/*  $Id$
**
**  Internal support functions for the wallet client.
**
**  Written by Russ Allbery <rra@stanford.edu>
**  Copyright 2007 Board of Trustees, Leland Stanford Jr. University
**
**  See README for licensing terms.
*/

#ifndef CLIENT_INTERNAL_H
#define CLIENT_INTERNAL_H 1

#include <sys/types.h>
#include <util/util.h>

/* Forward declarations to avoid unnecessary includes. */
struct remctl;

/* Temporary until we have some real configuration. */
#ifndef SERVER
# define SERVER "wallet.stanford.edu"
#endif
#ifndef PORT
# define PORT 4444
#endif

BEGIN_DECLS

/* Given a remctl object, the type for the wallet interface, the name of a
   keytab object, and a file name, call the correct wallet commands to
   download a keytab and write it to that file. */
void get_keytab(struct remctl *, const char *type, const char *name,
                const char *file);

/* Given a filename, some data, and a length, write that data to the given
   file safely and atomically by creating file.new, writing the data, linking
   file to file.bak, and then renaming file.new to file. */
void write_file(const char *name, const void *data, size_t length);

/* Given a srvtab file, the Kerberos v5 principal, and the keytab file, write
   a srvtab file for the corresponding Kerberos v4 principal. */
void write_srvtab(const char *srvtab, const char *principal,
                  const char *keytab);

END_DECLS

#endif /* !CLIENT_INTERNAL_H */