diff options
Diffstat (limited to 'sys/compat/linux/linux_file.c')
-rw-r--r-- | sys/compat/linux/linux_file.c | 859 |
1 files changed, 0 insertions, 859 deletions
diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c deleted file mode 100644 index 66e80c60a68b7..0000000000000 --- a/sys/compat/linux/linux_file.c +++ /dev/null @@ -1,859 +0,0 @@ -/*- - * Copyright (c) 1994-1995 Søren Schmidt - * All rights reserved. - * - * 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 - * in this position and unchanged. - * 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. The name of the author may not be used to endorse or promote products - * derived from this software withough specific prior written permission - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. - * - * $FreeBSD$ - */ - -#include "opt_compat.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/sysproto.h> -#include <sys/fcntl.h> -#include <sys/file.h> -#include <sys/filedesc.h> -#include <sys/lock.h> -#include <sys/proc.h> -#include <sys/vnode.h> -#include <sys/malloc.h> -#include <sys/dirent.h> -#include <sys/conf.h> -#include <sys/tty.h> - -#include <machine/../linux/linux.h> -#include <machine/../linux/linux_proto.h> -#include <compat/linux/linux_util.h> - -int -linux_creat(struct proc *p, struct linux_creat_args *args) -{ - struct open_args /* { - char *path; - int flags; - int mode; - } */ bsd_open_args; - caddr_t sg; - - sg = stackgap_init(); - CHECKALTCREAT(p, &sg, args->path); - -#ifdef DEBUG - printf("Linux-emul(%d): creat(%s, %d)\n", - p->p_pid, args->path, args->mode); -#endif - bsd_open_args.path = args->path; - bsd_open_args.mode = args->mode; - bsd_open_args.flags = O_WRONLY | O_CREAT | O_TRUNC; - return open(p, &bsd_open_args); -} - -int -linux_open(struct proc *p, struct linux_open_args *args) -{ - struct open_args /* { - char *path; - int flags; - int mode; - } */ bsd_open_args; - int error; - caddr_t sg; - - sg = stackgap_init(); - - if (args->flags & LINUX_O_CREAT) - CHECKALTCREAT(p, &sg, args->path); - else - CHECKALTEXIST(p, &sg, args->path); - -#ifdef DEBUG - printf("Linux-emul(%d): open(%s, 0x%x, 0x%x)\n", - p->p_pid, args->path, args->flags, args->mode); -#endif - bsd_open_args.flags = 0; - if (args->flags & LINUX_O_RDONLY) - bsd_open_args.flags |= O_RDONLY; - if (args->flags & LINUX_O_WRONLY) - bsd_open_args.flags |= O_WRONLY; - if (args->flags & LINUX_O_RDWR) - bsd_open_args.flags |= O_RDWR; - if (args->flags & LINUX_O_NDELAY) - bsd_open_args.flags |= O_NONBLOCK; - if (args->flags & LINUX_O_APPEND) - bsd_open_args.flags |= O_APPEND; - if (args->flags & LINUX_O_SYNC) - bsd_open_args.flags |= O_FSYNC; - if (args->flags & LINUX_O_NONBLOCK) - bsd_open_args.flags |= O_NONBLOCK; - if (args->flags & LINUX_FASYNC) - bsd_open_args.flags |= O_ASYNC; - if (args->flags & LINUX_O_CREAT) - bsd_open_args.flags |= O_CREAT; - if (args->flags & LINUX_O_TRUNC) - bsd_open_args.flags |= O_TRUNC; - if (args->flags & LINUX_O_EXCL) - bsd_open_args.flags |= O_EXCL; - if (args->flags & LINUX_O_NOCTTY) - bsd_open_args.flags |= O_NOCTTY; - bsd_open_args.path = args->path; - bsd_open_args.mode = args->mode; - - error = open(p, &bsd_open_args); - if (!error && !(bsd_open_args.flags & O_NOCTTY) && - SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { - struct filedesc *fdp = p->p_fd; - struct file *fp = fdp->fd_ofiles[p->p_retval[0]]; - - if (fp->f_type == DTYPE_VNODE) - fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, p); - } -#ifdef DEBUG - printf("Linux-emul(%d): open returns error %d\n", - p->p_pid, error); -#endif - return error; -} - -struct linux_flock { - short l_type; - short l_whence; - linux_off_t l_start; - linux_off_t l_len; - linux_pid_t l_pid; -}; - -static void -linux_to_bsd_flock(struct linux_flock *linux_flock, struct flock *bsd_flock) -{ - switch (linux_flock->l_type) { - case LINUX_F_RDLCK: - bsd_flock->l_type = F_RDLCK; - break; - case LINUX_F_WRLCK: - bsd_flock->l_type = F_WRLCK; - break; - case LINUX_F_UNLCK: - bsd_flock->l_type = F_UNLCK; - break; - default: - bsd_flock->l_type = -1; - break; - } - bsd_flock->l_whence = linux_flock->l_whence; - bsd_flock->l_start = (off_t)linux_flock->l_start; - bsd_flock->l_len = (off_t)linux_flock->l_len; - bsd_flock->l_pid = (pid_t)linux_flock->l_pid; -} - -static void -bsd_to_linux_flock(struct flock *bsd_flock, struct linux_flock *linux_flock) -{ - switch (bsd_flock->l_type) { - case F_RDLCK: - linux_flock->l_type = LINUX_F_RDLCK; - break; - case F_WRLCK: - linux_flock->l_type = LINUX_F_WRLCK; - break; - case F_UNLCK: - linux_flock->l_type = LINUX_F_UNLCK; - break; - } - linux_flock->l_whence = bsd_flock->l_whence; - linux_flock->l_start = (linux_off_t)bsd_flock->l_start; - linux_flock->l_len = (linux_off_t)bsd_flock->l_len; - linux_flock->l_pid = (linux_pid_t)bsd_flock->l_pid; -} - -int -linux_fcntl(struct proc *p, struct linux_fcntl_args *args) -{ - int error, result; - struct fcntl_args /* { - int fd; - int cmd; - int arg; - } */ fcntl_args; - struct linux_flock linux_flock; - struct flock *bsd_flock; - caddr_t sg; - - sg = stackgap_init(); - bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(struct flock)); - -#ifdef DEBUG - printf("Linux-emul(%d): fcntl(%d, %08x, *)\n", - p->p_pid, args->fd, args->cmd); -#endif - fcntl_args.fd = args->fd; - - switch (args->cmd) { - case LINUX_F_DUPFD: - fcntl_args.cmd = F_DUPFD; - fcntl_args.arg = args->arg; - return fcntl(p, &fcntl_args); - - case LINUX_F_GETFD: - fcntl_args.cmd = F_GETFD; - return fcntl(p, &fcntl_args); - - case LINUX_F_SETFD: - fcntl_args.cmd = F_SETFD; - fcntl_args.arg = args->arg; - return fcntl(p, &fcntl_args); - - case LINUX_F_GETFL: - fcntl_args.cmd = F_GETFL; - error = fcntl(p, &fcntl_args); - result = p->p_retval[0]; - p->p_retval[0] = 0; - if (result & O_RDONLY) p->p_retval[0] |= LINUX_O_RDONLY; - if (result & O_WRONLY) p->p_retval[0] |= LINUX_O_WRONLY; - if (result & O_RDWR) p->p_retval[0] |= LINUX_O_RDWR; - if (result & O_NDELAY) p->p_retval[0] |= LINUX_O_NONBLOCK; - if (result & O_APPEND) p->p_retval[0] |= LINUX_O_APPEND; - if (result & O_FSYNC) p->p_retval[0] |= LINUX_O_SYNC; - if (result & O_ASYNC) p->p_retval[0] |= LINUX_FASYNC; - return error; - - case LINUX_F_SETFL: - fcntl_args.arg = 0; - if (args->arg & LINUX_O_NDELAY) fcntl_args.arg |= O_NONBLOCK; - if (args->arg & LINUX_O_APPEND) fcntl_args.arg |= O_APPEND; - if (args->arg & LINUX_O_SYNC) fcntl_args.arg |= O_FSYNC; - if (args->arg & LINUX_FASYNC) fcntl_args.arg |= O_ASYNC; - fcntl_args.cmd = F_SETFL; - return fcntl(p, &fcntl_args); - - case LINUX_F_GETLK: - if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock, - sizeof(struct linux_flock)))) - return error; - linux_to_bsd_flock(&linux_flock, bsd_flock); - fcntl_args.cmd = F_GETLK; - fcntl_args.arg = (int)bsd_flock; - error = fcntl(p, &fcntl_args); - if (error) - return error; - bsd_to_linux_flock(bsd_flock, &linux_flock); - return copyout((caddr_t)&linux_flock, (caddr_t)args->arg, - sizeof(struct linux_flock)); - - case LINUX_F_SETLK: - if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock, - sizeof(struct linux_flock)))) - return error; - linux_to_bsd_flock(&linux_flock, bsd_flock); - fcntl_args.cmd = F_SETLK; - fcntl_args.arg = (int)bsd_flock; - return fcntl(p, &fcntl_args); - - case LINUX_F_SETLKW: - if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock, - sizeof(struct linux_flock)))) - return error; - linux_to_bsd_flock(&linux_flock, bsd_flock); - fcntl_args.cmd = F_SETLKW; - fcntl_args.arg = (int)bsd_flock; - return fcntl(p, &fcntl_args); - - case LINUX_F_GETOWN: - fcntl_args.cmd = F_GETOWN; - return fcntl(p, &fcntl_args); - - case LINUX_F_SETOWN: - fcntl_args.cmd = F_SETOWN; - fcntl_args.arg = args->arg; - return fcntl(p, &fcntl_args); - } - return EINVAL; -} - -int -linux_lseek(struct proc *p, struct linux_lseek_args *args) -{ - - struct lseek_args /* { - int fd; - int pad; - off_t offset; - int whence; - } */ tmp_args; - int error; - -#ifdef DEBUG - printf("Linux-emul(%ld): lseek(%d, %ld, %d)\n", - (long)p->p_pid, args->fdes, args->off, args->whence); -#endif - tmp_args.fd = args->fdes; - tmp_args.offset = (off_t)args->off; - tmp_args.whence = args->whence; - error = lseek(p, &tmp_args); - return error; -} - -int -linux_llseek(struct proc *p, struct linux_llseek_args *args) -{ - struct lseek_args bsd_args; - int error; - off_t off; - -#ifdef DEBUG - printf("Linux-emul(%d): llseek(%d, %d:%d, %d)\n", - p->p_pid, args->fd, args->ohigh, args->olow, args->whence); -#endif - off = (args->olow) | (((off_t) args->ohigh) << 32); - - bsd_args.fd = args->fd; - bsd_args.offset = off; - bsd_args.whence = args->whence; - - if ((error = lseek(p, &bsd_args))) - return error; - - if ((error = copyout(p->p_retval, (caddr_t)args->res, sizeof (off_t)))) - return error; - - p->p_retval[0] = 0; - return 0; -} - - -struct linux_dirent { - long dino; - linux_off_t doff; - unsigned short dreclen; - char dname[LINUX_NAME_MAX + 1]; -}; - -#define LINUX_RECLEN(de,namlen) \ - ALIGN((((char *)&(de)->dname - (char *)de) + (namlen) + 1)) - -int -linux_readdir(struct proc *p, struct linux_readdir_args *args) -{ - struct linux_getdents_args lda; - - lda.fd = args->fd; - lda.dent = args->dent; - lda.count = 1; - return linux_getdents(p, &lda); -} - -int -linux_getdents(struct proc *p, struct linux_getdents_args *args) -{ - register struct dirent *bdp; - struct vnode *vp; - caddr_t inp, buf; /* BSD-format */ - int len, reclen; /* BSD-format */ - caddr_t outp; /* Linux-format */ - int resid, linuxreclen=0; /* Linux-format */ - struct file *fp; - struct uio auio; - struct iovec aiov; - struct vattr va; - off_t off; - struct linux_dirent linux_dirent; - int buflen, error, eofflag, nbytes, justone; - u_long *cookies = NULL, *cookiep; - int ncookies; - -#ifdef DEBUG - printf("Linux-emul(%d): getdents(%d, *, %d)\n", - p->p_pid, args->fd, args->count); -#endif - if ((error = getvnode(p->p_fd, args->fd, &fp)) != 0) { - return (error); - } - - if ((fp->f_flag & FREAD) == 0) - return (EBADF); - - vp = (struct vnode *) fp->f_data; - - if (vp->v_type != VDIR) - return (EINVAL); - - if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) { - return error; - } - - nbytes = args->count; - if (nbytes == 1) { - nbytes = sizeof (struct linux_dirent); - justone = 1; - } - else - justone = 0; - - off = fp->f_offset; -#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ - buflen = max(DIRBLKSIZ, nbytes); - buflen = min(buflen, MAXBSIZE); - buf = malloc(buflen, M_TEMP, M_WAITOK); - vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p); -again: - aiov.iov_base = buf; - aiov.iov_len = buflen; - auio.uio_iov = &aiov; - auio.uio_iovcnt = 1; - auio.uio_rw = UIO_READ; - auio.uio_segflg = UIO_SYSSPACE; - auio.uio_procp = p; - auio.uio_resid = buflen; - auio.uio_offset = off; - - if (cookies) { - free(cookies, M_TEMP); - cookies = NULL; - } - - 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 + reclen); - 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_lchown(struct proc *p, struct linux_lchown_args *args) -{ - struct lchown_args bsd; - caddr_t sg; - - sg = stackgap_init(); - CHECKALTEXIST(p, &sg, args->path); - -#ifdef DEBUG - printf("Linux-emul(%d): lchown(%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 lchown(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_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(%ld): readlink(%s, %p, %d)\n", - (long)p->p_pid, args->name, (void *)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 truncate_args bsd; - caddr_t sg; - - sg = stackgap_init(); - CHECKALTEXIST(p, &sg, args->path); - -#ifdef DEBUG - printf("Linux-emul(%d): truncate(%s, %ld)\n", - p->p_pid, args->path, args->length); -#endif - bsd.path = args->path; - bsd.length = args->length; - - return truncate(p, &bsd); -} - -int -linux_link(struct proc *p, struct linux_link_args *args) -{ - struct link_args bsd; - caddr_t sg; - - sg = stackgap_init(); - CHECKALTEXIST(p, &sg, args->path); - CHECKALTCREAT(p, &sg, args->to); - -#ifdef DEBUG - printf("Linux-emul(%d): link(%s, %s)\n", p->p_pid, args->path, args->to); -#endif - - bsd.path = args->path; - bsd.link = args->to; - - return link(p, &bsd); -} - -int -linux_getcwd(struct proc *p, struct linux_getcwd_args *args) -{ - struct __getcwd_args bsd; - caddr_t sg; - int error, len; - -#ifdef DEBUG - printf("Linux-emul(%ld): getcwd(%p, %ld)\n", (long)p->p_pid, - args->buf, args->bufsize); -#endif - - sg = stackgap_init(); - bsd.buf = stackgap_alloc(&sg, SPARE_USRSPACE); - bsd.buflen = SPARE_USRSPACE; - error = __getcwd(p, &bsd); - if (!error) { - len = strlen(bsd.buf) + 1; - if (len <= args->bufsize) { - p->p_retval[0] = len; - error = copyout(bsd.buf, args->buf, len); - } - else - error = ERANGE; - } - return (error); -} - -int -linux_fdatasync(p, uap) - struct proc *p; - struct linux_fdatasync_args *uap; -{ - struct fsync_args bsd; - - bsd.fd = uap->fd; - return fsync(p, &bsd); -} - -int -linux_pread(p, uap) - struct proc *p; - struct linux_pread_args *uap; -{ - struct pread_args bsd; - - bsd.fd = uap->fd; - bsd.buf = uap->buf; - bsd.nbyte = uap->nbyte; - bsd.offset = uap->offset; - return pread(p, &bsd); -} - -int -linux_pwrite(p, uap) - struct proc *p; - struct linux_pwrite_args *uap; -{ - struct pwrite_args bsd; - - bsd.fd = uap->fd; - bsd.buf = uap->buf; - bsd.nbyte = uap->nbyte; - bsd.offset = uap->offset; - return pwrite(p, &bsd); -} |