ibcs2_xenix.c revision 24205
1/*- 2 * Copyright (c) 1994 Sean Eric Fagan 3 * Copyright (c) 1994 S�ren 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 withough 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 * $Id: ibcs2_xenix.c,v 1.9 1997/02/22 09:33:29 peter Exp $ 31 */ 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/namei.h> 36#include <sys/sysproto.h> 37#include <sys/kernel.h> 38#include <sys/exec.h> 39#include <sys/filio.h> 40#include <sys/proc.h> 41#include <sys/vnode.h> 42#include <sys/sysctl.h> 43#include <sys/sysent.h> 44#include <sys/errno.h> 45#include <sys/timeb.h> 46#include <sys/unistd.h> 47 48#include <vm/vm.h> 49#include <machine/cpu.h> 50#include <machine/psl.h> 51#include <machine/reg.h> 52 53#include <i386/ibcs2/ibcs2_types.h> 54#include <i386/ibcs2/ibcs2_unistd.h> 55#include <i386/ibcs2/ibcs2_signal.h> 56#include <i386/ibcs2/ibcs2_util.h> 57#include <i386/ibcs2/ibcs2_proto.h> 58#include <i386/ibcs2/ibcs2_xenix.h> 59#include <i386/ibcs2/ibcs2_xenix_syscall.h> 60 61extern struct sysent xenix_sysent[]; 62 63int 64ibcs2_xenix(struct proc *p, struct ibcs2_xenix_args *uap, int *retval) 65{ 66 struct trapframe *tf = (struct trapframe *)p->p_md.md_regs; 67 struct sysent *callp; 68 u_int code; 69 70 code = (tf->tf_eax & 0xff00) >> 8; 71 callp = &xenix_sysent[code]; 72 73 if(code < IBCS2_XENIX_MAXSYSCALL) 74 return((*callp->sy_call)(p, (void *)uap, retval)); 75 else 76 return ENOSYS; 77} 78 79int 80xenix_rdchk(p, uap, retval) 81 struct proc *p; 82 struct xenix_rdchk_args *uap; 83 int *retval; 84{ 85 int error; 86 struct ioctl_args sa; 87 caddr_t sg = stackgap_init(); 88 89 DPRINTF(("IBCS2: 'xenix rdchk'\n")); 90 SCARG(&sa, fd) = SCARG(uap, fd); 91 SCARG(&sa, com) = FIONREAD; 92 SCARG(&sa, data) = stackgap_alloc(&sg, sizeof(int)); 93 if (error = ioctl(p, &sa, retval)) 94 return error; 95 *retval = (*((int*)SCARG(&sa, data))) ? 1 : 0; 96 return 0; 97} 98 99int 100xenix_chsize(p, uap, retval) 101 struct proc *p; 102 struct xenix_chsize_args *uap; 103 int *retval; 104{ 105 struct ftruncate_args sa; 106 107 DPRINTF(("IBCS2: 'xenix chsize'\n")); 108 SCARG(&sa, fd) = SCARG(uap, fd); 109 SCARG(&sa, pad) = 0; 110 SCARG(&sa, length) = SCARG(uap, size); 111 return ftruncate(p, &sa, retval); 112} 113 114 115int 116xenix_ftime(p, uap, retval) 117 struct proc *p; 118 struct xenix_ftime_args *uap; 119 int *retval; 120{ 121 struct timeval tv; 122 struct timeb 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.tz_minuteswest; 129 itb.dstflag = tz.tz_dsttime != DST_NONE; 130 131 return copyout((caddr_t)&itb, (caddr_t)SCARG(uap, tp), 132 sizeof(struct timeb)); 133} 134 135int 136xenix_nap(struct proc *p, struct xenix_nap_args *uap, int *retval) 137{ 138 long period; 139 140 DPRINTF(("IBCS2: 'xenix nap %d ms'\n", SCARG(uap, millisec))); 141 period = (long)SCARG(uap, millisec) / (1000/hz); 142 if (period) 143 while (tsleep(&period, PUSER, "nap", period) 144 != EWOULDBLOCK) ; 145 return 0; 146} 147 148int 149xenix_utsname(struct proc *p, struct xenix_utsname_args *uap, int *retval) 150{ 151 struct ibcs2_sco_utsname { 152 char sysname[9]; 153 char nodename[9]; 154 char release[16]; 155 char kernelid[20]; 156 char machine[9]; 157 char bustype[9]; 158 char sysserial[10]; 159 unsigned short sysorigin; 160 unsigned short sysoem; 161 char numusers[9]; 162 unsigned short numcpu; 163 } ibcs2_sco_uname; 164 165 DPRINTF(("IBCS2: 'xenix sco_utsname'\n")); 166 bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname)); 167 strncpy(ibcs2_sco_uname.sysname, ostype, 8); 168 strncpy(ibcs2_sco_uname.nodename, hostname, 8); 169 strncpy(ibcs2_sco_uname.release, osrelease, 15); 170 strncpy(ibcs2_sco_uname.kernelid, version, 19); 171 strncpy(ibcs2_sco_uname.machine, machine, 8); 172 bcopy("ISA/EISA", ibcs2_sco_uname.bustype, 8); 173 bcopy("no charge", ibcs2_sco_uname.sysserial, 9); 174 bcopy("unlim", ibcs2_sco_uname.numusers, 8); 175 ibcs2_sco_uname.sysorigin = 0xFFFF; 176 ibcs2_sco_uname.sysoem = 0xFFFF; 177 ibcs2_sco_uname.numcpu = 1; 178 return copyout((caddr_t)&ibcs2_sco_uname, (caddr_t)uap->addr, 179 sizeof(struct ibcs2_sco_utsname)); 180} 181 182int 183xenix_scoinfo(struct proc *p, struct xenix_scoinfo_args *uap, int *retval) 184{ 185 /* scoinfo (not documented) */ 186 *retval = 0; 187 return 0; 188} 189 190int 191xenix_eaccess(struct proc *p, struct xenix_eaccess_args *uap, int *retval) 192{ 193 struct ucred *cred = p->p_ucred; 194 struct vnode *vp; 195 struct nameidata nd; 196 int error, flags; 197 caddr_t sg = stackgap_init(); 198 199 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 200 201 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, 202 SCARG(uap, path), p); 203 if (error = namei(&nd)) 204 return error; 205 vp = nd.ni_vp; 206 207 /* Flags == 0 means only check for existence. */ 208 if (SCARG(uap, flags)) { 209 flags = 0; 210 if (SCARG(uap, flags) & IBCS2_R_OK) 211 flags |= VREAD; 212 if (SCARG(uap, flags) & IBCS2_W_OK) 213 flags |= VWRITE; 214 if (SCARG(uap, flags) & IBCS2_X_OK) 215 flags |= VEXEC; 216 if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0) 217 error = VOP_ACCESS(vp, flags, cred, p); 218 } 219 vput(vp); 220 return error; 221} 222