ash: fix error code regression

The commit 'ash,hush: set exit code 127 in "sh /does/not/exist" case'
only partly implemented the dash commit '[ERROR] Allow the originator
of EXERROR to set the exit status'.  This resulted in incorrect error
codes for a syntax error:

   $ )
   $ echo $?
   0

or a redirection error for a special builtin:

   $ rm -f xxx
   $ eval cat <xxx
   $ echo $?
   0

Signed-off-by: Ron Yorston <rmy@pobox.com>
Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 430e42a7b..7c53946ce 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -1284,6 +1284,8 @@ ash_msg_and_raise_error(const char *msg, ...)
 {
 	va_list ap;
 
+	exitstatus = 2;
+
 	va_start(ap, msg);
 	ash_vmsg_and_raise(EXERROR, msg, ap);
 	/* NOTREACHED */
@@ -9588,11 +9590,13 @@ evalcommand(union node *cmd, int flags)
 	}
 
 	if (status) {
+ bail:
+		exitstatus = status;
+
 		/* We have a redirection error. */
 		if (spclbltin > 0)
 			raise_exception(EXERROR);
- bail:
-		exitstatus = status;
+
 		goto out;
 	}