Package: openssh / 1:6.6p1-4~bpo70+1

sigstop.patch Patch series | download
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From cfeaa0ba2ce2859573f7e980be09ef05511f56a2 Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@debian.org>
Date: Sun, 9 Feb 2014 16:10:17 +0000
Subject: Support synchronisation with service supervisor using SIGSTOP

Author: Robie Basak <robie.basak@ubuntu.com>
Forwarded: no
Last-Update: 2014-04-14

Patch-Name: sigstop.patch
---
 sshd.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sshd.c b/sshd.c
index 665c0b9..0964491 100644
--- a/sshd.c
+++ b/sshd.c
@@ -1931,6 +1931,16 @@ main(int ac, char **av)
 			}
 		}
 
+		if (getenv("SSH_SIGSTOP")) {
+			/* Tell service supervisor that we are ready. */
+			kill(getpid(), SIGSTOP);
+			/* The service supervisor only ever expects a single
+			 * STOP signal, so do not ever signal it again, even
+			 * in the case of a re-exec or future children.
+			 */
+			unsetenv("SSH_SIGSTOP");
+		}
+
 		/* Accept a connection and return in a forked child */
 		server_accept_loop(&sock_in, &sock_out,
 		    &newsock, config_s);