fhstore
size_t len = fhstore(version, src);
alen = fhstore(d->version, argsv2->fh);
alen = fhstore(d->version, argsv3->fh);
alen = fhstore(d->version, replv3->fh);
sdata.fh, fhstore(d->version, sdata.fh),
memmove(argsv3->fh + fhstore(d->version, argsv3->fh),
alen += fhstore(d->version, argsv3->fh);