If attach is being done over passed-in fds, then we shouldn't
mess with the caller's signal table to ignore ctrl-c over the
fd.

Signed-off-by: Serge Hallyn <[email protected]>
---
 src/lxc/attach.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/lxc/attach.c b/src/lxc/attach.c
index 2318018..4010668 100644
--- a/src/lxc/attach.c
+++ b/src/lxc/attach.c
@@ -758,8 +758,10 @@ int lxc_attach(const char* name, const char* lxcpath, 
lxc_attach_exec_t exec_fun
                }
 
                /* ignore SIGKILL (CTRL-C) and SIGQUIT (CTRL-\) - issue #313 */
-               signal(SIGINT, SIG_IGN);
-               signal(SIGQUIT, SIG_IGN);
+               if (options->stdin_fd == 0) {
+                       signal(SIGINT, SIG_IGN);
+                       signal(SIGQUIT, SIG_IGN);
+               }
 
                /* reap intermediate process */
                ret = wait_for_pid(pid);
-- 
2.1.0

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