Loading...
gen/sysconf.c Libc-262.3.2 /dev/null
--- Libc/Libc-262.3.2/gen/sysconf.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Sean Eric Fagan of Cygnus Support.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-
-#include <sys/param.h>
-#include <sys/sysctl.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-
-#include <errno.h>
-#include <unistd.h>
-
-/*
- * sysconf --
- *	get configurable system variables.
- *
- * XXX
- * POSIX 1003.1 (ISO/IEC 9945-1, 4.8.1.3) states that the variable values
- * not change during the lifetime of the calling process.  This would seem
- * to require that any change to system limits kill all running processes.
- * A workaround might be to cache the values when they are first retrieved
- * and then simply return the cached value on subsequent calls.  This is
- * less useful than returning up-to-date values, however.
- */
-long
-sysconf(name)
-	int name;
-{
-	struct clockinfo clk;
-	struct rlimit rl;
-	size_t len;
-	int mib[2], value;
-
-	len = sizeof(value);
-
-	switch (name) {
-/* 1003.1 */
-	case _SC_ARG_MAX:
-		mib[0] = CTL_KERN;
-		mib[1] = KERN_ARGMAX;
-		break;
-	case _SC_CHILD_MAX:
-		return (getrlimit(RLIMIT_NPROC, &rl) ? -1 : rl.rlim_cur);
-	case _SC_CLK_TCK:
-		return (CLK_TCK);
-	case _SC_JOB_CONTROL:
-		mib[0] = CTL_KERN;
-		mib[1] = KERN_JOB_CONTROL;
-		goto yesno;
-	case _SC_NGROUPS_MAX:
-		mib[0] = CTL_KERN;
-		mib[1] = KERN_NGROUPS;
-		break;
-	case _SC_OPEN_MAX:
-		return (getrlimit(RLIMIT_NOFILE, &rl) ? -1 : rl.rlim_cur);
-	case _SC_STREAM_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_STREAM_MAX;
-		break;
-	case _SC_TZNAME_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_TZNAME_MAX;
-		break;
-	case _SC_SAVED_IDS:
-		mib[0] = CTL_KERN;
-		mib[1] = KERN_SAVED_IDS;
-		goto yesno;
-	case _SC_VERSION:
-		mib[0] = CTL_KERN;
-		mib[1] = KERN_POSIX1;
-		break;
-
-/* 1003.2 */
-	case _SC_BC_BASE_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_BC_BASE_MAX;
-		break;
-	case _SC_BC_DIM_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_BC_DIM_MAX;
-		break;
-	case _SC_BC_SCALE_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_BC_SCALE_MAX;
-		break;
-	case _SC_BC_STRING_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_BC_STRING_MAX;
-		break;
-	case _SC_COLL_WEIGHTS_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_COLL_WEIGHTS_MAX;
-		break;
-	case _SC_EXPR_NEST_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_EXPR_NEST_MAX;
-		break;
-	case _SC_LINE_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_LINE_MAX;
-		break;
-	case _SC_RE_DUP_MAX:
-		mib[0] = CTL_USER;
-		mib[1] = USER_RE_DUP_MAX;
-		break;
-	case _SC_2_VERSION:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_VERSION;
-		break;
-	case _SC_2_C_BIND:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_C_BIND;
-		goto yesno;
-	case _SC_2_C_DEV:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_C_DEV;
-		goto yesno;
-	case _SC_2_CHAR_TERM:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_CHAR_TERM;
-		goto yesno;
-	case _SC_2_FORT_DEV:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_FORT_DEV;
-		goto yesno;
-	case _SC_2_FORT_RUN:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_FORT_RUN;
-		goto yesno;
-	case _SC_2_LOCALEDEF:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_LOCALEDEF;
-		goto yesno;
-	case _SC_2_SW_DEV:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_SW_DEV;
-		goto yesno;
-	case _SC_2_UPE:
-		mib[0] = CTL_USER;
-		mib[1] = USER_POSIX2_UPE;
-yesno:		if (sysctl(mib, 2, &value, &len, NULL, 0) == -1)
-			return (-1);
-		if (value == 0)
-			return (-1);
-		return (value);
-		break;
-	default:
-		errno = EINVAL;
-		return (-1);
-	}
-	return (sysctl(mib, 2, &value, &len, NULL, 0) == -1 ? -1 : value); 
-}