Eric Pouech : cmd: Test input has been read before using it.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 96d682e5f7b0c68b645beec9daf5d4eabac9353e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/96d682e5f7b0c68b645beec9daf5d4e...

Author: Eric Pouech <epouech(a)codeweavers.com>
Date:   Tue Jun  4 12:15:17 2024 +0200

cmd: Test input has been read before using it.

This let confirmations fail when reading from NUL
(instead of looping forever).

Signed-off-by: Eric Pouech <epouech(a)codeweavers.com>

---

 programs/cmd/builtins.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/programs/cmd/builtins.c b/programs/cmd/builtins.c
index d911f851976..04c879bc18b 100644
--- a/programs/cmd/builtins.c
+++ b/programs/cmd/builtins.c
@@ -228,7 +228,7 @@ static BOOL WCMD_ask_confirm (const WCHAR *message, BOOL showSureText,
       if (showSureText)
         WCMD_output_asis (confirm);
       WCMD_output_asis (options);
-      if (!WCMD_ReadFile(GetStdHandle(STD_INPUT_HANDLE), answer, ARRAY_SIZE(answer), &count))
+      if (!WCMD_ReadFile(GetStdHandle(STD_INPUT_HANDLE), answer, ARRAY_SIZE(answer), &count) || !count)
           return FALSE;
       answer[0] = towupper(answer[0]);
       if (answer[0] == Ybuffer[0])