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#![no_main]
use libfuzzer_sys::fuzz_target;
extern crate qcms;
extern crate libc;
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
use qcms::c_bindings::{qcms_profile, icSigRgbData, icSigCmykData, icSigGrayData, qcms_profile_is_bogus};
use qcms::c_bindings::{qcms_profile_get_color_space, qcms_profile_get_rendering_intent, qcms_profile_from_memory, qcms_profile_release, qcms_profile_sRGB, qcms_transform_create};
use qcms::c_bindings::{qcms_profile_precache_output_transform, qcms_transform_data, qcms_transform_release, qcms_enable_iccv4};
use qcms::DataType::*;
unsafe fn transform(src_profile: *const qcms_profile, dst_profile: *mut qcms_profile, size: usize)
{
// qcms supports GRAY and RGB profiles as input, and RGB as output.
let src_color_space = qcms_profile_get_color_space(&*src_profile);
let mut src_type = if (size & 1) != 0 { RGBA8 } else { RGB8 };
if src_color_space == icSigGrayData {
src_type = if (size & 1) != 0 { GrayA8 } else { Gray8 };
} else if src_color_space == icSigCmykData {
src_type = CMYK;
} else if src_color_space != icSigRgbData {
return;
}
let dst_color_space = qcms_profile_get_color_space(&*dst_profile);
if dst_color_space != icSigRgbData {
return;
}
let dst_type = if (size & 2) != 0 { RGBA8 } else { RGB8 };
let intent = qcms_profile_get_rendering_intent(&*src_profile);
// Firefox calls this on the display profile to increase performance.
// Skip with low probability to increase coverage.
if (size % 15) != 0 {
qcms_profile_precache_output_transform(&mut *dst_profile);
}
let transform =
qcms_transform_create(&*src_profile, src_type, &*dst_profile, dst_type, intent);
if transform == std::ptr::null_mut() {
return;
}
const SRC_SIZE: usize = 36;
let src:[u8; SRC_SIZE] = [
0x7F, 0x7F, 0x7F, 0x00, 0x00, 0x7F, 0x7F, 0xFF, 0x7F, 0x10, 0x20, 0x30,
0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xB0, 0xBF, 0xEF, 0x6F,
0x3F, 0xC0, 0x9F, 0xE0, 0x90, 0xCF, 0x40, 0xAF, 0x0F, 0x01, 0x60, 0xF0,
];
let mut dst: [u8; 36 * 4] = [0; 144]; // 4x in case of GRAY to RGBA
qcms_transform_data(&*transform, src.as_ptr() as *const libc::c_void, dst.as_mut_ptr() as *mut libc::c_void, (SRC_SIZE / src_type.bytes_per_pixel()) as usize);
qcms_transform_release(transform);
}
unsafe fn do_fuzz(data: &[u8])
{
let size = data.len();
qcms_enable_iccv4();
let profile = qcms_profile_from_memory(data.as_ptr() as *const libc::c_void, size);
if profile == std::ptr::null_mut() {
return;
}
let srgb_profile = qcms_profile_sRGB();
if srgb_profile == std::ptr::null_mut() {
qcms_profile_release(profile);
return;
}
transform(profile, srgb_profile, size);
// Firefox only checks the display (destination) profile.
if !qcms_profile_is_bogus(&mut *profile) {
transform(srgb_profile, profile, size);
let identity = qcms::Profile::new_XYZD50();
transform(&*identity, profile, size);
}
qcms_profile_release(profile);
qcms_profile_release(srgb_profile);
return;
}
fuzz_target!(|data: &[u8]| {
unsafe { do_fuzz(data) }
});