FreeBSD/Linux Kernel Cross Reference
sys/compat/osf1/osf1_file.c

     /* $NetBSD: osf1_file.c,v 1.30 2008/03/21 21:54:59 ad Exp $ */
     
     /*
      * Copyright (c) 1999 Christopher G. Demetriou.  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.
     * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Christopher G. Demetriou
     *      for the NetBSD Project.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without 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.
     */
    
    /*
     * Copyright (c) 1994, 1995 Carnegie-Mellon University.
     * All rights reserved.
     *
     * Author: Chris G. Demetriou
     *
     * Permission to use, copy, modify and distribute this software and
     * its documentation is hereby granted, provided that both the copyright
     * notice and this permission notice appear in all copies of the
     * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     *
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     *
     * Carnegie Mellon requests users of this software to return to
     *
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     *
     * any improvements or extensions that they make and grant Carnegie the
     * rights to redistribute these changes.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: osf1_file.c,v 1.30 2008/03/21 21:54:59 ad Exp $");
    
    #if defined(_KERNEL_OPT)
    #include "opt_syscall_debug.h"
    #endif
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/namei.h>
    #include <sys/proc.h>
    #include <sys/file.h>
    #include <sys/stat.h>
    #include <sys/filedesc.h>
    #include <sys/kernel.h>
    #include <sys/malloc.h>
    #include <sys/mman.h>
    #include <sys/mount.h>
    #include <sys/signal.h>
    #include <sys/signalvar.h>
    #include <sys/reboot.h>
    #include <sys/syscallargs.h>
    #include <sys/exec.h>
    #include <sys/vnode.h>
    #include <sys/socketvar.h>
    #include <sys/resource.h>
    #include <sys/resourcevar.h>
    #include <sys/wait.h>
    #include <sys/vfs_syscalls.h>
    
    #include <compat/osf1/osf1.h>
    #include <compat/osf1/osf1_syscallargs.h>
    #include <compat/common/compat_util.h>
    #include <compat/osf1/osf1_cvt.h>
    
    int
    osf1_sys_access(struct lwp *l, const struct osf1_sys_access_args *uap, register_t *retval)
    {
            struct sys_access_args a;
            unsigned long leftovers;
   
           SCARG(&a, path) = SCARG(uap, path);
   
           /* translate flags */
           SCARG(&a, flags) = emul_flags_translate(osf1_access_flags_xtab,
               SCARG(uap, flags), &leftovers);
           if (leftovers != 0)
                   return (EINVAL);
   
           return sys_access(l, &a, retval);
   }
   
   int
   osf1_sys_execve(struct lwp *l, const struct osf1_sys_execve_args *uap, register_t *retval)
   {
           struct sys_execve_args ap;
   
           SCARG(&ap, path) = SCARG(uap, path);
           SCARG(&ap, argp) = SCARG(uap, argp);
           SCARG(&ap, envp) = SCARG(uap, envp);
   
           return sys_execve(l, &ap, retval);
   }
   
   /*
    * Get file status; this version does not follow links.
    */
   /* ARGSUSED */
   int
   osf1_sys_lstat(struct lwp *l, const struct osf1_sys_lstat_args *uap, register_t *retval)
   {
           struct stat sb;
           struct osf1_stat osb;
           int error;
   
           error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb);
           if (error)
                   return (error);
           osf1_cvt_stat_from_native(&sb, &osb);
           error = copyout(&osb, SCARG(uap, ub), sizeof (osb));
           return (error);
   }
   
   /*
    * Get file status; this version does not follow links.
    */
   /* ARGSUSED */
   int
   osf1_sys_lstat2(struct lwp *l, const struct osf1_sys_lstat2_args *uap, register_t *retval)
   {
           struct stat sb;
           struct osf1_stat2 osb;
           int error;
   
           error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb);
           if (error)
                   return (error);
           osf1_cvt_stat2_from_native(&sb, &osb);
           error = copyout((void *)&osb, (void *)SCARG(uap, ub), sizeof (osb));
           return (error);
   }
   
   int
   osf1_sys_mknod(struct lwp *l, const struct osf1_sys_mknod_args *uap, register_t *retval)
   {
           struct sys_mknod_args a;
   
           SCARG(&a, path) = SCARG(uap, path);
           SCARG(&a, mode) = SCARG(uap, mode);
           SCARG(&a, dev) = osf1_cvt_dev_to_native(SCARG(uap, dev));
   
           return sys_mknod(l, &a, retval);
   }
   
   int
   osf1_sys_open(struct lwp *l, const struct osf1_sys_open_args *uap, register_t *retval)
   {
           struct sys_open_args a;
           const char *path;
           unsigned long leftovers;
   #ifdef SYSCALL_DEBUG
           char pnbuf[1024];
   
           if (scdebug &&
               copyinstr(SCARG(uap, path), pnbuf, sizeof pnbuf, NULL) == 0)
                   printf("osf1_open: open: %s\n", pnbuf);
   #endif
   
           /* translate flags */
           SCARG(&a, flags) = emul_flags_translate(osf1_open_flags_xtab,
               SCARG(uap, flags), &leftovers);
           if (leftovers != 0)
                   return (EINVAL);
   
           /* copy mode, no translation necessary */
           SCARG(&a, mode) = SCARG(uap, mode);
   
           /* pick appropriate path */
           path = SCARG(uap, path);
           SCARG(&a, path) = path;
   
           return sys_open(l, &a, retval);
   }
   
   int
   osf1_sys_pathconf(struct lwp *l, const struct osf1_sys_pathconf_args *uap, register_t *retval)
   {
           struct sys_pathconf_args a;
           int error;
   
           SCARG(&a, path) = SCARG(uap, path);
   
           error = osf1_cvt_pathconf_name_to_native(SCARG(uap, name),
               &SCARG(&a, name));
   
           if (error == 0)
                   error = sys_pathconf(l, &a, retval);
   
           return (error);
   }
   
   /*
    * Get file status; this version follows links.
    */
   /* ARGSUSED */
   int
   osf1_sys_stat(struct lwp *l, const struct osf1_sys_stat_args *uap, register_t *retval)
   {
           struct stat sb;
           struct osf1_stat osb;
           int error;
   
           error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb);
           if (error)
                   return (error);
           osf1_cvt_stat_from_native(&sb, &osb);
           error = copyout((void *)&osb, (void *)SCARG(uap, ub), sizeof (osb));
           return (error);
   }
   
   /*
    * Get file status; this version follows links.
    */
   /* ARGSUSED */
   int
   osf1_sys_stat2(struct lwp *l, const struct osf1_sys_stat2_args *uap, register_t *retval)
   {
           struct stat sb;
           struct osf1_stat2 osb;
           int error;
   
           error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb);
           if (error)
                   return (error);
           osf1_cvt_stat2_from_native(&sb, &osb);
           error = copyout((void *)&osb, (void *)SCARG(uap, ub), sizeof (osb));
           return (error);
   }
   
   int
   osf1_sys_truncate(struct lwp *l, const struct osf1_sys_truncate_args *uap, register_t *retval)
   {
           struct sys_truncate_args a;
   
           SCARG(&a, path) = SCARG(uap, path);
           SCARG(&a, pad) = 0;
           SCARG(&a, length) = SCARG(uap, length);
   
           return sys_truncate(l, &a, retval);
   }
   
   int
   osf1_sys_utimes(struct lwp *l, const struct osf1_sys_utimes_args *uap, register_t *retval)
   {
           struct osf1_timeval otv;
           struct timeval tv[2], *tvp;
           int error;
   
           if (SCARG(uap, tptr) == NULL)
                   tvp = NULL;
           else {
                   /* get the OSF/1 timeval argument */
                   error = copyin(SCARG(uap, tptr), &otv, sizeof otv);
                   if (error != 0)
                           return error;
   
                   /* fill in and copy out the NetBSD timeval */
                   tv[0].tv_sec = otv.tv_sec;
                   tv[0].tv_usec = otv.tv_usec;
                   /* Set access and modified to the same time */
                   tv[1].tv_sec = otv.tv_sec;
                   tv[1].tv_usec = otv.tv_usec;
                   tvp = tv;
           }
   
           return do_sys_utimes(l, NULL, SCARG(uap, path), FOLLOW,
                               tvp, UIO_SYSSPACE);
   }

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