NAME

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

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

       #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);

DESCRIPTION

       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:

       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.

       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.

RETURN VALUE

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

FILES

       /etc/rpc
              RPC program number database.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       ┌────────────────────────────────────────────────────────┬───────────────┬────────────────┐
       │Interface                                               │ Attribute     │ Value          │
       ├────────────────────────────────────────────────────────┼───────────────┼────────────────┤
       │getrpcent(), getrpcbyname(), getrpcbynumber()           │ Thread safety │ MT-Unsafe      │
       ├────────────────────────────────────────────────────────┼───────────────┼────────────────┤
       │setrpcent(), endrpcent()                                │ Thread safety │ MT-Safe locale │
       └────────────────────────────────────────────────────────┴───────────────┴────────────────┘

STANDARDS

       Not in POSIX.1.  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)