FreeCalypso > hg > freecalypso-hwlab
annotate simtool/saverestore.c @ 115:0dcd666292e4
fc-simtool: pb-erase-one command implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 28 Jan 2021 02:56:10 +0000 |
parents | fa7005185b84 |
children | b563ff1c1a2a |
rev | line source |
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1 /* |
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2 * This module implements commands for saving SIM file content in UNIX host |
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3 * files and restoring these backups back to the SIM. |
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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 <sys/file.h> |
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8 #include <sys/stat.h> |
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9 #include <stdio.h> |
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10 #include <stdlib.h> |
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11 #include <unistd.h> |
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12 #include <pcsclite.h> |
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13 #include <winscard.h> |
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14 #include "globals.h" |
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15 |
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16 static |
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17 savebin_transparent(outf) |
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18 FILE *outf; |
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19 { |
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20 unsigned off, cc; |
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21 int rc; |
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22 |
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23 for (off = 0; off < curfile_total_size; off += cc) { |
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24 cc = curfile_total_size - off; |
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25 if (cc > 256) |
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26 cc = 256; |
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27 rc = readbin_op(off, cc); |
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28 if (rc < 0) |
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29 return(rc); |
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30 fwrite(sim_resp_data, 1, cc, outf); |
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31 } |
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32 return(0); |
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33 } |
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34 |
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35 static |
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36 savebin_records(outf) |
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37 FILE *outf; |
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38 { |
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39 unsigned recno; |
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40 int rc; |
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41 |
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42 for (recno = 1; recno <= curfile_record_count; recno++) { |
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43 rc = readrec_op(recno, 0x04, curfile_record_len); |
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44 if (rc < 0) |
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45 return(rc); |
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46 fwrite(sim_resp_data, curfile_record_len, 1, outf); |
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47 } |
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48 return(0); |
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49 } |
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50 |
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51 cmd_savebin(argc, argv) |
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52 char **argv; |
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53 { |
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54 int file_id, rc; |
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55 unsigned readlen; |
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56 FILE *of; |
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57 |
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58 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) && |
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59 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4]) |
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60 file_id = strtoul(argv[1], 0, 16); |
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61 else |
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62 file_id = find_symbolic_file_name(argv[1]); |
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63 if (file_id < 0) { |
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64 fprintf(stderr, |
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65 "error: file ID argument is not a hex value or a recognized symbolic name\n"); |
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66 return(-1); |
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67 } |
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68 rc = select_op(file_id); |
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69 if (rc < 0) |
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70 return(rc); |
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71 rc = parse_ef_select_response(); |
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72 if (rc < 0) |
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73 return(rc); |
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74 of = fopen(argv[2], "w"); |
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75 if (!of) { |
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76 perror(argv[2]); |
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77 return(-1); |
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78 } |
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79 switch (curfile_structure) { |
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80 case 0x00: |
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81 /* transparent */ |
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82 rc = savebin_transparent(of); |
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83 break; |
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84 case 0x01: |
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85 case 0x03: |
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86 /* record-based */ |
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87 rc = savebin_records(of); |
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88 break; |
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89 } |
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90 fclose(of); |
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91 return(rc); |
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92 } |
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93 |
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94 static |
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95 restore_transparent(data) |
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96 u_char *data; |
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97 { |
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98 unsigned off, cc; |
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99 int rc; |
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100 |
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101 for (off = 0; off < curfile_total_size; off += cc) { |
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102 cc = curfile_total_size - off; |
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103 if (cc > 255) |
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104 cc = 255; |
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105 rc = update_bin_op(off, data + off, cc); |
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106 if (rc < 0) |
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107 return(rc); |
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108 } |
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109 return(0); |
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110 } |
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111 |
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112 static |
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113 restore_records(data) |
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114 u_char *data; |
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115 { |
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116 unsigned recno; |
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117 u_char *dp; |
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118 int rc; |
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119 |
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120 dp = data; |
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121 for (recno = 1; recno <= curfile_record_count; recno++) { |
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122 rc = update_rec_op(recno, 0x04, dp, curfile_record_len); |
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123 if (rc < 0) |
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124 return(rc); |
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125 dp += curfile_record_len; |
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126 } |
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127 return(0); |
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128 } |
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129 |
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130 cmd_restore_file(argc, argv) |
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131 char **argv; |
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132 { |
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133 int file_id, rc, fd; |
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134 struct stat st; |
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135 u_char *databuf; |
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136 |
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137 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) && |
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138 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4]) |
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139 file_id = strtoul(argv[1], 0, 16); |
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140 else |
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141 file_id = find_symbolic_file_name(argv[1]); |
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142 if (file_id < 0) { |
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143 fprintf(stderr, |
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144 "error: file ID argument is not a hex value or a recognized symbolic name\n"); |
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145 return(-1); |
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146 } |
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147 rc = select_op(file_id); |
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148 if (rc < 0) |
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149 return(rc); |
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150 rc = parse_ef_select_response(); |
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151 if (rc < 0) |
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152 return(rc); |
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153 if (!curfile_total_size) { |
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154 printf("SIM indicates file of zero length, nothing to do\n"); |
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155 return(0); |
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156 } |
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157 fd = open(argv[2], O_RDONLY); |
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158 if (fd < 0) { |
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159 perror(argv[2]); |
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160 return(-1); |
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161 } |
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162 fstat(fd, &st); |
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163 if ((st.st_mode & S_IFMT) != S_IFREG) { |
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164 fprintf(stderr, "error: %s is not a regular file\n", argv[2]); |
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165 close(fd); |
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166 return(-1); |
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167 } |
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168 if (st.st_size != curfile_total_size) { |
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169 fprintf(stderr, |
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170 "error: length of %s does not match SIM EF length of %u bytes\n", |
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171 argv[2], curfile_total_size); |
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172 close(fd); |
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173 return(-1); |
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174 } |
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175 databuf = malloc(curfile_total_size); |
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176 if (!databuf) { |
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177 perror("malloc for file data"); |
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178 close(fd); |
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179 return(-1); |
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180 } |
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181 read(fd, databuf, curfile_total_size); |
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182 close(fd); |
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183 switch (curfile_structure) { |
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184 case 0x00: |
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185 /* transparent */ |
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186 rc = restore_transparent(databuf); |
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187 break; |
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188 case 0x01: |
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189 /* record-based */ |
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190 rc = restore_records(databuf); |
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191 break; |
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192 case 0x03: |
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193 fprintf(stderr, "error: cyclic files are not supported\n"); |
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194 rc = -1; |
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195 } |
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196 free(databuf); |
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197 return(rc); |
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198 } |