Initial checkin

1 files changed, 52 insertions, 0 deletions

diff --git a/libshouldbeinlibc/ugids-auth.c b/libshouldbeinlibc/ugids-auth.c
new file mode 100644
index 00000000..89af3848
--- /dev/null
+++ b/libshouldbeinlibc/ugids-auth.c
@@ -0,0 +1,52 @@
+/* Translate user and group ids to/from auth ports
+
+   Copyright (C) 1997 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   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 2, 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdlib.h>
+#include <hurd.h>
+
+#include "ugids.h"
+
+/* Make an auth port from UGIDS and return it in AUTH, using authority in
+   both the auth port FROM and the current auth port.  */
+error_t
+ugids_make_auth (const struct ugids *ugids, auth_t from, auth_t *auth)
+{
+  auth_t cur_auth = getauth ();
+  error_t err =
+    auth_makeauth (cur_auth, &from, MACH_MSG_TYPE_COPY_SEND,
+		   (from == MACH_PORT_NULL) ? 0 : 1,
+		   ugids->eff_uids.ids, ugids->eff_uids.num,
+		   ugids->avail_uids.ids, ugids->avail_uids.num,
+		   ugids->eff_gids.ids, ugids->eff_gids.num,
+		   ugids->avail_gids.ids, ugids->avail_gids.num,
+		   auth);
+  mach_port_deallocate (mach_task_self (), cur_auth);
+  return err;
+}
+
+/* Merge the ids from the auth port  AUTH into UGIDS.  */
+error_t
+ugids_merge_auth (struct ugids *ugids, auth_t auth)
+{
+  return
+    idvec_merge_auth (&ugids->eff_uids, &ugids->avail_uids,
+		      &ugids->eff_gids, &ugids->avail_gids,
+		      auth);
+}