FreeCalypso > hg > freecalypso-tools

annotate loadtools/flprotreg.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents cf7bd5e705ed
children
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712
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1 /*
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2 * This module implements commands dealing with Intel flash protection
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3 * register, which holds the IMEI on Compal phones.
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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 <stdio.h>
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8 #include <stdint.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12 #include "flash.h"
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13
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14 extern struct flash_bank_info flash_bank_info[2];
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15
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16 flashcmd_protreg(argc, argv, bank)
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17 char **argv;
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18 {
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19 struct flash_bank_info *bi;
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20 uint16_t data[9];
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21 int rc;
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22
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23 if (argc > 2) {
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24 fprintf(stderr, "error: too many arguments\n");
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25 return(-1);
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26 }
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27 if (flash_detect(bank, 0) < 0)
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28 return(-1);
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29 bi = flash_bank_info + bank;
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30 rc = bi->ops->read_prot_reg(bi, data);
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31 if (rc)
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32 return(rc);
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33 printf("Lock word: %04X\n", data[0]);
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34 printf("Factory words: %04X %04X %04X %04X\n", data[1], data[2],
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35 data[3], data[4]);
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36 printf("User words: %04X %04X %04X %04X\n", data[5], data[6], data[7],
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37 data[8]);
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38 return(0);
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39 }
713
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40
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41 static int
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42 compute_cd(digits)
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43 u_char *digits;
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44 {
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45 int i, dig, sum;
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46
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47 sum = 0;
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48 for (i = 0; i < 14; i++) {
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49 dig = digits[i];
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50 if (i & 1) {
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51 dig *= 2;
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52 if (dig > 9)
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53 dig -= 9;
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54 }
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55 sum += dig;
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56 }
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57 dig = sum % 10;
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58 if (dig)
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59 dig = 10 - dig;
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60 return dig;
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61 }
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62
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63 static void
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64 format_imei(digits, strout)
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65 u_char *digits;
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66 char *strout;
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67 {
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68 int i;
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69 char *dp;
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70
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71 dp = strout;
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72 for (i = 0; i < 15; i++) {
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73 if (i == 8 || i == 14)
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74 *dp++ = '-';
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75 *dp++ = digits[i] + '0';
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76 }
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77 *dp = '\0';
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78 }
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79
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80 flashcmd_compal_imei(argc, argv, bank)
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81 char **argv;
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82 {
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83 struct flash_bank_info *bi;
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84 uint16_t data[9];
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85 u_char nibbles[16], *dp;
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86 char imei_str[18];
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87 int rc, i, j;
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88 FILE *of;
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89
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90 if (argc > 3) {
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91 fprintf(stderr, "error: too many arguments\n");
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92 return(-1);
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93 }
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94 if (flash_detect(bank, 0) < 0)
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95 return(-1);
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96 bi = flash_bank_info + bank;
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97 rc = bi->ops->read_prot_reg(bi, data);
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98 if (rc)
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99 return(rc);
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100 dp = nibbles;
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101 for (i = 0; i < 4; i++) {
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102 rc = data[i + 5];
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103 for (j = 0; j < 4; j++) {
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104 *dp++ = rc & 0xF;
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105 rc >>= 4;
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106 }
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107 }
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108 for (i = 1; i < 16; i++) {
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109 if (nibbles[i] > 9) {
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110 bad_imei: fprintf(stderr, "No Compal IMEI found\n");
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111 return(-1);
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112 }
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113 }
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114 if (compute_cd(nibbles+1) != nibbles[15])
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115 goto bad_imei;
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116 format_imei(nibbles+1, imei_str);
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117 puts(imei_str);
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118 if (argc < 3)
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119 return(0);
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120 of = fopen(argv[2], "w");
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121 if (!of) {
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122 perror(argv[2]);
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123 return(-1);
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124 }
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125 fprintf(of, "%s\n", imei_str);
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126 fclose(of);
cf7bd5e705ed fc-loadtool: flash compal-imei command implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 712
diff changeset
127 printf("Saved to %s\n", argv[2]);
cf7bd5e705ed fc-loadtool: flash compal-imei command implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 712
diff changeset
128 return(0);
cf7bd5e705ed fc-loadtool: flash compal-imei command implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 712
diff changeset
129 }