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-rw-r--r--lib/libc/gen/ttyname.c224
1 files changed, 0 insertions, 224 deletions
diff --git a/lib/libc/gen/ttyname.c b/lib/libc/gen/ttyname.c
deleted file mode 100644
index b2f3f79..0000000
--- a/lib/libc/gen/ttyname.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)ttyname.c 8.2 (Berkeley) 1/27/94";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <stdlib.h>
-#include <termios.h>
-#include <unistd.h>
-#include <db.h>
-#include <string.h>
-#include <paths.h>
-
-#ifdef _THREAD_SAFE
-#include <pthread.h>
-#include "pthread_private.h"
-static struct pthread_mutex _ttyname_lockd = PTHREAD_MUTEX_INITIALIZER;
-static pthread_mutex_t ttyname_lock = &_ttyname_lockd;
-static pthread_key_t ttyname_key;
-static int ttyname_init = 0;
-
-char *
-ttyname(int fd)
-{
- char *ret;
-
- if (_thread_fd_lock(fd, FD_READ, NULL, __FILE__, __LINE__) == 0) {
- ret = __ttyname_basic(fd);
- _thread_fd_unlock(fd, FD_READ);
- } else {
- ret = NULL;
- }
-
- return (ret);
-}
-
-char *
-__ttyname_r_basic(int fd, char *buf, size_t len)
-{
- register struct dirent *dirp;
- register DIR *dp;
- struct stat dsb;
- struct stat sb;
- char *rval;
- int minlen;
-
- rval = NULL;
-
- /* Must be a terminal. */
- if (!isatty(fd))
- return (rval);
- /* Must be a character device. */
- if (_thread_sys_fstat(fd, &sb) || !S_ISCHR(sb.st_mode))
- return (rval);
- /* Must have enough room */
- if (len <= sizeof(_PATH_DEV))
- return (rval);
-
- if ((dp = opendir(_PATH_DEV)) != NULL) {
- memcpy(buf, _PATH_DEV, sizeof(_PATH_DEV));
- for (rval = NULL; (dirp = readdir(dp)) != NULL;) {
- if (dirp->d_fileno != sb.st_ino)
- continue;
- minlen = (len - (sizeof(_PATH_DEV) - 1)) < (dirp->d_namlen + 1) ?
- (len - (sizeof(_PATH_DEV) - 1)) : (dirp->d_namlen + 1);
- memcpy(buf + sizeof(_PATH_DEV) - 1, dirp->d_name, minlen);
- if (stat(buf, &dsb) || sb.st_dev != dsb.st_dev ||
- sb.st_ino != dsb.st_ino)
- continue;
- rval = buf;
- break;
- }
- (void) closedir(dp);
- }
- return (rval);
-}
-
-char *
-__ttyname_basic(int fd)
-{
- char *buf;
-
- pthread_mutex_lock(&ttyname_lock);
- if (ttyname_init == 0) {
- if (pthread_key_create(&ttyname_key, free)) {
- pthread_mutex_unlock(&ttyname_lock);
- return (NULL);
- }
- ttyname_init = 1;
- }
- pthread_mutex_unlock(&ttyname_lock);
-
- /* Must have thread specific data field to put data */
- if ((buf = pthread_getspecific(ttyname_key)) != 0) {
- return (NULL);
- } else if (buf == NULL) {
- if ((buf = malloc(sizeof(_PATH_DEV) + MAXNAMLEN)) != NULL) {
- if (pthread_setspecific(ttyname_key, buf) != 0) {
- free(buf);
- return (NULL);
- }
- } else {
- return (NULL);
- }
- }
- return (__ttyname_r_basic(fd, buf, sizeof(_PATH_DEV) + MAXNAMLEN));
-}
-
-char *
-ttyname_r(int fd, char *buf, size_t len)
-{
- char *ret;
-
- if (_thread_fd_lock(fd, FD_READ, NULL, __FILE__, __LINE__) == 0) {
- ret = __ttyname_r_basic(fd, buf, len);
- _thread_fd_unlock(fd, FD_READ);
- } else {
- ret = NULL;
- }
- return (ret);
-}
-#else
-static char buf[sizeof(_PATH_DEV) + MAXNAMLEN] = _PATH_DEV;
-static char *oldttyname __P((int, struct stat *));
-
-char *
-ttyname(fd)
- int fd;
-{
- struct stat sb;
- struct termios ttyb;
- DB *db;
- DBT data, key;
- struct {
- mode_t type;
- dev_t dev;
- } bkey;
-
- /* Must be a terminal. */
- if (tcgetattr(fd, &ttyb) < 0)
- return (NULL);
- /* Must be a character device. */
- if (fstat(fd, &sb) || !S_ISCHR(sb.st_mode))
- return (NULL);
-
- if ( (db = dbopen(_PATH_DEVDB, O_RDONLY, 0, DB_HASH, NULL)) ) {
- 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 ((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);
-}
-#endif
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