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annotate simtool/sstlist.c @ 71:a008f7a4bddf

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doc/User-oriented-commands: dump-lnd documented
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 15 Feb 2021 04:57:51 +0000
parents 090704d1ddc1
children 9c16cf1a79af
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1 /*
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2 * This module implements the sst command, listing the SIM Service Table
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3 * in a human-readable, yet very compact form: just a list of activated
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4 * (or allocated but not activated, specially marked) service numbers.
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5 */
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6
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7 #include <sys/types.h>
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8 #include <stdio.h>
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9 #include "simresp.h"
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10 #include "curfile.h"
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11 #include "file_id.h"
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12
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13 cmd_sst()
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14 {
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15 int rc;
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16 unsigned byte, pos, code, nserv, linelen;
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17
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18 rc = select_op(DF_GSM);
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19 if (rc < 0)
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20 return(rc);
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21 rc = select_op(EF_SST);
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22 if (rc < 0)
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23 return(rc);
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24 rc = parse_ef_select_response();
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25 if (rc < 0)
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26 return(rc);
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27 if (curfile_structure != 0x00) {
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28 fprintf(stderr, "error: EF_SST is not transparent\n");
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29 return(-1);
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30 }
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31 if (curfile_total_size < 2) {
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32 fprintf(stderr,
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33 "error: EF_SST is shorter than spec minimum of 2 bytes\n");
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34 return(-1);
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35 }
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36 if (curfile_total_size > 256) {
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37 fprintf(stderr,
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38 "error: EF_SST is longer than our 256 byte limit\n");
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39 return(-1);
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40 }
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41 rc = readbin_op(0, curfile_total_size);
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42 if (rc < 0)
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43 return(rc);
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44 linelen = 0;
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45 for (byte = 0, nserv = 1; byte < curfile_total_size; byte++) {
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46 for (pos = 0; pos < 8; pos += 2, nserv++) {
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47 code = (sim_resp_data[byte] >> pos) & 3;
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48 if (!(code & 1))
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49 continue;
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50 if (linelen > 73) {
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51 putchar('\n');
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52 linelen = 0;
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53 }
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54 if (linelen) {
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55 putchar(' ');
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56 linelen++;
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57 }
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58 linelen += printf("%u", nserv);
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59 if (!(code & 2)) {
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60 putchar('^');
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61 linelen++;
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62 }
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63 }
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64 }
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65 if (linelen)
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66 putchar('\n');
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67 return(0);
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68 }