752d7d239a
Compiler output is identical before & after this step git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/branches/wizou@6036 212acab6-be3b-0410-9dea-997c60f758d6
132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
//---------------------------------------------------------------------------
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// POSIXUtil.cpp
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//---------------------------------------------------------------------------
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// -=* VPatch *=-
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//---------------------------------------------------------------------------
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// Copyright (C) 2001-2005 Koen van de Sande / Van de Sande Productions
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//---------------------------------------------------------------------------
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// Website: http://www.tibed.net/vpatch
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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//
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// Unicode support by Jim Park -- 08/29/2007
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#include "POSIXUtil.h"
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#include <iostream>
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#include <fstream>
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#include <time.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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/* My Borland/VC++ compiler do not have this file */
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#if !defined(__BORLANDC__) && !defined(_MSC_VER)
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#include <unistd.h>
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#endif
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#ifdef __WIN32__ /* The Windows way of getting a temp file needs windows.h*/
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#include <windows.h>
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#endif
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using namespace std;
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namespace POSIX {
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void TimeT_To_FILETIME(time_t t, ALT_FILETIME *pft ) {
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uint64_t ll = (((uint64_t)t) *10000000L) + (((uint64_t)116444736L) * 1000000000L);
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pft->dwLowDateTime = (uint32_t)(ll & 0xFFFFFFFF);
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pft->dwHighDateTime = (uint32_t)((ll>>32)&0xFFFFFFFF);
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}
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#ifdef __WIN32__
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/* do it the old way on Win32, because POSIX does not get timezone stuff right */
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ALT_FILETIME getFileTime(const TCHAR* sFileName) {
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FILETIME temp;
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GetSystemTimeAsFileTime(&temp);
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HANDLE h = CreateFile(sFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
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if (h == INVALID_HANDLE_VALUE) {
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terr << _T("Cannot read file time of ") << sFileName << _T("\n");
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} else {
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GetFileTime(h, NULL, NULL, &temp);
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CloseHandle(h);
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}
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ALT_FILETIME result;
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result.dwHighDateTime = temp.dwHighDateTime;
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result.dwLowDateTime = temp.dwLowDateTime;
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return result;
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}
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#else
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ALT_FILETIME getFileTime(const char* sFileName) {
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struct stat buf;
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/* get current time first as a fall-back */
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time_t currentTime = time(NULL);
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if(stat(sFileName, &buf)) {
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terr << _T("Cannot read file time of ") << sFileName << _T("\n");
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} else {
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/* get the time from the file */
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currentTime = buf.st_mtime;
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}
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ALT_FILETIME result;
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TimeT_To_FILETIME(currentTime, &result);
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return result;
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}
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#endif
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uint32_t getFileSize(const TCHAR* sFileName) {
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std::ifstream f;
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f.open(sFileName, std::ios_base::binary | std::ios_base::in);
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if (!f.good() || f.eof() || !f.is_open()) {
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throw _T("File could not be read (getFileSize)");
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}
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f.seekg(0, std::ios_base::beg);
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std::ifstream::pos_type begin_pos = f.tellg();
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f.seekg(0, std::ios_base::end);
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return static_cast<int>(f.tellg() - begin_pos);
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}
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#ifdef __WIN32__
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tstring getTempFile() {
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TCHAR buffer[MAX_PATH];
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if(GetTempFileName(_T("."),_T("vpatch"),0,buffer) == 0) {
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terr << _T("Cannot create temporary filename");
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}
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return tstring(buffer);
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}
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#else
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tstring getTempFile() {
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TCHAR t[] = _T("/tmp/genpatXXXXXX");
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mode_t old_umask = umask(0077);
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int fd = mkstemp(t);
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if (fd == -1) {
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terr << _T("Cannot create temporary filename");
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return _T("");
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}
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close(fd);
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umask(old_umask);
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return tstring(t);
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}
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#endif
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}
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