#include <netdb.h> struct rpcent *getrpcent(void); struct rpcent *getrpcbyname(char *name); struct rpcent *getrpcbynumber(int number); void setrpcent(int stayopen); void endrpcent(void);
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:
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 nonzero, 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.