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annotate simtool/bfsearch.c @ 146:8d55571c8118

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fc-simtool bfsearch: forgot output redirection support
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 25 Feb 2021 06:10:00 +0000
parents c2889812788e
children db43bc57ecf7
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c2889812788e fc-simtool bfsearch implemented
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1 /*
c2889812788e fc-simtool bfsearch implemented
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2 * This module implements a brute force search of file ID space at a given
c2889812788e fc-simtool bfsearch implemented
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3 * file system directory level.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <ctype.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include "simresp.h"
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11
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12 static
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13 parse_skip_ids(argv, array, total)
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14 char **argv;
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15 unsigned *array, total;
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16 {
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17 unsigned n;
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18
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19 for (n = 0; n < total; n++) {
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20 if (!isxdigit(argv[n][0]) || !isxdigit(argv[n][1]) ||
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21 !isxdigit(argv[n][2]) || !isxdigit(argv[n][3]) ||
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22 argv[n][4]) {
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23 fprintf(stderr, "error: argument is not 4-digit hex\n");
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24 return(-1);
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25 }
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26 array[n] = strtoul(argv[n], 0, 16);
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27 }
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28 return(0);
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29 }
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30
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31 cmd_bfsearch(argc, argv, outf)
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32 char **argv;
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33 FILE *outf;
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34 {
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35 unsigned skip_ids[8], num_skip_ids;
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36 unsigned bfs, n;
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37 int rc;
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38
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39 num_skip_ids = argc - 1;
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40 rc = parse_skip_ids(argv + 1, skip_ids, num_skip_ids);
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41 if (rc < 0)
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42 return(rc);
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43 rc = elem_select_op(skip_ids[0]);
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44 if (rc < 0)
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45 return(rc);
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46 if (!rc) {
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47 fprintf(stderr, "error: starting file ID 0x%04X not found\n",
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48 skip_ids[0]);
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49 return(-1);
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50 }
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51 for (bfs = 0; bfs <= 0xFFFF; bfs++) {
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52 for (n = 0; n < num_skip_ids; n++) {
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53 if (bfs == skip_ids[n])
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54 break;
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55 }
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56 if (n < num_skip_ids)
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57 continue;
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58 rc = elem_select_op(bfs);
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59 if (rc < 0)
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60 return(rc);
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61 if (!rc)
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62 continue;
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63 rc = get_response_op();
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64 if (rc < 0)
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65 return(rc);
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66 if (sim_resp_data_len < 14)
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67 fprintf(outf, "%04X: too-short response struct\n", bfs);
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68 else {
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69 switch (sim_resp_data[6]) {
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70 case 0x01:
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71 fprintf(outf, "%04X: MF\n", bfs);
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72 break;
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73 case 0x02:
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74 fprintf(outf, "%04X: DF\n", bfs);
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75 break;
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76 case 0x04:
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77 fprintf(outf, "%04X: EF (struct %02X)\n", bfs,
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78 sim_resp_data[13]);
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79 break;
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80 default:
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81 fprintf(outf, "%04X: unknown file type %02X\n",
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82 bfs, sim_resp_data[6]);
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83 }
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84 }
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85 rc = elem_select_op(skip_ids[0]);
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86 if (rc < 0)
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87 return(rc);
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88 if (!rc) {
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89 fprintf(stderr,
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90 "reselecting starting file ID 0x%04X not-found error\n",
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91 skip_ids[0]);
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92 return(-1);
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93 }
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94 }
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95 return(0);
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96 }