ReactOS  0.4.13-dev-39-g8b6696f
ShellCommandDeleteValue.cpp
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1 /*
2  * regexpl - Console Registry Explorer
3  *
4  * Copyright (C) 2000-2005 Nedko Arnaudov <nedko@users.sourceforge.net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; see the file COPYING. If not, write to
18  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19  * Boston, MA 02111-1307, USA.
20  */
21 
22 // ShellCommandDeleteValue.cpp: implementation of the CShellCommandDeleteValue class.
23 //
25 
26 #include "ph.h"
28 #include "RegistryExplorer.h"
29 #include "Pattern.h"
30 
31 #define DV_CMD _T("DV")
32 #define DV_CMD_LENGTH COMMAND_LENGTH(DV_CMD)
33 #define DV_CMD_SHORT_DESC DV_CMD _T(" command is used to delete value.\n")
34 
36 // Construction/Destruction
38 
40 {
41 }
42 
44 {
45 }
46 
48 {
49  return _tcsicmp(pszCommand,DV_CMD) == 0;
50 }
51 
53 {
54  rArguments.ResetArgumentIteration();
55  TCHAR *pszCommandItself = rArguments.GetNextArgument();
56 
57  TCHAR *pszParameter;
58  TCHAR *pszValueFull = NULL;
59  BOOL blnHelp = FALSE;
60 
61  if ((_tcsnicmp(pszCommandItself,DV_CMD _T(".."),DV_CMD_LENGTH+2*sizeof(TCHAR)) == 0)||
62  (_tcsnicmp(pszCommandItself,DV_CMD _T("\\"),DV_CMD_LENGTH+1*sizeof(TCHAR)) == 0))
63  {
64  pszValueFull = pszCommandItself + DV_CMD_LENGTH;
65  }
66  else if (_tcsnicmp(pszCommandItself,DV_CMD _T("/"),DV_CMD_LENGTH+1*sizeof(TCHAR)) == 0)
67  {
68  pszParameter = pszCommandItself + DV_CMD_LENGTH;
69  goto CheckValueArgument;
70  }
71 
72  while((pszParameter = rArguments.GetNextArgument()) != NULL)
73  {
74 CheckValueArgument:
75  if ((_tcsicmp(pszParameter,_T("/?")) == 0)
76  ||(_tcsicmp(pszParameter,_T("-?")) == 0))
77  {
78  blnHelp = TRUE;
79  break;
80  }
81  else if (!pszValueFull)
82  {
83  pszValueFull = pszParameter;
84  }
85  else
86  {
87  rConsole.Write(_T("Bad parameter: "));
88  rConsole.Write(pszParameter);
89  rConsole.Write(_T("\n"));
90  }
91  }
92 
94  TCHAR *pszValueNamePattern;
95  const TCHAR *pszEmpty = _T("");
96  const TCHAR *pszPath;
97 
98  if (blnHelp)
99  {
100  rConsole.Write(GetHelpString());
101  return 0;
102  }
103 
104  if (pszValueFull)
105  {
106  if (_tcscmp(pszValueFull,_T("\\")) == 0)
107  goto CommandNAonRoot;
108 
109  TCHAR *pchSep = _tcsrchr(pszValueFull,_T('\\'));
110  pszValueNamePattern = pchSep?(pchSep+1):(pszValueFull);
111  pszPath = pchSep?pszValueFull:_T(".");
112 
113  if (pchSep)
114  *pchSep = 0;
115  }
116  else
117  {
118  pszValueNamePattern = (TCHAR*)pszEmpty;
119  pszPath = _T(".");
120  }
121 
122  {
123  size_t s = _tcslen(pszValueNamePattern);
124  if (s && (pszValueNamePattern[0] == _T('\"'))&&(pszValueNamePattern[s-1] == _T('\"')))
125  {
126  pszValueNamePattern[s-1] = 0;
127  pszValueNamePattern++;
128  }
129  }
130 
132  {
134  return 0;
135  }
136 
137  if (!Key.IsRoot())
138  { // not root key ???
139  TCHAR Buffer[254];
140  DWORD dwMaxValueNameLength;
141  LONG nError = Key.GetMaxValueNameLength(dwMaxValueNameLength);
142  if (nError != ERROR_SUCCESS)
143  {
144  _stprintf(Buffer,_T("Cannot query info about %s key. Error is %u\n"),Key.GetKeyName(),(unsigned int)nError);
145  rConsole.Write(Buffer);
146  return 0;
147  }
148 
149  TCHAR *pszValueName = new (std::nothrow) TCHAR[dwMaxValueNameLength];
150  if (!pszValueName)
151  {
152  rConsole.Write("Out of memory.");
153  return 0;
154  }
155 
156  Key.InitValueEnumeration(pszValueName,dwMaxValueNameLength,NULL,0,NULL);
157 
158  while ((nError = Key.GetNextValue()) == ERROR_SUCCESS)
159  {
160  if (PatternMatch(pszValueNamePattern,pszValueName))
161  {
162  nError = Key.DeleteValue(pszValueName);
163  if (nError != ERROR_SUCCESS)
164  {
165  _stprintf(Buffer,_T("Cannot delete value. Error is %u\n"),(unsigned int)nError);
166  rConsole.Write(Buffer);
167  }
168  else
169  {
171  }
172  Key.InitValueEnumeration(pszValueName,dwMaxValueNameLength,NULL,0,NULL); // reset iteration
173  }
174  }
175  } // if (pKey)
176  else
177  {
178 CommandNAonRoot:
179  rConsole.Write(DV_CMD COMMAND_NA_ON_ROOT);
180  }
181 
182  return 0;
183 }
184 
186 {
187  return DV_CMD_SHORT_DESC
188  _T("Syntax: ") DV_CMD _T(" [<PATH>][<VALUE_NAME>] [/?]\n\n")
189  _T(" <PATH> - Optional relative path of key which value will be delete.\n")
190  _T(" <VALUE_NAME> - Name pattern of key's value. Default is key's default value.\n")
191  _T(" /? - This help.\n\n");
192 }
193 
195 {
196  return DV_CMD_SHORT_DESC;
197 }
virtual const TCHAR * GetHelpString()
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Definition: tcscmp.h:8
CShellCommandDeleteValue(CRegistryTree &rTree)
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Definition: pedump.c:60
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Definition: Pattern.cpp:28
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Definition: gl.h:2039
#define DV_CMD_SHORT_DESC
#define DV_CMD
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Definition: tcsrchr.h:4
#define DV_CMD_LENGTH
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