1 /* $NetBSD: kern_info_09.c,v 1.22 2021/09/07 11:43:02 riastradh Exp $ */
2
3 /*
4 * Copyright (c) 1982, 1986, 1991, 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. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93
32 */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: kern_info_09.c,v 1.22 2021/09/07 11:43:02 riastradh Exp $");
36
37 #if defined(_KERNEL_OPT)
38 #include "opt_compat_netbsd.h"
39 #endif
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/filedesc.h>
44 #include <sys/kernel.h>
45 #include <sys/proc.h>
46 #include <sys/syslog.h>
47 #include <sys/unistd.h>
48 #include <uvm/uvm_extern.h>
49 #include <sys/sysctl.h>
50
51 #include <sys/mount.h>
52 #include <sys/syscall.h>
53 #include <sys/syscallvar.h>
54 #include <sys/syscallargs.h>
55
56 #include <compat/common/compat_mod.h>
57
58 static struct syscall_package kern_info_09_syscalls[] = {
59 { SYS_compat_09_ogetdomainname, 0,
60 (sy_call_t *)compat_09_sys_getdomainname },
61 { SYS_compat_09_osetdomainname, 0,
62 (sy_call_t *)compat_09_sys_setdomainname },
63 { SYS_compat_09_ouname, 0, (sy_call_t *)compat_09_sys_uname },
64 { 0, 0, NULL }
65 };
66
67 /* ARGSUSED */
68 int
compat_09_sys_getdomainname(struct lwp * l,const struct compat_09_sys_getdomainname_args * uap,register_t * retval)69 compat_09_sys_getdomainname(struct lwp *l,
70 const struct compat_09_sys_getdomainname_args *uap, register_t *retval)
71 {
72 /* {
73 syscallarg(char *) domainname;
74 syscallarg(int) len;
75 } */
76 int name[2];
77 size_t sz;
78
79 name[0] = CTL_KERN;
80 name[1] = KERN_DOMAINNAME;
81 sz = SCARG(uap,len);
82 return (old_sysctl(&name[0], 2, SCARG(uap, domainname), &sz, 0, 0, l));
83 }
84
85
86 /* ARGSUSED */
87 int
compat_09_sys_setdomainname(struct lwp * l,const struct compat_09_sys_setdomainname_args * uap,register_t * retval)88 compat_09_sys_setdomainname(struct lwp *l,
89 const struct compat_09_sys_setdomainname_args *uap, register_t *retval)
90 {
91 /* {
92 syscallarg(char *) domainname;
93 syscallarg(int) len;
94 } */
95 int name[2];
96
97 name[0] = CTL_KERN;
98 name[1] = KERN_DOMAINNAME;
99 return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, domainname),
100 SCARG(uap, len), l));
101 }
102
103 struct outsname {
104 char sysname[32];
105 char nodename[32];
106 char release[32];
107 char version[32];
108 char machine[32];
109 };
110
111 /* ARGSUSED */
112 int
compat_09_sys_uname(struct lwp * l,const struct compat_09_sys_uname_args * uap,register_t * retval)113 compat_09_sys_uname(struct lwp *l,
114 const struct compat_09_sys_uname_args *uap, register_t *retval)
115 {
116 /* {
117 syscallarg(struct outsname *) name;
118 } */
119 struct outsname outsname;
120 const char *cp;
121 char *dp, *ep;
122
123 memset(&outsname, 0, sizeof(outsname));
124 strncpy(outsname.sysname, ostype, sizeof(outsname.sysname));
125 strncpy(outsname.nodename, hostname, sizeof(outsname.nodename));
126 strncpy(outsname.release, osrelease, sizeof(outsname.release));
127 dp = outsname.version;
128 ep = &outsname.version[sizeof(outsname.version) - 1];
129 for (cp = version; *cp && *cp != '('; cp++)
130 ;
131 for (cp++; *cp && *cp != ')' && dp < ep; cp++)
132 *dp++ = *cp;
133 for (; *cp && *cp != '#'; cp++)
134 ;
135 for (; *cp && *cp != ':' && dp < ep; cp++)
136 *dp++ = *cp;
137 *dp = '\0';
138 strncpy(outsname.machine, MACHINE, sizeof(outsname.machine));
139 return (copyout((void *)&outsname, (void *)SCARG(uap, name),
140 sizeof(struct outsname)));
141 }
142
143 int
kern_info_09_init(void)144 kern_info_09_init(void)
145 {
146
147 return syscall_establish(NULL, kern_info_09_syscalls);
148 }
149
150 int
kern_info_09_fini(void)151 kern_info_09_fini(void)
152 {
153
154 return syscall_disestablish(NULL, kern_info_09_syscalls);
155 }
156