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authorJelmer Vernooij <jelmer@samba.org>2008-10-13 15:23:35 +0200
committerJelmer Vernooij <jelmer@samba.org>2008-10-13 15:23:35 +0200
commit58f844ab5422490d49b21701ffbe706c06b8c40a (patch)
treedf6caf67443a858438152d8904d6c028bc41273c /librpc/ndr/uuid.c
parent8cae7a5baba9c62c2205ea88e0eafeb3248b978a (diff)
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Share uuid implementations.
Diffstat (limited to 'librpc/ndr/uuid.c')
-rw-r--r--librpc/ndr/uuid.c227
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));
+}