1 /*
2 This file is part of LibGTop 2.0.
3
4 LibGTop is free software; you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License,
7 or (at your option) any later version.
8
9 LibGTop is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with LibGTop; see the file COPYING. If not, write to the
16 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 Boston, MA 02110-1301, USA.
18 */
19
20 #include <config.h>
21 #include <unistd.h>
22
23 #include <glibtop.h>
24 #include <glibtop/error.h>
25 #include <glibtop/procuid.h>
26
27 #include <glibtop_suid.h>
28
29 #include <sys/param.h>
30 #include <sys/sysctl.h>
31
32 static const unsigned long _glibtop_sysdeps_proc_uid =
33 (1L << GLIBTOP_PROC_UID_UID) + (1L << GLIBTOP_PROC_UID_EUID) +
34 (1L << GLIBTOP_PROC_UID_GID) + (1L << GLIBTOP_PROC_UID_EGID) +
35 (1L << GLIBTOP_PROC_UID_PID) + (1L << GLIBTOP_PROC_UID_PPID) +
36 (1L << GLIBTOP_PROC_UID_PGRP) + (1L << GLIBTOP_PROC_UID_TTY) +
37 (1L << GLIBTOP_PROC_UID_TPGID);
38
39 /* Init function. */
40
41 void
_glibtop_init_proc_uid_p(glibtop * server)42 _glibtop_init_proc_uid_p (glibtop *server)
43 {
44 server->sysdeps.proc_uid = _glibtop_sysdeps_proc_uid;
45 }
46
47 /* Provides detailed information about a process. */
48
49 void
glibtop_get_proc_uid_p(glibtop * server,glibtop_proc_uid * buf,pid_t pid)50 glibtop_get_proc_uid_p (glibtop *server, glibtop_proc_uid *buf,
51 pid_t pid)
52 {
53 int mib[4];
54 size_t length;
55 struct kinfo_proc kinfo;
56
57 glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_PROC_UID), 0);
58
59 memset (buf, 0, sizeof (glibtop_proc_uid));
60
61 mib [0] = CTL_KERN;
62 mib [1] = KERN_PROC;
63 mib [2] = KERN_PROC_PID;
64 mib [3] = pid;
65
66 length = sizeof (struct kinfo_proc);
67 if (sysctl (mib, 4, &kinfo, &length, NULL, 0) < 0) {
68 glibtop_warn_io_r (server, "sysctl (procuid)");
69 return;
70 }
71
72 buf->uid = kinfo.kp_eproc.e_pcred.p_ruid;
73 buf->euid = kinfo.kp_eproc.e_pcred.p_svuid;
74 buf->gid = kinfo.kp_eproc.e_pcred.p_rgid;
75 buf->egid = kinfo.kp_eproc.e_pcred.p_svgid;
76 buf->ppid = kinfo.kp_eproc.e_ppid;
77 buf->pgrp = kinfo.kp_eproc.e_pgid;
78 buf->tpgid = kinfo.kp_eproc.e_tpgid;
79 buf->nice = kinfo.kp_proc.p_nice;
80 buf->priority = kinfo.kp_proc.p_priority;
81
82 buf->flags = _glibtop_sysdeps_proc_uid;
83 }
84