#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 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.