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annotate pcsc/atrfunc.c @ 1:f7a03e53bb2c

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fc-pcsc-atr ported over
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Mar 2021 01:09:23 +0000
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children 11f4f8a8fa33
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f7a03e53bb2c fc-pcsc-atr ported over
Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h>
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2 #include <stdio.h>
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3 #include <stdlib.h>
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4 #include <pcsclite.h>
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5 #include <winscard.h>
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6 #include <reader.h>
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7
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8 extern SCARDCONTEXT hContext;
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9 extern SCARDHANDLE hCard;
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10
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11 #define MAX_ATR_BYTES 33
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12
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13 retrieve_atr(decor)
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14 {
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15 u_char atrbuf[MAX_ATR_BYTES];
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16 LONG rv;
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17 DWORD dwAttrLen;
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18 unsigned n;
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19
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20 dwAttrLen = MAX_ATR_BYTES;
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21 rv = SCardGetAttrib(hCard, SCARD_ATTR_ATR_STRING, atrbuf, &dwAttrLen);
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22 if (rv != SCARD_S_SUCCESS) {
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23 fprintf(stderr, "SCardGetAttrib for ATR: %s\n",
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24 pcsc_stringify_error(rv));
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25 SCardReleaseContext(hContext);
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26 exit(1);
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27 }
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28 if (decor)
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29 printf("ATR:");
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30 for (n = 0; n < dwAttrLen; n++) {
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31 if (decor)
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32 putchar(' ');
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33 printf("%02X", atrbuf[n]);
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34 }
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35 putchar('\n');
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36 return(0);
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37 }