| xf.li | bfc6e71 | 2025-02-07 01:54:34 -0800 | [diff] [blame^] | 1 | /* net/if.h -- declarations for inquiring about network interfaces |
| 2 | Copyright (C) 2000-2016 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 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _NET_IF_H |
| 20 | |
| 21 | #define _NET_IF_H 1 |
| 22 | #include <features.h> |
| 23 | |
| 24 | |
| 25 | __BEGIN_DECLS |
| 26 | |
| 27 | /* Convert an interface name to an index, and vice versa. */ |
| 28 | |
| 29 | extern unsigned int if_nametoindex (const char *__ifname) __THROW; |
| 30 | extern char *if_indextoname (unsigned int __ifindex, char *__ifname) __THROW; |
| 31 | |
| 32 | /* Return a list of all interfaces and their indices. */ |
| 33 | |
| 34 | struct if_nameindex |
| 35 | { |
| 36 | unsigned int if_index; /* 1, 2, ... */ |
| 37 | char *if_name; /* null terminated name: "eth0", ... */ |
| 38 | }; |
| 39 | |
| 40 | extern struct if_nameindex *if_nameindex (void) __THROW; |
| 41 | |
| 42 | /* Free the data returned from if_nameindex. */ |
| 43 | |
| 44 | extern void if_freenameindex (struct if_nameindex *__ptr) __THROW; |
| 45 | |
| 46 | __END_DECLS |
| 47 | |
| 48 | |
| 49 | #endif /* net/if.h */ |