Status of network interface

Question

I am trying to find which network interfaces (of the local machine which has multiple IPs) are up and which are down. Is there a C/C++ function for this? Thanks!

score 2 · Answer 1 · edited Jan 06 '15 at 08:56

2

See the getifaddrs man page. You can find code and man page here.

edited Jan 06 '15 at 08:56

Manjunath N

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answered Jan 06 '15 at 08:14

saurabh agarwal

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It gives all the interface details. Not just the ones which are up. – aniztar Jan 08 '15 at 11:46
1

You can check Tx and Rx packets. – saurabh agarwal Jan 08 '15 at 19:18

score 0 · Answer 2 · answered Jan 06 '15 at 08:14

0

Use /proc/net/ see proc(5) for more. And also /sys/class/net/

answered Jan 06 '15 at 08:14

Basile Starynkevitch

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score 0 · Answer 3 · answered Jan 06 '15 at 08:24

you can use GETIFADDRS(3) function creates a linked list of structures describing the network interfaces of the local system, and stores the address of the first item of the list in *ifap.

after getting all the IPs you can use ping to check whether IP is up or down

if ( system("ping x.x.x.x ") == 0)
{
    doSomthing();
}

Status of network interface

3 Answers3