FreeCalypso > hg > sms-coding-utils
comparison libcoding/alpha_addr_enc.c @ 26:c8cb05b69118
libcoding alpha addr: support both encoding and decoding
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 13 Jun 2024 01:55:19 +0000 |
parents | libcoding/alpha_addr.c@5854e48d0ef7 |
children |
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25:2a19b44c272e | 26:c8cb05b69118 |
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1 /* | |
2 * This library module implements encoding of alphanumeric From addresses | |
3 * that are allowed in SMS-DELIVER TPDUs. | |
4 */ | |
5 | |
6 #include <sys/types.h> | |
7 | |
8 extern u_char alpha_septets_to_digits[12]; | |
9 | |
10 encode_alpha_addr(arg, bin) | |
11 char *arg; | |
12 u_char *bin; | |
13 { | |
14 u_char gsm7[11]; | |
15 int rc; | |
16 | |
17 rc = qstring_arg_to_gsm7(arg, gsm7, 11); | |
18 if (rc < 0) | |
19 return(rc); | |
20 bin[0] = alpha_septets_to_digits[rc]; | |
21 bin[1] = 0x50; | |
22 gsm7_pack(gsm7, bin + 2, (bin[0] + 1) >> 1); | |
23 return(0); | |
24 } |