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
|
/*
Copyright (C) 2021-2025 Selwin van Dijk
This file is part of signalbackup-tools.
signalbackup-tools 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 3 of the License, or
(at your option) any later version.
signalbackup-tools 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 signalbackup-tools. If not, see <https://www.gnu.org/licenses/>.
*/
#include "signalbackup.ih"
#if !defined(_WIN32) && !defined(__MINGW64__)
#include <fcntl.h>
#include <sys/stat.h>
bool SignalBackup::setFileTimeStamp(std::string const &file, long long int time_usec) const
{
struct timespec ntimes[] =
{
{ // ntimes[0] = // last access time
time_usec / 1000, // tv_sec, seconds
(time_usec % 1000) * 1000 // tv_usec, nanoseconds
},
{ // ntimes[1] = // last modification time
time_usec / 1000, // tv_sec, seconds
(time_usec % 1000) * 1000 // tv_usec, nanoseconds
}
};
return (utimensat(AT_FDCWD, file.c_str(), ntimes, 0) == 0);
}
#else // this is poorly tested, I don't have windows
#include <winbase.h>
#include <fileapi.h>
bool SignalBackup::setFileTimeStamp(std::string const &file, long long int time_usec) const
{
// get file handle
HANDLE hFile = CreateFile(file.c_str(), GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
return false;
// windows epoch starts at 1601-01-01T00:00:00Z, 11644473600 seconds before the unix epoch.
// then windows counts in 100 nsec chunks.
long long unsigned int wintime = time_usec * 10000 + 116444736000000000;
FILE_BASIC_INFO b;
b.CreationTime.QuadPart = wintime;
b.LastAccessTime.QuadPart = wintime;
b.LastWriteTime.QuadPart = wintime;
b.ChangeTime.QuadPart = wintime;
b.FileAttributes = 0; // leave unchanged
if (SetFileInformationByHandle(hFile, FileBasicInfo, &b, sizeof(b)) != 0)
{
// ignore for now...
}
return (CloseHandle(hFile));
}
#endif
|
