FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/ucs2_decode.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 978571e23318
children 1c599681fd60
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1 /*
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2 * This library module implements the conversion of UCS2-encoded data
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3 * (typically received in SMS) into ASCII, ISO 8859-1 or UTF-8,
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4 * maintaining parallelism with the corresponding function for decoding
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5 * GSM7-encoded data.
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6 */
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7
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8 #include <sys/types.h>
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9
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10 ucs2_to_ascii_or_ext(inbuf, inlen, outbuf, outlenp, ascii_ext, newline_ok, errp)
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11 u_char *inbuf, *outbuf;
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12 unsigned inlen, *outlenp, *errp;
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13 {
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14 u_char *inp, *endp, *outp;
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15 unsigned errcnt = 0;
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16 unsigned uni;
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17
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18 inp = inbuf;
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19 endp = inbuf + (inlen & ~1);
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20 outp = outbuf;
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21 while (inp < endp) {
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22 uni = (inp[0] << 8) | inp[1];
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23 inp += 2;
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24 if (uni == '\r') {
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25 *outp++ = '\\';
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26 *outp++ = 'r';
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27 errcnt++;
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28 } else if (uni == '\n') {
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29 if (newline_ok)
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30 *outp++ = '\n';
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31 else {
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32 *outp++ = '\\';
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33 *outp++ = 'n';
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34 errcnt++;
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35 }
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36 } else if (!is_decoded_char_ok(uni, ascii_ext)) {
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37 *outp++ = '?';
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38 errcnt++;
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39 } else if (ascii_ext == 2)
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40 outp += emit_utf8_char(uni, outp);
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41 else
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42 *outp++ = uni;
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43 }
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44 *outp = '\0';
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45 if (outlenp)
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46 *outlenp = outp - outbuf;
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47 if (errp)
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48 *errp = errcnt;
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49 }