/*
*         OpenPBS (Portable Batch System) v2.3 Software License
*
* Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
* All rights reserved.
*
* ---------------------------------------------------------------------------
* For a license to use or redistribute the OpenPBS software under conditions
* other than those described below, or to purchase support for this software,
* 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,
* are permitted provided that all of the following conditions are met.
* After December 31, 2001, only conditions 3-6 must be met:
*
* 1. Commercial and/or non-commercial use of the Software is permitted
*    provided a current software registration is on file at www.OpenPBS.org.
*    If use of this software contributes to a publication, product, or
*    service, proper attribution must be given; see www.OpenPBS.org/credit.html
*
* 2. Redistribution in any form is only permitted for non-commercial,
*    non-profit purposes.  There can be no charge for the Software or any
*    software incorporating the Software.  Further, there can be no
*    expectation of revenue generated as a consequence of redistributing
*    the Software.
*
* 3. Any Redistribution of source code must retain the above copyright notice
*    and the acknowledgment contained in paragraph 6, this list of conditions
*    and the disclaimer contained in paragraph 7.
*
* 4. Any Redistribution in binary form must reproduce the above copyright
*    notice and the acknowledgment contained in paragraph 6, this list of
*    conditions and the disclaimer contained in paragraph 7 in the
*    documentation and/or other materials provided with the distribution.
*
* 5. Redistributions in any form must be accompanied by information on how to
*    obtain complete source code for the OpenPBS software and any
*    modifications and/or additions to the OpenPBS software.  The source code
*    must either be included in the distribution or be available for no more
*    than the cost of distribution plus a nominal fee, and all modifications
*    and additions to the Software must be freely redistributable by any party
*    (including Licensor) without restriction.
*
* 6. All advertising materials mentioning features or use of the Software must
*    display the following acknowledgment:
*
*     "This product includes software developed by NASA Ames Research Center,
*     Lawrence Livermore National Laboratory, and Veridian Information
*     Solutions, Inc.
*     Visit www.OpenPBS.org for OpenPBS software support,
*     products, and information."
*
* 7. DISCLAIMER OF WARRANTY
*
* THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT
* ARE EXPRESSLY DISCLAIMED.
*
* IN NO EVENT SHALL VERIDIAN CORPORATION, ITS AFFILIATED COMPANIES, OR THE
* U.S. GOVERNMENT OR ANY OF ITS AGENCIES BE LIABLE FOR ANY DIRECT OR INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This license will be governed by the laws of the Commonwealth of Virginia,
* without reference to its choice of law rules.
*/
/* $Id$ */

/* Convert a an allocation value string to its equivalent value in bytes. */

#include <sys/param.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "toolkit.h"

/* Power-of-two unit multipliers. */
#define KILO ((size_t)1024)
#define MEGA (KILO*1024)
#define GIGA (MEGA*1024)
#define TERA (GIGA*1024)

size_t
schd_val2byte(char *val)
  {
  /* char   *id = "schd_val2byte"; */
  int     b = 0;
  size_t num = 0;
  char   *p;

#if 0
  /* Dead code as of Feb 10, 1998.  Remove no later than Feb 10, 1999. */
  char buffer[1000];
#endif /* 0 */

  if (val == NULL)
    return (0);

  b = 0;

  num = 0;

  num = strtoul(val, &p, 0);

#if 0
  /* Dead code as of Feb 10, 1998.  Remove no later than Feb 10, 1999. */
  (void) sprintf(buffer, "1: val=[%s] num=%lld, p=[%s]", val, num, p);

  log_record(1, 1, id, buffer);

#endif /* 0 */

  /* Now 'p' should point to first non-number character. */

  /* If no units given, return the number. */
  if ((p == val) || (*p == '\0'))
    return (num); /* XXX return num if p == val? */

  /* Parse the given order of magnitude. */
  switch (*p)
    {

    case 'k':

    case 'K':
      num *= KILO;
      break;

    case 'm':

    case 'M':
      num *= MEGA;
      break;

    case 'g':

    case 'G':
      num *= GIGA;
      break;

    case 't':

    case 'T':
      num *= TERA;
      break;

    case 'b':

    case 'B':
      b++;
      break;

    default:
      return (-1);
    }

  /* XXX if (b && *p != '\0') return error. */

  /* Parse the word-size unit. */
  p++;

  if ((*p != '\0') && !b)
    {
    switch (*p)
      {

      case 'b':

      case 'B':
        break;

      case 'w':

      case 'W':
        num *= NBPW; /* Multiply by size of word. */
        break;

      default:
        return (-1);
      }
    }

  /* Return the total number of bytes represented by the value. */
  return (num);
  }
