ibcs2_other.c revision 21673 
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 * $FreeBSD: head/sys/i386/ibcs2/ibcs2_other.c 21673 1997-01-14 07:20:47Z jkh $
25 */
26
27/*
28 * IBCS2 compatibility module.
29 */
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/proc.h>
34#include <sys/sysproto.h>
35#include <sys/kernel.h>
36
37#include <i386/ibcs2/ibcs2_types.h>
38#include <i386/ibcs2/ibcs2_signal.h>
39#include <i386/ibcs2/ibcs2_util.h>
40#include <i386/ibcs2/ibcs2_proto.h>
41
42#define IBCS2_SECURE_GETLUID 1
43#define IBCS2_SECURE_SETLUID 2
44
45int
46ibcs2_secure(struct proc *p, struct ibcs2_secure_args *uap, int *retval)
47{
48	switch (uap->cmd) {
49
50	case IBCS2_SECURE_GETLUID:		/* get login uid */
51		*retval = p->p_ucred->cr_uid;
52		return 0;
53
54	case IBCS2_SECURE_SETLUID:		/* set login uid */
55		return EPERM;
56
57	default:
58		printf("IBCS2: 'secure' cmd=%d not implemented\n", uap->cmd);
59	}
60
61	return EINVAL;
62}
63
64int
65ibcs2_lseek(struct proc *p, register struct ibcs2_lseek_args *uap, int *retval)
66{
67	struct lseek_args largs;
68	off_t lret;
69	int error;
70
71	largs.fd = uap->fd;
72	largs.offset = uap->offset;
73	largs.whence = uap->whence;
74	error = lseek(p, &largs, (int *)&lret);
75	*(long *)retval = lret;
76	return (error);
77}
78
79#ifdef SPX_HACK
80#include <sys/socket.h>
81#include <sys/un.h>
82
83int
84spx_open(struct proc *p, void *uap, int *retval)
85{
86	struct socket_args sock;
87	struct connect_args conn;
88	struct sockaddr_un *Xaddr;
89	caddr_t name;
90	int fd, error;
91	caddr_t sg = stackgap_init();
92
93	/* obtain a socket. */
94	DPRINTF(("SPX: open socket\n"));
95	sock.domain = AF_UNIX;
96	sock.type = SOCK_STREAM;
97	sock.protocol = 0;
98	error = socket(p, &sock, retval);
99	if (error)
100		return error;
101
102	/* connect the socket to standard X socket */
103	DPRINTF(("SPX: connect to /tmp/X11-unix/X0\n"));
104	Xaddr = stackgap_alloc(&sg, sizeof(struct sockaddr_un));
105	Xaddr->sun_family = AF_UNIX;
106	Xaddr->sun_len = sizeof(struct sockaddr_un) - sizeof(Xaddr->sun_path) +
107	  strlen(Xaddr->sun_path) + 1;
108	copyout("/tmp/.X11-unix/X0", Xaddr->sun_path, 18);
109
110	conn.s = fd = *retval;
111	conn.name = (caddr_t)Xaddr;
112	conn.namelen = sizeof(struct sockaddr_un);
113	error = connect(p, &conn, retval);
114	if (error) {
115		struct close_args cl;
116		cl.fd = fd;
117		close(p, &cl, retval);
118		return error;
119	}
120	*retval = fd;
121	return 0;
122}
123#endif /* SPX_HACK */
124