sin_zero
memset(&in4_addr->sin_zero, 0, sizeof(in4_addr->sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin.sin_zero, 0, sizeof(sin.sin_zero));
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin.sin_zero, 0, sizeof(sin.sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
memset(sa->sin_zero, 0, sizeof(sa->sin_zero));
memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
memset(saddr->v4.sin_zero, 0, sizeof(saddr->v4.sin_zero));
memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));