1 files changed, 55 insertions, 0 deletions
diff --git a/cpukit/posix/src/sysconf.c b/cpukit/posix/src/sysconf.c
new file mode 100644
index 0000000000..97a774da25
--- /dev/null
+++ b/cpukit/posix/src/sysconf.c
@@ -0,0 +1,55 @@
+/*
+ *  COPYRIGHT (c) 1989-2007.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <time.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <rtems/system.h>
+#include <rtems/seterr.h>
+#include <rtems/score/tod.h>
+#include <rtems/libio_.h>
+
+#include <sys/param.h>
+
+/*PAGE
+ *
+ *  4.8.1 Get Configurable System Variables, P1003.1b-1993, p. 95
+ */
+
+long sysconf(
+  int name
+)
+{
+  if ( name == _SC_CLK_TCK )
+    return (TOD_MICROSECONDS_PER_SECOND /
+      rtems_configuration_get_microseconds_per_tick());
+
+  if ( name == _SC_OPEN_MAX )
+    return rtems_libio_number_iops;
+
+  if ( name == _SC_GETPW_R_SIZE_MAX )
+    return 1024;
+
+  if ( name == _SC_PAGESIZE )
+    return PAGE_SIZE;
+
+#if defined(__sparc__)
+  if ( name == 515 ) /* Solaris _SC_STACK_PROT */
+   return 0;
+#endif
+
+  rtems_set_errno_and_return_minus_one( EINVAL );
+}