Resolves: rhbz#423211 fix malalayam stuff in light of syllable changes

This commit is contained in:
Caolan McNamara 2008-01-25 13:12:10 +00:00
parent cf1ab4d255
commit 72806f5d3d
3 changed files with 556 additions and 4 deletions

View File

@ -167,12 +167,12 @@ diff -ruN icu.orig/source/layout/MalayalamLayoutEngine.cpp icu/source/layout/Mal
+ le_int32 prev = 0;
+ while (prev < count)
+ {
+ le_int32 outCharCount=0, fakeGlyphCount=0;
+ le_int32 outCharCount=0, fakeGlyphCount=0,fSyllableCount=0;
+ LEUnicode *outChars = NULL;
+ LEGlyphStorage fakeGlyphStorage;
+
+ le_int32 syllable = IndicReordering::findSyllable(classTable, chars+offset, prev, count);
+ outCharCount = characterProcessing(chars+prev, offset, syllable-prev, max, rightToLeft, outChars, fakeGlyphStorage, success);
+ outCharCount = characterProcessing(chars+prev, offset, syllable-prev, max, rightToLeft, outChars, fakeGlyphStorage, success, ++fSyllableCount);
+
+ if (LE_FAILURE(success)) {
+ return 0;
@ -258,3 +258,247 @@ diff -ru icu.orig/source/layout/MalayalamLayoutEngine.cpp icu/source/layout/Mala
if (!from.fGlyphCount)
return;
diff -ru icu/source/layout/ArabicLayoutEngine.cpp icu.works/source/layout/ArabicLayoutEngine.cpp
--- icu.orig/source/layout/ArabicLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/ArabicLayoutEngine.cpp 2008-01-25 12:19:42.000000000 +0000
@@ -64,7 +64,7 @@
// Output: characters, char indices, tags
// Returns: output character count
le_int32 ArabicOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/ArabicLayoutEngine.h icu.works/source/layout/ArabicLayoutEngine.h
--- icu.orig/source/layout/ArabicLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/ArabicLayoutEngine.h 2008-01-25 12:20:14.000000000 +0000
@@ -112,7 +112,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount);
/**
* This method applies the GPOS table if it is present, otherwise it ensures that all vowel
diff -ru icu/source/layout/HangulLayoutEngine.cpp icu.works/source/layout/HangulLayoutEngine.cpp
--- icu.orig/source/layout/HangulLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/HangulLayoutEngine.cpp 2008-01-25 12:20:38.000000000 +0000
@@ -207,7 +207,7 @@
}
le_int32 HangulOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/HangulLayoutEngine.h icu.works/source/layout/HangulLayoutEngine.h
--- icu.orig/source/layout/HangulLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/HangulLayoutEngine.h 2008-01-25 12:21:15.000000000 +0000
@@ -117,7 +117,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount=0);
};
U_NAMESPACE_END
diff -ru icu/source/layout/HanLayoutEngine.cpp icu.works/source/layout/HanLayoutEngine.cpp
--- icu.orig/source/layout/HanLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/HanLayoutEngine.cpp 2008-01-25 12:21:25.000000000 +0000
@@ -52,7 +52,7 @@
}
le_int32 HanOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool /*rightToLeft*/,
- LEUnicode *&/*outChars*/, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&/*outChars*/, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/HanLayoutEngine.h icu.works/source/layout/HanLayoutEngine.h
--- icu.orig/source/layout/HanLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/HanLayoutEngine.h 2008-01-25 12:21:32.000000000 +0000
@@ -96,7 +96,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount=0);
};
diff -ru icu/source/layout/IndicLayoutEngine.cpp icu.works/source/layout/IndicLayoutEngine.cpp
--- icu.orig/source/layout/IndicLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/IndicLayoutEngine.cpp 2008-01-25 12:13:41.000000000 +0000
@@ -75,7 +75,7 @@
// Output: characters, char indices, tags
// Returns: output character count
le_int32 IndicOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount)
{
if (LE_FAILURE(success)) {
return 0;
@@ -105,7 +105,7 @@
// NOTE: assumes this allocates featureTags...
// (probably better than doing the worst case stuff here...)
- le_int32 outCharCount = IndicReordering::reorder(&chars[offset], count, fScriptCode, outChars, glyphStorage, &fMPreFixups);
+ le_int32 outCharCount = IndicReordering::reorder(&chars[offset], count, fScriptCode, outChars, glyphStorage, &fMPreFixups, fSyllableCount);
glyphStorage.adoptGlyphCount(outCharCount);
return outCharCount;
diff -ru icu/source/layout/IndicLayoutEngine.h icu.works/source/layout/IndicLayoutEngine.h
--- icu.orig/source/layout/IndicLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/IndicLayoutEngine.h 2008-01-25 12:13:12.000000000 +0000
@@ -119,7 +119,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount = 0);
/**
* This method does character to glyph mapping, applies the GSUB table and applies
diff -ru icu/source/layout/IndicReordering.cpp icu.works/source/layout/IndicReordering.cpp
--- icu.orig/source/layout/IndicReordering.cpp 2008-01-25 12:23:56.000000000 +0000
+++ icu/source/layout/IndicReordering.cpp 2008-01-25 12:15:32.000000000 +0000
@@ -138,8 +138,8 @@
}
public:
- IndicReorderingOutput(LEUnicode *outChars, LEGlyphStorage &glyphStorage, MPreFixups *mpreFixups)
- : fSyllableCount(0), fOutIndex(0), fOutChars(outChars), fGlyphStorage(glyphStorage),
+ IndicReorderingOutput(LEUnicode *outChars, LEGlyphStorage &glyphStorage, MPreFixups *mpreFixups,le_int32 fSyllableCount_)
+ : fSyllableCount(fSyllableCount_), fOutIndex(0), fOutChars(outChars), fGlyphStorage(glyphStorage),
fMpre(0), fMpreIndex(0), fMbelow(0), fMbelowIndex(0), fMabove(0), fMaboveIndex(0),
fMpost(0), fMpostIndex(0), fLengthMark(0), fLengthMarkIndex(0), fVirama(0), fViramaIndex(0),
fMatraFeatures(0), fMPreOutIndex(-1), fMPreFixups(mpreFixups),
@@ -480,7 +480,7 @@
le_int32 IndicReordering::reorder(const LEUnicode *chars, le_int32 charCount, le_int32 scriptCode,
LEUnicode *outChars, LEGlyphStorage &glyphStorage,
- MPreFixups **outMPreFixups)
+ MPreFixups **outMPreFixups, le_int32 fSyllableCount)
{
MPreFixups *mpreFixups = NULL;
const IndicClassTable *classTable = IndicClassTable::getScriptClassTable(scriptCode);
@@ -489,7 +489,7 @@
mpreFixups = new MPreFixups(charCount);
}
- IndicReorderingOutput output(outChars, glyphStorage, mpreFixups);
+ IndicReorderingOutput output(outChars, glyphStorage, mpreFixups, fSyllableCount);
le_int32 i, prev = 0;
le_bool lastInWord = FALSE;
diff -ru icu/source/layout/IndicReordering.h icu.works/source/layout/IndicReordering.h
--- icu.orig/source/layout/IndicReordering.h 2008-01-25 12:23:56.000000000 +0000
+++ icu/source/layout/IndicReordering.h 2008-01-25 12:13:59.000000000 +0000
@@ -132,7 +132,7 @@
static le_int32 reorder(const LEUnicode *theChars, le_int32 charCount, le_int32 scriptCode,
LEUnicode *outChars, LEGlyphStorage &glyphStorage,
- MPreFixups **outMPreFixups);
+ MPreFixups **outMPreFixups, le_int32 fSyllableCount = 0);
static void adjustMPres(MPreFixups *mpreFixups, LEGlyphStorage &glyphStorage);
diff -ru icu/source/layout/KhmerLayoutEngine.cpp icu.works/source/layout/KhmerLayoutEngine.cpp
--- icu.orig/source/layout/KhmerLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/KhmerLayoutEngine.cpp 2008-01-25 12:21:48.000000000 +0000
@@ -42,7 +42,7 @@
// Output: characters, char indices, tags
// Returns: output character count
le_int32 KhmerOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/KhmerLayoutEngine.h icu.works/source/layout/KhmerLayoutEngine.h
--- icu.orig/source/layout/KhmerLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/KhmerLayoutEngine.h 2008-01-25 12:21:56.000000000 +0000
@@ -120,7 +120,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount=0);
};
diff -ru icu/source/layout/LayoutEngine.cpp icu.works/source/layout/LayoutEngine.cpp
--- icu.orig/source/layout/LayoutEngine.cpp 2008-01-25 12:23:56.000000000 +0000
+++ icu/source/layout/LayoutEngine.cpp 2008-01-25 12:22:05.000000000 +0000
@@ -180,7 +180,7 @@
}
le_int32 LayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &/*glyphStorage*/, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &/*glyphStorage*/, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/LayoutEngine.h icu.works/source/layout/LayoutEngine.h
--- icu.orig/source/layout/LayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/LayoutEngine.h 2008-01-25 12:22:14.000000000 +0000
@@ -164,7 +164,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount=0);
/**
* This method does the glyph processing. It converts an array of characters
diff -ru icu/source/layout/OpenTypeLayoutEngine.cpp icu.works/source/layout/OpenTypeLayoutEngine.cpp
--- icu.orig/source/layout/OpenTypeLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/OpenTypeLayoutEngine.cpp 2008-01-25 12:22:32.000000000 +0000
@@ -149,7 +149,7 @@
}
le_int32 OpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/OpenTypeLayoutEngine.h icu.works/source/layout/OpenTypeLayoutEngine.h
--- icu.orig/source/layout/OpenTypeLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/OpenTypeLayoutEngine.h 2008-01-25 12:22:39.000000000 +0000
@@ -247,7 +247,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode /*chars*/[], le_int32 offset, le_int32 count, le_int32 max, le_bool /*rightToLeft*/,
- LEUnicode *&/*outChars*/, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&/*outChars*/, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount=0);
/**
* This method does character to glyph mapping, and applies the GSUB table. The
diff -ru icu/source/layout/TibetanLayoutEngine.cpp icu.works/source/layout/TibetanLayoutEngine.cpp
--- icu.orig/source/layout/TibetanLayoutEngine.cpp 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/TibetanLayoutEngine.cpp 2008-01-25 12:22:52.000000000 +0000
@@ -48,7 +48,7 @@
// Output: characters, char indices, tags
// Returns: output character count
le_int32 TibetanOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32)
{
if (LE_FAILURE(success)) {
return 0;
diff -ru icu/source/layout/TibetanLayoutEngine.h icu.works/source/layout/TibetanLayoutEngine.h
--- icu.orig/source/layout/TibetanLayoutEngine.h 2007-12-12 18:58:06.000000000 +0000
+++ icu/source/layout/TibetanLayoutEngine.h 2008-01-25 12:22:59.000000000 +0000
@@ -120,7 +120,7 @@
* @internal
*/
virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
- LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success);
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success, le_int32 fSyllableCount=0);
};

301
icu.regexp.patch Normal file
View File

@ -0,0 +1,301 @@
Index: source/i18n/regexcmp.cpp
===================================================================
--- source/i18n/regexcmp.cpp (revision 23291)
+++ source/i18n/regexcmp.cpp (revision 23292)
@@ -1186,14 +1186,17 @@
// Because capture groups can be forward-referenced by back-references,
// we fill the operand with the capture group number. At the end
// of compilation, it will be changed to the variable's location.
- U_ASSERT(groupNum > 0);
- int32_t op;
- if (fModeFlags & UREGEX_CASE_INSENSITIVE) {
- op = URX_BUILD(URX_BACKREF_I, groupNum);
+ if (groupNum < 1) {
+ error(U_REGEX_INVALID_BACK_REF);
} else {
- op = URX_BUILD(URX_BACKREF, groupNum);
+ int32_t op;
+ if (fModeFlags & UREGEX_CASE_INSENSITIVE) {
+ op = URX_BUILD(URX_BACKREF_I, groupNum);
+ } else {
+ op = URX_BUILD(URX_BACKREF, groupNum);
+ }
+ fRXPat->fCompiledPat->addElement(op, *fStatus);
}
- fRXPat->fCompiledPat->addElement(op, *fStatus);
}
break;
Index: source/i18n/rematch.cpp
===================================================================
--- source/i18n/rematch.cpp (revision 23291)
+++ source/i18n/rematch.cpp (revision 23292)
@@ -30,6 +30,15 @@
U_NAMESPACE_BEGIN
+// Limit the size of the back track stack, to avoid system failures caused
+// by heap exhaustion. Units are in 32 bit words, not bytes.
+// This value puts ICU's limits higher than most other regexp implementations,
+// which use recursion rather than the heap, and take more storage per
+// backtrack point.
+// This constant is _temporary_. Proper API to control the value will added.
+//
+static const int32_t BACKTRACK_STACK_CAPACITY = 8000000;
+
//-----------------------------------------------------------------------------
//
// Constructor and Destructor
@@ -53,8 +62,9 @@
}
if (fStack == NULL || fData == NULL) {
fDeferredStatus = U_MEMORY_ALLOCATION_ERROR;
+ } else {
+ fStack->setMaxCapacity(BACKTRACK_STACK_CAPACITY);
}
-
reset(RegexStaticSets::gStaticSets->fEmptyString);
}
@@ -78,6 +88,8 @@
}
if (fStack == NULL || fData == NULL) {
status = U_MEMORY_ALLOCATION_ERROR;
+ } else {
+ fStack->setMaxCapacity(BACKTRACK_STACK_CAPACITY);
}
reset(input);
}
@@ -102,6 +114,8 @@
}
if (fStack == NULL || fData == NULL) {
status = U_MEMORY_ALLOCATION_ERROR;
+ } else {
+ fStack->setMaxCapacity(BACKTRACK_STACK_CAPACITY);
}
reset(RegexStaticSets::gStaticSets->fEmptyString);
}
@@ -1014,6 +1028,14 @@
inline REStackFrame *RegexMatcher::StateSave(REStackFrame *fp, int32_t savePatIdx, int32_t frameSize, UErrorCode &status) {
// push storage for a new frame.
int32_t *newFP = fStack->reserveBlock(frameSize, status);
+ if (newFP == NULL) {
+ // Heap allocation error on attempted stack expansion.
+ // We need to return a writable stack frame, so just return the
+ // previous frame. The match operation will stop quickly
+ // becuase of the error status, after which the frame will never
+ // be looked at again.
+ return fp;
+ }
fp = (REStackFrame *)(newFP - frameSize); // in case of realloc of stack.
// New stack frame = copy of old top frame.
@@ -1029,8 +1051,8 @@
fp->fPatIdx = savePatIdx;
return (REStackFrame *)newFP;
}
-
-
+
+
//--------------------------------------------------------------------------------
//
// MatchAt This is the actual matching engine.
@@ -2261,6 +2283,7 @@
}
if (U_FAILURE(status)) {
+ isMatch = FALSE;
break;
}
}
Index: source/test/intltest/regextst.h
===================================================================
--- source/test/intltest/regextst.h (revision 23291)
+++ source/test/intltest/regextst.h (revision 23292)
@@ -30,6 +30,7 @@
virtual void Extended();
virtual void Errors();
virtual void PerlTests();
+ virtual void Bug6149();
// The following functions are internal to the regexp tests.
virtual UBool doRegexLMTest(const char *pat, const char *text, UBool looking, UBool match, int32_t line);
Index: source/test/intltest/regextst.cpp
===================================================================
--- source/test/intltest/regextst.cpp (revision 23291)
+++ source/test/intltest/regextst.cpp (revision 23292)
@@ -66,6 +66,10 @@
case 6: name = "PerlTests";
if (exec) PerlTests();
break;
+ case 7: name = "Bug 6149";
+ if (exec) Bug6149();
+ break;
+
default: name = "";
@@ -1639,6 +1643,12 @@
// Ticket 5389
REGEX_ERR("*c", 1, 1, U_REGEX_RULE_SYNTAX);
+
+ // Invalid Back Reference \0
+ // For ICU 3.8 and earlier
+ // For ICU versions newer than 3.8, \0 introduces an octal escape.
+ //
+ REGEX_ERR("(ab)\\0", 1, 6, U_REGEX_INVALID_BACK_REF);
}
@@ -2122,6 +2132,26 @@
}
+//--------------------------------------------------------------
+//
+// Bug6149 Verify limits to heap expansion for backtrack stack.
+// Use this pattern,
+// "(a?){1,}"
+// The zero-length match will repeat forever.
+// (That this goes into a loop is another bug)
+//
+//---------------------------------------------------------------
+void RegexTest::Bug6149() {
+ UnicodeString pattern("(a?){1,}");
+ UnicodeString s("xyz");
+ uint32_t flags = 0;
+ UErrorCode status = U_ZERO_ERROR;
+
+ RegexMatcher matcher(pattern, s, flags, status);
+ UBool result = false;
+ REGEX_ASSERT_FAIL(result=matcher.matches(status), U_BUFFER_OVERFLOW_ERROR);
+ REGEX_ASSERT(result == FALSE);
+ }
#endif /* !UCONFIG_NO_REGULAR_EXPRESSIONS */
Index: source/common/uvectr32.cpp
===================================================================
--- source/common/uvectr32.cpp (revision 23291)
+++ source/common/uvectr32.cpp (revision 23292)
@@ -26,6 +26,7 @@
UVector32::UVector32(UErrorCode &status) :
count(0),
capacity(0),
+ maxCapacity(0),
elements(NULL)
{
_init(DEFUALT_CAPACITY, status);
@@ -34,6 +35,7 @@
UVector32::UVector32(int32_t initialCapacity, UErrorCode &status) :
count(0),
capacity(0),
+ maxCapacity(0),
elements(0)
{
_init(initialCapacity, status);
@@ -46,6 +48,9 @@
if (initialCapacity < 1) {
initialCapacity = DEFUALT_CAPACITY;
}
+ if (maxCapacity>0 && maxCapacity<initialCapacity) {
+ initialCapacity = maxCapacity;
+ }
elements = (int32_t *)uprv_malloc(sizeof(int32_t)*initialCapacity);
if (elements == 0) {
status = U_MEMORY_ALLOCATION_ERROR;
@@ -189,24 +194,38 @@
UBool UVector32::expandCapacity(int32_t minimumCapacity, UErrorCode &status) {
if (capacity >= minimumCapacity) {
return TRUE;
- } else {
- int32_t newCap = capacity * 2;
- if (newCap < minimumCapacity) {
- newCap = minimumCapacity;
- }
- int32_t* newElems = (int32_t *)uprv_malloc(sizeof(int32_t)*newCap);
- if (newElems == 0) {
- status = U_MEMORY_ALLOCATION_ERROR;
- return FALSE;
- }
- uprv_memcpy(newElems, elements, sizeof(elements[0]) * count);
- uprv_free(elements);
- elements = newElems;
- capacity = newCap;
- return TRUE;
}
+ if (maxCapacity>0 && minimumCapacity>maxCapacity) {
+ status = U_BUFFER_OVERFLOW_ERROR;
+ return FALSE;
+ }
+ int32_t newCap = capacity * 2;
+ if (newCap < minimumCapacity) {
+ newCap = minimumCapacity;
+ }
+ if (maxCapacity > 0 && newCap > maxCapacity) {
+ newCap = maxCapacity;
+ }
+ int32_t* newElems = (int32_t *)uprv_malloc(sizeof(int32_t)*newCap);
+ if (newElems == 0) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FALSE;
+ }
+ uprv_memcpy(newElems, elements, sizeof(elements[0]) * count);
+ uprv_free(elements);
+ elements = newElems;
+ capacity = newCap;
+ return TRUE;
}
+void UVector32::setMaxCapacity(int32_t limit) {
+ U_ASSERT(limit >= 0);
+ maxCapacity = limit;
+ if (maxCapacity < 0) {
+ maxCapacity = 0;
+ }
+}
+
/**
* Change the size of this vector as follows: If newSize is smaller,
* then truncate the array, possibly deleting held elements for i >=
Index: source/common/uvectr32.h
===================================================================
--- source/common/uvectr32.h (revision 23291)
+++ source/common/uvectr32.h (revision 23292)
@@ -61,6 +61,8 @@
int32_t count;
int32_t capacity;
+
+ int32_t maxCapacity; // Limit beyond which capacity is not permitted to grow.
int32_t* elements;
@@ -162,6 +164,14 @@
int32_t *getBuffer() const;
/**
+ * Set the maximum allowed buffer capacity for this vector/stack.
+ * Default with no limit set is unlimited, go until malloc() fails.
+ * A Limit of zero means unlimited capacity.
+ * Units are vector elements (32 bits each), not bytes.
+ */
+ void setMaxCapacity(int32_t limit);
+
+ /**
* ICU "poor man's RTTI", returns a UClassID for this class.
*/
static UClassID U_EXPORT2 getStaticClassID();
@@ -221,7 +231,9 @@
}
inline int32_t *UVector32::reserveBlock(int32_t size, UErrorCode &status) {
- ensureCapacity(count+size, status);
+ if (ensureCapacity(count+size, status) == FALSE) {
+ return NULL;
+ }
int32_t *rp = elements+count;
count += size;
return rp;

View File

@ -1,6 +1,6 @@
Name: icu
Version: 3.8.1
Release: 2%{?dist}
Release: 3%{?dist}
Summary: International Components for Unicode
Group: Development/Tools
License: MIT
@ -17,8 +17,9 @@ Patch5: icu.icuXXXX.virama.prevnext.patch
Patch6: icu.icu5557.safety.patch
Patch7: icu.icu5506.multiplevowels.patch
Patch8: icu.icuXXXX.malayalam.bysyllable.patch
Patch9: icu.icu6008.arm.padding.patch
Patch9: icu.icu6008.arm.padding.patch
Patch10: icu.icu5498.openoffice.org.patch
Patch11: icu.regexp.patch
%description
Tools and utilities for developing with icu.
@ -66,6 +67,7 @@ Group: Documentation
%patch8 -p1 -b .icuXXXX.malayalam.bysyllable.patch
%patch9 -p1 -b .icu6008.arm.padding.patch
%patch10 -p1 -b .icu5498.openoffice.org.patch
%patch11 -p0 -b .regexp.patch
%build
cd source
@ -143,6 +145,11 @@ rm -rf $RPM_BUILD_ROOT
%doc source/__docs/%{name}/html/*
%changelog
* Fri Jan 25 2008 Caolan McNamara <caolanm@redhat.com> - 3.8.1-3
- CVE-2007-4770 CVE-2007-4771 add icu.regexp.patch
- Resolves: rhbz#423211 fix malalayam stuff in light of syllable
changes
* Fri Jan 11 2008 Caolan McNamara <caolanm@redhat.com> - 3.8.1-2
- remove icu.icu5365.dependantvowels.patch and cleanup
icu.icu5506.multiplevowels.patch as they patch and unpatch