474 lines
8.8 KiB
C
474 lines
8.8 KiB
C
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/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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delrp.c
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This module contains a simple program to blatantly delete a reparse point
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of any kind.
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Author:
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Felipe Cabrera (Cabrera) 11-Jul-1997
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Revision History:
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--*/
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#define UNICODE
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#define _UNICODE
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#include <stdio.h>
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#include <stdlib.h> // exit
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#include <io.h> // _get_osfhandle
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <ntioapi.h>
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#include <windows.h>
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#include <locale.h> // setlocale
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//
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//
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// Functions forward referenced.
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//
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void
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SzToWsz (
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OUT WCHAR *Unicode,
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IN char *Ansi
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);
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void
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ScanArgs (
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int argc,
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char **argv
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);
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void
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__cdecl
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printmessage (
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DWORD messageID,
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...
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);
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void
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__cdecl
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DisplayMsg (
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DWORD MsgNum,
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...
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);
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int
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FileIsConsole (
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int fh
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);
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//
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// I/O stream handles and variables.
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//
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HANDLE hInput;
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HANDLE hOutput;
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HANDLE hError;
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#define STDIN 0
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#define STDOUT 1
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#define STDERR 2
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BOOL ConsoleInput;
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BOOL ConsoleOutput;
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BOOL ConsoleError;
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//
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// Core control state vars
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//
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BOOLEAN NeedHelp;
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#include "delrpmsg.h"
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TCHAR Buf[1024]; // for displaying stuff
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//
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// Main
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//
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void
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__cdecl
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main(
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int argc,
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char **argv
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)
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/*++
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Routine Description:
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Main procedure for pentnt.
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First, we call a series of routines that build a state vector
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in some booleans.
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We'll then act on these control variables:
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NeedHelp - User has asked for help, or made a command error
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Arguments:
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argc - count of arguments, including the name of our proggram
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argv - argument list - see command line syntax above
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Return Value:
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Exit(0) - the file was deleted
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Exit(1) - a problem ocurred.
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--*/
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{
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CHAR lBuf[16];
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DWORD dwCodePage;
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LANGID LangId;
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NTSTATUS Status = STATUS_SUCCESS;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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UNICODE_STRING UnicodeName;
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IO_STATUS_BLOCK IoStatusBlock;
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BOOLEAN TranslationStatus;
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PVOID FreeBuffer;
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FILE_DISPOSITION_INFORMATION Disposition = {TRUE};
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WCHAR WFileName[MAX_PATH];
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//
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// Build up state vector in global booleans.
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//
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ScanArgs(argc, argv);
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//
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// printf( "argc = %d NeedHelp = %d\n", argc, NeedHelp );
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//
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//
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// Since FormatMessage checks the current TEB's locale, and the Locale for
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// CHCP is initialized when the message class is initialized, the TEB has to
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// be updated after the code page is changed successfully.
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// Why are we doing this, you ask. Well, the FE guys have plans to add
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// more than one set of language resources to this module, but not all
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// the possible resources. So this limited set is what they plan for.
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// If FormatMessage can't find the right language, it falls back to
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// something hopefully useful.
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//
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dwCodePage = GetConsoleOutputCP();
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sprintf(lBuf, ".%d", dwCodePage);
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switch( dwCodePage )
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{
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case 437:
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LangId = MAKELANGID( LANG_ENGLISH, SUBLANG_ENGLISH_US );
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break;
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case 932:
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LangId = MAKELANGID( LANG_JAPANESE, SUBLANG_DEFAULT );
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break;
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case 949:
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LangId = MAKELANGID( LANG_KOREAN, SUBLANG_KOREAN );
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break;
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case 936:
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LangId = MAKELANGID( LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED );
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break;
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case 950:
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LangId = MAKELANGID( LANG_CHINESE, SUBLANG_CHINESE_TRADITIONAL );
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break;
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default:
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LangId = MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT );
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lBuf[0] = '\0';
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break;
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}
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SetThreadLocale( MAKELCID(LangId, SORT_DEFAULT) );
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setlocale(LC_ALL, lBuf);
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//
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// Set the appropriate handles.
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//
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hInput = GetStdHandle(STD_INPUT_HANDLE);
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ConsoleInput = FileIsConsole(STDIN);
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hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
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ConsoleOutput = FileIsConsole(STDOUT);
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hError = GetStdHandle(STD_ERROR_HANDLE);
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ConsoleError = FileIsConsole(STDERR);
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//
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// OK, we know the state of the command, do work
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//
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//
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// If they asked for help, or did something that indicates they don't
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// understand how the program works, print help and exit.
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//
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if (NeedHelp) {
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printmessage( MSG_DELRP_HELP );
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exit(1);
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}
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//
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// Change the string to Unicode and pass down to open the file.
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//
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SzToWsz( WFileName, argv[1] );
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TranslationStatus = RtlDosPathNameToNtPathName_U(
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WFileName,
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&UnicodeName,
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NULL,
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NULL
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);
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if (!TranslationStatus) {
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printmessage( MSG_DELRP_WRONG_NAME );
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exit(1);
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}
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FreeBuffer = UnicodeName.Buffer;
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InitializeObjectAttributes(
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&ObjectAttributes,
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&UnicodeName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL
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);
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//
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// printf( "Transformed unicode str is %Z\n", &UnicodeName );
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//
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//
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// Open the file for delete access.
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// Inhibit the reparse behavior using FILE_OPEN_REPARSE_POINT.
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// This will get a handle to the entity whether the appropriate filter is or not in place.
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//
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Status = NtOpenFile(
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&Handle,
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(ACCESS_MASK)DELETE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_OPEN_FOR_BACKUP_INTENT | FILE_OPEN_REPARSE_POINT
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);
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if (!NT_SUCCESS(Status)) {
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SzToWsz( WFileName, argv[1] );
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swprintf(&Buf[0], TEXT("%s"), WFileName);
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DisplayMsg(MSG_DELRP_OPEN_FAILED_NL, Buf);
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// printmessage( MSG_DELRP_OPEN_FAILED );
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RtlFreeHeap(RtlProcessHeap(), 0, FreeBuffer);
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exit(1);
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}
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RtlFreeHeap(RtlProcessHeap(), 0, FreeBuffer);
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//
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// Delete the file
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//
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Status = NtSetInformationFile(
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Handle,
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&IoStatusBlock,
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&Disposition,
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sizeof(Disposition),
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FileDispositionInformation
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);
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NtClose(Handle);
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if (!NT_SUCCESS(Status)) {
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printmessage( MSG_DELRP_DELETE_FAILED );
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exit(1);
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}
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exit(0);
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} // main
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VOID
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ScanArgs(
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int argc,
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char **argv
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)
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/*++
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Routine Description:
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ScanArgs - parse command line arguments, and set control flags
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to reflect what we find.
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Sets NeedHelp.
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Arguments:
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argc - count of command line args
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argv - argument vector
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Return Value:
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--*/
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{
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int i;
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NeedHelp = FALSE;
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if ((argc == 1) ||
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(argc > 3)) {
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NeedHelp = TRUE;
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goto done;
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}
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//
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// At this point argc == 2
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//
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if ((argv[1][0] == '/') &&
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(argv[1][1] == '?') &&
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(strlen(argv[1]) == 2)) {
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NeedHelp = TRUE;
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goto done;
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}
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done:
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return;
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} // ScanArgs
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//
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// Changing a file name to wide characters.
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//
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void
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SzToWsz (
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OUT WCHAR *Unicode,
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IN char *Ansi
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)
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{
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while (*Unicode++ = *Ansi++)
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;
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return;
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} // SzToWsz
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//
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// Call FormatMessage and dump the result. All messages to Stdout
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//
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void
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__cdecl
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printmessage (
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DWORD messageID,
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...
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)
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{
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unsigned short messagebuffer[4096];
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va_list ap;
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va_start(ap, messageID);
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FormatMessage(FORMAT_MESSAGE_FROM_HMODULE, NULL, messageID, 0,
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messagebuffer, 4095, &ap);
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wprintf(messagebuffer);
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va_end(ap);
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} // printmessage
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TCHAR DisplayBuffer[4096];
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CHAR DisplayBuffer2[4096];
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|
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void
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__cdecl
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DisplayMsg (
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|||
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DWORD MsgNum,
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...
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|||
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)
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{
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DWORD len, bytes_written;
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BOOL success;
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DWORD status;
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va_list ap;
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va_start(ap, MsgNum);
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len = FormatMessage(FORMAT_MESSAGE_FROM_HMODULE, NULL, MsgNum, 0,
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DisplayBuffer, 4096, &ap);
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if (ConsoleOutput) {
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success = WriteConsole(hOutput, (LPVOID)DisplayBuffer, len,
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&bytes_written, NULL);
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} else {
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CharToOem(DisplayBuffer, DisplayBuffer2);
|
|||
|
|
success = WriteFile(hOutput, (LPVOID)DisplayBuffer2, len,
|
|||
|
|
&bytes_written, NULL);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!success || bytes_written != len) {
|
|||
|
|
status = GetLastError();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
va_end(ap);
|
|||
|
|
} // DisplayMsg
|
|||
|
|
|
|||
|
|
|
|||
|
|
int
|
|||
|
|
FileIsConsole(int fh)
|
|||
|
|
{
|
|||
|
|
unsigned htype;
|
|||
|
|
DWORD dwMode;
|
|||
|
|
HANDLE hFile;
|
|||
|
|
|
|||
|
|
hFile = (HANDLE)_get_osfhandle(fh);
|
|||
|
|
htype = GetFileType(hFile);
|
|||
|
|
htype &= ~FILE_TYPE_REMOTE;
|
|||
|
|
|
|||
|
|
if (FILE_TYPE_CHAR == htype) {
|
|||
|
|
|
|||
|
|
switch (fh) {
|
|||
|
|
case STDIN:
|
|||
|
|
hFile = GetStdHandle(STD_INPUT_HANDLE);
|
|||
|
|
break;
|
|||
|
|
case STDOUT:
|
|||
|
|
hFile = GetStdHandle(STD_OUTPUT_HANDLE);
|
|||
|
|
break;
|
|||
|
|
case STDERR:
|
|||
|
|
hFile = GetStdHandle(STD_ERROR_HANDLE);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (GetConsoleMode(hFile, &dwMode)) {
|
|||
|
|
return TRUE;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return FALSE;
|
|||
|
|
|
|||
|
|
} // FileIsConsole
|