Leaked source code of windows server 2003
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//++
//
// Copyright (C) Microsoft Corporation, 1987 - 1999
//
// Module Name:
//
// regutil.c
//
// Abstract:
//
// Queries into network drivers
//
// Author:
//
// Anilth - 4-20-1998
//
// Environment:
//
// User mode only.
// Contains NT-specific code.
//
// Revision History:
//
//--
#include "precomp.h"
#include "ipcfg.h"
//Registry Reading functions, should be able to be replaced by HrReg... standard routines
BOOL ReadRegistryString(HKEY Key, LPCTSTR ParameterName, LPTSTR String, LPDWORD Length)
{
LONG err;
DWORD valueType;
*String = '\0';
err = RegQueryValueEx(Key,
ParameterName,
NULL, // reserved
&valueType,
(LPBYTE)String,
Length
);
if (err == ERROR_SUCCESS) {
ASSERT(valueType == REG_SZ || valueType == REG_MULTI_SZ);
DEBUG_PRINT(("ReadRegistryString(%s): val = \"%s\", type = %d, len = %d\n",
ParameterName,
String,
valueType,
*Length
));
} else {
DEBUG_PRINT(("ReadRegistryString(%s): err = %d\n", ParameterName, err));
}
return ((err == ERROR_SUCCESS) && (*Length > sizeof('\0')));
}
BOOL ReadRegistryIpAddrString(HKEY Key, LPCTSTR ParameterName, PIP_ADDR_STRING IpAddr)
{
LONG err;
DWORD valueLength = 0;
DWORD valueType;
LPBYTE valueBuffer;
UINT stringCount;
LPTSTR stringPointer;
LPTSTR stringAddress[MAX_STRING_LIST_LENGTH + 1];
UINT i;
err = RegQueryValueEx(Key,
ParameterName,
NULL, // reserved
&valueType,
NULL,
&valueLength
);
if ((err == ERROR_SUCCESS))
{
if((valueLength > 1) && (valueType == REG_SZ)
|| (valueLength > 2) && (valueType == REG_MULTI_SZ) )
{
valueBuffer = Malloc(valueLength);
if( NULL == valueBuffer)
{
DebugMessage("Out of Memory!");
err = ERROR_NOT_ENOUGH_MEMORY;
goto Error;
}
err = RegQueryValueEx(Key,
ParameterName,
NULL, // reserved
&valueType,
valueBuffer,
&valueLength
);
if ((err == ERROR_SUCCESS) && (valueLength > 1))
{
stringPointer = valueBuffer;
DEBUG_PRINT(("ReadRegistryIpAddrString(%s): \"%s\", len = %d\n",
ParameterName,
valueBuffer,
valueLength
));
if( REG_SZ == valueType )
{
stringPointer += strspn(stringPointer, STRING_ARRAY_DELIMITERS);
stringAddress[0] = stringPointer;
stringCount = 1;
while (stringPointer = strpbrk(stringPointer, STRING_ARRAY_DELIMITERS))
{
*stringPointer++ = '\0';
stringPointer += strspn(stringPointer, STRING_ARRAY_DELIMITERS);
stringAddress[stringCount] = stringPointer;
if (*stringPointer)
{
++stringCount;
}
}
for (i = 0; i < stringCount; ++i)
{
AddIpAddressString(IpAddr, stringAddress[i], "");
}
}
else if( REG_MULTI_SZ == valueType )
{
stringCount = 0;
while(strlen(stringPointer))
{
AddIpAddressString(IpAddr, stringPointer, "");
stringPointer += 1+strlen(stringPointer);
stringCount ++;
}
if( 0 == stringCount )
err = ERROR_PATH_NOT_FOUND;
}
else
{
err = ERROR_PATH_NOT_FOUND;
}
}
else
{
DEBUG_PRINT(("ReadRegistryIpAddrString(%s): err = %d, len = %d\n",
ParameterName,
err,
valueLength
));
err = ERROR_PATH_NOT_FOUND;
}
Free(valueBuffer);
}
else
{
DEBUG_PRINT(("ReadRegistryIpAddrString(%s): err = %d, type = %d, len = %d\n",
ParameterName,
err,
valueType,
valueLength
));
err = ERROR_PATH_NOT_FOUND;
}
}
Error:
return (err == ERROR_SUCCESS);
}
BOOL ReadRegistryOemString(HKEY Key, LPWSTR ParameterName, LPTSTR String, LPDWORD Length)
{
LONG err;
DWORD valueType;
DWORD valueLength = 0;
//
// first, get the length of the string
//
*String = '\0';
err = RegQueryValueExW(Key,
ParameterName,
NULL, // reserved
&valueType,
NULL,
&valueLength
);
if ((err == ERROR_SUCCESS) && (valueType == REG_SZ))
{
if ((valueLength <= *Length) && (valueLength > sizeof(L'\0')))
{
UNICODE_STRING unicodeString;
OEM_STRING oemString;
LPWSTR str = (LPWSTR)Malloc(valueLength);
if(NULL == str)
{
assert(FALSE);
DebugMessage("Out of memory!\n");
err = ERROR_NOT_ENOUGH_MEMORY;
goto Error;
}
//
// read the UNICODE string into allocated memory
//
err = RegQueryValueExW(Key,
ParameterName,
NULL,
&valueType,
(LPBYTE)str,
&valueLength
);
if (err == ERROR_SUCCESS) {
//
// convert the UNICODE string to OEM character set
//
RtlInitUnicodeString(&unicodeString, str);
if ( RtlUnicodeStringToOemString(&oemString, &unicodeString, TRUE) == STATUS_SUCCESS)
{
if (oemString.Buffer != NULL)
{
strcpy(String, oemString.Buffer);
DEBUG_PRINT(("ReadRegistryOemString(%ws): val = \"%s\", len = %d\n",
ParameterName,
String,
valueLength
));
}
RtlFreeOemString(&oemString);
}
} else {
DEBUG_PRINT(("ReadRegistryOemString(%ws): err = %d, type = %d, len = %d\n",
ParameterName,
err,
valueType,
valueLength
));
}
Free(str);
}
else
{
DEBUG_PRINT(("ReadRegistryOemString(%ws): err = %d, type = %d, len = %d\n",
ParameterName,
err,
valueType,
valueLength
));
err = !ERROR_SUCCESS;
}
} else {
DEBUG_PRINT(("ReadRegistryOemString(%ws): err = %d, type = %d, len = %d\n",
ParameterName,
err,
valueType,
valueLength
));
err = !ERROR_SUCCESS;
}
Error:
return (err == ERROR_SUCCESS);
}
BOOL ReadRegistryDword(HKEY Key, LPCTSTR ParameterName, LPDWORD Value)
{
LONG err;
DWORD valueLength;
DWORD valueType;
valueLength = sizeof(*Value);
err = RegQueryValueEx(Key,
ParameterName,
NULL, // reserved
&valueType,
(LPBYTE)Value,
&valueLength
);
if ((err == ERROR_SUCCESS) && (valueType == REG_DWORD) && (valueLength == sizeof(DWORD)))
{
DEBUG_PRINT(("ReadRegistryDword(%s): val = %d, type = %d, len = %d\n",
ParameterName,
*Value,
valueType,
valueLength
));
} else {
DEBUG_PRINT(("ReadRegistryDword(%d,%s): err = %d\n",
Key, ParameterName, err));
err = !ERROR_SUCCESS;
}
return (err == ERROR_SUCCESS);
}
BOOL
OpenAdapterKey(
const LPTSTR AdapterName,
PHKEY Key
)
{
LONG err;
CHAR keyName[MAX_ADAPTER_NAME_LENGTH + sizeof(TCPIP_PARAMS_INTER_KEY)];
HKEY ServicesKey;
if (NULL == AdapterName) {
DEBUG_PRINT("No Adapter Name");
return FALSE;
}
//
// open the handle to this adapter's TCPIP parameter key
//
strcpy(keyName, TCPIP_PARAMS_INTER_KEY );
strcat(keyName, AdapterName);
err = RegOpenKey(HKEY_LOCAL_MACHINE,SERVICES_KEY,&ServicesKey);
if (err != ERROR_SUCCESS) {
DEBUG_PRINT("Opening Services key failed!\n");
return FALSE;
}
err = RegOpenKey(ServicesKey, keyName, Key );
if( err != ERROR_SUCCESS ){
DEBUG_PRINT(("OpenAdapterKey: RegOpenKey ServicesKey %s, err=%d\n",
keyName, GetLastError() ));
}else{
TRACE_PRINT(("Exit OpenAdapterKey: %s ok\n", keyName ));
}
return (err == ERROR_SUCCESS);
}