GETRPCENT_R(3) Linux Programmer's Manual GETRPCENT_R(3)NAME
getrpcent_r, getrpcbyname_r, getrpcbynumber_r - get RPC entry (reen‐
trant)
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), 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.
RETURN VALUE
On success, these functions return 0. On error, they return one of the
positive error numbers listed in ERRORS.
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 signa‐
tures.
SEE ALSOgetrpcent(3), rpc(5)COLOPHON
This page is part of release 3.54 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 2010-09-10 GETRPCENT_R(3)
