This commit was generated by cvs2svn to compensate for changes in r30,

which included commits to RCS files with non-trunk default branches.
(This used to be commit 3a69cffb062d4f1238b8cae10481c1f2ea4d3d8b)

1 files changed, 104 insertions, 0 deletions

diff --git a/source4/lib/util_uuid.c b/source4/lib/util_uuid.c
new file mode 100644
index 0000000000..76eb93a9b8
--- /dev/null
+++ b/source4/lib/util_uuid.c
@@ -0,0 +1,104 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  UUID server routines
+ *  Copyright (C) Theodore Ts'o               1996, 1997,
+ *  Copyright (C) Jim McDonough                     2002.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+/*
+ * Offset between 15-Oct-1582 and 1-Jan-70
+ */
+#define TIME_OFFSET_HIGH 0x01B21DD2
+#define TIME_OFFSET_LOW  0x13814000
+
+struct uuid {
+        uint32   time_low;
+        uint16   time_mid;
+        uint16   time_hi_and_version;
+        uint8    clock_seq[2];
+        uint8    node[6];
+};
+
+
+static void uuid_pack(const struct uuid *uu, GUID *ptr)
+{
+	uint8 *out = ptr->info;
+
+	SIVAL(out, 0, uu->time_low);
+	SSVAL(out, 4, uu->time_mid);
+	SSVAL(out, 6, uu->time_hi_and_version);
+	memcpy(out+8, uu->clock_seq, 2);
+	memcpy(out+10, uu->node, 6);
+}
+
+static void uuid_unpack(const GUID in, struct uuid *uu)
+{
+	const uint8 *ptr = in.info;
+
+	uu->time_low = IVAL(ptr, 0);
+	uu->time_mid = SVAL(ptr, 4);
+	uu->time_hi_and_version = SVAL(ptr, 6);
+	memcpy(uu->clock_seq, ptr+8, 2);
+	memcpy(uu->node, ptr+10, 6);
+}
+
+void uuid_generate_random(GUID *out)
+{
+	GUID tmp;
+	struct uuid uu;
+
+	generate_random_buffer(tmp.info, sizeof(tmp.info), True);
+	uuid_unpack(tmp, &uu);
+
+	uu.clock_seq[0] = (uu.clock_seq[0] & 0x3F) | 0x80;
+	uu.time_hi_and_version = (uu.time_hi_and_version & 0x0FFF) | 0x4000;
+	uuid_pack(&uu, out);
+}
+
+char *guid_to_string(const GUID in)
+{
+	struct uuid uu;
+	char *out;
+
+	uuid_unpack(in, &uu);
+	
+	asprintf(&out, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+		 uu.time_low, uu.time_mid, uu.time_hi_and_version,
+		 uu.clock_seq[0], uu.clock_seq[1],
+		 uu.node[0], uu.node[1], uu.node[2], 
+		 uu.node[3], uu.node[4], uu.node[5]);
+
+	return out;
+}
+
+const char *uuid_string(TALLOC_CTX *mem_ctx, const GUID in)
+{
+	struct uuid uu;
+	char *out;
+
+	uuid_unpack(in, &uu);
+	if (!out) return NULL;
+	out = talloc_asprintf(mem_ctx, 
+		 "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+		 uu.time_low, uu.time_mid, uu.time_hi_and_version,
+		 uu.clock_seq[0], uu.clock_seq[1],
+		 uu.node[0], uu.node[1], uu.node[2], 
+		 uu.node[3], uu.node[4], uu.node[5]);
+	return out;
+}