FreeCalypso > hg > freecalypso-tools
annotate ffstools/tiffs-rd/main.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | d68275d47a32 |
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rev | line source |
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0
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1 /* |
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2 * This C module contains the main() function for the tiffs utility, |
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3 * dispatching control to different operation commands. |
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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 <string.h> |
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11 #include <strings.h> |
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12 #include "types.h" |
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13 #include "globals.h" |
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14 |
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15 parse_org_arg(arg) |
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16 char *arg; |
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17 { |
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18 char *cp; |
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19 |
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20 cp = index(arg, 'x'); |
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21 if (!cp || !isdigit(cp[1]) || !isdigit(arg[0])) { |
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22 fprintf(stderr, |
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23 "error: TIFFS organization argument \"%s\" is invalid\n", arg); |
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24 exit(1); |
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25 } |
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26 *cp++ = '\0'; |
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27 if (!strcmp(arg, "8")) |
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28 eraseblk_size = 0x2000; |
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29 else if (!strcmp(arg, "16")) |
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30 eraseblk_size = 0x4000; |
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31 else if (!strcmp(arg, "32")) |
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32 eraseblk_size = 0x8000; |
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33 else if (!strcmp(arg, "64")) |
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34 eraseblk_size = 0x10000; |
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35 else if (!strcmp(arg, "128")) |
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36 eraseblk_size = 0x20000; |
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37 else if (!strcmp(arg, "256")) |
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38 eraseblk_size = 0x40000; |
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39 else { |
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40 fprintf(stderr, |
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41 "error: \"%s\" is not a recognized flash sector size\n", |
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42 arg); |
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43 exit(1); |
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44 } |
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45 total_blocks = atoi(cp); |
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46 if (total_blocks < 1 || total_blocks > 128) { |
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47 fprintf(stderr, |
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48 "error: \"%s\" is not a reasonable number of FFS sectors\n", |
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49 cp); |
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50 exit(1); |
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51 } |
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52 total_ffs_size = eraseblk_size * total_blocks; |
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53 inode_limit = eraseblk_size >> 4; |
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54 } |
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55 |
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56 extern int cmd_blkhdr(); |
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57 extern int cmd_cat(); |
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58 extern int cmd_catino(); |
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59 extern int cmd_decode(); |
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60 extern int cmd_fsinfo(); |
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61 extern int cmd_ls(); |
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62 extern int cmd_lsino(); |
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63 extern int cmd_xtr(); |
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64 |
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65 static struct cmdtab { |
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66 char *cmd; |
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67 int (*func)(); |
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68 } cmdtab[] = { |
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69 {"blkhdr", cmd_blkhdr}, |
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70 {"cat", cmd_cat}, |
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71 {"catino", cmd_catino}, |
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72 {"decode", cmd_decode}, |
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73 {"fsck", NULL}, |
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74 {"fsinfo", cmd_fsinfo}, |
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75 {"ls", cmd_ls}, |
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76 {"lsino", cmd_lsino}, |
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77 {"xtr", cmd_xtr}, |
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78 {NULL, NULL} |
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79 }; |
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80 |
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81 main(argc, argv) |
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82 char **argv; |
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83 { |
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84 extern int optind; |
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85 extern char *optarg; |
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86 int c; |
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87 char *cmd; |
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88 struct cmdtab *tp; |
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89 |
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90 while ((c = getopt(argc, argv, "+a:o:Or:v")) != EOF) |
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91 switch (c) { |
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92 case 'a': |
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93 index_blk_num = atoi(optarg); |
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94 continue; |
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95 case 'o': |
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96 imgfile_offset = strtoul(optarg, 0, 0); |
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97 continue; |
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98 case 'O': |
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99 old_16bit_location = 1; |
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100 continue; |
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101 case 'r': |
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102 root_inode = strtoul(optarg, 0, 16); |
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103 continue; |
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104 case 'v': |
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105 verbose++; |
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106 continue; |
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107 default: |
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108 usage: fprintf(stderr, |
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109 "usage: %s [global-options] <imgfile> <org> <op> ...\n", |
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110 argv[0]); |
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111 exit(1); |
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112 } |
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113 if (argc - optind < 3) |
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114 goto usage; |
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115 imgfile = argv[optind]; |
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116 parse_org_arg(argv[optind+1]); |
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117 cmd = argv[optind+2]; |
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118 |
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119 for (tp = cmdtab; tp->cmd; tp++) |
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120 if (!strcmp(tp->cmd, cmd)) |
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121 break; |
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122 if (!tp->func) { |
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123 fprintf(stderr, |
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124 "%s: operation \"%s\" is unknown or unimplemented\n", |
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125 argv[0], cmd); |
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126 exit(1); |
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127 } |
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128 optind += 2; |
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129 return tp->func(argc - optind, argv + optind); |
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130 } |