2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
2N/A */
2N/A
2N/A/*
2N/A * fdopendir, dirfd -- C library extension routines
2N/A *
2N/A * We use lmalloc()/lfree() rather than malloc()/free() in
2N/A * order to allow opendir()/readdir()/closedir() to be called
2N/A * while holding internal libc locks.
2N/A */
2N/A
2N/A#pragma weak _fdopendir = fdopendir
2N/A
2N/A#include "lint.h"
2N/A#include <mtlib.h>
2N/A#include <dirent.h>
2N/A#include <sys/stat.h>
2N/A#include <fcntl.h>
2N/A#include <stdlib.h>
2N/A#include <unistd.h>
2N/A#include <errno.h>
2N/A#include "libc.h"
2N/A
2N/ADIR *
2N/Afdopendir(int fd)
2N/A{
2N/A private_DIR *pdirp = lmalloc(sizeof (*pdirp));
2N/A DIR *dirp = (DIR *)pdirp;
2N/A void *buf = lmalloc(DIRBUF);
2N/A int error = 0;
2N/A struct stat64 sbuf;
2N/A
2N/A if (pdirp == NULL || buf == NULL)
2N/A goto fail;
2N/A /*
2N/A * POSIX mandated behavior
2N/A * close on exec if using file descriptor
2N/A */
2N/A if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0)
2N/A goto fail;
2N/A if (fstat64(fd, &sbuf) < 0)
2N/A goto fail;
2N/A if ((sbuf.st_mode & S_IFMT) != S_IFDIR) {
2N/A error = ENOTDIR;
2N/A goto fail;
2N/A }
2N/A dirp->d_buf = buf;
2N/A dirp->d_fd = fd;
2N/A dirp->d_loc = 0;
2N/A dirp->d_size = 0;
2N/A (void) mutex_init(&pdirp->d_lock, USYNC_THREAD, NULL);
2N/A return (dirp);
2N/A
2N/Afail:
2N/A if (pdirp != NULL)
2N/A lfree(pdirp, sizeof (*pdirp));
2N/A if (buf != NULL)
2N/A lfree(buf, DIRBUF);
2N/A if (error)
2N/A errno = error;
2N/A return (NULL);
2N/A}
2N/A
2N/Aint
2N/Adirfd(DIR *dirp)
2N/A{
2N/A return (dirp->d_fd);
2N/A}