SUPDUP.c:#include <sgtty.h>
TELNET.c:	struct sgttyb stbuf;
TTYLINK.c:#include <sgtty.h>
cftp.c:	struct sgttyb old, new;
chconnect.c:#include <sgtty.h>
chfinger.c:#include	<sgtty.h>
chread.c:#include <sgtty.h>
chserver.c:#include <sgtty.h>
chsupdup.c:#include <sgtty.h>
chtelnet.c:#include <sgtty.h>
chttyserv.c:    struct sgttyb b;
chwrite.c:#include <sgtty.h>
conn.c:#include <sgtty.h>
hostat.c:#include <sgtty.h>
oconn.c:#include <sgtty.h>
