1 | /* uname -- Report basic information about the system. Generic version. |
2 | Copyright (C) 1991-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
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. |
9 | |
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. |
14 | |
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/>. */ |
18 | |
19 | #include <errno.h> |
20 | #include <string.h> |
21 | #include <sys/utsname.h> |
22 | #include <unistd.h> |
23 | |
24 | /* This file defines UNAME_* to string constants. */ |
25 | #include <uname-values.h> |
26 | |
27 | /* Put information about the system in NAME. */ |
28 | int |
29 | __uname (struct utsname *name) |
30 | { |
31 | int save; |
32 | |
33 | if (name == NULL) |
34 | { |
35 | __set_errno (EINVAL); |
36 | return -1; |
37 | } |
38 | |
39 | save = errno; |
40 | if (__gethostname (name: name->nodename, len: sizeof (name->nodename)) < 0) |
41 | { |
42 | if (errno == ENOSYS) |
43 | { |
44 | /* Hostname is meaningless for this machine. */ |
45 | name->nodename[0] = '\0'; |
46 | __set_errno (save); |
47 | } |
48 | #ifdef ENAMETOOLONG |
49 | else if (errno == ENAMETOOLONG) |
50 | /* The name was truncated. */ |
51 | __set_errno (save); |
52 | #endif |
53 | else |
54 | return -1; |
55 | } |
56 | strncpy (name->sysname, UNAME_SYSNAME, sizeof (name->sysname)); |
57 | strncpy (name->release, UNAME_RELEASE, sizeof (name->release)); |
58 | strncpy (name->version, UNAME_VERSION, sizeof (name->version)); |
59 | strncpy (name->machine, UNAME_MACHINE, sizeof (name->machine)); |
60 | |
61 | return 0; |
62 | } |
63 | weak_alias (__uname, uname) |
64 | libc_hidden_def (__uname) |
65 | libc_hidden_def (uname) |
66 | |