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/* clopts_common.c
* Handle command-line arguments common to various programs
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include "clopts_common.h"
#include <stdlib.h>
#include <errno.h>
#include <wsutil/strtoi.h>
#include <wsutil/cmdarg_err.h>
int
get_natural_int(const char *string, const char *name)
{
int32_t number;
if (!ws_strtoi32(string, NULL, &number)) {
if (errno == EINVAL) {
cmdarg_err("The specified %s \"%s\" isn't a decimal number", name, string);
exit(1);
}
if (number < 0) {
cmdarg_err("The specified %s \"%s\" is a negative number", name, string);
exit(1);
}
cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
name, string, number);
exit(1);
}
if (number < 0) {
cmdarg_err("The specified %s \"%s\" is a negative number", name, string);
exit(1);
}
return (int)number;
}
int
get_positive_int(const char *string, const char *name)
{
int number;
number = get_natural_int(string, name);
if (number == 0) {
cmdarg_err("The specified %s is zero", name);
exit(1);
}
return number;
}
uint32_t
get_guint32(const char *string, const char *name)
{
uint32_t number;
if (!ws_strtou32(string, NULL, &number)) {
if (errno == EINVAL) {
cmdarg_err("The specified %s \"%s\" isn't a decimal number", name, string);
exit(1);
}
cmdarg_err("The specified %s \"%s\" is too large (greater than %d)",
name, string, number);
exit(1);
}
return number;
}
uint32_t
get_nonzero_guint32(const char *string, const char *name)
{
uint32_t number;
number = get_guint32(string, name);
if (number == 0) {
cmdarg_err("The specified %s is zero", name);
exit(1);
}
return number;
}
double
get_positive_double(const char *string, const char *name)
{
double number = g_ascii_strtod(string, NULL);
if (errno == EINVAL) {
cmdarg_err("The specified %s \"%s\" isn't a floating point number", name, string);
exit(1);
}
if (number < 0.0) {
cmdarg_err("The specified %s \"%s\" is a negative number", name, string);
exit(1);
}
return number;
}
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