- (djm) Automatically generate host key during "make install". Suggested

   by Gary E. Miller <gem@rellim.com>
 - (djm) Paranoia before kill() system call

1 files changed, 3 insertions, 1 deletions

diff --git a/session.c b/session.c
index 64e240b73..002652303 100644
--- a/session.c
+++ b/session.c
@@ -1608,7 +1608,9 @@ session_close_by_channel(int id, void *arg)
                 session_close(s);
         } else {
                 /* notify child, delay session cleanup */
-                if (kill(s->pid, (s->ttyfd == -1) ? SIGTERM : SIGHUP) < 0)
+                if (s->pid <= 1) 
+                        error("session_close_by_channel: Unsafe s->pid = %d", s->pid);
+                else if (kill(s->pid, (s->ttyfd == -1) ? SIGTERM : SIGHUP) < 0)
                         error("session_close_by_channel: kill %d: %s",
                             s->pid, strerror(errno));
         }