Line data Source code
1 : // Copyright (c) 2013-2022 Made to Order Software Corp. All Rights Reserved
2 : //
3 : // https://snapwebsites.org/project/snaplogger
4 : // contact@m2osw.com
5 : //
6 : // This program is free software; you can redistribute it and/or modify
7 : // it under the terms of the GNU General Public License as published by
8 : // the Free Software Foundation; either version 2 of the License, or
9 : // (at your option) any later version.
10 : //
11 : // This program is distributed in the hope that it will be useful,
12 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : // GNU General Public License for more details.
15 : //
16 : // You should have received a copy of the GNU General Public License along
17 : // with this program; if not, write to the Free Software Foundation, Inc.,
18 : // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 :
20 : /** \file
21 : * \brief Implementation of user related variables.
22 : *
23 : * This file implements support for data intrinsic to the current user.
24 : *
25 : * \li `uid`
26 : *
27 : * The user identifier as found in `/etc/passwd`.
28 : *
29 : * \li `username`
30 : *
31 : * The name of the current user as defined in the password database.
32 : * This function searches for a name for the current getuid().
33 : *
34 : * \li `gid`
35 : *
36 : * The group identifier of the current user as found in `/etc/group`.
37 : *
38 : * \li `groupname`
39 : *
40 : * The name of the current group as defined in the group database.
41 : * This function searches for a name for the current getgid().
42 : */
43 :
44 : // self
45 : //
46 : #include "snaplogger/variable.h"
47 :
48 :
49 : // C lib
50 : //
51 : #include <grp.h>
52 : #include <pwd.h>
53 : #include <sys/types.h>
54 : #include <unistd.h>
55 :
56 :
57 : // last include
58 : //
59 : #include <snapdev/poison.h>
60 :
61 :
62 :
63 : namespace snaplogger
64 : {
65 :
66 :
67 : namespace
68 : {
69 :
70 :
71 7 : DEFINE_LOGGER_VARIABLE(uid)
72 : {
73 0 : auto params(get_params());
74 0 : if(params.size() > 0
75 0 : && params[0]->get_name() == "running")
76 : {
77 0 : value += std::to_string(getuid());
78 : }
79 : else
80 : {
81 0 : value += std::to_string(msg.get_environment()->get_uid());
82 : }
83 :
84 0 : variable::process_value(msg, value);
85 0 : }
86 :
87 :
88 7 : DEFINE_LOGGER_VARIABLE(username)
89 : {
90 : uid_t uid;
91 0 : auto params(get_params());
92 0 : if(params.size() > 0
93 0 : && params[0]->get_name() == "running")
94 : {
95 0 : uid = getuid();
96 : }
97 : else
98 : {
99 0 : uid = msg.get_environment()->get_uid();
100 : }
101 :
102 0 : char buf[1024];
103 0 : passwd pw;
104 0 : passwd * pw_ptr(nullptr);
105 0 : if(getpwuid_r(uid, &pw, buf, sizeof(buf), &pw_ptr) == 0
106 0 : && pw_ptr == &pw)
107 : {
108 0 : value += pw.pw_name;
109 : }
110 :
111 0 : variable::process_value(msg, value);
112 0 : }
113 :
114 :
115 7 : DEFINE_LOGGER_VARIABLE(gid)
116 : {
117 0 : auto params(get_params());
118 0 : if(params.size() > 0
119 0 : && params[0]->get_name() == "running")
120 : {
121 0 : value += std::to_string(getgid());
122 : }
123 : else
124 : {
125 0 : value += std::to_string(msg.get_environment()->get_gid());
126 : }
127 :
128 0 : variable::process_value(msg, value);
129 0 : }
130 :
131 :
132 7 : DEFINE_LOGGER_VARIABLE(groupname)
133 : {
134 : gid_t gid;
135 0 : auto params(get_params());
136 0 : if(params.size() > 0
137 0 : && params[0]->get_name() == "running")
138 : {
139 0 : gid = getgid();
140 : }
141 : else
142 : {
143 0 : gid = msg.get_environment()->get_gid();
144 : }
145 :
146 0 : char buf[1024];
147 0 : group gr;
148 0 : group * gr_ptr(nullptr);
149 0 : if(getgrgid_r(gid, &gr, buf, sizeof(buf), &gr_ptr) == 0
150 0 : && gr_ptr == &gr)
151 : {
152 0 : value += gr.gr_name;
153 : }
154 :
155 0 : variable::process_value(msg, value);
156 0 : }
157 :
158 :
159 : }
160 : // no name namespace
161 :
162 :
163 6 : } // snaplogger namespace
164 : // vim: ts=4 sw=4 et
|
