ibcs2_other.c revision 274476 
1/*-
2 * Copyright (c) 1995 Steven Wallace
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. The name of the author may not be used to endorse or promote products
11 *    derived from this software without specific prior written permission
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include <sys/cdefs.h>
26__FBSDID("$FreeBSD: head/sys/i386/ibcs2/ibcs2_other.c 274476 2014-11-13 18:01:51Z kib $");
27
28/*
29 * IBCS2 compatibility module.
30 */
31
32#include "opt_spx_hack.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/fcntl.h>
37#include <sys/lock.h>
38#include <sys/mutex.h>
39#include <sys/syscallsubr.h>
40#include <sys/sysproto.h>
41#include <sys/un.h>
42
43#include <i386/ibcs2/ibcs2_types.h>
44#include <i386/ibcs2/ibcs2_signal.h>
45#include <i386/ibcs2/ibcs2_util.h>
46#include <i386/ibcs2/ibcs2_proto.h>
47
48#define IBCS2_SECURE_GETLUID 1
49#define IBCS2_SECURE_SETLUID 2
50
51int
52ibcs2_secure(struct thread *td, struct ibcs2_secure_args *uap)
53{
54	switch (uap->cmd) {
55
56	case IBCS2_SECURE_GETLUID:		/* get login uid */
57		td->td_retval[0] = td->td_ucred->cr_uid;
58		return 0;
59
60	case IBCS2_SECURE_SETLUID:		/* set login uid */
61		return EPERM;
62
63	default:
64		printf("IBCS2: 'secure' cmd=%d not implemented\n", uap->cmd);
65	}
66
67	return EINVAL;
68}
69
70int
71ibcs2_lseek(struct thread *td, register struct ibcs2_lseek_args *uap)
72{
73	struct lseek_args largs;
74	int error;
75
76	largs.fd = uap->fd;
77	largs.offset = uap->offset;
78	largs.whence = uap->whence;
79	error = sys_lseek(td, &largs);
80	return (error);
81}
82
83#ifdef SPX_HACK
84#include <sys/socket.h>
85#include <sys/un.h>
86
87int
88spx_open(struct thread *td)
89{
90	struct socket_args sock;
91	struct sockaddr_un sun;
92	int fd, error;
93
94	/* obtain a socket. */
95	DPRINTF(("SPX: open socket\n"));
96	sock.domain = AF_UNIX;
97	sock.type = SOCK_STREAM;
98	sock.protocol = 0;
99	error = sys_socket(td, &sock);
100	if (error)
101		return error;
102	fd = td->td_retval[0];
103
104	/* connect the socket to standard X socket */
105	DPRINTF(("SPX: connect to /tmp/X11-unix/X0\n"));
106	sun.sun_family = AF_UNIX;
107	strcpy(sun.sun_path, "/tmp/.X11-unix/X0");
108	sun.sun_len = sizeof(struct sockaddr_un) - sizeof(sun.sun_path) +
109	    strlen(sun.sun_path) + 1;
110
111	error = kern_connectat(td, AT_FDCWD, fd, (struct sockaddr *)&sun);
112	if (error) {
113		kern_close(td, fd);
114		return error;
115	}
116	td->td_retval[0] = fd;
117	return 0;
118}
119#endif /* SPX_HACK */
120