11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * Redistribution and use in source and binary forms, with or without 61573Srgrimes * modification, are permitted provided that the following conditions 71573Srgrimes * are met: 81573Srgrimes * 1. Redistributions of source code must retain the above copyright 91573Srgrimes * notice, this list of conditions and the following disclaimer. 101573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111573Srgrimes * notice, this list of conditions and the following disclaimer in the 121573Srgrimes * documentation and/or other materials provided with the distribution. 131573Srgrimes * 4. Neither the name of the University nor the names of its contributors 141573Srgrimes * may be used to endorse or promote products derived from this software 151573Srgrimes * without specific prior written permission. 161573Srgrimes * 171573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271573Srgrimes * SUCH DAMAGE. 281573Srgrimes */ 291573Srgrimes 301573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 311573Srgrimesstatic char sccsid[] = "@(#)sysctl.c 8.2 (Berkeley) 1/4/94"; 321573Srgrimes#endif /* LIBC_SCCS and not lint */ 3392986Sobrien#include <sys/cdefs.h> 3492986Sobrien__FBSDID("$FreeBSD$"); 351573Srgrimes 361573Srgrimes#include <sys/param.h> 371573Srgrimes#include <sys/sysctl.h> 381573Srgrimes 391573Srgrimes#include <errno.h> 401573Srgrimes#include <limits.h> 411573Srgrimes#include <paths.h> 421573Srgrimes#include <stdio.h> 431573Srgrimes#include <unistd.h> 4411659Sphk#include <string.h> 451573Srgrimes 46204170Sedextern int __sysctl(const int *name, u_int namelen, void *oldp, 47204170Sed size_t *oldlenp, const void *newp, size_t newlen); 48111010Snectar 491573Srgrimesint 50204170Sedsysctl(const int *name, u_int namelen, void *oldp, size_t *oldlenp, 51204170Sed const void *newp, size_t newlen) 521573Srgrimes{ 531573Srgrimes if (name[0] != CTL_USER) 541573Srgrimes return (__sysctl(name, namelen, oldp, oldlenp, newp, newlen)); 551573Srgrimes 561573Srgrimes if (newp != NULL) { 571573Srgrimes errno = EPERM; 581573Srgrimes return (-1); 591573Srgrimes } 601573Srgrimes if (namelen != 2) { 611573Srgrimes errno = EINVAL; 621573Srgrimes return (-1); 631573Srgrimes } 641573Srgrimes 651573Srgrimes switch (name[1]) { 661573Srgrimes case USER_CS_PATH: 6742353Sdes if (oldp && *oldlenp < sizeof(_PATH_STDPATH)) { 6842353Sdes errno = ENOMEM; 6942353Sdes return -1; 7042353Sdes } 711573Srgrimes *oldlenp = sizeof(_PATH_STDPATH); 721573Srgrimes if (oldp != NULL) 731573Srgrimes memmove(oldp, _PATH_STDPATH, sizeof(_PATH_STDPATH)); 741573Srgrimes return (0); 751573Srgrimes } 761573Srgrimes 7742353Sdes if (oldp && *oldlenp < sizeof(int)) { 7842353Sdes errno = ENOMEM; 7942353Sdes return (-1); 8042353Sdes } 811573Srgrimes *oldlenp = sizeof(int); 821573Srgrimes if (oldp == NULL) 831573Srgrimes return (0); 841573Srgrimes 851573Srgrimes switch (name[1]) { 861573Srgrimes case USER_BC_BASE_MAX: 871573Srgrimes *(int *)oldp = BC_BASE_MAX; 881573Srgrimes return (0); 891573Srgrimes case USER_BC_DIM_MAX: 901573Srgrimes *(int *)oldp = BC_DIM_MAX; 911573Srgrimes return (0); 921573Srgrimes case USER_BC_SCALE_MAX: 931573Srgrimes *(int *)oldp = BC_SCALE_MAX; 941573Srgrimes return (0); 951573Srgrimes case USER_BC_STRING_MAX: 961573Srgrimes *(int *)oldp = BC_STRING_MAX; 971573Srgrimes return (0); 981573Srgrimes case USER_COLL_WEIGHTS_MAX: 991573Srgrimes *(int *)oldp = COLL_WEIGHTS_MAX; 1001573Srgrimes return (0); 1011573Srgrimes case USER_EXPR_NEST_MAX: 1021573Srgrimes *(int *)oldp = EXPR_NEST_MAX; 1031573Srgrimes return (0); 1041573Srgrimes case USER_LINE_MAX: 1051573Srgrimes *(int *)oldp = LINE_MAX; 1061573Srgrimes return (0); 1071573Srgrimes case USER_RE_DUP_MAX: 1081573Srgrimes *(int *)oldp = RE_DUP_MAX; 1091573Srgrimes return (0); 1101573Srgrimes case USER_POSIX2_VERSION: 1111573Srgrimes *(int *)oldp = _POSIX2_VERSION; 1121573Srgrimes return (0); 1131573Srgrimes case USER_POSIX2_C_BIND: 1141573Srgrimes#ifdef POSIX2_C_BIND 1151573Srgrimes *(int *)oldp = 1; 1161573Srgrimes#else 1171573Srgrimes *(int *)oldp = 0; 1181573Srgrimes#endif 1191573Srgrimes return (0); 1201573Srgrimes case USER_POSIX2_C_DEV: 1211573Srgrimes#ifdef POSIX2_C_DEV 1221573Srgrimes *(int *)oldp = 1; 1231573Srgrimes#else 1241573Srgrimes *(int *)oldp = 0; 1251573Srgrimes#endif 1261573Srgrimes return (0); 1271573Srgrimes case USER_POSIX2_CHAR_TERM: 1281573Srgrimes#ifdef POSIX2_CHAR_TERM 1291573Srgrimes *(int *)oldp = 1; 1301573Srgrimes#else 1311573Srgrimes *(int *)oldp = 0; 1321573Srgrimes#endif 1331573Srgrimes return (0); 1341573Srgrimes case USER_POSIX2_FORT_DEV: 1351573Srgrimes#ifdef POSIX2_FORT_DEV 1361573Srgrimes *(int *)oldp = 1; 1371573Srgrimes#else 1381573Srgrimes *(int *)oldp = 0; 1391573Srgrimes#endif 1401573Srgrimes return (0); 1411573Srgrimes case USER_POSIX2_FORT_RUN: 1421573Srgrimes#ifdef POSIX2_FORT_RUN 1431573Srgrimes *(int *)oldp = 1; 1441573Srgrimes#else 1451573Srgrimes *(int *)oldp = 0; 1461573Srgrimes#endif 1471573Srgrimes return (0); 1481573Srgrimes case USER_POSIX2_LOCALEDEF: 1491573Srgrimes#ifdef POSIX2_LOCALEDEF 1501573Srgrimes *(int *)oldp = 1; 1511573Srgrimes#else 1521573Srgrimes *(int *)oldp = 0; 1531573Srgrimes#endif 1541573Srgrimes return (0); 1551573Srgrimes case USER_POSIX2_SW_DEV: 1561573Srgrimes#ifdef POSIX2_SW_DEV 1571573Srgrimes *(int *)oldp = 1; 1581573Srgrimes#else 1591573Srgrimes *(int *)oldp = 0; 1601573Srgrimes#endif 1611573Srgrimes return (0); 1621573Srgrimes case USER_POSIX2_UPE: 1631573Srgrimes#ifdef POSIX2_UPE 1641573Srgrimes *(int *)oldp = 1; 1651573Srgrimes#else 1661573Srgrimes *(int *)oldp = 0; 1671573Srgrimes#endif 1681573Srgrimes return (0); 1691573Srgrimes case USER_STREAM_MAX: 1701573Srgrimes *(int *)oldp = FOPEN_MAX; 1711573Srgrimes return (0); 1721573Srgrimes case USER_TZNAME_MAX: 1731573Srgrimes *(int *)oldp = NAME_MAX; 1741573Srgrimes return (0); 1751573Srgrimes default: 1761573Srgrimes errno = EINVAL; 1771573Srgrimes return (-1); 1781573Srgrimes } 1791573Srgrimes /* NOTREACHED */ 1801573Srgrimes} 181