| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1994-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | /* Put the name of the current YP domain in no more than LEN bytes of NAME. |
| 19 | The result is null-terminated if LEN is large enough for the full |
| 20 | name and the terminator. */ |
| 21 | |
| 22 | #include <errno.h> |
| 23 | #include <unistd.h> |
| 24 | #include <sys/param.h> |
| 25 | #include <sys/utsname.h> |
| 26 | #include <string.h> |
| 27 | |
| 28 | #if _UTSNAME_DOMAIN_LENGTH |
| 29 | /* The `uname' information includes the domain name. */ |
| 30 | |
| 31 | int |
| 32 | getdomainname (char *name, size_t len) |
| 33 | { |
| 34 | struct utsname u; |
| 35 | size_t u_len; |
| 36 | |
| 37 | if (uname (&u) < 0) |
| 38 | return -1; |
| 39 | |
| 40 | u_len = strlen (u.domainname); |
| 41 | memcpy (name, u.domainname, MIN (u_len + 1, len)); |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | #else |
| 46 | |
| 47 | int |
| 48 | getdomainname (char *name, size_t len) |
| 49 | { |
| 50 | __set_errno (ENOSYS); |
| 51 | return -1; |
| 52 | } |
| 53 | |
| 54 | stub_warning (getdomainname) |
| 55 | |
| 56 | #endif |
| 57 | |
| 58 | libc_hidden_def (getdomainname) |