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-rw-r--r--libcli/security/dom_sid.h1
-rw-r--r--libcli/security/util_sid.c33
2 files changed, 34 insertions, 0 deletions
diff --git a/libcli/security/dom_sid.h b/libcli/security/dom_sid.h
index 6c3225e267d..e22ebc9abca 100644
--- a/libcli/security/dom_sid.h
+++ b/libcli/security/dom_sid.h
@@ -74,6 +74,7 @@ NTSTATUS dom_sid_lookup_predefined_sid(const struct dom_sid *sid,
enum lsa_SidType *type,
const struct dom_sid **authority_sid,
const char **authority_name);
+bool dom_sid_lookup_is_predefined_domain(const char *domain);
int dom_sid_compare_auth(const struct dom_sid *sid1,
const struct dom_sid *sid2);
diff --git a/libcli/security/util_sid.c b/libcli/security/util_sid.c
index 4e4a8fa0d3e..c616d2459e0 100644
--- a/libcli/security/util_sid.c
+++ b/libcli/security/util_sid.c
@@ -879,6 +879,39 @@ NTSTATUS dom_sid_lookup_predefined_name(const char *name,
return NT_STATUS_NONE_MAPPED;
}
+bool dom_sid_lookup_is_predefined_domain(const char *domain)
+{
+ size_t di;
+ bool match;
+
+ if (domain == NULL) {
+ domain = "";
+ }
+
+ match = strequal(domain, "");
+ if (match) {
+ /*
+ * Strange, but that's what W2012R2 does.
+ */
+ domain = "BUILTIN";
+ }
+
+ for (di = 0; di < ARRAY_SIZE(predefined_domains); di++) {
+ const struct predefined_domain_mapping *d =
+ &predefined_domains[di];
+ int cmp;
+
+ cmp = strcasecmp(d->domain, domain);
+ if (cmp != 0) {
+ continue;
+ }
+
+ return true;
+ }
+
+ return false;
+}
+
NTSTATUS dom_sid_lookup_predefined_sid(const struct dom_sid *sid,
const char **name,
enum lsa_SidType *type,