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/contrib/ntp/libopts/numeric.c

https://bitbucket.org/freebsd/freebsd-head/
C | 93 lines | 18 code | 7 blank | 68 comment | 7 complexity | 2a05bc9bd45691824d2e3330c39804f1 MD5 | raw file
 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=*/
60void
61optionNumericVal( 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 */