/*
*         OpenPBS (Portable Batch System) v2.3 Software License
*
* Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
* All rights reserved.
*
* ---------------------------------------------------------------------------
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* please contact Veridian Systems, PBS Products Department ("Licensor") at:
*
*    www.OpenPBS.org  +1 650 967-4675                  sales@OpenPBS.org
*                        877 902-4PBS (US toll-free)
* ---------------------------------------------------------------------------
*
* This license covers use of the OpenPBS v2.3 software (the "Software") at
* your site or location, and, for certain users, redistribution of the
* Software to other sites and locations.  Use and redistribution of
* OpenPBS v2.3 in source and binary forms, with or without modification,
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* After December 31, 2001, only conditions 3-6 must be met:
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*/

/*
 * decode_DIS_svrattrl() - decode into a list of server "svrattrl" structures
 *
 * The space for the svrattrl structures is allocated as needed.
 *
 * The first item is a unsigned integer, a count of the
 * number of svrattrl entries in the linked list.  This is encoded
 * even when there are no entries in the list.
 *
 * Each individual entry is encoded as:
 *  u int size of the three strings (name, resource, value)
 *   including the terminating nulls
 *  string attribute name
 *  u int 1 or 0 if resource name does or does not follow
 *  string resource name (if one)
 *  string  value of attribute/resource
 *  u int "op" of attrlop
 *
 * Note, the encoding of a svrattrl is the same as the encoding of
 * the pbs_ifl.h structures "attrl" and "attropl".  Any one of
 * the three forms can be decoded into any of the three with the
 * possible loss of the "flags" field (which is the "op" of the attrlop).
 */

#include <pbs_config.h>   /* the master config generated by configure */

#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "libpbs.h"
#include "list_link.h"
#include "attribute.h"
#include "dis.h"

int decode_DIS_svrattrl(
    
  struct tcp_chan *chan,
  tlist_head      *phead)

  {
  unsigned int  i;
  unsigned int  hasresc;
  size_t        ls;
  unsigned int  data_len;
  unsigned int  numattr;
  svrattrl     *psvrat = NULL;
  int           rc;
  size_t        tsize;


  numattr = disrui(chan, &rc); /* number of attributes in set */

  if (rc) return rc;

  for (i = 0; i < numattr; ++i)
    {
    data_len = disrui(chan, &rc); /* here it is used */

    if (data_len == 0)
      data_len = sizeof(char);

    if (rc)
      return(rc);

    tsize = sizeof(svrattrl) + data_len + 2; /*add 2 for nulls name & resc*/

    if ((psvrat = (svrattrl *)calloc(1, tsize)) == 0)
      return DIS_NOMALLOC;

    CLEAR_LINK(psvrat->al_link);

    psvrat->al_atopl.next = 0;

    psvrat->al_tsize = tsize;

    psvrat->al_name  = (char *)psvrat + sizeof(svrattrl);

    psvrat->al_resc  = 0;

    psvrat->al_value = 0;

    psvrat->al_nameln = 0;

    psvrat->al_rescln = 0;

    psvrat->al_valln  = 0;

    psvrat->al_flags  = 0;

    if ((rc = disrfcs(chan, &ls, data_len, psvrat->al_name)))
      break;

    *(psvrat->al_name + ls++) = '\0';

    psvrat->al_nameln = (int)ls;

    data_len -= ls;

    hasresc = disrui(chan, &rc);

    if (rc) 
      break;

    if (hasresc)
      {
      psvrat->al_resc = psvrat->al_name + ls;

      if ((rc = disrfcs(chan, &ls, data_len, psvrat->al_resc)))
        break;

      *(psvrat->al_resc + ls++) = '\0';

      psvrat->al_rescln = (int)ls;

      data_len -= ls;
      }

    psvrat->al_value  = psvrat->al_name + psvrat->al_nameln +

                        psvrat->al_rescln;

    if ((rc = disrfcs(chan, &ls, data_len, psvrat->al_value)))
      break;

    *(psvrat->al_value + ls++) = '\0';

    psvrat->al_valln = (int)ls;

    psvrat->al_op = (enum batch_op)disrui(chan, &rc);

    if (rc) break;

    append_link(phead, &psvrat->al_link, psvrat);
    }

  if (rc)
    {
    (void)free(psvrat);
    }

  return (rc);
  }



