FreeCalypso > hg > sms-coding-utils

annotate libcoding/alpha_addr_enc.c @ 31:19476164c54d

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doc/SMS-PDU-decoding: document imported utilities
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 Jun 2024 18:48:58 +0000
parents c8cb05b69118
children
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1 /*
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2 * This library module implements encoding of alphanumeric From addresses
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3 * that are allowed in SMS-DELIVER TPDUs.
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4 */
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5
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6 #include <sys/types.h>
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7
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c8cb05b69118 libcoding alpha addr: support both encoding and decoding
Mychaela Falconia <falcon@freecalypso.org>
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8 extern u_char alpha_septets_to_digits[12];
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10 encode_alpha_addr(arg, bin)
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11 char *arg;
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12 u_char *bin;
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13 {
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14 u_char gsm7[11];
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15 int rc;
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16
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17 rc = qstring_arg_to_gsm7(arg, gsm7, 11);
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18 if (rc < 0)
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19 return(rc);
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20 bin[0] = alpha_septets_to_digits[rc];
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21 bin[1] = 0x50;
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22 gsm7_pack(gsm7, bin + 2, (bin[0] + 1) >> 1);
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23 return(0);
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24 }