nrf_setdnsaddr()

int nrf_setdnsaddr	(	int	family,
		const void *	in_addr,
		nrf_socklen_t	in_size
	)

#include <nrf_modem/include/nrf_socket.h>

Set a secondary DNS address.

The secondary DNS address is only used in case the primary DNS address is unreachable, or if no DNS address is provided by the operator. The secondary DNS address does not override the primary DNS address.

Note

It is not possible to unset a secondary DNS address set using this function.

Parameters

family	Address family.
in_addr	An IPv4 or IPv6 address encoded in a nrf_in_addr or nrf_in6_addr structure, respectively.
in_size	Size of the structure pointed to by in_addr.

Return values

0	On success
-1	On error, and set errno to indicate the reason.

The function may return -1 and set the following errno:

• [NRF_EPERM] The Modem library is not initialized.
• [NRF_EAFNOSUPPORT] The implementation does not support the specified address family.
• [NRF_EINVAL] Invalid parameters.
• [NRF_ENOBUFS] Not enough shared memory for this request.
• [NRF_ESHUTDOWN] Modem was shut down.