1 /* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #if defined(LIBC_SCCS) && !defined(lint) 9 static char sccsid[] = "@(#)isatty.c 5.5 (Berkeley) 06/01/90"; 10 #endif /* LIBC_SCCS and not lint */ 11 12 #include <termios.h> 13 14 isatty(fd) 15 int fd; 16 { 17 struct termios t; 18 19 return(tcgetattr(fd, &t) != -1); 20 } 21