Support the special terminal on first serial line on a S/390(x) which
is due legacy reasons a block terminal of type 3270 or higher.  Whereas
the second serial line on a S/390(x) is a real character terminal which
is compatible with VT220.

---
 term-utils/agetty.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

Index: util-linux-2.24.1/term-utils/agetty.c
===================================================================
--- util-linux-2.24.1.orig/term-utils/agetty.c	2014-02-09 21:19:01.000000000 +0000
+++ util-linux-2.24.1/term-utils/agetty.c	2014-02-09 21:19:27.000000000 +0000
@@ -1042,6 +1042,20 @@ static void open_tty(char *tty, struct t
 	/* make stdio unbuffered for slow modem lines */
 	setvbuf(stdout, NULL, _IONBF, 0);
 
+#if defined (__s390__) || defined (__s390x__)
+	if (!op->term) {
+	        /*
+		 * Special terminal on first serial line on a S/390(x) which
+		 * is due legacy reasons a block terminal of type 3270 or
+		 * higher.  Whereas the second serial line on a S/390(x) is
+		 * a real character terminal which is compatible with VT220.
+		 */
+		if (strcmp(op->tty, "ttyS0") == 0 || strncmp(op->tty, "3270/tty", 8) == 0)
+			op->term = DEFAULT_TTYS0;
+		else if (strcmp(op->tty, "ttyS1") == 0)
+			op->term = DEFAULT_TTYS1;
+	}
+#endif
 	/*
 	 * The following ioctl will fail if stdin is not a tty, but also when
 	 * there is noise on the modem control lines. In the latter case, the