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
|
/* privileges.c
* Routines for handling privileges, e.g. set-UID and set-GID on UNIX.
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2006 Gerald Combs
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include "privileges.h"
#ifdef _WIN32
/*
* Called when the program starts, to save whatever credential information
* we'll need later.
*/
void
get_credential_info(void)
{
}
/*
* For now, we say the program wasn't started with special privileges.
* There are ways of running programs with credentials other than those
* for the session in which it's run, but I don't know whether that'd be
* done with Wireshark/TShark or not.
*/
gboolean
started_with_special_privs(void)
{
return FALSE;
}
/*
* For now, we don't do anything when asked to relinquish special privileges.
*/
void
relinquish_special_privs_perm(void)
{
}
#else /* _WIN32 */
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
static uid_t ruid, euid;
static gid_t rgid, egid;
/*
* Called when the program starts, to save whatever credential information
* we'll need later.
* That'd be the real and effective UID and GID on UNIX.
*/
void
get_credential_info(void)
{
ruid = getuid();
euid = geteuid();
rgid = getgid();
egid = getegid();
}
/*
* "Started with special privileges" means "started out set-UID or set-GID".
*/
gboolean
started_with_special_privs(void)
{
#ifdef HAVE_ISSETUGID
return issetugid();
#else
return (ruid != euid || rgid != egid);
#endif
}
/*
* Permanently relinquish set-UID and set-GID privileges.
* Ignore errors for now - if we have the privileges, we should
* be able to relinquish them.
*/
void
relinquish_special_privs_perm(void)
{
setuid(ruid);
setgid(rgid);
}
#endif /* _WIN32 */
|
