forked from osmocom/wireshark
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/* clopts_common.c
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* Handle command-line arguments common to various programs
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <wsutil/cmdarg_err.h>
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#include <wsutil/clopts_common.h>
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int
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get_natural_int(const char *string, const char *name)
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{
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long number;
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char *p;
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number = strtol(string, &p, 10);
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if (p == string || *p != '\0') {
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cmdarg_err("The specified %s \"%s\" isn't a decimal number", name, string);
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exit(1);
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}
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if (number < 0) {
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cmdarg_err("The specified %s \"%s\" is a negative number", name, string);
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exit(1);
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}
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if (number > INT_MAX) {
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cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
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name, string, INT_MAX);
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exit(1);
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}
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return (int)number;
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}
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int
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get_positive_int(const char *string, const char *name)
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{
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int number;
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number = get_natural_int(string, name);
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if (number == 0) {
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cmdarg_err("The specified %s is zero", name);
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exit(1);
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}
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return number;
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}
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