2 * 43BSD_FILE.C - 4.3BSD compatibility file syscalls
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * $DragonFly: src/sys/emulation/43bsd/43bsd_file.c,v 1.11 2006/09/05 00:55:44 dillon Exp $
37 * from: DragonFly kern/vfs_syscalls.c,v 1.20
39 * These syscalls used to live in kern/vfs_syscalls.c. They are modified
40 * to use the new split syscalls.
43 #include "opt_compat.h"
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/sysproto.h>
49 #include <sys/dirent.h>
50 #include <sys/fcntl.h>
52 #include <sys/filedesc.h>
53 #include <sys/kernel.h>
54 #include <sys/kern_syscall.h>
55 #include <sys/malloc.h>
56 #include <sys/mount.h>
58 #include <sys/namei.h>
59 #include <sys/nlookup.h>
60 #include <sys/vnode.h>
62 #include <sys/mplock2.h>
64 #include <vfs/union/union.h>
70 sys_ocreat(struct ocreat_args *uap)
72 struct nlookupdata nd;
76 error = nlookup_init(&nd, uap->path, UIO_USERSPACE, NLC_FOLLOW);
78 error = kern_open(&nd, O_WRONLY | O_CREAT | O_TRUNC,
79 uap->mode, &uap->sysmsg_iresult);
89 sys_oftruncate(struct oftruncate_args *uap)
94 error = kern_ftruncate(uap->fd, uap->length);
104 sys_olseek(struct olseek_args *uap)
108 error = kern_lseek(uap->fd, uap->offset, uap->whence,
109 &uap->sysmsg_offset);
118 sys_otruncate(struct otruncate_args *uap)
120 struct nlookupdata nd;
124 error = nlookup_init(&nd, uap->path, UIO_USERSPACE, NLC_FOLLOW);
126 error = kern_truncate(&nd, uap->length);
132 #define PADDED_SIZE(x) \
133 ((sizeof(struct odirent) + (x) + 1 + 3) & ~3)
134 #define MAX_NAMELEN 255
148 sys_ogetdirentries(struct ogetdirentries_args *uap)
150 int error, bytes_transfered;
154 struct odirent *destdp;
157 if (uap->count > 16384)
162 buf = kmalloc(len, M_TEMP, M_WAITOK);
165 error = kern_getdirentries(uap->fd, buf, len,
166 &base, &bytes_transfered, UIO_SYSSPACE);
174 ndp = (struct dirent *)buf;
176 destdp = kmalloc(PADDED_SIZE(MAX_NAMELEN), M_TEMP, M_WAITOK);
178 for (; (char *)ndp < buf + bytes_transfered; ndp = _DIRENT_NEXT(ndp)) {
179 if ((char *)_DIRENT_NEXT(ndp) > buf + bytes_transfered)
181 if (ndp->d_namlen > MAX_NAMELEN)
183 destdp->od_fileno = ndp->d_ino;
184 #if BYTE_ORDER == LITTLE_ENDIAN
185 destdp->od_type = ndp->d_namlen;
186 destdp->od_namlen = ndp->d_type;
188 destdp->od_type = ndp->d_type;
189 destdp->od_namlen = ndp->d_namlen;
191 destdp->od_reclen = PADDED_SIZE(destdp->od_namlen);
192 if (destdp->od_reclen > len)
193 break; /* XXX can not happen */
194 bcopy(ndp->d_name, destdp->od_name, destdp->od_namlen);
195 bzero(destdp->od_name + destdp->od_namlen,
196 PADDED_SIZE(destdp->od_namlen) - sizeof(*destdp) -
198 error = copyout(destdp, outbuf,
199 PADDED_SIZE(destdp->od_namlen));
202 outbuf += PADDED_SIZE(destdp->od_namlen);
203 len -= PADDED_SIZE(destdp->od_namlen);
206 kfree(destdp, M_TEMP);
208 uap->sysmsg_iresult = (int)(outbuf - uap->buf);