New upstream version 2.38.0

src/Makefile.am

@@ -0,0 +1,10 @@
+if LIBGTOP_NEED_SERVER
+daemon_SUBDIRS		= daemon
+else
+daemon_SUBDIRS		=
+endif
+
+SUBDIRS			= $(daemon_SUBDIRS)
+
+DIST_SUBDIRS		= daemon
+

src/Makefile.in

@@ -0,0 +1,695 @@
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+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    || exit 1; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

src/daemon/ChangeLog

@@ -0,0 +1,156 @@
+2005-03-25  Benoît Dejean  <TazForEver@dlfp.org>
+
+	* gnuserv.c: (syslog_io_message): s/strerror/g_strerror.
+
+2005-02-15  Benoît Dejean  <TazForEver@dlfp.org>
+
+	* daemon.h:
+	* gnuserv.c: (syslog_message), (syslog_io_message):
+	* main.c: (handle_parent_connection):
+	* slave.c: (handle_slave_connection), (handle_slave_command): Misc. cleanups.
+
+2004-09-19  Benoît Dejean  <tazforever@dlfp.org>
+
+	* gnuserv.c: (setup_table): 'screen' is only defined when AUTH_MAGIC_COOKIE
+	is defined.
+	Added missing initializers for popt options.
+
+2004-05-25  Benoît Dejean  <tazforever@dlfp.org>
+
+	* gnuserv.c: (permitted): Cast to size_t to remove warning.
+
+2004-03-04  Bastien Nocera  <hadess@hadess.net>
+
+	* Makefile.am:
+	* gnuserv.c: link explicitely to popt and use libgtop-i18n.h
+	instead of libgnome
+
+2003-10-20  Bastien Nocera  <hadess@hadess.net>
+
+	* Makefile.am:
+	* daemon.h:
+	* gnuserv.c: (main): fixed compilation
+
+2003-10-20  Bastien Nocera  <hadess@hadess.net>
+
+	* main.c: (handle_parent_connection):
+	* slave.c: (handle_slave_connection):
+	replace all the xmalloc crap by glib memory management functions
+
+2003-10-20  Bastien Nocera  <hadess@hadess.net>
+
+	* Makefile.am: removed traces of guile, intllibs and libgnomesupport
+
+2003-10-20  Bastien Nocera  <hadess@hadess.net>
+
+	* Makefile.am:
+	* gnuserv.c: remove guile and libgnome-support stuff
+
+2003-10-20  Bastien Nocera  <hadess@hadess.net>
+
+	* Makefile.am: make it compile
+
+2003-05-11  Andrew Sobala  <aes@gnome.org>
+
+	* gnuserv.c: (permitted): fix buffer overflow vulnerability
+
+2001-02-14  Martin Baulig  <baulig@suse.de>
+
+	* Makefile.am (libgtop_server_LDADD): Removed @LIBSUPPORT@.
+
+1999-11-28  Martin Baulig  <martin@home-of-linux.org>
+
+	* gnuserv.c (setup_table): Don't dump core when the table of
+	permitted host names contains a NULL pointer.
+
+1999-07-29  Martin Baulig  <martin@home-of-linux.org>
+
+	* Makefile.am: Link the `libgtop_daemon' and the `libgtop_server'
+	statically if possible.
+
+1999-05-07  Martin Baulig  <martin@home-of-linux.org>
+
+	* server.c (main): There's some problem with uname () - some systems
+	like Solaris or Digital Unix return a nonnegative value on success,
+	some others like Linux return 0. Since all known systems seem to return
+	a negative value on failure, we simply check whether the return value is
+	not negative here.
+
+1999-02-19  Martin Baulig  <martin@home-of-linux.org>
+
+	* Makefile.am (LIBGTOP_COMPILE_SYSTEM): Hardcoded system name.
+	(LIBGTOP_COMPILE_RELEASE): Hardcoded system release.
+	(LIBGTOP_COMPILE_MACHINE): Hardcoded machine type.
+
+	* src/daemon/Makefile.am (libgtop_server_SOURCES): Don't use
+	`@INTLLIBS@' for the server.
+
+	* server.c (main): Abort if not running on the system the server
+	was compiled on.
+
+1999-02-10  Martin Baulig  <martin@home-of-linux.org>
+
+	* gnuserv.c (program_invocation_*_name): Declare this as `extern'
+	if necessary.
+
+1998-12-17  Martin Baulig  <baulig@merkur.uni-trier.de>
+
+	* gnuserv.c: Don't include <gnome-argp.h>.
+	(program_invocation_name, program_invocation_short_name): Define
+	this here.
+
+1998-12-09  Martin Baulig  <martin@home-of-linux.org>
+
+	Larger changes to the daemon:
+
+	- Dropped all the unix domain socket stuff - we don't need it for
+	connections on the local host, here we behave just like any normal
+	application.
+	- Added poptimization: use the --help parameter to get usage info
+	- Made it a real daemon, fork into background and write to syslog.
+	- It's now possible to invoke the daemon from inetd, you'll get
+	GNU_SECURE authentication in this case.
+	- Don't make this executable suid/sgid - if invoked as root it
+	sets uid/gid to SERVER_UID/SERVER_GID as defined in server_config.h
+	- Added missing features, so you can now really use this thing.
+
+1998-11-11  Martin Baulig  <martin@home-of-linux.org>
+
+	* gnuserv.c (main): Set `server->features' directly rather than
+	calling glibtop_set_parameter_l () since this function no longer
+	allows to modify the features.
+
+	* gnuserv.c, main.c: Use LIBGTOP_ENABLE_DEBUG rather than DEBUG.
+
+1998-11-01  Marc Ewing  <marc@tasmanian.redhat.com>
+
+	* Makefile.am: Added $(GLIB_LIBS) to libs.  Not sure
+	how it ever built without it.
+
+1998-10-20  Martin Baulig  <martin@home-of-linux.org>
+
+	* Makefile.am: Added a notice that this file *requires*
+ 	libtool 1.2. It may work with 1.1 as well, but that's untested.
+
+1998-10-11  Martin Baulig  <martin@home-of-linux.org>
+
+	* Makefile.am (install-exec-hook): Always run `libgtop_postinstall',
+	it's `:' if there's nothing to do since the empty string is no
+	valid shell syntax here.
+
+1998-10-01  Martin Baulig  <martin@home-of-linux.org>
+
+	* Makefile.am (install-exec-hook): Use `libgtop_postinstall'
+	here to make the server suid root or sgid kmem if required.
+
+1998-08-25  Martin Baulig  <martin@home-of-linux.org>
+
+	* daemon.h (handle_parent_connection): Added prototype.
+	* write.c, io.c: Added cast to `const void *' in calls to
+	`write' and `send' to avoid compiler warnings.
+	* gnuserv.c (handle_signal): Declared static.
+	(main): Casting return value of `getuid' to `int' in
+	debugging statement.
+
+	* ChangeLog: New file.
+

src/daemon/Makefile.am

@@ -0,0 +1,56 @@
+## You need libtool 1.2 or newer for this Makefile.am to work.
+##
+## It _may_ work with an older version of libtool, but it also may fail.
+## So if you get any undefined symbols here, please make sure you really
+## have libtool 1.2 or better before reporting this as bug.
+##
+## You'll require libtool 1.2 for other parts of GNOME anyway.
+##
+## Get ftp://ftp.gnu.org/pub/gnu/libtool-1.2.tar.gz
+## (or a newer version if it is available)
+##
+## Martin <martin@home-of-linux.org>
+##
+
+AM_CPPFLAGS			= $(LIBGTOP_CFLAGS) @AM_CPPFLAGS@ -D_BSD \
+				  -DLIBGTOP_COMPILE_SYSTEM="\"`uname -s`\"" \
+				  -DLIBGTOP_COMPILE_RELEASE="\"`uname -r`\"" \
+				  -DLIBGTOP_COMPILE_VERSION="\"`uname -v`\"" \
+				  -DLIBGTOP_COMPILE_MACHINE="\"`uname -m`\""
+
+if LIBGTOP_NEED_SERVER
+suid_sysdeps			= $(top_builddir)/sysdeps/@sysdeps_dir@/libgtop_sysdeps_suid-2.0.la
+suid_common			= $(top_builddir)/sysdeps/common/libgtop_suid_common-2.0.la
+else
+suid_sysdeps			=
+suid_common			=
+endif
+
+bin_PROGRAMS			= libgtop_daemon2 @server_programs@
+
+EXTRA_PROGRAMS			= libgtop_server2
+
+libgtop_daemon2_SOURCES		= gnuserv.c slave.c main.c io.c version.c \
+				  daemon.h server_config.h
+libgtop_daemon2_LDADD		= $(top_builddir)/lib/libgtop-2.0.la \
+				  $(top_builddir)/sysdeps/common/libgtop_common-2.0.la \
+				  $(top_builddir)/sysdeps/@sysdeps_dir@/libgtop_sysdeps-2.0.la \
+				  @sysdeps_suid_lib@ \
+				  $(suid_sysdeps) $(suid_common) \
+				  $(LIBGTOP_LIBS) \
+				  @libs_xauth@
+
+libgtop_server2_SOURCES		= server.c slave.c io.c version.c daemon.h
+libgtop_server2_LDADD		= $(top_builddir)/lib/libgtop-2.0.la \
+				  $(top_builddir)/sysdeps/common/libgtop_common-2.0.la \
+				  $(top_builddir)/sysdeps/@sysdeps_dir@/libgtop_sysdeps-2.0.la \
+				  @sysdeps_suid_lib@ \
+				  $(suid_sysdeps) $(suid_common) \
+				  $(LIBGTOP_LIBS) \
+				  @libs_xauth@
+
+EXTRA_DIST			= server_config.h.in server_config.pl
+
+install-exec-hook:
+	-@libgtop_postinstall@
+

src/daemon/Makefile.in

@@ -0,0 +1,763 @@
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+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS)
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS
+	@$(NORMAL_INSTALL)
+	$(MAKE) $(AM_MAKEFLAGS) install-exec-hook
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: install-am install-exec-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean \
+	clean-binPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-exec-hook install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-binPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+install-exec-hook:
+	-@libgtop_postinstall@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

src/daemon/daemon.h

@@ -0,0 +1,77 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef __GLIBTOP_DAEMON_H__
+#define __GLIBTOP_DAEMON_H__
+
+#include <glibtop.h>
+#include <glibtop/gnuserv.h>
+
+#include <glibtop/open.h>
+#include <glibtop/union.h>
+#include <glibtop/version.h>
+#include <glibtop/command.h>
+#include <glibtop/parameter.h>
+
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <syslog.h>
+
+G_BEGIN_DECLS
+
+/* Some don't have LOG_PERROR */
+#ifndef LOG_PERROR
+#define LOG_PERROR 0
+#endif
+
+#if defined(HAVE_GETDTABLESIZE)
+#define GET_MAX_FDS() getdtablesize()
+#else
+/* Fallthrough case - please add other #elif cases above
+   for different OS's as necessary */
+#define GET_MAX_FDS() 256
+#endif
+
+#define _offset_union(p)	((char *) &resp->u.p - (char *) resp)
+#define _offset_data(p)		_offset_union (data.p)
+
+#define MSG_BUFSZ		sizeof (struct _glibtop_ipc_message)
+#define MSG_MSGSZ		(MSG_BUFSZ - sizeof (long))
+
+void handle_parent_connection (int s);
+void handle_slave_connection (int input, int output);
+void handle_slave_command (glibtop_command *cmnd, glibtop_response *resp,
+			   const void *parameter);
+
+void do_output (int s, glibtop_response *resp, off_t offset,
+		size_t data_size, const void *data);
+int do_read (int s, void *ptr, size_t total_size);
+
+void syslog_message (int priority, const char *format, ...) G_GNUC_PRINTF(2, 3);
+void syslog_io_message (int priority, const char *format, ...) G_GNUC_PRINTF(2, 3);
+
+extern gboolean enable_debug;
+extern gboolean verbose_output;
+
+G_END_DECLS
+
+#endif

src/daemon/gnuserv.c

@@ -0,0 +1,645 @@
+/* -*-C-*-
+ * Server code for handling requests from clients and forwarding them
+ * on to the GNU Emacs process.
+ *
+ * This file is part of GNU Emacs.
+ *
+ * Copying is permitted under those conditions described by the GNU
+ * General Public License.
+ *
+ * Copyright (C) 1989 Free Software Foundation, Inc.
+ *
+ * Author: Andy Norman (ange@hplb.hpl.hp.com), based on 'etc/server.c'
+ * from the 18.52 GNU Emacs distribution.
+ *
+ * Please mail bugs and suggestions to the author at the above address.
+ */
+
+/* HISTORY
+ * 11-Nov-1990                bristor@simba
+ *    Added EOT stuff.
+ */
+
+/*
+ * This file incorporates new features added by Bob Weiner <weiner@mot.com>,
+ * Darrell Kindred <dkindred@cmu.edu> and Arup Mukherjee <arup@cmu.edu>.
+ * Please see the note at the end of the README file for details.
+ *
+ * (If gnuserv came bundled with your emacs, the README file is probably
+ * ../etc/gnuserv.README relative to the directory containing this file)
+ */
+
+#include <config.h>
+
+#include <glib/gi18n-lib.h>
+#include <glibtop.h>
+#include <glibtop/open.h>
+#include <glibtop/close.h>
+#include <glibtop/command.h>
+#include <glibtop/parameter.h>
+
+#include "server_config.h"
+
+#include <glibtop/gnuserv.h>
+
+#include <errno.h>
+#include <locale.h>
+
+#include "daemon.h"
+
+#ifdef AIX
+#include <sys/select.h>
+#endif
+
+#ifdef NEED_DECLARATION_PROGRAM_INVOCATION_NAME
+extern char *program_invocation_name, *program_invocation_short_name;
+#endif
+
+#ifndef HAVE_PROGRAM_INVOCATION_SHORT_NAME
+char *program_invocation_short_name;
+#endif
+
+#ifndef HAVE_PROGRAM_INVOCATION_NAME
+char *program_invocation_name;
+#endif
+
+
+#if !defined(INTERNET_DOMAIN_SOCKETS)
+#error "Internet Domain sockets are required"
+#endif
+
+#ifdef AUTH_MAGIC_COOKIE
+#include <X11/X.h>
+#include <X11/Xauth.h>
+
+static Xauth *server_xauth = NULL;
+
+#endif /* AUTH_MAGIC_COOKIE */
+
+gboolean enable_debug = FALSE;
+gboolean verbose_output = FALSE;
+static gboolean no_daemon = FALSE;
+static gboolean invoked_from_inetd = FALSE;
+static int changed_uid = 0;
+
+void
+syslog_message (int priority, const char *format, ...)
+{
+    va_list ap;
+    char buffer [BUFSIZ];
+
+    va_start (ap, format);
+    vsnprintf (buffer, BUFSIZ-1, format, ap);
+    va_end (ap);
+
+    syslog (priority, "%s", buffer);
+}
+
+void
+syslog_io_message (int priority, const char *format, ...)
+{
+    va_list ap;
+    char buffer [BUFSIZ];
+    char buffer2 [BUFSIZ];
+
+    va_start (ap, format);
+    vsnprintf (buffer, BUFSIZ-1, format, ap);
+    va_end (ap);
+
+    snprintf (buffer2, BUFSIZ-1, "%s: %s", buffer, g_strerror (errno));
+    syslog (priority, "%s", buffer2);
+}
+
+/*
+ * timed_read - Read with timeout.
+ */
+
+static int
+timed_read (int fd, char *buf, int max, int timeout, int one_line)
+{
+    fd_set rmask;
+    struct timeval tv;	/* = {timeout, 0}; */
+    char c = 0;
+    int nbytes = 0;
+    int r;
+
+    tv.tv_sec = timeout;
+    tv.tv_usec = 0;
+
+    FD_ZERO (&rmask);
+    FD_SET (fd, &rmask);
+
+    do {
+	r = select (fd + 1, &rmask, NULL, NULL, &tv);
+
+	if (r > 0) {
+	    if (read (fd, &c, 1) == 1) {
+		*buf++ = c;
+		++nbytes;
+	    } else {
+		syslog_io_message (LOG_WARNING, "read error on socket");
+		return -1;
+	    }
+	} else if (r == 0) {
+	    syslog_io_message (LOG_WARNING, "read timed out");
+	    return -1;
+	} else {
+	    syslog_io_message (LOG_WARNING, "error in select");
+	    return -1;
+	}
+    } while ((nbytes < max) && !(one_line && (c == '\n')));
+
+    --buf;
+    if (one_line && *buf == '\n') {
+	*buf = 0;
+    }
+    return nbytes;
+}
+
+
+/*
+ * permitted -- return whether a given host is allowed to connect to the server.
+ */
+
+static int
+permitted (u_long host_addr, int fd)
+{
+    int i;
+
+    char auth_protocol[128];
+    char buf[1024];
+    int auth_data_len;
+
+    /* Read auth protocol name */
+
+    if (timed_read (fd, auth_protocol, AUTH_NAMESZ, AUTH_TIMEOUT, 1) <= 0)
+	return FALSE;
+
+    if (enable_debug)
+	syslog_message (LOG_DEBUG,
+			"Client sent authenticatin protocol '%s'.",
+			auth_protocol);
+
+    if (strcmp (auth_protocol, DEFAUTH_NAME) &&
+	strcmp (auth_protocol, MCOOKIE_NAME)) {
+	syslog_message (LOG_WARNING,
+			"Invalid authentication protocol "
+			"'%s' from client",
+			auth_protocol);
+	return FALSE;
+    }
+
+    if (!strcmp (auth_protocol, MCOOKIE_NAME)) {
+	/*
+	 * doing magic cookie auth
+	 */
+
+	if (timed_read (fd, buf, 10, AUTH_TIMEOUT, 1) <= 0)
+	    return FALSE;
+
+	auth_data_len = atoi (buf);
+
+	if (auth_data_len < 1 || (size_t)auth_data_len > sizeof(buf)) {
+	    syslog_message(LOG_WARNING, "Invalid data length supplied by client");
+	    return FALSE;
+	}
+
+	if (timed_read (fd, buf, auth_data_len, AUTH_TIMEOUT, 0) != auth_data_len)
+	    return FALSE;
+
+#ifdef AUTH_MAGIC_COOKIE
+	if (!invoked_from_inetd && server_xauth && server_xauth->data &&
+	    !memcmp (buf, server_xauth->data, auth_data_len)) {
+	    return TRUE;
+	}
+#else
+	syslog_message (LOG_WARNING,
+			"Client tried Xauth, but server is "
+			"not compiled with Xauth");
+#endif
+
+	/*
+	 * auth failed, but allow this to fall through to the
+	 * GNU_SECURE protocol....
+	 */
+
+	if (verbose_output) {
+	    if (changed_uid || invoked_from_inetd)
+		syslog_message (LOG_WARNING,
+				"Xauth authentication not allowed, "
+				"trying GNU_SECURE ...");
+	    else
+		syslog_message (LOG_WARNING,
+				"Xauth authentication failed, "
+				"trying GNU_SECURE auth...");
+	}
+    }
+
+    /* Other auth protocols go here, and should execute only if
+     * the * auth_protocol name matches. */
+
+    /* Now, try the old GNU_SECURE stuff... */
+
+    if (enable_debug)
+	syslog_message (LOG_DEBUG, "Doing GNU_SECURE auth ...");
+
+    /* Now check the chain for that hash key */
+    for (i = 0; i < HOST_TABLE_ENTRIES; i++) {
+	if (enable_debug)
+	    syslog_message (LOG_DEBUG, "Trying %lx - %lx",
+			    host_addr, permitted_hosts [i]);
+	if (permitted_hosts [i] == 0L)
+	    return (FALSE);
+	if (host_addr == permitted_hosts [i])
+	    return (TRUE);
+    }
+
+    return (FALSE);
+}
+
+
+/*
+ * setup_table -- initialise the table of hosts allowed to contact the server,
+ * by reading from the file specified by the GNU_SECURE
+ * environment variable
+ * Put in the local machine, and, if a security file is specifed,
+ * add each host that is named in the file.
+ * Return the number of hosts added.
+ */
+
+static int
+setup_table (void)
+{
+    char hostname [HOSTNAMSZ];
+
+#ifdef AUTH_MAGIC_COOKIE
+    char screen [BUFSIZ];
+#endif
+
+    long host_addr;
+    int i, hosts = 0;
+
+    /* Make sure every entry is null */
+    for (i = 0; i < HOST_TABLE_ENTRIES; i++)
+	permitted_hosts [i] = 0;
+
+    gethostname (hostname, HOSTNAMSZ);
+
+    if ((host_addr = glibtop_internet_addr (hostname)) == -1) {
+	syslog_io_message (LOG_ERR, "Can't resolve '%s'", hostname);
+	exit (1);
+    }
+
+#ifdef AUTH_MAGIC_COOKIE
+
+    sprintf (screen, "%d", SERVER_PORT);
+
+    server_xauth = XauGetAuthByAddr
+	(FamilyInternet,
+	 sizeof (host_addr), (char *) &host_addr,
+	 strlen (screen), screen,
+	 strlen (MCOOKIE_X_NAME), MCOOKIE_X_NAME);
+    hosts++;
+
+#endif /* AUTH_MAGIC_COOKIE */
+
+    /* Resolv host names from permitted_host_names []. */
+
+    for (i = 0; i < HOST_TABLE_ENTRIES; i++) {
+	if (!permitted_host_names [i])
+	    continue;
+	if (enable_debug)
+	    syslog_message (LOG_DEBUG, "Resolving %s ...",
+			    permitted_host_names [i]);
+	permitted_hosts [i] =
+	    glibtop_internet_addr (permitted_host_names [i]);
+	if ((long) permitted_hosts [i] == -1) {
+	    syslog_io_message (LOG_ERR, "Can't resolve '%s'",
+			       permitted_host_names [i]);
+	    exit (1);
+	}
+    }
+
+    if (enable_debug)
+	for (i = 0; i < HOST_TABLE_ENTRIES; i++)
+	    syslog_message (LOG_DEBUG, "Host %s - %lx",
+			    permitted_host_names [i],
+			    permitted_hosts [i]);
+
+    hosts += HOST_TABLE_ENTRIES;
+
+    return hosts;
+}				/* setup_table */
+
+/*
+ * internet_init -- initialize server, returning an internet socket that can
+ * be listened on.
+ */
+
+static int
+internet_init (void)
+{
+    int ls;			/* socket descriptor */
+    struct sockaddr_in server;	/* for local socket address */
+
+    if (setup_table () == 0)
+	return -1;
+
+    /* clear out address structure */
+    memset ((char *) &server, 0, sizeof (struct sockaddr_in));
+
+    /* Set up address structure for the listen socket. */
+    server.sin_family = AF_INET;
+    server.sin_addr.s_addr = INADDR_ANY;
+
+    /* We use a fixed port given in the config file. */
+    server.sin_port = htons (SERVER_PORT);
+
+    if (verbose_output)
+	syslog_message (LOG_INFO, "Using port %u.", SERVER_PORT);
+
+    /* Create the listen socket. */
+    if ((ls = socket (AF_INET, SOCK_STREAM, 0)) == -1) {
+	syslog_io_message (LOG_ERR, "unable to create socket");
+	exit (1);
+    }
+
+    /* Bind the listen address to the socket. */
+    if (bind (ls, (struct sockaddr *) &server,
+	      sizeof (struct sockaddr_in)) == -1) {
+	syslog_io_message (LOG_ERR, "bind");
+	exit (1);
+    }
+
+    /* Initiate the listen on the socket so remote users * can connect.  */
+    if (listen (ls, 20) == -1) {
+	syslog_io_message (LOG_ERR, "listen");
+	exit (1);
+    }
+
+    return (ls);
+}				/* internet_init */
+
+
+/*
+ * handle_internet_request -- accept a request from a client and send the
+ * information to stdout (the gnu process).
+ */
+
+static void
+handle_internet_request (int ls)
+{
+    int s;
+    size_t addrlen = sizeof (struct sockaddr_in);
+    struct sockaddr_in peer;	/* for peer socket address */
+    pid_t pid;
+
+    memset ((char *) &peer, 0, sizeof (struct sockaddr_in));
+
+    if ((s = accept (ls, (struct sockaddr *) &peer, (void *) &addrlen)) == -1) {
+	syslog_io_message (LOG_ERR, "accept");
+	exit (1);
+    }
+
+    if (verbose_output)
+	syslog_message (LOG_INFO, "Connection was made from %s port %u.",
+			inet_ntoa (peer.sin_addr), ntohs (peer.sin_port));
+
+    /* Check that access is allowed - if not return crud to the client */
+    if (!permitted (peer.sin_addr.s_addr, s)) {
+	close (s);
+	syslog_message (LOG_CRIT, "Refused connection from %s.",
+			inet_ntoa (peer.sin_addr));
+	return;
+    }			/* if */
+
+    if (verbose_output)
+	syslog_message (LOG_INFO, "Accepted connection from %s port %u.",
+			inet_ntoa (peer.sin_addr), ntohs (peer.sin_port));
+
+    pid = fork ();
+
+    if (pid == -1) {
+	syslog_io_message (LOG_ERR, "fork failed");
+	exit (1);
+    }
+
+    if (pid) {
+	if (verbose_output)
+	    syslog_message (LOG_INFO, "Child pid is %d.", pid);
+	return;
+    }
+
+    handle_parent_connection (s);
+
+    close (s);
+
+    if (verbose_output)
+	syslog_message (LOG_INFO, "Closed connection to %s port %u.",
+			inet_ntoa (peer.sin_addr), ntohs (peer.sin_port));
+
+    _exit (0);
+}				/* handle_internet_request */
+
+static void
+handle_signal (int sig)
+{
+    if (sig == SIGCHLD)
+	return;
+
+    syslog_message (LOG_ERR, "Catched signal %d.\n", sig);
+    exit (1);
+}
+
+static const GOptionEntry options [] = {
+    { "debug", 'd', 0, G_OPTION_ARG_NONE, &enable_debug,
+      N_("Enable debugging"), NULL },
+    { "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose_output,
+      N_("Enable verbose output"), NULL },
+    { "no-daemon", 'f', 0, G_OPTION_ARG_NONE, &no_daemon,
+      N_("Don’t fork into background"), NULL },
+    { "inetd", 'i', 0, G_OPTION_ARG_NONE, &invoked_from_inetd,
+      N_("Invoked from inetd"), NULL },
+    { NULL }
+};
+
+int
+main (int argc, char **argv)
+{
+    const unsigned method = GLIBTOP_METHOD_PIPE;
+    const unsigned long features = GLIBTOP_SYSDEPS_ALL;
+    glibtop *server = glibtop_global_server;
+    GOptionContext *goption_context;
+    GError *error = NULL;
+
+    int ils = -1;		/* internet domain listen socket */
+
+    setlocale (LC_ALL, "");
+
+    /* On non-glibc systems, this is not set up for us.  */
+    if (!program_invocation_name) {
+	char *arg;
+
+	program_invocation_name = (char *) argv[0];
+	arg = strrchr (argv[0], '/');
+	program_invocation_short_name =
+	    arg ? (arg + 1) : program_invocation_name;
+    }
+
+    g_set_prgname (program_invocation_short_name);
+    goption_context = g_option_context_new (NULL);
+    g_option_context_add_main_entries (goption_context, options, NULL);
+    g_option_context_parse (goption_context, &argc, &argv, &error);
+    g_option_context_free (goption_context);
+
+    if (error != NULL) {
+        g_printerr ("%s\n", error->message);
+        g_error_free (error);
+        g_printerr (_("Run “%s --help” to see a full list of "
+                    "available command line options.\n"),
+                    program_invocation_name);
+        exit(1);
+    }
+
+    if (enable_debug)
+	verbose_output = 1;
+
+    if (no_daemon) {
+	openlog ("libgtop-daemon", LOG_PERROR | LOG_PID, LOG_LOCAL0);
+    } else {
+	openlog ("libgtop-daemon", LOG_PID, LOG_LOCAL0);
+    }
+
+    if (!no_daemon && !invoked_from_inetd) {
+	pid_t pid = fork ();
+
+	if (pid == -1) {
+	    syslog_io_message (LOG_ERR, "fork failed");
+	    exit (1);
+	} else if (pid)
+	    exit (0);
+
+	close (0);
+
+	setsid ();
+    }
+
+    glibtop_init_r (&glibtop_global_server, 0, GLIBTOP_INIT_NO_INIT);
+
+    signal (SIGCHLD, handle_signal);
+
+    /* If we are root, completely switch to SERVER_UID and
+     * SERVER_GID. Otherwise we completely drop any priviledges.
+     */
+
+    if (enable_debug)
+	syslog_message (LOG_DEBUG, "Parent ID: (%d, %d) - (%d, %d)",
+			getuid (), geteuid (), getgid (), getegid ());
+
+    if (geteuid () == 0) {
+	changed_uid = 1;
+	if (setregid (SERVER_GID, SERVER_GID)) {
+	    syslog_io_message (LOG_ERR, "setregid (SERVER_GID)");
+	    exit (1);
+	}
+	if (setreuid (SERVER_UID, SERVER_UID)) {
+	    syslog_io_message (LOG_ERR, "setreuid (SERVER_UID)");
+	    exit (1);
+	}
+    } else {
+	if (setreuid (geteuid (), geteuid ())) {
+	    syslog_io_message (LOG_ERR, "setreuid (euid)");
+	    exit (1);
+	}
+    }
+
+    if (enable_debug)
+	syslog_message (LOG_DEBUG, "Parent ID: (%d, %d) - (%d, %d)",
+			getuid (), geteuid (), getgid (), getegid ());
+
+    if (invoked_from_inetd) {
+	size_t addrlen = sizeof (struct sockaddr_in);
+	struct sockaddr_in peer;
+
+	memset ((char *) &peer, 0, sizeof (struct sockaddr_in));
+
+	if (getpeername (0, (struct sockaddr *) &peer, (void *) &addrlen)) {
+	    syslog_io_message (LOG_ERR, "getpeername");
+	    exit (1);
+	}
+
+	if (verbose_output)
+	    syslog_message (LOG_INFO, "Connection was made from %s port %u.",
+			    inet_ntoa (peer.sin_addr), ntohs (peer.sin_port));
+
+	/* Check that access is allowed - if not return crud to the client */
+	if (!permitted (peer.sin_addr.s_addr, 0)) {
+	    close (0);
+	    syslog_message (LOG_CRIT, "Refused connection from %s.",
+			    inet_ntoa (peer.sin_addr));
+	    exit (1);
+	}
+
+	handle_parent_connection (0);
+	exit (0);
+    }
+
+    /* get a internet domain socket to listen on. */
+    ils = internet_init ();
+
+    if (ils <= 0) {
+	syslog_message (LOG_ERR, "Unable to get internet domain socket.");
+	exit (1);
+    }
+
+    glibtop_set_parameter_l (server, GLIBTOP_PARAM_METHOD,
+			     &method, sizeof (method));
+
+    server->features = features;
+
+    glibtop_init_r (&server, 0, 0);
+
+    while (1) {
+	fd_set rmask;
+	int status, ret;
+
+	while ((ret = wait3 (&status, WNOHANG, NULL)) != 0) {
+	    if ((ret == -1) && (errno == ECHILD))
+		break;
+
+	    if ((ret == -1) && ((errno == EAGAIN)))
+		continue;
+	    if (ret == 0) {
+		syslog_io_message (LOG_WARNING, "wait3");
+		continue;
+	    }
+
+	    if (verbose_output)
+		syslog_message (LOG_INFO, "Child %d exited.", ret);
+	}
+
+	FD_ZERO (&rmask);
+
+	/* Only the child accepts connections from standard
+	 * input made by its parent. */
+
+	FD_SET (ils, &rmask);
+
+	if (enable_debug)
+	    syslog_message (LOG_DEBUG,
+			    "Server ready and waiting for connections.");
+
+	if (select (ils+1, &rmask, (fd_set *) NULL, (fd_set *) NULL,
+		    (struct timeval *) NULL) < 0) {
+	    if (errno == EINTR)
+		continue;
+	    syslog_io_message (LOG_ERR, "select");
+	    exit (1);
+	}
+
+	if (FD_ISSET (ils, &rmask))
+	    handle_internet_request (ils);
+    }
+
+    return 0;
+}

src/daemon/io.c

@@ -0,0 +1,92 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+#include "daemon.h"
+#include <glibtop/error.h>
+
+void
+do_output (int s, glibtop_response *resp, off_t offset,
+	   size_t data_size, const void *data)
+{
+	glibtop_debug ("Really writing %d bytes at offset %lu.",
+		 sizeof (glibtop_response), offset);
+
+	resp->offset = offset;
+	resp->data_size = data_size;
+
+	if (s == 0) {
+		if (write (1, (const void *) resp, sizeof (glibtop_response)) < 0)
+			glibtop_warn_io ("write");
+	} else {
+		if (send (s, (const void *) resp, sizeof (glibtop_response), 0) < 0)
+			glibtop_warn_io ("send");
+	}
+
+	if (resp->data_size) {
+		glibtop_debug ("Writing %d bytes of data.", resp->data_size);
+
+		if (s == 0) {
+			if (write (1, data, resp->data_size) < 0)
+				glibtop_warn_io ("write");
+		} else {
+			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;
+	char *tmp_ptr;
+	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; */
+		tmp_ptr = ptr;
+		tmp_ptr += nread;
+		ptr = tmp_ptr;
+
+		glibtop_debug ("READ (%d): %d - %d - %d",
+			 nread, already_read, remaining, total_size);
+	}
+
+	return already_read;
+}

src/daemon/main.c

@@ -0,0 +1,248 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+#include "daemon.h"
+
+#ifdef LIBGTOP_ENABLE_DEBUG
+#ifndef PARENT_DEBUG
+#define PARENT_DEBUG 1
+#endif
+#endif
+
+void
+handle_parent_connection (int s)
+{
+    glibtop *server = glibtop_global_server;
+    glibtop_response _resp, *resp = &_resp;
+    glibtop_command _cmnd, *cmnd = &_cmnd;
+    glibtop_mountentry *mount_list;
+    char parameter [BUFSIZ];
+    unsigned short device;
+    gint64 *param_ptr;
+    int all_fs;
+    pid_t pid;
+    void *ptr;
+
+    glibtop_send_version (glibtop_global_server, s);
+
+    if (verbose_output)
+	syslog_message (LOG_INFO, "Parent features = %lu",
+			glibtop_server_features);
+
+    if (enable_debug)
+	syslog_message (LOG_DEBUG, "SIZEOF: %u - %u - %u - %u - %u - %u",
+			sizeof (glibtop_command), sizeof (glibtop_response),
+			sizeof (glibtop_mountentry), sizeof (glibtop_union),
+			sizeof (glibtop_sysdeps),
+			sizeof (glibtop_response_union));
+
+    while (do_read (s, cmnd, sizeof (glibtop_command))) {
+	if (enable_debug)
+	    syslog_message (LOG_DEBUG,
+			    "Parent (%d) received command %llu from client.",
+			    getpid (), cmnd->command);
+
+	if (cmnd->data_size >= BUFSIZ) {
+	    syslog_message (LOG_WARNING,
+			    "Client sent %llu bytes, but buffer is %lu",
+			    cmnd->data_size, (unsigned long)BUFSIZ);
+	    return;
+	}
+
+	memset (resp, 0, sizeof (glibtop_response));
+
+	memset (parameter, 0, sizeof (parameter));
+
+	if (cmnd->data_size) {
+	    if (enable_debug)
+		syslog_message (LOG_DEBUG, "Client has %llu bytes of data.",
+				cmnd->data_size);
+
+	    do_read (s, parameter, cmnd->data_size);
+
+	} else if (cmnd->size) {
+	    memcpy (parameter, cmnd->parameter, cmnd->size);
+	}
+
+	switch (cmnd->command) {
+	case GLIBTOP_CMND_QUIT:
+	    do_output (s, resp, 0, 0, NULL);
+	    return;
+	case GLIBTOP_CMND_SYSDEPS:
+	    memcpy (&resp->u.sysdeps, &server->sysdeps,
+		    sizeof (glibtop_sysdeps));
+	    resp->u.sysdeps.features = GLIBTOP_SYSDEPS_ALL;
+	    do_output (s, resp, _offset_union (sysdeps), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_CPU:
+	    glibtop_get_cpu_l (server, &resp->u.data.cpu);
+	    do_output (s, resp, _offset_data (cpu), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_MEM:
+	    glibtop_get_mem_l (server, &resp->u.data.mem);
+	    do_output (s, resp, _offset_data (mem), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_SWAP:
+	    glibtop_get_swap_l (server, &resp->u.data.swap);
+	    do_output (s, resp, _offset_data (swap), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_UPTIME:
+	    glibtop_get_uptime_l (server, &resp->u.data.uptime);
+	    do_output (s, resp, _offset_data (uptime), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_LOADAVG:
+	    glibtop_get_loadavg_l (server, &resp->u.data.loadavg);
+	    do_output (s, resp, _offset_data (loadavg), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_SHM_LIMITS:
+	    glibtop_get_shm_limits_l
+		(server, &resp->u.data.shm_limits);
+	    do_output (s, resp, _offset_data (shm_limits), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_MSG_LIMITS:
+	    glibtop_get_msg_limits_l
+		(server, &resp->u.data.msg_limits);
+	    do_output (s, resp, _offset_data (msg_limits), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_SEM_LIMITS:
+	    glibtop_get_sem_limits_l
+		(server, &resp->u.data.sem_limits);
+	    do_output (s, resp, _offset_data (sem_limits), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROCLIST:
+	    param_ptr = (gint64 *) parameter;
+	    ptr = glibtop_get_proclist_l (server,
+					  &resp->u.data.proclist,
+					  param_ptr [0],
+					  param_ptr [1]);
+	    do_output (s, resp, _offset_data (proclist),
+		       resp->u.data.proclist.total, ptr);
+	    g_free (ptr);
+	    break;
+	case GLIBTOP_CMND_PROC_MAP:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    ptr = glibtop_get_proc_map_l (server,
+					  &resp->u.data.proc_map,
+					  pid);
+	    do_output (s, resp, _offset_data (proc_map),
+		       resp->u.data.proc_map.total, ptr);
+	    g_free (ptr);
+	    break;
+
+	case GLIBTOP_CMND_PROC_WD:
+		/* FIXME */
+	    break;
+
+	case GLIBTOP_CMND_NETLIST:
+		/* FIXME */
+	    break;
+
+	case GLIBTOP_CMND_PROC_ARGS:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    ptr = glibtop_get_proc_args_l (server,
+					   &resp->u.data.proc_args,
+					   pid, 0);
+	    do_output (s, resp, _offset_data (proc_args),
+		       ptr ? resp->u.data.proc_args.size+1 : 0, ptr);
+	    g_free (ptr);
+	    break;
+	case GLIBTOP_CMND_PROC_STATE:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_state_l
+		(server, &resp->u.data.proc_state, pid);
+	    do_output (s, resp, _offset_data (proc_state), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROC_UID:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_uid_l
+		(server, &resp->u.data.proc_uid, pid);
+	    do_output (s, resp, _offset_data (proc_uid), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROC_MEM:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_mem_l
+		(server, &resp->u.data.proc_mem, pid);
+	    do_output (s, resp, _offset_data (proc_mem), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROC_TIME:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_time_l
+		(server, &resp->u.data.proc_time, pid);
+	    do_output (s, resp, _offset_data (proc_time), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROC_SIGNAL:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_signal_l
+		(server, &resp->u.data.proc_signal, pid);
+	    do_output (s, resp, _offset_data (proc_signal), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROC_KERNEL:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_kernel_l
+		(server, &resp->u.data.proc_kernel, pid);
+	    do_output (s, resp, _offset_data (proc_kernel), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_PROC_SEGMENT:
+	    memcpy (&pid, parameter, sizeof (pid_t));
+	    glibtop_get_proc_segment_l
+		(server, &resp->u.data.proc_segment, pid);
+	    do_output (s, resp, _offset_data (proc_segment), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_MOUNTLIST:
+	    memcpy (&all_fs, parameter, sizeof (all_fs));
+	    mount_list = glibtop_get_mountlist_l
+		(server, &resp->u.data.mountlist, all_fs);
+	    do_output (s, resp, _offset_data (mountlist),
+		       resp->u.data.mountlist.total, mount_list);
+	    g_free (mount_list);
+	    break;
+	case GLIBTOP_CMND_FSUSAGE:
+	    glibtop_get_fsusage_l
+		(server, &resp->u.data.fsusage, parameter);
+	    do_output (s, resp, _offset_data (fsusage),
+		       0, NULL);
+	    break;
+    case GLIBTOP_CMND_PROC_IO:
+	    glibtop_get_proc_io_l
+		(server, &resp->u.data.proc_io, parameter);
+	    do_output (s, resp, _offset_data (proc_io),
+		       0, NULL);
+	    break;
+	case GLIBTOP_CMND_PPP:
+	    memcpy (&device, parameter, sizeof (device));
+	    glibtop_get_ppp_l
+		(server, &resp->u.data.ppp, device);
+	    do_output (s, resp, _offset_data (ppp), 0, NULL);
+	    break;
+	case GLIBTOP_CMND_NETLOAD:
+	    glibtop_get_netload_l
+		(server, &resp->u.data.netload, parameter);
+	    do_output (s, resp, _offset_data (netload),
+		       0, NULL);
+	    break;
+	default:
+	    syslog_message (LOG_ERR, "Parent received unknown command %llu.",
+			    cmnd->command);
+	    break;
+	}
+    }
+}

src/daemon/server.c

@@ -0,0 +1,96 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+#include "daemon.h"
+
+#include <glibtop.h>
+#include <glibtop/union.h>
+#include <glibtop/sysdeps.h>
+#include <glibtop/error.h>
+#include <glibtop/machine.h>
+
+#include <sys/utsname.h>
+
+#include <fcntl.h>
+#include <locale.h>
+
+int
+main(int argc, char *argv[])
+{
+	struct utsname uts;
+	int uid, euid, gid, egid;
+
+	/* !!! WE ARE ROOT HERE - CHANGE WITH CAUTION !!! */
+
+	uid = getuid (); euid = geteuid ();
+	gid = getgid (); egid = getegid ();
+
+	glibtop_debug ("uid=%d euid=%d gid=%d egid=%d", getuid(), geteuid(), getgid(), getegid());
+
+	if (uname (&uts) < 0) _exit (1);
+
+#ifdef _AIX
+	/*
+	 * [FIXME]: should be in sysdeps part ?
+	 */
+
+	if ((strcmp (uts.sysname, LIBGTOP_COMPILE_SYSTEM) != 0) ||
+	    ((atol(uts.version) < atol(LIBGTOP_COMPILE_VERSION)) &&
+	     (atol(uts.release) < atol(LIBGTOP_COMPILE_RELEASE))) ) {
+		fprintf (stderr, "Can only run on %s %s.%s and upper\n",
+			 LIBGTOP_COMPILE_SYSTEM,
+			 LIBGTOP_COMPILE_VERSION,
+			 LIBGTOP_COMPILE_RELEASE);
+		_exit (1);
+	}
+#else
+	if (strcmp (uts.sysname, LIBGTOP_COMPILE_SYSTEM) ||
+	    strcmp (uts.release, LIBGTOP_COMPILE_RELEASE) ||
+	    strcmp (uts.machine, LIBGTOP_COMPILE_MACHINE)) {
+		fprintf (stderr, "This libgtop was compiled on %s %s %s\n",
+			 LIBGTOP_COMPILE_SYSTEM,
+			 LIBGTOP_COMPILE_RELEASE,
+			 LIBGTOP_COMPILE_MACHINE);
+                fprintf (stderr, "If you see strange problems caused by it,\n");
+                fprintf (stderr, "you should recompile libgtop and dependent "
+                         "applications.\n");
+	}
+#endif
+
+	glibtop_machine_new (glibtop_global_server);
+
+	glibtop_init_p (glibtop_global_server, 0, 0);
+
+	glibtop_debug ("uid=%d euid=%d gid=%d egid=%d", getuid(), geteuid(), getgid(), getegid());
+
+	if (setreuid (euid, uid)) _exit (1);
+
+	if (setregid (egid, gid)) _exit (1);
+
+	glibtop_debug ("uid=%d euid=%d gid=%d egid=%d", getuid(), geteuid(), getgid(), getegid());
+
+	/* !!! END OF SUID ROOT PART !!! */
+
+	handle_slave_connection (0, 0);
+
+	_exit (0);
+}

src/daemon/server_config.h

@@ -0,0 +1,11 @@
+#define SERVER_PORT		42800
+
+#define SERVER_UID		99
+#define SERVER_GID		99
+
+#define HOST_TABLE_ENTRIES	1
+
+const char *permitted_host_names [HOST_TABLE_ENTRIES] =
+{ NULL };
+
+unsigned long permitted_hosts [HOST_TABLE_ENTRIES];

src/daemon/server_config.h.in

@@ -0,0 +1,44 @@
+/* -*-c-*- */
+
+/* This is a sample config file.
+ *
+ * Copy this file to 'server_config.h' and edit it to fix your needs !
+ *
+ * You can also use the 'server_config.pl' script to create 'server_config.h'.
+ *
+ */
+
+#define SERVER_PORT		42800	/* Port the server should listen on. */
+
+/* NOTE: On RedHat 5.1 nobody is UID 99 and GID 99.
+ *
+ * The 'server_config.pl' script will use the real UID and GID of 'nobody'
+ * on your system as default.
+ *
+ * NOTE: This only works if the server is started as root or SUID to root.
+ */
+
+#define SERVER_UID		99	/* User ID the server should run as. */
+#define SERVER_GID		99	/* Group ID the server should run as. */
+
+#define HOST_TABLE_ENTRIES	1	/* Number of entries in the host table. */
+
+/* List of hosts that should be authorized to connect to the server.
+ *
+ * SECURITY WARNING:
+ *   Enabling access for a particular hosts means the ALL USERS on this host
+ *   will be allowed to connect to the server !
+ *
+ *   If you want security, let this table empty and use the 'xauth' method
+ *   instead.
+ *
+ *   Look at the manpage of gnuserv (1) as shipped with GNU Emacs for more 
+ *   details about security. The server uses the same security mechanisms
+ *   like gnuserv from XEmacs 20.3.
+ */
+
+const char *permitted_host_names [HOST_TABLE_ENTRIES] =
+{ NULL };
+
+unsigned long permitted_hosts [HOST_TABLE_ENTRIES];
+

src/daemon/server_config.pl

@@ -0,0 +1,111 @@
+#!/usr/bin/perl -w
+
+require 5.004;
+use strict;
+
+print "Enter port the server should listen on [42800]: ";
+
+my $port = <stdin>; chop $port;
+$port = 42800 unless $port =~ /^\d+$/;
+
+print "\nUser name or UID to run as [nobody]: ";
+
+my $user = <stdin>; chop $user; $user = 'nobody' if $user eq '';
+
+my ($login, $pass, $uid, $gid);
+
+unless ($user =~ /^\d+$/) {
+    ($login, $pass, $uid, $gid) = getpwnam ($user) or
+	die "User '$user' not in passwd file.";
+}
+
+my $g_default = (defined $gid) ? $gid : 'nogroup';
+
+print "Group name or GID to run as [$g_default]: ";
+
+my $group = <stdin>; chop $group; $group = $g_default if $group eq '';
+
+unless ($group =~ /^\d+$/) {
+    $gid = getgrnam ($group) or
+	die "Group '$group' not in group file.";
+}
+
+print "\nEnter list of hosts which should be authorized to";
+print "\nconnect to the server (terminate with a blank line):\n\n";
+
+print "SECURITY WARNING:\n";
+print "  Enabling access for a particular hosts means the ALL USERS on this host will\n";
+print "  be allowed to connect to the server !\n\n";
+
+print "  If you want security, let this table empty and use the 'xauth' method instead.\n";
+print "  Look at the manpage of gnuserv (1) as shipped with GNU Emacs for more details\n";
+print "  about security. The server uses the same security mechanisms like gnuserv from\n";
+print "  XEmacs 20.3\n\n";
+
+my @hosts = ();
+my @host_addrs = ();
+my @host_names = ();
+
+while (1) {
+    print "Host: ";
+
+    my $host = <stdin>; chop $host; 
+    last if $host eq '';
+
+    my ($name,$aliases,$addrtype,$length,@addrs) = gethostbyname ($host) or
+	die "gethostbyname (): Can't resolve '$host'";
+    
+    my ($a,$b,$c,$d) = unpack('C4',$addrs[0]);
+
+    push @hosts, sprintf ("0x%02X%02X%02X%02X", $d, $c, $b, $a);
+    push @host_addrs, sprintf ("%d.%d.%d.%d", $a, $b, $c, $d);
+    push @host_names, $name;
+};
+
+print "\n";
+print "This is your config:\n";
+print "====================\n\n"; 
+
+printf qq[%-30s: %d\n\n], 'Port', $port;
+printf qq[%-30s: %d\n], 'UID', $uid;
+printf qq[%-30s: %d\n\n], 'GID', $gid;
+
+foreach (0..$#hosts) {
+    printf qq[%-30s (%s - %s)\n], $host_names[$_], $hosts[$_], $host_addrs [$_];
+}
+
+print "\n";
+
+print "Accept? (yes/no) ";
+
+my $accept = <stdin>; chop $accept;
+
+exit unless $accept eq 'yes';
+
+print "\n";
+
+open CONFIG, "> server_config.h" or
+    die "open (server_config.h): $!";
+select CONFIG;
+
+printf qq[\#define SERVER_PORT\t\t%d\n\n], $port;
+
+printf qq[\#define SERVER_UID\t\t%d\n], $uid;
+printf qq[\#define SERVER_GID\t\t%d\n\n], $gid;
+
+printf qq[\#define HOST_TABLE_ENTRIES\t%d\n\n], $#hosts + 1;
+
+foreach (@host_names) {
+    $_ = qq["$_"];
+}
+
+printf qq[const char *permitted_host_names [HOST_TABLE_ENTRIES] = \n];
+printf qq[{ %s };\n\n], join (', ', @host_names);
+
+printf qq[unsigned long permitted_hosts [HOST_TABLE_ENTRIES];\n];
+
+close CONFIG;
+
+select STDOUT;
+
+print "Your config has successfully been written to 'server_config.h'.\n";

src/daemon/slave.c

@@ -0,0 +1,262 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+#include "daemon.h"
+#include <glibtop/error.h>
+
+void
+handle_slave_connection (int input, int output)
+{
+	glibtop *server G_GNUC_UNUSED = glibtop_global_server;
+	const void *ptr G_GNUC_UNUSED;
+
+	unsigned short max_len G_GNUC_UNUSED;
+	pid_t pid G_GNUC_UNUSED;
+	gint64 proc_which G_GNUC_UNUSED;
+	gint64 proc_arg G_GNUC_UNUSED;
+
+	glibtop_response _resp, *resp = &_resp;
+	glibtop_command _cmnd, *cmnd = &_cmnd;
+	char parameter [BUFSIZ];
+
+	glibtop_send_version (glibtop_global_server, output);
+
+	while (do_read (input, cmnd, sizeof (glibtop_command))) {
+		glibtop_debug ("Slave %d received command "
+			 "%llu from client.", getpid (), cmnd->command);
+
+		if (cmnd->data_size >= BUFSIZ)
+			glibtop_error ("Client sent %llu bytes, "
+				       "but buffer is %lu",
+				       cmnd->size, (unsigned long)BUFSIZ);
+
+		memset (resp, 0, sizeof (glibtop_response));
+
+		memset (parameter, 0, sizeof (parameter));
+
+		if (cmnd->data_size) {
+			glibtop_debug ("Client has %llu bytes of data.",
+				 cmnd->data_size);
+
+			do_read (input, parameter, cmnd->data_size);
+
+		} else if (cmnd->size) {
+			memcpy (parameter, cmnd->parameter, cmnd->size);
+		}
+
+		switch (cmnd->command) {
+		case GLIBTOP_CMND_QUIT:
+			do_output (output, resp, 0, 0, NULL);
+			return;
+#if GLIBTOP_SUID_PROCLIST
+		case GLIBTOP_CMND_PROCLIST:
+			memcpy(&proc_which, parameter, sizeof proc_which);
+			memcpy(&proc_arg, parameter + sizeof proc_which, sizeof proc_arg);
+			ptr = glibtop_get_proclist_p
+				(server, &resp->u.data.proclist,
+				 proc_which, proc_arg);
+			do_output (output, resp, _offset_data (proclist),
+				   resp->u.data.proclist.total, ptr);
+			g_free (ptr);
+			break;
+#endif
+#if GLIBTOP_SUID_PROC_ARGS
+		case GLIBTOP_CMND_PROC_ARGS:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			memcpy (&max_len, parameter + sizeof (pid_t),
+				sizeof (max_len));
+			ptr = glibtop_get_proc_args_p (server,
+						       &resp->u.data.proc_args,
+						       pid, max_len);
+			do_output (output, resp, _offset_data (proc_args),
+				   ptr ? resp->u.data.proc_args.size+1 : 0,
+				   ptr);
+			g_free (ptr);
+			break;
+#endif
+#if GLIBTOP_SUID_PROC_MAP
+		case GLIBTOP_CMND_PROC_MAP:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			ptr = glibtop_get_proc_map_p (server,
+						      &resp->u.data.proc_map,
+						      pid);
+			do_output (output, resp, _offset_data (proc_map),
+				   resp->u.data.proc_map.total, ptr);
+			g_free (ptr);
+			break;
+#endif
+		default:
+			handle_slave_command (cmnd, resp, parameter);
+			do_output (output, resp, resp->offset, 0, NULL);
+			break;
+		}
+	}
+}
+
+void
+handle_slave_command (glibtop_command *cmnd, glibtop_response *resp,
+		      const void *parameter)
+{
+	glibtop *server = glibtop_global_server;
+	unsigned device G_GNUC_UNUSED;
+	pid_t pid G_GNUC_UNUSED;
+
+	switch (cmnd->command) {
+	case GLIBTOP_CMND_SYSDEPS:
+		memcpy (&resp->u.sysdeps, &server->sysdeps,
+			sizeof (glibtop_sysdeps));
+		resp->u.sysdeps.features = glibtop_server_features;
+		resp->u.sysdeps.flags = glibtop_server_features |
+		  (1L << GLIBTOP_SYSDEPS_FEATURES);
+		resp->offset = _offset_union (sysdeps);
+		break;
+#if GLIBTOP_SUID_CPU
+	case GLIBTOP_CMND_CPU:
+		glibtop_get_cpu_p (server, &resp->u.data.cpu);
+		resp->offset = _offset_data (cpu);
+		break;
+#endif
+#if GLIBTOP_SUID_MEM
+	case GLIBTOP_CMND_MEM:
+		glibtop_get_mem_p (server, &resp->u.data.mem);
+		resp->offset = _offset_data (mem);
+		break;
+#endif
+#if GLIBTOP_SUID_SWAP
+	case GLIBTOP_CMND_SWAP:
+		glibtop_get_swap_p (server, &resp->u.data.swap);
+		resp->offset = _offset_data (swap);
+		break;
+#endif
+#if GLIBTOP_SUID_UPTIME
+	case GLIBTOP_CMND_UPTIME:
+		glibtop_get_uptime_p (server, &resp->u.data.uptime);
+		resp->offset = _offset_data (uptime);
+		break;
+#endif
+#if GLIBTOP_SUID_LOADAVG
+	case GLIBTOP_CMND_LOADAVG:
+		glibtop_get_loadavg_p (server, &resp->u.data.loadavg);
+		resp->offset = _offset_data (loadavg);
+		break;
+#endif
+#if GLIBTOP_SUID_SHM_LIMITS
+	case GLIBTOP_CMND_SHM_LIMITS:
+		glibtop_get_shm_limits_p (server, &resp->u.data.shm_limits);
+		resp->offset = _offset_data (shm_limits);
+		break;
+#endif
+#if GLIBTOP_SUID_MSG_LIMITS
+	case GLIBTOP_CMND_MSG_LIMITS:
+		glibtop_get_msg_limits_p (server, &resp->u.data.msg_limits);
+		resp->offset = _offset_data (msg_limits);
+		break;
+#endif
+#if GLIBTOP_SUID_SEM_LIMITS
+	case GLIBTOP_CMND_SEM_LIMITS:
+		glibtop_get_sem_limits_p (server, &resp->u.data.sem_limits);
+		resp->offset = _offset_data (sem_limits);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_STATE
+	case GLIBTOP_CMND_PROC_STATE:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_state_p
+			(server, &resp->u.data.proc_state, pid);
+		resp->offset = _offset_data (proc_state);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_UID
+	case GLIBTOP_CMND_PROC_UID:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_uid_p
+			(server, &resp->u.data.proc_uid, pid);
+		resp->offset = _offset_data (proc_uid);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_MEM
+	case GLIBTOP_CMND_PROC_MEM:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_mem_p
+			(server, &resp->u.data.proc_mem, pid);
+		resp->offset = _offset_data (proc_mem);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_TIME
+	case GLIBTOP_CMND_PROC_TIME:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_time_p
+			(server, &resp->u.data.proc_time, pid);
+		resp->offset = _offset_data (proc_time);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_IO
+	case GLIBTOP_CMND_PROC_IO:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_io_p
+			(server, &resp->u.data.proc_io, pid);
+		resp->offset = _offset_data (proc_time);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_SIGNAL
+	case GLIBTOP_CMND_PROC_SIGNAL:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_signal_p
+			(server, &resp->u.data.proc_signal, pid);
+		resp->offset = _offset_data (proc_signal);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_KERNEL
+	case GLIBTOP_CMND_PROC_KERNEL:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_kernel_p
+			(server, &resp->u.data.proc_kernel, pid);
+		resp->offset = _offset_data (proc_kernel);
+		break;
+#endif
+#if GLIBTOP_SUID_PROC_SEGMENT
+	case GLIBTOP_CMND_PROC_SEGMENT:
+		memcpy (&pid, parameter, sizeof (pid_t));
+		glibtop_get_proc_segment_p
+			(server, &resp->u.data.proc_segment, pid);
+		resp->offset = _offset_data (proc_segment);
+		break;
+#endif
+#if GLIBTOP_SUID_NETLOAD
+	case GLIBTOP_CMND_NETLOAD:
+		glibtop_get_netload_p (server, &resp->u.data.netload, parameter);
+		resp->offset = _offset_data (netload);
+		break;
+#endif
+#if GLIBTOP_SUID_PPP
+	case GLIBTOP_CMND_PPP:
+		memcpy (&device, parameter, sizeof (unsigned short));
+		glibtop_get_ppp_p (server, &resp->u.data.ppp, device);
+		resp->offset = _offset_data (ppp);
+		break;
+#endif
+	default:
+		glibtop_error ("Child received unknown command %llu",
+			       cmnd->command);
+		break;
+	}
+}

src/daemon/version.c

@@ -0,0 +1,62 @@
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+#include <glibtop.h>
+#include <glibtop/error.h>
+#include <glibtop/version.h>
+#include <glibtop/union.h>
+#include <glibtop/command.h>
+
+
+void
+glibtop_send_version (glibtop *server, int fd)
+{
+	char buffer [BUFSIZ];
+	size_t size;
+
+	sprintf (buffer, LIBGTOP_VERSION_STRING,
+		 LIBGTOP_VERSION, LIBGTOP_SERVER_VERSION,
+		 (unsigned) sizeof (glibtop_command),
+		 (unsigned) sizeof (glibtop_response),
+		 (unsigned) sizeof (glibtop_union),
+		 (unsigned) sizeof (glibtop_sysdeps));
+
+	size = strlen (buffer) + 1;
+
+	glibtop_debug ("SERVER ID: |%s|", buffer);
+
+	if (fd == 0) {
+		if (write (1, (const void *) &size, sizeof (size)) < 0)
+			glibtop_warn_io_r (server, "write");
+	} else {
+		if (send (fd, (const void *) &size, sizeof (size), 0) < 0)
+			glibtop_warn_io_r (server, "send");
+	}
+
+	if (fd == 0) {
+		if (write (1, (const void *) buffer, size) < 0)
+			glibtop_warn_io_r (server, "write");
+	} else {
+		if (send (fd, (const void *) buffer, size, 0) < 0)
+			glibtop_warn_io_r (server, "send");
+	}
+}