ibcs2_xenix.c revision 54655
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 * $FreeBSD: head/sys/i386/ibcs2/ibcs2_xenix.c 54655 1999-12-15 23:02:35Z eivind $ 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/filio.h> 39#include <sys/vnode.h> 40#include <sys/sysctl.h> 41 42#include <machine/cpu.h> 43 44#include <i386/ibcs2/ibcs2_types.h> 45#include <i386/ibcs2/ibcs2_unistd.h> 46#include <i386/ibcs2/ibcs2_signal.h> 47#include <i386/ibcs2/ibcs2_util.h> 48#include <i386/ibcs2/ibcs2_proto.h> 49#include <i386/ibcs2/ibcs2_xenix.h> 50#include <i386/ibcs2/ibcs2_xenix_syscall.h> 51 52#include <vm/vm_zone.h> 53 54extern struct sysent xenix_sysent[]; 55 56int 57ibcs2_xenix(struct proc *p, struct ibcs2_xenix_args *uap) 58{ 59 struct trapframe *tf = p->p_md.md_regs; 60 struct sysent *callp; 61 u_int code; 62 63 code = (tf->tf_eax & 0xff00) >> 8; 64 callp = &xenix_sysent[code]; 65 66 if(code < IBCS2_XENIX_MAXSYSCALL) 67 return((*callp->sy_call)(p, (void *)uap)); 68 else 69 return ENOSYS; 70} 71 72int 73xenix_rdchk(p, uap) 74 struct proc *p; 75 struct xenix_rdchk_args *uap; 76{ 77 int error; 78 struct ioctl_args sa; 79 caddr_t sg = stackgap_init(); 80 81 DPRINTF(("IBCS2: 'xenix rdchk'\n")); 82 SCARG(&sa, fd) = SCARG(uap, fd); 83 SCARG(&sa, com) = FIONREAD; 84 SCARG(&sa, data) = stackgap_alloc(&sg, sizeof(int)); 85 if ((error = ioctl(p, &sa)) != 0) 86 return error; 87 p->p_retval[0] = (*((int*)SCARG(&sa, data))) ? 1 : 0; 88 return 0; 89} 90 91int 92xenix_chsize(p, uap) 93 struct proc *p; 94 struct xenix_chsize_args *uap; 95{ 96 struct ftruncate_args sa; 97 98 DPRINTF(("IBCS2: 'xenix chsize'\n")); 99 SCARG(&sa, fd) = SCARG(uap, fd); 100 SCARG(&sa, pad) = 0; 101 SCARG(&sa, length) = SCARG(uap, size); 102 return ftruncate(p, &sa); 103} 104 105 106int 107xenix_ftime(p, uap) 108 struct proc *p; 109 struct xenix_ftime_args *uap; 110{ 111 struct timeval tv; 112 struct ibcs2_timeb { 113 unsigned long time __attribute__((packed)); 114 unsigned short millitm; 115 short timezone; 116 short dstflag; 117 } itb; 118 119 DPRINTF(("IBCS2: 'xenix ftime'\n")); 120 microtime(&tv); 121 itb.time = tv.tv_sec; 122 itb.millitm = (tv.tv_usec / 1000); 123 itb.timezone = tz.tz_minuteswest; 124 itb.dstflag = tz.tz_dsttime != DST_NONE; 125 126 return copyout((caddr_t)&itb, (caddr_t)SCARG(uap, tp), 127 sizeof(struct ibcs2_timeb)); 128} 129 130int 131xenix_nap(struct proc *p, struct xenix_nap_args *uap) 132{ 133 long period; 134 135 DPRINTF(("IBCS2: 'xenix nap %d ms'\n", SCARG(uap, millisec))); 136 period = (long)SCARG(uap, millisec) / (1000/hz); 137 if (period) 138 while (tsleep(&period, PPAUSE, "nap", period) 139 != EWOULDBLOCK) ; 140 return 0; 141} 142 143int 144xenix_utsname(struct proc *p, struct xenix_utsname_args *uap) 145{ 146 struct ibcs2_sco_utsname { 147 char sysname[9]; 148 char nodename[9]; 149 char release[16]; 150 char kernelid[20]; 151 char machine[9]; 152 char bustype[9]; 153 char sysserial[10]; 154 unsigned short sysorigin; 155 unsigned short sysoem; 156 char numusers[9]; 157 unsigned short numcpu; 158 } ibcs2_sco_uname; 159 160 DPRINTF(("IBCS2: 'xenix sco_utsname'\n")); 161 bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname)); 162 strncpy(ibcs2_sco_uname.sysname, ostype, 163 sizeof(ibcs2_sco_uname.sysname) - 1); 164 strncpy(ibcs2_sco_uname.nodename, hostname, 165 sizeof(ibcs2_sco_uname.nodename) - 1); 166 strncpy(ibcs2_sco_uname.release, osrelease, 167 sizeof(ibcs2_sco_uname.release) - 1); 168 strncpy(ibcs2_sco_uname.kernelid, version, 169 sizeof(ibcs2_sco_uname.kernelid) - 1); 170 strncpy(ibcs2_sco_uname.machine, machine, 171 sizeof(ibcs2_sco_uname.machine) - 1); 172 strncpy(ibcs2_sco_uname.bustype, "ISA/EISA", 173 sizeof(ibcs2_sco_uname.bustype) - 1); 174 strncpy(ibcs2_sco_uname.sysserial, "no charge", 175 sizeof(ibcs2_sco_uname.sysserial) - 1); 176 strncpy(ibcs2_sco_uname.numusers, "unlim", 177 sizeof(ibcs2_sco_uname.numusers) - 1); 178 ibcs2_sco_uname.sysorigin = 0xFFFF; 179 ibcs2_sco_uname.sysoem = 0xFFFF; 180 ibcs2_sco_uname.numcpu = 1; 181 return copyout((caddr_t)&ibcs2_sco_uname, 182 (caddr_t)(void *)(intptr_t)uap->addr, 183 sizeof(struct ibcs2_sco_utsname)); 184} 185 186int 187xenix_scoinfo(struct proc *p, struct xenix_scoinfo_args *uap) 188{ 189 /* scoinfo (not documented) */ 190 p->p_retval[0] = 0; 191 return 0; 192} 193 194int 195xenix_eaccess(struct proc *p, struct xenix_eaccess_args *uap) 196{ 197 struct ucred *cred = p->p_ucred; 198 struct vnode *vp; 199 struct nameidata nd; 200 int error, flags; 201 caddr_t sg = stackgap_init(); 202 203 CHECKALTEXIST(p, &sg, SCARG(uap, path)); 204 205 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, 206 SCARG(uap, path), p); 207 if ((error = namei(&nd)) != 0) 208 return error; 209 vp = nd.ni_vp; 210 211 /* Flags == 0 means only check for existence. */ 212 if (SCARG(uap, flags)) { 213 flags = 0; 214 if (SCARG(uap, flags) & IBCS2_R_OK) 215 flags |= VREAD; 216 if (SCARG(uap, flags) & IBCS2_W_OK) 217 flags |= VWRITE; 218 if (SCARG(uap, flags) & IBCS2_X_OK) 219 flags |= VEXEC; 220 if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0) 221 error = VOP_ACCESS(vp, flags, cred, p); 222 } 223 NDFREE(&nd, NDF_ONLY_PNBUF); 224 vput(vp); 225 return error; 226} 227