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//---------------------------------------------------------------------------
// POSIXUtil.cpp
//---------------------------------------------------------------------------
// -=* VPatch *=-
//---------------------------------------------------------------------------
// Copyright (C) 2001-2005 Koen van de Sande / Van de Sande Productions
//---------------------------------------------------------------------------
// Website: http://www.tibed.net/vpatch
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
// Unicode support by Jim Park -- 08/29/2007
#include "POSIXUtil.h"
#include <iostream>
#include <fstream>
#include <time.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
/* My Borland/VC++ compiler do not have this file */
#if !defined(__BORLANDC__) && !defined(_MSC_VER)
#include <unistd.h>
#endif
#ifdef __WIN32__ /* The Windows way of getting a temp file needs windows.h*/
#include <windows.h>
#endif
using namespace std;
namespace POSIX {
void TimeT_To_FILETIME(time_t t, ALT_FILETIME *pft ) {
uint64_t ll = (((uint64_t)t) *10000000L) + (((uint64_t)116444736L) * 1000000000L);
pft->dwLowDateTime = (uint32_t)(ll & 0xFFFFFFFF);
pft->dwHighDateTime = (uint32_t)((ll>>32)&0xFFFFFFFF);
}
#ifdef __WIN32__
/* do it the old way on Win32, because POSIX does not get timezone stuff right */
ALT_FILETIME getFileTime(const TCHAR* sFileName) {
FILETIME temp;
GetSystemTimeAsFileTime(&temp);
HANDLE h = CreateFile(sFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (h == INVALID_HANDLE_VALUE) {
terr << _T("Cannot read file time of ") << sFileName << _T("\n");
} else {
GetFileTime(h, NULL, NULL, &temp);
CloseHandle(h);
}
ALT_FILETIME result;
result.dwHighDateTime = temp.dwHighDateTime;
result.dwLowDateTime = temp.dwLowDateTime;
return result;
}
#else
ALT_FILETIME getFileTime(const char* sFileName) {
struct stat buf;
/* get current time first as a fall-back */
time_t currentTime = time(NULL);
if(stat(sFileName, &buf)) {
terr << _T("Cannot read file time of ") << sFileName << _T("\n");
} else {
/* get the time from the file */
currentTime = buf.st_mtime;
}
ALT_FILETIME result;
TimeT_To_FILETIME(currentTime, &result);
return result;
}
#endif
uint32_t getFileSize(const TCHAR* sFileName) {
bifstream f;
f.open(sFileName, std::ios_base::binary | std::ios_base::in);
if (!f.good() || f.eof() || !f.is_open()) {
throw _T("File could not be read (getFileSize)");
}
f.seekg(0, std::ios_base::beg);
std::ifstream::pos_type begin_pos = f.tellg();
f.seekg(0, std::ios_base::end);
return static_cast<int>(f.tellg() - begin_pos);
}
#ifdef __WIN32__
tstring getTempFile() {
TCHAR buffer[MAX_PATH];
if(GetTempFileName(_T("."),_T("vpatch"),0,buffer) == 0) {
terr << _T("Cannot create temporary filename");
}
return tstring(buffer);
}
#else
tstring getTempFile() {
TCHAR t[] = _T("/tmp/genpatXXXXXX");
mode_t old_umask = umask(0077);
int fd = mkstemp(t);
if (fd == -1) {
terr << _T("Cannot create temporary filename");
return _T("");
}
close(fd);
umask(old_umask);
return tstring(t);
}
#endif
}
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