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annotate libtomcrypt/demos/constants.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 e9dba7abd939
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 #include "tomcrypt.h"
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10
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11 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L
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12 #include <libgen.h>
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13 #else
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14 #define basename(x) x
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15 #endif
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16
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17 /**
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18 @file demo_crypt_constants.c
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19
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20 Demo how to get various constants to dynamic languages
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21 like Python
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22
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23 Larry Bugbee, February 2013
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24 */
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25
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26 static void _print_line(const char* cmd, const char* desc)
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27 {
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28 printf(" %-16s - %s\n", cmd, desc);
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29 }
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30
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31 int main(int argc, char **argv)
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32 {
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33 if (argc == 1) {
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34 /* given a specific constant name, get and print its value */
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35 char name[] = "CTR_COUNTER_BIG_ENDIAN";
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36 int value;
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37 char *names_list;
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38 unsigned int names_list_len;
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39
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40 if (crypt_get_constant(name, &value) != 0) exit(EXIT_FAILURE);
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41 printf("\n %s is %d \n\n", name, value);
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42
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43 /* get and print the length of the names (and values) list */
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44
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45 if (crypt_list_all_constants(NULL, &names_list_len) != 0) exit(EXIT_FAILURE);
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46 printf(" need to allocate %u bytes \n\n", names_list_len);
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47
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48 /* get and print the names (and values) list */
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49 if ((names_list = malloc(names_list_len)) == NULL) exit(EXIT_FAILURE);
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50 if (crypt_list_all_constants(names_list, &names_list_len) != 0) exit(EXIT_FAILURE);
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51 printf(" supported constants:\n\n%s\n\n", names_list);
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52 free(names_list);
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53 } else if (argc == 2) {
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54 if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0) {
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55 char* base = strdup(basename(argv[0]));
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56 printf("Usage: %s [-a] [-s name]\n\n", base);
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57 _print_line("<no argument>", "The old behavior of the demo");
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58 _print_line("-a", "Only lists all constants");
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59 _print_line("-s name", "List a single constant given as argument");
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60 _print_line("-h", "The help you're looking at");
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61 free(base);
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62 } else if (strcmp(argv[1], "-a") == 0) {
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63 char *names_list;
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64 unsigned int names_list_len;
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65 /* get and print the length of the names (and values) list */
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66 if (crypt_list_all_constants(NULL, &names_list_len) != 0) exit(EXIT_FAILURE);
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67 /* get and print the names (and values) list */
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68 names_list = malloc(names_list_len);
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69 if (crypt_list_all_constants(names_list, &names_list_len) != 0) exit(EXIT_FAILURE);
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70 printf("%s\n", names_list);
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71 }
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72 } else if (argc == 3) {
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73 if (strcmp(argv[1], "-s") == 0) {
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74 int value;
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75 if (crypt_get_constant(argv[2], &value) != 0) exit(EXIT_FAILURE);
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76 printf("%s,%u\n", argv[2], value);
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77 }
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78 }
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79
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80 return 0;
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81 }
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82
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83
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84 /* ref: $Format:%D$ */
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85 /* git commit: $Format:%H$ */
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86 /* commit time: $Format:%ai$ */