Convert NetLocalGroupAdd to use FFI

2 files changed, 25 insertions, 0 deletions

diff --git a/lib/chef/win32/api/net.rb b/lib/chef/win32/api/net.rb
index 72caf46628..d2a05523ed 100644
--- a/lib/chef/win32/api/net.rb
+++ b/lib/chef/win32/api/net.rb
@@ -136,6 +136,18 @@ class Chef
           layout :lgrmi3_domainandname, :LPWSTR
         end
 
+        class LOCALGROUP_INFO_0 < FFI::Struct
+          layout :lgrpi0_name, :LPWSTR
+        end
+
+#NET_API_STATUS NetLocalGroupAdd(
+  #_In_  LPCWSTR servername,
+  #_In_  DWORD   level,
+  #_In_  LPBYTE  buf,
+  #_Out_ LPDWORD parm_err
+#);
+        safe_attach_function :NetLocalGroupAdd, [ :LPCWSTR, :DWORD, :LPBYTE, :LPDWORD], :DWORD
+
 # NET_API_STATUS NetUserEnum(
 #   _In_     LPCWSTR servername,
 #   _In_     DWORD level,
diff --git a/lib/chef/win32/net.rb b/lib/chef/win32/net.rb
index 1349091eb9..ce6b64e255 100644
--- a/lib/chef/win32/net.rb
+++ b/lib/chef/win32/net.rb
@@ -106,6 +106,19 @@ END
         raise Chef::Exceptions::Win32APIError, msg + "\n" + formatted_message
       end
 
+      def self.net_local_group_add(server_name, group_name)
+        server_name = wstring(server_name)
+        group_name = wstring(group_name)
+
+        buf = LOCALGROUP_INFO_0.new
+        buf[:lgrpi0_name] = FFI::MemoryPointer.from_string(group_name)
+
+        rc = NetLocalGroupAdd(server_name, 0, buf, nil)
+        if rc != NERR_Success
+          net_api_error!(rc)
+        end
+      end
+
       def self.net_user_add_l3(server_name, args)
         buf = default_user_info_3