dist/ntp/sntp/libopts/numeric.c

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