FreeCalypso > hg > fc-sim-tools
annotate libutil/revnibbles.c @ 85:c179deb9bb39
uicc/writecmd.c: forgot to update #include header set
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 11 Apr 2021 02:48:22 +0000 |
parents | 34bbb0585cab |
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rev | line source |
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libutil: import from previous fc-pcsc-tools version
Mychaela Falconia <falcon@freecalypso.org>
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1 /* |
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libutil: import from previous fc-pcsc-tools version
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2 * This module implements some reversed-nibbles parsing functions. |
34bbb0585cab
libutil: import from previous fc-pcsc-tools version
Mychaela Falconia <falcon@freecalypso.org>
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3 */ |
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Mychaela Falconia <falcon@freecalypso.org>
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4 |
34bbb0585cab
libutil: import from previous fc-pcsc-tools version
Mychaela Falconia <falcon@freecalypso.org>
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5 #include <sys/types.h> |
34bbb0585cab
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Mychaela Falconia <falcon@freecalypso.org>
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6 |
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libutil: import from previous fc-pcsc-tools version
Mychaela Falconia <falcon@freecalypso.org>
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7 decode_reversed_nibbles(bytes, nbytes, dest) |
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libutil: import from previous fc-pcsc-tools version
Mychaela Falconia <falcon@freecalypso.org>
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8 u_char *bytes; |
34bbb0585cab
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Mychaela Falconia <falcon@freecalypso.org>
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9 unsigned nbytes; |
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Mychaela Falconia <falcon@freecalypso.org>
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10 char *dest; |
34bbb0585cab
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Mychaela Falconia <falcon@freecalypso.org>
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11 { |
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Mychaela Falconia <falcon@freecalypso.org>
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12 u_char *sp; |
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13 char *dp; |
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14 unsigned n, c; |
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15 |
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16 sp = bytes; |
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17 dp = dest; |
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18 for (n = 0; n < nbytes; n++) { |
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19 c = *sp & 0xF; |
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20 *dp++ = encode_hex_digit(c); |
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21 c = *sp >> 4; |
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22 *dp++ = encode_hex_digit(c); |
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Mychaela Falconia <falcon@freecalypso.org>
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23 sp++; |
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Mychaela Falconia <falcon@freecalypso.org>
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24 } |
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Mychaela Falconia <falcon@freecalypso.org>
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25 } |
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Mychaela Falconia <falcon@freecalypso.org>
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26 |
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27 pack_reversed_nibbles(nibbles, bytes, nbytes) |
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28 u_char *nibbles, *bytes; |
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29 unsigned nbytes; |
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30 { |
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31 u_char *sp, *dp; |
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32 unsigned n; |
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33 |
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34 sp = nibbles; |
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35 dp = bytes; |
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36 for (n = 0; n < nbytes; n++) { |
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37 *dp++ = sp[0] | (sp[1] << 4); |
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38 sp += 2; |
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Mychaela Falconia <falcon@freecalypso.org>
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39 } |
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Mychaela Falconia <falcon@freecalypso.org>
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40 } |