_write: small buffer to avoid calling fwrite on every pixel
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802a1df278
tweak indentation
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c5b527aa01
modern seeding of mersenne twister
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1e400e21d2
stb_ds: fix shputs() for strdup and arena hash table
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c24de24aa8
stb_vorbis: Add missing error checks in comment reading mallocs
...
Fixes #988 .
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3b14b5afa6
Update Makefile
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c8303509fa
make fuzz target compilable as c++ code
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9cd6cdc0e5
add ossfuzz build script
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a6b384358f
Merge branch 'fuzzer_updates' of https://github.com/randy408/stb into fuzzer_updates
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a7fed59fe4
add fuzz target to Makefile
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9e292f0731
Fix minor typo in comment on line 6532
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ec898982b0
stbi: use __thread if GCC can't use _Thread_local
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8cb98357de
stbi: fix thread local selector
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* GCC < 5 supports __thread and GCC >= 5 supports C11 with _Thread_local
* Skip _Thread_local for MSVC because it may not be supported
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d1d0e9fdb0
add fuzz target to Makefile
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5a7af50fa5
remove stb_png_read_fuzzer.options
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88062723ff
rename fuzz target
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b75413f8a4
do not define STBI_ONLY_PNG in fuzz target
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4bafa56899
rename fuzz target, add entry point
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2d0faa4d26
stb_vorbis.c: Fix missing update to 64-bit alignment
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c29138ba59
Add randy408 to the "Bug warnings & fixes" list.
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29d639546d
fix integer arithmetic in stbi__zexpand()
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b09cb2c6f5
Add Ryan C. Gordon to "Bug & warning fixes" contribution list.
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89f3f35c9f
stbi__skip should return immediately if skipping zero bytes.
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Otherwise we might waste time or throw away state in the i/o callbacks.
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d60594847e
Reject images that are too large (as defined by the application).
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The BMP loader already had this hardcoded to (1 << 24) pixels, so this seems
like a good default to apply to all formats, but many apps will want to clamp
this much much lower.
It's possible to craft malicious but valid images that are enormous, causing
stb_image to allocate tons of memory and eat a ton of CPU, so locking these
to a maximum permitted size can save a lot of headaches in the wild.
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98ca24b8c7
Turn several asserts into formal checks.
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There are several places where stb_image protects itself from bad data with
STBI_ASSERT macros, but if these are compiled out in release builds the code
will overflow buffers, etc, without warning. If they are left enabled, the
process will crash from assertion failures.
This patch attempts to leave the assertions in place that are meant to verify
the correctness of the interfaces (if the calling function was meant to pass
only 8 or 16 for bit depth, it's reasonable to assert that is accurate), but
changes asserts that are triggered by corrupt or malicious image file data.
Failed asserts were the majority of crashes during fuzzing; now all of these
cases safely report an error back to the calling app.
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95560bc6cf
Be more aggressive about unexpected EOF conditions.
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Fixes several hangs in the presence of bad input data.
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eb4b057f0d
Check a return value for errors.
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Catches bad input data found during fuzzing.
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b5d2296d5d
Check for some obviously bad inputs from corrupt/malicious data.
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These all caused crashes during fuzzing.
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385b5d3cda
stbi__stdio_eof() should check ferror(), too.
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Otherwise with filesystem errors, you might end up with a short read but
believe there's still more to read from the file, causing infinite loops.
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00f3f01be3
fseek() resets the EOF flag, even if seeking past the end of a read-only file.
...
This causes problems when stb_image tries to do this with stdio callbacks with
a maliciously crafted file (or just an unfortunately corrupt one)...
// calls fread(), sets EOF flag, sets s->read_from_callbacks = 0
stbi__refill_buffer(s);
// calls fseek(), which resets the stream's EOF flag
stbi__skip(some value we just read)
// calls feof(), which always returns false because EOF flag was reset.
while (!stbi__at_eof(s)) {
// never calls fread() because s->read_from_callbacks==0
stbi__refill_buffer(s);
// loop forever
}
To work around this, after seeking, we call fgetc(), which will set the EOF
flag as appropriate, and if not at EOF, we ungetc the byte so future reads
are correct. This fixes the infinite loop.
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d8df5e9974
Add myself to the list of contributors
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The pull-request template says to do so.
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47a3c4f5b5
stb_vorbis.c - Detect `__NEWLIB__` for `alloca.h`
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This is needed for `stb_vorbis.c` to compile for the Wii U using
devkitPro.
This should theoretically also fix compilation for the Nintendo
Switch, 3DS, and Wii (with devkitPro, that is) as they all also use
Newlib.
Newlib is also used by Cygwin:
https://cygwin.com/git/?p=newlib-cygwin.git;a=blob;f=newlib/libc/include/alloca.h;h=5d36318914282280b353aed457e1b1f64947b584;hb=HEAD
And the Google Native Client:
https://chromium.googlesource.com/native_client/nacl-newlib/+/refs/heads/master/newlib/libc/include/alloca.h
As you can see from these links, these both provide `alloca.h` as
well, so it appears to be a safe guarantee that `alloca.h` is
available on Newlib.
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fdec118312
Added fuzzer for stb_c_lexer
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c7cf85ffce
Integrate more accurate index selection by Rich Geldreich.
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385b65da00
remove + 1 from stb_strscpy and offset of -1 (n--) in readdir_raw
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Fix to buffer issue where stb_strscpy would use + 1 for buffer length when stb_p_strcpy_s is called, causing a stack variable corrupted issue.
Fix to readdir_raw to no longer account for stb_strscpy having + 1 in buffer length.
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Sean Barrett
Srđan Stipić
Rémi Verschelde
Randy
Colton G. Rushton
Recep Aslantas
Pedro J. Estébanez
Ryan C. Gordon
Clownacy
Adam Korczynski
Ignacio Castano
Kyle Langley