windows-nt/Source/XPSP1/NT/ds/netapi/rpcxlate/rxapi/errread.c
2020-09-26 16:20:57 +08:00

153 lines
4.2 KiB
C

/*++
Copyright (c) 1991-1992 Microsoft Corporation
Module Name:
ErrRead.c
Abstract:
This file contains the RpcXlate code to handle the NetErrorLogRead API.
Author:
John Rogers (JohnRo) 12-Nov-1991
Environment:
Portable to any flat, 32-bit environment. (Uses Win32 typedefs.)
Requires ANSI C extensions: slash-slash comments, long external names.
Notes:
The logic in this routine is based on the logic in AudRead.c.
Make sure that you check both files if you find a bug in either.
Revision History:
12-Nov-1991 JohnRo
Created.
20-Nov-1991 JohnRo
Handle empty log file.
Added some assertion checks.
10-Sep-1992 JohnRo
RAID 5174: event viewer _access violates after NetErrorRead.
04-Nov-1992 JohnRo
RAID 9355: Event viewer: won't focus on LM UNIX machine.
--*/
// These must be included first:
#include <windef.h> // IN, DWORD, etc.
#include <lmcons.h> // NET_API_STATUS, etc.
#include <lmerrlog.h> // Needed by rxerrlog.h
// These may be included in any order:
#include <apinums.h> // API_ equates.
#include <lmapibuf.h> // NetApiBufferFree().
#include <netdebug.h> // NetpKdPrint(()), FORMAT_ equates.
#include <remdef.h> // REM16_, REM32_, REMSmb_ equates.
#include <rx.h> // RxRemoteApi().
#include <rxerrlog.h> // My prototype, RxpConvertErrorLogArray().
#include <winerror.h> // NO_ERROR.
NET_API_STATUS
RxNetErrorLogRead (
IN LPTSTR UncServerName,
IN LPTSTR Reserved1 OPTIONAL,
IN LPHLOG ErrorLogHandle,
IN DWORD Offset,
IN LPDWORD Reserved2 OPTIONAL,
IN DWORD Reserved3,
IN DWORD OffsetFlag,
OUT LPBYTE * BufPtr,
IN DWORD PrefMaxSize,
OUT LPDWORD BytesRead,
OUT LPDWORD TotalBytes
)
{
const DWORD BufSize = 65535;
NET_API_STATUS Status;
LPBYTE UnconvertedBuffer;
DWORD UnconvertedSize;
UNREFERENCED_PARAMETER(PrefMaxSize);
NetpAssert(UncServerName != NULL);
NetpAssert(*UncServerName != '\0');
*BufPtr = NULL; // set in case of error, and GP fault if necessary.
Status = RxRemoteApi(
API_WErrorLogRead, // API number
UncServerName,
REMSmb_NetErrorLogRead_P, // parm desc
REM16_ErrorLogReturnBuf, // data desc 16
REM16_ErrorLogReturnBuf, // data desc 32 (same as 16)
REMSmb_ErrorLogReturnBuf, // data desc SMB
NULL, // no aux desc 16
NULL, // no aux desc 32
NULL, // no aux desc SMB
ALLOCATE_RESPONSE, // flags: not a null session API
// rest of API's arguments, in 32-bit LM2.x format:
Reserved1,
ErrorLogHandle, // log handle (input)
ErrorLogHandle, // log handle (output)
Offset,
Reserved2,
Reserved3,
OffsetFlag,
& UnconvertedBuffer, // buffer (alloc for us)
BufSize,
& UnconvertedSize,
TotalBytes); // total available (approximate)
if (Status != NO_ERROR) {
return (Status);
}
if (UnconvertedSize > 0) {
NetpAssert( UnconvertedBuffer != NULL );
Status = RxpConvertErrorLogArray(
UnconvertedBuffer, // input array
UnconvertedSize, // input byte count
BufPtr, // will be alloc'ed
BytesRead); // output byte count
(void) NetApiBufferFree( UnconvertedBuffer );
if (Status != NO_ERROR) {
*BufPtr = NULL;
*BytesRead = 0;
*TotalBytes = 0;
return (Status);
}
} else {
*BytesRead = 0;
*TotalBytes = 0;
NetpAssert( *BufPtr == NULL );
if (UnconvertedBuffer != NULL) {
(void) NetApiBufferFree( UnconvertedBuffer );
}
}
if ( *BytesRead == 0) {
NetpAssert( *BufPtr == NULL );
} else {
NetpAssert( *BufPtr != NULL );
}
return (Status);
} // RxNetErrorLogRead