FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/number_decode.c @ 926:6a0aa8d36d06

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents ea41b6001848
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
331
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This library module implements the decoding of number (address) digits.
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <sys/types.h>
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 char gsm_address_digits[16] =
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 {'0','1','2','3','4','5','6','7','8','9','*','#','a','b','c','?'};
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 decode_address_digits(inbuf, outbuf, ndigits)
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 u_char *inbuf;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 char *outbuf;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 unsigned ndigits;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 {
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 u_char *inp = inbuf;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 char *outp = outbuf;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 unsigned n = 0, b;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 while (n < ndigits) {
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 b = *inp++;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 *outp++ = gsm_address_digits[b & 0xF];
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 n++;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 if (n >= ndigits)
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 break;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 *outp++ = gsm_address_digits[b >> 4];
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 n++;
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 }
332
ea41b6001848 uptools/libcoding: SC address decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 331
diff changeset
28 *outp = '\0';
331
110fffa1f001 uptools/libcoding: digit decoding implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 }