+++ /dev/null
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1988, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/termios.h>
-
-#include <fcntl.h>
-#include <dirent.h>
-#include <db.h>
-#include <string.h>
-#include <paths.h>
-#include <stdlib.h>
-
-static char *buf = NULL;
-static char *oldttyname __P((int, struct stat *));
-
-char *
-ttyname(fd)
- int fd;
-{
- struct stat sb;
- struct termios term;
- DB *db;
- DBT data, key;
- struct {
- mode_t type;
- dev_t dev;
- } bkey;
-
- if( buf == NULL ) {
- buf = malloc(sizeof(_PATH_DEV) + MAXNAMLEN);
- if( buf == NULL )
- return NULL;
- strcpy(buf, _PATH_DEV);
- }
-
- /* Must be a terminal. */
- if (ioctl(fd, TIOCGETA, &term) < 0)
- return (NULL);
- /* Must be a character device. */
- if (fstat(fd, &sb) || !S_ISCHR(sb.st_mode))
- return (NULL);
-
- db = dbopen(_PATH_DEVDB, O_RDONLY, 0, DB_HASH, NULL);
- if (db) {
- memset(&bkey, 0, sizeof(bkey));
- bkey.type = S_IFCHR;
- bkey.dev = sb.st_rdev;
- key.data = &bkey;
- key.size = sizeof(bkey);
- if (!(db->get)(db, &key, &data, 0)) {
- bcopy(data.data,
- buf + sizeof(_PATH_DEV) - 1, data.size);
- (void)(db->close)(db);
- return (buf);
- }
- (void)(db->close)(db);
- }
- return (oldttyname(fd, &sb));
-}
-
-static char *
-oldttyname(fd, sb)
- int fd;
- struct stat *sb;
-{
- register struct dirent *dirp;
- register DIR *dp;
- struct stat dsb;
-
- if( buf == NULL ) {
- buf = malloc(sizeof(_PATH_DEV) + MAXNAMLEN);
- if( buf == NULL )
- return NULL;
- strcpy(buf, _PATH_DEV);
- }
- if ((dp = opendir(_PATH_DEV)) == NULL)
- return (NULL);
-
- while ( (dirp = readdir(dp)) ) {
- if (dirp->d_fileno != sb->st_ino)
- continue;
- bcopy(dirp->d_name, buf + sizeof(_PATH_DEV) - 1,
- dirp->d_namlen + 1);
- if (stat(buf, &dsb) || sb->st_dev != dsb.st_dev ||
- sb->st_ino != dsb.st_ino)
- continue;
- (void)closedir(dp);
- return (buf);
- }
- (void)closedir(dp);
- return (NULL);
-}