FreeCalypso > hg > fc-pcsc-tools

annotate simtool/bfsearch.c @ 179:efe944a5c4e3

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doc/Brute-force-search: update for data directory rename
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 02 Mar 2021 05:20:19 +0000
parents 26d7a8815515
children
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c2889812788e fc-simtool bfsearch implemented
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1 /*
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2 * This module implements a brute force search of file ID space at a given
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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 #include "file_id.h"
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12
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13 static
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14 parse_skip_ids(argv, array, total)
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15 char **argv;
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16 unsigned *array, total;
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17 {
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18 unsigned n;
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19
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20 for (n = 0; n < total; n++) {
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21 if (!isxdigit(argv[n][0]) || !isxdigit(argv[n][1]) ||
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22 !isxdigit(argv[n][2]) || !isxdigit(argv[n][3]) ||
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23 argv[n][4]) {
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24 fprintf(stderr, "error: argument is not 4-digit hex\n");
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25 return(-1);
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26 }
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27 array[n] = strtoul(argv[n], 0, 16);
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28 }
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29 return(0);
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30 }
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31
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32 static void
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33 report_ef_struct(outf)
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34 FILE *outf;
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35 {
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36 unsigned total_size, record_len;
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37
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38 fputs("EF, ", outf);
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39 total_size = (sim_resp_data[2] << 8) | sim_resp_data[3];
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40 switch (sim_resp_data[13]) {
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41 case 0x00:
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42 fprintf(outf, "transparent, length %u\n", total_size);
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43 return;
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44 case 0x01:
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45 fputs("linear fixed, ", outf);
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46 break;
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47 case 0x03:
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48 fputs("cyclic, ", outf);
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49 break;
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50 default:
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51 fprintf(outf, "struct 0x%02X\n", sim_resp_data[13]);
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52 return;
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53 }
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54 if (sim_resp_data_len < 15) {
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55 fprintf(outf, "response struct cut off\n");
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56 return;
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57 }
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58 record_len = sim_resp_data[14];
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59 fprintf(outf, "record length %u", record_len);
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60 if (record_len && total_size % record_len == 0)
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61 fprintf(outf, ", %u records", total_size / record_len);
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62 putc('\n', outf);
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63 }
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64
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65 cmd_bfsearch(argc, argv, outf)
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66 char **argv;
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67 FILE *outf;
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68 {
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69 unsigned skip_ids[8], num_skip_ids;
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70 unsigned bfs, n;
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71 int rc;
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72
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73 num_skip_ids = argc - 1;
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74 rc = parse_skip_ids(argv + 1, skip_ids, num_skip_ids);
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75 if (rc < 0)
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76 return(rc);
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77 rc = elem_select_op(skip_ids[0]);
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78 if (rc < 0)
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79 return(rc);
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80 if (!rc) {
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81 fprintf(stderr, "error: starting file ID 0x%04X not found\n",
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82 skip_ids[0]);
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83 return(-1);
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84 }
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85 for (bfs = 0; bfs <= 0xFFFF; bfs++) {
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86 for (n = 0; n < num_skip_ids; n++) {
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87 if (bfs == skip_ids[n])
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88 break;
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89 }
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90 if (n < num_skip_ids)
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91 continue;
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92 rc = elem_select_op(bfs);
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93 if (rc < 0)
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94 return(rc);
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95 if (!rc)
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96 continue;
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97 rc = get_response_op();
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98 if (rc < 0)
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99 return(rc);
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100 fprintf(outf, "%04X: ", bfs);
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101 if (sim_resp_data_len < 14)
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102 fprintf(outf, "too-short response struct\n");
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103 else {
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104 switch (sim_resp_data[6]) {
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105 case 0x01:
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106 fprintf(outf, "MF\n");
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107 break;
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108 case 0x02:
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109 fprintf(outf, "DF\n");
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110 break;
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111 case 0x04:
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112 report_ef_struct(outf);
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113 break;
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114 default:
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115 fprintf(outf, "unknown file type %02X\n",
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116 sim_resp_data[6]);
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117 }
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118 }
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119 rc = elem_select_op(skip_ids[0]);
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120 if (rc < 0)
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121 return(rc);
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122 if (!rc) {
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123 fprintf(stderr,
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124 "reselecting starting file ID 0x%04X not-found error\n",
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125 skip_ids[0]);
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126 return(-1);
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127 }
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128 }
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129 return(0);
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130 }
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131
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132 static
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133 bfsearch_dir(path, pathlen, siblings, nsiblings, outf)
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134 unsigned *path, pathlen, *siblings, nsiblings;
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135 FILE *outf;
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136 {
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137 unsigned bfs, n;
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138 unsigned df_children[255], ndfc;
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139 unsigned childpath[8];
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
140 int rc;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
141
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
142 for (n = 0; n < pathlen; n++) {
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
143 rc = elem_select_op(path[n]);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
144 if (rc < 0)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
145 return(rc);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
146 if (!rc) {
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
147 fprintf(stderr,
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
148 "error selecting 0x%04X: file not found\n",
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
149 path[n]);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
150 return(-1);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
151 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
152 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
153 ndfc = 0;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
154 for (bfs = 0; bfs <= 0xFFFF; bfs++) {
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
155 for (n = 0; n < pathlen; n++) {
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
156 if (bfs == path[n])
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
157 break;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
158 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
159 if (n < pathlen)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
160 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
161 for (n = 0; n < nsiblings; n++) {
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
162 if (bfs == siblings[n])
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
163 break;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
164 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
165 if (n < nsiblings)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
166 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
167 rc = elem_select_op(bfs);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
168 if (rc < 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
169 return(rc);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
170 if (!rc)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
171 continue;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
172 rc = get_response_op();
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
173 if (rc < 0)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
174 return(rc);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
175 for (n = 0; n < pathlen; n++)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
176 fprintf(outf, "%04X/", path[n]);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
177 fprintf(outf, "%04X: ", bfs);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
178 if (sim_resp_data_len < 14)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
179 fprintf(outf, "too-short response struct\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
180 else {
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
181 switch (sim_resp_data[6]) {
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
182 case 0x01:
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
183 fprintf(outf, "MF\n");
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
184 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
185 case 0x02:
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
186 fprintf(outf, "DF\n");
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
187 if (ndfc < 255)
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
188 df_children[ndfc++] = bfs;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
189 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
190 case 0x04:
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
191 report_ef_struct(outf);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
192 break;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
193 default:
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
194 fprintf(outf, "unknown file type %02X\n",
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
195 sim_resp_data[6]);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
196 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
197 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
198 rc = elem_select_op(path[pathlen-1]);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
199 if (rc < 0)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
200 return(rc);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
201 if (!rc) {
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
202 fprintf(stderr,
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
203 "reselecting starting file ID 0x%04X not-found error\n",
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
204 path[pathlen-1]);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
205 return(-1);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
206 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
207 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
208 if (pathlen >= 8)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
209 return(0);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
210 for (n = 0; n < pathlen; n++)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
211 childpath[n] = path[n];
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
212 for (n = 0; n < ndfc; n++) {
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
213 childpath[pathlen] = df_children[n];
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
214 rc = bfsearch_dir(childpath, pathlen + 1, df_children, ndfc,
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
215 outf);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
216 if (rc < 0)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
217 return(rc);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
218 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
219 return(0);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
220 }
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
221
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
222 cmd_bfsearch_full(argc, argv, outf)
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
223 char **argv;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
224 FILE *outf;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
225 {
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
226 unsigned initpath;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
227
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
228 initpath = FILEID_MF;
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
229 return bfsearch_dir(&initpath, 1, &initpath, 1, outf);
26d7a8815515 fc-simtool bfsearch-full implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 148
diff changeset
230 }