if_indextoname()
Map an interface index to its name
Synopsis:
#include <net/if.h> char * if_indextoname( unsigned int ifindex, char * ifname );
Arguments:
- ifindex
- The interface index.
- ifname
- A pointer to a buffer in which if_indextoname() copies the interface name. The buffer must be a minimum of IFNAMSIZ bytes long.
Library:
libsocket
Use the -l socket option to qcc to link against this library.
Description:
The if_indextoname() function maps the interface index specified by ifindex to its corresponding name. The name is copied into the buffer pointed to by ifname.
Returns:
A pointer to the name, or NULL if There isn't an interface corresponding to the specified index.
Classification:
Safety: | |
---|---|
Cancellation point | Yes |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |