Module Name: src
Committed By: rin
Date: Tue Sep 18 22:51:00 UTC 2018
Modified Files:
src/lib/libcurses: tstp.c
Log Message:
PR lib/53615
Before invoking a previous signal handler, make sure it is not SIG_*.
Fix potential crash with SIGWINCH.
OK roy
To generate a diff of this commit:
cvs rdiff -u -r1.42 -r1.43 src/lib/libcurses/tstp.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libcurses/tstp.c
diff -u src/lib/libcurses/tstp.c:1.42 src/lib/libcurses/tstp.c:1.43
--- src/lib/libcurses/tstp.c:1.42 Fri Jan 6 13:53:18 2017
+++ src/lib/libcurses/tstp.c Tue Sep 18 22:51:00 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: tstp.c,v 1.42 2017/01/06 13:53:18 roy Exp $ */
+/* $NetBSD: tstp.c,v 1.43 2018/09/18 22:51:00 rin Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
@@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)tstp.c 8.3 (Berkeley) 5/4/94";
#else
-__RCSID("$NetBSD: tstp.c,v 1.42 2017/01/06 13:53:18 roy Exp $");
+__RCSID("$NetBSD: tstp.c,v 1.43 2018/09/18 22:51:00 rin Exp $");
#endif
#endif /* not lint */
@@ -150,7 +150,10 @@ __winch_signal_handler(/*ARGSUSED*/int s
* If there was a previous handler, call that,
* otherwise tell getch() to send KEY_RESIZE.
*/
- if (owsa.sa_handler != NULL)
+ if (owsa.sa_handler != SIG_DFL &&
+ owsa.sa_handler != SIG_IGN &&
+ owsa.sa_handler != SIG_ERR &&
+ owsa.sa_handler != SIG_HOLD)
owsa.sa_handler(signo);
else
_cursesi_screen->resized = 1;
