scan_loc.c

wm PNE 3.3 source code, running at more than vxworks6.x version.

/*
 *  Copyright 2000-2005 Wind River Systems, Inc.
 *  All rights reserved.  Provided under license only.
 *  Distribution or other use of this software is only
 *  permitted pursuant to the terms of a license agreement
 *  from Wind River Systems (and is otherwise prohibited).
 *  Refer to that license agreement for terms of use.
 */

/*
 *  Copyright 1991-1997 Epilogue Technology Corporation.
 *  Copyright 1998 Integrated Systems, Inc.
 *  All rights reserved.
 */

/*
 * $Log: scan_loc.c,v $
 * Revision 1.2  2001/11/06 21:20:27  josh
 * revised new path hacking
 *
 * Revision 1.1.1.1  2001/11/05 17:47:40  tneale
 * Tornado shuffle
 *
 * Revision 9.2  2001/01/19 22:21:59  paul
 * Update copyright.
 *
 * Revision 9.1  2000/03/17 00:17:45  meister
 * Update copyright message
 *
 * Revision 9.0  1998/10/16 22:09:48  sar
 * Update version stamp to match release
 *
 * Revision 8.2  1998/06/05 18:53:00  sra
 * "#include <foo.h>" => "#include <envoy/h/foo.h>".
 *
 * Revision 8.1  1998/02/25 04:50:09  sra
 * Update copyrights.
 *
 * Revision 8.0  1997/11/18 00:56:16  sar
 * Updated revision to 8.0
 *
 * Revision 7.2  1997/03/20 06:50:26  sra
 * DFARS-safe copyright text.  Zap!
 *
 * Revision 7.1  1997/02/25 10:49:26  sra
 * Update copyright notice, dust under the bed.
 *
 * Revision 7.0  1996/03/15 22:21:24  sar
 * Updated revision to 7.0 and copyright to 96
 *
 * Revision 6.1  1996/01/05  19:02:18  sar
 * Removed no_pp style definitions as well as unnecessary include files
 *
 * Revision 6.0  1995/05/31  21:50:55  sra
 * Release 6.0.
 *
 * Revision 5.0  1994/05/16  15:29:57  sar
 * Updated revision to 5.0 and copyright to 1994
 *
 * Revision 4.0  1993/06/24  15:58:43  sar
 * Updated rev to 4.0 and copyright to 93
 *
 * Revision 3.2  1993/06/02  23:07:24  dab
 * Changed #ifdef's to #if's for things from install.h
 *
 * Revision 3.1  1993/04/26  20:22:55  sar
 * Added ifdefs to allow clean version 1 or version 2 makes.
 *
 * Revision 3.0  1992/04/03  19:53:01  dab
 * Release 3.0
 *
 * Revision 1.2  91/10/30  20:38:41  dab
 * Directly include asn1conf.h and snmpdefs.h.
 * 
 * Revision 1.1  91/10/24  11:09:05  dab
 * Initial revision
 * 
 */

/* [clearcase]
modification history
-------------------
01b,18apr05,job  update copyright notices
01a,24nov03,job  update copyright information
*/

#include <wrn/wm/snmp/engine/asn1conf.h>
#include <wrn/wm/snmp/engine/asn1.h>
#include <wrn/wm/snmp/engine/localio.h>
#include <wrn/wm/snmp/engine/buffer.h>
#include <wrn/wm/snmp/engine/decode.h>
#include <wrn/wm/snmp/engine/snmpdefs.h>
#include <wrn/wm/snmp/engine/snmp.h>
#include <wrn/wm/snmp/engine/mib.h>
#include <wrn/wm/snmp/engine/auxfuncs.h>

/****************************************************************************
NAME:  scan_vb_for_locator

PURPOSE:  scan the VB list of a packet structure looking for a particular
	  locator value.

PARAMETERS:
	  SNMP_PKT_T *	The whole received packet.
	  int		The index of the VB_T where to start the search
			(0 is the index of the first VB_T).
	  UINT_16_T	The desired locator.

RETURNS:  int		The index in the varBindList of the VB_T which
			references the MIB leaf with the specified locator.
			-1 if none are found.

CAVEAT: It is assumed that the vb_ml field of the various VB_Ts has been
	already set and has valid contents.

NOTE: It is possible for a VB list to have more VB_Ts which
reference the same MIB leaf.

****************************************************************************/
int
scan_vb_for_locator(SNMP_PKT_T *	pktp,
		    int			vb_index,
		    UINT_16_T		loc)
{
  VB_T *	vbp;
  VBL_T *	vblp;
  
#if INSTALL_ENVOY_SNMP_VERSION_1
  if (pktp->pdu_type == TRAP_PDU)
    vblp = &(pktp->pdu.trap_pdu.trap_vbl);  
  else
#endif
    vblp = &(pktp->pdu.std_pdu.std_vbl);

  for (vbp = &(vblp->vblist[vb_index]);
       vb_index < vblp->vbl_count;
       vb_index++,  vbp++) {
    if ((vbp->vb_ml.ml_leaf)->locator == loc)
      return vb_index;
  }
  
  return -1;	/* Not found */
}