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ntp 4.2.6p5

    1: 
    2: /**
    3:  * \file boolean.c
    4:  *
    5:  * Time-stamp:      "2010-07-10 11:02:10 bkorb"
    6:  *
    7:  *   Automated Options Paged Usage module.
    8:  *
    9:  *  This routine will run run-on options through a pager so the
   10:  *  user may examine, print or edit them at their leisure.
   11:  *
   12:  *  This file is part of AutoOpts, a companion to AutoGen.
   13:  *  AutoOpts is free software.
   14:  *  AutoOpts is Copyright (c) 1992-2011 by Bruce Korb - all rights reserved
   15:  *
   16:  *  AutoOpts is available under any one of two licenses.  The license
   17:  *  in use must be one of these two and the choice is under the control
   18:  *  of the user of the license.
   19:  *
   20:  *   The GNU Lesser General Public License, version 3 or later
   21:  *      See the files "COPYING.lgplv3" and "COPYING.gplv3"
   22:  *
   23:  *   The Modified Berkeley Software Distribution License
   24:  *      See the file "COPYING.mbsd"
   25:  *
   26:  *  These files have the following md5sums:
   27:  *
   28:  *  43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3
   29:  *  06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3
   30:  *  66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
   31:  */
   32: 
   33: /*=export_func  optionBooleanVal
   34:  * private:
   35:  *
   36:  * what:  Decipher a boolean value
   37:  * arg:   + tOptions* + pOpts    + program options descriptor +
   38:  * arg:   + tOptDesc* + pOptDesc + the descriptor for this arg +
   39:  *
   40:  * doc:
   41:  *  Decipher a true or false value for a boolean valued option argument.
   42:  *  The value is true, unless it starts with 'n' or 'f' or "#f" or
   43:  *  it is an empty string or it is a number that evaluates to zero.
   44: =*/
   45: void
   46: optionBooleanVal( tOptions* pOpts, tOptDesc* pOD )
   47: {
   48:     char* pz;
   49:     ag_bool  res = AG_TRUE;
   50: 
   51:     if ((pOD->fOptState & OPTST_RESET) != 0)
   52:         return;
   53: 
   54:     if (pOD->optArg.argString == NULL) {
   55:         pOD->optArg.argBool = AG_FALSE;
   56:         return;
   57:     }
   58: 
   59:     switch (*(pOD->optArg.argString)) {
   60:     case '0':
   61:     {
   62:         long  val = strtol( pOD->optArg.argString, &pz, 0 );
   63:         if ((val != 0) || (*pz != NUL))
   64:             break;
   65:         /* FALLTHROUGH */
   66:     }
   67:     case 'N':
   68:     case 'n':
   69:     case 'F':
   70:     case 'f':
   71:     case NUL:
   72:         res = AG_FALSE;
   73:         break;
   74:     case '#':
   75:         if (pOD->optArg.argString[1] != 'f')
   76:             break;
   77:         res = AG_FALSE;
   78:     }
   79: 
   80:     if (pOD->fOptState & OPTST_ALLOC_ARG) {
   81:         AGFREE(pOD->optArg.argString);
   82:         pOD->fOptState &= ~OPTST_ALLOC_ARG;
   83:     }
   84:     pOD->optArg.argBool = res;
   85: }
   86: /*
   87:  * Local Variables:
   88:  * mode: C
   89:  * c-file-style: "stroustrup"
   90:  * indent-tabs-mode: nil
   91:  * End:
   92:  * end of autoopts/boolean.c */