/*
 * This program is a special utility for constructing ICCIDs
 * following the 18+1 convention.  The argument is an 18-digit ICCID
 * base, usually entered in shorthand, and the output is the full
 * 19-digit ICCID.
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>

main(argc, argv)
	char **argv;
{
	u_char digits[19];
	char asc[20];
	int rc;

	if (argc != 2) {
		fprintf(stderr, "usage: %s shorthand-iccid\n", argv[0]);
		exit(1);
	}
	rc = parse_decimal_shorthand(argv[1], digits, 18);
	if (rc < 0)
		exit(1);	/* error msg already printed */
	digits[18] = compute_iccid_luhn(digits);
	nibbles_to_ascii(digits, 19, asc);
	puts(asc);
	exit(0);
}