8438b90fd3
pain in the backside.
806 lines
19 KiB
C
806 lines
19 KiB
C
/*-
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* Copyright (c) 1994-1995 Søren Schmidt
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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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* in this position and unchanged.
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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 withough 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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* $Id: linux_file.c,v 1.16 1997/12/05 19:55:37 bde Exp $
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*/
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#include "opt_compat.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysproto.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/proc.h>
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#include <sys/vnode.h>
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#include <sys/malloc.h>
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#include <sys/dirent.h>
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#include <sys/conf.h>
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#include <sys/tty.h>
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#include <i386/linux/linux.h>
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#include <i386/linux/linux_proto.h>
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#include <i386/linux/linux_util.h>
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int
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linux_creat(struct proc *p, struct linux_creat_args *args)
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{
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struct open_args /* {
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char *path;
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int flags;
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int mode;
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} */ bsd_open_args;
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caddr_t sg;
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sg = stackgap_init();
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CHECKALTCREAT(p, &sg, args->path);
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#ifdef DEBUG
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printf("Linux-emul(%d): creat(%s, %d)\n",
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p->p_pid, args->path, args->mode);
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#endif
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bsd_open_args.path = args->path;
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bsd_open_args.mode = args->mode;
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bsd_open_args.flags = O_WRONLY | O_CREAT | O_TRUNC;
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return open(p, &bsd_open_args);
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}
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int
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linux_open(struct proc *p, struct linux_open_args *args)
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{
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struct open_args /* {
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char *path;
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int flags;
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int mode;
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} */ bsd_open_args;
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int error;
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caddr_t sg;
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sg = stackgap_init();
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if (args->flags & LINUX_O_CREAT)
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CHECKALTCREAT(p, &sg, args->path);
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else
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CHECKALTEXIST(p, &sg, args->path);
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#ifdef DEBUG
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printf("Linux-emul(%d): open(%s, 0x%x, 0x%x)\n",
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p->p_pid, args->path, args->flags, args->mode);
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#endif
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bsd_open_args.flags = 0;
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if (args->flags & LINUX_O_RDONLY)
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bsd_open_args.flags |= O_RDONLY;
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if (args->flags & LINUX_O_WRONLY)
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bsd_open_args.flags |= O_WRONLY;
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if (args->flags & LINUX_O_RDWR)
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bsd_open_args.flags |= O_RDWR;
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if (args->flags & LINUX_O_NDELAY)
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bsd_open_args.flags |= O_NONBLOCK;
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if (args->flags & LINUX_O_APPEND)
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bsd_open_args.flags |= O_APPEND;
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if (args->flags & LINUX_O_SYNC)
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bsd_open_args.flags |= O_FSYNC;
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if (args->flags & LINUX_O_NONBLOCK)
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bsd_open_args.flags |= O_NONBLOCK;
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if (args->flags & LINUX_FASYNC)
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bsd_open_args.flags |= O_ASYNC;
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if (args->flags & LINUX_O_CREAT)
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bsd_open_args.flags |= O_CREAT;
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if (args->flags & LINUX_O_TRUNC)
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bsd_open_args.flags |= O_TRUNC;
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if (args->flags & LINUX_O_EXCL)
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bsd_open_args.flags |= O_EXCL;
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if (args->flags & LINUX_O_NOCTTY)
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bsd_open_args.flags |= O_NOCTTY;
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bsd_open_args.path = args->path;
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bsd_open_args.mode = args->mode;
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error = open(p, &bsd_open_args);
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if (!error && !(bsd_open_args.flags & O_NOCTTY) &&
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SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
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struct filedesc *fdp = p->p_fd;
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struct file *fp = fdp->fd_ofiles[p->p_retval[0]];
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if (fp->f_type == DTYPE_VNODE)
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(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p);
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}
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#ifdef DEBUG
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printf("Linux-emul(%d): open returns error %d\n",
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p->p_pid, error);
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#endif
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return error;
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}
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struct linux_flock {
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short l_type;
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short l_whence;
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linux_off_t l_start;
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linux_off_t l_len;
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linux_pid_t l_pid;
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};
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static void
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linux_to_bsd_flock(struct linux_flock *linux_flock, struct flock *bsd_flock)
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{
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switch (linux_flock->l_type) {
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case LINUX_F_RDLCK:
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bsd_flock->l_type = F_RDLCK;
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break;
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case LINUX_F_WRLCK:
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bsd_flock->l_type = F_WRLCK;
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break;
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case LINUX_F_UNLCK:
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bsd_flock->l_type = F_UNLCK;
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break;
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}
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bsd_flock->l_whence = linux_flock->l_whence;
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bsd_flock->l_start = (off_t)linux_flock->l_start;
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bsd_flock->l_len = (off_t)linux_flock->l_len;
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bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
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}
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static void
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bsd_to_linux_flock(struct flock *bsd_flock, struct linux_flock *linux_flock)
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{
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switch (bsd_flock->l_type) {
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case F_RDLCK:
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linux_flock->l_type = LINUX_F_RDLCK;
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break;
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case F_WRLCK:
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linux_flock->l_type = LINUX_F_WRLCK;
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break;
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case F_UNLCK:
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linux_flock->l_type = LINUX_F_UNLCK;
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break;
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}
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linux_flock->l_whence = bsd_flock->l_whence;
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linux_flock->l_start = (linux_off_t)bsd_flock->l_start;
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linux_flock->l_len = (linux_off_t)bsd_flock->l_len;
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linux_flock->l_pid = (linux_pid_t)bsd_flock->l_pid;
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}
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int
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linux_fcntl(struct proc *p, struct linux_fcntl_args *args)
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{
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int error, result;
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struct fcntl_args /* {
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int fd;
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int cmd;
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int arg;
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} */ fcntl_args;
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struct linux_flock linux_flock;
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struct flock *bsd_flock;
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struct filedesc *fdp;
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struct file *fp;
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struct vnode *vp;
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struct vattr va;
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long pgid;
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struct pgrp *pgrp;
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struct tty *tp, *(*d_tty) __P((dev_t));
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caddr_t sg;
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sg = stackgap_init();
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bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(struct flock));
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d_tty = NULL;
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#ifdef DEBUG
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printf("Linux-emul(%d): fcntl(%d, %08x, *)\n",
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p->p_pid, args->fd, args->cmd);
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#endif
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fcntl_args.fd = args->fd;
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fcntl_args.arg = 0;
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switch (args->cmd) {
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case LINUX_F_DUPFD:
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fcntl_args.cmd = F_DUPFD;
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return fcntl(p, &fcntl_args);
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case LINUX_F_GETFD:
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fcntl_args.cmd = F_GETFD;
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return fcntl(p, &fcntl_args);
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case LINUX_F_SETFD:
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fcntl_args.cmd = F_SETFD;
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return fcntl(p, &fcntl_args);
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case LINUX_F_GETFL:
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fcntl_args.cmd = F_GETFL;
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error = fcntl(p, &fcntl_args);
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result = p->p_retval[0];
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p->p_retval[0] = 0;
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if (result & O_RDONLY) p->p_retval[0] |= LINUX_O_RDONLY;
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if (result & O_WRONLY) p->p_retval[0] |= LINUX_O_WRONLY;
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if (result & O_RDWR) p->p_retval[0] |= LINUX_O_RDWR;
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if (result & O_NDELAY) p->p_retval[0] |= LINUX_O_NONBLOCK;
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if (result & O_APPEND) p->p_retval[0] |= LINUX_O_APPEND;
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if (result & O_FSYNC) p->p_retval[0] |= LINUX_O_SYNC;
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return error;
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case LINUX_F_SETFL:
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if (args->arg & LINUX_O_NDELAY) fcntl_args.arg |= O_NONBLOCK;
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if (args->arg & LINUX_O_APPEND) fcntl_args.arg |= O_APPEND;
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if (args->arg & LINUX_O_SYNC) fcntl_args.arg |= O_FSYNC;
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fcntl_args.cmd = F_SETFL;
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return fcntl(p, &fcntl_args);
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case LINUX_F_GETLK:
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if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
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sizeof(struct linux_flock))))
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return error;
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linux_to_bsd_flock(&linux_flock, bsd_flock);
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fcntl_args.cmd = F_GETLK;
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fcntl_args.arg = (int)bsd_flock;
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if (error = fcntl(p, &fcntl_args))
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return error;
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bsd_to_linux_flock(bsd_flock, &linux_flock);
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return copyout((caddr_t)&linux_flock, (caddr_t)args->arg,
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sizeof(struct linux_flock));
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case LINUX_F_SETLK:
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if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
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sizeof(struct linux_flock))))
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return error;
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linux_to_bsd_flock(&linux_flock, bsd_flock);
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fcntl_args.cmd = F_SETLK;
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fcntl_args.arg = (int)bsd_flock;
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return fcntl(p, &fcntl_args);
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case LINUX_F_SETLKW:
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if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
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sizeof(struct linux_flock))))
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return error;
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linux_to_bsd_flock(&linux_flock, bsd_flock);
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fcntl_args.cmd = F_SETLKW;
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fcntl_args.arg = (int)bsd_flock;
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return fcntl(p, &fcntl_args);
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case LINUX_F_SETOWN:
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case LINUX_F_GETOWN:
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/*
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* We need to route around the normal fcntl() for these calls,
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* since it uses TIOC{G,S}PGRP, which is too restrictive for
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* Linux F_{G,S}ETOWN semantics. For sockets, this problem
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* does not exist.
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*/
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fdp = p->p_fd;
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if ((u_int)args->fd >= fdp->fd_nfiles ||
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(fp = fdp->fd_ofiles[args->fd]) == NULL)
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return EBADF;
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if (fp->f_type == DTYPE_SOCKET) {
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fcntl_args.cmd = args->cmd == LINUX_F_SETOWN ? F_SETOWN : F_GETOWN;
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return fcntl(p, &fcntl_args);
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}
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vp = (struct vnode *)fp->f_data;
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if (vp->v_type != VCHR)
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return EINVAL;
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if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p)))
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return error;
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d_tty = cdevsw[major(va.va_rdev)]->d_devtotty;
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if (!d_tty || (!(tp = (*d_tty)(va.va_rdev))))
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return EINVAL;
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if (args->cmd == LINUX_F_GETOWN) {
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p->p_retval[0] = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
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return 0;
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}
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if ((long)args->arg <= 0) {
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pgid = -(long)args->arg;
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} else {
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struct proc *p1 = pfind((long)args->arg);
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if (p1 == 0)
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return (ESRCH);
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pgid = (long)p1->p_pgrp->pg_id;
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}
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pgrp = pgfind(pgid);
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if (pgrp == NULL || pgrp->pg_session != p->p_session)
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return EPERM;
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tp->t_pgrp = pgrp;
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return 0;
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}
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return EINVAL;
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}
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int
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linux_lseek(struct proc *p, struct linux_lseek_args *args)
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{
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struct lseek_args /* {
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int fd;
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int pad;
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off_t offset;
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int whence;
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} */ tmp_args;
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int error;
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#ifdef DEBUG
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printf("Linux-emul(%d): lseek(%d, %d, %d)\n",
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p->p_pid, args->fdes, args->off, args->whence);
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#endif
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tmp_args.fd = args->fdes;
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tmp_args.offset = (off_t)args->off;
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tmp_args.whence = args->whence;
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error = lseek(p, &tmp_args);
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return error;
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}
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int
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linux_llseek(struct proc *p, struct linux_llseek_args *args)
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{
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struct lseek_args bsd_args;
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int error;
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off_t off;
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#ifdef DEBUG
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printf("Linux-emul(%d): llseek(%d, %d:%d, %d)\n",
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p->p_pid, args->fd, args->ohigh, args->olow, args->whence);
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#endif
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off = (args->olow) | (((off_t) args->ohigh) << 32);
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bsd_args.fd = args->fd;
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bsd_args.offset = off;
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bsd_args.whence = args->whence;
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if ((error = lseek(p, &bsd_args)))
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return error;
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if ((error = copyout(p->p_retval, (caddr_t)args->res, sizeof (off_t))))
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return error;
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p->p_retval[0] = 0;
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return 0;
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}
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struct linux_dirent {
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long dino;
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linux_off_t doff;
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unsigned short dreclen;
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char dname[LINUX_NAME_MAX + 1];
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};
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#define LINUX_RECLEN(de,namlen) \
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ALIGN((((char *)&(de)->dname - (char *)de) + (namlen) + 1))
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int
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linux_readdir(struct proc *p, struct linux_readdir_args *args)
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{
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struct linux_getdents_args lda;
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lda.fd = args->fd;
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lda.dent = args->dent;
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lda.count = 1;
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return linux_getdents(p, &lda);
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}
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int
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linux_getdents(struct proc *p, struct linux_getdents_args *args)
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{
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register struct dirent *bdp;
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struct vnode *vp;
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caddr_t inp, buf; /* BSD-format */
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int len, reclen; /* BSD-format */
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caddr_t outp; /* Linux-format */
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int resid, linuxreclen=0; /* Linux-format */
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struct file *fp;
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struct uio auio;
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struct iovec aiov;
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struct vattr va;
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off_t off;
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struct linux_dirent linux_dirent;
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int buflen, error, eofflag, nbytes, justone;
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u_long *cookies = NULL, *cookiep;
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int ncookies;
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#ifdef DEBUG
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printf("Linux-emul(%d): getdents(%d, *, %d)\n",
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p->p_pid, args->fd, args->count);
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#endif
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if ((error = getvnode(p->p_fd, args->fd, &fp)) != 0) {
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return (error);
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}
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if ((fp->f_flag & FREAD) == 0)
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return (EBADF);
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vp = (struct vnode *) fp->f_data;
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if (vp->v_type != VDIR)
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return (EINVAL);
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if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) {
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return error;
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}
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nbytes = args->count;
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if (nbytes == 1) {
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nbytes = sizeof (struct linux_dirent);
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justone = 1;
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}
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else
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justone = 0;
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off = fp->f_offset;
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#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
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buflen = max(DIRBLKSIZ, nbytes);
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buflen = min(buflen, MAXBSIZE);
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buf = malloc(buflen, M_TEMP, M_WAITOK);
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vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
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again:
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aiov.iov_base = buf;
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aiov.iov_len = buflen;
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auio.uio_iov = &aiov;
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auio.uio_iovcnt = 1;
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auio.uio_rw = UIO_READ;
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auio.uio_segflg = UIO_SYSSPACE;
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auio.uio_procp = p;
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auio.uio_resid = buflen;
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auio.uio_offset = off;
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if (cookies) {
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free(cookies, M_TEMP);
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cookies = NULL;
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}
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|
|
error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, &cookies);
|
|
if (error) {
|
|
goto out;
|
|
}
|
|
|
|
inp = buf;
|
|
outp = (caddr_t) args->dent;
|
|
resid = nbytes;
|
|
if ((len = buflen - auio.uio_resid) <= 0) {
|
|
goto eof;
|
|
}
|
|
|
|
cookiep = cookies;
|
|
|
|
if (cookies) {
|
|
/*
|
|
* When using cookies, the vfs has the option of reading from
|
|
* a different offset than that supplied (UFS truncates the
|
|
* offset to a block boundary to make sure that it never reads
|
|
* partway through a directory entry, even if the directory
|
|
* has been compacted).
|
|
*/
|
|
while (len > 0 && ncookies > 0 && *cookiep <= off) {
|
|
bdp = (struct dirent *) inp;
|
|
len -= bdp->d_reclen;
|
|
inp += bdp->d_reclen;
|
|
cookiep++;
|
|
ncookies--;
|
|
}
|
|
}
|
|
|
|
while (len > 0) {
|
|
if (cookiep && ncookies == 0)
|
|
break;
|
|
bdp = (struct dirent *) inp;
|
|
reclen = bdp->d_reclen;
|
|
if (reclen & 3) {
|
|
printf("linux_readdir: reclen=%d\n", reclen);
|
|
error = EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
if (bdp->d_fileno == 0) {
|
|
inp += reclen;
|
|
if (cookiep) {
|
|
off = *cookiep++;
|
|
ncookies--;
|
|
} else
|
|
off += reclen;
|
|
len -= reclen;
|
|
continue;
|
|
}
|
|
linuxreclen = LINUX_RECLEN(&linux_dirent, bdp->d_namlen);
|
|
if (reclen > len || resid < linuxreclen) {
|
|
outp++;
|
|
break;
|
|
}
|
|
linux_dirent.dino = (long) bdp->d_fileno;
|
|
if (justone) {
|
|
/*
|
|
* old linux-style readdir usage.
|
|
*/
|
|
linux_dirent.doff = (linux_off_t) linuxreclen;
|
|
linux_dirent.dreclen = (u_short) bdp->d_namlen;
|
|
} else {
|
|
linux_dirent.doff = (linux_off_t) off;
|
|
linux_dirent.dreclen = (u_short) linuxreclen;
|
|
}
|
|
strcpy(linux_dirent.dname, bdp->d_name);
|
|
if ((error = copyout((caddr_t)&linux_dirent, outp, linuxreclen))) {
|
|
goto out;
|
|
}
|
|
inp += reclen;
|
|
if (cookiep) {
|
|
off = *cookiep++;
|
|
ncookies--;
|
|
} else
|
|
off += reclen;
|
|
outp += linuxreclen;
|
|
resid -= linuxreclen;
|
|
len -= reclen;
|
|
if (justone)
|
|
break;
|
|
}
|
|
|
|
if (outp == (caddr_t) args->dent)
|
|
goto again;
|
|
fp->f_offset = off;
|
|
|
|
if (justone)
|
|
nbytes = resid + linuxreclen;
|
|
|
|
eof:
|
|
p->p_retval[0] = nbytes - resid;
|
|
out:
|
|
if (cookies)
|
|
free(cookies, M_TEMP);
|
|
VOP_UNLOCK(vp, 0, p);
|
|
free(buf, M_TEMP);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* These exist mainly for hooks for doing /compat/linux translation.
|
|
*/
|
|
|
|
int
|
|
linux_access(struct proc *p, struct linux_access_args *args)
|
|
{
|
|
struct access_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): access(%s, %d)\n",
|
|
p->p_pid, args->path, args->flags);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.flags = args->flags;
|
|
|
|
return access(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_unlink(struct proc *p, struct linux_unlink_args *args)
|
|
{
|
|
struct unlink_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): unlink(%s)\n",
|
|
p->p_pid, args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return unlink(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_chdir(struct proc *p, struct linux_chdir_args *args)
|
|
{
|
|
struct chdir_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): chdir(%s)\n",
|
|
p->p_pid, args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return chdir(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_chmod(struct proc *p, struct linux_chmod_args *args)
|
|
{
|
|
struct chmod_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): chmod(%s, %d)\n",
|
|
p->p_pid, args->path, args->mode);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.mode = args->mode;
|
|
|
|
return chmod(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_chown(struct proc *p, struct linux_chown_args *args)
|
|
{
|
|
struct chown_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): chown(%s, %d, %d)\n",
|
|
p->p_pid, args->path, args->uid, args->gid);
|
|
#endif
|
|
bsd.path = args->path;
|
|
/* XXX size casts here */
|
|
bsd.uid = args->uid;
|
|
bsd.gid = args->gid;
|
|
|
|
return chown(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_mkdir(struct proc *p, struct linux_mkdir_args *args)
|
|
{
|
|
struct mkdir_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTCREAT(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): mkdir(%s, %d)\n",
|
|
p->p_pid, args->path, args->mode);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.mode = args->mode;
|
|
|
|
return mkdir(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_rmdir(struct proc *p, struct linux_rmdir_args *args)
|
|
{
|
|
struct rmdir_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): rmdir(%s)\n",
|
|
p->p_pid, args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return rmdir(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_rename(struct proc *p, struct linux_rename_args *args)
|
|
{
|
|
struct rename_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->from);
|
|
CHECKALTCREAT(p, &sg, args->to);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): rename(%s, %s)\n",
|
|
p->p_pid, args->from, args->to);
|
|
#endif
|
|
bsd.from = args->from;
|
|
bsd.to = args->to;
|
|
|
|
return rename(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_symlink(struct proc *p, struct linux_symlink_args *args)
|
|
{
|
|
struct symlink_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
CHECKALTCREAT(p, &sg, args->to);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): symlink(%s, %s)\n",
|
|
p->p_pid, args->path, args->to);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.link = args->to;
|
|
|
|
return symlink(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_execve(struct proc *p, struct linux_execve_args *args)
|
|
{
|
|
struct execve_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): execve(%s)\n",
|
|
p->p_pid, args->path);
|
|
#endif
|
|
bsd.fname = args->path;
|
|
bsd.argv = args->argp;
|
|
bsd.envv = args->envp;
|
|
|
|
return execve(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_readlink(struct proc *p, struct linux_readlink_args *args)
|
|
{
|
|
struct readlink_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->name);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): readlink(%s, 0x%x, %d)\n",
|
|
p->p_pid, args->name, args->buf, args->count);
|
|
#endif
|
|
bsd.path = args->name;
|
|
bsd.buf = args->buf;
|
|
bsd.count = args->count;
|
|
|
|
return readlink(p, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_truncate(struct proc *p, struct linux_truncate_args *args)
|
|
{
|
|
struct otruncate_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(p, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
printf("Linux-emul(%d): truncate(%s)\n",
|
|
p->p_pid, args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return otruncate(p, &bsd);
|
|
}
|
|
|