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GETRPCENT_R(3)             Linux Programmer's Manual            GETRPCENT_R(3)

       getrpcent_r,  getrpcbyname_r,  getrpcbynumber_r  - get RPC entry (reen-

       #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), getrpcby-
       name(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 non-
       reentrant functions.

       Instead of returning a pointer to a statically allocated rpcent  struc-
       ture  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  num-
       ber 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  signa-

       getrpcent(3), rpc(5)

       This  page  is  part of release 3.25 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

GNU                               2008-08-19                    GETRPCENT_R(3)

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