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getrpcbynumber.3

GETRPCENT

Section: Linux Programmer's Manual (3)
Updated: 2008-08-19
Index Return to Main Contents
 

NAME

getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent - get RPC entry  

SYNOPSIS

#include <netdb.h>

struct rpcent *getrpcent(void);

struct rpcent *getrpcbyname(char *name);

struct rpcent *getrpcbynumber(int number);

void setrpcent(int stayopen);

void endrpcent(void);
 

DESCRIPTION

getrpcent(), getrpcbyname(), and getrpcbynumber() each return a pointer to an object with the following structure containing the broken-out fields of an entry in the RPC program number data base.


struct rpcent {
    char  *r_name;     /* name of server for this RPC program */
    char **r_aliases;  /* alias list */
    long   r_number;   /* RPC program number */
};

The members of this structure are:

r_name
The name of the server for this RPC program.
r_aliases
A NULL-terminated list of alternate names for the RPC program.
r_number
The RPC program number for this service.

getrpcent() reads the next entry from the database. A connection is opened to the database if necessary.

setrpcent() function opens a connection to the database, and sets the next entry to the first entry. If stayopen is non-zero, then the connection to the database will not be closed between calls to one of the getrpc*() functions.

The endrpcent() function closes the connection to the database.

getrpcbyname() and 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.  

RETURN VALUE

On success, getrpcent(), getrpcbyname(), and getrpcbynumber() return a pointer to a statically allocated rpcent structure. A NULL pointer is returned on EOF or error.  

FILES

/etc/rpc
RPC program number database.
 

CONFORMING TO

Not in POSIX.1-2001. Present on the BSDs, Solaris, and many other systems.  

BUGS

All information is contained in a static area so it must be copied if it is to be saved.  

SEE ALSO

getrpcent_r(3), rpc(5), rpcinfo(8), ypserv(8)  

COLOPHON

This page is part of release 3.21 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
FILES
CONFORMING TO
BUGS
SEE ALSO
COLOPHON

 

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