Listing 3.2
SMBtrans Messages

#define BROWSE_REQUEST_ELECTION 0x08

static smb_Transaction_Request TReqs[1];

static const ushort MailSlotSetup[3]
                    = { 0x0001, 0x0001, 0x0002 };
static const uchar *MailSlotName
                    = "\\MAILSLOT\\BROWSE";


int ElectionRequest( uchar *bufr,
                     int    bSize,
                     ulong  Criteria,
                     ulong  Uptime,
                     uchar *ServerName)
  /* ---------------------------------------------------- **
   * Marshal an Election Request record.
   *
   * Returns the number of bytes used.
   * ---------------------------------------------------- **
   */
  {
  size_t len;
  uchar  buildData[32];

  /* Initialize the TReqs block.
   */
  (void)memset( TReqs, 0, sizeof(smb_Transaction_Request) );
  TReqs->SetupCount = 3;
  TReqs->Setup      = MailSlotSetup;
  TReqs->Name       = MailSlotName;

  /* Build the Browser message in 'buildData'.
   */
  (void)memset( buildData, '\0', 32 );
  buildData[0] = BROWSE_REQUEST_ELECTION;
  len = 15;

  /* If the ServerName is empty, assume that the
   * request is for a zero-filled election message.
   * Otherwise, fill in the rest of the message.
   */
  if( NULL != ServerName && '\0' != *ServerName )
    {
    buildData[1] = 1;                        /* Version.  */
    smb_SetLong( buildData, 2, Criteria );   /* Criteria. */
    smb_SetLong( buildData, 6, Uptime );     /* Uptime.   */
                                /* Skip 4 reserved bytes. */

    /* Copy the ServerName, and make sure there's a nul.
     * Count the nul in the total.
     */
    (void)strncpy( &(buildbufr[15]), ServerName, 15 );
    bufr[31] = '\0';
    len += 1 + strlen( &(buildbufr[15]) );
    }

  /* Finish filling in the transaction request structure.
   */
  TReqs->TotalDataCount = (ushort)len;
  TReqs->Data           = buildData;

  /* Write the transaction into the buffer.
   * Return the transaction message size.
   */
  len = smb_TransRequest( bufr, bSize, TReqs );
  return( len );
  } /* ElectionRequest */

$Revision: 1.2 $ $Date: 2003/05/28 20:17:40 $

Copyright © 1999-2003 Christopher R. Hertel  Released under the terms of the LGPL