ReactOS 0.4.15-dev-5666-gc548b97
delete.c
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1/*
2 * Copyright 2016-2017, 2021 Hugh McMaster
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 */
18
19#include "reg.h"
20
22
23static void output_error(LONG rc)
24{
25 if (rc == ERROR_FILE_NOT_FOUND)
26 {
27 if (op_delete_key)
29 else
31 }
32 else
33 {
35 }
36}
37
38static int run_delete(HKEY root, WCHAR *path, REGSAM sam, WCHAR *key_name, WCHAR *value_name,
39 BOOL value_empty, BOOL value_all, BOOL force)
40{
41 LONG rc;
42 HKEY hkey;
43
44 if (!force)
45 {
46 BOOL ret;
47
48 if (value_name || value_empty)
49 ret = ask_confirm(STRING_DELETE_VALUE, value_name);
50 else if (value_all)
52 else
54
55 if (!ret)
56 {
58 return 0;
59 }
60 }
61
62 if ((rc = RegOpenKeyExW(root, path, 0, KEY_READ|KEY_SET_VALUE|sam, &hkey)))
63 {
64 output_error(rc);
65 return 1;
66 }
67
68 /* Delete registry key if no /v* option is given */
69 if (!value_name && !value_empty && !value_all)
70 {
71 if ((rc = RegDeleteTreeW(hkey, NULL)))
72 {
73 RegCloseKey(hkey);
74 output_error(rc);
75 return 1;
76 }
77
78 RegDeleteKeyW(hkey, L"");
79 RegCloseKey(hkey);
80
82 return 0;
83 }
84
86
87 if (value_all)
88 {
89 DWORD max_value_len = 256, value_len;
90 WCHAR *value_name;
91
92 value_name = malloc(max_value_len * sizeof(WCHAR));
93
94 while (1)
95 {
96 value_len = max_value_len;
97 rc = RegEnumValueW(hkey, 0, value_name, &value_len, NULL, NULL, NULL, NULL);
98 if (rc == ERROR_SUCCESS)
99 {
100 rc = RegDeleteValueW(hkey, value_name);
101 if (rc != ERROR_SUCCESS)
102 {
103 free(value_name);
104 RegCloseKey(hkey);
106 output_error(rc);
107 return 1;
108 }
109 }
110 else if (rc == ERROR_MORE_DATA)
111 {
112 max_value_len *= 2;
113 value_name = realloc(value_name, max_value_len * sizeof(WCHAR));
114 }
115 else break;
116 }
117 free(value_name);
118 }
119 else if (value_name || value_empty)
120 {
121 if ((rc = RegDeleteValueW(hkey, value_name)))
122 {
123 RegCloseKey(hkey);
124 output_error(rc);
125 return 1;
126 }
127 }
128
129 RegCloseKey(hkey);
131 return 0;
132}
133
134int reg_delete(int argc, WCHAR *argvW[])
135{
136 HKEY root;
137 WCHAR *path, *key_name, *value_name = NULL;
138 BOOL value_all = FALSE, value_empty = FALSE, force = FALSE;
139 REGSAM sam = 0;
140 int i;
141
142 if (!parse_registry_key(argvW[2], &root, &path))
143 return 1;
144
145 for (i = 3; i < argc; i++)
146 {
147 WCHAR *str;
148
149 if (argvW[i][0] != '/' && argvW[i][0] != '-')
150 goto invalid;
151
152 str = &argvW[i][1];
153
154 if (!lstrcmpiW(str, L"va"))
155 {
156 if (value_all) goto invalid;
157 value_all = TRUE;
158 continue;
159 }
160 else if (!lstrcmpiW(str, L"ve"))
161 {
162 if (value_empty) goto invalid;
163 value_empty = TRUE;
164 continue;
165 }
166 else if (!lstrcmpiW(str, L"reg:32"))
167 {
168 if (sam & KEY_WOW64_32KEY) goto invalid;
170 continue;
171 }
172 else if (!lstrcmpiW(str, L"reg:64"))
173 {
174 if (sam & KEY_WOW64_64KEY) goto invalid;
176 continue;
177 }
178 else if (!str[0] || str[1])
179 goto invalid;
180
181 switch (towlower(*str))
182 {
183 case 'v':
184 if (value_name || !(value_name = argvW[++i]))
185 goto invalid;
186 break;
187 case 'f':
188 if (force) goto invalid;
189 force = TRUE;
190 break;
191 default:
192 goto invalid;
193 }
194 }
195
196 if ((value_name && value_empty) || (value_name && value_all) || (value_empty && value_all))
197 goto invalid;
198
200 goto invalid;
201
203
204 return run_delete(root, path, sam, key_name, value_name, value_empty, value_all, force);
205
206invalid:
209 return 1;
210}
static int argc
Definition: ServiceArgs.c:12
static BOOL op_delete_key
Definition: delete.c:21
static int run_delete(HKEY root, WCHAR *path, REGSAM sam, WCHAR *key_name, WCHAR *value_name, BOOL value_empty, BOOL value_all, BOOL force)
Definition: delete.c:38
static void output_error(LONG rc)
Definition: delete.c:23
int reg_delete(int argc, WCHAR *argvW[])
Definition: delete.c:134
static REGSAM sam
Definition: query.c:143
WCHAR * get_long_key(HKEY root, WCHAR *path)
Definition: reg.c:208
BOOL ask_confirm(unsigned int msgid, WCHAR *reg_info)
Definition: reg.c:127
void WINAPIV output_message(unsigned int id,...)
Definition: reg.c:92
BOOL parse_registry_key(const WCHAR *key, HKEY *root, WCHAR **path)
Definition: reg.c:234
#define STRING_VALUEALL_FAILED
Definition: resource.h:74
#define STRING_SUCCESS
Definition: resource.h:36
#define STRING_DELETE_VALUE
Definition: resource.h:71
#define STRING_CANCELLED
Definition: resource.h:37
#define STRING_INVALID_SYNTAX
Definition: resource.h:33
#define STRING_FUNC_HELP
Definition: resource.h:34
#define STRING_VALUE_NONEXIST
Definition: resource.h:39
#define STRING_DELETE_VALUEALL
Definition: resource.h:72
#define STRING_KEY_NONEXIST
Definition: resource.h:38
#define STRING_DELETE_SUBKEY
Definition: resource.h:73
#define STRING_ACCESS_DENIED
Definition: resource.h:35
#define RegCloseKey(hKey)
Definition: registry.h:47
struct _root root
#define ERROR_MORE_DATA
Definition: dderror.h:13
#define realloc
Definition: debug_ros.c:6
#define free
Definition: debug_ros.c:5
#define malloc
Definition: debug_ros.c:4
#define ERROR_SUCCESS
Definition: deptool.c:10
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
LONG WINAPI RegOpenKeyExW(HKEY hKey, LPCWSTR lpSubKey, DWORD ulOptions, REGSAM samDesired, PHKEY phkResult)
Definition: reg.c:3356
LSTATUS WINAPI RegDeleteTreeW(HKEY hKey, LPCWSTR lpszSubKey)
Definition: reg.c:1746
LONG WINAPI RegDeleteKeyW(_In_ HKEY hKey, _In_ LPCWSTR lpSubKey)
Definition: reg.c:1237
LONG WINAPI RegDeleteValueW(HKEY hKey, LPCWSTR lpValueName)
Definition: reg.c:2355
LONG WINAPI RegEnumValueW(_In_ HKEY hKey, _In_ DWORD index, _Out_ LPWSTR value, _Inout_ PDWORD val_count, _Reserved_ PDWORD reserved, _Out_opt_ PDWORD type, _Out_opt_ LPBYTE data, _Inout_opt_ PDWORD count)
Definition: reg.c:2853
unsigned int BOOL
Definition: ntddk_ex.h:94
unsigned long DWORD
Definition: ntddk_ex.h:95
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
int WINAPI lstrcmpiW(LPCWSTR lpString1, LPCWSTR lpString2)
Definition: lstring.c:194
#define ERROR_FILE_NOT_FOUND
Definition: disk.h:79
static const WCHAR invalid[]
Definition: assoc.c:39
#define KEY_READ
Definition: nt_native.h:1023
#define KEY_SET_VALUE
Definition: nt_native.h:1017
#define L(x)
Definition: ntvdm.h:50
long LONG
Definition: pedump.c:60
const WCHAR * str
_CRTIMP wchar_t *__cdecl _wcsupr(_Inout_z_ wchar_t *_String)
#define towlower(c)
Definition: wctype.h:97
int ret
ACCESS_MASK REGSAM
Definition: winreg.h:69
#define KEY_WOW64_32KEY
Definition: cmtypes.h:45
#define KEY_WOW64_64KEY
Definition: cmtypes.h:46
__wchar_t WCHAR
Definition: xmlstorage.h:180