From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Thu, 12 Jan 2012 19:52:07 +0000 (-0500)
Subject: Catch common signals in the monitor process so they get passed to
X-Git-Tag: SUDO_1_7_9~38
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f0a480f72a3de079b55e1dac848b930d8bc2f0dc;p=sudo

Catch common signals in the monitor process so they get passed to
the command. Fixes a problem when the entire login session is killed
when ssh is disconnected or the terminal window is closed.

--HG--
branch : 1.7
---

diff --git a/exec_pty.c b/exec_pty.c
index 37c4e31bd..7a47ccb70 100644
--- a/exec_pty.c
+++ b/exec_pty.c
@@ -733,6 +733,17 @@ exec_monitor(path, argv, envp, backchannel, rbac)
     sa.sa_handler = handler;
     sigaction(SIGCHLD, &sa, NULL);
 
+    /* Catch common signals so we can cleanup properly. */
+    sa.sa_flags = SA_RESTART;
+    sa.sa_handler = handler;
+    sigaction(SIGHUP, &sa, NULL);
+    sigaction(SIGINT, &sa, NULL);
+    sigaction(SIGQUIT, &sa, NULL);
+    sigaction(SIGTERM, &sa, NULL);
+    sigaction(SIGTSTP, &sa, NULL);
+    sigaction(SIGUSR1, &sa, NULL);
+    sigaction(SIGUSR2, &sa, NULL);
+
     /*
      * Start a new session with the parent as the session leader
      * and the slave pty as the controlling terminal.