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notepad-plus-plus
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[BUG_FiXED] (Author: Andreas Jonsson) Fix a buffer overflow bug.

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git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@941 f5eea248-9336-0410-98b8-ebc06183d4e3
remotes/trunk
Don Ho 12 years ago
parent 2873d37901
commit 7ff4558165
7 changed files with 22 additions and 16 deletions
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4
PowerEditor/src/Notepad_plus.cpp
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@ -1756,7 +1756,7 @@ generic_string Notepad_plus::getMarkedLine(int ln)
int lineBegin = _pEditView->execute(SCI_POSITIONFROMLINE, ln); int lineBegin = _pEditView->execute(SCI_POSITIONFROMLINE, ln);
TCHAR * buf = new TCHAR[lineLen+1]; TCHAR * buf = new TCHAR[lineLen+1];
_pEditView->getGenericText(buf, lineBegin, lineBegin + lineLen); _pEditView->getGenericText(buf, lineLen + 1, lineBegin, lineBegin + lineLen);
generic_string line = buf; generic_string line = buf;
delete [] buf; delete [] buf;
@ -3235,7 +3235,7 @@ bool Notepad_plus::doBlockComment(comment_mode currCommentMode)
continue; continue;
lineIndent = _pEditView->execute(SCI_GETLINEINDENTPOSITION, i); lineIndent = _pEditView->execute(SCI_GETLINEINDENTPOSITION, i);
_pEditView->getGenericText(linebuf, lineIndent, lineEnd); _pEditView->getGenericText(linebuf, linebufferSize, lineIndent, lineEnd);
generic_string linebufStr = linebuf; generic_string linebufStr = linebuf;

9
PowerEditor/src/NppNotification.cpp
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@ -603,8 +603,13 @@ BOOL Notepad_plus::notify(SCNotification *notification)
endPos = int(notifyView->execute(SCI_GETTARGETEND)); endPos = int(notifyView->execute(SCI_GETTARGETEND));
} }
TCHAR currentWord[MAX_PATH*2]; // Prevent buffer overflow in getGenericText().
notifyView->getGenericText(currentWord, startPos, endPos); if(endPos - startPos > 2*MAX_PATH)
endPos = startPos + 2*MAX_PATH;
TCHAR currentWord[2*MAX_PATH];
notifyView->getGenericText(currentWord, MAX_PATH*2, startPos, endPos);
::ShellExecute(_pPublicInterface->getHSelf(), TEXT("open"), currentWord, NULL, NULL, SW_SHOW); ::ShellExecute(_pPublicInterface->getHSelf(), TEXT("open"), currentWord, NULL, NULL, SW_SHOW);
_isHotspotDblClicked = true; _isHotspotDblClicked = true;

4
PowerEditor/src/ScitillaComponent/AutoCompletion.cpp
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@ -91,7 +91,7 @@ bool AutoCompletion::showWordComplete(bool autoInsert)
TCHAR beginChars[bufSize]; TCHAR beginChars[bufSize];
_pEditView->getGenericText(beginChars, startPos, curPos); _pEditView->getGenericText(beginChars, bufSize, startPos, curPos);
generic_string expr(TEXT("\\<")); generic_string expr(TEXT("\\<"));
expr += beginChars; expr += beginChars;
@ -115,7 +115,7 @@ bool AutoCompletion::showWordComplete(bool autoInsert)
if (foundTextLen < bufSize) if (foundTextLen < bufSize)
{ {
TCHAR w[bufSize]; TCHAR w[bufSize];
_pEditView->getGenericText(w, wordStart, wordEnd); _pEditView->getGenericText(w, bufSize, wordStart, wordEnd);
if (lstrcmp(w, beginChars) != 0) if (lstrcmp(w, beginChars) != 0)
if (!isInList(w, wordArray)) if (!isInList(w, wordArray))

2
PowerEditor/src/ScitillaComponent/FindReplaceDlg.cpp
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@ -1580,7 +1580,7 @@ int FindReplaceDlg::processRange(ProcessOperation op, const TCHAR *txt2find, con
int start_mark = targetStart - lstart; int start_mark = targetStart - lstart;
int end_mark = targetEnd - lstart; int end_mark = targetEnd - lstart;
(*_ppEditView)->getGenericText(lineBuf, lstart, lend, &start_mark, &end_mark); (*_ppEditView)->getGenericText(lineBuf, 1024, lstart, lend, &start_mark, &end_mark);
generic_string line; generic_string line;
#ifdef UNICODE #ifdef UNICODE
line = lineBuf; line = lineBuf;

9
PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp
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@ -29,6 +29,7 @@
#include "precompiledHeaders.h" #include "precompiledHeaders.h"
#include "ScintillaEditView.h" #include "ScintillaEditView.h"
#include "Parameters.h" #include "Parameters.h"
#include "TCHAR.h"
// initialize the static variable // initialize the static variable
@ -1680,7 +1681,7 @@ void ScintillaEditView::getText(char *dest, int start, int end) const
execute(SCI_GETTEXTRANGE, 0, reinterpret_cast<LPARAM>(&tr)); execute(SCI_GETTEXTRANGE, 0, reinterpret_cast<LPARAM>(&tr));
} }
void ScintillaEditView::getGenericText(TCHAR *dest, int start, int end) const void ScintillaEditView::getGenericText(TCHAR *dest, size_t destlen, int start, int end) const
{ {
#ifdef UNICODE #ifdef UNICODE
WcharMbcsConvertor *wmc = WcharMbcsConvertor::getInstance(); WcharMbcsConvertor *wmc = WcharMbcsConvertor::getInstance();
@ -1688,7 +1689,7 @@ void ScintillaEditView::getGenericText(TCHAR *dest, int start, int end) const
getText(destA, start, end); getText(destA, start, end);
unsigned int cp = execute(SCI_GETCODEPAGE); unsigned int cp = execute(SCI_GETCODEPAGE);
const TCHAR *destW = wmc->char2wchar(destA, cp); const TCHAR *destW = wmc->char2wchar(destA, cp);
lstrcpy(dest, destW); _tcsncpy_s(dest, destlen, destW, _TRUNCATE);
delete [] destA; delete [] destA;
#else #else
getText(dest, start, end); getText(dest, start, end);
@ -1699,14 +1700,14 @@ void ScintillaEditView::getGenericText(TCHAR *dest, int start, int end) const
// which are converted to the corresponding indexes in the returned TCHAR string. // which are converted to the corresponding indexes in the returned TCHAR string.
#ifdef UNICODE #ifdef UNICODE
void ScintillaEditView::getGenericText(TCHAR *dest, int start, int end, int *mstart, int *mend) const void ScintillaEditView::getGenericText(TCHAR *dest, size_t destlen, int start, int end, int *mstart, int *mend) const
{ {
WcharMbcsConvertor *wmc = WcharMbcsConvertor::getInstance(); WcharMbcsConvertor *wmc = WcharMbcsConvertor::getInstance();
char *destA = new char[end - start + 1]; char *destA = new char[end - start + 1];
getText(destA, start, end); getText(destA, start, end);
unsigned int cp = execute(SCI_GETCODEPAGE); unsigned int cp = execute(SCI_GETCODEPAGE);
const TCHAR *destW = wmc->char2wchar(destA, cp, mstart, mend); const TCHAR *destW = wmc->char2wchar(destA, cp, mstart, mend);
lstrcpy(dest, destW); _tcsncpy_s(dest, destlen, destW, _TRUNCATE);
delete [] destA; delete [] destA;
} }
#else #else

6
PowerEditor/src/ScitillaComponent/ScintillaEditView.h
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@ -246,8 +246,8 @@ public:
void syncFoldStateWith(const std::vector<HeaderLineState> & lineStateVectorNew); void syncFoldStateWith(const std::vector<HeaderLineState> & lineStateVectorNew);
void getText(char *dest, int start, int end) const; void getText(char *dest, int start, int end) const;
void getGenericText(TCHAR *dest, int start, int end) const; void getGenericText(TCHAR *dest, size_t destlen, int start, int end) const;
void getGenericText(TCHAR *dest, int start, int end, int *mstart, int *mend) const; void getGenericText(TCHAR *dest, size_t deslen, int start, int end, int *mstart, int *mend) const;
void insertGenericTextFrom(int position, const TCHAR *text2insert) const; void insertGenericTextFrom(int position, const TCHAR *text2insert) const;
void replaceSelWith(const char * replaceText); void replaceSelWith(const char * replaceText);
@ -295,7 +295,7 @@ public:
str[0] = '\0'; str[0] = '\0';
if ((caretPos - startPos) < strLen) if ((caretPos - startPos) < strLen)
getGenericText(str, startPos, caretPos); getGenericText(str, strLen, startPos, caretPos);
}; };
void doUserDefineDlg(bool willBeShown = true, bool isRTL = false) { void doUserDefineDlg(bool willBeShown = true, bool isRTL = false) {

4
PowerEditor/src/ScitillaComponent/columnEditor.cpp
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@ -112,7 +112,7 @@ BOOL CALLBACK ColumnEditorDlg::run_dlgProc(UINT message, WPARAM wParam, LPARAM)
delete [] line; delete [] line;
line = new TCHAR[lineLen]; line = new TCHAR[lineLen];
} }
(*_ppEditView)->getGenericText(line, lineBegin, lineEnd); (*_ppEditView)->getGenericText(line, lineLen, lineBegin, lineEnd);
generic_string s2r(line); generic_string s2r(line);
if (lineEndCol < cursorCol) if (lineEndCol < cursorCol)
@ -190,7 +190,7 @@ BOOL CALLBACK ColumnEditorDlg::run_dlgProc(UINT message, WPARAM wParam, LPARAM)
delete [] line; delete [] line;
line = new TCHAR[lineLen]; line = new TCHAR[lineLen];
} }
(*_ppEditView)->getGenericText(line, lineBegin, lineEnd); (*_ppEditView)->getGenericText(line, lineLen, lineBegin, lineEnd);
generic_string s2r(line); generic_string s2r(line);
// //

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