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view uptools/atcmd/smsend_pdugen.c @ 407:19e5a3e2f9c0

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fcup-settime: moved time() retrieval a little closer to the output A fundamental problem with all simple time transfer tools is that there is always some delay between the time retrieval on the source system and that transmitted time being set on the destination, and the resulting time on the destination system is off by that delay amount. This delay cannot be fully eliminated when working in a simple environment like ours, but we should make our best effort to minimize it. In the present case, moving the atinterf_init() call before the time() retrieval should make a teensy-tiny improvement.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 21:52:17 +0000
parents a38805b5b6d4
children
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/*
 * 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);
}