1 /* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #if defined(LIBC_SCCS) && !defined(lint) 35 /*static char sccsid[] = "from: @(#)ttyslot.c 5.6 (Berkeley) 2/23/91";*/ 36 static char rcsid[] = "$Id: ttyslot.c,v 1.2 1993/07/30 08:23:50 mycroft Exp $"; 37 #endif /* LIBC_SCCS and not lint */ 38 39 #include <ttyent.h> 40 #include <stdio.h> 41 #include <string.h> 42 #include <unistd.h> 43 44 int 45 ttyslot() 46 { 47 register struct ttyent *ttyp; 48 register int slot; 49 register char *p; 50 int cnt; 51 char *name; 52 53 setttyent(); 54 for (cnt = 0; cnt < 3; ++cnt) 55 if (name = ttyname(cnt)) { 56 if (p = rindex(name, '/')) 57 ++p; 58 else 59 p = name; 60 for (slot = 1; ttyp = getttyent(); ++slot) 61 if (!strcmp(ttyp->ty_name, p)) { 62 endttyent(); 63 return(slot); 64 } 65 break; 66 } 67 endttyent(); 68 return(0); 69 } 70