NAME
rpcb_getmaps,
rpcb_getaddr,
rpcb_gettime,
rpcb_rmtcall,
rpcb_set,
rpcb_unset —
library routines for RPC bind service
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <rpc/rpc.h>
struct rpcblist *
rpcb_getmaps(
const
struct netconfig *netconf,
const char *host);
bool_t
rpcb_getaddr(
const
rpcprog_t prognum,
const
rpcvers_t versnum,
const
struct netconfig *netconf,
struct netbuf *svcaddr,
const char *host);
bool_t
rpcb_gettime(
const
char *host,
time_t *
timep);
enum clnt_stat
rpcb_rmtcall(
const
struct netconfig *netconf,
const char *host,
const rpcprog_t prognum, const
rpcvers_t versnum,
const
rpcproc_t procnum, const xdrproc_t inproc,
const char *in,
const xdrproc_t outproc,
caddr_t out,
const struct timeval tout, struct
netbuf *svcaddr);
bool_t
rpcb_set(
const
rpcprog_t prognum,
const
rpcvers_t versnum,
const
struct netconfig *netconf,
const struct netbuf
*svcaddr);
bool_t
rpcb_unset(
const
rpcprog_t prognum,
const
rpcvers_t versnum,
const
struct netconfig *netconf);
DESCRIPTION
These routines allow client C programs to make procedure calls to the RPC binder
service. (see
rpcbind(8))
maintains a list of mappings between programs and their universal addresses.
ROUTINES
-
-
- rpcb_getmaps()
- An interface to the rpcbind service, which returns a list
of the current RPC program-to-address mappings on
host. It uses the transport specified through
netconf to contact the remote rpcbind service on
host. This routine will return
NULL
, if the remote rpcbind could not be
contacted.
-
-
- rpcb_getaddr()
- An interface to the rpcbind service, which finds the
address of the service on host that is registered
with program number prognum, version
versnum, and speaks the transport protocol
associated with netconf. The address found is
returned in svcaddr. svcaddr
should be preallocated. This routine returns
TRUE
if it succeeds. A return value of FALSE
means that
the mapping does not exist or that the RPC system failed to contact the
remote rpcbind service. In the latter case, the global variable
rpc_createerr (see
rpc_clnt_create(3)
contains the RPC status.
-
-
- rpcb_gettime()
- This routine returns the time on host
in timep. If host is
NULL
, rpcb_gettime() returns the
time on its own machine. This routine returns TRUE
if it succeeds, FALSE
if it fails.
rpcb_gettime() can be used to synchronize the time
between the client and the remote server.
-
-
- rpcb_rmtcall()
- An interface to the rpcbind service, which instructs
rpcbind on host to make an RPC call on your behalf
to a procedure on that host. The netconfig() structure
should correspond to a connectionless transport. The parameter
svcaddr will be modified to the server's address if
the procedure succeeds (see rpc_call() and
clnt_call() in
rpc_clnt_calls(3)
for the definitions of other parameters).
This procedure should normally be used for a ``ping'' and nothing else. This
routine allows programs to do lookup and call, all in one step.
Note: Even if the server is not running rpcb_rmtcall()
does not return any error messages to the caller. In such a case, the
caller times out.
Note: rpcb_rmtcall() is only available for connectionless
transports.
-
-
- rpcb_set()
- An interface to the rpcbind service, which establishes a
mapping between the triple [ prognum,
versnum, netconf->nc_netid]
and svcaddr on the machine's rpcbind service. The
value of nc_netid must correspond to a network
identifier that is defined by the netconfig database. This routine returns
TRUE
if it succeeds, FALSE
otherwise. (See also svc_reg() in
rpc_svc_calls(3). If
there already exists such an entry with rpcbind,
rpcb_set() will fail.
-
-
- rpcb_unset()
- An interface to the rpcbind service, which destroys the
mapping between the triple [ prognum,
versnum, netconf->nc_netid]
and the address on the machine's rpcbind service. If
netconf is
NULL
,
rpcb_unset() destroys all mapping between the triple [
prognum, versnum,
all-transports] and the addresses on the machine's
rpcbind service. This routine returns TRUE
if it
succeeds, FALSE
otherwise. Only the owner of the
service or the super-user can destroy the mapping. (See also
svc_unreg() in
rpc_svc_calls(3).
SEE ALSO
rpc_clnt_calls(3),
rpc_svc_calls(3),
rpcbind(8),
rpcinfo(8)