--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uptools/atcmd/smsend_pdugen.c	Fri Mar 09 00:27:24 2018 +0000
@@ -0,0 +1,37 @@
+/*
+ * This module implements the encoding part of SMS sending/writing in PDU mode.
+ */
+
+#include <sys/types.h>
+
+send_in_pdu_mode(da, textsrc, textlen, udh, udhl)
+	u_char *da, *textsrc, *udh;
+	unsigned textlen, udhl;
+{
+	u_char pdu[158];
+	unsigned pdulen;
+	char pduhex[317];
+
+	pdu[0] = 0;
+	pdulen = make_sms_submit_pdu(da, 0, 0, textsrc, textlen, udh, udhl,
+					pdu + 1);
+	make_hex_string(pdu, pdulen + 1, pduhex);
+	send_pdu_out(pduhex, pdulen);
+}
+
+send_pdu_ucs2(da, textsrc, textlen, udh, udhl)
+	u_char *da, *udh;
+	u_short *textsrc;
+	unsigned textlen, udhl;
+{
+	u_char ucs2_be[140], pdu[158];
+	unsigned pdulen;
+	char pduhex[317];
+
+	ucs2_out_bigend(textsrc, ucs2_be, textlen);
+	pdu[0] = 0;
+	pdulen = make_sms_submit_pdu_8bit(da, 0, 0x08, ucs2_be, textlen * 2,
+					  udh, udhl, pdu + 1);
+	make_hex_string(pdu, pdulen + 1, pduhex);
+	send_pdu_out(pduhex, pdulen);
+}