1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/* $Id$ */
/* 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 Library 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 Library General Public
License for more details.
You should have received a copy of the GNU Library General Public
License along with LibGTop; 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/procuid.h>
static const unsigned long _glibtop_sysdeps_proc_uid =
(1 << GLIBTOP_PROC_UID_UID) + (1 << GLIBTOP_PROC_UID_EUID) +
(1 << GLIBTOP_PROC_UID_GID) + (1 << GLIBTOP_PROC_UID_EGID);
static const unsigned long _glibtop_sysdeps_proc_uid_stat =
(1 << GLIBTOP_PROC_UID_PID) + (1 << GLIBTOP_PROC_UID_PPID) +
(1 << GLIBTOP_PROC_UID_PGRP) + (1 << GLIBTOP_PROC_UID_SESSION) +
(1 << GLIBTOP_PROC_UID_TTY) + (1 << GLIBTOP_PROC_UID_TPGID) +
(1 << GLIBTOP_PROC_UID_PRIORITY) + (1 << GLIBTOP_PROC_UID_NICE);
#define LINUX_VERSION(x,y,z) (0x10000*(x) + 0x100*(y) + z)
/* 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;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_UID, 0);
memset (buf, 0, sizeof (glibtop_proc_uid));
if (proc_status_to_buffer (buffer, pid))
return;
/* Search substring 'Pid:' */
p = strstr (buffer, "\nPid:");
if (!p) return;
p = skip_token (p); /* "Pid:" */
buf->pid = strtoul (p, &p, 0);
p = skip_token (p); /* "PPid:" */
buf->ppid = strtoul (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 = strtoul (p, &p, 0);
buf->euid = strtoul (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 = strtoul (p, &p, 0);
buf->egid = strtoul (p, &p, 0);
buf->flags = _glibtop_sysdeps_proc_uid;
if (proc_stat_to_buffer (buffer, pid))
return;
p = proc_stat_after_cmd (buffer);
if (!p) return;
p = skip_multiple_token (p, 2);
buf->pgrp = strtoul (p, &p, 0);
buf->session = strtoul (p, &p, 0);
buf->tty = strtoul (p, &p, 0);
buf->tpgid = strtoul (p, &p, 0);
p = skip_multiple_token (p, 9);
buf->priority = strtoul (p, &p, 0);
buf->nice = strtoul (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(1,3,39)) {
/* map old meanings to new */
buf->priority = 2*15 - buf->priority;
buf->nice = 15 - buf->nice;
}
if (server->os_version_code < LINUX_VERSION(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;
}
|
