119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
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__ __ _
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___\ \/ /_ __ __ _| |_
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/ _ \\ /| '_ \ / _` | __|
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| __// \| |_) | (_| | |_
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\___/_/\_\ .__/ \__,_|\__|
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|_| XML parser
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Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
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Copyright (c) 2000-2017 Expat development team
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Licensed under the MIT license:
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to permit
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persons to whom the Software is furnished to do so, subject to the
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following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#define STRICT 1
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#define WIN32_LEAN_AND_MEAN 1
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#ifdef XML_UNICODE_WCHAR_T
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# ifndef XML_UNICODE
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# define XML_UNICODE
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# endif
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#endif
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#ifdef XML_UNICODE
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# define UNICODE
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# define _UNICODE
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#endif /* XML_UNICODE */
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#include <windows.h>
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#include <stdio.h>
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#include <tchar.h>
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#include "filemap.h"
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static void win32perror(const TCHAR *);
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int
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filemap(const TCHAR *name,
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void (*processor)(const void *, size_t, const TCHAR *, void *arg),
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void *arg) {
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HANDLE f;
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HANDLE m;
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DWORD size;
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DWORD sizeHi;
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void *p;
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f = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
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FILE_FLAG_SEQUENTIAL_SCAN, NULL);
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if (f == INVALID_HANDLE_VALUE) {
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win32perror(name);
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return 0;
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}
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size = GetFileSize(f, &sizeHi);
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if (size == (DWORD)-1) {
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win32perror(name);
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CloseHandle(f);
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return 0;
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}
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if (sizeHi || (size > XML_MAX_CHUNK_LEN)) {
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CloseHandle(f);
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return 2; /* Cannot be passed to XML_Parse in one go */
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}
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/* CreateFileMapping barfs on zero length files */
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if (size == 0) {
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static const char c = '\0';
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processor(&c, 0, name, arg);
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CloseHandle(f);
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return 1;
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}
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m = CreateFileMapping(f, NULL, PAGE_READONLY, 0, 0, NULL);
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if (m == NULL) {
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win32perror(name);
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CloseHandle(f);
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return 0;
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}
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p = MapViewOfFile(m, FILE_MAP_READ, 0, 0, 0);
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if (p == NULL) {
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win32perror(name);
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CloseHandle(m);
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CloseHandle(f);
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return 0;
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}
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processor(p, size, name, arg);
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UnmapViewOfFile(p);
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CloseHandle(m);
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CloseHandle(f);
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return 1;
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}
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static void
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win32perror(const TCHAR *s) {
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LPVOID buf;
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if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&buf, 0,
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NULL)) {
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_ftprintf(stderr, _T("%s: %s"), s, buf);
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fflush(stderr);
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LocalFree(buf);
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} else
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_ftprintf(stderr, _T("%s: unknown Windows error\n"), s);
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}
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