blob: 009028e30ef1f272d2d1ad9ffa8b02c781d75df0 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* Copyright (C) 1992-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/utsname.h>
/* Put the name of the current host in no more than LEN bytes of NAME.
The result is null-terminated if LEN is large enough for the full
name and the terminator. */
int
__gethostname (char *name, size_t len)
{
struct utsname buf;
size_t node_len;
if (__uname (&buf))
return -1;
node_len = strlen (buf.nodename) + 1;
memcpy (name, buf.nodename, len < node_len ? len : node_len);
if (node_len > len)
{
__set_errno (ENAMETOOLONG);
return -1;
}
return 0;
}
weak_alias (__gethostname, gethostname)
|
