Move ogethostname(), osethostname(), ogethostid(), osethostid(), and
[dragonfly.git] / sys / emulation / 43bsd / 43bsd_hostinfo.c
CommitLineData
9906751f
DRJ
1/*
2 * 43BSD_HOSTINFO.C - 4.3BSD compatibility host info syscalls
3 *
4 * Copyright (c) 1982, 1986, 1989, 1993
5 * The Regents of the University of California. 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 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $DragonFly: src/sys/emulation/43bsd/43bsd_hostinfo.c,v 1.1 2003/11/14 01:53:54 daver Exp $
36 * from: DragonFly kern/kern_xxx.c,v 1.7
37 *
38 * These syscalls used to live in kern/kern_xxx.c.
39 */
40
41#include "opt_compat.h"
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/sysproto.h>
46#include <sys/kernel.h>
47#include <sys/proc.h>
48#include <sys/sysctl.h>
49
50int
51ogethostname(struct gethostname_args *uap)
52{
53 size_t len;
54 char *hostname;
55 int error, name[2];
56
57 name[0] = CTL_KERN;
58 name[1] = KERN_HOSTNAME;
59 len = MIN(uap->len, MAXHOSTNAMELEN);
60 hostname = malloc(MAXHOSTNAMELEN, M_TEMP, M_WAITOK);
61
62 error = kernel_sysctl(name, 2, hostname, &len, NULL, 0, NULL);
63
64 if (error == 0)
65 error = copyout(hostname, uap->hostname, len);
66
67 free(hostname, M_TEMP);
68 return (error);
69}
70
71int
72osethostname(struct sethostname_args *uap)
73{
74 struct thread *td = curthread;
75 struct proc *p = td->td_proc;
76 size_t len;
77 char *hostname;
78 int name[2];
79 int error;
80
81 KKASSERT(p);
82 name[0] = CTL_KERN;
83 name[1] = KERN_HOSTNAME;
84 error = suser_cred(p->p_ucred, PRISON_ROOT);
85 if (error)
86 return (error);
87 len = MIN(uap->len, MAXHOSTNAMELEN);
88 hostname = malloc(MAXHOSTNAMELEN, M_TEMP, M_WAITOK);
89
90 error = copyin(uap->hostname, hostname, len);
91 if (error) {
92 free(hostname, M_TEMP);
93 return (error);
94 }
95
96 error = kernel_sysctl(name, 2, NULL, 0, hostname, len, NULL);
97
98 free(hostname, M_TEMP);
99 return (error);
100}
101
102int
103ogethostid(struct ogethostid_args *uap)
104{
105 uap->sysmsg_lresult = hostid;
106 return (0);
107}
108
109int
110osethostid(struct osethostid_args *uap)
111{
112 struct thread *td = curthread;
113 int error;
114
115 error = suser(td);
116 if (error)
117 return (error);
118 hostid = uap->hostid;
119 return (0);
120}
121
122int
123oquota(struct oquota_args *uap)
124{
125 return (ENOSYS);
126}