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annotate pcsc-test/pcsc-test1.c @ 84:1d7d8615d628

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pcsc-test: some experiments to get pcsc-lite working
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 23 Jan 2021 17:21:08 +0000
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84
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h>
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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2 #include <string.h>
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3 #include <strings.h>
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4 #include <stdio.h>
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5 #include <stdlib.h>
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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6 #include <pcsclite.h>
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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7 #include <winscard.h>
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8
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9 main(argc, argv)
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10 char **argv;
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11 {
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12 SCARDCONTEXT hContext;
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13 LONG rv;
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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14 DWORD dwReaders;
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15 LPSTR mszReaders;
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16 char *cp;
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17
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18 rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext);
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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19 if (rv != SCARD_S_SUCCESS) {
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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20 fprintf(stderr, "SCardEstablishContext: %s\n",
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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21 pcsc_stringify_error(rv));
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22 exit(1);
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23 }
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24 rv = SCardListReaders(hContext, NULL, NULL, &dwReaders);
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25 if (rv != SCARD_S_SUCCESS) {
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26 fprintf(stderr, "SCardListReaders 1st call: %s\n",
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27 pcsc_stringify_error(rv));
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28 SCardReleaseContext(hContext);
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29 exit(1);
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30 }
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31 printf("dwReaders = %u\n", (unsigned) dwReaders);
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32 if (dwReaders < 1) {
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33 fprintf(stderr,
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34 "error: dwReaders returned by SCardListReaders() is less than 1\n");
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35 SCardReleaseContext(hContext);
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36 exit(1);
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37 }
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38 mszReaders = malloc(dwReaders);
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39 if (!mszReaders) {
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40 perror("malloc for readers list");
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41 SCardReleaseContext(hContext);
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42 exit(1);
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43 }
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44 *mszReaders = '\0';
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45 rv = SCardListReaders(hContext, NULL, mszReaders, &dwReaders);
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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46 if (rv != SCARD_S_SUCCESS) {
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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47 fprintf(stderr, "SCardListReaders 2nd call: %s\n",
1d7d8615d628 pcsc-test: some experiments to get pcsc-lite working
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48 pcsc_stringify_error(rv));
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49 SCardReleaseContext(hContext);
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50 exit(1);
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51 }
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52 for (cp = mszReaders; *cp; ) {
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53 printf("Reader: %s\n", cp);
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54 cp += strlen(cp) + 1;
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55 }
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56 printf("End of list of readers\n");
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57 SCardReleaseContext(hContext);
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58 exit(0);
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59 }