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
127
128
129
130
131
|
// *****************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
// *****************************************************************************
#include "system.h"
#include "file_access.h"
#include "crc.h"
#include "symlink_target.h"
#include "file_io.h"
#include <ifaddrs.h>
#include <net/if.h> //IFF_LOOPBACK
#include <netpacket/packet.h> //sockaddr_ll
#include <unistd.h> //getuid()
#include <pwd.h> //getpwuid_r()
#include "shell_execute.h"
using namespace zen;
std::wstring zen::getUserName() //throw FileError
{
const uid_t userIdNo = ::getuid(); //never fails
std::vector<char> buffer(std::max<long>(10000, ::sysconf(_SC_GETPW_R_SIZE_MAX))); //::sysconf may return long(-1)
struct passwd buffer2 = {};
struct passwd* pwsEntry = nullptr;
if (::getpwuid_r(userIdNo, &buffer2, &buffer[0], buffer.size(), &pwsEntry) != 0) //getlogin() is deprecated and not working on Ubuntu at all!!!
THROW_LAST_FILE_ERROR(_("Cannot get process information."), "getpwuid_r");
if (!pwsEntry)
throw FileError(_("Cannot get process information."), L"no login found"); //should not happen?
return utfTo<std::wstring>(pwsEntry->pw_name);
}
namespace
{
}
ComputerModel zen::getComputerModel() //throw FileError
{
ComputerModel cm;
try
{
auto tryGetInfo = [](const Zstring& filePath)
{
if (!fileAvailable(filePath))
return std::wstring();
try
{
const std::string stream = loadBinContainer<std::string>(filePath, nullptr /*notifyUnbufferedIO*/); //throw FileError
return utfTo<std::wstring>(trimCpy(stream));
}
catch (const FileError& e) { throw SysError(e.toString()); } //errors should be further enriched by context info => SysError
};
cm.model = tryGetInfo("/sys/devices/virtual/dmi/id/product_name"); //throw SysError
cm.vendor = tryGetInfo("/sys/devices/virtual/dmi/id/sys_vendor"); //
//clean up:
for (const char* dummyModel :
{
"To Be Filled By O.E.M.", "Default string", "empty", "O.E.M", "OEM", "NA",
"System Product Name", "Please change product name", "INVALID",
})
if (equalAsciiNoCase(cm.model, dummyModel))
{
cm.model.clear();
break;
}
for (const char* dummyVendor :
{
"To Be Filled By O.E.M.", "Default string", "empty", "O.E.M", "OEM", "NA",
"System manufacturer", "OEM Manufacturer",
})
if (equalAsciiNoCase(cm.vendor, dummyVendor))
{
cm.vendor.clear();
break;
}
return cm;
}
catch (const SysError& e) { throw FileError(_("Cannot get process information."), e.toString()); }
}
std::wstring zen::getOsDescription() //throw FileError
{
try
{
//"lsb_release" not available on some systems: https://freefilesync.org/forum/viewtopic.php?t=7191
// => use /etc/os-release: https://www.freedesktop.org/software/systemd/man/os-release.html
std::string releaseInfo;
try
{
releaseInfo = loadBinContainer<std::string>("/etc/os-release", nullptr /*notifyUnbufferedIO*/); //throw FileError
}
catch (const FileError& e) { throw SysError(e.toString()); } //further enrich with context info => SysError
std::string osName;
std::string osVersion;
for (const std::string& line : split(releaseInfo, '\n', SplitType::SKIP_EMPTY)) //throw FileError
if (startsWith(line, "NAME="))
osName = afterFirst(line, '=', IF_MISSING_RETURN_NONE);
else if (startsWith(line, "VERSION_ID="))
osVersion = afterFirst(line, '=', IF_MISSING_RETURN_NONE);
trim(osName, true, true, [](char c) { return c == '"' || c == '\''; });
trim(osVersion, true, true, [](char c) { return c == '"' || c == '\''; });
if (osName .empty()) throw SysError(formatSystemError("/etc/os-release", L"", L"NAME missing."));
if (osVersion.empty()) throw SysError(formatSystemError("/etc/os-release", L"", L"VERSION_ID missing."));
//PRETTY_NAME? too wordy! e.g. "Fedora 17 (Beefy Miracle)"
return utfTo<std::wstring>(osName + ' ' + osVersion); //e.g. "CentOS Linux 7"
}
catch (const SysError& e) { throw FileError(_("Cannot get process information."), e.toString()); }
}
|
