sysctl.c revision 1573
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 * 3. All advertising materials mentioning features or use of this software 141573Srgrimes * must display the following acknowledgement: 151573Srgrimes * This product includes software developed by the University of 161573Srgrimes * California, Berkeley and its contributors. 171573Srgrimes * 4. Neither the name of the University nor the names of its contributors 181573Srgrimes * may be used to endorse or promote products derived from this software 191573Srgrimes * without specific prior written permission. 201573Srgrimes * 211573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311573Srgrimes * SUCH DAMAGE. 321573Srgrimes */ 331573Srgrimes 341573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 351573Srgrimesstatic char sccsid[] = "@(#)sysctl.c 8.2 (Berkeley) 1/4/94"; 361573Srgrimes#endif /* LIBC_SCCS and not lint */ 371573Srgrimes 381573Srgrimes#include <sys/param.h> 391573Srgrimes#include <sys/sysctl.h> 401573Srgrimes 411573Srgrimes#include <errno.h> 421573Srgrimes#include <limits.h> 431573Srgrimes#include <paths.h> 441573Srgrimes#include <stdio.h> 451573Srgrimes#include <unistd.h> 461573Srgrimes 471573Srgrimesint 481573Srgrimessysctl(name, namelen, oldp, oldlenp, newp, newlen) 491573Srgrimes int *name; 501573Srgrimes u_int namelen; 511573Srgrimes void *oldp, *newp; 521573Srgrimes size_t *oldlenp, newlen; 531573Srgrimes{ 541573Srgrimes if (name[0] != CTL_USER) 551573Srgrimes return (__sysctl(name, namelen, oldp, oldlenp, newp, newlen)); 561573Srgrimes 571573Srgrimes if (newp != NULL) { 581573Srgrimes errno = EPERM; 591573Srgrimes return (-1); 601573Srgrimes } 611573Srgrimes if (namelen != 2) { 621573Srgrimes errno = EINVAL; 631573Srgrimes return (-1); 641573Srgrimes } 651573Srgrimes 661573Srgrimes switch (name[1]) { 671573Srgrimes case USER_CS_PATH: 681573Srgrimes if (oldp && *oldlenp < sizeof(_PATH_STDPATH)) 691573Srgrimes return (ENOMEM); 701573Srgrimes *oldlenp = sizeof(_PATH_STDPATH); 711573Srgrimes if (oldp != NULL) 721573Srgrimes memmove(oldp, _PATH_STDPATH, sizeof(_PATH_STDPATH)); 731573Srgrimes return (0); 741573Srgrimes } 751573Srgrimes 761573Srgrimes if (oldp && *oldlenp < sizeof(int)) 771573Srgrimes return (ENOMEM); 781573Srgrimes *oldlenp = sizeof(int); 791573Srgrimes if (oldp == NULL) 801573Srgrimes return (0); 811573Srgrimes 821573Srgrimes switch (name[1]) { 831573Srgrimes case USER_BC_BASE_MAX: 841573Srgrimes *(int *)oldp = BC_BASE_MAX; 851573Srgrimes return (0); 861573Srgrimes case USER_BC_DIM_MAX: 871573Srgrimes *(int *)oldp = BC_DIM_MAX; 881573Srgrimes return (0); 891573Srgrimes case USER_BC_SCALE_MAX: 901573Srgrimes *(int *)oldp = BC_SCALE_MAX; 911573Srgrimes return (0); 921573Srgrimes case USER_BC_STRING_MAX: 931573Srgrimes *(int *)oldp = BC_STRING_MAX; 941573Srgrimes return (0); 951573Srgrimes case USER_COLL_WEIGHTS_MAX: 961573Srgrimes *(int *)oldp = COLL_WEIGHTS_MAX; 971573Srgrimes return (0); 981573Srgrimes case USER_EXPR_NEST_MAX: 991573Srgrimes *(int *)oldp = EXPR_NEST_MAX; 1001573Srgrimes return (0); 1011573Srgrimes case USER_LINE_MAX: 1021573Srgrimes *(int *)oldp = LINE_MAX; 1031573Srgrimes return (0); 1041573Srgrimes case USER_RE_DUP_MAX: 1051573Srgrimes *(int *)oldp = RE_DUP_MAX; 1061573Srgrimes return (0); 1071573Srgrimes case USER_POSIX2_VERSION: 1081573Srgrimes *(int *)oldp = _POSIX2_VERSION; 1091573Srgrimes return (0); 1101573Srgrimes case USER_POSIX2_C_BIND: 1111573Srgrimes#ifdef POSIX2_C_BIND 1121573Srgrimes *(int *)oldp = 1; 1131573Srgrimes#else 1141573Srgrimes *(int *)oldp = 0; 1151573Srgrimes#endif 1161573Srgrimes return (0); 1171573Srgrimes case USER_POSIX2_C_DEV: 1181573Srgrimes#ifdef POSIX2_C_DEV 1191573Srgrimes *(int *)oldp = 1; 1201573Srgrimes#else 1211573Srgrimes *(int *)oldp = 0; 1221573Srgrimes#endif 1231573Srgrimes return (0); 1241573Srgrimes case USER_POSIX2_CHAR_TERM: 1251573Srgrimes#ifdef POSIX2_CHAR_TERM 1261573Srgrimes *(int *)oldp = 1; 1271573Srgrimes#else 1281573Srgrimes *(int *)oldp = 0; 1291573Srgrimes#endif 1301573Srgrimes return (0); 1311573Srgrimes case USER_POSIX2_FORT_DEV: 1321573Srgrimes#ifdef POSIX2_FORT_DEV 1331573Srgrimes *(int *)oldp = 1; 1341573Srgrimes#else 1351573Srgrimes *(int *)oldp = 0; 1361573Srgrimes#endif 1371573Srgrimes return (0); 1381573Srgrimes case USER_POSIX2_FORT_RUN: 1391573Srgrimes#ifdef POSIX2_FORT_RUN 1401573Srgrimes *(int *)oldp = 1; 1411573Srgrimes#else 1421573Srgrimes *(int *)oldp = 0; 1431573Srgrimes#endif 1441573Srgrimes return (0); 1451573Srgrimes case USER_POSIX2_LOCALEDEF: 1461573Srgrimes#ifdef POSIX2_LOCALEDEF 1471573Srgrimes *(int *)oldp = 1; 1481573Srgrimes#else 1491573Srgrimes *(int *)oldp = 0; 1501573Srgrimes#endif 1511573Srgrimes return (0); 1521573Srgrimes case USER_POSIX2_SW_DEV: 1531573Srgrimes#ifdef POSIX2_SW_DEV 1541573Srgrimes *(int *)oldp = 1; 1551573Srgrimes#else 1561573Srgrimes *(int *)oldp = 0; 1571573Srgrimes#endif 1581573Srgrimes return (0); 1591573Srgrimes case USER_POSIX2_UPE: 1601573Srgrimes#ifdef POSIX2_UPE 1611573Srgrimes *(int *)oldp = 1; 1621573Srgrimes#else 1631573Srgrimes *(int *)oldp = 0; 1641573Srgrimes#endif 1651573Srgrimes return (0); 1661573Srgrimes case USER_STREAM_MAX: 1671573Srgrimes *(int *)oldp = FOPEN_MAX; 1681573Srgrimes return (0); 1691573Srgrimes case USER_TZNAME_MAX: 1701573Srgrimes *(int *)oldp = NAME_MAX; 1711573Srgrimes return (0); 1721573Srgrimes default: 1731573Srgrimes errno = EINVAL; 1741573Srgrimes return (-1); 1751573Srgrimes } 1761573Srgrimes /* NOTREACHED */ 1771573Srgrimes} 178