The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/ibcs2/ibcs2_stat.c

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    1 /*-
    2  * Copyright (c) 1995 Scott Bartram
    3  * Copyright (c) 1995 Steven Wallace
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD: releng/6.1/sys/i386/ibcs2/ibcs2_stat.c 141488 2005-02-07 22:02:18Z jhb $");
   31 
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/namei.h>
   35 #include <sys/file.h>
   36 #include <sys/stat.h>
   37 #include <sys/filedesc.h>
   38 #include <sys/jail.h>
   39 #include <sys/kernel.h>
   40 #include <sys/mount.h>
   41 #include <sys/malloc.h>
   42 #include <sys/vnode.h>
   43 #include <sys/syscallsubr.h>
   44 #include <sys/sysctl.h>
   45 #include <sys/sysproto.h>
   46 
   47 #include <i386/ibcs2/ibcs2_signal.h>
   48 #include <i386/ibcs2/ibcs2_stat.h>
   49 #include <i386/ibcs2/ibcs2_statfs.h>
   50 #include <i386/ibcs2/ibcs2_proto.h>
   51 #include <i386/ibcs2/ibcs2_util.h>
   52 #include <i386/ibcs2/ibcs2_utsname.h>
   53 
   54 
   55 static void bsd_stat2ibcs_stat(struct stat *, struct ibcs2_stat *);
   56 static int  cvt_statfs(struct statfs *, caddr_t, int);
   57 
   58 static void
   59 bsd_stat2ibcs_stat(st, st4)
   60         struct stat *st;
   61         struct ibcs2_stat *st4;
   62 {
   63         bzero(st4, sizeof(*st4));
   64         st4->st_dev  = (ibcs2_dev_t)st->st_dev;
   65         st4->st_ino  = (ibcs2_ino_t)st->st_ino;
   66         st4->st_mode = (ibcs2_mode_t)st->st_mode;
   67         st4->st_nlink= (ibcs2_nlink_t)st->st_nlink;
   68         st4->st_uid  = (ibcs2_uid_t)st->st_uid;
   69         st4->st_gid  = (ibcs2_gid_t)st->st_gid;
   70         st4->st_rdev = (ibcs2_dev_t)st->st_rdev;
   71         if (st->st_size < (quad_t)1 << 32)
   72                 st4->st_size = (ibcs2_off_t)st->st_size;
   73         else
   74                 st4->st_size = -2;
   75         st4->st_atim = (ibcs2_time_t)st->st_atime;
   76         st4->st_mtim = (ibcs2_time_t)st->st_mtime;
   77         st4->st_ctim = (ibcs2_time_t)st->st_ctime;
   78 }
   79 
   80 static int
   81 cvt_statfs(sp, buf, len)
   82         struct statfs *sp;
   83         caddr_t buf;
   84         int len;
   85 {
   86         struct ibcs2_statfs ssfs;
   87 
   88         if (len < 0)
   89                 return (EINVAL);
   90         else if (len > sizeof(ssfs))
   91                 len = sizeof(ssfs);
   92         bzero(&ssfs, sizeof ssfs);
   93         ssfs.f_fstyp = 0;
   94         ssfs.f_bsize = sp->f_bsize;
   95         ssfs.f_frsize = 0;
   96         ssfs.f_blocks = sp->f_blocks;
   97         ssfs.f_bfree = sp->f_bfree;
   98         ssfs.f_files = sp->f_files;
   99         ssfs.f_ffree = sp->f_ffree;
  100         ssfs.f_fname[0] = 0;
  101         ssfs.f_fpack[0] = 0;
  102         return copyout((caddr_t)&ssfs, buf, len);
  103 }       
  104 
  105 int
  106 ibcs2_statfs(td, uap)
  107         struct thread *td;
  108         struct ibcs2_statfs_args *uap;
  109 {
  110         struct statfs sf;
  111         char *path;
  112         int error;
  113 
  114         CHECKALTEXIST(td, uap->path, &path);
  115         error = kern_statfs(td, path, UIO_SYSSPACE, &sf);
  116         free(path, M_TEMP);
  117         if (error)
  118                 return (error);
  119         return cvt_statfs(&sf, (caddr_t)uap->buf, uap->len);
  120 }
  121 
  122 int
  123 ibcs2_fstatfs(td, uap)
  124         struct thread *td;
  125         struct ibcs2_fstatfs_args *uap;
  126 {
  127         struct statfs sf;
  128         int error;
  129 
  130         error = kern_fstatfs(td, uap->fd, &sf);
  131         if (error)
  132                 return (error);
  133         return cvt_statfs(&sf, (caddr_t)uap->buf, uap->len);
  134 }
  135 
  136 int
  137 ibcs2_stat(td, uap)
  138         struct thread *td;
  139         struct ibcs2_stat_args *uap;
  140 {
  141         struct ibcs2_stat ibcs2_st;
  142         struct stat st;
  143         char *path;
  144         int error;
  145 
  146         CHECKALTEXIST(td, uap->path, &path);
  147 
  148         error = kern_stat(td, path, UIO_SYSSPACE, &st);
  149         free(path, M_TEMP);
  150         if (error)
  151                 return (error);
  152         bsd_stat2ibcs_stat(&st, &ibcs2_st);
  153         return copyout((caddr_t)&ibcs2_st, (caddr_t)uap->st,
  154                        ibcs2_stat_len);
  155 }
  156 
  157 int
  158 ibcs2_lstat(td, uap)
  159         struct thread *td;
  160         struct ibcs2_lstat_args *uap;
  161 {
  162         struct ibcs2_stat ibcs2_st;
  163         struct stat st;
  164         char *path;
  165         int error;
  166 
  167         CHECKALTEXIST(td, uap->path, &path);
  168 
  169         error = kern_lstat(td, path, UIO_SYSSPACE, &st);
  170         free(path, M_TEMP);
  171         if (error)
  172                 return (error);
  173         bsd_stat2ibcs_stat(&st, &ibcs2_st);
  174         return copyout((caddr_t)&ibcs2_st, (caddr_t)uap->st,
  175                        ibcs2_stat_len);
  176 }
  177 
  178 int
  179 ibcs2_fstat(td, uap)
  180         struct thread *td;
  181         struct ibcs2_fstat_args *uap;
  182 {
  183         struct ibcs2_stat ibcs2_st;
  184         struct stat st;
  185         int error;
  186 
  187         error = kern_fstat(td, uap->fd, &st);
  188         if (error)
  189                 return (error);
  190         bsd_stat2ibcs_stat(&st, &ibcs2_st);
  191         return copyout((caddr_t)&ibcs2_st, (caddr_t)uap->st,
  192                        ibcs2_stat_len);
  193 }
  194 
  195 int
  196 ibcs2_utssys(td, uap)
  197         struct thread *td;
  198         struct ibcs2_utssys_args *uap;
  199 {
  200         switch (uap->flag) {
  201         case 0:                 /* uname(2) */
  202         {
  203                 char machine_name[9], *p;
  204                 struct ibcs2_utsname sut;
  205                 bzero(&sut, ibcs2_utsname_len);
  206 
  207                 strncpy(sut.sysname,
  208                         IBCS2_UNAME_SYSNAME, sizeof(sut.sysname) - 1);
  209                 strncpy(sut.release,
  210                         IBCS2_UNAME_RELEASE, sizeof(sut.release) - 1);
  211                 strncpy(sut.version,
  212                         IBCS2_UNAME_VERSION, sizeof(sut.version) - 1);
  213                 getcredhostname(td->td_ucred, machine_name,
  214                     sizeof(machine_name) - 1);
  215                 p = index(machine_name, '.');
  216                 if ( p )
  217                         *p = '\0';
  218                 strncpy(sut.nodename, machine_name, sizeof(sut.nodename) - 1);
  219                 strncpy(sut.machine, machine, sizeof(sut.machine) - 1);
  220 
  221                 DPRINTF(("IBCS2 uname: sys=%s rel=%s ver=%s node=%s mach=%s\n",
  222                          sut.sysname, sut.release, sut.version, sut.nodename,
  223                          sut.machine));
  224                 return copyout((caddr_t)&sut, (caddr_t)uap->a1,
  225                                ibcs2_utsname_len);
  226         }
  227 
  228         case 2:                 /* ustat(2) */
  229         {
  230                 return ENOSYS;  /* XXX - TODO */
  231         }
  232 
  233         default:
  234                 return ENOSYS;
  235         }
  236 }

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