Re: [PATCH 4/5] lwip: Implement SIOCDIFADDR

[Samuel Thibault]

Joan Lledó, le lun. 06 avril 2026 14:00:02 +0200, a ecrit:
> From: Joan Lledó <jlle...@member.fsf.org>
> 
> Required by dhcpcd
> ---
>  pfinet/iioctl-ops.c | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/pfinet/iioctl-ops.c b/pfinet/iioctl-ops.c
> index 09f30d56..dea9a443 100644
> --- a/pfinet/iioctl-ops.c
> +++ b/pfinet/iioctl-ops.c
> @@ -503,7 +503,23 @@ S_iioctl_siocdifaddr (struct sock_user *user,
>                     const ifname_t ifnam,
>                     sockaddr_t addr)
>  {
> -  return EOPNOTSUPP;
> +  kern_return_t err;
> +  struct sockaddr_in sin;
> +  sin.sin_family = AF_INET;
> +
> +  /*
> +   * To delete an address, we set it to the values we use to initialize
> +   * an iface when no address is provided: 0.0.0.0/8
> +   */
> +  sin.sin_addr.s_addr = INADDR_ANY;
> +  sin.sin_addr.s_addr = 0xFF;

You need to call htonl rather than assuming little-endian.

Also, you can use IN_CLASSA_NET instead of hardcoding it :)

Samuel