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/* 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procstate.h>
#include <glibtop_suid.h>
#include <mach.h>
#include <mach/mach_types.h>
#include <mach/task_info.h>
static const unsigned long _glibtop_sysdeps_proc_state =
(1L << GLIBTOP_PROC_STATE_CMD) +
(1L << GLIBTOP_PROC_STATE_UID) + (1L << GLIBTOP_PROC_STATE_GID) +
(1L << GLIBTOP_PROC_STATE_RUID) + (1L << GLIBTOP_PROC_STATE_RGID);
/* Init function. */
void
glibtop_init_proc_state_p (glibtop *server)
{
server->sysdeps.proc_state = _glibtop_sysdeps_proc_state;
}
/* Provides detailed information about a process. */
void
glibtop_get_proc_state_p (glibtop *server, glibtop_proc_state *buf,
pid_t pid)
{
struct tbl_procinfo procinfo;
int minim_state = 99, ret;
task_t thistask;
glibtop_init_p (server, GLIBTOP_SYSDEPS_PROC_STATE, 0);
memset (buf, 0, sizeof (glibtop_proc_state));
/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
glibtop_suid_enter (server);
ret = table (TBL_PROCINFO, pid, (char *) &procinfo, 1,
sizeof (struct tbl_procinfo));
glibtop_suid_leave (server);
/* !!! END OF SUID ROOT PART !!! */
if (ret != 1) return;
/* Check whether the process actually exists. */
if (procinfo.pi_status == PI_EMPTY) return;
/* Check whether it is not a zombie. */
if (procinfo.pi_status == PI_ZOMBIE) {
buf->state = GLIBTOP_PROCESS_ZOMBIE;
buf->flags = (1L << GLIBTOP_PROC_STATE_STATE);
return;
}
g_strlcpy (buf->cmd, procinfo.pi_comm, sizeof buf->cmd);
buf->uid = procinfo.pi_svuid;
buf->gid = procinfo.pi_svgid;
buf->ruid = procinfo.pi_ruid;
buf->rgid = procinfo.pi_rgid;
buf->flags = _glibtop_sysdeps_proc_state;
/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
glibtop_suid_enter (server);
/* Get task structure. */
ret = task_by_unix_pid (task_self(), procinfo.pi_pid, &thistask);
if (ret == KERN_SUCCESS) {
thread_array_t threadarr;
unsigned int threadarr_l;
thread_basic_info_t threadinfo;
thread_basic_info_data_t threadinfodata;
int j;
/* Get thread array. */
(void) task_threads (thistask, &threadarr, &threadarr_l);
threadinfo = &threadinfodata;
for (j = 0; j < threadarr_l; j++) {
unsigned int threadinfo_l = THREAD_BASIC_INFO_COUNT;
int tret;
tret = thread_info (threadarr [j], THREAD_BASIC_INFO,
(thread_info_t) threadinfo, &threadinfo_l);
if (tret == KERN_SUCCESS) {
if (minim_state > threadinfo->run_state)
minim_state=threadinfo->run_state;
}
}
}
glibtop_suid_leave (server);
/* !!! END OF SUID ROOT PART !!! */
if (ret != KERN_SUCCESS) return;
switch (minim_state) {
case TH_STATE_RUNNING:
buf->state = GLIBTOP_PROCESS_RUNNING;
break;
case TH_STATE_UNINTERRUPTIBLE:
buf->state = GLIBTOP_PROCESS_UNINTERRUPTIBLE;
break;
case TH_STATE_WAITING:
buf->state = GLIBTOP_PROCESS_INTERRUPTIBLE;
break;
case TH_STATE_STOPPED:
case TH_STATE_HALTED:
buf->state = GLIBTOP_PROCESS_STOPPED;
break;
default:
if (ret != KERN_SUCCESS)
buf->state = GLIBTOP_PROCESS_ZOMBIE;
break;
}
if (buf->state)
buf->flags |= (1L << GLIBTOP_PROC_STATE_STATE);
}
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