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

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

diff --git a/shell/ash.c b/shell/ash.c
index cf406a42e01651f5b1d3cdc1f60e0eb82687b549..5d0fc6d292e0929c95f8972a25d3433f07a5a505 100644 (file)
--- 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: */
        {