projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 4f173e2c | 1 | /* net/if.h -- declarations for inquiring about network interfaces |
| 581c785b | 2 | Copyright (C) 2000-2022 Free Software Foundation, Inc. |
| 4f173e2c RM |
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 | |
| 41bdb6e2 AJ |
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. | |
| 4f173e2c RM |
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 | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| 4f173e2c | 14 | |
| 41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 | 16 | License along with the GNU C Library; if not, see |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 4f173e2c RM |
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 | ||
| a784e502 | 29 | extern unsigned int if_nametoindex (const char *__ifname) __THROW; |
| 4f173e2c RM |
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 */ |