/*
 * This module implements a function for incrementing decimal strings,
 * to be used in producing ranges of ICCID and IMSI numbers.
 */

#include <sys/types.h>

void
decimal_string_increment(str, ndigits)
	u_char *str;
	unsigned ndigits;
{
	u_char *p;

	for (p = str + ndigits; p > str; ) {
		--p;
		(*p)++;
		if (*p < 10)
			return;
		*p = 0;
	}
}