ares_set_local_dev(3) ares_set_local_dev(3)
NAME
ares_set_local_dev - Bind to a specific network device when creating
sockets.
SYNOPSIS
#include <ares.h>
ares_set_local_dev(3) channel, const char* local_dev_name)
DESCRIPTION
The ares_set_local_dev function causes all future sockets to be bound
to this device with SO_BINDTODEVICE. This forces communications to go
over a certain interface, which can be useful on multi-homed machines.
This option is only supported on Linux, and root privileges are
required for the option to work. If SO_BINDTODEVICE is not supported
or the setsocktop call fails (probably because of permissions), the
error is silently ignored.
SEE ALSO
ares_set_local_ipv4(3) ares_set_local_ipv6(3)
NOTES
This function was added in c-ares 1.7.4
AUTHOR
Ben Greear
30 June 2010 ares_set_local_dev(3)
c-ares 4.4.11 - Generated Fri Jan 27 15:25:31 CST 2017