FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/number_decode.c @ 921:74d284add54d

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fc-fsio: guard against bogus readdir results from the target If the FFS being operated on contains SE K2x0 extended filenames, readdir will return strings that are bad for printing. We need to guard against this possibility, and also against possible other bogosity that could be sent by other alien firmwares.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Dec 2022 22:55:23 +0000
parents ea41b6001848
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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110fffa1f001 uptools/libcoding: digit decoding implemented
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1 /*
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2 * This library module implements the decoding of number (address) digits.
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3 */
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4
110fffa1f001 uptools/libcoding: digit decoding implemented
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5 #include <sys/types.h>
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6
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7 char gsm_address_digits[16] =
110fffa1f001 uptools/libcoding: digit decoding implemented
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8 {'0','1','2','3','4','5','6','7','8','9','*','#','a','b','c','?'};
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9
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10 decode_address_digits(inbuf, outbuf, ndigits)
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11 u_char *inbuf;
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12 char *outbuf;
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13 unsigned ndigits;
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14 {
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15 u_char *inp = inbuf;
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16 char *outp = outbuf;
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17 unsigned n = 0, b;
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18
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19 while (n < ndigits) {
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20 b = *inp++;
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21 *outp++ = gsm_address_digits[b & 0xF];
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22 n++;
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23 if (n >= ndigits)
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24 break;
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25 *outp++ = gsm_address_digits[b >> 4];
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26 n++;
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27 }
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ea41b6001848 uptools/libcoding: SC address decoding implemented
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28 *outp = '\0';
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29 }