Initial revision

1998-05-19 18:19:50 +00:00
commit 33cdc01c1d
249 changed files with 19386 additions and 0 deletions
--- a/sysdeps/linux/procstate.c
+++ b/sysdeps/linux/procstate.c
@@ -0,0 +1,88 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/procstate.h>
+
+#include <sys/stat.h>
+
+static const unsigned long _glibtop_sysdeps_proc_state =
+(1 << GLIBTOP_PROC_STATE_CMD) + (1 << GLIBTOP_PROC_STATE_STATE) +
+(1 << GLIBTOP_PROC_STATE_UID) + (1 << GLIBTOP_PROC_STATE_GID);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_state__r (glibtop *server, glibtop_proc_state *buf, pid_t pid)
+{
+	char input [BUFSIZ], *tmp;
+	struct stat statb;
+	int nread;
+	FILE *f;
+	
+	glibtop_init__r (&server);
+
+	memset (buf, 0, sizeof (glibtop_proc_state));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_state;
+		return;
+	}
+
+	sprintf (input, "/proc/%d/stat", pid);
+
+	/* IMPORTANT NOTICE: For security reasons it is extremely important
+	 *                   that the 'uid' and 'gid' fields have correct
+	 *                   values; NEVER set their flags values if this
+	 *                   is not the case !!! */
+
+	if (stat (input, &statb)) return;
+
+	/* For security reasons we use stat () that is more failsafe than sscanf (). */
+	
+	buf->uid = statb.st_uid;
+	buf->gid = statb.st_gid;
+	
+	f = fopen (input, "r");
+	if (!f) return;
+	
+	nread = fread (input, 1, BUFSIZ, f);
+	
+	if (nread < 0) {
+		fclose (f);
+		return;
+	}
+	
+	input [nread] = 0;
+	
+	/* This is from guile-utils/gtop/proc/readproc.c */
+	
+	/* split into "PID (cmd" and "<rest>" */
+	tmp = strrchr (input, ')');
+	*tmp = '\0';		/* replace trailing ')' with NUL */
+	/* parse these two strings separately, skipping the leading "(". */
+	memset (buf->cmd, 0, sizeof (buf->cmd));
+	sscanf (input, "%d (%39c", &pid, buf->cmd);
+	sscanf(tmp + 2, "%c", &buf->state); /* skip space after ')' too */
+
+	buf->flags = _glibtop_sysdeps_proc_state;
+}