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Avoid trouble in WM_GETTEXT if specified length is larger than the

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buffer (found by Carl Sopchak).
This commit is contained in:
Alexandre Julliard 2002-08-15 23:28:45 +00:00
parent ebd110bc6a
commit 331bf3d77c
1 changed files with 3 additions and 4 deletions
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5
controls/edit.c
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@ -3962,14 +3962,13 @@ static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode
if(unicode) if(unicode)
{ {
LPWSTR textW = (LPWSTR)lParam; LPWSTR textW = (LPWSTR)lParam;
strncpyW(textW, es->text, count); lstrcpynW(textW, es->text, count);
textW[count - 1] = 0; /* ensure 0 termination */
return strlenW(textW); return strlenW(textW);
} }
else else
{ {
LPSTR textA = (LPSTR)lParam; LPSTR textA = (LPSTR)lParam;
WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL); if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
textA[count - 1] = 0; /* ensure 0 termination */ textA[count - 1] = 0; /* ensure 0 termination */
return strlen(textA); return strlen(textA);
} }