rpc_localaddr(9) [centos man page]

RPC_LOCALADDR(9)						 Linux Networking						  RPC_LOCALADDR(9)

NAME

       rpc_localaddr - discover local endpoint address for an RPC client

SYNOPSIS

       int rpc_localaddr(struct rpc_clnt * clnt, struct sockaddr * buf, size_t buflen);

ARGUMENTS

       clnt
	   RPC client structure

       buf
	   target buffer

       buflen
	   size of target buffer, in bytes

DESCRIPTION

       Returns zero and fills in "buf" and "buflen" if successful; otherwise, a negative errno is returned.

       This works even if the underlying transport is not currently connected, or if the upper layer never previously provided a source address.

THE RESULT OF THIS FUNCTION CALL IS TRANSIENT

       multiple calls in succession may give different results, depending on how local networking configuration changes over time.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							  RPC_LOCALADDR(9)

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

NAME

       getrpcent_r, getrpcbyname_r, getrpcbynumber_r - get RPC entry (reentrant)

SYNOPSIS

       #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 || _SVID_SOURCE

DESCRIPTION

       The  getrpcent_r(),  getrpcbyname_r(), and getrpcbynumber_r() functions are the reentrant equivalents of, respectively, getrpcent(3), getr-
       pcbyname(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.

RETURN VALUE

       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.

ERRORS

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

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

CONFORMING TO

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

SEE ALSO

       getrpcent(3), rpc(5)

COLOPHON

       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)