00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/* $NetBSD: entropy_test.c,v 1.6 2014/12/10 04:37:53 christos Exp $ */
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/*
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* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 2000, 2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Id: entropy_test.c,v 1.23 2007/06/19 23:46:59 tbox Exp */
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/*! \file */
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <isc/entropy.h>
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#include <isc/mem.h>
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#include <isc/util.h>
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#include <isc/string.h>
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static void
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hex_dump(const char *msg, void *data, unsigned int length) {
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unsigned int len;
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unsigned char *base;
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isc_boolean_t first = ISC_TRUE;
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base = data;
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printf("DUMP of %d bytes: %s\n\t", length, msg);
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for (len = 0; len < length; len++) {
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if (len % 16 == 0 && !first)
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printf("\n\t");
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printf("%02x ", base[len]);
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first = ISC_FALSE;
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}
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printf("\n");
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}
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static void
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CHECK(const char *msg, isc_result_t result) {
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if (result != ISC_R_SUCCESS) {
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printf("FAILURE: %s: %s\n", msg, isc_result_totext(result));
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exit(1);
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}
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}
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int
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main(int argc, char **argv) {
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isc_mem_t *mctx;
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unsigned char buffer[512];
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isc_entropy_t *ent;
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unsigned int returned;
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unsigned int flags;
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isc_result_t result;
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UNUSED(argc);
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UNUSED(argv);
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mctx = NULL;
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CHECK("isc_mem_create()",
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isc_mem_create(0, 0, &mctx));
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ent = NULL;
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CHECK("isc_entropy_create()",
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isc_entropy_create(mctx, &ent));
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isc_entropy_stats(ent, stderr);
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#if 1
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CHECK("isc_entropy_createfilesource() 1",
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isc_entropy_createfilesource(ent, "/dev/random"));
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CHECK("isc_entropy_createfilesource() 2",
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isc_entropy_createfilesource(ent, "/dev/random"));
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#else
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CHECK("isc_entropy_createfilesource() 3",
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isc_entropy_createfilesource(ent, "/tmp/foo"));
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#endif
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fprintf(stderr,
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"Reading 32 bytes of GOOD random data only, partial OK\n");
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flags = 0;
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flags |= ISC_ENTROPY_GOODONLY;
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flags |= ISC_ENTROPY_PARTIAL;
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result = isc_entropy_getdata(ent, buffer, 32, &returned, flags);
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if (result == ISC_R_NOENTROPY) {
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fprintf(stderr, "No entropy.\n");
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goto any;
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}
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hex_dump("good data only:", buffer, returned);
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any:
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isc_entropy_stats(ent, stderr);
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CHECK("isc_entropy_getdata() pseudorandom",
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isc_entropy_getdata(ent, buffer, 128, NULL, 0));
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hex_dump("pseudorandom data", buffer, 128);
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isc_entropy_stats(ent, stderr);
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flags = 0;
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flags |= ISC_ENTROPY_GOODONLY;
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flags |= ISC_ENTROPY_BLOCKING;
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result = isc_entropy_getdata(ent, buffer, sizeof(buffer), &returned,
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flags);
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CHECK("good data only, blocking mode", result);
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hex_dump("blocking mode data", buffer, sizeof(buffer));
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{
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isc_entropy_t *entcopy1 = NULL;
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isc_entropy_t *entcopy2 = NULL;
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isc_entropy_t *entcopy3 = NULL;
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isc_entropy_attach(ent, &entcopy1);
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isc_entropy_attach(ent, &entcopy2);
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isc_entropy_attach(ent, &entcopy3);
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isc_entropy_stats(ent, stderr);
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isc_entropy_detach(&entcopy1);
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isc_entropy_detach(&entcopy2);
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isc_entropy_detach(&entcopy3);
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}
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isc_entropy_detach(&ent);
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isc_mem_stats(mctx, stderr);
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isc_mem_destroy(&mctx);
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return (0);
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}
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