Share uuid implementations.

1 files changed, 227 insertions, 0 deletions

diff --git a/librpc/ndr/uuid.c b/librpc/ndr/uuid.c
new file mode 100644
index 0000000000..1e6ee0a3db
--- /dev/null
+++ b/librpc/ndr/uuid.c
@@ -0,0 +1,227 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   UUID/GUID functions
+
+   Copyright (C) Theodore Ts'o               1996, 1997,
+   Copyright (C) Jim McDonough                     2002.
+   Copyright (C) Andrew Tridgell                   2003.
+   
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "librpc/ndr/libndr.h"
+
+/**
+  build a GUID from a string
+*/
+_PUBLIC_ NTSTATUS GUID_from_string(const char *s, struct GUID *guid)
+{
+	NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
+	uint32_t time_low;
+	uint32_t time_mid, time_hi_and_version;
+	uint32_t clock_seq[2];
+	uint32_t node[6];
+	int i;
+
+	if (s == NULL) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (11 == sscanf(s, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+			 &time_low, &time_mid, &time_hi_and_version, 
+			 &clock_seq[0], &clock_seq[1],
+			 &node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
+	        status = NT_STATUS_OK;
+	} else if (11 == sscanf(s, "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
+				&time_low, &time_mid, &time_hi_and_version, 
+				&clock_seq[0], &clock_seq[1],
+				&node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
+		status = NT_STATUS_OK;
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	guid->time_low = time_low;
+	guid->time_mid = time_mid;
+	guid->time_hi_and_version = time_hi_and_version;
+	guid->clock_seq[0] = clock_seq[0];
+	guid->clock_seq[1] = clock_seq[1];
+	for (i=0;i<6;i++) {
+		guid->node[i] = node[i];
+	}
+
+	return NT_STATUS_OK;
+}
+
+/**
+  build a GUID from a string
+*/
+_PUBLIC_ NTSTATUS NS_GUID_from_string(const char *s, struct GUID *guid)
+{
+	NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
+	uint32_t time_low;
+	uint32_t time_mid, time_hi_and_version;
+	uint32_t clock_seq[2];
+	uint32_t node[6];
+	int i;
+
+	if (s == NULL) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (11 == sscanf(s, "%08x-%04x%04x-%02x%02x%02x%02x-%02x%02x%02x%02x",
+			 &time_low, &time_mid, &time_hi_and_version, 
+			 &clock_seq[0], &clock_seq[1],
+			 &node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
+	        status = NT_STATUS_OK;
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	guid->time_low = time_low;
+	guid->time_mid = time_mid;
+	guid->time_hi_and_version = time_hi_and_version;
+	guid->clock_seq[0] = clock_seq[0];
+	guid->clock_seq[1] = clock_seq[1];
+	for (i=0;i<6;i++) {
+		guid->node[i] = node[i];
+	}
+
+	return NT_STATUS_OK;
+}
+
+/**
+ * generate a random GUID
+ */
+_PUBLIC_ struct GUID GUID_random(void)
+{
+	struct GUID guid;
+
+	generate_random_buffer((uint8_t *)&guid, sizeof(guid));
+	guid.clock_seq[0] = (guid.clock_seq[0] & 0x3F) | 0x80;
+	guid.time_hi_and_version = (guid.time_hi_and_version & 0x0FFF) | 0x4000;
+
+	return guid;
+}
+
+/**
+ * generate an empty GUID 
+ */
+_PUBLIC_ struct GUID GUID_zero(void)
+{
+	struct GUID guid;
+
+	ZERO_STRUCT(guid);
+
+	return guid;
+}
+
+_PUBLIC_ bool GUID_all_zero(const struct GUID *u)
+{
+	if (u->time_low != 0 ||
+	    u->time_mid != 0 ||
+	    u->time_hi_and_version != 0 ||
+	    u->clock_seq[0] != 0 ||
+	    u->clock_seq[1] != 0 ||
+	    !all_zero(u->node, 6)) {
+		return false;
+	}
+	return true;
+}
+
+_PUBLIC_ bool GUID_equal(const struct GUID *u1, const struct GUID *u2)
+{
+	if (u1->time_low != u2->time_low ||
+	    u1->time_mid != u2->time_mid ||
+	    u1->time_hi_and_version != u2->time_hi_and_version ||
+	    u1->clock_seq[0] != u2->clock_seq[0] ||
+	    u1->clock_seq[1] != u2->clock_seq[1] ||
+	    memcmp(u1->node, u2->node, 6) != 0) {
+		return false;
+	}
+	return true;
+}
+
+_PUBLIC_ int GUID_compare(const struct GUID *u1, const struct GUID *u2)
+{
+	if (u1->time_low != u2->time_low) {
+		return u1->time_low - u2->time_low;
+	}
+
+	if (u1->time_mid != u2->time_mid) {
+		return u1->time_mid - u2->time_mid;
+	}
+
+	if (u1->time_hi_and_version != u2->time_hi_and_version) {
+		return u1->time_hi_and_version - u2->time_hi_and_version;
+	}
+
+	if (u1->clock_seq[0] != u2->clock_seq[0]) {
+		return u1->clock_seq[0] - u2->clock_seq[0];
+	}
+
+	if (u1->clock_seq[1] != u2->clock_seq[1]) {
+		return u1->clock_seq[1] - u2->clock_seq[1];
+	}
+
+	return memcmp(u1->node, u2->node, 6);
+}
+
+/**
+  its useful to be able to display these in debugging messages
+*/
+_PUBLIC_ char *GUID_string(TALLOC_CTX *mem_ctx, const struct GUID *guid)
+{
+	return talloc_asprintf(mem_ctx, 
+			       "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+			       guid->time_low, guid->time_mid,
+			       guid->time_hi_and_version,
+			       guid->clock_seq[0],
+			       guid->clock_seq[1],
+			       guid->node[0], guid->node[1],
+			       guid->node[2], guid->node[3],
+			       guid->node[4], guid->node[5]);
+}
+
+_PUBLIC_ char *GUID_string2(TALLOC_CTX *mem_ctx, const struct GUID *guid)
+{
+	char *ret, *s = GUID_string(mem_ctx, guid);
+	ret = talloc_asprintf(mem_ctx, "{%s}", s);
+	talloc_free(s);
+	return ret;
+}
+
+_PUBLIC_ char *NS_GUID_string(TALLOC_CTX *mem_ctx, const struct GUID *guid)
+{
+	return talloc_asprintf(mem_ctx, 
+			       "%08x-%04x%04x-%02x%02x%02x%02x-%02x%02x%02x%02x",
+			       guid->time_low, guid->time_mid,
+			       guid->time_hi_and_version,
+			       guid->clock_seq[0],
+			       guid->clock_seq[1],
+			       guid->node[0], guid->node[1],
+			       guid->node[2], guid->node[3],
+			       guid->node[4], guid->node[5]);
+}
+
+_PUBLIC_ bool policy_handle_empty(struct policy_handle *h) 
+{
+	return (h->handle_type == 0 && GUID_all_zero(&h->uuid));
+}