328 lines
7.8 KiB
C
328 lines
7.8 KiB
C
/*++
|
|
|
|
Copyright (c) 1992-1996 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
user_lm.c
|
|
|
|
Abstract:
|
|
|
|
This file contains the routines which actually call Lan Manager and
|
|
retrieve the contents of the user table, including cacheing.
|
|
|
|
Environment:
|
|
|
|
User Mode - Win32
|
|
|
|
Revision History:
|
|
|
|
10-May-1996 DonRyan
|
|
Removed banner from Technology Dynamics, Inc.
|
|
|
|
--*/
|
|
|
|
//--------------------------- WINDOWS DEPENDENCIES --------------------------
|
|
|
|
//--------------------------- STANDARD DEPENDENCIES -- #include<xxxxx.h> ----
|
|
|
|
#ifdef WIN32
|
|
#include <windows.h>
|
|
#include <lm.h>
|
|
#endif
|
|
|
|
#include <string.h>
|
|
#include <search.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
|
|
//--------------------------- MODULE DEPENDENCIES -- #include"xxxxx.h" ------
|
|
|
|
|
|
#include "mib.h"
|
|
#include "mibfuncs.h"
|
|
#include "user_tbl.h"
|
|
#include "lmcache.h"
|
|
|
|
|
|
//--------------------------- SELF-DEPENDENCY -- ONE #include"module.h" -----
|
|
|
|
//--------------------------- PUBLIC VARIABLES --(same as in module.h file)--
|
|
|
|
//--------------------------- PRIVATE CONSTANTS -----------------------------
|
|
|
|
#define SafeBufferFree(x) if(NULL != x) NetApiBufferFree( x )
|
|
#define SafeFree(x) if(NULL != x) SnmpUtilMemFree( x )
|
|
|
|
//--------------------------- PRIVATE STRUCTS -------------------------------
|
|
|
|
//--------------------------- PRIVATE VARIABLES -----------------------------
|
|
|
|
//--------------------------- PRIVATE PROTOTYPES ----------------------------
|
|
|
|
//--------------------------- PRIVATE PROCEDURES ----------------------------
|
|
|
|
|
|
int __cdecl user_entry_cmp(
|
|
IN const USER_ENTRY *A,
|
|
IN const USER_ENTRY *B
|
|
) ;
|
|
|
|
void build_user_entry_oids( );
|
|
|
|
//--------------------------- PUBLIC PROCEDURES -----------------------------
|
|
|
|
|
|
//
|
|
// MIB_user_lmget
|
|
// Retrieve print queue table information from Lan Manager.
|
|
// If not cached, sort it and then
|
|
// cache it.
|
|
//
|
|
// Notes:
|
|
//
|
|
// Return Codes:
|
|
// SNMPAPI_NOERROR
|
|
// SNMPAPI_ERROR
|
|
//
|
|
// Error Codes:
|
|
// None.
|
|
//
|
|
SNMPAPI MIB_users_lmget(
|
|
)
|
|
|
|
{
|
|
|
|
DWORD entriesread;
|
|
DWORD totalentries;
|
|
LPBYTE bufptr;
|
|
unsigned lmCode;
|
|
unsigned i;
|
|
USER_INFO_0 *DataTable;
|
|
USER_ENTRY *MIB_UserTableElement ;
|
|
int First_of_this_block;
|
|
LPSTR ansi_string;
|
|
time_t curr_time ;
|
|
SNMPAPI nResult = SNMPAPI_NOERROR;
|
|
DWORD resumehandle=0;
|
|
|
|
|
|
time(&curr_time); // get the time
|
|
|
|
|
|
//
|
|
//
|
|
// If cached, return piece of info.
|
|
//
|
|
//
|
|
|
|
|
|
if((NULL != cache_table[C_USER_TABLE].bufptr) &&
|
|
(curr_time <
|
|
(cache_table[C_USER_TABLE].acquisition_time
|
|
+ cache_expire[C_USER_TABLE] ) ) )
|
|
{ // it has NOT expired!
|
|
|
|
goto Exit ; // the global table is valid
|
|
|
|
}
|
|
|
|
//
|
|
//
|
|
// Do network call to gather information and put it in a nice array
|
|
//
|
|
//
|
|
|
|
//
|
|
// remember to free the existing data
|
|
//
|
|
|
|
MIB_UserTableElement = MIB_UserTable.Table ;
|
|
|
|
// iterate over the whole table
|
|
for(i=0; i<MIB_UserTable.Len ;i++)
|
|
{
|
|
// free any alloc'ed elements of the structure
|
|
SnmpUtilOidFree(&(MIB_UserTableElement->Oid));
|
|
SafeFree(MIB_UserTableElement->svUserName.stream);
|
|
|
|
MIB_UserTableElement ++ ; // increment table entry
|
|
}
|
|
SafeFree(MIB_UserTable.Table) ; // free the base Table
|
|
MIB_UserTable.Table = NULL ; // just for safety
|
|
MIB_UserTable.Len = 0 ; // just for safety
|
|
|
|
|
|
|
|
#if 0 // done above
|
|
// init the length
|
|
MIB_UserTable.Len = 0;
|
|
#endif
|
|
First_of_this_block = 0;
|
|
|
|
do { // as long as there is more data to process
|
|
|
|
|
|
lmCode =
|
|
NetUserEnum( NULL, // local server
|
|
0, // level 0, no admin priv.
|
|
FILTER_NORMAL_ACCOUNT,
|
|
&bufptr, // data structure to return
|
|
MAX_PREFERRED_LENGTH,
|
|
&entriesread,
|
|
&totalentries,
|
|
&resumehandle // resume handle
|
|
);
|
|
|
|
|
|
DataTable = (USER_INFO_0 *) bufptr ;
|
|
|
|
if((NERR_Success == lmCode) || (ERROR_MORE_DATA == lmCode))
|
|
{ // valid so process it, otherwise error
|
|
|
|
if(0 == MIB_UserTable.Len) { // 1st time, alloc the whole table
|
|
// alloc the table space
|
|
MIB_UserTable.Table = SnmpUtilMemAlloc(totalentries *
|
|
sizeof(USER_ENTRY) );
|
|
// prefix bugs 445183 and 445184
|
|
if (MIB_UserTable.Table == NULL) {
|
|
// free all of the lan man data
|
|
SafeBufferFree( bufptr ) ;
|
|
// Signal error
|
|
nResult = SNMPAPI_ERROR;
|
|
goto Exit;
|
|
}
|
|
}
|
|
|
|
MIB_UserTableElement = MIB_UserTable.Table + First_of_this_block ;
|
|
|
|
for(i=0; i<entriesread; i++) { // once for each entry in the buffer
|
|
|
|
|
|
// increment the entry number
|
|
|
|
MIB_UserTable.Len ++;
|
|
|
|
// Stuff the data into each item in the table
|
|
|
|
// convert the undocumented unicode to something readable
|
|
SnmpUtilUnicodeToUTF8(
|
|
&ansi_string,
|
|
DataTable->usri0_name,
|
|
TRUE ); // auto alloc the space for ansi
|
|
|
|
// client name
|
|
MIB_UserTableElement->svUserName.stream = ansi_string;
|
|
MIB_UserTableElement->svUserName.length =
|
|
strlen( ansi_string ) ;
|
|
MIB_UserTableElement->svUserName.dynamic = TRUE;
|
|
ansi_string = NULL;
|
|
MIB_UserTableElement ++ ; // and table entry
|
|
|
|
DataTable ++ ; // advance pointer to next sess entry in buffer
|
|
|
|
} // for each entry in the data table
|
|
|
|
// free all of the lan man data
|
|
SafeBufferFree( bufptr ) ;
|
|
|
|
// indicate where to start adding on next pass, if any
|
|
First_of_this_block = i ;
|
|
|
|
} // if data is valid to process
|
|
else
|
|
{
|
|
// Signal error
|
|
nResult = SNMPAPI_ERROR;
|
|
goto Exit;
|
|
}
|
|
|
|
} while (ERROR_MORE_DATA == lmCode) ;
|
|
|
|
// iterate over the table populating the Oid field
|
|
build_user_entry_oids();
|
|
|
|
// Sort the table information using MSC QuickSort routine
|
|
qsort( &MIB_UserTable.Table[0], MIB_UserTable.Len,
|
|
sizeof(USER_ENTRY), user_entry_cmp );
|
|
|
|
//
|
|
//
|
|
// Cache table
|
|
//
|
|
//
|
|
|
|
|
|
if(0 != MIB_UserTable.Len) {
|
|
|
|
cache_table[C_USER_TABLE].acquisition_time = curr_time ;
|
|
|
|
cache_table[C_USER_TABLE].bufptr = bufptr ;
|
|
}
|
|
|
|
//
|
|
//
|
|
// Return piece of information requested
|
|
//
|
|
//
|
|
Exit:
|
|
return nResult;
|
|
} // MIB_user_get
|
|
|
|
//
|
|
// MIB_user_cmp
|
|
// Routine for sorting the session table.
|
|
//
|
|
// Notes:
|
|
//
|
|
// Return Codes:
|
|
// SNMPAPI_NOERROR
|
|
// SNMPAPI_ERROR
|
|
//
|
|
// Error Codes:
|
|
// None.
|
|
//
|
|
int __cdecl user_entry_cmp(
|
|
IN const USER_ENTRY *A,
|
|
IN const USER_ENTRY *B
|
|
)
|
|
|
|
{
|
|
// Compare the OID's
|
|
return SnmpUtilOidCmp( (AsnObjectIdentifier *)&A->Oid,
|
|
(AsnObjectIdentifier *)&B->Oid );
|
|
} // MIB_user_cmp
|
|
|
|
|
|
//
|
|
// None.
|
|
//
|
|
void build_user_entry_oids(
|
|
)
|
|
|
|
{
|
|
AsnOctetString OSA ;
|
|
USER_ENTRY *UserEntry ;
|
|
unsigned i;
|
|
|
|
// start pointer at 1st guy in the table
|
|
UserEntry = MIB_UserTable.Table ;
|
|
|
|
// now iterate over the table, creating an oid for each entry
|
|
for( i=0; i<MIB_UserTable.Len ; i++) {
|
|
// for each entry in the session table
|
|
|
|
OSA.stream = UserEntry->svUserName.stream ;
|
|
OSA.length = UserEntry->svUserName.length ;
|
|
OSA.dynamic = FALSE;
|
|
|
|
// Make the entry's OID from string index
|
|
MakeOidFromStr( &OSA, &UserEntry->Oid );
|
|
|
|
UserEntry++; // point to the next guy in the table
|
|
|
|
} // for
|
|
|
|
} // build_user_entry_oids
|
|
//-------------------------------- END --------------------------------------
|