ibcs2_xenix.c revision 26819
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 1.11 1997/05/07 20:05:45 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 = 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 ibcs2_timeb { 123 unsigned long time __attribute__((packed)); 124 unsigned short millitm; 125 short timezone; 126 short dstflag; 127 } itb; 128 129 DPRINTF(("IBCS2: 'xenix ftime'\n")); 130 microtime(&tv); 131 itb.time = tv.tv_sec; 132 itb.millitm = (tv.tv_usec / 1000); 133 itb.timezone = tz.tz_minuteswest; 134 itb.dstflag = tz.tz_dsttime != DST_NONE; 135 136 return copyout((caddr_t)&itb, (caddr_t)SCARG(uap, tp), 137 sizeof(struct ibcs2_timeb)); 138} 139 140int 141xenix_nap(struct proc *p, struct xenix_nap_args *uap, int *retval) 142{ 143 long period; 144 145 DPRINTF(("IBCS2: 'xenix nap %d ms'\n", SCARG(uap, millisec))); 146 period = (long)SCARG(uap, millisec) / (1000/hz); 147 if (period) 148 while (tsleep(&period, PUSER, "nap", period) 149 != EWOULDBLOCK) ; 150 return 0; 151} 152 153int 154xenix_utsname(struct proc *p, struct xenix_utsname_args *uap, int *retval) 155{ 156 struct ibcs2_sco_utsname { 157 char sysname[9]; 158 char nodename[9]; 159 char release[16]; 160 char kernelid[20]; 161 char machine[9]; 162 char bustype[9]; 163 char sysserial[10]; 164 unsigned short sysorigin; 165 unsigned short sysoem; 166 char numusers[9]; 167 unsigned short numcpu; 168 } ibcs2_sco_uname; 169 170 DPRINTF(("IBCS2: 'xenix sco_utsname'\n")); 171 bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname)); 172 strncpy(ibcs2_sco_uname.sysname, ostype, 8); 173 strncpy(ibcs2_sco_uname.nodename, hostname, 8); 174 strncpy(ibcs2_sco_uname.release, osrelease, 15); 175 strncpy(ibcs2_sco_uname.kernelid, version, 19); 176 strncpy(ibcs2_sco_uname.machine, machine, 8); 177 bcopy("ISA/EISA", ibcs2_sco_uname.bustype, 8); 178 bcopy("no charge", ibcs2_sco_uname.sysserial, 9); 179 bcopy("unlim", ibcs2_sco_uname.numusers, 8); 180 ibcs2_sco_uname.sysorigin = 0xFFFF; 181 ibcs2_sco_uname.sysoem = 0xFFFF; 182 ibcs2_sco_uname.numcpu = 1; 183 return copyout((caddr_t)&ibcs2_sco_uname, (caddr_t)uap->addr, 184 sizeof(struct ibcs2_sco_utsname)); 185} 186 187int 188xenix_scoinfo(struct proc *p, struct xenix_scoinfo_args *uap, int *retval) 189{ 190 /* scoinfo (not documented) */ 191 *retval = 0; 192 return 0; 193} 194 195int 196xenix_eaccess(struct proc *p, struct xenix_eaccess_args *uap, int *retval) 197{ 198 struct ucred *cred = p->p_ucred; 199 struct vnode *vp; 200 struct nameidata nd; 201 int error, flags; 202 caddr_t sg = stackgap_init(); 203 204 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 205 206 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, 207 SCARG(uap, path), p); 208 if (error = namei(&nd)) 209 return error; 210 vp = nd.ni_vp; 211 212 /* Flags == 0 means only check for existence. */ 213 if (SCARG(uap, flags)) { 214 flags = 0; 215 if (SCARG(uap, flags) & IBCS2_R_OK) 216 flags |= VREAD; 217 if (SCARG(uap, flags) & IBCS2_W_OK) 218 flags |= VWRITE; 219 if (SCARG(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, p); 223 } 224 vput(vp); 225 return error; 226} 227