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annotate uicc/erasefile.c @ 101:1888d88478c4

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fc-simtool write-hplmn-timer new command
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 14 May 2022 22:54:19 +0000
parents 5560261fc516
children
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1 /*
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2 * This module implements the erase-file command.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <ctype.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include "efstruct.h"
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12
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13 static
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14 erase_transparent(efs, fill_byte)
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15 struct ef_struct *efs;
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16 {
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17 u_char data[255];
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18 unsigned off, cc;
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19 int rc;
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20
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21 memset(data, fill_byte, 255);
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22 for (off = 0; off < efs->total_size; off += cc) {
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23 cc = efs->total_size - off;
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24 if (cc > 255)
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25 cc = 255;
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26 rc = update_bin_op(off, data, cc);
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27 if (rc < 0)
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28 return(rc);
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29 }
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30 return(0);
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31 }
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32
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33 static
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34 erase_records(efs, fill_byte)
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35 struct ef_struct *efs;
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36 {
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37 u_char data[255];
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38 unsigned recno;
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39 int rc;
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40
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41 memset(data, fill_byte, efs->record_len);
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42 for (recno = 1; recno <= efs->record_count; recno++) {
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43 rc = update_rec_op(recno, 0x04, data, efs->record_len);
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44 if (rc < 0)
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45 return(rc);
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46 }
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47 return(0);
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48 }
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49
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50 static
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51 erase_cyclic(efs, fill_byte)
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52 struct ef_struct *efs;
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53 {
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54 u_char data[255];
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55 unsigned count;
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56 int rc;
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57
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58 memset(data, fill_byte, efs->record_len);
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59 for (count = 0; count < efs->record_count; count++) {
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60 rc = update_rec_op(0, 0x03, data, efs->record_len);
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61 if (rc < 0)
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62 return(rc);
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63 }
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64 return(0);
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65 }
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66
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67 cmd_erase_file(argc, argv)
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68 char **argv;
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69 {
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70 int file_id, rc;
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71 struct ef_struct efs;
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72 unsigned fill_byte;
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73
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74 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) &&
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75 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4])
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76 file_id = strtoul(argv[1], 0, 16);
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77 else
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78 file_id = find_symbolic_file_name(argv[1]);
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79 if (file_id < 0) {
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80 fprintf(stderr,
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81 "error: file ID argument is not a hex value or a recognized symbolic name\n");
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82 return(-1);
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83 }
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84 rc = select_op(file_id);
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85 if (rc < 0)
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86 return(rc);
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87 rc = select_resp_get_ef_struct(&efs);
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88 if (rc < 0)
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89 return(rc);
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90 if (argc > 2) {
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91 fill_byte = strtoul(argv[2], 0, 16);
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92 if (fill_byte > 0xFF) {
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93 fprintf(stderr, "error: invalid fill byte argument\n");
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94 return(-1);
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95 }
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96 } else
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97 fill_byte = 0xFF;
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98 switch (efs.structure) {
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99 case 0x01:
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100 /* transparent */
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101 rc = erase_transparent(&efs, fill_byte);
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102 break;
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103 case 0x02:
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104 /* record-based */
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105 rc = erase_records(&efs, fill_byte);
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106 break;
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107 case 0x06:
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108 /* cyclic */
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109 rc = erase_cyclic(&efs, fill_byte);
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110 break;
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111 }
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112 return(rc);
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113 }