update from main archive 960921

Sun Sep 22 03:40:52 1996  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/resolv.h: Update to bind-4.9.5-T4B.
	* resolv/base64.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/res_query.c: Likewise.
	* resolv/gethnamaddr.c: Likewise.
	* nss/nss_dns/dns-host.c: Likewise.
	* resolv/res_comp.c: Likewise.
	* resolv/res_send.c: Likewise.
	* resolv/arpa/nameser.h: Likewise.  Attention: MAXDNAME is much
	higher now.

	* resolv/Banner: New file.
	* resolv/Makefile (distribute): Add Banner.

Sat Sep 21 19:15:24 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/stub/getsysstats.c: New file.
	* sysdeps/unix/sysv/linux/getsysstats.c: New file.

	* misc/Makefile (headers): Add sys/sysinfo.h.
	(routines): Add getsysstats.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)==misc]
 	(sysdep_headers): Remove sys/sysinfo.h.
	* sysdeps/generic/sys/sysinfo.h: New file.
	* sysdeps/unix/sysv/linux/sys/sysinfo.h: Add prototype for get_nprocs,
	get_phys_pages, and get_avphys_pages.

	* misc/Makefile (routines): Add mntent_r.
	* misc/mntent_r.c: New file.
	* misc/mntent.c: Remove all functions but getmntent and use
	__getmntent_r.
	* misc/mntent.h: Add prototype for __getmntent_r.
	* misc/fstab.c: Use __getmntent_r function instead of getmntent.
	This will not clobber the state in getmntent.

	* sysdeps/generic/confname.h: Add _SC_PROCESSORS_CONF,
	_SC_NPROCESSORS_ONLN, _SC_PHYS_PAGES, _SC_AVPHYS_PAGES,
	_SC_ATEXIT_MAX, and _SC_PASS_MAX.
	* sysdeps/stub/sysconf.c: Add handling _SC_PROCESSORS_CONF and
	_SC_NPROCESSORS_ONLN by calling __get_nprocs, _SC_PHYS_PAGES by
	calling __get_phys_pages, _SY_AVPHYS_PAGES by calling
	__get_avphys_pages, _SC_ATEXIT_MAX and _SC_PASS_MAX.
	* sysdeps/posix/sysconf.c: Likewise.
	* posix/getconf.c (vars): Add _NPROCESSORS_CONF, _NPROCESSORS_ONLN,
	_PHYS_PAGES, _AVPHYS_PAGES, ATEXIT_MAX, and PASS_MAX entries.

Sat Sep 21 05:20:36 1996  Ulrich Drepper  <drepper@cygnus.com>

	* version.h (VERSION): Bump to 1.95.

	* Make-dist (+tsrcs): Don't filter out files in subdirs which
 	match files in the sysdeps hierachy (welcome back,
 	sys/syscall.h!).

	* resolv/Makefile (libresolv-routines): Remove getnetnamad.

Sat Sep 21 03:00:19 1996  Ulrich Drepper  <drepper@cygnus.com>

	* locale/loadlocale.c (_nl_free_locale): Remove function.
	* locale/localeinfo.h: Remove prototype for _nl_free_locale.
	* locale/setlocale.c (setlocale): Don't free locale data of
 	categories which succeeded to load after a wrong or missing data
 	file was observed.

	* locale/setlocale (setlocale): Initialize NEWNAME correctly so
	that it works even when the locale data is not used.

	* stdlib/random_r.c: Fix typo in comment.
	* stdlib/drand48-iter.c: Likewise.
	* stdlib/drand48.c: Likewise.
	* stdlib/erand48.c: Likewise.
	* stdlib/jrand48.c: Likewise.
	* stdlib/lcong48.c: Likewise.
	* stdlib/lrand48.c: Likewise.
	* stdlib/mrand48.c: Likewise.
	* stdlib/nrand48.c: Likewise.
	* stdlib/random.c: Likewise.
	* stdlib/seed48.c: Likewise.
	* stdlib/srand48.c: Likewise.
	* misc/search.h: Likewise.
	* misc/hsearch.c: Likewise.
	* misc/hsearch_r.c: Likewise.

	* sysdeps/unix/sysv/linux/m68k/sysdep.S (__errno_location):
Thu Sep 19 23:36:19 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* hurd/hurdinit.c (__libc_argv): Provide common decl.
	(_hurd_setproc): Don't declare __libc_argv here.

3 files changed, 219 insertions, 1 deletions

diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 02b44a8fc5..33220df5f6 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -5,7 +5,7 @@ endif
 ifeq ($(subdir), misc)
 sysdep_routines += sysctl clone
 
-sysdep_headers += sys/mount.h sys/sysinfo.h sys/acct.h sys/sysctl.h \
+sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
 		  sys/module.h sys/io.h sys/klog.h sys/kdaemon.h \
 		  sys/user.h syscall-list.h sys/sysmacros.h sys/procfs.h
 
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c
new file mode 100644
index 0000000000..81946b422f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getsysstats.c
@@ -0,0 +1,200 @@
+/* getsysstats - Determine various system internal values, Linux version.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <mntent.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/sysinfo.h>
+
+
+/* Determine the path to the /proc filesystem if available.  */
+static char *
+get_proc_path (char *buffer, size_t bufsize)
+{
+  FILE *fp;
+  struct mntent mount_point;
+  struct mntent *entry;
+  char *result;
+
+  /* First find the mount point of the proc filesystem.  */
+  fp = __setmntent (_PATH_MNTTAB, "r");
+  if (fp == NULL)
+    /* Cannot find mount table file.  */
+    result = NULL;
+  else
+    {
+      while ((entry = __getmntent_r (fp, &mount_point, buffer, bufsize))
+	     != NULL)
+	if (strcmp (mount_point.mnt_type, "proc") == 0)
+	  {
+	    result = mount_point.mnt_dir;
+	    break;
+	  }
+      __endmntent (fp);
+    }
+
+  return result;
+}
+
+
+/* How we can determine the number of available processors depends on
+   the configuration.  There is currently (as of version 2.0.21) no
+   system call to determine the number.  It is planned for the 2.1.x
+   series to add this, though.
+
+   One possibility to implement it for systems using Linux 2.0 is to
+   examine the pseudo file /proc/meminfo.  Here we have one entry for
+   each processor.
+
+   But not all systems have support for the /proc filesystem.  If it
+   is not available we simply return 1 since there is no way.  */
+int
+__get_nprocs ()
+{
+  FILE *fp;
+  char buffer[8192];
+  char *proc_path;
+  int result = 1;
+
+  /* XXX Here will come a test for the new system call.  */
+
+  /* Get mount point of proc filesystem.  */
+  proc_path = get_proc_path (buffer, sizeof buffer);
+
+  /* If we haven't found an appropriate entry return 1.  */
+  if (proc_path != NULL)
+    {
+      char *proc_cpuinfo = alloca (strlen (proc_path) + sizeof ("/cpuinfo"));
+      __stpcpy (__stpcpy (proc_cpuinfo, proc_path), "/cpuinfo");
+
+      fp = fopen (proc_cpuinfo, "r");
+      if (fp != NULL)
+	{
+	  result = 0;
+	  /* Read all lines and count the lines starting with the
+	     string "processor".  We don't have to fear extremely long
+	     lines since the kernel will not generate them.  8192
+	     bytes are really enough.  */
+	  while (fgets (buffer, sizeof buffer, fp) != NULL)
+	    if (strncmp (buffer, "processor", 9) == 0)
+	      ++result;
+
+	  fclose (fp);
+	}
+    }
+
+  return result;
+}
+weak_alias (__get_nprocs, get_nprocs)
+
+/* As far as I know Linux has no separate numbers for configured and
+   available processors.  So make the `get_nprocs_conf' function an
+   prototype.  */
+strong_alias (__get_nprocs, __get_nprocs_conf)
+weak_alias (__get_nprocs, get_nprocs_conf)
+
+
+/* General function to get information about memory status from proc
+   filesystem.  */
+static int
+phys_pages_info (const char *format)
+{
+  FILE *fp;
+  char buffer[8192];
+  char *proc_path;
+  int result = -1;
+
+  /* Get mount point of proc filesystem.  */
+  proc_path = get_proc_path (buffer, sizeof buffer);
+
+  /* If we haven't found an appropriate entry return 1.  */
+  if (proc_path != NULL)
+    {
+      char *proc_meminfo = alloca (strlen (proc_path) + sizeof ("/meminfo"));
+      __stpcpy (__stpcpy (proc_meminfo, proc_path), "/meminfo");
+
+      fp = fopen (proc_meminfo, "r");
+      if (fp != NULL)
+	{
+	  result = 0;
+	  /* Read all lines and count the lines starting with the
+	     string "processor".  We don't have to fear extremely long
+	     lines since the kernel will not generate them.  8192
+	     bytes are really enough.  */
+	  while (fgets (buffer, sizeof buffer, fp) != NULL)
+	    if (sscanf (buffer, format, &result) == 1)
+	      {
+		result /= (__getpagesize () / 1024);
+		break;
+	      }
+
+	  fclose (fp);
+	}
+    }
+
+  if (result == -1)
+    /* We cannot get the needed value: signal an error.  */
+    errno = ENOSYS;
+
+  return result;
+}
+
+
+/* Return the number of pages of physical memory in the system.  There
+   is currently (as of version 2.0.21) no system call to determine the
+   number.  It is planned for the 2.1.x series to add this, though.
+
+   One possibility to implement it for systems using Linux 2.0 is to
+   examine the pseudo file /proc/cpuinfo.  Here we have one entry for
+   each processor.
+
+   But not all systems have support for the /proc filesystem.  If it
+   is not available we return -1 as an error signal.  */
+int
+__get_phys_pages ()
+{
+  /* XXX Here will come a test for the new system call.  */
+
+  return phys_pages_info ("MemTotal: %d kB");
+}
+weak_alias (__get_phys_pages, get_phys_pages)
+
+
+/* Return the number of available pages of physical memory in the
+   system.  There is currently (as of version 2.0.21) no system call
+   to determine the number.  It is planned for the 2.1.x series to add
+   this, though.
+
+   One possibility to implement it for systems using Linux 2.0 is to
+   examine the pseudo file /proc/cpuinfo.  Here we have one entry for
+   each processor.
+
+   But not all systems have support for the /proc filesystem.  If it
+   is not available we return -1 as an error signal.  */
+int
+__get_avphys_pages ()
+{
+  /* XXX Here will come a test for the new system call.  */
+
+  return phys_pages_info ("MemFree: %d kB");
+}
+weak_alias (__get_avphys_pages, get_avphys_pages)
diff --git a/sysdeps/unix/sysv/linux/sys/sysinfo.h b/sysdeps/unix/sysv/linux/sys/sysinfo.h
index c05da05b3d..1fabb06392 100644
--- a/sysdeps/unix/sysv/linux/sys/sysinfo.h
+++ b/sysdeps/unix/sysv/linux/sys/sysinfo.h
@@ -27,4 +27,22 @@ Boston, MA 02111-1307, USA.  */
 /* Returns information on overall system statistics.  */
 extern int sysinfo __P ((struct sysinfo *__info));
 
+
+/* Return number of configured processors.  */
+extern int __get_nproc_conf __P ((void));
+extern int get_nproc_conf __P ((void));
+
+/* Return number of available processors.  */
+extern int __get_nproc __P ((void));
+extern int get_nproc __P ((void));
+
+
+/* Return number of physical pages of memory in the system.  */
+extern int __get_phys_pages __P ((void));
+extern int get_phys_pages __P ((void));
+
+/* Return number of available physical pages of memory in the system.  */
+extern int __get_avphys_pages __P ((void));
+extern int get_avphys_pages __P ((void));
+
 #endif	/* sys/sysinfo.h */