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.\" $OpenBSD: getrpcent.3,v 1.11 2007/05/31 19:19:30 jmc Exp $
.\"
.\" Sun RPC is a product of Sun Microsystems, Inc. and is provided for
.\" unrestricted use provided that this legend is included on all tape
.\" media and as a part of the software program in whole or part. Users
.\" may copy or modify Sun RPC without charge, but are not authorized
.\" to license or distribute it to anyone else except as part of a product or
.\" program developed by the user.
.\"
.\" SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
.\" WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
.\"
.\" Sun RPC is provided with no support and without any obligation on the
.\" part of Sun Microsystems, Inc. to assist in its use, correction,
.\" modification or enhancement.
.\"
.\" SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
.\" INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
.\" OR ANY PART THEREOF.
.\"
.\" In no event will Sun Microsystems, Inc. be liable for any lost revenue
.\" or profits or other special, indirect and consequential damages, even if
.\" Sun has been advised of the possibility of such damages.
.\"
.\" Sun Microsystems, Inc.
.\" 2550 Garcia Avenue
.\" Mountain View, California 94043
.\"
.Dd $Mdocdate: May 31 2007 $
.Dt GETRPCENT 3
.Os
.Sh NAME
.Nm getrpcent ,
.Nm getrpcbyname ,
.Nm getrpcbynumber ,
.Nm endrpcent ,
.Nm setrpcent
.Nd get RPC entry
.Sh SYNOPSIS
.Fd #include <rpc/rpc.h>
.Ft struct rpcent *
.Fn getrpcent void
.Ft struct rpcent *
.Fn getrpcbyname "char *name"
.Ft struct rpcent *
.Fn getrpcbynumber "int number"
.Ft void
.Fn setrpcent "int stayopen"
.Ft void
.Fn endrpcent void
.Sh DESCRIPTION
.Fn getrpcent ,
.Fn getrpcbyname ,
and
.Fn getrpcbynumber ,
each return a pointer to an object with the
following structure
containing the broken-out
fields of a line in the rpc program number database,
.Pa /etc/rpc :
.Bd -literal -offset 2n
struct rpcent {
char *r_name; /* name of server for this rpc program */
char **r_aliases; /* alias list */
int r_number; /* rpc program number */
};
.Ed
.Pp
The members of this structure are:
.Bl -tag -width r_aliases -offset indent
.It r_name
The name of the server for this rpc program.
.It r_aliases
A zero terminated list of alternate names for the rpc program.
.It r_number
The rpc program number for this service.
.El
.Pp
.Fn getrpcent
reads the next line of the file, opening the file if necessary.
.Pp
.Fn setrpcent
opens and rewinds the file.
If the
.Fa stayopen
flag is non-zero,
the net database will not be closed after each call to
.Fn getrpcent
(either directly, or indirectly through one of
the other
.Dq getrpc
calls).
.Pp
.Fn endrpcent
closes the file.
.Pp
.Fn getrpcbyname
and
.Fn getrpcbynumber
sequentially search from the beginning
of the file until a matching rpc program name or
program number is found, or until end-of-file is encountered.
.Sh FILES
.Pa /etc/rpc
.Sh DIAGNOSTICS
A
.Dv NULL
pointer is returned on
.Dv EOF
or error.
.Sh SEE ALSO
.Xr rpc 5 ,
.Xr rpcinfo 8 ,
.Xr ypserv 8
.Sh BUGS
All information
is contained in a static area
so it must be copied if it is
to be saved.
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