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       getrpcent_r,   getrpcbyname_r,   getrpcbynumber_r   -   get  RPC  entry


       #include <netdb.h>

       int getrpcent_r(struct rpcent *result_buf, char *buf,
                       size_t buflen, struct rpcent **result);

       int getrpcbyname_r(const char *name,
                       struct rpcent *result_buf, char *buf,
                       size_t buflen, struct rpcent **result);

       int getrpcbynumber_r(int number,
                       struct rpcent *result_buf, char *buf,
                       size_t buflen, struct rpcent **result);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       getrpcent_r(), getrpcbyname_r(), getrpcbynumber_r(): _BSD_SOURCE ||


       The  getrpcent_r(),  getrpcbyname_r(), and getrpcbynumber_r() functions
       are  the  reentrant   equivalents   of,   respectively,   getrpcent(3),
       getrpcbyname(3),  and  getrpcbynumber(3).   They differ in the way that
       the rpcent structure is returned, and in the function calling signature
       and return value.  This manual page describes just the differences from
       the nonreentrant functions.

       Instead of  returning  a  pointer  to  a  statically  allocated  rpcent
       structure  as  the  function result, these functions copy the structure
       into the location pointed to by result_buf.

       The buf array is used to store the string  fields  pointed  to  by  the
       returned  rpcent structure.  (The nonreentrant functions allocate these
       strings in static storage.)  The size of this  array  is  specified  in
       buflen.  If buf is too small, the call fails with the error ERANGE, and
       the caller must try again with a larger buffer.  (A  buffer  of  length
       1024 bytes should be sufficient for most applications.)

       If  the  function call successfully obtains an RPC record, then *result
       is set pointing to result_buf; otherwise, *result is set to NULL.


       On success, these functions return  0.   On  error,  a  positive  error
       number is returned.

       On  error,  record not found (getrpcbyname_r(), getrpcbynumber_r()), or
       end of input (getrpcent_r()) result is set to NULL.


       ENOENT (getrpcent_r()) No more records in database.

       ERANGE buf is too small.  Try again with a larger buffer (and increased


       These functions are GNU extensions.  Functions with similar names exist
       on  some  other  systems,  though  typically  with  different   calling


       getrpcent(3), rpc(5)


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       description of the project, and information about reporting  bugs,  can
       be found at