ibcs2_xenix.c revision 171227 
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 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: head/sys/i386/ibcs2/ibcs2_xenix.c 171227 2007-07-05 05:32:44Z peter $");
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/namei.h>
37#include <sys/sysproto.h>
38#include <sys/clock.h>
39#include <sys/jail.h>
40#include <sys/kernel.h>
41#include <sys/malloc.h>
42#include <sys/filio.h>
43#include <sys/vnode.h>
44#include <sys/syscallsubr.h>
45#include <sys/sysctl.h>
46#include <sys/sysent.h>
47#include <sys/unistd.h>
48
49#include <machine/cpu.h>
50
51#include <i386/ibcs2/ibcs2_types.h>
52#include <i386/ibcs2/ibcs2_unistd.h>
53#include <i386/ibcs2/ibcs2_signal.h>
54#include <i386/ibcs2/ibcs2_util.h>
55#include <i386/ibcs2/ibcs2_proto.h>
56#include <i386/ibcs2/ibcs2_xenix.h>
57#include <i386/ibcs2/ibcs2_xenix_syscall.h>
58
59
60extern struct sysent xenix_sysent[];
61
62int
63ibcs2_xenix(struct thread *td, struct ibcs2_xenix_args *uap)
64{
65	struct trapframe *tf = td->td_frame;
66        struct sysent *callp;
67        u_int code;
68	int error;
69
70	code = (tf->tf_eax & 0xff00) >> 8;
71	callp = &xenix_sysent[code];
72
73	if (code < IBCS2_XENIX_MAXSYSCALL)
74		error = ((*callp->sy_call)(td, (void *)uap));
75	else
76		error = ENOSYS;
77	return (error);
78}
79
80int
81xenix_rdchk(td, uap)
82	struct thread *td;
83	struct xenix_rdchk_args *uap;
84{
85	int data, error;
86
87	DPRINTF(("IBCS2: 'xenix rdchk'\n"));
88
89	error = kern_ioctl(td, uap->fd, FIONREAD, (caddr_t)&data);
90	if (error)
91		return (error);
92	td->td_retval[0] = data ? 1 : 0;
93	return (0);
94}
95
96int
97xenix_chsize(td, uap)
98	struct thread *td;
99	struct xenix_chsize_args *uap;
100{
101	struct ftruncate_args sa;
102
103	DPRINTF(("IBCS2: 'xenix chsize'\n"));
104	sa.fd = uap->fd;
105	sa.length = uap->size;
106	return ftruncate(td, &sa);
107}
108
109
110int
111xenix_ftime(td, uap)
112	struct thread *td;
113	struct xenix_ftime_args *uap;
114{
115	struct timeval tv;
116	struct ibcs2_timeb {
117		unsigned long time __packed;
118		unsigned short millitm;
119		short timezone;
120		short dstflag;
121	} itb;
122
123	DPRINTF(("IBCS2: 'xenix ftime'\n"));
124	microtime(&tv);
125	itb.time = tv.tv_sec;
126	itb.millitm = (tv.tv_usec / 1000);
127	itb.timezone = tz_minuteswest;
128	itb.dstflag = tz_dsttime != DST_NONE;
129
130	return copyout((caddr_t)&itb, (caddr_t)uap->tp,
131		       sizeof(struct ibcs2_timeb));
132}
133
134int
135xenix_nap(struct thread *td, struct xenix_nap_args *uap)
136{
137	long period;
138
139	DPRINTF(("IBCS2: 'xenix nap %d ms'\n", uap->millisec));
140	period = (long)uap->millisec / (1000/hz);
141	if (period)
142		pause("nap", period);
143	return 0;
144}
145
146int
147xenix_utsname(struct thread *td, struct xenix_utsname_args *uap)
148{
149	struct ibcs2_sco_utsname {
150		char sysname[9];
151		char nodename[9];
152		char release[16];
153		char kernelid[20];
154		char machine[9];
155		char bustype[9];
156		char sysserial[10];
157		unsigned short sysorigin;
158		unsigned short sysoem;
159		char numusers[9];
160		unsigned short numcpu;
161	} ibcs2_sco_uname;
162
163	DPRINTF(("IBCS2: 'xenix sco_utsname'\n"));
164	bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname));
165	strncpy(ibcs2_sco_uname.sysname, ostype,
166		sizeof(ibcs2_sco_uname.sysname) - 1);
167	getcredhostname(td->td_ucred, ibcs2_sco_uname.nodename,
168	    sizeof(ibcs2_sco_uname.nodename) - 1);
169	strncpy(ibcs2_sco_uname.release, osrelease,
170		sizeof(ibcs2_sco_uname.release) - 1);
171	strncpy(ibcs2_sco_uname.kernelid, version,
172		sizeof(ibcs2_sco_uname.kernelid) - 1);
173	strncpy(ibcs2_sco_uname.machine, machine,
174		sizeof(ibcs2_sco_uname.machine) - 1);
175	strncpy(ibcs2_sco_uname.bustype, "ISA/EISA",
176		sizeof(ibcs2_sco_uname.bustype) - 1);
177	strncpy(ibcs2_sco_uname.sysserial, "no charge",
178		sizeof(ibcs2_sco_uname.sysserial) - 1);
179	strncpy(ibcs2_sco_uname.numusers, "unlim",
180		sizeof(ibcs2_sco_uname.numusers) - 1);
181	ibcs2_sco_uname.sysorigin = 0xFFFF;
182	ibcs2_sco_uname.sysoem = 0xFFFF;
183	ibcs2_sco_uname.numcpu = 1;
184	return copyout((caddr_t)&ibcs2_sco_uname,
185		       (caddr_t)(void *)(intptr_t)uap->addr,
186		       sizeof(struct ibcs2_sco_utsname));
187}
188
189int
190xenix_scoinfo(struct thread *td, struct xenix_scoinfo_args *uap)
191{
192  /* scoinfo (not documented) */
193  td->td_retval[0] = 0;
194  return 0;
195}
196
197int
198xenix_eaccess(struct thread *td, struct xenix_eaccess_args *uap)
199{
200	char *path;
201        int error, bsd_flags;
202
203	bsd_flags = 0;
204	if (uap->flags & IBCS2_R_OK)
205		bsd_flags |= R_OK;
206	if (uap->flags & IBCS2_W_OK)
207		bsd_flags |= W_OK;
208	if (uap->flags & IBCS2_X_OK)
209		bsd_flags |= X_OK;
210
211	CHECKALTEXIST(td, uap->path, &path);
212	error = kern_eaccess(td, path, UIO_SYSSPACE, bsd_flags);
213	free(path, M_TEMP);
214        return (error);
215}
216