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Reactos
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211/* * Copyright 2016-2017, 2021 Hugh McMaster * * 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 */
#include "reg.h"
static BOOL op_delete_key = TRUE;
static void output_error(LONG rc){ if (rc == ERROR_FILE_NOT_FOUND) { if (op_delete_key) output_message(STRING_KEY_NONEXIST); else output_message(STRING_VALUE_NONEXIST); } else { output_message(STRING_ACCESS_DENIED); }}
static int run_delete(HKEY root, WCHAR *path, REGSAM sam, WCHAR *key_name, WCHAR *value_name, BOOL value_empty, BOOL value_all, BOOL force){ LONG rc; HKEY hkey;
if (!force) { BOOL ret;
if (value_name || value_empty) ret = ask_confirm(STRING_DELETE_VALUE, value_name); else if (value_all) ret = ask_confirm(STRING_DELETE_VALUEALL, key_name); else ret = ask_confirm(STRING_DELETE_SUBKEY, key_name);
if (!ret) { output_message(STRING_CANCELLED); return 0; } }
if ((rc = RegOpenKeyExW(root, path, 0, KEY_READ|KEY_SET_VALUE|sam, &hkey))) { output_error(rc); return 1; }
/* Delete registry key if no /v* option is given */ if (!value_name && !value_empty && !value_all) { if ((rc = RegDeleteTreeW(hkey, NULL))) { RegCloseKey(hkey); output_error(rc); return 1; }
RegDeleteKeyW(hkey, L""); RegCloseKey(hkey);
output_message(STRING_SUCCESS); return 0; }
op_delete_key = FALSE;
if (value_all) { DWORD max_value_len = 256, value_len; WCHAR *value_name;
value_name = malloc(max_value_len * sizeof(WCHAR));
while (1) { value_len = max_value_len; rc = RegEnumValueW(hkey, 0, value_name, &value_len, NULL, NULL, NULL, NULL); if (rc == ERROR_SUCCESS) { rc = RegDeleteValueW(hkey, value_name); if (rc != ERROR_SUCCESS) { free(value_name); RegCloseKey(hkey); output_message(STRING_VALUEALL_FAILED, key_name); output_error(rc); return 1; } } else if (rc == ERROR_MORE_DATA) { max_value_len *= 2; value_name = realloc(value_name, max_value_len * sizeof(WCHAR)); } else break; } free(value_name); } else if (value_name || value_empty) { if ((rc = RegDeleteValueW(hkey, value_name))) { RegCloseKey(hkey); output_error(rc); return 1; } }
RegCloseKey(hkey); output_message(STRING_SUCCESS); return 0;}
int reg_delete(int argc, WCHAR *argvW[]){ HKEY root; WCHAR *path, *key_name, *value_name = NULL; BOOL value_all = FALSE, value_empty = FALSE, force = FALSE; REGSAM sam = 0; int i;
if (!parse_registry_key(argvW[2], &root, &path)) return 1;
for (i = 3; i < argc; i++) { WCHAR *str;
if (argvW[i][0] != '/' && argvW[i][0] != '-') goto invalid;
str = &argvW[i][1];
if (!lstrcmpiW(str, L"va")) { if (value_all) goto invalid; value_all = TRUE; continue; } else if (!lstrcmpiW(str, L"ve")) { if (value_empty) goto invalid; value_empty = TRUE; continue; } else if (!lstrcmpiW(str, L"reg:32")) { if (sam & KEY_WOW64_32KEY) goto invalid; sam |= KEY_WOW64_32KEY; continue; } else if (!lstrcmpiW(str, L"reg:64")) { if (sam & KEY_WOW64_64KEY) goto invalid; sam |= KEY_WOW64_64KEY; continue; } else if (!str[0] || str[1]) goto invalid;
switch (towlower(*str)) { case 'v': if (value_name || !(value_name = argvW[++i])) goto invalid; break; case 'f': if (force) goto invalid; force = TRUE; break; default: goto invalid; } }
if ((value_name && value_empty) || (value_name && value_all) || (value_empty && value_all)) goto invalid;
if (sam == (KEY_WOW64_32KEY|KEY_WOW64_64KEY)) goto invalid;
key_name = get_long_key(root, path);
return run_delete(root, path, sam, key_name, value_name, value_empty, value_all, force);
invalid: output_message(STRING_INVALID_SYNTAX); output_message(STRING_FUNC_HELP, _wcsupr(argvW[1])); return 1;}