712696a24c
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
320 lines
8.2 KiB
C
320 lines
8.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 Scott Bartram
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_spx_hack.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/capsicum.h>
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#include <sys/fcntl.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/syscallsubr.h>
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#include <sys/sysproto.h>
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#include <sys/ttycom.h>
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#include <i386/ibcs2/ibcs2_fcntl.h>
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#include <i386/ibcs2/ibcs2_signal.h>
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#include <i386/ibcs2/ibcs2_proto.h>
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#include <i386/ibcs2/ibcs2_util.h>
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static void cvt_iflock2flock(struct ibcs2_flock *, struct flock *);
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static void cvt_flock2iflock(struct flock *, struct ibcs2_flock *);
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static int cvt_o_flags(int);
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static int oflags2ioflags(int);
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static int ioflags2oflags(int);
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static int
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cvt_o_flags(flags)
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int flags;
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{
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int r = 0;
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/* convert mode into NetBSD mode */
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if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
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if (flags & IBCS2_O_RDWR) r |= O_RDWR;
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if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK;
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if (flags & IBCS2_O_APPEND) r |= O_APPEND;
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if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
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if (flags & IBCS2_O_CREAT) r |= O_CREAT;
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if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */;
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if (flags & IBCS2_O_EXCL) r |= O_EXCL;
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if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
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if (flags & IBCS2_O_PRIV) r |= O_EXLOCK;
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if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
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return r;
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}
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static void
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cvt_flock2iflock(flp, iflp)
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struct flock *flp;
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struct ibcs2_flock *iflp;
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{
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switch (flp->l_type) {
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case F_RDLCK:
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iflp->l_type = IBCS2_F_RDLCK;
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break;
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case F_WRLCK:
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iflp->l_type = IBCS2_F_WRLCK;
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break;
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case F_UNLCK:
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iflp->l_type = IBCS2_F_UNLCK;
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break;
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}
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iflp->l_whence = (short)flp->l_whence;
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iflp->l_start = (ibcs2_off_t)flp->l_start;
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iflp->l_len = (ibcs2_off_t)flp->l_len;
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iflp->l_sysid = flp->l_sysid;
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iflp->l_pid = (ibcs2_pid_t)flp->l_pid;
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}
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#ifdef DEBUG_IBCS2
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static void
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print_flock(struct flock *flp)
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{
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printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n",
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(int)flp->l_start, (int)flp->l_len, (int)flp->l_pid,
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flp->l_type, flp->l_whence);
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}
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#endif
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static void
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cvt_iflock2flock(iflp, flp)
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struct ibcs2_flock *iflp;
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struct flock *flp;
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{
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flp->l_start = (off_t)iflp->l_start;
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flp->l_len = (off_t)iflp->l_len;
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flp->l_pid = (pid_t)iflp->l_pid;
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switch (iflp->l_type) {
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case IBCS2_F_RDLCK:
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flp->l_type = F_RDLCK;
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break;
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case IBCS2_F_WRLCK:
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flp->l_type = F_WRLCK;
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break;
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case IBCS2_F_UNLCK:
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flp->l_type = F_UNLCK;
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break;
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}
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flp->l_whence = iflp->l_whence;
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flp->l_sysid = iflp->l_sysid;
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}
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/* convert iBCS2 mode into NetBSD mode */
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static int
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ioflags2oflags(flags)
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int flags;
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{
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int r = 0;
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if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
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if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
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if (flags & IBCS2_O_RDWR) r |= O_RDWR;
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if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK;
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if (flags & IBCS2_O_APPEND) r |= O_APPEND;
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if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
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if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK;
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if (flags & IBCS2_O_CREAT) r |= O_CREAT;
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if (flags & IBCS2_O_TRUNC) r |= O_TRUNC;
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if (flags & IBCS2_O_EXCL) r |= O_EXCL;
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if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
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return r;
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}
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/* convert NetBSD mode into iBCS2 mode */
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static int
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oflags2ioflags(flags)
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int flags;
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{
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int r = 0;
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if (flags & O_RDONLY) r |= IBCS2_O_RDONLY;
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if (flags & O_WRONLY) r |= IBCS2_O_WRONLY;
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if (flags & O_RDWR) r |= IBCS2_O_RDWR;
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if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK;
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if (flags & O_APPEND) r |= IBCS2_O_APPEND;
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if (flags & O_FSYNC) r |= IBCS2_O_SYNC;
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if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK;
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if (flags & O_CREAT) r |= IBCS2_O_CREAT;
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if (flags & O_TRUNC) r |= IBCS2_O_TRUNC;
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if (flags & O_EXCL) r |= IBCS2_O_EXCL;
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if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY;
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return r;
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}
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int
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ibcs2_open(td, uap)
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struct thread *td;
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struct ibcs2_open_args *uap;
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{
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struct proc *p;
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char *path;
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int flags, noctty, ret;
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p = td->td_proc;
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noctty = uap->flags & IBCS2_O_NOCTTY;
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flags = cvt_o_flags(uap->flags);
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if (uap->flags & O_CREAT)
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CHECKALTCREAT(td, uap->path, &path);
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else
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CHECKALTEXIST(td, uap->path, &path);
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ret = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE, flags, uap->mode);
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#ifdef SPX_HACK
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if (ret == ENXIO) {
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if (!strcmp(path, "/compat/ibcs2/dev/spx"))
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ret = spx_open(td);
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free(path, M_TEMP);
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} else
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#endif /* SPX_HACK */
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free(path, M_TEMP);
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PROC_LOCK(p);
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if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
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cap_rights_t rights;
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struct file *fp;
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int error;
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error = fget(td, td->td_retval[0],
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cap_rights_init(&rights, CAP_IOCTL), &fp);
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PROC_UNLOCK(p);
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if (error)
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return (EBADF);
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/* ignore any error, just give it a try */
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if (fp->f_type == DTYPE_VNODE)
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fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, td->td_ucred,
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td);
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fdrop(fp, td);
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} else
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PROC_UNLOCK(p);
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return ret;
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}
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int
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ibcs2_creat(td, uap)
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struct thread *td;
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struct ibcs2_creat_args *uap;
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{
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char *path;
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int error;
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CHECKALTCREAT(td, uap->path, &path);
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error = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE,
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O_WRONLY | O_CREAT | O_TRUNC, uap->mode);
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free(path, M_TEMP);
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return (error);
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}
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int
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ibcs2_access(td, uap)
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struct thread *td;
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struct ibcs2_access_args *uap;
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{
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char *path;
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int error;
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CHECKALTEXIST(td, uap->path, &path);
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error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0, uap->amode);
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free(path, M_TEMP);
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return (error);
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}
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int
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ibcs2_fcntl(td, uap)
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struct thread *td;
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struct ibcs2_fcntl_args *uap;
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{
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intptr_t arg;
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int error;
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struct flock fl;
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struct ibcs2_flock ifl;
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arg = (intptr_t)uap->arg;
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switch(uap->cmd) {
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case IBCS2_F_DUPFD:
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return (kern_fcntl(td, uap->fd, F_DUPFD, arg));
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case IBCS2_F_GETFD:
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return (kern_fcntl(td, uap->fd, F_GETFD, arg));
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case IBCS2_F_SETFD:
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return (kern_fcntl(td, uap->fd, F_SETFD, arg));
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case IBCS2_F_GETFL:
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error = kern_fcntl(td, uap->fd, F_GETFL, arg);
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if (error)
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return error;
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td->td_retval[0] = oflags2ioflags(td->td_retval[0]);
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return error;
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case IBCS2_F_SETFL:
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return (kern_fcntl(td, uap->fd, F_SETFL,
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ioflags2oflags(arg)));
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case IBCS2_F_GETLK:
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{
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error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
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ibcs2_flock_len);
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if (error)
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return error;
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cvt_iflock2flock(&ifl, &fl);
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error = kern_fcntl(td, uap->fd, F_GETLK, (intptr_t)&fl);
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if (error)
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return error;
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cvt_flock2iflock(&fl, &ifl);
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return copyout((caddr_t)&ifl, (caddr_t)uap->arg,
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ibcs2_flock_len);
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}
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case IBCS2_F_SETLK:
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{
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error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
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ibcs2_flock_len);
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if (error)
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return error;
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cvt_iflock2flock(&ifl, &fl);
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return (kern_fcntl(td, uap->fd, F_SETLK, (intptr_t)&fl));
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}
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case IBCS2_F_SETLKW:
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{
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error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
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ibcs2_flock_len);
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if (error)
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return error;
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cvt_iflock2flock(&ifl, &fl);
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return (kern_fcntl(td, uap->fd, F_SETLKW, (intptr_t)&fl));
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}
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}
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return ENOSYS;
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}
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