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//---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2025 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include <stdint.h>
#include "lcms2_plugin.h"
CMSAPI cmsPipeline* CMSEXPORT _cmsReadInputLUT(cmsHPROFILE hProfile, cmsUInt32Number Intent);
CMSAPI cmsPipeline* CMSEXPORT _cmsReadOutputLUT(cmsHPROFILE hProfile, cmsUInt32Number Intent);
CMSAPI cmsPipeline* CMSEXPORT _cmsReadDevicelinkLUT(cmsHPROFILE hProfile, cmsUInt32Number Intent);
// Read and decode all tags on a profile
static
void ReadAllTags(cmsHPROFILE h)
{
cmsInt32Number i, n;
cmsTagSignature sig;
n = cmsGetTagCount(h);
for (i = 0; i < n; i++) {
sig = cmsGetTagSignature(h, i);
if (cmsReadTag(h, sig) == NULL) return;
}
}
// Read all raw tags on a profile
static
void ReadAllRAWTags(cmsHPROFILE h)
{
cmsInt32Number i, n;
cmsTagSignature sig;
cmsInt32Number len;
n = cmsGetTagCount(h);
for (i = 0; i < n; i++) {
sig = cmsGetTagSignature(h, i);
len = cmsReadRawTag(h, sig, NULL, 0);
}
}
// Read and decode information
static
void FetchInfo(cmsHPROFILE h, cmsInfoType Info)
{
wchar_t* text;
cmsInt32Number len;
cmsContext id = 0;
len = cmsGetProfileInfo(h, Info, "en", "US", NULL, 0);
if (len == 0) return;
text = (wchar_t*)_cmsMalloc(id, len);
if (text != NULL) {
cmsGetProfileInfo(h, Info, "en", "US", text, len);
_cmsFree(id, text);
}
}
// Get all information
static
void FetchAllInfos(cmsHPROFILE h)
{
FetchInfo(h, cmsInfoDescription);
FetchInfo(h, cmsInfoManufacturer);
FetchInfo(h, cmsInfoModel);
FetchInfo(h, cmsInfoCopyright);
}
// Read all LUTs, which some may be missing
static
void ReadAllLUTS(cmsHPROFILE h)
{
cmsPipeline* a;
cmsCIEXYZ Black;
a = _cmsReadInputLUT(h, INTENT_PERCEPTUAL);
if (a) cmsPipelineFree(a);
a = _cmsReadInputLUT(h, INTENT_RELATIVE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadInputLUT(h, INTENT_SATURATION);
if (a) cmsPipelineFree(a);
a = _cmsReadInputLUT(h, INTENT_ABSOLUTE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_PERCEPTUAL);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_RELATIVE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_SATURATION);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_ABSOLUTE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_PERCEPTUAL);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_RELATIVE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_SATURATION);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_ABSOLUTE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_PERCEPTUAL, 0);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_SATURATION, 0);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_ABSOLUTE_COLORIMETRIC, 0);
cmsDetectTAC(h);
}
// Create PostScript resources
static
void GenerateCSA(cmsHPROFILE hProfile)
{
cmsUInt32Number n;
char* Buffer;
n = cmsGetPostScriptCSA(0, hProfile, 0, 0, NULL, 0);
if (n == 0) return;
Buffer = (char*)_cmsMalloc(0, n);
cmsGetPostScriptCSA(0, hProfile, 0, 0, Buffer, n);
_cmsFree(0, Buffer);
}
static
void GenerateCRD(cmsHPROFILE hProfile)
{
cmsUInt32Number n;
char* Buffer;
cmsUInt32Number dwFlags = 0;
n = cmsGetPostScriptCRD(0, hProfile, 0, dwFlags, NULL, 0);
if (n == 0) return;
Buffer = (char*)_cmsMalloc(0, n);
cmsGetPostScriptCRD(0, hProfile, 0, dwFlags, Buffer, n);
_cmsFree(0, Buffer);
}
// The fuzzer entry
int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t size)
{
cmsHPROFILE hProfile = cmsOpenProfileFromMem(Data, (cmsUInt32Number)size);
if (hProfile == NULL)
return 0;
ReadAllTags(hProfile);
ReadAllRAWTags(hProfile);
FetchAllInfos(hProfile);
ReadAllLUTS(hProfile);
GenerateCSA(hProfile);
GenerateCRD(hProfile);
cmsCloseProfile(hProfile);
return 0;
}
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