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_xenix.c

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    1 /*-
    2  * Copyright (c) 1994 Sean Eric Fagan
    3  * Copyright (c) 1994 Søren Schmidt
    4  * Copyright (c) 1995 Steven Wallace
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer
   12  *    in this position and unchanged.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. The name of the author may not be used to endorse or promote products
   17  *    derived from this software without specific prior written permission
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD: releng/11.0/sys/i386/ibcs2/ibcs2_xenix.c 274476 2014-11-13 18:01:51Z kib $");
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/fcntl.h>
   37 #include <sys/namei.h> 
   38 #include <sys/sysproto.h>
   39 #include <sys/clock.h>
   40 #include <sys/jail.h>
   41 #include <sys/kernel.h>
   42 #include <sys/malloc.h>
   43 #include <sys/filio.h>
   44 #include <sys/vnode.h>
   45 #include <sys/syscallsubr.h>
   46 #include <sys/sysctl.h>
   47 #include <sys/sysent.h>
   48 #include <sys/unistd.h>
   49 
   50 #include <machine/cpu.h>
   51 
   52 #include <i386/ibcs2/ibcs2_types.h>
   53 #include <i386/ibcs2/ibcs2_unistd.h>
   54 #include <i386/ibcs2/ibcs2_signal.h>
   55 #include <i386/ibcs2/ibcs2_util.h>
   56 #include <i386/ibcs2/ibcs2_proto.h>
   57 #include <i386/ibcs2/ibcs2_xenix.h>
   58 #include <i386/ibcs2/ibcs2_xenix_syscall.h>
   59 
   60 
   61 extern struct sysent xenix_sysent[];
   62 
   63 int
   64 ibcs2_xenix(struct thread *td, struct ibcs2_xenix_args *uap)
   65 {
   66         struct trapframe *tf = td->td_frame;
   67         struct sysent *callp;
   68         u_int code;
   69         int error;
   70 
   71         code = (tf->tf_eax & 0xff00) >> 8;
   72         callp = &xenix_sysent[code];
   73 
   74         if (code < IBCS2_XENIX_MAXSYSCALL)
   75                 error = ((*callp->sy_call)(td, (void *)uap));
   76         else
   77                 error = ENOSYS;
   78         return (error);
   79 }
   80 
   81 int
   82 xenix_rdchk(td, uap)
   83         struct thread *td;
   84         struct xenix_rdchk_args *uap;
   85 {
   86         int data, error;
   87 
   88         DPRINTF(("IBCS2: 'xenix rdchk'\n"));
   89         
   90         error = kern_ioctl(td, uap->fd, FIONREAD, (caddr_t)&data);
   91         if (error)
   92                 return (error);
   93         td->td_retval[0] = data ? 1 : 0;
   94         return (0);
   95 }
   96 
   97 int
   98 xenix_chsize(td, uap)
   99         struct thread *td;
  100         struct xenix_chsize_args *uap;
  101 {
  102         struct ftruncate_args sa;
  103 
  104         DPRINTF(("IBCS2: 'xenix chsize'\n"));
  105         sa.fd = uap->fd;
  106         sa.length = uap->size;
  107         return sys_ftruncate(td, &sa);
  108 }
  109 
  110 
  111 int
  112 xenix_ftime(td, uap)
  113         struct thread *td;
  114         struct xenix_ftime_args *uap;
  115 {
  116         struct timeval tv;
  117         struct ibcs2_timeb {
  118                 unsigned long time __packed;
  119                 unsigned short millitm;
  120                 short timezone;
  121                 short dstflag;
  122         } itb;
  123 
  124         DPRINTF(("IBCS2: 'xenix ftime'\n"));
  125         microtime(&tv);
  126         itb.time = tv.tv_sec;
  127         itb.millitm = (tv.tv_usec / 1000);
  128         itb.timezone = tz_minuteswest;
  129         itb.dstflag = tz_dsttime != DST_NONE;
  130 
  131         return copyout((caddr_t)&itb, (caddr_t)uap->tp,
  132                        sizeof(struct ibcs2_timeb));
  133 }
  134 
  135 int
  136 xenix_nap(struct thread *td, struct xenix_nap_args *uap)
  137 {
  138         long period;
  139 
  140         DPRINTF(("IBCS2: 'xenix nap %d ms'\n", uap->millisec));
  141         period = (long)uap->millisec / (1000/hz);
  142         if (period)
  143                 pause("nap", period);
  144         return 0;
  145 }
  146 
  147 int
  148 xenix_utsname(struct thread *td, struct xenix_utsname_args *uap)
  149 {
  150         struct ibcs2_sco_utsname {
  151                 char sysname[9];
  152                 char nodename[9];
  153                 char release[16];
  154                 char kernelid[20];
  155                 char machine[9];
  156                 char bustype[9];
  157                 char sysserial[10];
  158                 unsigned short sysorigin;
  159                 unsigned short sysoem;
  160                 char numusers[9];
  161                 unsigned short numcpu;
  162         } ibcs2_sco_uname;
  163 
  164         DPRINTF(("IBCS2: 'xenix sco_utsname'\n"));
  165         bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname));
  166         strncpy(ibcs2_sco_uname.sysname, ostype,
  167                 sizeof(ibcs2_sco_uname.sysname) - 1);
  168         getcredhostname(td->td_ucred, ibcs2_sco_uname.nodename,
  169             sizeof(ibcs2_sco_uname.nodename) - 1);
  170         strncpy(ibcs2_sco_uname.release, osrelease,
  171                 sizeof(ibcs2_sco_uname.release) - 1);
  172         strncpy(ibcs2_sco_uname.kernelid, version,
  173                 sizeof(ibcs2_sco_uname.kernelid) - 1);
  174         strncpy(ibcs2_sco_uname.machine, machine,
  175                 sizeof(ibcs2_sco_uname.machine) - 1);
  176         strncpy(ibcs2_sco_uname.bustype, "ISA/EISA",
  177                 sizeof(ibcs2_sco_uname.bustype) - 1);
  178         strncpy(ibcs2_sco_uname.sysserial, "no charge",
  179                 sizeof(ibcs2_sco_uname.sysserial) - 1);
  180         strncpy(ibcs2_sco_uname.numusers, "unlim",
  181                 sizeof(ibcs2_sco_uname.numusers) - 1);
  182         ibcs2_sco_uname.sysorigin = 0xFFFF;
  183         ibcs2_sco_uname.sysoem = 0xFFFF;
  184         ibcs2_sco_uname.numcpu = 1;
  185         return copyout((caddr_t)&ibcs2_sco_uname,
  186                        (caddr_t)(void *)(intptr_t)uap->addr,
  187                        sizeof(struct ibcs2_sco_utsname));
  188 }
  189 
  190 int
  191 xenix_scoinfo(struct thread *td, struct xenix_scoinfo_args *uap)
  192 {
  193   /* scoinfo (not documented) */
  194   td->td_retval[0] = 0;
  195   return 0;
  196 }
  197 
  198 int     
  199 xenix_eaccess(struct thread *td, struct xenix_eaccess_args *uap)
  200 {
  201         char *path;
  202         int error, bsd_flags;
  203 
  204         bsd_flags = 0;
  205         if (uap->flags & IBCS2_R_OK)
  206                 bsd_flags |= R_OK;
  207         if (uap->flags & IBCS2_W_OK)
  208                 bsd_flags |= W_OK;
  209         if (uap->flags & IBCS2_X_OK)
  210                 bsd_flags |= X_OK;
  211 
  212         CHECKALTEXIST(td, uap->path, &path);
  213         error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE,
  214             AT_EACCESS, bsd_flags);
  215         free(path, M_TEMP);
  216         return (error);
  217 }

Cache object: 9fd23fd398e60522c97c4200efc0d9dd


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