view libutil/decimal_incr.c @ 70:ce3752d3d3b4

doc/SIM-in-Calypso-phone: update for fc-host-tools-r15 release
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 27 Mar 2021 19:44:31 +0000
parents 9c9f6adbaedb
children
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/*
 * 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;
	}
}