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annotate libcommon/atr.c @ 93:6041c601304d

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fcsim1-mkprov: revert OTA key addition It appears that GrcardSIM2 cards (which is what we got for FCSIM1) do not support OTA after all, contrary to what we were previously led to believe by some tech support emails from Grcard - apparently those support emails and OTA descriptions referred to some other card model(s).
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 21 Apr 2021 05:38:39 +0000
parents c9ef9e91dd8e
children
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <strings.h>
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5
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6 extern FILE *cpipeF, *rpipeF;
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7 extern char be_atr_string[];
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8
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9 cmd_atr()
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10 {
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11 char inbuf[128], *cp;
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12
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13 /* do we have it already? */
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14 if (be_atr_string[0]) {
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15 printf("ATR: %s\n", be_atr_string);
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16 return(0);
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17 }
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18 /* nope - request it from the BE */
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19 fputs("atr\n", cpipeF);
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20 fflush(cpipeF);
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21 /* collect BE response */
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22 if (!fgets(inbuf, sizeof inbuf, rpipeF)) {
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23 fprintf(stderr, "comm error: EOF reading from back end\n");
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24 return(-1);
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25 }
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26 cp = index(inbuf, '\n');
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27 if (!cp) {
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28 fprintf(stderr,
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29 "comm error: response from back end has no newline\n");
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30 return(-1);
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31 }
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32 *cp = '\0';
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33 if (!inbuf[0]) {
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34 fprintf(stderr,
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35 "comm error: response from back end is an empty line\n");
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36 return(-1);
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37 }
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38 puts(inbuf);
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39 return(0);
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40 }