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From: Takashi Yano <tyan0@sourceware.org>
To: cygwin-cvs@sourceware.org
Subject: [newlib-cygwin/cygwin-3_3-branch] Cygwin: pty: Fix a bug in tty_min::segpgid().
Date: Sun, 13 Feb 2022 15:18:10 +0000 (GMT)	[thread overview]
Message-ID: <20220213151810.52CA93858016@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=394c380746bbc6b371aae652469a6fe770dc45d9

commit 394c380746bbc6b371aae652469a6fe770dc45d9
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date:   Sun Feb 13 05:12:18 2022 +0900

    Cygwin: pty: Fix a bug in tty_min::segpgid().
    
    - In tty_min::setpgid(), a pointer to fhandler instance is casted to
      fhandler_pty_slave and accessed even if terminal is not a pty slave.
      This patch fixes the issue.

Diff:
---
 winsup/cygwin/tty.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/tty.cc b/winsup/cygwin/tty.cc
index da75b8dd2..c0015aceb 100644
--- a/winsup/cygwin/tty.cc
+++ b/winsup/cygwin/tty.cc
@@ -309,7 +309,8 @@ tty_min::setpgid (int pid)
   fhandler_pty_slave *ptys = NULL;
   cygheap_fdenum cfd (false);
   while (cfd.next () >= 0 && ptys == NULL)
-    if (cfd->get_device () == getntty ())
+    if (cfd->get_device () == getntty ()
+	&& cfd->get_major () == DEV_PTYS_MAJOR)
       ptys = (fhandler_pty_slave *) (fhandler_base *) cfd;
 
   if (ptys)


                 reply	other threads:[~2022-02-13 15:18 UTC|newest]

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