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Don't cache stdout handle in Windows console colour impl

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The cached handle would become invalid if some other code, say
a user-provided test code, redirects stdout through `freopen`
or `_dup2`, which would then cause AppVerifier to complain.

Fixes #2345
This commit is contained in:
Martin Hořeňovský 2022-01-29 23:12:40 +01:00
parent 7a2f9f4633
commit efb54926ee
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1 changed files with 6 additions and 5 deletions
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11
src/catch2/internal/catch_console_colour.cpp
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@ -59,10 +59,10 @@ namespace {
class Win32ColourImpl : public IColourImpl {
public:
Win32ColourImpl() : stdoutHandle( GetStdHandle(STD_OUTPUT_HANDLE) )
{
Win32ColourImpl() {
CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
GetConsoleScreenBufferInfo( stdoutHandle, &csbiInfo );
GetConsoleScreenBufferInfo( GetStdHandle( STD_OUTPUT_HANDLE ),
&csbiInfo );
originalForegroundAttributes = csbiInfo.wAttributes & ~( BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY );
originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
}
@ -93,9 +93,10 @@ namespace {
private:
void setTextAttribute( WORD _textAttribute ) {
SetConsoleTextAttribute( stdoutHandle, _textAttribute | originalBackgroundAttributes );
SetConsoleTextAttribute( GetStdHandle( STD_OUTPUT_HANDLE ),
_textAttribute |
originalBackgroundAttributes );
}
HANDLE stdoutHandle;
WORD originalForegroundAttributes;
WORD originalBackgroundAttributes;
};