RUSERS(3RPC) RPC Library Functions RUSERS(3RPC)

NAME

rusers, rnusers - return information about users on remote machines

SYNOPSIS

cc [ flag ... ] file ... -lrpcsvc [ library ... ]
#include <rpc/rpc.h>
#include <rpcsvc/rusers.h>

enum clnt_stat rusers(char *host, struct utmpidlearr *up);


int rnusers(char *host);

PROTOCOL

/usr/include/rpcsvc/rusers.x

DESCRIPTION

These routines require that the rpc.rusersd(8) daemon be configured
and available on the remote system indicated by host. The rusers()
protocol is used to retrieve information about users logged in on the
remote system.


rusers() fills the utmpidlearr structure with data about host, and
returns 0 if successful. up must point to an allocated utmpidlearr
structure. If rusers() returns successful it will have allocated data
structures within the up structure, which should be freed with
xdr_free(3NSL) when you no longer need them:

xdr_free(xdr_utimpidlearr, up);


On error, the returned value can be interpreted as an enum clnt_stat
and can be displayed with clnt_perror(3NSL) or clnt_sperrno(3NSL).


See the header <rpcsvc/rusers.h> for a definition of struct
utmpidlearr.


rnusers() returns the number of users logged on to host (-1 if it
cannot determine that number).


The following XDR routines are available in librpcsvc:

xdr_utmpidlearr

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|MT-Level | MT-Safe |
+---------------+-----------------+

SEE ALSO

rusers(1), rpc_clnt_calls(3NSL), xdr_free(3NSL), attributes(7),
rpc.rusersd(8)

December 30, 1996 RUSERS(3RPC)