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authorNicolas Pena <npm@chromium.org>2017-08-14 10:36:01 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-08-14 15:02:17 +0000
commit0bd847232a1f430c70dd9d8df177ce68a3cde010 (patch)
tree15cec8c11493549f1974ae2f6aeac58234c176d2 /third_party/lcms/src/cmserr.c
parentdff02cee2d2410d81a55c59345fb38b5aac8a457 (diff)
downloadpdfium-0bd847232a1f430c70dd9d8df177ce68a3cde010.tar.xz
LCMS: upgrade to 2.8
This CL upgrades LCMS from version 2.6 to 2.8. All changes from LCMS original version 2.8 are stored in patch files: - Patch 0: memory management modifications to use PDFium methods. This was previously not in any patch, so the changes were manually applied. - Patches 1-5: new patch files corresponding to old changes that can be seen in the history, but did not previously have patch files. - Patches 6-25: previous patches (patch numbers shifted by 6). The one for from16-to-8-overflow.patch was deleted as it was already upstream. Some patches did not apply cleanly so their .patch files were modified. - Patch 26: as I just moved files directly, unsupported characters were moved in unchanged, so I had to fix all of them: e with tilde and other characters were replaced to allow compilation on Windows. - Patch 27: Went over the code and re-applied changes that included comments clearly indicating this was Foxit. These changes are all already seen in the initial PDFium commit. Change-Id: Ic1d84e54803ef9e6b280ef7619bbf0b757312fbf Reviewed-on: https://pdfium-review.googlesource.com/10590 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'third_party/lcms/src/cmserr.c')
-rw-r--r--third_party/lcms/src/cmserr.c318
1 files changed, 65 insertions, 253 deletions
diff --git a/third_party/lcms/src/cmserr.c b/third_party/lcms/src/cmserr.c
index f9adc3824a..3c3848b2a2 100644
--- a/third_party/lcms/src/cmserr.c
+++ b/third_party/lcms/src/cmserr.c
@@ -1,7 +1,7 @@
//---------------------------------------------------------------------------------
//
// Little Color Management System
-// Copyright (c) 1998-2012 Marti Maria Saguer
+// Copyright (c) 1998-2016 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"),
@@ -25,6 +25,15 @@
#include "lcms2_internal.h"
+#include "core/fxcrt/fx_memory.h"
+#include "core/fxcrt/fx_system.h"
+
+// This function is here to help applications to prevent mixing lcms versions on header and shared objects.
+int CMSEXPORT cmsGetEncodedCMMversion(void)
+{
+ return LCMS_VERSION;
+}
+
// I am so tired about incompatibilities on those functions that here are some replacements
// that hopefully would be fully portable.
@@ -58,123 +67,59 @@ long int CMSEXPORT cmsfilelength(FILE* f)
return n;
}
-#if 0
-// Memory handling ------------------------------------------------------------------
-//
-// This is the interface to low-level memory management routines. By default a simple
-// wrapping to malloc/free/realloc is provided, although there is a limit on the max
-// amount of memoy that can be reclaimed. This is mostly as a safety feature to prevent
-// bogus or evil code to allocate huge blocks that otherwise lcms would never need.
-
-#define MAX_MEMORY_FOR_ALLOC ((cmsUInt32Number)(1024U*1024U*512U))
-
-// User may override this behaviour by using a memory plug-in, which basically replaces
-// the default memory management functions. In this case, no check is performed and it
-// is up to the plug-in writter to keep in the safe side. There are only three functions
-// required to be implemented: malloc, realloc and free, although the user may want to
-// replace the optional mallocZero, calloc and dup as well.
-
-cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin);
-
-// *********************************************************************************
-
-// This is the default memory allocation function. It does a very coarse
-// check of amout of memory, just to prevent exploits
-static
-void* _cmsMallocDefaultFn(cmsContext ContextID, cmsUInt32Number size)
+cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin)
{
- if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never allow over maximum
-
- return (void*) malloc(size);
+ return TRUE;
+}
- cmsUNUSED_PARAMETER(ContextID);
+// Generic allocate
+void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size)
+{
+ return FXMEM_DefaultAlloc(size, 1);
}
// Generic allocate & zero
-static
-void* _cmsMallocZeroDefaultFn(cmsContext ContextID, cmsUInt32Number size)
+void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size)
{
- void *pt = _cmsMalloc(ContextID, size);
- if (pt == NULL) return NULL;
-
- memset(pt, 0, size);
- return pt;
+ void* p = FXMEM_DefaultAlloc(size, 1);
+ if (p) memset(p, 0, size);
+ return p;
}
-
-// The default free function. The only check proformed is against NULL pointers
-static
-void _cmsFreeDefaultFn(cmsContext ContextID, void *Ptr)
+// Generic calloc
+void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
{
- // free(NULL) is defined a no-op by C99, therefore it is safe to
- // avoid the check, but it is here just in case...
-
- if (Ptr) free(Ptr);
+ cmsUInt32Number total = num * size;
+ if (total == 0 || total / size != num || total >= 512 * 1024 * 1024)
+ return NULL;
- cmsUNUSED_PARAMETER(ContextID);
+ return _cmsMallocZero(ContextID, num * size);
}
-// The default realloc function. Again it checks for exploits. If Ptr is NULL,
-// realloc behaves the same way as malloc and allocates a new block of size bytes.
-static
-void* _cmsReallocDefaultFn(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
+// Generic reallocate
+void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
{
-
- if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never realloc over 512Mb
-
- return realloc(Ptr, size);
-
- cmsUNUSED_PARAMETER(ContextID);
+ return FXMEM_DefaultRealloc(Ptr, size, 1);
}
-
-// The default calloc function. Allocates an array of num elements, each one of size bytes
-// all memory is initialized to zero.
-static
-void* _cmsCallocDefaultFn(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
+// Generic free memory
+void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr)
{
- cmsUInt32Number Total = num * size;
-
- // Preserve calloc behaviour
- if (Total == 0) return NULL;
-
- // Safe check for overflow.
- if (num >= UINT_MAX / size) return NULL;
-
- // Check for overflow
- if (Total < num || Total < size) {
- return NULL;
- }
-
- if (Total > MAX_MEMORY_FOR_ALLOC) return NULL; // Never alloc over 512Mb
-
- return _cmsMallocZero(ContextID, Total);
+ if (Ptr != NULL) FXMEM_DefaultFree(Ptr, 0);
}
// Generic block duplication
-static
-void* _cmsDupDefaultFn(cmsContext ContextID, const void* Org, cmsUInt32Number size)
+void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size)
{
- void* mem;
-
- if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never dup over 512Mb
-
- mem = _cmsMalloc(ContextID, size);
-
- if (mem != NULL && Org != NULL)
- memmove(mem, Org, size);
-
- return mem;
+ void* p = FXMEM_DefaultAlloc(size, 1);
+ memmove(p, Org, size);
+ return p;
}
-
-// Pointers to memory manager functions in Context0
-_cmsMemPluginChunkType _cmsMemPluginChunk = { _cmsMallocDefaultFn, _cmsMallocZeroDefaultFn, _cmsFreeDefaultFn,
- _cmsReallocDefaultFn, _cmsCallocDefaultFn, _cmsDupDefaultFn
+_cmsMemPluginChunkType _cmsMemPluginChunk = {_cmsMalloc, _cmsMallocZero, _cmsFree,
+ _cmsRealloc, _cmsCalloc, _cmsDupMem
};
-
-// Reset and duplicate memory manager
void _cmsAllocMemPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src)
{
_cmsAssert(ctx != NULL);
@@ -191,7 +136,6 @@ void _cmsAllocMemPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsCo
}
}
-// Auxiliar to fill memory management functions from plugin (or context 0 defaults)
void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkType* ptr)
{
if (Plugin == NULL) {
@@ -205,9 +149,9 @@ void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkTy
ptr ->ReallocPtr = Plugin -> ReallocPtr;
// Make sure we revert to defaults
- ptr ->MallocZeroPtr= _cmsMallocZeroDefaultFn;
- ptr ->CallocPtr = _cmsCallocDefaultFn;
- ptr ->DupPtr = _cmsDupDefaultFn;
+ ptr ->MallocZeroPtr= _cmsMallocZero;
+ ptr ->CallocPtr = _cmsCalloc;
+ ptr ->DupPtr = _cmsDupMem;
if (Plugin ->MallocZeroPtr != NULL) ptr ->MallocZeroPtr = Plugin -> MallocZeroPtr;
if (Plugin ->CallocPtr != NULL) ptr ->CallocPtr = Plugin -> CallocPtr;
@@ -216,138 +160,6 @@ void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkTy
}
}
-
-// Plug-in replacement entry
-cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase *Data)
-{
- cmsPluginMemHandler* Plugin = (cmsPluginMemHandler*) Data;
- _cmsMemPluginChunkType* ptr;
-
- // NULL forces to reset to defaults. In this special case, the defaults are stored in the context structure.
- // Remaining plug-ins does NOT have any copy in the context structure, but this is somehow special as the
- // context internal data should be malloce'd by using those functions.
- if (Data == NULL) {
-
- struct _cmsContext_struct* ctx = ( struct _cmsContext_struct*) ContextID;
-
- // Return to the default allocators
- if (ContextID != NULL) {
- ctx->chunks[MemPlugin] = (void*) &ctx->DefaultMemoryManager;
- }
- return TRUE;
- }
-
- // Check for required callbacks
- if (Plugin -> MallocPtr == NULL ||
- Plugin -> FreePtr == NULL ||
- Plugin -> ReallocPtr == NULL) return FALSE;
-
- // Set replacement functions
- ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
- if (ptr == NULL)
- return FALSE;
-
- _cmsInstallAllocFunctions(Plugin, ptr);
- return TRUE;
-}
-#else
-#include "core/fxcrt/fx_memory.h"
-#include "core/fxcrt/fx_system.h"
-
-cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin)
-{
- return TRUE;
-}
-
-// Generic allocate
-void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size)
-{
- return FXMEM_DefaultAlloc(size, 1);
-}
-
-// Generic allocate & zero
-void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size)
-{
- void* p = FXMEM_DefaultAlloc(size, 1);
- if (p) memset(p, 0, size);
- return p;
-}
-
-// Generic calloc
-void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
-{
- cmsUInt32Number total = num * size;
- if (total == 0 || total / size != num || total >= 512 * 1024 * 1024)
- return NULL;
-
- return _cmsMallocZero(ContextID, num * size);
-}
-
-// Generic reallocate
-void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
-{
- return FXMEM_DefaultRealloc(Ptr, size, 1);
-}
-
-// Generic free memory
-void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr)
-{
- if (Ptr != NULL) FXMEM_DefaultFree(Ptr, 0);
-}
-
-// Generic block duplication
-void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size)
-{
- void* p = FXMEM_DefaultAlloc(size, 1);
- memmove(p, Org, size);
- return p;
-}
-
-_cmsMemPluginChunkType _cmsMemPluginChunk = {_cmsMalloc, _cmsMallocZero, _cmsFree,
- _cmsRealloc, _cmsCalloc, _cmsDupMem
- };
-
-void _cmsAllocMemPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src)
-{
- _cmsAssert(ctx != NULL);
-
- if (src != NULL) {
-
- // Duplicate
- ctx ->chunks[MemPlugin] = _cmsSubAllocDup(ctx ->MemPool, src ->chunks[MemPlugin], sizeof(_cmsMemPluginChunkType));
- }
- else {
-
- // To reset it, we use the default allocators, which cannot be overriden
- ctx ->chunks[MemPlugin] = &ctx ->DefaultMemoryManager;
- }
-}
-
-void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkType* ptr)
-{
- if (Plugin == NULL) {
-
- memcpy(ptr, &_cmsMemPluginChunk, sizeof(_cmsMemPluginChunk));
- }
- else {
-
- ptr ->MallocPtr = Plugin -> MallocPtr;
- ptr ->FreePtr = Plugin -> FreePtr;
- ptr ->ReallocPtr = Plugin -> ReallocPtr;
-
- // Make sure we revert to defaults
- ptr ->MallocZeroPtr= _cmsMallocZero;
- ptr ->CallocPtr = _cmsCalloc;
- ptr ->DupPtr = _cmsDupMem;
-
- if (Plugin ->MallocZeroPtr != NULL) ptr ->MallocZeroPtr = Plugin -> MallocZeroPtr;
- if (Plugin ->CallocPtr != NULL) ptr ->CallocPtr = Plugin -> CallocPtr;
- if (Plugin ->DupPtr != NULL) ptr ->DupPtr = Plugin -> DupPtr;
-
- }
-}
-#endif
-
// ********************************************************************************************
// Sub allocation takes care of many pointers of small size. The memory allocated in
@@ -458,7 +270,7 @@ void* _cmsSubAlloc(_cmsSubAllocator* sub, cmsUInt32Number size)
void* _cmsSubAllocDup(_cmsSubAllocator* s, const void *ptr, cmsUInt32Number size)
{
void *NewPtr;
-
+
// Dup of null pointer is also NULL
if (ptr == NULL)
return NULL;
@@ -476,14 +288,14 @@ void* _cmsSubAllocDup(_cmsSubAllocator* s, const void *ptr, cmsUInt32Number size
// Error logging ******************************************************************
-// There is no error handling at all. When a funtion fails, it returns proper value.
+// There is no error handling at all. When a function fails, it returns proper value.
// For example, all create functions does return NULL on failure. Other return FALSE
// It may be interesting, for the developer, to know why the function is failing.
// for that reason, lcms2 does offer a logging function. This function does recive
// a ENGLISH string with some clues on what is going wrong. You can show this
// info to the end user, or just create some sort of log.
// The logging function should NOT terminate the program, as this obviously can leave
-// resources. It is the programmer's responsability to check each function return code
+// resources. It is the programmer's responsibility to check each function return code
// to make sure it didn't fail.
// Error messages are limited to MAX_ERROR_MESSAGE_LEN
@@ -500,20 +312,20 @@ _cmsLogErrorChunkType _cmsLogErrorChunk = { DefaultLogErrorHandlerFunction };
// Allocates and inits error logger container for a given context. If src is NULL, only initializes the value
// to the default. Otherwise, it duplicates the value. The interface is standard across all context clients
-void _cmsAllocLogErrorChunk(struct _cmsContext_struct* ctx,
+void _cmsAllocLogErrorChunk(struct _cmsContext_struct* ctx,
const struct _cmsContext_struct* src)
-{
+{
static _cmsLogErrorChunkType LogErrorChunk = { DefaultLogErrorHandlerFunction };
void* from;
-
+
if (src != NULL) {
- from = src ->chunks[Logger];
+ from = src ->chunks[Logger];
}
else {
from = &LogErrorChunk;
}
-
- ctx ->chunks[Logger] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsLogErrorChunkType));
+
+ ctx ->chunks[Logger] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsLogErrorChunkType));
}
// The default error logger does nothing.
@@ -545,7 +357,7 @@ void CMSEXPORT cmsSetLogErrorHandlerTHR(cmsContext ContextID, cmsLogErrorHandler
// Change log error, legacy
void CMSEXPORT cmsSetLogErrorHandler(cmsLogErrorHandlerFunction Fn)
{
- cmsSetLogErrorHandlerTHR(NULL, Fn);
+ cmsSetLogErrorHandlerTHR(NULL, Fn);
}
// Log an error
@@ -565,7 +377,7 @@ void CMSEXPORT cmsSignalError(cmsContext ContextID, cmsUInt32Number ErrorCode, c
lhg = (_cmsLogErrorChunkType*) _cmsContextGetClientChunk(ContextID, Logger);
if (lhg ->LogErrorHandler) {
lhg ->LogErrorHandler(ContextID, ErrorCode, Buffer);
- }
+ }
}
// Utility function to print signatures
@@ -591,13 +403,13 @@ void* defMtxCreate(cmsContext id)
{
_cmsMutex* ptr_mutex = (_cmsMutex*) _cmsMalloc(id, sizeof(_cmsMutex));
_cmsInitMutexPrimitive(ptr_mutex);
- return (void*) ptr_mutex;
+ return (void*) ptr_mutex;
}
static
void defMtxDestroy(cmsContext id, void* mtx)
{
- _cmsDestroyMutexPrimitive((_cmsMutex *) mtx);
+ _cmsDestroyMutexPrimitive((_cmsMutex *) mtx);
_cmsFree(id, mtx);
}
@@ -605,14 +417,14 @@ static
cmsBool defMtxLock(cmsContext id, void* mtx)
{
cmsUNUSED_PARAMETER(id);
- return _cmsLockPrimitive((_cmsMutex *) mtx) == 0;
+ return _cmsLockPrimitive((_cmsMutex *) mtx) == 0;
}
static
void defMtxUnlock(cmsContext id, void* mtx)
{
cmsUNUSED_PARAMETER(id);
- _cmsUnlockPrimitive((_cmsMutex *) mtx);
+ _cmsUnlockPrimitive((_cmsMutex *) mtx);
}
@@ -621,20 +433,20 @@ void defMtxUnlock(cmsContext id, void* mtx)
_cmsMutexPluginChunkType _cmsMutexPluginChunk = { defMtxCreate, defMtxDestroy, defMtxLock, defMtxUnlock };
// Allocate and init mutex container.
-void _cmsAllocMutexPluginChunk(struct _cmsContext_struct* ctx,
+void _cmsAllocMutexPluginChunk(struct _cmsContext_struct* ctx,
const struct _cmsContext_struct* src)
{
static _cmsMutexPluginChunkType MutexChunk = {defMtxCreate, defMtxDestroy, defMtxLock, defMtxUnlock };
void* from;
-
+
if (src != NULL) {
- from = src ->chunks[MutexPlugin];
+ from = src ->chunks[MutexPlugin];
}
else {
from = &MutexChunk;
}
-
- ctx ->chunks[MutexPlugin] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsMutexPluginChunkType));
+
+ ctx ->chunks[MutexPlugin] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsMutexPluginChunkType));
}
// Register new ways to transform
@@ -646,15 +458,15 @@ cmsBool _cmsRegisterMutexPlugin(cmsContext ContextID, cmsPluginBase* Data)
if (Data == NULL) {
// No lock routines
- ctx->CreateMutexPtr = NULL;
- ctx->DestroyMutexPtr = NULL;
+ ctx->CreateMutexPtr = NULL;
+ ctx->DestroyMutexPtr = NULL;
ctx->LockMutexPtr = NULL;
ctx ->UnlockMutexPtr = NULL;
return TRUE;
}
// Factory callback is required
- if (Plugin ->CreateMutexPtr == NULL || Plugin ->DestroyMutexPtr == NULL ||
+ if (Plugin ->CreateMutexPtr == NULL || Plugin ->DestroyMutexPtr == NULL ||
Plugin ->LockMutexPtr == NULL || Plugin ->UnlockMutexPtr == NULL) return FALSE;