diff options
Diffstat (limited to 'sys/boot/libsa/open.c')
| -rw-r--r-- | sys/boot/libsa/open.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/sys/boot/libsa/open.c b/sys/boot/libsa/open.c deleted file mode 100644 index 2ae17314bc54..000000000000 --- a/sys/boot/libsa/open.c +++ /dev/null @@ -1,159 +0,0 @@ -/* $NetBSD: open.c,v 1.16 1997/01/28 09:41:03 pk Exp $ */ - -/*- - * Copyright (c) 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * The Mach Operating System project at Carnegie-Mellon University. - * - * 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. 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. - * - * @(#)open.c 8.1 (Berkeley) 6/11/93 - * - * - * Copyright (c) 1989, 1990, 1991 Carnegie Mellon University - * All Rights Reserved. - * - * Author: Alessandro Forin - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie the - * rights to redistribute these changes. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "stand.h" - -struct fs_ops *exclusive_file_system; - -struct open_file files[SOPEN_MAX]; - -static int -o_gethandle(void) -{ - int fd; - - for (fd = 0; fd < SOPEN_MAX; fd++) - if (files[fd].f_flags == 0) - return(fd); - return(-1); -} - -static void -o_rainit(struct open_file *f) -{ - f->f_rabuf = malloc(SOPEN_RASIZE); - f->f_ralen = 0; - f->f_raoffset = 0; -} - -int -open(const char *fname, int mode) -{ - struct fs_ops *fs; - struct open_file *f; - int fd, i, error, besterror; - const char *file; - - if ((fd = o_gethandle()) == -1) { - errno = EMFILE; - return(-1); - } - - f = &files[fd]; - f->f_flags = mode + 1; - f->f_dev = (struct devsw *)0; - f->f_ops = (struct fs_ops *)0; - f->f_offset = 0; - f->f_devdata = NULL; - file = (char *)0; - - if (exclusive_file_system != NULL) { - fs = exclusive_file_system; - error = (fs->fo_open)(fname, f); - if (error == 0) - goto ok; - goto err; - } - - error = devopen(f, fname, &file); - if (error || - (((f->f_flags & F_NODEV) == 0) && f->f_dev == (struct devsw *)0)) - goto err; - - /* see if we opened a raw device; otherwise, 'file' is the file name. */ - if (file == (char *)0 || *file == '\0') { - f->f_flags |= F_RAW; - f->f_rabuf = NULL; - return (fd); - } - - /* pass file name to the different filesystem open routines */ - besterror = ENOENT; - for (i = 0; file_system[i] != NULL; i++) { - fs = file_system[i]; - error = (fs->fo_open)(file, f); - if (error == 0) - goto ok; - if (error != EINVAL) - besterror = error; - } - error = besterror; - - fail: - if ((f->f_flags & F_NODEV) == 0 && f->f_dev != NULL) - f->f_dev->dv_close(f); - if (error) - devclose(f); - - err: - f->f_flags = 0; - errno = error; - return (-1); - - ok: - f->f_ops = fs; - o_rainit(f); - return (fd); -} |