kern_info_43.c revision 1.2
1 /* $NetBSD: kern_info_43.c,v 1.2 1995/09/19 22:01:58 thorpej 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, v, retval) 88 struct proc *p; 89 void *v; 90 register_t *retval; 91 { 92 struct compat_43_gethostname_args /* { 93 syscallarg(char *) hostname; 94 syscallarg(u_int) len; 95 } */ *uap = v; 96 int name; 97 98 name = KERN_HOSTNAME; 99 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &SCARG(uap, len), 100 0, 0)); 101 } 102 103 #define KINFO_PROC (0<<8) 104 #define KINFO_RT (1<<8) 105 #define KINFO_VNODE (2<<8) 106 #define KINFO_FILE (3<<8) 107 #define KINFO_METER (4<<8) 108 #define KINFO_LOADAVG (5<<8) 109 #define KINFO_CLOCKRATE (6<<8) 110 111 int 112 compat_43_getkerninfo(p, v, retval) 113 struct proc *p; 114 void *v; 115 register_t *retval; 116 { 117 register struct compat_43_getkerninfo_args /* { 118 syscallarg(int) op; 119 syscallarg(char *) where; 120 syscallarg(int *) size; 121 syscallarg(int) arg; 122 } */ *uap = v; 123 int error, name[5]; 124 size_t size; 125 126 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 127 (caddr_t)&size, sizeof(size)))) 128 return (error); 129 130 switch (SCARG(uap, op) & 0xff00) { 131 132 case KINFO_RT: 133 name[0] = PF_ROUTE; 134 name[1] = 0; 135 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 136 name[3] = SCARG(uap, op) & 0xff; 137 name[4] = SCARG(uap, arg); 138 error = 139 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); 140 break; 141 142 case KINFO_VNODE: 143 name[0] = KERN_VNODE; 144 error = 145 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 146 break; 147 148 case KINFO_PROC: 149 name[0] = KERN_PROC; 150 name[1] = SCARG(uap, op) & 0xff; 151 name[2] = SCARG(uap, arg); 152 error = 153 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); 154 break; 155 156 case KINFO_FILE: 157 name[0] = KERN_FILE; 158 error = 159 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 160 break; 161 162 case KINFO_METER: 163 name[0] = VM_METER; 164 error = 165 vm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 166 break; 167 168 case KINFO_LOADAVG: 169 name[0] = VM_LOADAVG; 170 error = 171 vm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 172 break; 173 174 case KINFO_CLOCKRATE: 175 name[0] = KERN_CLOCKRATE; 176 error = 177 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 178 break; 179 180 default: 181 return (EOPNOTSUPP); 182 } 183 if (error) 184 return (error); 185 *retval = size; 186 if (SCARG(uap, size)) 187 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 188 sizeof(size)); 189 return (error); 190 } 191 192 193 /* ARGSUSED */ 194 int 195 compat_43_sethostid(p, v, retval) 196 struct proc *p; 197 void *v; 198 register_t *retval; 199 { 200 struct compat_43_sethostid_args /* { 201 syscallarg(int32_t) hostid; 202 } */ *uap = v; 203 int error; 204 205 if (error = suser(p->p_ucred, &p->p_acflag)) 206 return (error); 207 hostid = SCARG(uap, hostid); 208 return (0); 209 } 210 211 212 /* ARGSUSED */ 213 int 214 compat_43_sethostname(p, v, retval) 215 struct proc *p; 216 void *v; 217 register_t *retval; 218 { 219 struct compat_43_sethostname_args *uap = v; 220 int name; 221 int error; 222 223 if (error = suser(p->p_ucred, &p->p_acflag)) 224 return (error); 225 name = KERN_HOSTNAME; 226 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 227 SCARG(uap, len))); 228 } 229
Indexes created Sun Sep 21 20:09:37 GMT 2025