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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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procuid.h>
#include "glibtop_private.h"
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);
static const unsigned long _glibtop_sysdeps_proc_uid_stat =
(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) +
(1L << GLIBTOP_PROC_UID_PRIORITY) + (1L << GLIBTOP_PROC_UID_NICE);
/* Init function. */
void
_glibtop_init_proc_uid_s (glibtop *server)
{
server->sysdeps.proc_uid = _glibtop_sysdeps_proc_uid |
_glibtop_sysdeps_proc_uid_stat;
}
/* Provides detailed information about a process. */
void
glibtop_get_proc_uid_s (glibtop *server, glibtop_proc_uid *buf, pid_t pid)
{
char buffer [BUFSIZ], *p;
memset (buf, 0, sizeof (glibtop_proc_uid));
if (proc_status_to_buffer(buffer, sizeof buffer, pid))
return;
/* Search substring 'Pid:' */
p = strstr (buffer, "\nPid:");
if (!p) return;
p = skip_token (p); /* "Pid:" */
buf->pid = strtol (p, &p, 0);
p = skip_token (p); /* "PPid:" */
buf->ppid = strtol (p, &p, 0);
/* Maybe future Linux versions place something between
* "PPid" and "Uid", so we catch this here. */
p = strstr (p, "\nUid:");
if (!p) return;
p = skip_token (p); /* "Uid:" */
buf->uid = strtol (p, &p, 0);
buf->euid = strtol (p, &p, 0);
/* We don't know how many entries on the "Uid:" line
* future Linux version will have, so we catch this here. */
p = strstr (p, "\nGid:");
if (!p) return;
p = skip_token (p); /* "Gid:" */
buf->gid = strtol (p, &p, 0);
buf->egid = strtol (p, &p, 0);
buf->flags = _glibtop_sysdeps_proc_uid;
if (proc_stat_to_buffer(buffer, sizeof buffer, pid))
return;
p = proc_stat_after_cmd (buffer);
if (!p) return;
p = skip_multiple_token (p, 2);
buf->pgrp = strtol (p, &p, 0);
buf->session = strtol (p, &p, 0);
buf->tty = strtol (p, &p, 0);
buf->tpgid = strtol (p, &p, 0);
p = skip_multiple_token (p, 9);
buf->priority = strtol (p, &p, 0);
buf->nice = strtol (p, &p, 0);
if (buf->tty == 0)
/* the old notty val, update elsewhere bef. moving to 0 */
buf->tty = -1;
if (server->os_version_code < LINUX_VERSION_CODE(1,3,39)) {
/* map old meanings to new */
buf->priority = 2*15 - buf->priority;
buf->nice = 15 - buf->nice;
}
else if (server->os_version_code < LINUX_VERSION_CODE(1,1,30) && buf->tty != -1)
/* when tty wasn't full devno */
buf->tty = 4*0x100 + buf->tty;
buf->flags |= _glibtop_sysdeps_proc_uid_stat;
}
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