95 lines
1.9 KiB
Groff
95 lines
1.9 KiB
Groff
.\" @(#)getrpcent.3n 2.2 88/08/02 4.0 RPCSRC; from 1.11 88/03/14 SMI
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.Dd "December 14, 1987"
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.Dt GETRPCENT 3
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.Sh NAME
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.Os
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.Nm getrpcent ,
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.Nm getrpcbyname ,
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.Nm getrpcbynumber
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.Nd get RPC entry
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.Sh SYNOPSIS
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.Fd #include <netdb.h>
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.Ft struct rpcent *
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.Fn getrpcent
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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
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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 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_aliasesxxx
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.It Fa r_name
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The name of the server for this rpc program.
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.It Fa r_aliases
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A zero terminated list of alternate names for the rpc program.
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.It Fa 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 reads the next line of the file, opening the file if necessary.
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The
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.Nm getrpcent
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function opens and rewinds the file. 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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.Fn getrpcent
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function family.
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.Pp
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.Fn endrpcent
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closes the file.
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.Pp
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.Fn getrpcbyname
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and
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.Fn getrpcbynumber
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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 "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 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 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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