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annotate libutil/shorthand.c @ 99:97ba63d9361a

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scripts/fcsim1-sst: turn off STK & OTA services In the initial unprogrammed state of the cards from Grcard, SST has services 25 through 29 set to allocated and activated. However, these cards appear to not actually support OTA, ENVELOPE commands do nothing (just return SW 9000), and they were never observed issuing any proactive SIM commands, even after a feature-generous TERMINAL PROFILE. Therefore, let's list these STK & OTA services as allocated, but not activated in our FCSIM1 SST.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 05 May 2021 04:26:07 +0000
parents 34bbb0585cab
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8
34bbb0585cab libutil: import from previous fc-pcsc-tools version
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1 /*
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2 * This module implements the function for parsing shorthand decimal strings.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <ctype.h>
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include <strings.h>
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10
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11 parse_decimal_shorthand(arg, dest, maxdigits)
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12 char *arg;
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13 u_char *dest;
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14 unsigned maxdigits;
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15 {
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16 unsigned n, ntail;
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17
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18 if (!*arg) {
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19 fprintf(stderr,
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20 "error: empty argument given for decimal string\n");
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21 return(-1);
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22 }
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23 if (!isdigit(*arg)) {
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24 fprintf(stderr,
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25 "error: decimal string argument begins with a non-digit\n");
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26 return(-1);
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27 }
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28 for (n = 0; isdigit(*arg); ) {
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29 if (n >= maxdigits) {
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30 toolong: fprintf(stderr,
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31 "error: decimal string exceeds limit of %u digits\n",
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32 maxdigits);
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33 return(-1);
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34 }
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35 dest[n++] = *arg++ - '0';
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36 }
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37 if (!*arg) {
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38 if (n != maxdigits) {
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39 fprintf(stderr,
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40 "error: %u digits required, %u digits given\n",
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41 maxdigits, n);
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42 return(-1);
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43 }
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44 return(0);
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45 }
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46 if (*arg++ != '-') {
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47 malformed: fprintf(stderr,
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48 "error: malformed shorthand decimal string argument\n");
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49 return(-1);
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50 }
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51 ntail = strlen(arg);
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52 if (n + ntail >= maxdigits)
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53 goto toolong;
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54 while (n < maxdigits - ntail)
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55 dest[n++] = 0;
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56 if (!isdigit(*arg))
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57 goto malformed;
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58 while (*arg) {
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59 if (!isdigit(*arg))
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60 goto malformed;
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61 dest[n++] = *arg++ - '0';
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62 }
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63 return(0);
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64 }