On 22.12.16 18:08, Johannes Schindelin wrote:
> When determining whether a handle corresponds to a *real* Win32 Console
> (as opposed to, say, a character device such as /dev/null), we use the
> GetConsoleOutputBufferInfo() function as a tell-tale.
>
> However, that does not work for *input* handles associated with a
> console. Let's just use the GetConsoleMode() function for input handles,
> and since it does not work on output handles fall back to the previous
> method for those.
>
> This patch prepares for using is_console() instead of my previous
> misguided attempt in cbb3f3c9b1 (mingw: intercept isatty() to handle
> /dev/null as Git expects it, 2016-12-11) that broke everything on
> Windows.
>
> Signed-off-by: Johannes Schindelin <johannes.schinde...@gmx.de>
> ---
> compat/winansi.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/compat/winansi.c b/compat/winansi.c
> index cb725fb02f..590d61cb1b 100644
> --- a/compat/winansi.c
> +++ b/compat/winansi.c
> @@ -84,6 +84,7 @@ static void warn_if_raster_font(void)
> static int is_console(int fd)
> {
> CONSOLE_SCREEN_BUFFER_INFO sbi;
> + DWORD mode;
Nit: can we move this definition into the block below where it's used?
> HANDLE hcon;
>
> static int initialized = 0;
> @@ -98,7 +99,10 @@ static int is_console(int fd)
> return 0;
>
> /* check if its a handle to a console output screen buffer */
> - if (!GetConsoleScreenBufferInfo(hcon, &sbi))
> + if (!fd) {
Right here:
+ DWORD mode;
> + if (!GetConsoleMode(hcon, &mode))
> + return 0;
> + } else if (!GetConsoleScreenBufferInfo(hcon, &sbi))
> return 0;
>
> /* initialize attributes */
>
