/* $OpenBSD: hpux_file.c,v 1.13 2003/06/02 23:28:00 millert Exp $ */ /* $NetBSD: hpux_file.c,v 1.5 1997/04/27 21:40:48 thorpej Exp $ */ /* * Copyright (c) 1995, 1997 Jason R. Thorpe. All rights reserved. * Copyright (c) 1988 University of Utah. * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * 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. * * from: Utah $Hdr: hpux_compat.c 1.64 93/08/05$ * * @(#)hpux_compat.c 8.4 (Berkeley) 2/13/94 */ /* * File-related routines for HP-UX binary compatibility. Partially * modeled after sys/compat/linux/linux_file.c */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int hpux_stat1(struct proc *, void *, register_t *, int); static void bsd_to_hpux_stat(struct stat *, struct hpux_stat *); static void bsd_to_hpux_ostat(struct stat *, struct hpux_ostat *); /* * HP-UX creat(2) system call. * * Just call open(2) with the TRUNC, CREAT and WRONLY flags. */ int hpux_sys_creat(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_creat_args /* { syscallarg(char *) path; syscallarg(int) mode; } */ *uap = v; struct sys_open_args oa; caddr_t sg; sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path)); SCARG(&oa, path) = SCARG(uap, path); SCARG(&oa, flags) = O_CREAT | O_TRUNC | O_WRONLY; SCARG(&oa, mode) = SCARG(uap, mode); return sys_open(p, &oa, retval); } /* * HP-UX open(2) system call. * * We need to remap some of the bits in the mode mask: * * - O_CREAT, O_TRUNC, and O_EXCL must me remapped. * - O_NONBLOCK is remapped and remembered. * - O_FNDELAY is remembered. * - O_SYNCIO is removed entirely. */ int hpux_sys_open(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_open_args /* { syscallarg(char *) path; syscallarg(int) flags; syscallarg(int) mode; } */ *uap = v; struct sys_open_args oa; int flags, nflags, error; caddr_t sg; sg = stackgap_init(p->p_emul); /* * Deal with the mode flags first, since they will affect * how we check for the alternate path. */ flags = SCARG(uap, flags); nflags = flags & ~(HPUXNONBLOCK|HPUXFSYNCIO|HPUXFEXCL|HPUXFTRUNC|HPUXFCREAT); if (flags & HPUXFCREAT) { /* * Simulate the pre-NFS behavior that opening a * file for READ+CREATE ignores the CREATE (unless * EXCL is set in which case we will return the * proper error). */ if ((flags & HPUXFEXCL) || (FFLAGS(flags) & FWRITE)) nflags |= O_CREAT; } if (flags & HPUXFTRUNC) nflags |= O_TRUNC; if (flags & HPUXFEXCL) nflags |= O_EXCL; if (flags & HPUXNONBLOCK) nflags |= O_NDELAY; /* * Do the alternate pathname check. */ if (SCARG(&oa, flags) & O_CREAT) HPUX_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path)); else HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); /* * Fill in the new arguments and call the NetBSD open(2). */ SCARG(&oa, path) = SCARG(uap, path); SCARG(&oa, flags) = nflags; SCARG(&oa, mode) = SCARG(uap, mode); error = sys_open(p, &oa, retval); /* * Record non-blocking mode for fcntl, read, write, etc. */ if ((error == 0) && (nflags & O_NDELAY)) p->p_fd->fd_ofileflags[*retval] |= (flags & HPUXNONBLOCK) ? HPUX_UF_NONBLOCK_ON : HPUX_UF_FNDELAY_ON; return (error); } /* * HP-UX fcntl(2) system call. */ int hpux_sys_fcntl(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_fcntl_args /* { syscallarg(int) fd; syscallarg(int) cmd; syscallarg(int) arg; } */ *uap = v; int arg, mode, error, flg = F_POSIX; struct file *fp; char *pop; struct hpux_flock hfl; struct flock fl; struct vnode *vp; struct sys_fcntl_args fa; struct filedesc *fdp; if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) return (EBADF); FREF(fp); pop = &p->p_fd->fd_ofileflags[SCARG(uap, fd)]; arg = SCARG(uap, arg); switch (SCARG(uap, cmd)) { case F_SETFL: if (arg & HPUXNONBLOCK) *pop |= HPUX_UF_NONBLOCK_ON; else *pop &= ~HPUX_UF_NONBLOCK_ON; if (arg & HPUXNDELAY) *pop |= HPUX_UF_FNDELAY_ON; else *pop &= ~HPUX_UF_FNDELAY_ON; if (*pop & (HPUX_UF_NONBLOCK_ON|HPUX_UF_FNDELAY_ON|HPUX_UF_FIONBIO_ON)) arg |= FNONBLOCK; else arg &= ~FNONBLOCK; arg &= ~(HPUXNONBLOCK|HPUXFSYNCIO|HPUXFREMOTE); break; case F_GETFL: case F_DUPFD: case F_GETFD: case F_SETFD: break; case HPUXF_SETLKW: flg |= F_WAIT; /* Fall into F_SETLK */ case HPUXF_SETLK: if (fp->f_type != DTYPE_VNODE) { error = EBADF; goto out; } vp = (struct vnode *)fp->f_data; /* Copy in the lock structure */ error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&hfl, sizeof (hfl)); if (error) goto out; fl.l_start = hfl.hl_start; fl.l_len = hfl.hl_len; fl.l_pid = hfl.hl_pid; fl.l_type = hfl.hl_type; fl.l_whence = hfl.hl_whence; if (fl.l_whence == SEEK_CUR) fl.l_start += fp->f_offset; switch (fl.l_type) { case F_RDLCK: if ((fp->f_flag & FREAD) == 0) { error = EBADF; goto out; } p->p_flag |= P_ADVLOCK; error = VOP_ADVLOCK(vp, (caddr_t)p, F_SETLK, &fl, flg); goto out; case F_WRLCK: if ((fp->f_flag & FWRITE) == 0) { error = EBADF; goto out; } p->p_flag |= P_ADVLOCK; error = VOP_ADVLOCK(vp, (caddr_t)p, F_SETLK, &fl, flg); goto out; case F_UNLCK: error = VOP_ADVLOCK(vp, (caddr_t)p, F_UNLCK, &fl, F_POSIX); goto out; default: error = EINVAL; goto out; } /* NOTREACHED */ case F_GETLK: if (fp->f_type != DTYPE_VNODE) error = EBADF; goto out; vp = (struct vnode *)fp->f_data; /* Copy in the lock structure */ error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&hfl, sizeof (hfl)); if (error) goto out; fl.l_start = hfl.hl_start; fl.l_len = hfl.hl_len; fl.l_pid = hfl.hl_pid; fl.l_type = hfl.hl_type; fl.l_whence = hfl.hl_whence; if (fl.l_whence == SEEK_CUR) fl.l_start += fp->f_offset; if ((error = VOP_ADVLOCK(vp, (caddr_t)p, F_GETLK, &fl, F_POSIX))) goto out; hfl.hl_start = fl.l_start; hfl.hl_len = fl.l_len; hfl.hl_pid = fl.l_pid; hfl.hl_type = fl.l_type; hfl.hl_whence = fl.l_whence; error = copyout((caddr_t)&hfl, (caddr_t)SCARG(uap, arg), sizeof (hfl)); goto out; default: error = EINVAL; goto out; } /* * Pass whatever's left on to the NetBSD fcntl(2). */ SCARG(&fa, fd) = SCARG(uap, fd); SCARG(&fa, cmd) = SCARG(uap, cmd); SCARG(&fa, arg) = (void *)arg; error = sys_fcntl(p, &fa, retval); if ((error == 0) && (SCARG(&fa, cmd) == F_GETFL)) { mode = *retval; *retval &= ~(O_CREAT|O_TRUNC|O_EXCL); if (mode & FNONBLOCK) { if (*pop & HPUX_UF_NONBLOCK_ON) *retval |= HPUXNONBLOCK; if ((*pop & HPUX_UF_FNDELAY_ON) == 0) *retval &= ~HPUXNDELAY; } if (mode & O_CREAT) *retval |= HPUXFCREAT; if (mode & O_TRUNC) *retval |= HPUXFTRUNC; if (mode & O_EXCL) *retval |= HPUXFEXCL; } out: FRELE(fp); return (error); } /* * HP-UX fstat(2) system call. */ int hpux_sys_fstat(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_fstat_args /* { syscallarg(int) fd; syscallarg(struct hpux_stat *) sb; } */ *uap = v; struct sys_fstat_args fsa; struct hpux_stat tmphst; struct stat *st, tmpst; caddr_t sg; int error; sg = stackgap_init(p->p_emul); st = stackgap_alloc(&sg, sizeof (struct stat)); SCARG(&fsa, fd) = SCARG(uap, fd); SCARG(&fsa, sb) = st; if ((error = sys_fstat(p, &fsa, retval))) return (error); if ((error = copyin(st, &tmpst, sizeof(tmpst)))) return (error); bsd_to_hpux_stat(&tmpst, &tmphst); return (copyout(&tmphst, SCARG(uap, sb), sizeof(struct hpux_stat))); } /* * HP-UX stat(2) system call. */ int hpux_sys_stat(p, v, retval) struct proc *p; void *v; register_t *retval; { return (hpux_stat1(p, v, retval, 0)); } /* * HP-UX lstat(2) system call. */ int hpux_sys_lstat(p, v, retval) struct proc *p; void *v; register_t *retval; { return (hpux_stat1(p, v, retval, 1)); } /* * Do the meat of stat(2) and lstat(2). */ static int hpux_stat1(p, v, retval, dolstat) struct proc *p; void *v; register_t *retval; int dolstat; { struct hpux_sys_stat_args /* { syscallarg(char *) path; syscallarg(struct hpux_stat *) sb; } */ *uap = v; struct sys_stat_args sa; struct hpux_stat tmphst; struct stat *st, tmpst; caddr_t sg; int error; sg = stackgap_init(p->p_emul); st = stackgap_alloc(&sg, sizeof (struct stat)); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); SCARG(&sa, ub) = st; SCARG(&sa, path) = SCARG(uap, path); if (dolstat) error = sys_lstat(p, &sa, retval); else error = sys_stat(p, &sa, retval); if (error) return (error); if ((error = copyin(st, &tmpst, sizeof(tmpst)))) return (error); bsd_to_hpux_stat(&tmpst, &tmphst); return (copyout(&tmphst, SCARG(uap, sb), sizeof(struct hpux_stat))); } /* * The old HP-UX fstat(2) system call. */ int hpux_sys_fstat_6x(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_fstat_6x_args /* { syscallarg(int) fd; syscallarg(struct hpux_ostat *) sb; } */ *uap = v; struct sys_fstat_args fsa; struct hpux_ostat tmphst; struct stat *st, tmpst; caddr_t sg; int error; sg = stackgap_init(p->p_emul); st = stackgap_alloc(&sg, sizeof (struct stat)); SCARG(&fsa, fd) = SCARG(uap, fd); SCARG(&fsa, sb) = st; if ((error = sys_fstat(p, &fsa, retval))) return (error); if ((error = copyin(st, &tmpst, sizeof(tmpst)))) return (error); bsd_to_hpux_ostat(&tmpst, &tmphst); return (copyout(&tmphst, SCARG(uap, sb), sizeof(struct hpux_ostat))); } /* * The old HP-UX stat(2) system call. */ int hpux_sys_stat_6x(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_stat_6x_args /* { syscallarg(char *) path; syscallarg(struct hpux_ostat *) sb; } */ *uap = v; struct sys_stat_args sa; struct hpux_ostat tmphst; struct stat *st, tmpst; caddr_t sg; int error; sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); st = stackgap_alloc(&sg, sizeof (struct stat)); SCARG(&sa, ub) = st; SCARG(&sa, path) = SCARG(uap, path); if ((error = sys_stat(p, &sa, retval))) return (error); if ((error = copyin(st, &tmpst, sizeof(tmpst)))) return (error); bsd_to_hpux_ostat(&tmpst, &tmphst); return (copyout(&tmphst, SCARG(uap, sb), sizeof(struct hpux_ostat))); } /* * Convert a NetBSD stat structure to an HP-UX stat structure. */ static void bsd_to_hpux_stat(sb, hsb) struct stat *sb; struct hpux_stat *hsb; { bzero((caddr_t)hsb, sizeof(struct hpux_stat)); hsb->hst_dev = (long)sb->st_dev; hsb->hst_ino = (u_long)sb->st_ino; hsb->hst_mode = (u_short)sb->st_mode; hsb->hst_nlink = (u_short)sb->st_nlink; hsb->hst_uid = (u_long)sb->st_uid; hsb->hst_gid = (u_long)sb->st_gid; hsb->hst_rdev = (long)bsdtohpuxdev(sb->st_rdev); /* * XXX Let's just hope that the old binary doesn't lose. */ hsb->hst_old_uid = (u_short)sb->st_uid; hsb->hst_old_gid = (u_short)sb->st_gid; if (sb->st_size < (off_t)(((off_t)1) << 32)) hsb->hst_size = (long)sb->st_size; else hsb->hst_size = -2; hsb->hst_atime = (long)sb->st_atime; hsb->hst_mtime = (long)sb->st_mtime; hsb->hst_ctime = (long)sb->st_ctime; hsb->hst_blksize = (long)sb->st_blksize; hsb->hst_blocks = (long)sb->st_blocks; } /* * Convert a NetBSD stat structure to an old-style HP-UX stat structure. */ static void bsd_to_hpux_ostat(sb, hsb) struct stat *sb; struct hpux_ostat *hsb; { bzero(hsb, sizeof(struct hpux_ostat)); hsb->hst_dev = (u_short)sb->st_dev; hsb->hst_ino = (u_short)sb->st_ino; hsb->hst_mode = (u_short)sb->st_mode; hsb->hst_nlink = (u_short)sb->st_nlink; hsb->hst_uid = (u_short)sb->st_uid; hsb->hst_gid = (u_short)sb->st_gid; hsb->hst_rdev = (u_short)sb->st_rdev; if (sb->st_size < (off_t)(((off_t)1) << 32)) hsb->hst_size = (int)sb->st_size; else hsb->hst_size = -2; hsb->hst_atime = (int)sb->st_atime; hsb->hst_mtime = (int)sb->st_mtime; hsb->hst_ctime = (int)sb->st_ctime; } /* * HP-UX access(2) system call. */ int hpux_sys_access(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_access_args /* { syscallarg(char *) path; syscallarg(int) flags; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_access(p, uap, retval)); } /* * HP-UX unlink(2) system call. */ int hpux_sys_unlink(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_unlink_args /* { syscallarg(char *) path; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_unlink(p, uap, retval)); } /* * HP-UX chdir(2) system call. */ int hpux_sys_chdir(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_chdir_args /* { syscallarg(char *) path; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_chdir(p, uap, retval)); } /* * HP-UX mknod(2) system call. */ int hpux_sys_mknod(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_mknod_args /* { syscallarg(char *) path; syscallarg(int) mode; syscallarf(int) dev; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); struct sys_mkfifo_args bma; HPUX_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path)); /* * BSD handles FIFOs separately. */ if (SCARG(uap, mode) & S_IFIFO) { SCARG(&bma, path) = SCARG(uap, path); SCARG(&bma, mode) = SCARG(uap, mode); return (sys_mkfifo(p, uap, retval)); } else return (sys_mknod(p, uap, retval)); } /* * HP-UX chmod(2) system call. */ int hpux_sys_chmod(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_chmod_args /* { syscallarg(char *) path; syscallarg(int) mode; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_chmod(p, uap, retval)); } /* * HP-UX chown(2) system call. */ int hpux_sys_chown(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_chown_args /* { syscallarg(char *) path; syscallarg(int) uid; syscallarg(int) gid; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); /* XXX What about older HP-UX executables? */ return (sys_lchown(p, uap, retval)); } /* * HP-UX rename(2) system call. */ int hpux_sys_rename(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_rename_args /* { syscallarg(char *) from; syscallarg(char *) to; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, from)); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, to)); return (sys_rename(p, uap, retval)); } /* * HP-UX mkdir(2) system call. */ int hpux_sys_mkdir(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_mkdir_args /* { syscallarg(char *) path; syscallarg(int) mode; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path)); return (sys_mkdir(p, uap, retval)); } /* * HP-UX rmdir(2) system call. */ int hpux_sys_rmdir(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_rmdir_args /* { syscallarg(char *) path; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_rmdir(p, uap, retval)); } /* * HP-UX symlink(2) system call. */ int hpux_sys_symlink(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_symlink_args /* { syscallarg(char *) path; syscallarg(char *) link; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); HPUX_CHECK_ALT_CREAT(p, &sg, SCARG(uap, link)); return (sys_symlink(p, uap, retval)); } /* * HP-UX readlink(2) system call. */ int hpux_sys_readlink(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_readlink_args /* { syscallarg(char *) path; syscallarg(char *) buf; syscallarg(int) count; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_readlink(p, uap, retval)); } /* * HP-UX truncate(2) system call. */ int hpux_sys_truncate(p, v, retval) struct proc *p; void *v; register_t *retval; { struct hpux_sys_truncate_args /* { syscallarg(char *) path; syscallarg(long) length; } */ *uap = v; caddr_t sg = stackgap_init(p->p_emul); HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (compat_43_sys_truncate(p, uap, retval)); }