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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/procuid.h>
#include <glibtop_suid.h>
#include <sys/table.h>
#include <sys/resource.h>
#include <mach.h>
#include <mach/mach_types.h>
#include <mach/task_info.h>
/* Provides detailed information about a process. */
static const unsigned long _glibtop_sysdeps_proc_uid =
(1L << GLIBTOP_PROC_UID_UID) + (1L << GLIBTOP_PROC_UID_EUID) +
(1L << GLIBTOP_PROC_UID_GID) + (1L << GLIBTOP_PROC_UID_EGID) +
(1L << GLIBTOP_PROC_UID_PID) + (1L << GLIBTOP_PROC_UID_PPID) +
(1L << GLIBTOP_PROC_UID_PGRP) + (1L << GLIBTOP_PROC_UID_SESSION) +
(1L << GLIBTOP_PROC_UID_TTY) + (1L << GLIBTOP_PROC_UID_TPGID);
/* Init function. */
void
_glibtop_init_proc_uid_p (glibtop *server)
{
server->sysdeps.proc_uid = _glibtop_sysdeps_proc_uid;
}
void
glibtop_get_proc_uid_p (glibtop *server, glibtop_proc_uid *buf,
pid_t pid)
{
struct tbl_procinfo procinfo;
task_basic_info_data_t taskinfo;
int ret, info_count;
task_t thistask;
glibtop_init_p (server, GLIBTOP_SYSDEPS_PROC_UID, 0);
memset (buf, 0, sizeof (glibtop_proc_uid));
/* !!! 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;
buf->uid = procinfo.pi_ruid;
buf->euid = procinfo.pi_svuid;
buf->gid = procinfo.pi_rgid;
buf->egid = procinfo.pi_svgid;
buf->pid = procinfo.pi_pid;
buf->ppid = procinfo.pi_ppid;
buf->pgrp = procinfo.pi_pgrp;
buf->tty = procinfo.pi_ttyd;
buf->session = procinfo.pi_session;
buf->tpgid = procinfo.pi_tpgrp;
buf->flags = _glibtop_sysdeps_proc_uid;
/* !!! 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) {
/* Get taskinfo about this task. */
info_count = TASK_BASIC_INFO_COUNT;
ret = task_info (thistask, TASK_BASIC_INFO,
(task_info_t) &taskinfo, &info_count);
/* `ret' is evaluated outside the `if' clause. */
}
glibtop_suid_leave (server);
/* !!! END OF SUID ROOT PART !!! */
if (ret != KERN_SUCCESS) return;
buf->priority = taskinfo.base_priority;
buf->flags += (1L << GLIBTOP_PROC_UID_PRIORITY);
errno = 0;
ret = getpriority (PRIO_PROCESS, pid);
if ((ret == -1) && (errno != 0)) return;
buf->nice = ret;
buf->flags += (1L << GLIBTOP_PROC_UID_NICE);
}
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