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Annotation of embedaddon/ntp/sntp/libopts/reset.c, revision 1.1

1.1     ! misho       1: 
        !             2: /**
        !             3:  * \file reset.c
        !             4:  *
        !             5:  *  Time-stamp:      "2010-07-10 10:56:34 bkorb"
        !             6:  *
        !             7:  *  This file is part of AutoOpts, a companion to AutoGen.
        !             8:  *  AutoOpts is free software.
        !             9:  *  AutoOpts is Copyright (c) 1992-2011 by Bruce Korb - all rights reserved
        !            10:  *
        !            11:  *  AutoOpts is available under any one of two licenses.  The license
        !            12:  *  in use must be one of these two and the choice is under the control
        !            13:  *  of the user of the license.
        !            14:  *
        !            15:  *   The GNU Lesser General Public License, version 3 or later
        !            16:  *      See the files "COPYING.lgplv3" and "COPYING.gplv3"
        !            17:  *
        !            18:  *   The Modified Berkeley Software Distribution License
        !            19:  *      See the file "COPYING.mbsd"
        !            20:  *
        !            21:  *  These files have the following md5sums:
        !            22:  *
        !            23:  *  43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3
        !            24:  *  06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3
        !            25:  *  66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
        !            26:  */
        !            27: 
        !            28: static void
        !            29: optionReset( tOptions* pOpts, tOptDesc* pOD )
        !            30: {
        !            31:     pOD->fOptState &= OPTST_PERSISTENT_MASK;
        !            32:     pOD->fOptState |= OPTST_RESET;
        !            33:     if (pOD->pOptProc != NULL)
        !            34:         pOD->pOptProc(pOpts, pOD);
        !            35:     pOD->optArg.argString =
        !            36:         pOpts->originalOptArgArray[ pOD->optIndex ].argString;
        !            37:     pOD->optCookie = pOpts->originalOptArgCookie[ pOD->optIndex ];
        !            38:     pOD->fOptState &= OPTST_PERSISTENT_MASK;
        !            39: }
        !            40: 
        !            41: 
        !            42: static void
        !            43: optionResetEverything(tOptions * pOpts)
        !            44: {
        !            45:     tOptDesc * pOD = pOpts->pOptDesc;
        !            46:     int        ct  = pOpts->presetOptCt;
        !            47: 
        !            48:     for (;;) {
        !            49:         optionReset(pOpts, pOD);
        !            50: 
        !            51:         if (--ct <= 0)
        !            52:             break;
        !            53:         pOD++;
        !            54:     }
        !            55: }
        !            56: 
        !            57: 
        !            58: /*=export_func  optionResetOpt
        !            59:  * private:
        !            60:  *
        !            61:  * what:  Reset the value of an option
        !            62:  * arg:   + tOptions* + pOpts    + program options descriptor  +
        !            63:  * arg:   + tOptDesc* + pOptDesc + the descriptor for this arg +
        !            64:  *
        !            65:  * doc:
        !            66:  *  This code will cause another option to be reset to its initial state.
        !            67:  *  For example, --reset=foo will cause the --foo option to be reset.
        !            68: =*/
        !            69: void
        !            70: optionResetOpt( tOptions* pOpts, tOptDesc* pOD )
        !            71: {
        !            72:     static ag_bool reset_active = AG_FALSE;
        !            73: 
        !            74:     tOptState opt_state = OPTSTATE_INITIALIZER(DEFINED);
        !            75:     char const * pzArg = pOD->optArg.argString;
        !            76:     tSuccess     succ;
        !            77: 
        !            78:     if (reset_active)
        !            79:         return;
        !            80: 
        !            81:     if (  (! HAS_originalOptArgArray(pOpts))
        !            82:        || (pOpts->originalOptArgCookie == NULL)) {
        !            83:         fputs(zResetNotConfig, stderr);
        !            84:         _exit(EX_SOFTWARE);
        !            85:     }
        !            86: 
        !            87:     if ((pzArg == NULL) || (*pzArg == NUL)) {
        !            88:         fputs(zNoResetArg, stderr);
        !            89:         pOpts->pUsageProc(pOpts, EXIT_FAILURE);
        !            90:         /* NOTREACHED */
        !            91:         assert(0 == 1);
        !            92:     }
        !            93: 
        !            94:     reset_active = AG_TRUE;
        !            95: 
        !            96:     if (pzArg[1] == NUL) {
        !            97:         if (*pzArg == '*') {
        !            98:             optionResetEverything(pOpts);
        !            99:             reset_active = AG_FALSE;
        !           100:             return;
        !           101:         }
        !           102: 
        !           103:         succ = shortOptionFind(pOpts, (tAoUC)*pzArg, &opt_state);
        !           104:         if (! SUCCESSFUL(succ)) {
        !           105:             fprintf(stderr, zIllOptChr, pOpts->pzProgPath, *pzArg);
        !           106:             pOpts->pUsageProc(pOpts, EXIT_FAILURE);
        !           107:             /* NOTREACHED */
        !           108:             assert(0 == 1);
        !           109:         }
        !           110:     } else {
        !           111:         succ = longOptionFind(pOpts, (char *)pzArg, &opt_state);
        !           112:         if (! SUCCESSFUL(succ)) {
        !           113:             fprintf(stderr, zIllOptStr, pOpts->pzProgPath, pzArg);
        !           114:             pOpts->pUsageProc(pOpts, EXIT_FAILURE);
        !           115:             /* NOTREACHED */
        !           116:             assert(0 == 1);
        !           117:         }
        !           118:     }
        !           119: 
        !           120:     /*
        !           121:      *  We've found the indicated option.  Turn off all non-persistent
        !           122:      *  flags because we're forcing the option back to its initialized state.
        !           123:      *  Call any callout procedure to handle whatever it needs to.
        !           124:      *  Finally, clear the reset flag, too.
        !           125:      */
        !           126:     optionReset(pOpts, opt_state.pOD);
        !           127:     reset_active = AG_FALSE;
        !           128: }
        !           129: /*
        !           130:  * Local Variables:
        !           131:  * mode: C
        !           132:  * c-file-style: "stroustrup"
        !           133:  * indent-tabs-mode: nil
        !           134:  * End:
        !           135:  * end of autoopts/reset.c */