FreeCalypso > hg > fc-pcsc-tools

annotate libutil/pinentry.c @ 157:f064dbcc5f41

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libutil split from libcommon
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Feb 2021 20:19:58 +0000
parents libcommon/pinentry.c@e9e8ce12f5a5
children
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3
e9e8ce12f5a5 encode_pin_entry() factored out into libcommon
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1 #include <sys/types.h>
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2 #include <ctype.h>
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3 #include <stdio.h>
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4
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5 encode_pin_entry(arg, dest)
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6 char *arg;
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7 u_char *dest;
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8 {
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9 unsigned n;
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10
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11 n = 0;
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12 while (*arg) {
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13 if (!isdigit(*arg)) {
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14 fprintf(stderr,
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15 "error: PIN argument contains a non-digit character\n");
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16 return(-1);
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17 }
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18 if (n >= 8) {
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19 fprintf(stderr, "error: PIN argument is too long\n");
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20 return(-1);
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21 }
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22 *dest++ = *arg++;
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23 n++;
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24 }
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25 for (; n < 8; n++)
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26 *dest++ = 0xFF;
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27 return(0);
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28 }