1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1987 by Sun Microsystems, Inc. 24 */ 25 26 #ident "%Z%%M% %I% %E% SMI" 27 /* SunOS-4.1 1.2 */ 28 29 /* 30 * Pseudo-terminal driver. 31 * 32 * Configuration dependent variables 33 */ 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/termios.h> 38 #include <sys/stream.h> 39 #include <sys/stropts.h> 40 #include <sys/kmem.h> 41 #include <sys/tty.h> 42 #include <sys/ptyvar.h> 43 44 #ifndef NOLDPTY 45 #define NOLDPTY 48 /* crude XXX */ 46 #endif 47 48 int npty = NOLDPTY; 49 50 struct pty *pty_softc; 51 52 struct pollhead ptcph; /* poll head for ptcpoll() use */ 53 54 /* 55 * Allocate space for data structures at runtime. 56 */ 57 void pty_initspace(void)58pty_initspace(void) 59 { 60 pty_softc = (struct pty *) 61 kmem_zalloc(npty * sizeof (struct pty), KM_SLEEP); 62 } 63