You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
20 lines
529 B
Groff
20 lines
529 B
Groff
.TH socket_getifidx 3
|
|
.SH NAME
|
|
socket_getifidx \- get interface number
|
|
.SH SYNTAX
|
|
.B #include <socket.h>
|
|
|
|
int \fBsocket_getifidx\fP(const char* \fIifname\fR);
|
|
.SH DESCRIPTION
|
|
socket_getifidx returns the interface number for a symbolic network
|
|
interface name (like "eth0" on Linux, for example).
|
|
|
|
The interface number can be used as scope_id for IPv6 communications on
|
|
link-local addresses.
|
|
|
|
If something goes wrong, socket_getifidx returns -1, setting errno
|
|
appropriately.
|
|
|
|
.SH "SEE ALSO"
|
|
socket_getifname(3), socket_connect6(3)
|