ReactOS 0.4.15-dev-7934-g1dc8d80
ShellCommandSetValue.cpp File Reference
#include "ph.h"
#include "ShellCommandSetValue.h"
#include "RegistryExplorer.h"
#include "RegistryTree.h"
#include "RegistryKey.h"
Include dependency graph for ShellCommandSetValue.cpp:

Go to the source code of this file.

Macros

#define SET_VALUE_CMD   _T("SV")
 
#define SET_VALUE_CMD_LENGTH   COMMAND_LENGTH(SET_VALUE_CMD)
 
#define SET_VALUE_CMD_SHORT_DESC   SET_VALUE_CMD _T(" command is used to set value.\n")
 

Functions

BOOL StringToDWORD (DWORD &rdwOut, const TCHAR *pszIn)
 

Macro Definition Documentation

◆ SET_VALUE_CMD

#define SET_VALUE_CMD   _T("SV")

Definition at line 32 of file ShellCommandSetValue.cpp.

◆ SET_VALUE_CMD_LENGTH

#define SET_VALUE_CMD_LENGTH   COMMAND_LENGTH(SET_VALUE_CMD)

Definition at line 33 of file ShellCommandSetValue.cpp.

◆ SET_VALUE_CMD_SHORT_DESC

#define SET_VALUE_CMD_SHORT_DESC   SET_VALUE_CMD _T(" command is used to set value.\n")

Definition at line 34 of file ShellCommandSetValue.cpp.

Function Documentation

◆ StringToDWORD()

BOOL StringToDWORD ( DWORD rdwOut,
const TCHAR pszIn 
)

Definition at line 36 of file ShellCommandSetValue.cpp.

37{
38 const TCHAR *pszDigits;
39 const TCHAR *pszOctalNumbers = _T("01234567");
40 const TCHAR *pszDecimalNumbers = _T("0123456789");
41 const TCHAR *pszHexNumbers = _T("0123456789ABCDEF");
42 const TCHAR *pszNumbers;
43 unsigned int nBase = 0;
44 if (*pszIn == _T('0'))
45 {
46 if ((*(pszIn+1) == _T('x'))||((*(pszIn+1) == _T('X'))))
47 { // hex
48 nBase = 16;
49 pszDigits = pszIn+2;
50 pszNumbers = pszHexNumbers;
51 }
52 else
53 { // octal
54 nBase = 8;
55 pszDigits = pszIn+1;
56 pszNumbers = pszOctalNumbers;
57 }
58 }
59 else
60 { //decimal
61 nBase = 10;
62 pszDigits = pszIn;
63 pszNumbers = pszDecimalNumbers;
64 }
65
66 const TCHAR *pszDigit = pszDigits;
67 pszDigit += _tcslen(pszDigit);
68
69 DWORD nMul = 1;
70 rdwOut = 0;
71 DWORD dwAdd;
72 const TCHAR *pszNumber;
73 while (pszDigit > pszDigits)
74 {
75 pszDigit--;
76 pszNumber = _tcschr(pszNumbers,*pszDigit);
77 if (!pszNumber)
78 return FALSE; // wrong char in input string
79
80 dwAdd = (pszNumber-pszNumbers)*nMul;
81
82 if (rdwOut + dwAdd < rdwOut)
83 return FALSE; // overflow
84 rdwOut += dwAdd;
85
86 if (nMul * nBase < nMul)
87 return FALSE; // overflow
88 nMul *= nBase;
89 };
90
91 return TRUE;
92}
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
unsigned long DWORD
Definition: ntddk_ex.h:95
#define _tcschr
Definition: tchar.h:1406
#define _T(x)
Definition: vfdio.h:22
char TCHAR
Definition: xmlstorage.h:189
#define _tcslen
Definition: xmlstorage.h:198

Referenced by CShellCommandSetValue::Execute().