rpcbind(3NSL) Networking Services Library Functions rpcbind(3NSL)NAME
rpcbind, rpcb_getmaps, rpcb_getaddr, rpcb_gettime, rpcb_rmtcall,
rpcb_set, rpcb_unset - library routines for RPC bind service
SYNOPSIS
#include <rpc/rpc.h>
struct rpcblist *rpcb_getmaps(const struct netconfig *nnetconf, const
char *host);
bool_t rpcb_getaddr(const rpcprog_t prognum, const rpcvers_t versnum,
const struct netconfig *netconf, struct netbuf *ssvcaddr, 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 caddr_t in, const xdr‐
proc_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. rpcbind maintains a list of mappings between pro‐
grams and their universal addresses. See rpcbind(1M).
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 contains the RPC
status. See rpc_clnt_create(3NSL).
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. This routine is particularly useful for secure RPC.
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 connection‐
less 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(3NSL) 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 rpcbind 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 trans‐
ports.
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 net‐
config database. This routine returns TRUE if it succeeds, FALSE
otherwise. See also svc_reg() in rpc_svc_calls (3NSL). 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, ver‐
snum, all-transports] and the addresses on the machine's rpcbind
service. This routine returns TRUE if it succeeds, FALSE other‐
wise. Only the owner of the service or the super-user can destroy
the mapping. See also svc_unreg() in rpc_svc_calls(3NSL).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOrpcbind(1M), rpcinfo(1M), rpc_clnt_calls(3NSL), rpc_clnt_create(3NSL),
rpc_svc_calls(3NSL), attributes(5)SunOS 5.10 20 Feb 1998 rpcbind(3NSL)
