sbflush(sb) register struct sockbuf *sb;
sbflush(struct sockbuf *sb)
sbflush(sb)	register struct sockbuf *sb;{	if (sb->sb_flags & SB_LOCK)		panic("sbflush");	while (sb->sb_mbcnt)		sbdrop(sb, (int)sb->sb_cc);	if (sb->sb_cc || sb->sb_mb)		panic("sbflush 2");}