From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin-patches@cygwin.com
Cc: Takashi Yano <takashi.yano@nifty.ne.jp>
Subject: [PATCH] Cygwin: pty: Fix 'Bad address' error when running 'cmd.exe /c dir'
Date: Sat, 22 Oct 2022 14:34:20 +0900 [thread overview]
Message-ID: <20221022053420.1842-1-takashi.yano@nifty.ne.jp> (raw)
- If the command executed is 'cmd.exe /c [...]', runpath in spawn.cc
will be NULL. In this case, is_console_app(runpath) check causes
access violation. This case also the command executed is obviously
console app., therefore, treat it as console app to fix this issue.
Addresses: https://github.com/msys2/msys2-runtime/issues/108
---
winsup/cygwin/spawn.cc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index 5aa52ab1e..4fc842a2b 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -215,6 +215,8 @@ handle (int fd, bool writing)
static bool
is_console_app (WCHAR *filename)
{
+ if (filename == NULL)
+ return true; /* The command executed is command.com or cmd.exe. */
HANDLE h;
const int id_offset = 92;
h = CreateFileW (filename, GENERIC_READ, FILE_SHARE_READ,
--
2.37.2
next reply other threads:[~2022-10-22 5:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-22 5:34 Takashi Yano [this message]
2022-10-22 5:58 ` Johannes Schindelin
2022-10-22 6:12 ` Takashi Yano
2022-10-23 20:42 ` Johannes Schindelin
2022-10-24 9:28 ` Corinna Vinschen
2022-11-18 8:23 ` Johannes Schindelin
2022-11-19 21:38 ` Jeremy Drake
2022-11-21 11:47 ` Corinna Vinschen
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