109 lines
2.4 KiB
C
109 lines
2.4 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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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <errno.h>
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#include <wsutil/strtoi.h>
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#include <wsutil/cmdarg_err.h>
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#include "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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gint32 number;
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if (!ws_strtoi32(string, NULL, &number)) {
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if (errno == EINVAL) {
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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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cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
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name, string, number);
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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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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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guint32
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get_guint32(const char *string, const char *name)
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{
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guint32 number;
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if (!ws_strtou32(string, NULL, &number)) {
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if (errno == EINVAL) {
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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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cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
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name, string, number);
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exit(1);
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}
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return number;
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}
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guint32
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get_nonzero_guint32(const char *string, const char *name)
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{
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guint32 number;
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number = get_guint32(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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double
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get_positive_double(const char *string, const char *name)
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{
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double number = g_ascii_strtod(string, NULL);
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if (errno == EINVAL) {
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cmdarg_err("The specified %s \"%s\" isn't a floating point number", name, string);
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exit(1);
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}
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if (number < 0.0) {
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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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return number;
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}
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