Home | History | Annotate | Line # | Download | only in common 
      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
     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
     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
    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
    144 kern_info_09_init(void)
    145 {
    146 
    147 	return syscall_establish(NULL, kern_info_09_syscalls);
    148 }
    149 
    150 int
    151 kern_info_09_fini(void)
    152 {
    153 
    154 	return syscall_disestablish(NULL, kern_info_09_syscalls);
    155 }
    156