diff options
Diffstat (limited to 'contrib/ntp/sntp/libopts/numeric.c')
-rw-r--r-- | contrib/ntp/sntp/libopts/numeric.c | 198 |
1 files changed, 142 insertions, 56 deletions
diff --git a/contrib/ntp/sntp/libopts/numeric.c b/contrib/ntp/sntp/libopts/numeric.c index 05ee9b5..ab8f3d1 100644 --- a/contrib/ntp/sntp/libopts/numeric.c +++ b/contrib/ntp/sntp/libopts/numeric.c @@ -1,90 +1,176 @@ -/* - * $Id: numeric.c,v 4.11 2007/02/04 17:44:12 bkorb Exp $ - * Time-stamp: "2007-01-13 10:28:20 bkorb" +/** + * \file numeric.c + * + * Handle options with numeric (integer) arguments. + * + * @addtogroup autoopts + * @{ */ - /* - * Automated Options copyright 1992-2007 Bruce Korb - * - * Automated Options is free software. - * You may redistribute it and/or modify it under the terms of the - * GNU General Public License, as published by the Free Software - * Foundation; either version 2, or (at your option) any later version. + * This file is part of AutoOpts, a companion to AutoGen. + * AutoOpts is free software. + * AutoOpts is Copyright (C) 1992-2015 by Bruce Korb - all rights reserved * - * Automated Options is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * AutoOpts is available under any one of two licenses. The license + * in use must be one of these two and the choice is under the control + * of the user of the license. * - * You should have received a copy of the GNU General Public License - * along with Automated Options. See the file "COPYING". If not, - * write to: The Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. + * The GNU Lesser General Public License, version 3 or later + * See the files "COPYING.lgplv3" and "COPYING.gplv3" * - * As a special exception, Bruce Korb gives permission for additional - * uses of the text contained in his release of AutoOpts. + * The Modified Berkeley Software Distribution License + * See the file "COPYING.mbsd" * - * The exception is that, if you link the AutoOpts library with other - * files to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public License. - * Your use of that executable is in no way restricted on account of - * linking the AutoOpts library code into it. + * These files have the following sha256 sums: * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public License. + * 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3 + * 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3 + * 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd + */ + +/*=export_func optionShowRange + * private: * - * This exception applies only to the code released by Bruce Korb under - * the name AutoOpts. If you copy code from other sources under the - * General Public License into a copy of AutoOpts, as the General Public - * License permits, the exception does not apply to the code that you add - * in this way. To avoid misleading anyone as to the status of such - * modified files, you must delete this exception notice from them. + * what: Show info about range constraints + * arg: + tOptions * + pOpts + program options descriptor + + * arg: + tOptDesc * + pOptDesc + the descriptor for this arg + + * arg: + void * + rng_table + the value range tables + + * arg: + int + rng_count + the number of entries + * - * If you write modifications of your own for AutoOpts, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. - */ + * doc: + * Show information about a numeric option with range constraints. +=*/ +void +optionShowRange(tOptions * pOpts, tOptDesc * pOD, void * rng_table, int rng_ct) +{ + const struct {long const rmin, rmax;} * rng = rng_table; + + char const * pz_indent = zTabHyp + tab_skip_ct; + + /* + * The range is shown only for full usage requests and an error + * in this particular option. + */ + if (pOpts != OPTPROC_EMIT_USAGE) { + if (pOpts <= OPTPROC_EMIT_LIMIT) + return; + pz_indent = ONE_TAB_STR; + + fprintf(option_usage_fp, zRangeErr, pOpts->pzProgName, + pOD->pz_Name, pOD->optArg.argInt); + pz_indent = ""; + } + + if (pOD->fOptState & OPTST_SCALED_NUM) + fprintf(option_usage_fp, zRangeScaled, pz_indent); + + fprintf(option_usage_fp, (rng_ct > 1) ? zRangeLie : zRangeOnly, pz_indent); + pz_indent = (pOpts != OPTPROC_EMIT_USAGE) + ? ONE_TAB_STR + : (zTabSpace + tab_skip_ct); + + for (;;) { + if (rng->rmax == LONG_MIN) + fprintf(option_usage_fp, zRangeExact, pz_indent, rng->rmin); + else if (rng->rmin == LONG_MIN) + fprintf(option_usage_fp, zRangeUpto, pz_indent, rng->rmax); + else if (rng->rmax == LONG_MAX) + fprintf(option_usage_fp, zRangeAbove, pz_indent, rng->rmin); + else + fprintf(option_usage_fp, zRange, pz_indent, rng->rmin, + rng->rmax); + + if (--rng_ct <= 0) { + fputc(NL, option_usage_fp); + break; + } + fputs(zRangeOr, option_usage_fp); + rng++; + } + + if (pOpts > OPTPROC_EMIT_LIMIT) + pOpts->pUsageProc(pOpts, EXIT_FAILURE); +} /*=export_func optionNumericVal * private: * - * what: Decipher a boolean value - * arg: + tOptions* + pOpts + program options descriptor + - * arg: + tOptDesc* + pOptDesc + the descriptor for this arg + + * what: process an option with a numeric value. + * arg: + tOptions * + opts + program options descriptor + + * arg: + tOptDesc * + od + the descriptor for this arg + * * doc: * Decipher a numeric value. =*/ void -optionNumericVal( tOptions* pOpts, tOptDesc* pOD ) +optionNumericVal(tOptions * opts, tOptDesc * od) { - char* pz; - long val; + char * pz; + long val; + + /* + * Guard against all the different ways this procedure might get invoked + * when there is no string argument provided. + */ + if (INQUERY_CALL(opts, od) || (od->optArg.argString == NULL)) + return; /* * Numeric options may have a range associated with it. * If it does, the usage procedure requests that it be - * emitted by passing a NULL pOD pointer. + * emitted by passing a NULL od pointer. Also bail out + * if there is no option argument or if we are being reset. */ - if ((pOD == NULL) || (pOD->optArg.argString == NULL)) + if ( (od == NULL) + || (od->optArg.argString == NULL) + || ((od->fOptState & OPTST_RESET) != 0)) return; - val = strtol( pOD->optArg.argString, &pz, 0 ); - if (*pz != NUL) { - fprintf( stderr, zNotNumber, pOpts->pzProgName, pOD->optArg.argString ); - (*(pOpts->pUsageProc))(pOpts, EXIT_FAILURE); - } + errno = 0; + val = strtol(od->optArg.argString, &pz, 0); + if ((pz == od->optArg.argString) || (errno != 0)) + goto bad_number; - if (pOD->fOptState & OPTST_ALLOC_ARG) { - AGFREE(pOD->optArg.argString); - pOD->fOptState &= ~OPTST_ALLOC_ARG; + if ((od->fOptState & OPTST_SCALED_NUM) != 0) + switch (*(pz++)) { + case NUL: pz--; break; + case 't': val *= 1000; + case 'g': val *= 1000; + case 'm': val *= 1000; + case 'k': val *= 1000; break; + + case 'T': val *= 1024; + case 'G': val *= 1024; + case 'M': val *= 1024; + case 'K': val *= 1024; break; + + default: goto bad_number; + } + + if (*pz != NUL) + goto bad_number; + + if (od->fOptState & OPTST_ALLOC_ARG) { + AGFREE(od->optArg.argString); + od->fOptState &= ~OPTST_ALLOC_ARG; } - pOD->optArg.argInt = val; + od->optArg.argInt = val; + return; + + bad_number: + + fprintf( stderr, zNotNumber, opts->pzProgName, od->optArg.argString ); + if ((opts->fOptSet & OPTPROC_ERRSTOP) != 0) + (*(opts->pUsageProc))(opts, EXIT_FAILURE); + + errno = EINVAL; + od->optArg.argInt = ~0; } -/* + +/** @} + * * Local Variables: * mode: C * c-file-style: "stroustrup" |