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113 lines
2.3 KiB
Groff
113 lines
2.3 KiB
Groff
.\" @(#)getrpcent.3n 2.2 88/08/02 4.0 RPCSRC; from 1.11 88/03/14 SMI
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.\" $NetBSD: getrpcent.3,v 1.6 1998/02/05 18:49:06 perry Exp $
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.\" $FreeBSD: src/lib/libc/rpc/getrpcent.3,v 1.18 2005/01/20 09:17:04 ru Exp $
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.\"
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.Dd December 14, 1987
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.Dt GETRPCENT 3
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.Os
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.Sh NAME
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.Nm getrpcent ,
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.Nm getrpcbyname ,
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.Nm getrpcbynumber ,
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.Nm endrpcent ,
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.Nm setrpcent
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.Nd get RPC entry
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In rpc/rpc.h
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.Ft struct rpcent *
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.Fn getrpcent void
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.Ft struct rpcent *
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.Fn getrpcbyname "char *name"
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.Ft struct rpcent *
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.Fn getrpcbynumber "int number"
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.Ft void
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.Fn setrpcent "int stayopen"
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.Ft void
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.Fn endrpcent void
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.Sh DESCRIPTION
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The
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.Fn getrpcent ,
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.Fn getrpcbyname ,
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and
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.Fn getrpcbynumber
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functions
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each return a pointer to an object with the
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following structure
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containing the broken-out
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fields of a line in the rpc program number data base,
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.Pa /etc/rpc :
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.Bd -literal
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struct rpcent {
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char *r_name; /* name of server for this rpc program */
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char **r_aliases; /* alias list */
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long r_number; /* rpc program number */
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};
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.Ed
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.Pp
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The members of this structure are:
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.Bl -tag -width r_aliases -offset indent
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.It Va r_name
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The name of the server for this rpc program.
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.It Va r_aliases
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A zero terminated list of alternate names for the rpc program.
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.It Va r_number
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The rpc program number for this service.
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.El
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.Pp
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The
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.Fn getrpcent
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function
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reads the next line of the file, opening the file if necessary.
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.Pp
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The
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.Fn setrpcent
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function
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opens and rewinds the file.
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If the
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.Fa stayopen
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flag is non-zero,
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the net data base will not be closed after each call to
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.Fn getrpcent
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(either directly, or indirectly through one of
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the other
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.Dq getrpc
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calls).
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.Pp
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The
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.Fn endrpcent
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function
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closes the file.
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.Pp
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The
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.Fn getrpcbyname
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and
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.Fn getrpcbynumber
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functions
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sequentially search from the beginning
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of the file until a matching rpc program name or
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program number is found, or until end-of-file is encountered.
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.Sh FILES
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.Bl -tag -width /etc/rpc -compact
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.It Pa /etc/rpc
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.El
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.Sh DIAGNOSTICS
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A
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.Dv NULL
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pointer is returned on
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.Dv EOF
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or error.
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.Sh SEE ALSO
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.Xr rpc 5 ,
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.Xr rpcinfo 8 ,
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.Xr ypserv 8
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.Sh BUGS
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.\"All information
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.\"is contained in a static area
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.\"so it must be copied if it is
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.\"to be saved.
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The data space used by
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these functions is thread-specific; if future use requires the data, it should be
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copied before any subsequent calls to these functions overwrite it.
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