Libwebsockets initializes the 'sin_zero' member of sockaddr_in objects to zeros.
Apparently, judging from mailing list entries, there are platforms on which incliinclunot
doing this causes undefined behaviour.
On NuttX compiling respective code is broken, as the corresponding member
variable is called '__pad'. Neither in the 'nuttx' nor in the 'apps'
respository did I find any reference to this identifier. Thus, I believe its a
safe bet to just rename it.
UNIX Network Programming states in this regard:
"The POSIX specification requires only three members in the structure: sin_family,
sin_addr, and sin_port. It is acceptable for a POSIX-compliant implementation to
define additional structure members, and this is normal for an Internet socket
address structure. Almost all implementations add the sin_zero member so that all
socket address structures are at least 16 bytes in size."
Adds definitions for IPPROTO_IPV6 socket options to netinet/in.h Adds missing fields to sockaddr_in6. Adds struct ipv6-mreq.
These changes all follow the opengroup standard for netinet/in.h
Approved-by: GregoryN <gnutt@nuttx.org>
Squashed commit of the following:
net/icmpv6: IPPROT_ICMP6 socket logic now builds without error.
net/icmpv6: Add support for read-ahead and poll(). Initial commit is just cloned from ICMP with the appropriate name changes.
configs/: All defconfig filess that include CONFIG_NET_ICMPv6_SOCKET=y need to select CONFIG_SYSTEM_PING6=y and deselect CONFIG_DISABLE_POLL.
Update NSH documention to show that ping6 is now a built in command.
net/icmpv6: Add icmpv6_sendto.c and icmpv6_recvfrom.c. Initial versions are just clones from icmp/ with appropriate name changes.
net/icmpv6: Clone some ICMP socket logic as the beginning of support for ICMPv6 socket support.
Rename CONFIG_NET_ICMPv6_PING to CONFIG_NET_ICMPv6_SOCKET. Move prototype for icmpv6_ping from include/nuttx/net/icmpv6 to net/icmpv6/icmpv6.h
