contrib/ntp/libopts/numeric.c

   1
   2 /*
   3  *  $Id: numeric.c,v 4.11 2007/02/04 17:44:12 bkorb Exp $
   4  *  Time-stamp:      "2007-01-13 10:28:20 bkorb"
   5  */
   6
   7 /*
   8  *  Automated Options copyright 1992-2007 Bruce Korb
   9  *
  10  *  Automated Options is free software.
  11  *  You may redistribute it and/or modify it under the terms of the
  12  *  GNU General Public License, as published by the Free Software
  13  *  Foundation; either version 2, or (at your option) any later version.
  14  *
  15  *  Automated Options is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with Automated Options.  See the file "COPYING".  If not,
  22  *  write to:  The Free Software Foundation, Inc.,
  23  *             51 Franklin Street, Fifth Floor,
  24  *             Boston, MA  02110-1301, USA.
  25  *
  26  * As a special exception, Bruce Korb gives permission for additional
  27  * uses of the text contained in his release of AutoOpts.
  28  *
  29  * The exception is that, if you link the AutoOpts library with other
  30  * files to produce an executable, this does not by itself cause the
  31  * resulting executable to be covered by the GNU General Public License.
  32  * Your use of that executable is in no way restricted on account of
  33  * linking the AutoOpts library code into it.
  34  *
  35  * This exception does not however invalidate any other reasons why
  36  * the executable file might be covered by the GNU General Public License.
  37  *
  38  * This exception applies only to the code released by Bruce Korb under
  39  * the name AutoOpts.  If you copy code from other sources under the
  40  * General Public License into a copy of AutoOpts, as the General Public
  41  * License permits, the exception does not apply to the code that you add
  42  * in this way.  To avoid misleading anyone as to the status of such
  43  * modified files, you must delete this exception notice from them.
  44  *
  45  * If you write modifications of your own for AutoOpts, it is your choice
  46  * whether to permit this exception to apply to your modifications.
  47  * If you do not wish that, delete this exception notice.
  48  */
  49
  50 /*=export_func  optionNumericVal
  51  * private:
  52  *
  53  * what:  Decipher a boolean value
  54  * arg:   + tOptions* + pOpts    + program options descriptor +
  55  * arg:   + tOptDesc* + pOptDesc + the descriptor for this arg +
  56  *
  57  * doc:
  58  *  Decipher a numeric value.
  59 =*/
  60 void
  61 optionNumericVal( tOptions* pOpts, tOptDesc* pOD )
  62 {
  63     char* pz;
  64     long  val;
  65
  66     /*
  67      *  Numeric options may have a range associated with it.
  68      *  If it does, the usage procedure requests that it be
  69      *  emitted by passing a NULL pOD pointer.
  70      */
  71     if ((pOD == NULL) || (pOD->optArg.argString == NULL))
  72         return;
  73
  74     val = strtol( pOD->optArg.argString, &pz, 0 );
  75     if (*pz != NUL) {
  76         fprintf( stderr, zNotNumber, pOpts->pzProgName, pOD->optArg.argString );
  77         (*(pOpts->pUsageProc))(pOpts, EXIT_FAILURE);
  78     }
  79
  80     if (pOD->fOptState & OPTST_ALLOC_ARG) {
  81         AGFREE(pOD->optArg.argString);
  82         pOD->fOptState &= ~OPTST_ALLOC_ARG;
  83     }
  84
  85     pOD->optArg.argInt = val;
  86 }
  87 /*
  88  * Local Variables:
  89  * mode: C
  90  * c-file-style: "stroustrup"
  91  * indent-tabs-mode: nil
  92  * End:
  93  * end of autoopts/numeric.c */