1 files changed, 35 insertions, 0 deletions

diff --git a/debian/patches/sigstop.patch b/debian/patches/sigstop.patch
new file mode 100644
index 000000000..a7eb5996e
--- /dev/null
+++ b/debian/patches/sigstop.patch
@@ -0,0 +1,35 @@
+From 92c6b1dc352b03c7bdecc6ce9bfef7a3b2b54bbc 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 6024e0e..7e72b9b 100644
+--- a/sshd.c
++++ b/sshd.c
+@@ -2042,6 +2042,16 @@ 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);