ibcs2_xenix.c revision 21673
1273929Sjmmv/*- 2240116Smarcel * Copyright (c) 1994 Sean Eric Fagan 3240116Smarcel * Copyright (c) 1994 S�ren Schmidt 4240116Smarcel * Copyright (c) 1995 Steven Wallace 5240116Smarcel * All rights reserved. 6240116Smarcel * 7240116Smarcel * Redistribution and use in source and binary forms, with or without 8240116Smarcel * modification, are permitted provided that the following conditions 9240116Smarcel * are met: 10240116Smarcel * 1. Redistributions of source code must retain the above copyright 11240116Smarcel * notice, this list of conditions and the following disclaimer 12240116Smarcel * in this position and unchanged. 13240116Smarcel * 2. Redistributions in binary form must reproduce the above copyright 14240116Smarcel * notice, this list of conditions and the following disclaimer in the 15240116Smarcel * documentation and/or other materials provided with the distribution. 16240116Smarcel * 3. The name of the author may not be used to endorse or promote products 17240116Smarcel * derived from this software withough specific prior written permission 18240116Smarcel * 19240116Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20240116Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21240116Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22240116Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23240116Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24273929Sjmmv * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25240116Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26273929Sjmmv * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27273929Sjmmv * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28240116Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29240116Smarcel * 30240116Smarcel * $FreeBSD: head/sys/i386/ibcs2/ibcs2_xenix.c 21673 1997-01-14 07:20:47Z jkh $ 31240116Smarcel */ 32240116Smarcel 33273929Sjmmv#include <sys/param.h> 34273929Sjmmv#include <sys/systm.h> 35240116Smarcel#include <sys/namei.h> 36240116Smarcel#include <sys/sysproto.h> 37273929Sjmmv#include <sys/kernel.h> 38273929Sjmmv#include <sys/exec.h> 39273929Sjmmv#include <sys/ioctl.h> 40273929Sjmmv#include <sys/proc.h> 41240116Smarcel#include <sys/vnode.h> 42240116Smarcel#include <sys/sysctl.h> 43261897Sjmmv#include <sys/sysent.h> 44261897Sjmmv#include <sys/errno.h> 45240116Smarcel#include <sys/timeb.h> 46240116Smarcel#include <sys/unistd.h> 47240116Smarcel 48240116Smarcel#include <vm/vm.h> 49240116Smarcel#include <machine/cpu.h> 50273929Sjmmv#include <machine/psl.h> 51273929Sjmmv#include <machine/reg.h> 52240116Smarcel 53240116Smarcel#include <i386/ibcs2/ibcs2_types.h> 54240116Smarcel#include <i386/ibcs2/ibcs2_unistd.h> 55240116Smarcel#include <i386/ibcs2/ibcs2_signal.h> 56240116Smarcel#include <i386/ibcs2/ibcs2_util.h> 57240116Smarcel#include <i386/ibcs2/ibcs2_proto.h> 58240116Smarcel#include <i386/ibcs2/ibcs2_xenix.h> 59240116Smarcel#include <i386/ibcs2/ibcs2_xenix_syscall.h> 60240116Smarcel 61240116Smarcelextern struct sysent xenix_sysent[]; 62261897Sjmmv 63240116Smarcelint 64240116Smarcelibcs2_xenix(struct proc *p, struct ibcs2_xenix_args *uap, int *retval) 65261897Sjmmv{ 66261897Sjmmv struct trapframe *tf = (struct trapframe *)p->p_md.md_regs; 67240116Smarcel struct sysent *callp; 68240116Smarcel u_int code; 69240116Smarcel 70240116Smarcel code = (tf->tf_eax & 0xff00) >> 8; 71240116Smarcel callp = &xenix_sysent[code]; 72261897Sjmmv 73240116Smarcel if(code < IBCS2_XENIX_MAXSYSCALL) 74261897Sjmmv return((*callp->sy_call)(p, (void *)uap, retval)); 75240116Smarcel else 76240116Smarcel return ENOSYS; 77240116Smarcel} 78240116Smarcel 79240116Smarcelint 80240116Smarcelxenix_rdchk(p, uap, retval) 81240116Smarcel struct proc *p; 82240116Smarcel struct xenix_rdchk_args *uap; 83240116Smarcel int *retval; 84240116Smarcel{ 85240116Smarcel int error; 86240116Smarcel struct ioctl_args sa; 87240116Smarcel caddr_t sg = stackgap_init(); 88240116Smarcel 89240116Smarcel DPRINTF(("IBCS2: 'xenix rdchk'\n")); 90240116Smarcel SCARG(&sa, fd) = SCARG(uap, fd); 91261897Sjmmv SCARG(&sa, com) = FIONREAD; 92261897Sjmmv SCARG(&sa, data) = stackgap_alloc(&sg, sizeof(int)); 93240116Smarcel if (error = ioctl(p, &sa, retval)) 94240116Smarcel return error; 95240116Smarcel *retval = (*((int*)SCARG(&sa, data))) ? 1 : 0; 96240116Smarcel return 0; 97240116Smarcel} 98240116Smarcel 99240116Smarcelint 100240116Smarcelxenix_chsize(p, uap, retval) 101240116Smarcel struct proc *p; 102240116Smarcel struct xenix_chsize_args *uap; 103240116Smarcel int *retval; 104240116Smarcel{ 105240116Smarcel struct ftruncate_args sa; 106240116Smarcel 107240116Smarcel DPRINTF(("IBCS2: 'xenix chsize'\n")); 108240116Smarcel SCARG(&sa, fd) = SCARG(uap, fd); 109240116Smarcel SCARG(&sa, pad) = 0; 110240116Smarcel SCARG(&sa, length) = SCARG(uap, size); 111240116Smarcel return ftruncate(p, &sa, retval); 112240116Smarcel} 113240116Smarcel 114240116Smarcel 115240116Smarcelint 116240116Smarcelxenix_ftime(p, uap, retval) 117240116Smarcel struct proc *p; 118240116Smarcel struct xenix_ftime_args *uap; 119240116Smarcel int *retval; 120240116Smarcel{ 121240116Smarcel struct timeval tv; 122240116Smarcel struct timeb itb; 123240116Smarcel 124240116Smarcel DPRINTF(("IBCS2: 'xenix ftime'\n")); 125240116Smarcel microtime(&tv); 126240116Smarcel itb.time = tv.tv_sec; 127240116Smarcel itb.millitm = (tv.tv_usec / 1000); 128240116Smarcel itb.timezone = tz.tz_minuteswest; 129240116Smarcel itb.dstflag = tz.tz_dsttime != DST_NONE; 130240116Smarcel 131240116Smarcel return copyout((caddr_t)&itb, (caddr_t)SCARG(uap, tp), 132240116Smarcel sizeof(struct timeb)); 133240116Smarcel} 134240116Smarcel 135240116Smarcelint 136240116Smarcelxenix_nap(struct proc *p, struct xenix_nap_args *uap, int *retval) 137240116Smarcel{ 138240116Smarcel long period; 139240116Smarcel 140240116Smarcel DPRINTF(("IBCS2: 'xenix nap %d ms'\n", SCARG(uap, millisec))); 141240116Smarcel period = (long)SCARG(uap, millisec) / (1000/hz); 142240116Smarcel if (period) 143240116Smarcel while (tsleep(&period, PUSER, "nap", period) 144240116Smarcel != EWOULDBLOCK) ; 145240116Smarcel return 0; 146240116Smarcel} 147240116Smarcel 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