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annotate uptools/libcoding/sms_submit8.c @ 737:6d97866bad79

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first round of documentation for DUART28C boot control addition
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 16 Sep 2020 06:10:39 +0000
parents 759cb6dc501b
children
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759cb6dc501b uptools/libcoding: added function for generating SMS PDUs with 8-bit text
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1 /*
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2 * This library module implements the function for constructing outgoing
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3 * SMS-SUBMIT PDUs, 8-bit version for raw data or UCS-2.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <strings.h>
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8
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9 make_sms_submit_pdu_8bit(da, pid, dcs, textsrc, textlen, udh, udhl, outbuf)
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10 u_char *da, *textsrc, *udh, *outbuf;
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11 unsigned textlen, udhl;
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12 {
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13 u_char *outp = outbuf;
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14 unsigned addr_field_len;
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15 unsigned udh_octets;
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16 unsigned udl;
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17
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18 if (udh)
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19 *outp++ = 0x41;
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20 else
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21 *outp++ = 0x01;
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22 *outp++ = 0;
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23 addr_field_len = ((da[0] + 1) >> 1) + 2;
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24 bcopy(da, outp, addr_field_len);
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25 outp += addr_field_len;
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26 *outp++ = pid;
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27 *outp++ = dcs;
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28 if (udh)
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29 udh_octets = udhl + 1;
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30 else
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31 udh_octets = 0;
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32 udl = udh_octets + textlen;
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33 *outp++ = udl;
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34 if (udh) {
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35 *outp++ = udhl;
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36 bcopy(udh, outp, udhl);
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37 outp += udhl;
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38 }
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39 bcopy(textsrc, outp, textlen);
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40 outp += textlen;
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41 return (outp - outbuf);
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42 }