FreeCalypso > hg > osmo-playpen

annotate smsc-sendmt/smsc_addr.c @ 11:44148d13283c

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add top level Makefile
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 27 Aug 2023 13:39:51 -0800
parents 18b7f75fed9b
children 7543aa173634
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1 /*
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2 * This C module is being stashed here temporarily until we figure out
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3 * where this function ultimately needs to go. The parsing of the SMSC
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4 * address is being moved out of proto-smsc-daemon to proto-smsc-sendmt,
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5 * but we haven't started putting together the latter program yet.
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6 */
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7
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8 #include <ctype.h>
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9 #include <string.h>
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10 #include <stdio.h>
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11 #include <stdlib.h>
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13 char smsc_addr_num[21]; /* maximum of 20 digits per GSM 04.11 */
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14 uint8_t smsc_addr_ton_npi;
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15
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16 void parse_smsc_addr_arg(char *arg)
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17 {
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18 char *cp, *dp, *endp;
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19 unsigned ndig;
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20
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21 cp = arg;
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22 dp = smsc_addr_num;
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23 ndig = 0;
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24 while (isdigit(*cp)) {
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25 if (ndig >= 20) {
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26 fprintf(stderr,
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27 "error: SMSC address argument exceeds GSM 04.11 limit of 20 digits\n");
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28 exit(1);
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29 }
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30 *dp++ = *cp++;
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31 ndig++;
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32 }
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33 if (!ndig) {
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34 invalid: fprintf(stderr,
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35 "error: SMSC address argument \"%s\" is invalid\n",
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36 arg);
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37 exit(1);
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38 }
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39 if (!*cp) {
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40 /* default to TON=1, NPI=1, i.e., a pretend Global Title */
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41 smsc_addr_ton_npi = 0x91;
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42 return;
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43 }
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44 if (*cp++ != ',')
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45 goto invalid;
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46 if (!*cp)
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47 goto invalid;
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48 smsc_addr_ton_npi = strtoul(cp, &endp, 0);
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49 if (*endp)
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50 goto invalid;
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51 }