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| ARES_SET_LOCAL_DEV(3) | FreeBSD Library Functions Manual | ARES_SET_LOCAL_DEV(3) |
NAME
ares_set_local_dev - Bind to a specific network device when creating sockets.SYNOPSIS
#include <ares.h>
void ares_set_local_dev(ares_channel 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_ip4(3) ares_set_local_ip6(3)NOTES
This function was added in c-ares 1.7.4AUTHOR
Ben Greear| 30 June 2010 |
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