nsaddr
struct sockaddr *osaddr, *odaddr, *nsaddr, *ndaddr;
nsaddr = (struct sockaddr *)(xisr_new + 1);
ndaddr = (struct sockaddr *)(((uint8_t *)nsaddr) + sysdep_sa_len(nsaddr));
nsaddr->sa_family != ndaddr->sa_family)
if (nsaddr->sa_family != osaddr->sa_family)
osaddr->sa_family, nsaddr->sa_family);
ma.local = nsaddr;
memcpy(&saidx->src, nsaddr, sysdep_sa_len(nsaddr));
statp->_u._ext.ext->nsaddrs[0].sin = statp->nsaddr;