#include <netdb.h> struct rpcent *getrpcent(void); struct rpcent *getrpcbyname(const char *name); struct rpcent *getrpcbynumber(int number); void setrpcent(int stayopen); void endrpcent(void);
The getrpcent(), getrpcbyname(), and getrpcbynumber() functions 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:
The getrpcent() function reads the next entry from the database. A connection is opened to the database if necessary.
The 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.
The getrpcbyname() and getrpcbynumber() functions 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.