ash: re-enable SIGHUP on entry. Closes bug 771.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index cf406a42e..5d0fc6d29 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13016,6 +13016,10 @@ init(void)
 
         /* from trap.c: */
         signal(SIGCHLD, SIG_DFL);
+        /* bash re-enables SIGHUP which is SIG_IGNed on entry.
+         * Try: "trap '' HUP; bash; echo RET" and type "kill -HUP $$"
+         */
+        signal(SIGHUP, SIG_DFL);
 
         /* from var.c: */
         {