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annotate libtomcrypt/src/misc/compare_testvector.c @ 1629:258b57b208ae

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Fix for issue successfull login of disabled user (#78) This commit introduces fix for scenario: 1. Root login disabled on dropbear 2. PAM authentication model enabled While login as root user, after prompt for password user is being notified about login failrue, but after second attempt of prompt for password within same session, login becames succesfull. Signed-off-by: Pawel Rapkiewicz <[email protected]>
author vincentto13 <33652988+vincentto13@users.noreply.github.com>
date Wed, 20 Mar 2019 15:03:40 +0100
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1471
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 #include "tomcrypt.h"
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11
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12 /**
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13 @file compare_testvector.c
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14 Function to compare two testvectors and print a (detailed) error-message if required, Steffen Jaeckel
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15 */
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16
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17 #if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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18 static void _print_hex(const char* what, const void* v, const unsigned long l)
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19 {
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20 const unsigned char* p = v;
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21 unsigned long x, y = 0, z;
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22 fprintf(stderr, "%s contents: \n", what);
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23 for (x = 0; x < l; ) {
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24 fprintf(stderr, "%02X ", p[x]);
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25 if (!(++x % 16) || x == l) {
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26 if((x % 16) != 0) {
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27 z = 16 - (x % 16);
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28 if(z >= 8)
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29 fprintf(stderr, " ");
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30 for (; z != 0; --z) {
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31 fprintf(stderr, " ");
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32 }
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33 }
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34 fprintf(stderr, " | ");
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35 for(; y < x; y++) {
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36 if((y % 8) == 0)
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37 fprintf(stderr, " ");
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38 if(isgraph(p[y]))
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39 fprintf(stderr, "%c", p[y]);
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40 else
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41 fprintf(stderr, ".");
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42 }
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43 fprintf(stderr, "\n");
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44 }
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45 else if((x % 8) == 0) {
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46 fprintf(stderr, " ");
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47 }
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48 }
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49 }
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50 #endif
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51
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52 /**
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53 Compare two test-vectors
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54
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55 @param is The data as it is
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56 @param is_len The length of is
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57 @param should The data as it should
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58 @param should_len The length of should
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59 @param what The type of the data
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60 @param which The iteration count
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61 @return 0 on equality, -1 or 1 on difference
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62 */
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63 int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which)
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64 {
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65 int res = 0;
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66 if(is_len != should_len)
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67 res = is_len > should_len ? -1 : 1;
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68 else
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69 res = XMEMCMP(is, should, is_len);
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70
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71 #if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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72 if (res != 0) {
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73 fprintf(stderr, "Testvector #%i of %s failed:\n", which, what);
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74 _print_hex("SHOULD", should, should_len);
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75 _print_hex("IS ", is, is_len);
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76 }
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77 #else
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78 LTC_UNUSED_PARAM(which);
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79 LTC_UNUSED_PARAM(what);
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80 #endif
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81
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82 return res;
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83 }
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84
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85 /* ref: $Format:%D$ */
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86 /* git commit: $Format:%H$ */
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87 /* commit time: $Format:%ai$ */