-/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* uuid.c -- Universally Unique Identifier routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2003 The OpenLDAP Foundation.
+ * Portions Copyright 2000-2003 Kurt D. Zeilenga.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
-/* Portions
- * Copyright 2000, John E. Schimmel, All rights reserved.
+/* Portions Copyright 2000, John E. Schimmel, All rights reserved.
* This software is not subject to any license of Mirapoint, Inc.
*
* This is free software; you can redistribute and use it
* under the same terms as OpenLDAP itself.
*/
-/* Adapted for incorporatation into OpenLDAP by Kurt Zeilenga */
+/* This work was initially developed by John E. Schimmel and adapted
+ * for inclusion in OpenLDAP Software by Kurt D. Zeilenga.
+ */
/*
* Sorry this file is so scary, but it needs to run on a wide range of
*/
#include "portable.h"
+#include <limits.h>
#include <stdio.h>
#include <sys/types.h>
-#ifdef HAVE_SYS_UUID_H
+#include <ac/stdlib.h>
+#include <ac/string.h> /* get memcmp() */
+
+#ifdef HAVE_UUID_TO_STR
# include <sys/uuid.h>
+#elif defined( _WIN32 )
+# include <rpc.h>
#else
# include <ac/socket.h>
-# include <net/if.h>
-# include <sys/time.h>
+# include <ac/time.h>
# ifdef HAVE_SYS_SYSCTL_H
+# include <net/if.h>
# include <sys/sysctl.h>
# include <net/route.h>
# endif
#include <lutil.h>
-/* 100 usec intervals from 10/10/1582 to 1/1/1970 */
-#define UUID_TPLUS 0x01B21DD2138140LL
-
-#ifndef HAVE_SYS_UUID_H
+/* not needed for Windows */
+#if !defined(HAVE_UUID_TO_STR) && !defined(_WIN32)
static unsigned char *
lutil_eaddr( void )
{
free(buf);
return NULL;
-#elif defined (SIOCGIFADDR)
+#elif defined( SIOCGIFADDR ) && defined( AFLINK )
char buf[sizeof(struct ifreq) * 32];
struct ifconf ifc;
struct ifreq *ifr;
if (memcmp(eaddr, zero, sizeof(eaddr)) == 0) {
/* XXX - who knows? */
lutil_entropy( eaddr, sizeof(eaddr) );
- eaddr[0] |= 0x80; /* turn it into a mutlicast address */
+ eaddr[0] |= 0x80; /* turn it into a multicast address */
}
return eaddr;
#endif
}
+
+#if (ULONG_MAX >> 31 >> 31) > 1 || defined HAVE_LONG_LONG
+
+#if (ULONG_MAX >> 31 >> 31) > 1
+ typedef unsigned long UI64;
+ /* 100 usec intervals from 10/10/1582 to 1/1/1970 */
+# define UUID_TPLUS 0x01B21DD2138140ul
+#else
+ typedef unsigned long long UI64;
+# define UUID_TPLUS 0x01B21DD2138140ull
#endif
+#define high32(i) ((unsigned long) ((i) >> 32))
+#define low32(i) ((unsigned long) (i) & 0xFFFFFFFFul)
+#define set_add64(res, i) ((res) += (i))
+#define set_add64l(res, i) ((res) += (i))
+#define mul64ll(i1, i2) ((UI64) (i1) * (i2))
+
+#else /* ! (ULONG_MAX >= 64 bits || HAVE_LONG_LONG) */
+
+typedef struct {
+ unsigned long high, low;
+} UI64;
+
+static const UI64 UUID_TPLUS = { 0x01B21Dul, 0xD2138140ul };
+
+#define high32(i) ((i).high)
+#define low32(i) ((i).low)
+
+/* res += ui64 */
+#define set_add64(res, ui64) \
+{ \
+ res.high += ui64.high; \
+ res.low = (res.low + ui64.low) & 0xFFFFFFFFul; \
+ if (res.low < ui64.low) res.high++; \
+}
+
+/* res += ul32 */
+#define set_add64l(res, ul32) \
+{ \
+ res.low = (res.low + ul32) & 0xFFFFFFFFul; \
+ if (res.low < ul32) res.high++; \
+}
+
+/* compute i1 * i2 */
+static UI64
+mul64ll(unsigned long i1, unsigned long i2)
+{
+ const unsigned int high1 = (i1 >> 16), low1 = (i1 & 0xffff);
+ const unsigned int high2 = (i2 >> 16), low2 = (i2 & 0xffff);
+
+ UI64 res;
+ unsigned long tmp;
+
+ res.high = (unsigned long) high1 * high2;
+ res.low = (unsigned long) low1 * low2;
+
+ tmp = (unsigned long) low1 * high2;
+ res.high += (tmp >> 16);
+ tmp = (tmp << 16) & 0xFFFFFFFFul;
+ res.low = (res.low + tmp) & 0xFFFFFFFFul;
+ if (res.low < tmp)
+ res.high++;
+
+ tmp = (unsigned long) low2 * high1;
+ res.high += (tmp >> 16);
+ tmp = (tmp << 16) & 0xFFFFFFFFul;
+ res.low = (res.low + tmp) & 0xFFFFFFFFul;
+ if (res.low < tmp)
+ res.high++;
+
+ return res;
+}
+
+#endif /* ULONG_MAX >= 64 bits || HAVE_LONG_LONG */
+
+#endif /* !HAVE_UUID_TO_STR && !_WIN32 */
+
/*
** All we really care about is an ISO UUID string. The format of a UUID is:
** field octet note
** We use DCE version one, and the DCE variant. Our unique identifier is
** the first ethernet address on the system.
*/
-int
+size_t
lutil_uuidstr( char *buf, size_t len )
{
-#ifdef HAVE_SYS_UUID_H
+#ifdef HAVE_UUID_TO_STR
uuid_t uu = {0};
unsigned rc;
char *s;
return 0;
}
- strncpy( buf, s, l );
+ strncpy( buf, s, len );
free( s );
return l;
+#elif defined( _WIN32 )
+ UUID uuid;
+ unsigned char *uuidstr;
+ size_t uuidlen;
+
+ if( UuidCreate( &uuid ) != RPC_S_OK ) {
+ return 0;
+ }
+
+ if( UuidToString( &uuid, &uuidstr ) != RPC_S_OK ) {
+ return 0;
+ }
+
+ uuidlen = strlen( uuidstr );
+ if( uuidlen >= len ) {
+ return 0;
+ }
+
+ strncpy( buf, uuidstr, len );
+ RpcStringFree( &uuidstr );
+
+ return uuidlen;
+
#else
struct timeval tv;
- unsigned long long tl;
+ UI64 tl;
unsigned char *nl;
- unsigned short t2, t3, s1, n1, n2, n3;
- unsigned int t1;
+ unsigned short t2, t3, s1;
+ unsigned long t1, tl_high;
+ unsigned int rc;
/*
* Theoretically we should delay if seq wraps within 100usec but for now
tv.tv_usec = 0;
#endif
- tl = ( tv.tv_sec * 10000000LL ) + ( tv.tv_usec * 10LL ) + UUID_TPLUS;
+ tl = mul64ll(tv.tv_sec, 10000000UL);
+ set_add64l(tl, tv.tv_usec * 10UL);
+ set_add64(tl, UUID_TPLUS);
+
nl = lutil_eaddr();
- t1 = tl & 0xffffffff; /* time_low */
- t2 = ( tl >> 32 ) & 0xffff; /* time_mid */
- t3 = ( ( tl >> 48 ) & 0x0fff ) | 0x1000; /* time_hi_and_version */
+ t1 = low32(tl); /* time_low */
+ tl_high = high32(tl);
+ t2 = tl_high & 0xffff; /* time_mid */
+ t3 = ((tl_high >> 16) & 0x0fff) | 0x1000; /* time_hi_and_version */
s1 = ( ++seq & 0x1fff ) | 0x8000; /* clock_seq_and_reserved */
- t1 = snprintf( buf, len,
- "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
- t1, (unsigned) t2, (unsigned) t3, (unsigned) s1,
+ rc = snprintf( buf, len,
+ "%08lx-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
+ t1, (unsigned) t2, (unsigned) t3, (unsigned) s1,
(unsigned) nl[0], (unsigned) nl[1],
(unsigned) nl[2], (unsigned) nl[3],
(unsigned) nl[4], (unsigned) nl[5] );
- return (t1 < len) ? t1 : 0;
+ return rc < len ? rc : 0;
#endif
}
{
char buf1[8], buf2[64];
-#ifndef HAVE_SYS_UUID_H
+#ifndef HAVE_UUID_TO_STR
unsigned char *p = lutil_eaddr();
if( p ) {
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