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git.ipfire.org Git - thirdparty/glibc.git/blob - inet/ether_hton.c
cccae17f107779bc95b5b3ba7ec88e5d819a5543
1 /* Copyright (C) 1996-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
20 #include <netinet/ether.h>
21 #include <netinet/if_ether.h>
24 #include "../nss/nsswitch.h"
26 /* Type of the lookup function we need here. */
27 typedef int (*lookup_function
) (const char *, struct etherent
*, char *, int,
31 ether_hostton (const char *hostname
, struct ether_addr
*addr
)
40 enum nss_status status
= NSS_STATUS_UNAVAIL
;
41 struct etherent etherent
;
43 no_more
= __nss_ethers_lookup2 (&nip
, "gethostton_r", NULL
, &fct
.ptr
);
49 status
= (*fct
.f
) (hostname
, ðerent
, buffer
, sizeof buffer
, &errno
);
51 no_more
= __nss_next2 (&nip
, "gethostton_r", NULL
, &fct
.ptr
, status
, 0);
54 if (status
== NSS_STATUS_SUCCESS
)
55 memcpy (addr
, etherent
.e_addr
.ether_addr_octet
,
56 sizeof (struct ether_addr
));
58 return status
== NSS_STATUS_SUCCESS
? 0 : -1;