1 files changed, 68 insertions, 2 deletions
diff --git a/libiohelp/iohelp.h b/libiohelp/iohelp.h
index 2897653d..a52d5985 100644
--- a/libiohelp/iohelp.h
+++ b/libiohelp/iohelp.h
@@ -1,5 +1,5 @@
-/* 
-   Copyright (C) 1993, 1994, 1996 Free Software Foundation
+/* Library providing helper functions for io servers.
+   Copyright (C) 1993,94,96,98,2001,02 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
@@ -64,4 +64,70 @@ void iohelp_fetch_shared_data (void *);
 void iohelp_put_shared_data (void *);
 
 
+
+/* User identification */
+
+#include <idvec.h>
+
+struct iouser
+{
+  struct idvec *uids, *gids;
+  void *hook; /* Never used by iohelp library */
+};
+
+/* Return a copy of IOUSER in CLONE.  On error, *CLONE is set to NULL.  */
+error_t iohelp_dup_iouser (struct iouser **clone, struct iouser *iouser);
+
+/* Free a reference to IOUSER. */
+void iohelp_free_iouser (struct iouser *iouser);
+
+/* Create a new IOUSER in USER for the specified idvecs.  On error, *USER
+   is set to NULL.  */
+error_t iohelp_create_iouser (struct iouser **user, struct idvec *uids,
+			      struct idvec *gids);
+
+/* Create a new IOUSER in USER for the specified arrays.  On error, *USER
+   is set to NULL.  */
+error_t iohelp_create_complex_iouser (struct iouser **user,
+				      const uid_t *uids, int nuids,
+				      const gid_t *gids, int ngids);
+
+/* Create a new IOUSER in USER for the specified uid and gid.  On error,
+   *USER is set to NULL.  */
+error_t iohelp_create_simple_iouser (struct iouser **user,
+				     uid_t uid, gid_t gid);
+
+/* Create a new IOUSER in USER with no identity.  On error, *USER is set
+   to NULL.  */
+error_t iohelp_create_empty_iouser (struct iouser **user);
+
+/* Create a new IOUSER in NEW_USER that restricts OLD_USER to the subset
+   specified by the two ID lists.  This is appropriate for implementing
+   io_restrict_auth.  */
+error_t iohelp_restrict_iouser (struct iouser **new_user,
+				const struct iouser *old_user,
+				const uid_t *uids, int nuids,
+				const gid_t *gids, int ngids);
+
+/* Conduct a reauthentication transaction, returning a new iouser in
+   USER.  AUTHSERVER is the I/O servers auth port.  The rendezvous port
+   provided by the user is REND_PORT.  If the transaction cannot be
+   completed, return zero, unless PERMIT_FAILURE is non-zero.  If
+   PERMIT_FAILURE is nonzero, then should the transaction fail, return
+   an iouser that has no ids.  The new port to be sent to the user is
+   newright.  On error, *USER is set to NULL.  */
+error_t iohelp_reauth (struct iouser **user, auth_t authserver,
+		       mach_port_t rend_port, mach_port_t newright,
+		       int permit_failure);
+
+
+/* Puts data from the malloced buffer BUF, LEN bytes long, into RBUF & RLEN,
+   suitable for returning from a mach rpc.  If LEN > 0, BUF is freed,
+   regardless of whether an error is returned or not.  */
+error_t iohelp_return_malloced_buffer (char *buf, size_t len,
+				       char **rbuf,
+				       mach_msg_type_number_t *rlen);
+
+
+
 #endif