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| (Empty) |
| 1 /* | |
| 2 * rand_gen.c | |
| 3 * | |
| 4 * a random source (random number generator) | |
| 5 * | |
| 6 * David A. McGrew | |
| 7 * Cisco Systems, Inc. | |
| 8 */ | |
| 9 /* | |
| 10 * | |
| 11 * Copyright(c) 2001-2006 Cisco Systems, Inc. | |
| 12 * All rights reserved. | |
| 13 * | |
| 14 * Redistribution and use in source and binary forms, with or without | |
| 15 * modification, are permitted provided that the following conditions | |
| 16 * are met: | |
| 17 * | |
| 18 * Redistributions of source code must retain the above copyright | |
| 19 * notice, this list of conditions and the following disclaimer. | |
| 20 * | |
| 21 * Redistributions in binary form must reproduce the above | |
| 22 * copyright notice, this list of conditions and the following | |
| 23 * disclaimer in the documentation and/or other materials provided | |
| 24 * with the distribution. | |
| 25 * | |
| 26 * Neither the name of the Cisco Systems, Inc. nor the names of its | |
| 27 * contributors may be used to endorse or promote products derived | |
| 28 * from this software without specific prior written permission. | |
| 29 * | |
| 30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| 33 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| 34 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
| 35 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 36 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 37 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 41 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 42 * | |
| 43 */ | |
| 44 | |
| 45 | |
| 46 #ifdef HAVE_CONFIG_H | |
| 47 #include <config.h> | |
| 48 #endif | |
| 49 | |
| 50 #include <stdio.h> /* for printf() */ | |
| 51 #include "getopt_s.h" | |
| 52 #include "crypto_kernel.h" | |
| 53 | |
| 54 /* | |
| 55 * MAX_PRINT_STRING_LEN is defined in datatypes.h, and is the length | |
| 56 * of the largest hexadecimal string that can be generated by the | |
| 57 * function octet_string_hex_string(). | |
| 58 */ | |
| 59 | |
| 60 #define BUF_LEN (MAX_PRINT_STRING_LEN/2) | |
| 61 | |
| 62 void | |
| 63 usage(char *prog_name) { | |
| 64 printf("usage: %s -n <num_bytes> [-l][ -d debug_module ]*\n" | |
| 65 " -n <num> output <num> random bytes, where <num>" | |
| 66 " is between zero and %d\n" | |
| 67 " -l list the avaliable debug modules\n" | |
| 68 " -d <mod> turn on debugging module <mod>\n", | |
| 69 prog_name, BUF_LEN); | |
| 70 exit(255); | |
| 71 } | |
| 72 | |
| 73 int | |
| 74 main (int argc, char *argv[]) { | |
| 75 int q; | |
| 76 int num_octets = 0; | |
| 77 unsigned do_list_mods = 0; | |
| 78 err_status_t status; | |
| 79 | |
| 80 if (argc == 1) | |
| 81 usage(argv[0]); | |
| 82 | |
| 83 /* initialize kernel - we need to do this before anything else */ | |
| 84 status = crypto_kernel_init(); | |
| 85 if (status) { | |
| 86 printf("error: crypto_kernel init failed\n"); | |
| 87 exit(1); | |
| 88 } | |
| 89 | |
| 90 /* process input arguments */ | |
| 91 while (1) { | |
| 92 q = getopt_s(argc, argv, "ld:n:"); | |
| 93 if (q == -1) | |
| 94 break; | |
| 95 switch (q) { | |
| 96 case 'd': | |
| 97 status = crypto_kernel_set_debug_module(optarg_s, 1); | |
| 98 if (status) { | |
| 99 printf("error: set debug module (%s) failed\n", optarg_s); | |
| 100 exit(1); | |
| 101 } | |
| 102 break; | |
| 103 case 'l': | |
| 104 do_list_mods = 1; | |
| 105 break; | |
| 106 case 'n': | |
| 107 num_octets = atoi(optarg_s); | |
| 108 if (num_octets < 0 || num_octets > BUF_LEN) | |
| 109 usage(argv[0]); | |
| 110 break; | |
| 111 default: | |
| 112 usage(argv[0]); | |
| 113 } | |
| 114 } | |
| 115 | |
| 116 if (do_list_mods) { | |
| 117 status = crypto_kernel_list_debug_modules(); | |
| 118 if (status) { | |
| 119 printf("error: list of debug modules failed\n"); | |
| 120 exit(1); | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 if (num_octets > 0) { | |
| 125 uint8_t buffer[BUF_LEN]; | |
| 126 | |
| 127 status = crypto_get_random(buffer, num_octets); | |
| 128 if (status) { | |
| 129 printf("error: failure in random source\n"); | |
| 130 } else { | |
| 131 printf("%s\n", octet_string_hex_string(buffer, num_octets)); | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 status = crypto_kernel_shutdown(); | |
| 136 if (status) { | |
| 137 printf("error: crypto_kernel shutdown failed\n"); | |
| 138 exit(1); | |
| 139 } | |
| 140 | |
| 141 return 0; | |
| 142 } | |
| 143 | |
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Chromium Code Reviews
Issue 2344973002:
Update libsrtp to version 2.0 (Closed)
