reactos/base/applications/regedit/regedit.c
Katayama Hirofumi MZ be8a6f8af1
[REGEDIT] Improve error handling (#5833)
- Don't exit the main program on error.
- Improve output_message function.
- Use output_message instead of some
  error_exit function calls.
CORE-19188
2023-10-26 19:57:42 +09:00

316 lines
8.6 KiB
C

/*
* Windows regedit.exe registry editor implementation.
*
* Copyright 2002 Andriy Palamarchuk
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __REACTOS__
#include <stdlib.h>
#include <windows.h>
#include <commctrl.h>
#include <shellapi.h>
#include "wine/debug.h"
#include "main.h"
#else
#include "regedit.h"
#endif
WINE_DEFAULT_DEBUG_CHANNEL(regedit);
static void output_writeconsole(const WCHAR *str, DWORD wlen)
{
#ifdef __REACTOS__
/* This is win32gui application, don't ever try writing to console.
* For the console version we have a separate reg.exe application. */
MessageBoxW(NULL, str, NULL, MB_ICONERROR);
#else
DWORD count;
if (!WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), str, wlen, &count, NULL))
{
DWORD len;
char *msgA;
/* WriteConsole() fails on Windows if its output is redirected. If this occurs,
* we should call WriteFile() with OEM code page.
*/
len = WideCharToMultiByte(GetOEMCP(), 0, str, wlen, NULL, 0, NULL, NULL);
msgA = malloc(len);
if (!msgA) return;
WideCharToMultiByte(GetOEMCP(), 0, str, wlen, msgA, len, NULL, NULL);
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), msgA, len, &count, FALSE);
free(msgA);
}
#endif
}
static void output_formatstring(const WCHAR *fmt, va_list va_args)
{
WCHAR *str;
DWORD len;
#ifdef __REACTOS__
SetLastError(NO_ERROR);
#endif
len = FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ALLOCATE_BUFFER,
fmt, 0, 0, (WCHAR *)&str, 0, &va_args);
#ifdef __REACTOS__
if (len == 0 && GetLastError() != NO_ERROR)
#else
if (len == 0 && GetLastError() != ERROR_NO_WORK_DONE)
#endif
{
WINE_FIXME("Could not format string: le=%lu, fmt=%s\n", GetLastError(), wine_dbgstr_w(fmt));
return;
}
output_writeconsole(str, len);
LocalFree(str);
}
void WINAPIV output_message(unsigned int id, ...)
{
WCHAR fmt[1536];
va_list va_args;
if (!LoadStringW(GetModuleHandleW(NULL), id, fmt, ARRAY_SIZE(fmt)))
{
WINE_FIXME("LoadString failed with %ld\n", GetLastError());
return;
}
va_start(va_args, id);
output_formatstring(fmt, va_args);
va_end(va_args);
}
void WINAPIV error_exit(unsigned int id, ...)
{
WCHAR fmt[1536];
va_list va_args;
if (!LoadStringW(GetModuleHandleW(NULL), id, fmt, ARRAY_SIZE(fmt)))
{
#ifndef __REACTOS__
WINE_FIXME("LoadString failed with %lu\n", GetLastError());
#endif
return;
}
va_start(va_args, id);
output_formatstring(fmt, va_args);
va_end(va_args);
exit(0); /* regedit.exe always terminates with error code zero */
}
typedef enum {
ACTION_ADD, ACTION_EXPORT, ACTION_DELETE
} REGEDIT_ACTION;
#ifdef __REACTOS__
static void PerformRegAction(REGEDIT_ACTION action, WCHAR **argv, int *i, BOOL silent)
#else
static void PerformRegAction(REGEDIT_ACTION action, WCHAR **argv, int *i)
#endif
{
switch (action) {
case ACTION_ADD: {
WCHAR *filename = argv[*i];
WCHAR *realname = NULL;
FILE *reg_file;
#ifdef __REACTOS__
/* Request import confirmation */
if (!silent)
{
WCHAR szText[512];
int choice;
UINT mbType = MB_YESNO;
LoadStringW(hInst, IDS_IMPORT_PROMPT, szText, ARRAY_SIZE(szText));
if (argv[*i + 1] != NULL)
{
/* Enable three buttons if there's another file coming */
mbType = MB_YESNOCANCEL;
}
choice = InfoMessageBox(NULL, mbType | MB_ICONQUESTION, szTitle, szText, filename);
switch (choice)
{
case IDNO:
return;
case IDCANCEL:
/* The cancel case is useful if the user is importing more than one registry file
* at a time, and wants to back out anytime during the import process. This way, the
* user doesn't have to resort to ending the regedit process abruptly just to cancel
* the operation.
* To achieve this, we skip all further command line arguments.
*/
*i = INT_MAX - 1;
return;
default:
break;
}
}
#endif
if (!lstrcmpW(filename, L"-"))
reg_file = stdin;
else
{
int size;
size = SearchPathW(NULL, filename, NULL, 0, NULL, NULL);
if (size > 0)
{
realname = malloc(size * sizeof(WCHAR));
size = SearchPathW(NULL, filename, NULL, size, realname, NULL);
}
if (size == 0)
{
output_message(STRING_FILE_NOT_FOUND, filename);
free(realname);
return;
}
reg_file = _wfopen(realname, L"rb");
if (reg_file == NULL)
{
_wperror(L"regedit");
output_message(STRING_CANNOT_OPEN_FILE, filename);
free(realname);
return;
}
}
import_registry_file(reg_file);
if (realname)
{
free(realname);
fclose(reg_file);
}
break;
}
case ACTION_DELETE:
delete_registry_key(argv[*i]);
break;
case ACTION_EXPORT: {
WCHAR *filename = argv[*i];
WCHAR *key_name = argv[++(*i)];
if (key_name && *key_name)
export_registry_key(filename, key_name, REG_FORMAT_5);
else
export_registry_key(filename, NULL, REG_FORMAT_5);
break;
}
default:
#ifdef __REACTOS__
output_message(STRING_UNHANDLED_ACTION);
#else
error_exit(STRING_UNHANDLED_ACTION);
#endif
break;
}
}
BOOL ProcessCmdLine(WCHAR *cmdline)
{
WCHAR **argv;
int argc, i;
REGEDIT_ACTION action = ACTION_ADD;
#ifdef __REACTOS__
BOOL silent = FALSE;
#endif
argv = CommandLineToArgvW(cmdline, &argc);
if (!argv)
return FALSE;
if (argc == 1)
{
LocalFree(argv);
return FALSE;
}
for (i = 1; i < argc; i++)
{
if (argv[i][0] != '/' && argv[i][0] != '-')
break; /* No flags specified. */
if (!argv[i][1] && argv[i][0] == '-')
break; /* '-' is a filename. It indicates we should use stdin. */
if (argv[i][1] && argv[i][2] && argv[i][2] != ':')
break; /* This is a file path beginning with '/'. */
switch (towupper(argv[i][1]))
{
case '?':
error_exit(STRING_USAGE);
break;
case 'D':
action = ACTION_DELETE;
break;
case 'E':
action = ACTION_EXPORT;
break;
case 'C':
case 'L':
case 'M':
case 'R':
/* unhandled */;
break;
case 'S':
#ifdef __REACTOS__
silent = TRUE;
break;
#endif
case 'V':
/* ignored */;
break;
default:
output_message(STRING_INVALID_SWITCH, argv[i]);
error_exit(STRING_HELP);
}
}
if (i == argc)
{
switch (action)
{
case ACTION_ADD:
case ACTION_EXPORT:
output_message(STRING_NO_FILENAME);
break;
case ACTION_DELETE:
output_message(STRING_NO_REG_KEY);
break;
}
error_exit(STRING_HELP);
}
for (; i < argc; i++)
#ifdef __REACTOS__
PerformRegAction(action, argv, &i, silent);
#else
PerformRegAction(action, argv, &i);
#endif
LocalFree(argv);
return TRUE;
}