commit d7da19ca6f6c025db92455cdbe3de3d7e9ab5905
from: deraadt <deraadt@openbsd.org>
date: Mon Jul 01 18:43:50 2024 UTC

missing save_errno dance inside non-terminal signal handler

commit - 6a150e5c3546e1a3429d9d14f09da33c9e132dfc
commit + d7da19ca6f6c025db92455cdbe3de3d7e9ab5905
blob - fc5665f9737f4046e3ff81844b4798b0e4e0046d
blob + bf7f714865cda1cb8973faa2051b861f667e5415
--- usr.bin/bgplg/misc.c
+++ usr.bin/bgplg/misc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: misc.c,v 1.8 2017/12/18 09:12:49 job Exp $	*/
+/*	$OpenBSD: misc.c,v 1.9 2024/07/01 18:43:50 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org>
@@ -79,10 +79,13 @@ lg_help(struct cmd *cmds, char **argv)
 void
 lg_sig_alarm(int sig)
 {
+	int save_errno = errno;
+
 	if (child != -1) {
 		/* Forcibly kill the child, no excuse... */
 		kill(child, SIGKILL);
 	}
+	errno = save_errno;
 }
 
 int