330 lines
8.7 KiB
C
330 lines
8.7 KiB
C
/*
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* Copyright 2016-2017, 2021 Hugh McMaster
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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 under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdio.h>
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#include <windows.h>
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#include <wine/heap.h>
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#include "reg.h"
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static const WCHAR *reg_type_to_wchar(DWORD type)
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{
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int i, array_size = ARRAY_SIZE(type_rels);
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for (i = 0; i < array_size; i++)
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{
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if (type == type_rels[i].type)
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return type_rels[i].name;
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}
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return NULL;
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}
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static WCHAR *reg_data_to_wchar(DWORD type, const BYTE *src, DWORD size_bytes)
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{
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WCHAR *buffer = NULL;
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int i;
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switch (type)
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{
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case REG_SZ:
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case REG_EXPAND_SZ:
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buffer = heap_xalloc(size_bytes);
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lstrcpyW(buffer, (WCHAR *)src);
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break;
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case REG_NONE:
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case REG_BINARY:
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{
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WCHAR *ptr;
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static const WCHAR fmt[] = {'%','0','2','X',0};
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buffer = heap_xalloc((size_bytes * 2 + 1) * sizeof(WCHAR));
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ptr = buffer;
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for (i = 0; i < size_bytes; i++)
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ptr += swprintf(ptr, 3, fmt, src[i]);
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break;
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}
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case REG_DWORD:
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/* case REG_DWORD_LITTLE_ENDIAN: */
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case REG_DWORD_BIG_ENDIAN:
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{
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const int zero_x_dword = 10;
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static const WCHAR fmt[] = {'0','x','%','x',0};
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buffer = heap_xalloc((zero_x_dword + 1) * sizeof(WCHAR));
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swprintf(buffer, zero_x_dword + 1, fmt, *(DWORD *)src);
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break;
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}
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case REG_MULTI_SZ:
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{
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const int two_wchars = 2 * sizeof(WCHAR);
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DWORD tmp_size;
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const WCHAR *tmp = (const WCHAR *)src;
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int len, destindex;
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if (size_bytes <= two_wchars)
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{
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buffer = heap_xalloc(sizeof(WCHAR));
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*buffer = 0;
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return buffer;
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}
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tmp_size = size_bytes - two_wchars; /* exclude both null terminators */
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buffer = heap_xalloc(tmp_size * 2 + sizeof(WCHAR));
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len = tmp_size / sizeof(WCHAR);
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for (i = 0, destindex = 0; i < len; i++, destindex++)
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{
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if (tmp[i])
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buffer[destindex] = tmp[i];
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else
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{
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buffer[destindex++] = '\\';
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buffer[destindex] = '0';
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}
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}
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buffer[destindex] = 0;
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break;
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}
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}
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return buffer;
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}
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static const WCHAR newlineW[] = {'\n',0};
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static void output_value(const WCHAR *value_name, DWORD type, BYTE *data, DWORD data_size)
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{
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static const WCHAR fmt[] = {' ',' ',' ',' ','%','1',0};
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WCHAR defval[32];
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WCHAR *reg_data;
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if (value_name && value_name[0])
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output_string(fmt, value_name);
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else
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{
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LoadStringW(GetModuleHandleW(NULL), STRING_DEFAULT_VALUE, defval, ARRAY_SIZE(defval));
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output_string(fmt, defval);
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}
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output_string(fmt, reg_type_to_wchar(type));
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if (data)
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{
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reg_data = reg_data_to_wchar(type, data, data_size);
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output_string(fmt, reg_data);
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heap_free(reg_data);
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}
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else
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{
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LoadStringW(GetModuleHandleW(NULL), STRING_VALUE_NOT_SET, defval, ARRAY_SIZE(defval));
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output_string(fmt, defval);
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}
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output_string(newlineW);
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}
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static unsigned int num_values_found = 0;
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static int query_value(HKEY key, WCHAR *value_name, WCHAR *path, BOOL recurse)
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{
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LONG rc;
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DWORD max_data_bytes = 2048, data_size;
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DWORD subkey_len;
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DWORD type, path_len, i;
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BYTE *data;
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WCHAR fmt[] = {'%','1','\n',0};
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WCHAR *subkey_name, *subkey_path;
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HKEY subkey;
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data = heap_xalloc(max_data_bytes);
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for (;;)
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{
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data_size = max_data_bytes;
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rc = RegQueryValueExW(key, value_name, NULL, &type, data, &data_size);
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if (rc == ERROR_MORE_DATA)
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{
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max_data_bytes = data_size;
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data = heap_xrealloc(data, max_data_bytes);
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}
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else break;
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}
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if (rc == ERROR_SUCCESS)
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{
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output_string(fmt, path);
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output_value(value_name, type, data, data_size);
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output_string(newlineW);
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num_values_found++;
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}
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heap_free(data);
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if (!recurse)
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{
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if (rc == ERROR_FILE_NOT_FOUND)
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{
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if (value_name && *value_name)
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{
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output_message(STRING_CANNOT_FIND);
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return 1;
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}
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output_string(fmt, path);
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output_value(NULL, REG_SZ, NULL, 0);
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}
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return 0;
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}
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subkey_name = heap_xalloc(MAX_SUBKEY_LEN * sizeof(WCHAR));
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path_len = lstrlenW(path);
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i = 0;
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for (;;)
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{
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subkey_len = MAX_SUBKEY_LEN;
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rc = RegEnumKeyExW(key, i, subkey_name, &subkey_len, NULL, NULL, NULL, NULL);
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if (rc == ERROR_SUCCESS)
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{
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subkey_path = build_subkey_path(path, path_len, subkey_name, subkey_len);
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if (!RegOpenKeyExW(key, subkey_name, 0, KEY_READ, &subkey))
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{
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query_value(subkey, value_name, subkey_path, recurse);
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RegCloseKey(subkey);
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}
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heap_free(subkey_path);
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i++;
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}
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else break;
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}
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heap_free(subkey_name);
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return 0;
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}
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static int query_all(HKEY key, WCHAR *path, BOOL recurse)
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{
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LONG rc;
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DWORD max_value_len = 256, value_len;
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DWORD max_data_bytes = 2048, data_size;
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DWORD subkey_len;
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DWORD i, type, path_len;
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WCHAR fmt[] = {'%','1','\n',0};
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WCHAR fmt_path[] = {'%','1','\\','%','2','\n',0};
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WCHAR *value_name, *subkey_name, *subkey_path;
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BYTE *data;
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HKEY subkey;
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output_string(fmt, path);
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value_name = heap_xalloc(max_value_len * sizeof(WCHAR));
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data = heap_xalloc(max_data_bytes);
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i = 0;
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for (;;)
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{
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value_len = max_value_len;
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data_size = max_data_bytes;
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rc = RegEnumValueW(key, i, value_name, &value_len, NULL, &type, data, &data_size);
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if (rc == ERROR_SUCCESS)
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{
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output_value(value_name, type, data, data_size);
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i++;
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}
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else if (rc == ERROR_MORE_DATA)
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{
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if (data_size > max_data_bytes)
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{
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max_data_bytes = data_size;
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data = heap_xrealloc(data, max_data_bytes);
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}
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else
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{
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max_value_len *= 2;
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value_name = heap_xrealloc(value_name, max_value_len * sizeof(WCHAR));
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}
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}
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else break;
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}
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heap_free(data);
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heap_free(value_name);
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if (i || recurse)
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output_string(newlineW);
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subkey_name = heap_xalloc(MAX_SUBKEY_LEN * sizeof(WCHAR));
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path_len = lstrlenW(path);
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i = 0;
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for (;;)
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{
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subkey_len = MAX_SUBKEY_LEN;
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rc = RegEnumKeyExW(key, i, subkey_name, &subkey_len, NULL, NULL, NULL, NULL);
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if (rc == ERROR_SUCCESS)
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{
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if (recurse)
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{
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subkey_path = build_subkey_path(path, path_len, subkey_name, subkey_len);
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if (!RegOpenKeyExW(key, subkey_name, 0, KEY_READ, &subkey))
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{
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query_all(subkey, subkey_path, recurse);
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RegCloseKey(subkey);
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}
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heap_free(subkey_path);
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}
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else output_string(fmt_path, path, subkey_name);
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i++;
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}
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else break;
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}
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heap_free(subkey_name);
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if (i && !recurse)
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output_string(newlineW);
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return 0;
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}
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int reg_query(HKEY root, WCHAR *path, WCHAR *key_name, WCHAR *value_name,
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BOOL value_empty, BOOL recurse)
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{
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HKEY key;
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int ret;
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if (RegOpenKeyExW(root, path, 0, KEY_READ, &key) != ERROR_SUCCESS)
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{
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output_message(STRING_CANNOT_FIND);
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return 1;
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}
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output_string(newlineW);
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if (value_name || value_empty)
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{
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ret = query_value(key, value_name, key_name, recurse);
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if (recurse)
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output_message(STRING_MATCHES_FOUND, num_values_found);
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}
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else
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ret = query_all(key, key_name, recurse);
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RegCloseKey(key);
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return ret;
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}
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