Summary of this long ChangeLog:

* Splitted `libgtop_sysdeps.la' into `libgtop_sysdeps.la' and
   `libgtop_sysdeps_suid.la'.

   Everything that needs to be suid/sgid is in `libgtop_sysdeps_suid.la'
   and the rest in `libgtop_sysdeps.la'.

   The functions from `libgtop_sysdeps_suid.la' have the `_p' prefix and
   the ones from `libgtop_sysdeps.la' the `_s' prefix.

   The suid library uses `glibtop_open_p' and `glibtop_close_p', the
   normal one `glibtop_init_s' (found in lib/init.c), `glibtop_open_s'
   and `glibtop_close_s'.

 * Added `libgtop_suid_common.la' containing stuff from sysdeps/common
   that is required from the suid server (currently everything from
   error.c and xmalloc.c).

   This means, we can add some more stuff to `libgtop_common.la' without
   the risk that it may be dangerous in the suid server.

 * The ``library order'' is much clearer now:

   -> `libgtop.la' (from lib/) contains user-level stuff;
      all functions except `glibtop_init_r' have the `_l'
      suffix.

   -> `libgtop_common.la' (from sysdeps/common/) contains stuff
      that is common among the sysdeps directories.
      use anything from `libgtop_sysdeps.la' and
      `libgtop_sysdeps_suid.la'.

   -> `libgtop_sysdeps.la' (from sysdeps/<sysdeps_dir>/) contains
      everything from the sysdeps directory that doesn't need to
      be suid/sgid.

   -> `libgtop_suid_common.la' (from sysdeps/common/) is used from
      the suid server instead of `libgtop_common.la'.

   -> `libgtop_sysdeps_suid.la' (from sysdeps/<sysdeps_dir>/) contains
      everything from the sysdeps directory that needs to be in the
      suid server.

 * To summarize: the server is linked only with functions that need
   to be suid and everything else is linked only with functions that
   do not need to be suid.

Martin

1998-07-22  Martin Baulig  <martin@home-of-linux.org>

	* lib/init.c (glibtop_init_s): Added this init function of
	the sysdeps directory `libgtop_sysdeps.la'.

	* lib/open.c (glibtop_open_l): Unconditionally calling
	`glibtop_init_s' after server initialization.

	* lib/lib.awk: Removed references to functions from
	`libgtop_sysdeps_suid.la' to avoid undefined symbols.

	* sysdeps/stub/open.c (glibtop_open_s): Renamed this
	function from `glibtop_open_r'.

	* sysdeps/stub/close.c (glibtop_close_s): Renamed this
	function from `glibtop_close_l'.

	* sysdeps/kernel/open.c (glibtop_open_s): Renamed this
	function from `glibtop_open_r'.

	* sysdeps/kernel/close.c (glibtop_close_s): Renamed this
	function from `glibtop_close_l'.

	* sysdeps/linux/open.c (glibtop_open_s): Renamed this
	function from `glibtop_open_r'.

	* sysdeps/linux/close.c (glibtop_close_s): Renamed this
	function from `glibtop_close_l'.

	* sysdeps/osf1/Makefile.am (lib_LTLIBRARIES): Added
	`libgtop_sysdeps_suid.la' for the suid server.

	* sysdeps/osf1/open_suid.c (glibtop_open_p): New file.
	Contains all stuff that was formerly in `open.c'.

	* sysdeps/osf1/open.c: Moved everything from here into
	the new file `open_suid.c'.

	* sysdeps/osf1/open.c (glibtop_open_s): New function.

	* sysdeps/osf1/close_suid.c (glibtop_close_p): New file.

	* sysdeps/osf1/close.c (glibtop_close_s): New function.

	* sysdeps/osf1/*.c: Using the new init, open and close
	functions.

	* sysdeps/sun4/Makefile.am (lib_LTLIBRARIES): Added
	`libgtop_sysdeps_suid.la' for the suid server.

	* sysdeps/sun4/nosuid.c (glibtop_open_s, glibtop_close_s): New file

	* sysdeps/sun4/*.c: All functions now have the `_p' suffix.

	* sysdeps/common/Makefile.am (lib_LTLIBRARIES): Added
	`libgtop_suid_common.la' which only contains stuff that is
	needed in the suid parts.

	* sysdeps/common/xmalloc.c: Using `glibtop_error_io_r' instead
	of `glibtop_error_r'.

	* sysdeps/{kernel, linux, osf1, sun4, stub}/init.c: Removed.
	`glibtop_init_s' has been moved into `lib/init.c' since it's the
	same in all the sysdeps directories.

	* src/server/main.c: It is now an error to request a feature that
	does not need the suid server.

	* src/proxy: Removed.

src/daemon/io.c

@@ -0,0 +1,82 @@
+/* $Id$ */
+
+/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the Gnome Top Library.
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   The Gnome Top 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 Gnome Top 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 "daemon.h"
+
+void
+do_output (int s, glibtop_response *resp, off_t offset,
+	   size_t data_size, const void *data)
+{
+#ifdef REAL_DEBUG
+	fprintf (stderr, "Really writing %d bytes at offset %lu.\n",
+		 sizeof (glibtop_response), offset);
+#endif
+
+	resp->offset = offset;
+	resp->data_size = data_size;
+	
+	if (send (s, resp, sizeof (glibtop_response), 0) < 0)
+		glibtop_warn_io ("send");
+
+	if (resp->data_size) {
+#ifdef REAL_DEBUG
+		fprintf (stderr, "Writing %d bytes of data.\n", resp->data_size);
+#endif
+
+		if (send (s, data, resp->data_size, 0) , 0)
+			glibtop_warn_io ("send");
+	}
+}
+
+int
+do_read (int s, void *ptr, size_t total_size)
+{
+	int nread;
+	size_t already_read = 0, remaining = total_size;
+
+	while (already_read < total_size) {
+		if (s)
+			nread = recv (s, ptr, remaining, 0);
+		else
+			nread = read (0, ptr, remaining);
+
+		if ((already_read == 0) && (nread == 0)) {
+			glibtop_warn ("pid %d received eof.", getpid ());
+			return 0;
+		}
+
+		if (nread <= 0) {
+			glibtop_warn_io ("recv");
+			return 0;
+		}
+
+		already_read += nread;
+		remaining -= nread;
+		(char *) ptr += nread;
+
+#ifdef REAL_DEBUG
+		fprintf (stderr, "READ (%d): %d - %d - %d\n",
+			 nread, already_read, remaining, total_size);
+#endif
+	}
+
+	return already_read;
+}