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annotate libcommon/revnibbles.c @ 19:72a24b8538eb

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meaty function of pb-dump moved back into simtool, out of libcommon Upon further reflection, I am not going to keep any of the pb-* commands in the new version of fc-uicc-tool: they are logically incorrect for UICC/USIM anyway, as they access phonebook files via old classic SIM paths, rather than their USIM paths. OTOH, I am going to implement new SMSP commands in fc-simtool, and I do not plan to replicate them in fc-uicc-tool either. Guts of fc-simtool pb-dump belong in simtool/pbdump.c, not in libcommon, just like the guts of the future smsp-dump command will belong in its own respective implementation module.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 12 Feb 2021 03:33:26 +0000
parents 4360a7906f34
children
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7
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1 /*
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2 * This module implements some reversed-nibbles parsing functions.
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3 */
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4
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5 #include <sys/types.h>
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6
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7 encode_hex_digit(d)
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8 unsigned d;
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9 {
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10 if (d <= 9)
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11 return(d + '0');
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12 else
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13 return(d - 10 + 'A');
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14 }
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15
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16 decode_reversed_nibbles(bytes, nbytes, dest)
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17 u_char *bytes;
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18 unsigned nbytes;
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19 char *dest;
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20 {
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21 u_char *sp;
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22 char *dp;
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23 unsigned n, c;
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24
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25 sp = bytes;
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26 dp = dest;
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27 for (n = 0; n < nbytes; n++) {
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28 c = *sp & 0xF;
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29 *dp++ = encode_hex_digit(c);
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30 c = *sp >> 4;
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31 *dp++ = encode_hex_digit(c);
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32 sp++;
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33 }
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34 }