mirror of https://github.com/mkerrisk/man-pages
113 lines
2.5 KiB
Groff
113 lines
2.5 KiB
Groff
.\" This page was taken from the 4.4BSD-Lite CDROM (BSD license)
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.\"
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.\" %%%LICENSE_START(BSD_ONELINE_CDROM)
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.\" This page was taken from the 4.4BSD-Lite CDROM (BSD license)
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.\" %%%LICENSE_END
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.\"
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.\" @(#)getrpcent.3n 2.2 88/08/02 4.0 RPCSRC; from 1.11 88/03/14 SMI
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.TH GETRPCENT 3 2008-08-19 "" "Linux Programmer's Manual"
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.SH NAME
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getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent \- get
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RPC entry
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.SH SYNOPSIS
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.nf
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.B #include <netdb.h>
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.BI "struct rpcent *getrpcent(void);"
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.BI "struct rpcent *getrpcbyname(char *" name );
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.BI "struct rpcent *getrpcbynumber(int " number );
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.BI "void setrpcent(int " stayopen );
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.BI "void endrpcent(void);"
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.fi
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.SH DESCRIPTION
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.LP
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The
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.BR getrpcent (),
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.BR getrpcbyname (),
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and
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.BR getrpcbynumber ()
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functions each return a pointer to an object with the
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following structure containing the broken-out
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fields of an entry in the RPC program number data base.
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.in +4n
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.nf
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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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.fi
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.in
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.LP
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The members of this structure are:
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.RS 4
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.TP 12
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.I r_name
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The name of the server for this RPC program.
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.TP
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.I r_aliases
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A NULL-terminated list of alternate names for the RPC program.
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.TP
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.I r_number
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The RPC program number for this service.
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.RE
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.LP
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The
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.BR getrpcent ()
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function reads the next entry from the database.
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A connection is opened to the database if necessary.
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.LP
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The
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.BR setrpcent ()
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function opens a connection to the database,
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and sets the next entry to the first entry.
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If \fIstayopen\fP is nonzero,
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then the connection to the database
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will not be closed between calls to one of the
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.BR getrpc* ()
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functions.
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.LP
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The
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.BR endrpcent ()
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function closes the connection to the database.
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.LP
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The
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.BR getrpcbyname ()
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and
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.BR getrpcbynumber ()
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functions 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 RETURN VALUE
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On success,
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.BR getrpcent (),
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.BR getrpcbyname (),
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and
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.BR getrpcbynumber ()
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return a pointer to a statically allocated
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.I rpcent
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structure.
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A NULL pointer is returned on EOF or error.
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.SH FILES
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.TP
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.I /etc/rpc
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RPC program number database.
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.SH CONFORMING TO
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Not in POSIX.1-2001.
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Present on the BSDs, Solaris, and many other systems.
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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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.SH SEE ALSO
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.BR getrpcent_r (3),
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.BR rpc (5),
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.BR rpcinfo (8),
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.BR ypserv (8)
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