blob: 216e78be49b082318b15c228b44e7f29cd1b9143 (
plain)
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
47
48
49
50
51
52
53
54
|
/* xgethostname.c -- return current hostname with unlimited length
Copyright (C) 1992 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Jim Meyering, meyering@comco.com */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
int gethostname ();
char *xmalloc ();
char *xrealloc ();
#ifndef INITIAL_HOSTNAME_LENGTH
#define INITIAL_HOSTNAME_LENGTH 33
#endif
char *
xgethostname ()
{
char *hostname;
size_t size;
int err;
size = INITIAL_HOSTNAME_LENGTH;
hostname = xmalloc (size);
while (1)
{
hostname[size - 1] = '\0';
err = gethostname (hostname, size);
if (err == 0 && hostname[size - 1] == '\0')
break;
size *= 2;
hostname = xrealloc (hostname, size);
}
return hostname;
}
|
