sas_incr.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 1995-1997 Epilogue Technology Corporation.
 *  Copyright 1998 Integrated Systems, Inc.
 *  All rights reserved.
 */

/*
 * $Log: sas_incr.c,v $
 * Revision 1.3  2002/11/22 18:54:44  josh
 * testproc for testAndIncr objects now returns wrongValue error if
 * value set is out of range for a testAndIncr object
 *
 * Revision 1.2  2001/11/06 21:20:26  josh
 * revised new path hacking
 *
 * Revision 1.1.1.1  2001/11/05 17:47:40  tneale
 * Tornado shuffle
 *
 * Revision 9.3  2001/01/19 22:21:58  paul
 * Update copyright.
 *
 * Revision 9.2  2000/03/17 00:17:43  meister
 * Update copyright message
 *
 * Revision 9.1  1999/05/24 20:12:07  josh
 * 'compc' and 'compl' have been replaced by 'tcount' and 'tlist'
 * to avoid C++ compiler errors.
 *
 * Revision 9.0  1998/10/16 22:09:42  sar
 * Update version stamp to match release
 *
 * Revision 8.3  1998/06/19 20:18:52  sar
 * Make all files include asn1conf.h and snmp.h to make sure we get the
 * common code
 *
 * Revision 8.2  1998/06/05 18:52:58  sra
 * "#include <foo.h>" => "#include <envoy/h/foo.h>".
 *
 * Revision 8.1  1998/02/25 04:50:02  sra
 * Update copyrights.
 *
 * Revision 8.0  1997/11/18 00:56:14  sar
 * Updated revision to 8.0
 *
 * Revision 7.2  1997/03/20 06:50:22  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 1.3  1996/01/05  18:58:29  sar
 * added a scalar check - a single subid of 0
 *
 * Revision 1.2  1995/11/11  00:00:48  sar
 * modified the functions names to be *_TestAndIncr_async to match
 * the mib compiler %t option.
 *
 * Revision 1.1  1995/11/01  00:55:20  sar
 * 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/snmpdefs.h>
#include <wrn/wm/snmp/engine/snmp.h>
#include <wrn/wm/snmp/engine/auxfuncs.h>

/* restore the value that we saved in the set proc */
void
  undo_TestAndIncr_async(OIDC_T	     lastmatch,
			 int	     tcount,
			 OIDC_T	    *tlist,
			 SNMP_PKT_T *pktp,
			 VB_T	    *vbp)
{
*(INT_32_T *)(VB_TO_COOKIE(vbp)) = (INT_32_T)vbp->vb_priv;
undoproc_good(pktp, vbp);
return;
}


/* Perform a test operation on a test and increment variable.
   The value being set must match the current value or we return
   with an inconsistent value error.  */

void
  test_TestAndIncr_async(OIDC_T	     lastmatch,
			 int	     tcount,
			 OIDC_T	    *tlist,
			 SNMP_PKT_T *pktp,
			 VB_T	    *vbp)
{
if ((tcount != 1) || (*tlist != 0))
    testproc_error(pktp, vbp, NO_CREATION);
    
if (*(INT_32_T *)(VB_TO_COOKIE(vbp)) == VB_GET_INT32(vbp))
    testproc_good(pktp, vbp);
else if ((VB_GET_INT32(vbp) < 0) || (VB_GET_INT32(vbp) > 0x7fffffff))
    testproc_error(pktp, vbp, WRONG_VALUE);
else
    testproc_error(pktp, vbp, INCONSISTENT_VALUE);

return;
}

/* Perform a set operation on a test and increment variable.
   We increment the value and wrap it if we get to 2^32, we
   also save the old value in case we need to undo the set */

void
  set_TestAndIncr_async(OIDC_T	    lastmatch,
			int	    tcount,
			OIDC_T	   *tlist,
			SNMP_PKT_T *pktp,
			VB_T	   *vbp)
{
/* save the current information in case we need to undo the set */
vbp->vb_priv = (PTR_T)(*(INT_32_T *)(VB_TO_COOKIE(vbp)));

if ((*(INT_32_T *)(VB_TO_COOKIE(vbp)) = (VB_GET_INT32(vbp) + 1)) < 0)
    *(INT_32_T *)(VB_TO_COOKIE(vbp)) = 0;
    
undoproc_set(pktp, vbp, undo_TestAndIncr_async);
setproc_good(pktp, vbp);
return;
}