Import glibc-ports-mainline for 2006-08-16

git-svn-id: svn://svn.eglibc.org/fsf/trunk@8 7b3dc134-2b1b-0410-93df-9e9f96275f8d

1 files changed, 366 insertions, 0 deletions

diff --git a/ports/sysdeps/unix/sysv/sysv4/sysconf.c b/ports/sysdeps/unix/sysv/sysv4/sysconf.c
new file mode 100644
index 000000000..bfe7823c4
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/sysv4/sysconf.c
@@ -0,0 +1,366 @@
+/* Copyright (C) 1993,1995,1996,1997,2002,2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <time.h>
+#include <sysconfig.h>
+
+extern int __sysconfig (int);
+
+/* Get the value of the system variable NAME.  */
+long int
+__sysconf (name)
+     int name;
+{
+  switch (name)
+    {
+    default:
+      __set_errno (EINVAL);
+      return -1;
+
+    case _SC_ARG_MAX:
+#ifdef	ARG_MAX
+      return ARG_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_CHILD_MAX:
+#ifdef	CHILD_MAX
+      return CHILD_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_CLK_TCK:
+      return __sysconfig (_CONFIG_CLK_TCK);
+
+    case _SC_NGROUPS_MAX:
+#ifdef	NGROUPS_MAX
+      return NGROUPS_MAX;
+#else
+      return -1;
+#endif
+
+      /* Both of these are looking for _CONFIG_OPEN_FILES.  */
+    case _SC_OPEN_MAX:
+    case _SC_STREAM_MAX:
+      return __sysconfig (_CONFIG_OPEN_FILES);
+
+    case _SC_TZNAME_MAX:
+      return __tzname_max ();
+
+    case _SC_JOB_CONTROL:
+#ifdef	_POSIX_JOB_CONTROL
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SAVED_IDS:
+#ifdef	_POSIX_SAVED_IDS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_REALTIME_SIGNALS:
+#ifdef	_POSIX_REALTIME_SIGNALS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PRIORITY_SCHEDULING:
+#ifdef	_POSIX_PRIORITY_SCHEDULING
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_TIMERS:
+#ifdef	_POSIX_TIMERS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_ASYNCHRONOUS_IO:
+#ifdef	_POSIX_ASYNCHRONOUS_IO
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PRIORITIZED_IO:
+#ifdef	_POSIX_PRIORITIZED_IO
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SYNCHRONIZED_IO:
+#ifdef	_POSIX_SYNCHRONIZED_IO
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_FSYNC:
+#ifdef	_POSIX_FSYNC
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MAPPED_FILES:
+#ifdef	_POSIX_MAPPED_FILES
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MEMLOCK:
+#ifdef	_POSIX_MEMLOCK
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MEMLOCK_RANGE:
+#ifdef	_POSIX_MEMLOCK_RANGE
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MEMORY_PROTECTION:
+#ifdef	_POSIX_MEMORY_PROTECTION
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_MESSAGE_PASSING:
+#ifdef	_POSIX_MESSAGE_PASSING
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SEMAPHORES:
+#ifdef	_POSIX_SEMAPHORES
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SHARED_MEMORY_OBJECTS:
+#ifdef	_POSIX_SHARED_MEMORY_OBJECTS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_VERSION:
+      return _POSIX_VERSION;
+
+    case _SC_PAGESIZE:
+      return __sysconfig (_CONFIG_PAGESIZE);
+
+    case _SC_AIO_LISTIO_MAX:
+#ifdef	AIO_LISTIO_MAX
+      return AIO_LISTIO_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_AIO_MAX:
+#ifdef	AIO_MAX
+      return AIO_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_AIO_PRIO_DELTA_MAX:
+#ifdef	AIO_PRIO_DELTA_MAX
+      return AIO_PRIO_DELTA_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_DELAYTIMER_MAX:
+#ifdef	DELAYTIMER_MAX
+      return DELAYTIMER_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_MQ_OPEN_MAX:
+#ifdef	MQ_OPEN_MAX
+      return MQ_OPEN_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_MQ_PRIO_MAX:
+#ifdef	MQ_PRIO_MAX
+      return MQ_PRIO_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_RTSIG_MAX:
+#ifdef	RTSIG_MAX
+      return RTSIG_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_SEM_NSEMS_MAX:
+#ifdef	SEM_NSEMS_MAX
+      return SEM_NSEMS_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_SEM_VALUE_MAX:
+#ifdef	SEM_VALUE_MAX
+      return SEM_VALUE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_SIGQUEUE_MAX:
+#ifdef	SIGQUEUE_MAX
+      return SIGQUEUE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_TIMER_MAX:
+#ifdef	TIMER_MAX
+      return TIMER_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_BASE_MAX:
+#ifdef	BC_BASE_MAX
+      return BC_BASE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_DIM_MAX:
+#ifdef	BC_DIM_MAX
+      return BC_DIM_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_SCALE_MAX:
+#ifdef	BC_SCALE_MAX
+      return BC_SCALE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_BC_STRING_MAX:
+#ifdef	BC_STRING_MAX
+      return BC_STRING_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_EQUIV_CLASS_MAX:
+#ifdef	EQUIV_CLASS_MAX
+      return EQUIV_CLASS_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_EXPR_NEST_MAX:
+#ifdef	EXPR_NEST_MAX
+      return EXPR_NEST_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_LINE_MAX:
+#ifdef	LINE_MAX
+      return LINE_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_RE_DUP_MAX:
+#ifdef	RE_DUP_MAX
+      return RE_DUP_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_CHARCLASS_NAME_MAX:
+#ifdef	CHARCLASS_NAME_MAX
+      return CHARCLASS_NAME_MAX;
+#else
+      return -1;
+#endif
+
+    case _SC_2_VERSION:
+      /* This is actually supposed to return the version
+	 of the 1003.2 utilities on the system {POSIX2_VERSION}.  */
+      return _POSIX2_C_VERSION;
+
+    case _SC_2_C_BIND:
+#ifdef	_POSIX2_C_BIND
+      return _POSIX2_C_BIND;
+#else
+      return -1;
+#endif
+
+    case _SC_2_C_DEV:
+#ifdef	_POSIX2_C_DEV
+      return _POSIX2_C_DEV;
+#else
+      return -1;
+#endif
+
+    case _SC_2_FORT_DEV:
+#ifdef	_POSIX2_FORT_DEV
+      return _POSIX2_FORT_DEV;
+#else
+      return -1;
+#endif
+
+    case _SC_2_SW_DEV:
+#ifdef	_POSIX2_SW_DEV
+      return _POSIX2_SW_DEV;
+#else
+      return -1;
+#endif
+    }
+}
+
+weak_alias (__sysconf, sysconf)
+libc_hidden_def (__sysconf)