sdl_slen
if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && sdl->sdl_slen == 0) {
sdl->sdl_type, sdl->sdl_nlen, sdl->sdl_alen, sdl->sdl_slen,
if (sdl->sdl_slen == 0 && sdl->sdl_nlen == 0
salen = sdl->sdl_slen + sdl->sdl_nlen + sdl->sdl_alen;
sdl->sdl_slen == 0) {
if (sdl->sdl_slen == 0 && sdl->sdl_nlen == 0 && sdl->sdl_alen == 0)
sdl->sdl_slen = 0;
dataofs, dataofs + MIN(sdl1->sdl_slen, sdl2->sdl_slen));
if (sdl1->sdl_slen != sdl2->sdl_slen)
return sdl1->sdl_slen - sdl2->sdl_slen;
&& sdlp->sdl_slen == 0)
sdl->sdl_slen = 0;