171 lines
4.9 KiB
C
171 lines
4.9 KiB
C
/*++
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Copyright (c) 1991-92 Microsoft Corporation
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Module Name:
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SessCopy.c
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Abstract:
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This file contains RxpCopyAndConvertSessions().
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Author:
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John Rogers (JohnRo) 17-Oct-1991
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Environment:
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Portable to any flat, 32-bit environment. (Uses Win32 typedefs.)
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Requires ANSI C extensions: slash-slash comments, long external names.
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Revision History:
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17-Oct-1991 JohnRo
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Created.
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21-Nov-1991 JohnRo
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Removed NT dependencies to reduce recompiles.
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07-Feb-1992 JohnRo
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Fixed the infamous NetSessionEnum bug (where 1-2 sessions OK, 3 or
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more results in first few being trashed).
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Call NetApiBufferAllocate() instead of private version.
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--*/
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// These must be included first:
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#include <windef.h> // IN, DWORD, etc.
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#include <lmcons.h> // NET_API_STATUS, etc.
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#include <lmshare.h> // Required by rxsess.h.
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#include <rap.h> // LPDESC. (Needed by strucinf.h.)
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// These may be included in any order:
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#include <lmapibuf.h> // NetApiBufferAllocate().
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#include <lmerr.h> // ERROR_ and NERR_ equates.
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#include <netdebug.h> // DBGSTATIC, NetpKdPrint(()), FORMAT_ equates.
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#include <netlib.h> // NetpPointerPlusSomeBytes, etc.
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#include <rxpdebug.h> // IF_DEBUG().
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#include <rxsess.h> // My prototype.
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#include <strucinf.h> // NetpSessionStructureInfo().
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NET_API_STATUS
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RxpCopyAndConvertSessions(
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IN LPSESSION_SUPERSET_INFO InStructureArray,
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IN DWORD InEntryCount,
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IN DWORD LevelWanted,
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IN LPTSTR ClientName OPTIONAL,
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IN LPTSTR UserName OPTIONAL,
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OUT LPVOID * OutStructureArrayPtr, // alloc'ed by this routine
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OUT LPDWORD OutEntryCountPtr OPTIONAL
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)
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{
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LPSESSION_SUPERSET_INFO InEntry = InStructureArray;
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DWORD InEntriesLeft;
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const DWORD InFixedSize = sizeof(SESSION_SUPERSET_INFO);
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LPVOID OutEntry; // Buffer to be returned to caller.
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DWORD OutEntryCount;
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LPBYTE OutFixedDataEnd;
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DWORD OutFixedSize;
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DWORD OutMaxSize;
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LPTSTR OutStringLocation;
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DWORD OutStringSize;
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LPVOID OutStructureArray;
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BOOL AnyMatchFound = FALSE; // not yet.
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NET_API_STATUS Status;
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NetpAssert( InEntryCount > 0 );
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NetpAssert( InStructureArray != NULL );
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*OutStructureArrayPtr = NULL;
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NetpSetOptionalArg(OutEntryCountPtr, 0);
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//
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// Learn about info level that caller wants.
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//
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Status = NetpSessionStructureInfo (
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LevelWanted, // level to learn about
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PARMNUM_ALL, // No parmnum with this.
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TRUE, // Need native sizes.
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NULL, // don't need data desc 16
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NULL, // don't need data desc 32
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NULL, // don't need data desc SMB
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& OutMaxSize, // max buffer size (native)
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& OutFixedSize, // fixed size.
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& OutStringSize // string size.
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);
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if (Status != NERR_Success) {
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return (Status);
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}
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//
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// Allocate memory for 32-bit version of caller's info level.
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//
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Status = NetApiBufferAllocate(
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InEntryCount * OutMaxSize,
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& OutStructureArray);
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if (Status != NERR_Success) {
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return (Status);
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}
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OutEntry = OutStructureArray;
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IF_DEBUG(SESSION) {
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NetpKdPrint(( "RxpCopyAndConvertSessions: allocated output buffer at "
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FORMAT_LPVOID "\n", (LPVOID) OutStructureArray ));
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}
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OutEntryCount = 0;
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OutStringLocation = (LPTSTR) NetpPointerPlusSomeBytes(
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OutStructureArray, InEntryCount * OutMaxSize);
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for (InEntriesLeft=InEntryCount; InEntriesLeft > 0; --InEntriesLeft) {
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OutFixedDataEnd = NetpPointerPlusSomeBytes(
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OutEntry, OutFixedSize);
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if (RxpSessionMatches(
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(LPSESSION_SUPERSET_INFO) InEntry, // candidate structure
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ClientName,
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UserName)) {
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// Match!
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AnyMatchFound = TRUE;
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++OutEntryCount;
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RxpConvertSessionInfo (
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InEntry,
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LevelWanted,
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OutEntry,
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OutFixedDataEnd,
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& OutStringLocation); // string area top (updated)
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OutEntry = (LPVOID) NetpPointerPlusSomeBytes(OutEntry,OutFixedSize);
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}
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InEntry = (LPVOID) NetpPointerPlusSomeBytes(InEntry, InFixedSize);
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}
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if (AnyMatchFound == FALSE) {
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(void) NetApiBufferFree( OutStructureArray );
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OutStructureArray = NULL;
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Status = RxpSessionMissingErrorCode( ClientName, UserName);
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} else {
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Status = NERR_Success;
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}
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//
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// Tell caller how things went.
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//
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*OutStructureArrayPtr = OutStructureArray;
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NetpSetOptionalArg(OutEntryCountPtr, OutEntryCount);
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return (Status);
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}
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