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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | VERSIONS | STANDARDS | SEE ALSO | COLOPHON |
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getrpcent_r(3) Library Functions Manual getrpcent_r(3)
getrpcent_r, getrpcbyname_r, getrpcbynumber_r - get RPC entry
(reentrant)
Standard C library (libc, -lc)
#include <netdb.h>
int getrpcent_r(struct rpcent *result_buf, char buf[.buflen],
size_t buflen, struct rpcent **result);
int getrpcbyname_r(const char *name,
struct rpcent *result_buf, char buf[.buflen],
size_t buflen, struct rpcent **result);
int getrpcbynumber_r(int number,
struct rpcent *result_buf, char buf[.buflen],
size_t buflen, struct rpcent **result);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
getrpcent_r(), getrpcbyname_r(), getrpcbynumber_r():
Since glibc 2.19:
_DEFAULT_SOURCE
glibc 2.19 and earlier:
_BSD_SOURCE || _SVID_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, 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.
ENOENT (getrpcent_r()) No more records in database.
ERANGE buf is too small. Try again with a larger buffer (and
increased buflen).
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────┬───────────────┬────────────────┐
│ Interface │ Attribute │ Value │
├──────────────────────────────┼───────────────┼────────────────┤
│ getrpcent_r(), │ Thread safety │ MT-Safe locale │
│ getrpcbyname_r(), │ │ │
│ getrpcbynumber_r() │ │ │
└──────────────────────────────┴───────────────┴────────────────┘
Functions with similar names exist on some other systems, though
typically with different calling signatures.
GNU.
getrpcent(3), rpc(5)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
man-pages@man7.org
Linux man-pages 6.9.1 2024-05-02 getrpcent_r(3)
Pages that refer to this page: getrpcent(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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