FreeCalypso > hg > fc-sim-tools

comparison libutil/decimal_incr.c @ 25:9c9f6adbaedb

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sim-iccid-mkrange utility added
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 15 Mar 2021 09:07:20 +0000
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24:47a491a16de3 25:9c9f6adbaedb
1 /*
2 * This module implements a function for incrementing decimal strings,
3 * to be used in producing ranges of ICCID and IMSI numbers.
4 */
5
6 #include <sys/types.h>
7
8 void
9 decimal_string_increment(str, ndigits)
10 u_char *str;
11 unsigned ndigits;
12 {
13 u_char *p;
14
15 for (p = str + ndigits; p > str; ) {
16 --p;
17 (*p)++;
18 if (*p < 10)
19 return;
20 *p = 0;
21 }
22 }