* if_ioctl.c: (interface_list_ioctl) Use if_get_by_name_len.
* if_proc.c: (ifaddr_proc_ipv6) Increase size of ifname buffer to
avoid overflow.
* kernel_socket.c: (ifan_read) Use if_get_by_name_len.
* if.h: Fix comments to reflect that if_lookup_by_name and
if_get_by_name now require the argument strings to be NUL-terminated.
* if.c: (if_lookup_by_name) Compare using strcmp.
(if_get_by_name) Pass strlen(ifname) as 2nd arg to if_create.
* irdp_{interface,main}.c: lists typedef removal cleanup.
update some list loops to LIST_LOOP. some miscellaneous style
and indent fixups.
(no_ip_irdp_address_preference_cmd) Fix delete of referenced node
in loop.
* irdp_packet.c: (irdp_recvmsg) Fix buggy assignment of integer
to pointer.
* if_ioctl{,_solaris}.c: lists typedef removal cleanup.
update some list loops to LIST_LOOP.
