1 files changed, 168 insertions, 0 deletions
diff --git a/bin/tests/optional/entropy2_test.c b/bin/tests/optional/entropy2_test.c
new file mode 100644
index 0000000..b7b2b70
--- /dev/null
+++ b/bin/tests/optional/entropy2_test.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <config.h>
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <isc/entropy.h>
+#include <isc/keyboard.h>
+#include <isc/mem.h>
+#include <isc/print.h>
+#include <isc/string.h>
+#include <isc/time.h>
+#include <isc/util.h>
+
+static void
+hex_dump(const char *msg, void *data, unsigned int length) {
+	unsigned int len;
+	unsigned char *base;
+	bool first = true;
+
+	base = data;
+
+	printf("DUMP of %u bytes:  %s\n\t", length, msg);
+	for (len = 0; len < length; len++) {
+		if (len % 16 == 0 && !first)
+			printf("\n\t");
+		printf("%02x ", base[len]);
+		first = false;
+	}
+	printf("\n");
+}
+
+static void
+CHECK(const char *msg, isc_result_t result) {
+	if (result != ISC_R_SUCCESS) {
+		printf("FAILURE:  %s:  %s\n", msg, isc_result_totext(result));
+		exit(1);
+	}
+}
+
+static isc_result_t
+start(isc_entropysource_t *source, void *arg, bool blocking) {
+	isc_keyboard_t *kbd = (isc_keyboard_t *)arg;
+
+	UNUSED(source);
+
+	if (blocking)
+		printf("start called, blocking mode.\n");
+	else
+		printf("start called, non-blocking mode.\n");
+
+	return (isc_keyboard_open(kbd));
+}
+
+static void
+stop(isc_entropysource_t *source, void *arg) {
+	isc_keyboard_t *kbd = (isc_keyboard_t *)arg;
+
+	UNUSED(source);
+
+	printf("ENOUGH!  Stop typing, please.\r\n");
+
+	(void)isc_keyboard_close(kbd, 3);
+	printf("stop called\n");
+}
+
+static isc_result_t
+get(isc_entropysource_t *source, void *arg, bool blocking) {
+	isc_keyboard_t *kbd = (isc_keyboard_t *)arg;
+	isc_result_t result;
+	isc_time_t t;
+	uint32_t sample;
+	uint32_t extra;
+	unsigned char c;
+
+	if (!blocking)
+		return (ISC_R_NOENTROPY);
+
+	result = isc_keyboard_getchar(kbd, &c);
+	if (result != ISC_R_SUCCESS)
+		return (result);
+
+	TIME_NOW(&t);
+
+	sample = isc_time_nanoseconds(&t);
+	extra = c;
+
+	result = isc_entropy_addcallbacksample(source, sample, extra);
+	if (result != ISC_R_SUCCESS) {
+		printf("\r\n");
+		return (result);
+	}
+
+	printf(".");
+	fflush(stdout);
+
+	return (result);
+}
+
+int
+main(int argc, char **argv) {
+	isc_mem_t *mctx;
+	unsigned char buffer[512];
+	isc_entropy_t *ent;
+	isc_entropysource_t *source;
+	unsigned int returned;
+	unsigned int flags;
+	isc_result_t result;
+	isc_keyboard_t kbd;
+
+	UNUSED(argc);
+	UNUSED(argv);
+
+	mctx = NULL;
+	CHECK("isc_mem_create()",
+	      isc_mem_create(0, 0, &mctx));
+
+	ent = NULL;
+	CHECK("isc_entropy_create()",
+	      isc_entropy_create(mctx, &ent));
+
+	isc_entropy_stats(ent, stderr);
+
+	source = NULL;
+	result = isc_entropy_createcallbacksource(ent, start, get, stop, &kbd,
+						  &source);
+	CHECK("isc_entropy_createcallbacksource()", result);
+
+	fprintf(stderr,
+		"Reading 32 bytes of GOOD random data only, partial OK\n");
+
+	flags = 0;
+	flags |= ISC_ENTROPY_GOODONLY;
+	flags |= ISC_ENTROPY_PARTIAL;
+	flags |= ISC_ENTROPY_BLOCKING;
+	returned = 0;
+	result = isc_entropy_getdata(ent, buffer, 32, &returned, flags);
+	if (result == ISC_R_NOENTROPY) {
+		fprintf(stderr, "No entropy.\r\n");
+	}
+
+	isc_entropy_stopcallbacksources(ent);
+
+	hex_dump("good data only:", buffer, returned);
+
+	isc_entropy_stats(ent, stderr);
+
+	isc_entropy_destroysource(&source);
+	isc_entropy_detach(&ent);
+
+	isc_mem_stats(mctx, stderr);
+	isc_mem_destroy(&mctx);
+
+	return (0);
+}