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
|
/* This file is part of GNU Dico
Copyright (C) 2008-2024 Sergey Poznyakoff
GNU Dico 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 3, or (at your option)
any later version.
GNU Dico 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 GNU Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include <netdb.h>
#include <xdico.h>
#include <xgethostname.h>
#include <xgetdomainname.h>
char *
xdico_local_hostname(void)
{
struct addrinfo *addr, hints;
char *hostpart = xgethostname();
char *ret;
memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_CANONNAME;
if (getaddrinfo(hostpart, NULL, &hints, &addr) == 0) {
ret = xstrdup(addr->ai_canonname);
freeaddrinfo(addr);
} else {
char *domainpart = xgetdomainname();
if (domainpart && domainpart[0] && strcmp(domainpart, "(none)")) {
ret = xmalloc(strlen(hostpart) + 1
+ strlen(domainpart) + 1);
strcpy(ret, hostpart);
strcat(ret, ".");
strcat(ret, domainpart);
free(hostpart);
} else
ret = hostpart;
free(domainpart);
}
return ret;
}
|
