/*++ Copyright (c) 1992-1993 Microsoft Corporation Module Name: ConfMax.c Abstract: This module contains NetpGetConfigMaxSizes() and NetpGetWinRegConfigMaxSizes(). Author: John Rogers (JohnRo) 13-Feb-1992 Revision History: 13-Feb-1992 JohnRo Created. 06-Mar-1992 JohnRo Avoid compiler warnings in RTL and fake versions. 20-Mar-1992 JohnRo Update to DaveGi's proposed WinReg API changes. 07-May-1992 JohnRo Enable win32 registry for NET tree. 08-May-1992 JohnRo Use equates. 09-May-1992 JohnRo Avoid assert when number of keys is zero. 05-Jun-1992 JohnRo Winreg title index parm is defunct. Handle RegQueryInfoKey bad return codes better. 13-Jun-1992 JohnRo Net config helpers should allow empty section. 08-Dec-1992 JohnRo RAID 4304: ReqQueryInfoKeyW returns sizes twice as big as actual. 19-Apr-1993 JohnRo RAID 5483: server manager: wrong path given in repl dialog. --*/ // These must be included first: #include // NT definitions #include // NT Rtl structures #include // NT Rtl structures #include // Needed by and #include // LAN Manager common definitions // These may be included in any order: #include // NET_CONFIG_HANDLE, BOGUS_CONFIG_SIZE. #include // IF_DEBUG() #include // NetpKdPrint(()), etc. #include // NetpSetOptionalArg(). #include // PREFIX_ equates. #include // NO_ERROR. #if defined(USE_WIN32_CONFIG) NET_API_STATUS NetpGetWinRegConfigMaxSizes ( IN HKEY WinRegHandle, OUT LPDWORD MaxKeywordSize OPTIONAL, OUT LPDWORD MaxValueSize OPTIONAL ) { LONG Error; TCHAR ClassName[ MAX_CLASS_NAME_LENGTH ]; DWORD ClassNameLength; DWORD NumberOfSubKeys; DWORD MaxSubKeyLength; DWORD MaxClassLength; DWORD NumberOfValues; DWORD MaxValueNameLength; DWORD MaxValueDataLength; DWORD SecurityDescriptorSize; FILETIME LastWriteTime; ClassNameLength = MAX_CLASS_NAME_LENGTH; Error = RegQueryInfoKey( WinRegHandle, ClassName, &ClassNameLength, NULL, // reserved &NumberOfSubKeys, &MaxSubKeyLength, &MaxClassLength, &NumberOfValues, &MaxValueNameLength, &MaxValueDataLength, #ifndef REG_FILETIME &SecurityDescriptorSize, #endif &LastWriteTime ); IF_DEBUG(CONFIG) { NetpKdPrint(( PREFIX_NETLIB "NetpGetWinRegConfigMaxSizes: RegQueryInfoKey returned " FORMAT_LONG ", key size " FORMAT_DWORD ", data size " FORMAT_DWORD ".\n", Error, MaxValueNameLength, MaxValueDataLength )); } if (Error != ERROR_SUCCESS) { NetpKdPrint(( PREFIX_NETLIB "NetpGetWinRegConfigMaxSizes: bad status " FORMAT_LONG " from RegQueryInfoKey, handle was " FORMAT_HEX_DWORD ".\n", Error, (DWORD) WinRegHandle )); NetpAssert( FALSE ); return ( (NET_API_STATUS) Error ); } #define CORRECT( value ) \ { \ if ((value) == BOGUS_CONFIG_SIZE) { \ value = BETTER_CONFIG_SIZE; \ } \ /* Convert from chars (w/o null) to byte (w/ null). */ \ value = ( ((value)+1) * sizeof(TCHAR) ); \ } if (NumberOfValues > 0) { NetpAssert( MaxValueDataLength > 0 ); NetpAssert( MaxValueNameLength > 0 ); } else { // Handle empty section correctly too. NetpAssert( MaxValueDataLength == 0 ); NetpAssert( MaxValueNameLength == 0 ); } CORRECT( MaxValueNameLength ); // BUGBUG: Expands unnecesarily, as value is already in bytes! // How much memory gets wasted? CORRECT( MaxValueDataLength ); NetpSetOptionalArg( MaxKeywordSize, MaxValueNameLength ); NetpSetOptionalArg( MaxValueSize, MaxValueDataLength ); return (NO_ERROR); } // NetpGetWinRegConfigMaxSizes #endif NET_API_STATUS NetpGetConfigMaxSizes ( IN NET_CONFIG_HANDLE * ConfigHandle, OUT LPDWORD MaxKeywordSize OPTIONAL, OUT LPDWORD MaxValueSize OPTIONAL ) /*++ Routine Description: BUGBUG Arguments: BUGBUG Return Value: NET_API_STATUS - NO_ERROR or reason for failure. --*/ { NET_CONFIG_HANDLE * lpnetHandle = ConfigHandle; // conv from opaque type NET_API_STATUS ApiStatus; // // Check for simple caller's errors. // if (ConfigHandle == NULL) { return (ERROR_INVALID_PARAMETER); } // // Check for other invalid pointers, and make error handling code simpler. // if (MaxKeywordSize != NULL) { *MaxKeywordSize = 0; } if (MaxValueSize != NULL) { *MaxValueSize = 0; } #if defined(USE_WIN32_CONFIG) ApiStatus = NetpGetWinRegConfigMaxSizes( lpnetHandle->WinRegKey, MaxKeywordSize, MaxValueSize ); #elif defined(FAKE_PER_PROCESS_RW_CONFIG) UNREFERENCED_PARAMETER( MaxKeywordSize ); UNREFERENCED_PARAMETER( MaxValueSize ); ApiStatus = ERROR_NOT_SUPPORTED; #else // NT RTL read-only temporary stuff UNREFERENCED_PARAMETER( MaxKeywordSize ); UNREFERENCED_PARAMETER( MaxValueSize ); ApiStatus = ERROR_NOT_SUPPORTED; #endif // def FAKE_PER_PROCESS_RW_CONFIG return (ApiStatus); } // NetpGetConfigMaxSizes