Mercurial > dropbear
annotate libtomcrypt/demos/constants.c @ 1866:adfcdfb161a4
Fix missing NULL terminator for re-exec
Also fixes fallback, sockets were not kept open
author | Matt Johnston <matt@ucc.asn.au> |
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date | Mon, 31 Jan 2022 11:12:58 +0800 |
parents | e9dba7abd939 |
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rev | line source |
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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 */ |
1711 | 68 if ((names_list = malloc(names_list_len)) == NULL) exit(EXIT_FAILURE); |
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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); |
1711 | 71 free(names_list); |
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72 } |
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73 } else if (argc == 3) { |
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74 if (strcmp(argv[1], "-s") == 0) { |
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75 int value; |
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76 if (crypt_get_constant(argv[2], &value) != 0) exit(EXIT_FAILURE); |
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77 printf("%s,%u\n", argv[2], value); |
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78 } |
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79 } |
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80 |
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81 return 0; |
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82 } |
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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: $Format:%ai$ */ |