ttyslot.c revision 90041
1254721Semaste/* 2254721Semaste * Copyright (c) 1988, 1993 3254721Semaste * The Regents of the University of California. All rights reserved. 4254721Semaste * 5254721Semaste * Redistribution and use in source and binary forms, with or without 6254721Semaste * modification, are permitted provided that the following conditions 7254721Semaste * are met: 8254721Semaste * 1. Redistributions of source code must retain the above copyright 9254721Semaste * notice, this list of conditions and the following disclaimer. 10254721Semaste * 2. Redistributions in binary form must reproduce the above copyright 11254721Semaste * notice, this list of conditions and the following disclaimer in the 12254721Semaste * documentation and/or other materials provided with the distribution. 13254721Semaste * 3. All advertising materials mentioning features or use of this software 14254721Semaste * must display the following acknowledgement: 15254721Semaste * This product includes software developed by the University of 16254721Semaste * California, Berkeley and its contributors. 17254721Semaste * 4. Neither the name of the University nor the names of its contributors 18254721Semaste * may be used to endorse or promote products derived from this software 19254721Semaste * without specific prior written permission. 20254721Semaste * 21254721Semaste * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22254721Semaste * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23254721Semaste * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24254721Semaste * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25254721Semaste * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26254721Semaste * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27254721Semaste * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28254721Semaste * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29254721Semaste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30254721Semaste * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31254721Semaste * SUCH DAMAGE. 32254721Semaste */ 33254721Semaste 34254721Semaste#if defined(LIBC_SCCS) && !defined(lint) 35254721Semastestatic char sccsid[] = "@(#)ttyslot.c 8.1 (Berkeley) 6/4/93"; 36254721Semaste#endif /* LIBC_SCCS and not lint */ 37254721Semaste#include <sys/cdefs.h> 38254721Semaste__FBSDID("$FreeBSD: head/lib/libc/gen/ttyslot.c 90041 2002-02-01 01:08:48Z obrien $"); 39254721Semaste 40254721Semaste#include <ttyent.h> 41254721Semaste#include <stdio.h> 42254721Semaste#include <string.h> 43254721Semaste#include <unistd.h> 44254721Semaste 45254721Semasteint 46254721Semastettyslot() 47254721Semaste{ 48254721Semaste struct ttyent *ttyp; 49254721Semaste int slot; 50254721Semaste char *p; 51254721Semaste int cnt; 52254721Semaste char *name; 53254721Semaste 54254721Semaste setttyent(); 55254721Semaste for (cnt = 0; cnt < 3; ++cnt) 56254721Semaste if ( (name = ttyname(cnt)) ) { 57254721Semaste if ( (p = rindex(name, '/')) ) 58254721Semaste ++p; 59254721Semaste else 60254721Semaste p = name; 61254721Semaste for (slot = 1; (ttyp = getttyent()); ++slot) 62254721Semaste if (!strcmp(ttyp->ty_name, p)) { 63254721Semaste endttyent(); 64254721Semaste return(slot); 65254721Semaste } 66254721Semaste break; 67254721Semaste } 68254721Semaste endttyent(); 69254721Semaste return(0); 70254721Semaste} 71254721Semaste