90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* $Id$ */
|
|
|
|
/* 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/error.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);
|
|
|
|
static const unsigned long _glibtop_sysdeps_proc_state_uid =
|
|
(1 << GLIBTOP_PROC_STATE_UID) + (1 << GLIBTOP_PROC_STATE_GID);
|
|
|
|
/* Init function. */
|
|
|
|
void
|
|
glibtop_init_proc_state_s (glibtop *server)
|
|
{
|
|
server->sysdeps.proc_state = _glibtop_sysdeps_proc_state |
|
|
_glibtop_sysdeps_proc_state_uid;
|
|
}
|
|
|
|
/* Provides detailed information about a process. */
|
|
|
|
void
|
|
glibtop_get_proc_state_s (glibtop *server, glibtop_proc_state *buf, pid_t pid)
|
|
{
|
|
char buffer [BUFSIZ], *p;
|
|
struct stat statb;
|
|
|
|
glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_STATE, 0);
|
|
|
|
memset (buf, 0, sizeof (glibtop_proc_state));
|
|
|
|
/* 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 !!! */
|
|
|
|
sprintf (buffer, "/proc/%d/stat", pid);
|
|
|
|
if (stat (buffer, &statb))
|
|
return;
|
|
|
|
/* For security reasons we use stat () since it is
|
|
* more failsafe than parsing the file. */
|
|
|
|
buf->uid = statb.st_uid;
|
|
buf->gid = statb.st_gid;
|
|
|
|
buf->flags = _glibtop_sysdeps_proc_state_uid;
|
|
|
|
/* Now we read the remaining fields. */
|
|
|
|
if (proc_stat_to_buffer (buffer, pid))
|
|
return;
|
|
|
|
p = strrchr (buffer, ')'); *p = '\0';
|
|
buf->state = p [2];
|
|
|
|
p = skip_token (buffer); p++; /* pid */
|
|
if (*p++ != '(')
|
|
glibtop_error_r (server, "Bad data in /proc/%d/stat", pid);
|
|
|
|
strncpy (buf->cmd, p, sizeof (buf->cmd)-1);
|
|
buf->cmd [sizeof (buf->cmd)-1] = 0;
|
|
|
|
buf->flags |= _glibtop_sysdeps_proc_state;
|
|
}
|