36 lines
710 B
C
36 lines
710 B
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Copyright (C) 2003 Erik Andersen <andersee@debian.org>
|
|
*/
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <getopt.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
|
|
#include "busybox.h"
|
|
|
|
extern long bb_xgetlarg(char *arg, int base, long lower, long upper)
|
|
{
|
|
long result;
|
|
char *endptr;
|
|
int errno_save = errno;
|
|
|
|
assert(arg!=NULL);
|
|
|
|
/* Don't allow leading whitespace. */
|
|
if ((isspace)(*arg)) { /* Use an actual funciton call for minimal size. */
|
|
bb_show_usage();
|
|
}
|
|
|
|
errno = 0;
|
|
result = strtol(arg, &endptr, base);
|
|
if (errno != 0 || *endptr!='\0' || endptr==arg || result < lower || result > upper)
|
|
bb_show_usage();
|
|
errno = errno_save;
|
|
return result;
|
|
}
|