SVC_VERSQUIET
SVC_EXT(xprt)->xp_flags |= SVC_VERSQUIET;
SVC_EXT(xprt)->xp_flags &= ~SVC_VERSQUIET;
return (SVC_EXT(xprt)->xp_flags & SVC_VERSQUIET);
#define version_keepquiet(xp) (SVC_EXT(xp)->xp_flags & SVC_VERSQUIET)
#define version_keepquiet(xp) (SVC_EXT(xp)->xp_flags & SVC_VERSQUIET)