FreeCalypso > hg > fc-sim-tools
view utils/sim-iccid-mkfull.c @ 47:b0cf75d0bb2d
doc/Serial-SIM-readers article written
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 21 Mar 2021 04:32:18 +0000 |
parents | 372ecc4aa2c4 |
children |
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/* * 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); }