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104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/*
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* c_time - time functions
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*
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* Copyright (c) 2008-2013 by Andreas Schneider <asn@cryptomilk.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config_csync.h"
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#include "c_private.h"
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#include "c_time.h"
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#include <QFile>
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#ifdef HAVE_UTIMES
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int c_utimes(const QString &uri, const struct timeval *times) {
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int ret = utimes(QFile::encodeName(uri).constData(), times);
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return ret;
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}
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#else // HAVE_UTIMES
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#ifdef _WIN32
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// implementation for utimes taken from KDE mingw headers
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#include <errno.h>
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#include <wtypes.h>
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#define CSYNC_SECONDS_SINCE_1601 11644473600LL
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#define CSYNC_USEC_IN_SEC 1000000LL
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//after Microsoft KB167296
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static void UnixTimevalToFileTime(struct timeval t, LPFILETIME pft)
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{
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LONGLONG ll;
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ll = Int32x32To64(t.tv_sec, CSYNC_USEC_IN_SEC*10) + t.tv_usec*10 + CSYNC_SECONDS_SINCE_1601*CSYNC_USEC_IN_SEC*10;
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pft->dwLowDateTime = (DWORD)ll;
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pft->dwHighDateTime = ll >> 32;
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}
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int c_utimes(const QString &uri, const struct timeval *times) {
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FILETIME LastAccessTime;
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FILETIME LastModificationTime;
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HANDLE hFile;
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auto wuri = uri.toStdWString();
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if(times) {
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UnixTimevalToFileTime(times[0], &LastAccessTime);
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UnixTimevalToFileTime(times[1], &LastModificationTime);
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}
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else {
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GetSystemTimeAsFileTime(&LastAccessTime);
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GetSystemTimeAsFileTime(&LastModificationTime);
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}
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hFile=CreateFileW(wuri.data(), FILE_WRITE_ATTRIBUTES, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL+FILE_FLAG_BACKUP_SEMANTICS, NULL);
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if(hFile==INVALID_HANDLE_VALUE) {
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switch(GetLastError()) {
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case ERROR_FILE_NOT_FOUND:
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errno=ENOENT;
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break;
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case ERROR_PATH_NOT_FOUND:
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case ERROR_INVALID_DRIVE:
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errno=ENOTDIR;
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break;
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/*case ERROR_WRITE_PROTECT: //CreateFile sets ERROR_ACCESS_DENIED on read-only devices
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* errno=EROFS;
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* break;*/
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case ERROR_ACCESS_DENIED:
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errno=EACCES;
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break;
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default:
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errno=ENOENT; //what other errors can occur?
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}
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return -1;
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}
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if(!SetFileTime(hFile, NULL, &LastAccessTime, &LastModificationTime)) {
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//can this happen?
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errno=ENOENT;
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CloseHandle(hFile);
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return -1;
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}
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CloseHandle(hFile);
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return 0;
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}
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#endif // _WIN32
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#endif // HAVE_UTIMES
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