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


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/i386/ibcs2/ibcs2_xenix.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    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/5.3/sys/i386/ibcs2/ibcs2_xenix.c 115684 2003-06-02 06:48:51Z obrien $");
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/namei.h> 
   37 #include <sys/sysproto.h>
   38 #include <sys/jail.h>
   39 #include <sys/kernel.h>
   40 #include <sys/filio.h>
   41 #include <sys/vnode.h>
   42 #include <sys/sysctl.h>
   43 
   44 #include <machine/cpu.h>
   45 
   46 #include <i386/ibcs2/ibcs2_types.h>
   47 #include <i386/ibcs2/ibcs2_unistd.h>
   48 #include <i386/ibcs2/ibcs2_signal.h>
   49 #include <i386/ibcs2/ibcs2_util.h>
   50 #include <i386/ibcs2/ibcs2_proto.h>
   51 #include <i386/ibcs2/ibcs2_xenix.h>
   52 #include <i386/ibcs2/ibcs2_xenix_syscall.h>
   53 
   54 
   55 extern struct sysent xenix_sysent[];
   56 
   57 int
   58 ibcs2_xenix(struct thread *td, struct ibcs2_xenix_args *uap)
   59 {
   60         struct trapframe *tf = td->td_frame;
   61         struct sysent *callp;
   62         u_int code;             
   63 
   64         code = (tf->tf_eax & 0xff00) >> 8;
   65         callp = &xenix_sysent[code];
   66 
   67         if(code < IBCS2_XENIX_MAXSYSCALL)
   68           return((*callp->sy_call)(td, (void *)uap));
   69         else
   70           return ENOSYS;
   71 }
   72 
   73 int
   74 xenix_rdchk(td, uap)
   75         struct thread *td;
   76         struct xenix_rdchk_args *uap;
   77 {
   78         int error;
   79         struct ioctl_args sa;
   80         caddr_t sg = stackgap_init();
   81 
   82         DPRINTF(("IBCS2: 'xenix rdchk'\n"));
   83         sa.fd = uap->fd;
   84         sa.com = FIONREAD;
   85         sa.data = stackgap_alloc(&sg, sizeof(int));
   86         if ((error = ioctl(td, &sa)) != 0)
   87                 return error;
   88         td->td_retval[0] = (*((int*)sa.data)) ? 1 : 0;
   89         return 0;
   90 }
   91 
   92 int
   93 xenix_chsize(td, uap)
   94         struct thread *td;
   95         struct xenix_chsize_args *uap;
   96 {
   97         struct ftruncate_args sa;
   98 
   99         DPRINTF(("IBCS2: 'xenix chsize'\n"));
  100         sa.fd = uap->fd;
  101         sa.pad = 0;
  102         sa.length = uap->size;
  103         return ftruncate(td, &sa);
  104 }
  105 
  106 
  107 int
  108 xenix_ftime(td, uap)
  109         struct thread *td;
  110         struct xenix_ftime_args *uap;
  111 {
  112         struct timeval tv;
  113         struct ibcs2_timeb {
  114                 unsigned long time __packed;
  115                 unsigned short millitm;
  116                 short timezone;
  117                 short dstflag;
  118         } itb;
  119 
  120         DPRINTF(("IBCS2: 'xenix ftime'\n"));
  121         microtime(&tv);
  122         itb.time = tv.tv_sec;
  123         itb.millitm = (tv.tv_usec / 1000);
  124         itb.timezone = tz_minuteswest;
  125         itb.dstflag = tz_dsttime != DST_NONE;
  126 
  127         return copyout((caddr_t)&itb, (caddr_t)uap->tp,
  128                        sizeof(struct ibcs2_timeb));
  129 }
  130 
  131 int
  132 xenix_nap(struct thread *td, struct xenix_nap_args *uap)
  133 {
  134         long period;
  135 
  136         DPRINTF(("IBCS2: 'xenix nap %d ms'\n", uap->millisec));
  137         period = (long)uap->millisec / (1000/hz);
  138         if (period)
  139                 while (tsleep(&period, PPAUSE, "nap", period) 
  140                        != EWOULDBLOCK) ;
  141         return 0;
  142 }
  143 
  144 int
  145 xenix_utsname(struct thread *td, struct xenix_utsname_args *uap)
  146 {
  147         struct ibcs2_sco_utsname {
  148                 char sysname[9];
  149                 char nodename[9];
  150                 char release[16];
  151                 char kernelid[20];
  152                 char machine[9];
  153                 char bustype[9];
  154                 char sysserial[10];
  155                 unsigned short sysorigin;
  156                 unsigned short sysoem;
  157                 char numusers[9];
  158                 unsigned short numcpu;
  159         } ibcs2_sco_uname;
  160 
  161         DPRINTF(("IBCS2: 'xenix sco_utsname'\n"));
  162         bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname));
  163         strncpy(ibcs2_sco_uname.sysname, ostype,
  164                 sizeof(ibcs2_sco_uname.sysname) - 1);
  165         getcredhostname(td->td_ucred, ibcs2_sco_uname.nodename,
  166             sizeof(ibcs2_sco_uname.nodename) - 1);
  167         strncpy(ibcs2_sco_uname.release, osrelease,
  168                 sizeof(ibcs2_sco_uname.release) - 1);
  169         strncpy(ibcs2_sco_uname.kernelid, version,
  170                 sizeof(ibcs2_sco_uname.kernelid) - 1);
  171         strncpy(ibcs2_sco_uname.machine, machine,
  172                 sizeof(ibcs2_sco_uname.machine) - 1);
  173         strncpy(ibcs2_sco_uname.bustype, "ISA/EISA",
  174                 sizeof(ibcs2_sco_uname.bustype) - 1);
  175         strncpy(ibcs2_sco_uname.sysserial, "no charge",
  176                 sizeof(ibcs2_sco_uname.sysserial) - 1);
  177         strncpy(ibcs2_sco_uname.numusers, "unlim",
  178                 sizeof(ibcs2_sco_uname.numusers) - 1);
  179         ibcs2_sco_uname.sysorigin = 0xFFFF;
  180         ibcs2_sco_uname.sysoem = 0xFFFF;
  181         ibcs2_sco_uname.numcpu = 1;
  182         return copyout((caddr_t)&ibcs2_sco_uname,
  183                        (caddr_t)(void *)(intptr_t)uap->addr,
  184                        sizeof(struct ibcs2_sco_utsname));
  185 }
  186 
  187 int
  188 xenix_scoinfo(struct thread *td, struct xenix_scoinfo_args *uap)
  189 {
  190   /* scoinfo (not documented) */
  191   td->td_retval[0] = 0;
  192   return 0;
  193 }
  194 
  195 int     
  196 xenix_eaccess(struct thread *td, struct xenix_eaccess_args *uap)
  197 {
  198         struct ucred *cred = td->td_ucred;
  199         struct vnode *vp;
  200         struct nameidata nd;
  201         int error, flags;
  202         caddr_t sg = stackgap_init();
  203 
  204         CHECKALTEXIST(td, &sg, uap->path);
  205 
  206         NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
  207             uap->path, td);
  208         if ((error = namei(&nd)) != 0)
  209                 return error;
  210         vp = nd.ni_vp;
  211 
  212         /* Flags == 0 means only check for existence. */
  213         if (uap->flags) {
  214                 flags = 0;
  215                 if (uap->flags & IBCS2_R_OK)
  216                         flags |= VREAD;
  217                 if (uap->flags & IBCS2_W_OK)
  218                         flags |= VWRITE;
  219                 if (uap->flags & IBCS2_X_OK)
  220                         flags |= VEXEC;
  221                 if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0)
  222                         error = VOP_ACCESS(vp, flags, cred, td);
  223         }
  224         NDFREE(&nd, NDF_ONLY_PNBUF);
  225         vput(vp);
  226         return error;
  227 }

Cache object: 777a69e825916ebc3e599eed2fbf4775


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.