FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/grokdcs.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents 097ce8431d11
children
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097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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1 /*
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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2 * This library module implements the function that distills the complex
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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3 * set of possible SMS DCS octet values to just one of 4 possibilities:
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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4 * 7-bit text (7), 8-bit data octets (8), UCS-2 text (16) or compressed
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5 * data (9).
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6 *
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7 * The decoding is based on the 3GPP TS 23.038 V11.0.0 spec;
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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8 * reserved encodings are treated as 7-bit text as the spec instructs.
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9 */
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10
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11 sms_dcs_classify(dcs)
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12 {
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13 if (!(dcs & 0x80)) {
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14 if (dcs & 0x20)
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15 return(9);
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16 switch (dcs & 0xC) {
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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17 case 0:
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18 return(7);
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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19 case 4:
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20 return(8);
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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21 case 8:
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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22 return(16);
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23 default:
097ce8431d11 uptools/libcoding: SMS DCS decoding implemented
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24 /* reserved, treating as 7-bit per the spec */
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25 return(7);
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26 }
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27 }
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28 switch (dcs & 0xF0) {
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29 case 0x80:
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30 case 0x90:
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31 case 0xA0:
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32 case 0xB0:
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33 /* reserved, treating as 7-bit per the spec */
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34 return(7);
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35 case 0xC0:
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36 case 0xD0:
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37 return(7);
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38 case 0xE0:
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39 return(16);
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40 case 0xF0:
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41 if (dcs & 4)
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42 return(8);
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43 else
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44 return(7);
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45 }
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46 }