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-rw-r--r--contrib/bind9/lib/isc/random.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/contrib/bind9/lib/isc/random.c b/contrib/bind9/lib/isc/random.c
deleted file mode 100644
index f6c7d6e..0000000
--- a/contrib/bind9/lib/isc/random.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 1999-2003 Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/* $Id: random.c,v 1.21.18.2 2005/04/29 00:16:48 marka Exp $ */
-
-/*! \file */
-
-#include <config.h>
-
-#include <stdlib.h>
-#include <time.h> /* Required for time(). */
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#include <isc/mutex.h>
-#include <isc/once.h>
-#include <isc/random.h>
-#include <isc/string.h>
-#include <isc/util.h>
-
-static isc_once_t once = ISC_ONCE_INIT;
-
-static void
-initialize_rand(void)
-{
-#ifndef HAVE_ARC4RANDOM
- unsigned int pid = getpid();
-
- /*
- * The low bits of pid generally change faster.
- * Xor them with the high bits of time which change slowly.
- */
- pid = ((pid << 16) & 0xffff0000) | ((pid >> 16) & 0xffff);
-
- srand(time(NULL) ^ pid);
-#endif
-}
-
-static void
-initialize(void)
-{
- RUNTIME_CHECK(isc_once_do(&once, initialize_rand) == ISC_R_SUCCESS);
-}
-
-void
-isc_random_seed(isc_uint32_t seed)
-{
- initialize();
-
-#ifndef HAVE_ARC4RANDOM
- srand(seed);
-#else
- arc4random_addrandom((u_char *) &seed, sizeof(isc_uint32_t));
-#endif
-}
-
-void
-isc_random_get(isc_uint32_t *val)
-{
- REQUIRE(val != NULL);
-
- initialize();
-
-#ifndef HAVE_ARC4RANDOM
- /*
- * rand()'s lower bits are not random.
- * rand()'s upper bit is zero.
- */
- *val = ((rand() >> 4) & 0xffff) | ((rand() << 12) & 0xffff0000);
-#else
- *val = arc4random();
-#endif
-}
-
-isc_uint32_t
-isc_random_jitter(isc_uint32_t max, isc_uint32_t jitter) {
- REQUIRE(jitter < max);
- if (jitter == 0)
- return (max);
- else
-#ifndef HAVE_ARC4RANDOM
- return (max - rand() % jitter);
-#else
- return (max - arc4random() % jitter);
-#endif
-}
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