1 files changed, 57 insertions, 0 deletions
diff --git a/source3/passdb/util_sam_sid.c b/source3/passdb/util_sam_sid.c
index f6cc2491a8..db88ea7aea 100644
--- a/source3/passdb/util_sam_sid.c
+++ b/source3/passdb/util_sam_sid.c
@@ -305,3 +305,60 @@ BOOL map_name_to_wellknown_sid(DOM_SID *sid, enum SID_NAME_USE *use, const char
 
 	return False;
 }
+
+void add_sid_to_array(DOM_SID sid, DOM_SID **sids, int *num)
+{
+	*sids = Realloc(*sids, ((*num)+1) * sizeof(DOM_SID));
+
+	if (*sids == NULL)
+		return;
+
+	sid_copy(&((*sids)[*num]), &sid);
+	*num += 1;
+
+	return;
+}
+
+void add_gid_to_array_unique(gid_t gid, gid_t **gids, int *num)
+{
+	int i;
+
+	if ((*num) >= groups_max())
+		return;
+
+	for (i=0; i<*num; i++) {
+		if ((*gids)[i] == gid)
+			return;
+	}
+	
+	*gids = Realloc(*gids, (*num+1) * sizeof(gid_t));
+
+	if (*gids == NULL)
+		return;
+
+	(*gids)[*num] = gid;
+	*num += 1;
+}
+
+/**************************************************************************
+ Augment a gid list with gids from alias memberships
+***************************************************************************/
+
+void add_foreign_gids_from_sid(const DOM_SID *sid, gid_t **gids, int *num)
+{
+	DOM_SID *aliases;
+	int j, num_aliases;
+
+	if (!pdb_enum_alias_memberships(sid, &aliases, &num_aliases))
+		return;
+
+	for (j=0; j<num_aliases; j++) {
+		gid_t gid;
+
+		if (!NT_STATUS_IS_OK(sid_to_gid(&aliases[j], &gid)))
+			continue;
+
+		add_gid_to_array_unique(gid, gids, num);
+	}
+	SAFE_FREE(aliases);
+}