File: ifindex.c

package info (click to toggle)
strace 6.13%2Bds-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 71,488 kB
  • sloc: ansic: 176,497; sh: 9,675; makefile: 4,133; cpp: 885; awk: 353; perl: 267; exp: 62; sed: 9
file content (35 lines) | stat: -rw-r--r-- 453 bytes parent folder | download | duplicates (15)
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
/*
 * Proxy wrappers for if_nametoindex.
 *
 * Copyright (c) 2017-2018 The strace developers.
 * All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "tests.h"

#ifdef HAVE_IF_INDEXTONAME

# include <net/if.h>

unsigned int
ifindex_lo(void)
{
	static unsigned int index;

	if (!index)
		index = if_nametoindex("lo");

	return index;
}

#else /* !HAVE_IF_INDEXTONAME */

unsigned int
ifindex_lo(void)
{
	return 1;
}

#endif