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4fa46e3caa
Bug report and proposed patch at: http://lists.cairographics.org/archives/cairo/2007-December/012529.html On Windows the tmpfile() function creates the file in the root directory. This will fail if the user does not have write access to the root directory. Implement _cairo_win32_tmpfile() that is #defined as tmpfile() on Windows. This function uses GetTempPath() and GetTempFileName() to create the temporary file. CreateFile() is used to open the file so the DELETE_ON_CLOSE flag can be set.
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
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/* Cairo - a vector graphics library with display and print output
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*
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* Copyright © 2007 Adrian Johnson
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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 either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Adrian Johnson.
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*
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* Contributor(s):
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* Adrian Johnson <ajohnson@redneon.com>
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*/
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#define WIN32_LEAN_AND_MEAN
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/* We require Windows 2000 features such as ETO_PDY */
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#if !defined(WINVER) || (WINVER < 0x0500)
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# define WINVER 0x0500
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#endif
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#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
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# define _WIN32_WINNT 0x0500
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#endif
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#include "cairoint.h"
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#include <windows.h>
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#include <io.h>
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/* tmpfile() replacment for Windows.
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*
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* On Windows tmpfile() creates the file in the root directory. This
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* may fail due to unsufficient privileges.
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*/
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FILE *
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_cairo_win32_tmpfile (void)
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{
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DWORD path_len;
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WCHAR path_name[MAX_PATH + 1];
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WCHAR file_name[MAX_PATH + 1];
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HANDLE handle;
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int fd;
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FILE *fp;
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path_len = GetTempPathW (MAX_PATH, path_name);
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if (path_len <= 0 || path_len >= MAX_PATH)
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return NULL;
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if (GetTempFileNameW (path_name, L"ps_", 0, file_name) == 0)
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return NULL;
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handle = CreateFileW (file_name,
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GENERIC_READ | GENERIC_WRITE,
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0,
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NULL,
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CREATE_ALWAYS,
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FILE_ATTRIBUTE_NORMAL | FILE_FLAG_DELETE_ON_CLOSE,
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NULL);
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if (handle == INVALID_HANDLE_VALUE) {
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DeleteFileW (file_name);
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return NULL;
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}
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fd = _open_osfhandle((intptr_t) handle, 0);
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if (fd < 0) {
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CloseHandle (handle);
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return NULL;
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}
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fp = fdopen(fd, "w+b");
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if (fp == NULL) {
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_close(fd);
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return NULL;
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}
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return fp;
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}
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