Initial revision

7 files changed, 342 insertions, 0 deletions

diff --git a/src/.cvsignore b/src/.cvsignore
new file mode 100644
index 00000000..282522db
--- /dev/null
+++ b/src/.cvsignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 00000000..b0e22324
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS			= server
diff --git a/src/server/.cvsignore b/src/server/.cvsignore
new file mode 100644
index 00000000..2164d8f4
--- /dev/null
+++ b/src/server/.cvsignore
@@ -0,0 +1,5 @@
+.deps
+.libs
+Makefile
+Makefile.in
+gtop_server
diff --git a/src/server/Makefile.am b/src/server/Makefile.am
new file mode 100644
index 00000000..6fe258f4
--- /dev/null
+++ b/src/server/Makefile.am
@@ -0,0 +1,14 @@
+LINK				= $(LIBTOOL) --mode=link $(CC) $(CFLAGS) $(LDFLAGS) -o $@
+
+INCLUDES			= @GTOP_INCS@
+
+CFLAGS				= -Wall -W @CFLAGS@
+
+bin_PROGRAMS			= gtop_server
+
+gtop_server_SOURCES		= main.c output.c version.c
+gtop_server_LDADD		= $(top_builddir)/sysdeps/common/libgtop_common.la \
+				  $(top_builddir)/sysdeps/@sysdeps_dir@/libgtop_sysdeps.la \
+				  @INTLLIBS@ @LIBSUPPORT@
+gtop_server_LDFLAGS		= -static
+
diff --git a/src/server/main.c b/src/server/main.c
new file mode 100644
index 00000000..93332f12
--- /dev/null
+++ b/src/server/main.c
@@ -0,0 +1,258 @@
+/* $Id$ */
+
+/* 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 <glibtop/command.h>
+#include <glibtop/version.h>
+#include <glibtop/xmalloc.h>
+#include <glibtop/union.h>
+#include <glibtop/open.h>
+
+#include <fcntl.h>
+
+#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
+
+int main(int argc, char *argv[])
+{
+	pid_t pid;
+	int fd, max_fd, nread;
+	size_t size, dsize;
+	char parameter [BUFSIZ];
+	glibtop_union data;
+	glibtop_command cmnd;
+	glibtop_sysdeps sysdeps;
+	glibtop server;
+	void *ptr;
+
+	/* !!! WE ARE ROOT HERE - CHANGE WITH CAUTION !!! */
+
+	int uid, euid, gid, egid;
+
+	uid = getuid (); euid = geteuid ();
+	gid = getgid (); egid = getegid ();
+
+	if (setreuid (euid, uid)) _exit (1);
+
+	if (setregid (egid, gid)) _exit (1);
+
+	/* !!! END OF SUID ROOT PART !!! */
+
+	/* For security reasons, we temporarily drop our priviledges
+	 * before doing the gettext stuff. */
+
+	setlocale (LC_ALL, "");
+	bindtextdomain (PACKAGE, GTOPLOCALEDIR);
+	textdomain (PACKAGE);
+
+	glibtop_version ();
+
+	/* !!! WE ARE ROOT HERE - CHANGE WITH CAUTION !!! */
+
+	setreuid (uid, euid); setreuid (gid, egid);
+	
+	glibtop_open (&server, argv [0]);
+
+	if (setreuid (euid, uid)) _exit (1);
+
+	if (setregid (egid, gid)) _exit (1);
+
+	/* !!! END OF SUID ROOT PART !!! */
+
+	/* close all file descriptors except ones used by the pipes (0 and 1). */
+	max_fd = GET_MAX_FDS();
+	for(fd = 3 /* The first fd after the pipes */; fd < max_fd; fd++)
+		close(fd);
+	
+	while(1) {
+		/* block on read from client */
+		/* fprintf (stderr, "waiting for input ...\n"); */
+		nread = read (0, &size, sizeof (size_t));
+
+		/* will return 0 if parent exits. */
+
+		if (nread == 0)
+			_exit(0);
+
+		if (nread != sizeof (size_t))
+			_exit(1);
+
+		if (size != sizeof (glibtop_command))
+			_exit(2);
+
+		nread = read (0, &cmnd, size);
+		
+		/* will return 0 if parent exits. */
+
+		if (nread == 0)
+			_exit(0);
+		
+		if (nread < 0)
+			_exit(1);
+
+		nread = read (0, &dsize, sizeof (size_t));
+
+		/* will return 0 if parent exits. */
+
+		if (nread == 0)
+			_exit(0);
+		
+		if (nread < 0)
+			_exit(1);
+
+		if (dsize >= BUFSIZ)
+			_exit(3);
+
+		memset (parameter, 0, sizeof (parameter));
+
+		if (dsize) {
+			nread = read (0, parameter, dsize);
+		
+			/* will return 0 if parent exits. */
+
+			if (nread == 0)
+				_exit(0);
+		
+			if (nread < 0)
+				_exit(1);
+		}
+
+		switch (cmnd.command) {
+		case GLIBTOP_CMND_SYSDEPS:
+			glibtop_get_sysdeps__r (&server, &sysdeps);
+			glibtop_output (sizeof (glibtop_sysdeps), &sysdeps);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_CPU:
+			glibtop_get_cpu__r (&server, &data.cpu);
+			glibtop_output (sizeof (glibtop_cpu), &data.cpu);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_MEM:
+			glibtop_get_mem__r (&server, &data.mem);
+			glibtop_output (sizeof (glibtop_mem), &data.mem);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_SWAP:
+			glibtop_get_swap__r (&server, &data.swap);
+			glibtop_output (sizeof (glibtop_swap), &data.swap);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_UPTIME:
+			glibtop_get_uptime__r (&server, &data.uptime);
+			glibtop_output (sizeof (glibtop_uptime), &data.uptime);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_LOADAVG:
+			glibtop_get_loadavg__r (&server, &data.loadavg);
+			glibtop_output (sizeof (glibtop_loadavg), &data.loadavg);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_SHM_LIMITS:
+			glibtop_get_shm_limits__r (&server, &data.shm_limits);
+			glibtop_output (sizeof (glibtop_shm_limits),
+					&data.shm_limits);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_MSG_LIMITS:
+			glibtop_get_msg_limits__r (&server, &data.msg_limits);
+			glibtop_output (sizeof (glibtop_msg_limits),
+					&data.msg_limits);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_SEM_LIMITS:
+			glibtop_get_sem_limits__r (&server, &data.sem_limits);
+			glibtop_output (sizeof (glibtop_sem_limits),
+					&data.sem_limits);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROCLIST:
+			ptr = glibtop_get_proclist__r (&server, &data.proclist);
+			glibtop_output (sizeof (glibtop_proclist),
+					&data.proclist);
+			glibtop_output (data.proclist.total, ptr);
+			glibtop_free__r (&server, ptr);
+			break;
+		case GLIBTOP_CMND_PROC_STATE:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_state__r
+				(&server, &data.proc_state, pid);
+			glibtop_output (sizeof (glibtop_proc_state),
+					&data.proc_state);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROC_UID:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_uid__r
+				(&server, &data.proc_uid, pid);
+			glibtop_output (sizeof (glibtop_proc_uid),
+					&data.proc_uid);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROC_MEM:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_mem__r
+				(&server, &data.proc_mem, pid);
+			glibtop_output (sizeof (glibtop_proc_mem),
+					&data.proc_mem);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROC_TIME:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_time__r
+				(&server, &data.proc_time, pid);
+			glibtop_output (sizeof (glibtop_proc_time),
+					&data.proc_time);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROC_SIGNAL:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_signal__r
+				(&server, &data.proc_signal, pid);
+			glibtop_output (sizeof (glibtop_proc_signal),
+					&data.proc_signal);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROC_KERNEL:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_kernel__r
+				(&server, &data.proc_kernel, pid);
+			glibtop_output (sizeof (glibtop_proc_kernel),
+					&data.proc_kernel);
+			glibtop_output (0, NULL);
+			break;
+		case GLIBTOP_CMND_PROC_SEGMENT:
+			memcpy (&pid, parameter, sizeof (pid_t));
+			glibtop_get_proc_segment__r
+				(&server, &data.proc_segment, pid);
+			glibtop_output (sizeof (glibtop_proc_segment),
+					&data.proc_segment);
+			glibtop_output (0, NULL);
+			break;
+
+		}
+	}
+	_exit(0);
+}
diff --git a/src/server/output.c b/src/server/output.c
new file mode 100644
index 00000000..9fa98655
--- /dev/null
+++ b/src/server/output.c
@@ -0,0 +1,31 @@
+/* $Id$ */
+
+/* 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 <glibtop/output.h>
+
+void
+glibtop_output (size_t size, const void *buf)
+{
+	if (write (1, &size, sizeof (size_t)) < 0)
+		_exit (2);
+	if (write (1, buf, size) < 0)
+		_exit (2);
+}
diff --git a/src/server/version.c b/src/server/version.c
new file mode 100644
index 00000000..3e21f55a
--- /dev/null
+++ b/src/server/version.c
@@ -0,0 +1,31 @@
+/* $Id$ */
+
+/* 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 <glibtop/version.h>
+
+void
+glibtop_version (void)
+{
+	char buffer [BUFSIZ];
+	
+	sprintf (buffer, "%s server %s ready.\n", PACKAGE, VERSION);
+	glibtop_output (strlen (buffer), buffer);
+}