Loading...
--- Libc/Libc-1725.40.4/gen/FreeBSD/sysconf.c
+++ /dev/null
@@ -1,707 +0,0 @@
-/*-
- * 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.
- * 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)sysconf.c 8.2 (Berkeley) 3/20/94";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: lib/libc/gen/sysconf.c r168718 $");
-
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/sysctl.h>
-#include <sys/resource.h>
-#include <sys/socket.h>
-#include <sys/aio.h>
-#include <sys/semaphore.h>
-
-#include <errno.h>
-#include <limits.h>
-#include <paths.h>
-#include <pthread.h> /* we just need the limits */
-#include <time.h>
-#include <unistd.h>
-
-#include "../../stdlib/FreeBSD/atexit.h"
-#include "../../stdtime/FreeBSD/tzfile.h"
-
-#define _PATH_ZONEINFO TZDIR /* from tzfile.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(int name)
-{
- struct rlimit rl;
- quad_t qdvalue; /* for kern.sysv.shmmin */
- size_t len;
- int mib[3], sverrno, value;
- long lvalue, defaultresult;
- const char *path;
-
- defaultresult = -1;
-
- switch (name) {
- case _SC_ARG_MAX:
- mib[0] = CTL_KERN;
- mib[1] = KERN_ARGMAX;
- break;
- case _SC_CHILD_MAX:
- if (getrlimit(RLIMIT_NPROC, &rl) != 0)
- return (-1);
- if (rl.rlim_cur == RLIM_INFINITY)
- return (-1);
- if (rl.rlim_cur > LONG_MAX) {
- errno = EOVERFLOW;
- return (-1);
- }
- return ((long)rl.rlim_cur);
- case _SC_CLK_TCK:
- return (CLK_TCK);
- case _SC_NGROUPS_MAX:
- mib[0] = CTL_KERN;
- mib[1] = KERN_NGROUPS;
- break;
- case _SC_OPEN_MAX:
- case _SC_STREAM_MAX: /* assume fds run out before memory does */
- if (getrlimit(RLIMIT_NOFILE, &rl) != 0)
- return (-1);
-#if __LP64__
- /*
- * In 64 bit world, sysconf is able to correctly represent
- * rlim_t values (8 bytes).
- */
- if (rl.rlim_cur > RLIM_INFINITY)
- return (-1);
- if (rl.rlim_cur > LONG_MAX) {
- errno = EOVERFLOW;
- return (-1);
- }
- lvalue = rl.rlim_cur;
-#else
- /*
- * In 32 bit world (watches), sysconf falls back to the
- * old behavior: use (int) OPEN_MAX as max limit. Ideally
- * we would use maxfilesperproc as max limit, which is a
- * system value adjusted by the kernel based on available
- * RAM size. This value defaults to OPEN_MAX for systems
- * with less than 8G of RAM. So we use OPEN_MAX (defined
- * in sys/syslimits.h) as max limit here in case
- * applications with strict sandbox rules prevent libc
- * from reading maxfilesperproc via sysctl.
- */
- if (rl.rlim_cur > OPEN_MAX)
- lvalue = OPEN_MAX;
- else
- lvalue = (long)rl.rlim_cur;
-#endif
- return lvalue;
- case _SC_JOB_CONTROL:
- return (_POSIX_JOB_CONTROL);
- case _SC_SAVED_IDS:
- /* XXX - must be 1 */
- mib[0] = CTL_KERN;
- mib[1] = KERN_SAVED_IDS;
- goto yesno;
- case _SC_VERSION:
- mib[0] = CTL_KERN;
- mib[1] = KERN_POSIX1;
- break;
- case _SC_BC_BASE_MAX:
- return (BC_BASE_MAX);
- case _SC_BC_DIM_MAX:
- return (BC_DIM_MAX);
- case _SC_BC_SCALE_MAX:
- return (BC_SCALE_MAX);
- case _SC_BC_STRING_MAX:
- return (BC_STRING_MAX);
- case _SC_COLL_WEIGHTS_MAX:
- return (COLL_WEIGHTS_MAX);
- case _SC_EXPR_NEST_MAX:
- return (EXPR_NEST_MAX);
- case _SC_LINE_MAX:
- return (LINE_MAX);
- case _SC_RE_DUP_MAX:
- return (RE_DUP_MAX);
- case _SC_2_VERSION:
- /*
- * This is something of a lie, but it would be silly at
- * this point to try to deduce this from the contents
- * of the filesystem.
- */
- return (_POSIX2_VERSION);
- case _SC_2_C_BIND:
- return (_POSIX2_C_BIND);
- case _SC_2_C_DEV:
- return (_POSIX2_C_DEV);
- case _SC_2_CHAR_TERM:
- return (_POSIX2_CHAR_TERM);
- case _SC_2_FORT_DEV:
- return (_POSIX2_FORT_DEV);
- case _SC_2_FORT_RUN:
- return (_POSIX2_FORT_RUN);
- case _SC_2_LOCALEDEF:
- return (_POSIX2_LOCALEDEF);
- case _SC_2_SW_DEV:
- return (_POSIX2_SW_DEV);
- case _SC_2_UPE:
- return (_POSIX2_UPE);
- case _SC_TZNAME_MAX:
- path = _PATH_ZONEINFO;
-do_NAME_MAX:
- sverrno = errno;
- errno = 0;
- lvalue = pathconf(path, _PC_NAME_MAX);
- if (lvalue == -1 && errno != 0)
- return (-1);
- errno = sverrno;
- return (lvalue);
-
- case _SC_ASYNCHRONOUS_IO:
-#if _POSIX_ASYNCHRONOUS_IO == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_ASYNCHRONOUS_IO;
- break;
-#else
- return (_POSIX_ASYNCHRONOUS_IO);
-#endif
- case _SC_MAPPED_FILES:
- return (_POSIX_MAPPED_FILES);
- case _SC_MEMLOCK:
- return (_POSIX_MEMLOCK);
- case _SC_MEMLOCK_RANGE:
- return (_POSIX_MEMLOCK_RANGE);
- case _SC_MEMORY_PROTECTION:
- return (_POSIX_MEMORY_PROTECTION);
- case _SC_MESSAGE_PASSING:
-#if _POSIX_MESSAGE_PASSING == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_MESSAGE_PASSING;
- goto yesno;
-#else
- return (_POSIX_MESSAGE_PASSING);
-#endif
- case _SC_PRIORITIZED_IO:
-#if _POSIX_PRIORITIZED_IO == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_PRIORITIZED_IO;
- goto yesno;
-#else
- return (_POSIX_PRIORITIZED_IO);
-#endif
- case _SC_PRIORITY_SCHEDULING:
-#if _POSIX_PRIORITY_SCHEDULING == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_PRIORITY_SCHEDULING;
- goto yesno;
-#else
- return (_POSIX_PRIORITY_SCHEDULING);
-#endif
- case _SC_REALTIME_SIGNALS:
-#if _POSIX_REALTIME_SIGNALS == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_REALTIME_SIGNALS;
- goto yesno;
-#else
- return (_POSIX_REALTIME_SIGNALS);
-#endif
- case _SC_SEMAPHORES:
-#if _POSIX_SEMAPHORES == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_SEMAPHORES;
- goto yesno;
-#else
- return (_POSIX_SEMAPHORES);
-#endif
- case _SC_FSYNC:
- return (_POSIX_FSYNC);
-
- case _SC_SHARED_MEMORY_OBJECTS:
- return (_POSIX_SHARED_MEMORY_OBJECTS);
- case _SC_SYNCHRONIZED_IO:
-#if _POSIX_SYNCHRONIZED_IO == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_SYNCHRONIZED_IO;
- goto yesno;
-#else
- return (_POSIX_SYNCHRONIZED_IO);
-#endif
- case _SC_TIMERS:
-#if _POSIX_TIMERS == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_TIMERS;
- goto yesno;
-#else
- return (_POSIX_TIMERS);
-#endif
- case _SC_AIO_LISTIO_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_AIO_LISTIO_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_AIO_LISTIO_MAX;
-#else
- mib[0] = CTL_KERN;;
- mib[1] = KERN_AIOMAX;
-#endif
- break;
- case _SC_AIO_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_AIO_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_AIO_MAX;
-#else
- mib[0] = CTL_KERN;;
- mib[1] = KERN_AIOMAX;
-#endif
- break;
- case _SC_AIO_PRIO_DELTA_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_AIO_PRIO_DELTA_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_AIO_PRIO_DELTA_MAX;
- break;
-#else
- return (-1);
-#endif
- case _SC_DELAYTIMER_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_DELAYTIMER_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_DELAYTIMER_MAX;
- goto yesno;
-#else
- return (-1);
-#endif
- case _SC_MQ_OPEN_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_MQ_OPEN_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_MQ_OPEN_MAX;
- goto yesno;
-#else
- return (-1);
-#endif
- case _SC_PAGESIZE:
- defaultresult = getpagesize();
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_PAGESIZE)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_PAGESIZE;
- goto yesno;
-#else
- return defaultresult;
-#endif
- case _SC_RTSIG_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_RTSIG_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_RTSIG_MAX;
- goto yesno;
-#else
- return (-1);
-#endif
- case _SC_SEM_NSEMS_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_RTSIG_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_SEM_NSEMS_MAX;
- goto yesno;
-#else
- len = sizeof(value);
- return (sysctlbyname("kern.sysv.semmns", &value, &len, NULL, 0) == -1 ? -1 : value);
-#endif
-
- case _SC_SEM_VALUE_MAX:
-#if SEM_VALUE_MAX == 0
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_SEM_VALUE_MAX;
- goto yesno;
-#else
- return (SEM_VALUE_MAX);
-#endif
- case _SC_SIGQUEUE_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_SIGQUEUE_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_SIGQUEUE_MAX;
- goto yesno;
-#else
- return (-1);
-#endif
- case _SC_TIMER_MAX:
-#if defined(CTL_P1003_1B) && defined(CTL_P1003_1B_TIMER_MAX)
- mib[0] = CTL_P1003_1B;
- mib[1] = CTL_P1003_1B_TIMER_MAX;
-#else
- return (-1);
-#endif
-
-yesno:
- len = sizeof(value);
- if (sysctl(mib, 2, &value, &len, NULL, 0) == -1)
- return (-1);
- if (value == 0)
- return (defaultresult);
- return ((long)value);
-
- case _SC_2_PBS:
- case _SC_2_PBS_ACCOUNTING:
- case _SC_2_PBS_CHECKPOINT:
- case _SC_2_PBS_LOCATE:
- case _SC_2_PBS_MESSAGE:
- case _SC_2_PBS_TRACK:
-#if _POSIX2_PBS == 0
-#error "don't know how to determine _SC_2_PBS"
- /*
- * This probably requires digging through the filesystem
- * to see if the appropriate package has been installed.
- * Since we don't currently support this option at all,
- * it's not worth the effort to write the code now.
- * Figuring out which of the sub-options are supported
- * would be even more difficult, so it's probably easier
- * to always say ``no''.
- */
-#else
- return (_POSIX2_PBS);
-#endif
- case _SC_ADVISORY_INFO:
-#if _POSIX_ADVISORY_INFO == 0
-#error "_POSIX_ADVISORY_INFO"
-#else
- return (_POSIX_ADVISORY_INFO);
-#endif
- case _SC_BARRIERS:
-#if _POSIX_BARRIERS == 0
-#error "_POSIX_BARRIERS"
-#else
- return (_POSIX_BARRIERS);
-#endif
- case _SC_CLOCK_SELECTION:
-#if _POSIX_CLOCK_SELECTION == 0
-#error "_POSIX_CLOCK_SELECTION"
-#else
- return (_POSIX_CLOCK_SELECTION);
-#endif
- case _SC_CPUTIME:
-#if _POSIX_CPUTIME == 0
-#error "_POSIX_CPUTIME"
-#else
- return (_POSIX_CPUTIME);
-#endif
- case _SC_FILE_LOCKING:
- case _SC_GETGR_R_SIZE_MAX:
-/* return sizeof(group) + group_name_max + group_passwd_max + max_group_member*(MAXLOGNAME+1); */
- return 4096; /* INT_MAX is too big for Perl */
- case _SC_GETPW_R_SIZE_MAX:
- return 4096;
- case _SC_HOST_NAME_MAX:
- return (MAXHOSTNAMELEN - 1); /* does not include \0 */
- case _SC_LOGIN_NAME_MAX:
- return (MAXLOGNAME);
- case _SC_MONOTONIC_CLOCK:
-#if _POSIX_MONOTONIC_CLOCK == 0
-#error "_POSIX_MONOTONIC_CLOCK"
-#else
- return (_POSIX_MONOTONIC_CLOCK);
-#endif
- case _SC_MQ_PRIO_MAX:
- return (-1);
- case _SC_READER_WRITER_LOCKS:
- return (_POSIX_READER_WRITER_LOCKS);
- case _SC_REGEXP:
- return (_POSIX_REGEXP);
- case _SC_SHELL:
- return (_POSIX_SHELL);
- case _SC_SPAWN:
- return (_POSIX_SPAWN);
- case _SC_SPIN_LOCKS:
- return (_POSIX_SPIN_LOCKS);
- case _SC_SPORADIC_SERVER:
-#if _POSIX_SPORADIC_SERVER == 0
-#error "_POSIX_SPORADIC_SERVER"
-#else
- return (_POSIX_SPORADIC_SERVER);
-#endif
- case _SC_THREAD_ATTR_STACKADDR:
- return (_POSIX_THREAD_ATTR_STACKADDR);
- case _SC_THREAD_ATTR_STACKSIZE:
- return (_POSIX_THREAD_ATTR_STACKSIZE);
- case _SC_THREAD_CPUTIME:
- return (_POSIX_THREAD_CPUTIME);
- case _SC_THREAD_DESTRUCTOR_ITERATIONS:
- return (PTHREAD_DESTRUCTOR_ITERATIONS);
- case _SC_THREAD_KEYS_MAX:
- return (PTHREAD_KEYS_MAX);
- case _SC_THREAD_PRIO_INHERIT:
- return (_POSIX_THREAD_PRIO_INHERIT);
- case _SC_THREAD_PRIO_PROTECT:
- return (_POSIX_THREAD_PRIO_PROTECT);
- case _SC_THREAD_PRIORITY_SCHEDULING:
- return (_POSIX_THREAD_PRIORITY_SCHEDULING);
- case _SC_THREAD_PROCESS_SHARED:
- return (_POSIX_THREAD_PROCESS_SHARED);
- case _SC_THREAD_SAFE_FUNCTIONS:
- return (_POSIX_THREAD_SAFE_FUNCTIONS);
- case _SC_THREAD_SPORADIC_SERVER:
- return (_POSIX_THREAD_SPORADIC_SERVER);
- case _SC_THREAD_STACK_MIN:
- return (PTHREAD_STACK_MIN);
- case _SC_THREAD_THREADS_MAX:
-#ifdef PTHREAD_THREADS_MAX
- return (PTHREAD_THREADS_MAX); /* XXX wrong type! */
-#else
- return (-1);
-#endif
- case _SC_TIMEOUTS:
- return (_POSIX_TIMEOUTS);
- case _SC_THREADS:
- return (_POSIX_THREADS);
- case _SC_TRACE:
-#if _POSIX_TRACE == 0
-#error "_POSIX_TRACE"
- /* While you're implementing this, also do the ones below. */
-#else
- return (_POSIX_TRACE);
-#endif
- case _SC_TRACE_EVENT_FILTER:
- return (_POSIX_TRACE_EVENT_FILTER);
- case _SC_TRACE_INHERIT:
- return (_POSIX_TRACE_INHERIT);
- case _SC_TRACE_LOG:
- return (_POSIX_TRACE_LOG);
- case _SC_TTY_NAME_MAX:
- path = "/"; // should be _PATH_DEV (PR-3624562)
- goto do_NAME_MAX;
- case _SC_TYPED_MEMORY_OBJECTS:
-#if _POSIX_TYPED_MEMORY_OBJECTS == 0
-#error "_POSIX_TYPED_MEMORY_OBJECTS"
-#else
- return (_POSIX_TYPED_MEMORY_OBJECTS);
-#endif
- case _SC_V6_ILP32_OFF32:
-#if _V6_ILP32_OFF32 == 0
- if (sizeof(int) * CHAR_BIT == 32 &&
- sizeof(int) == sizeof(long) &&
- sizeof(long) == sizeof(void *) &&
- sizeof(void *) == sizeof(off_t))
- return 1;
- else
- return -1;
-#else
- return (_V6_ILP32_OFF32);
-#endif
- case _SC_V6_ILP32_OFFBIG:
-#if _V6_ILP32_OFFBIG == 0
- if (sizeof(int) * CHAR_BIT == 32 &&
- sizeof(int) == sizeof(long) &&
- sizeof(long) == sizeof(void *) &&
- sizeof(off_t) * CHAR_BIT >= 64)
- return 1;
- else
- return -1;
-#else
- return (_V6_ILP32_OFFBIG);
-#endif
- case _SC_V6_LP64_OFF64:
-#if _V6_LP64_OFF64 == 0
- if (sizeof(int) * CHAR_BIT == 32 &&
- sizeof(long) * CHAR_BIT == 64 &&
- sizeof(long) == sizeof(void *) &&
- sizeof(void *) == sizeof(off_t))
- return 1;
- else
- return -1;
-#else
- return (_V6_LP64_OFF64);
-#endif
- case _SC_V6_LPBIG_OFFBIG:
-#if _V6_LPBIG_OFFBIG == 0
- if (sizeof(int) * CHAR_BIT >= 32 &&
- sizeof(long) * CHAR_BIT >= 64 &&
- sizeof(void *) * CHAR_BIT >= 64 &&
- sizeof(off_t) * CHAR_BIT >= 64)
- return 1;
- else
- return -1;
-#else
- return (_V6_LPBIG_OFFBIG);
-#endif
- case _SC_ATEXIT_MAX:
- return (INT_MAX); /* unlimited */
- case _SC_IOV_MAX:
-#ifdef KERN_IOV_MAX
- mib[0] = CTL_KERN;
- mib[1] = KERN_IOV_MAX;
- break;
-#else
- return (IOV_MAX);
-#endif
- case _SC_XOPEN_CRYPT:
- return (_XOPEN_CRYPT);
- case _SC_XOPEN_ENH_I18N:
- return (_XOPEN_ENH_I18N);
- case _SC_XOPEN_LEGACY:
- return (_XOPEN_LEGACY);
- case _SC_XOPEN_REALTIME:
-#if _XOPEN_REALTIME == 0
- sverrno = errno;
- value = sysconf(_SC_ASYNCHRONOUS_IO) > 0 &&
- sysconf(_SC_MEMLOCK) > 0 &&
- sysconf(_SC_MEMLOCK_RANGE) > 0 &&
- sysconf(_SC_MESSAGE_PASSING) > 0 &&
- sysconf(_SC_PRIORITY_SCHEDULING) > 0 &&
- sysconf(_SC_REALTIME_SIGNALS) > 0 &&
- sysconf(_SC_SEMAPHORES) > 0 &&
- sysconf(_SC_SHARED_MEMORY_OBJECTS) > 0 &&
- sysconf(_SC_SYNCHRONIZED_IO) > 0 &&
- sysconf(_SC_TIMERS) > 0;
- errno = sverrno;
- if (value)
- return (200112L);
- else
- return (-1);
-#else
- return (_XOPEN_REALTIME);
-#endif
- case _SC_XOPEN_REALTIME_THREADS:
-#if _XOPEN_REALTIME_THREADS == 0
-#error "_XOPEN_REALTIME_THREADS"
-#else
- return (_XOPEN_REALTIME_THREADS);
-#endif
- case _SC_XOPEN_SHM:
- sverrno = errno;
- len = sizeof(qdvalue);
- if (sysctlbyname("kern.sysv.shmmin", &qdvalue, &len, NULL,
- 0) == -1) {
- errno = sverrno;
- return (-1);
- }
- errno = sverrno;
- return (1);
- case _SC_XOPEN_STREAMS:
- return (_XOPEN_STREAMS);
- case _SC_XOPEN_UNIX:
- return (_XOPEN_UNIX);
-#ifdef _XOPEN_VERSION
- case _SC_XOPEN_VERSION:
- return (_XOPEN_VERSION);
-#endif
-#ifdef _XOPEN_XCU_VERSION
- case _SC_XOPEN_XCU_VERSION:
- return (_XOPEN_XCU_VERSION);
-#endif
- case _SC_SYMLOOP_MAX:
- return (MAXSYMLINKS);
- case _SC_RAW_SOCKETS:
- return (_POSIX_RAW_SOCKETS);
- case _SC_IPV6:
-#if _POSIX_IPV6 == 0
- sverrno = errno;
- value = socket(PF_INET6, SOCK_DGRAM, 0);
- errno = sverrno;
- if (value >= 0) {
- close(value);
- return (200112L);
- } else
- return (0);
-#else
- return (_POSIX_IPV6);
-#endif
-
-#ifdef _SC_NPROCESSORS_CONF
- case _SC_NPROCESSORS_CONF:
-#endif
-#ifdef _SC_NPROCESSORS_ONLN
- case _SC_NPROCESSORS_ONLN:
-#endif
-#if defined(_SC_NPROCESSORS_CONF) || defined(_SC_NPROCESSORS_ONLN)
- mib[0] = CTL_HW;
- mib[1] = HW_NCPU;
- break;
-#endif
- case _SC_XBS5_ILP32_OFF32:
- return (_XBS5_ILP32_OFF32);
- case _SC_XBS5_ILP32_OFFBIG:
- return (_XBS5_ILP32_OFFBIG);
- case _SC_XBS5_LP64_OFF64:
- return (_XBS5_LP64_OFF64);
- case _SC_XBS5_LPBIG_OFFBIG:
- return (_XBS5_LPBIG_OFFBIG);
- case _SC_SS_REPL_MAX:
- return (_POSIX_SS_REPL_MAX);
- case _SC_TRACE_EVENT_NAME_MAX:
- return (_POSIX_TRACE_EVENT_NAME_MAX);
- case _SC_TRACE_NAME_MAX:
- return (_POSIX_TRACE_NAME_MAX);
- case _SC_TRACE_SYS_MAX:
- return (_POSIX_TRACE_SYS_MAX);
- case _SC_TRACE_USER_EVENT_MAX:
- return (_POSIX_TRACE_USER_EVENT_MAX);
- case _SC_PASS_MAX:
- return (PASS_MAX);
-
-#ifdef _SC_PHYS_PAGES
- case _SC_PHYS_PAGES:
-#ifdef __APPLE__
- {
- long memsize;
- long pagesize;
-
- len = sizeof(memsize);
- if (sysctlbyname("hw.memsize", &memsize, &len, NULL, 0) == -1)
- return (-1);
-
- len = sizeof(pagesize);
- if (sysctlbyname("hw.pagesize", &pagesize, &len, NULL, 0) == -1)
- return (-1);
-
- return (memsize / pagesize);
- }
-#else
- len = sizeof(lvalue);
- if (sysctlbyname("hw.availpages", &lvalue, &len, NULL, 0) == -1)
- return (-1);
- return (lvalue);
-#endif
-#endif
-
- default:
- errno = EINVAL;
- return (-1);
- }
- len = sizeof(value);
- if (sysctl(mib, 2, &value, &len, NULL, 0) == -1)
- value = -1;
- return ((long)value);
-}