kern_info_43.c revision 1.1
1 /* $NetBSD: kern_info_43.c,v 1.1 1995/06/24 20:16:13 christos 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. 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 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/filedesc.h> 41 #include <sys/kernel.h> 42 #include <sys/vnode.h> 43 #include <sys/proc.h> 44 #include <sys/file.h> 45 #include <sys/socket.h> 46 #include <sys/socketvar.h> 47 #include <sys/stat.h> 48 #include <sys/ioctl.h> 49 #include <sys/fcntl.h> 50 #include <sys/malloc.h> 51 #include <sys/syslog.h> 52 #include <sys/unistd.h> 53 #include <sys/resourcevar.h> 54 #include <vm/vm.h> 55 #include <sys/sysctl.h> 56 57 #include <sys/mount.h> 58 #include <sys/syscallargs.h> 59 60 int 61 compat_43_getdtablesize(p, uap, retval) 62 struct proc *p; 63 void *uap; 64 register_t *retval; 65 { 66 67 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 68 return (0); 69 } 70 71 72 /* ARGSUSED */ 73 int 74 compat_43_gethostid(p, uap, retval) 75 struct proc *p; 76 void *uap; 77 register_t *retval; 78 { 79 80 *(int32_t *)retval = hostid; 81 return (0); 82 } 83 84 85 /*ARGSUSED*/ 86 int 87 compat_43_gethostname(p, uap, retval) 88 struct proc *p; 89 struct compat_43_gethostname_args /* { 90 syscallarg(char *) hostname; 91 syscallarg(u_int) len; 92 } */ *uap; 93 register_t *retval; 94 { 95 int name; 96 97 name = KERN_HOSTNAME; 98 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &SCARG(uap, len), 99 0, 0)); 100 } 101 102 #define KINFO_PROC (0<<8) 103 #define KINFO_RT (1<<8) 104 #define KINFO_VNODE (2<<8) 105 #define KINFO_FILE (3<<8) 106 #define KINFO_METER (4<<8) 107 #define KINFO_LOADAVG (5<<8) 108 #define KINFO_CLOCKRATE (6<<8) 109 110 int 111 compat_43_getkerninfo(p, uap, retval) 112 struct proc *p; 113 register struct compat_43_getkerninfo_args /* { 114 syscallarg(int) op; 115 syscallarg(char *) where; 116 syscallarg(int *) size; 117 syscallarg(int) arg; 118 } */ *uap; 119 register_t *retval; 120 { 121 int error, name[5]; 122 size_t size; 123 124 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 125 (caddr_t)&size, sizeof(size)))) 126 return (error); 127 128 switch (SCARG(uap, op) & 0xff00) { 129 130 case KINFO_RT: 131 name[0] = PF_ROUTE; 132 name[1] = 0; 133 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 134 name[3] = SCARG(uap, op) & 0xff; 135 name[4] = SCARG(uap, arg); 136 error = 137 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); 138 break; 139 140 case KINFO_VNODE: 141 name[0] = KERN_VNODE; 142 error = 143 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 144 break; 145 146 case KINFO_PROC: 147 name[0] = KERN_PROC; 148 name[1] = SCARG(uap, op) & 0xff; 149 name[2] = SCARG(uap, arg); 150 error = 151 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); 152 break; 153 154 case KINFO_FILE: 155 name[0] = KERN_FILE; 156 error = 157 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 158 break; 159 160 case KINFO_METER: 161 name[0] = VM_METER; 162 error = 163 vm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 164 break; 165 166 case KINFO_LOADAVG: 167 name[0] = VM_LOADAVG; 168 error = 169 vm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 170 break; 171 172 case KINFO_CLOCKRATE: 173 name[0] = KERN_CLOCKRATE; 174 error = 175 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 176 break; 177 178 default: 179 return (EOPNOTSUPP); 180 } 181 if (error) 182 return (error); 183 *retval = size; 184 if (SCARG(uap, size)) 185 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 186 sizeof(size)); 187 return (error); 188 } 189 190 191 /* ARGSUSED */ 192 int 193 compat_43_sethostid(p, uap, retval) 194 struct proc *p; 195 struct compat_43_sethostid_args /* { 196 syscallarg(int32_t) hostid; 197 } */ *uap; 198 register_t *retval; 199 { 200 int error; 201 202 if (error = suser(p->p_ucred, &p->p_acflag)) 203 return (error); 204 hostid = SCARG(uap, hostid); 205 return (0); 206 } 207 208 209 /* ARGSUSED */ 210 int 211 compat_43_sethostname(p, uap, retval) 212 struct proc *p; 213 register struct compat_43_sethostname_args *uap; 214 register_t *retval; 215 { 216 int name; 217 int error; 218 219 if (error = suser(p->p_ucred, &p->p_acflag)) 220 return (error); 221 name = KERN_HOSTNAME; 222 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 223 SCARG(uap, len))); 224 } 225
Indexes created Mon Sep 22 10:09:38 GMT 2025