FreeCalypso > hg > sms-coding-utils

annotate libcoding/gsm7_encode2.c @ 15:5854e48d0ef7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
sms-gen-tpdu: add support for alphanumeric user-addr
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 27 Aug 2023 06:43:23 +0000
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
15
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This module implements functions for parsing quoted string
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * arguments intended for GSM7 string encoding, and actually
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * encoding them into GSM7 binary strings.
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 */
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/types.h>
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <ctype.h>
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdio.h>
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 extern u_char gsm7_encode_table[256];
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 qstring_arg_to_gsm7(arg, record, maxlen)
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 char *arg;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 u_char *record;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 unsigned maxlen;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 {
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 unsigned acclen, nadd;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 char *cp;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 int c;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 cp = arg;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 for (acclen = 0; *cp; ) {
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 c = *cp++;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (c == '\\') {
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 if (*cp == '\0')
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 return(-1);
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 c = *cp++;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 if (c >= '0' && c <= '7' && isxdigit(*cp)) {
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 c = ((c - '0') << 4) | decode_hex_digit(*cp++);
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 goto bypass_encoding;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 }
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 switch (c) {
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 case 'n':
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 c = '\n';
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 goto bypass_encoding;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 case 'r':
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 c = '\r';
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 goto bypass_encoding;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 case 'e':
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 c = 0x1B;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 goto bypass_encoding;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 case 'E': /* Euro currency symbol */
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 c = 0xE5;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 goto bypass_encoding;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 case '"':
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 case '\\':
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 break;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 default:
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 return(-1);
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 }
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 }
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 c = gsm7_encode_table[c];
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 if (c == 0xFF)
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 return(-1);
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 bypass_encoding:
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 if (c & 0x80)
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 nadd = 2;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 else
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 nadd = 1;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 if (acclen + nadd > maxlen)
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 return(-1);
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 if (c & 0x80)
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 record[acclen++] = 0x1B;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 record[acclen++] = c & 0x7F;
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 }
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 return(acclen);
5854e48d0ef7 sms-gen-tpdu: add support for alphanumeric user-addr
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 }