FreeCalypso > hg > freecalypso-tools
annotate ffstools/tiffs-rd/main.c @ 676:b6b8307d195b
doc: new articles Binary-file-formats and Flash-programming
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 08 Mar 2020 22:15:57 +0000 |
parents | e7502631a0f9 |
children | d68275d47a32 |
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_fsinfo(); |
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60 extern int cmd_ls(); |
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61 extern int cmd_lsino(); |
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62 extern int cmd_xtr(); |
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63 |
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64 static struct cmdtab { |
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65 char *cmd; |
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66 int (*func)(); |
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67 } cmdtab[] = { |
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68 {"blkhdr", cmd_blkhdr}, |
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69 {"cat", cmd_cat}, |
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70 {"catino", cmd_catino}, |
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71 {"fsck", NULL}, |
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72 {"fsinfo", cmd_fsinfo}, |
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73 {"ls", cmd_ls}, |
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74 {"lsino", cmd_lsino}, |
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75 {"xtr", cmd_xtr}, |
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76 {NULL, NULL} |
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77 }; |
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78 |
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79 main(argc, argv) |
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80 char **argv; |
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81 { |
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82 extern int optind; |
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83 extern char *optarg; |
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84 int c; |
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85 char *cmd; |
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86 struct cmdtab *tp; |
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87 |
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88 while ((c = getopt(argc, argv, "+a:o:Or:v")) != EOF) |
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89 switch (c) { |
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90 case 'a': |
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91 index_blk_num = atoi(optarg); |
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92 continue; |
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93 case 'o': |
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94 imgfile_offset = strtoul(optarg, 0, 0); |
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95 continue; |
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96 case 'O': |
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97 old_16bit_location = 1; |
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98 continue; |
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99 case 'r': |
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100 root_inode = strtoul(optarg, 0, 16); |
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101 continue; |
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102 case 'v': |
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103 verbose++; |
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104 continue; |
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105 default: |
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106 usage: fprintf(stderr, |
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107 "usage: %s [global-options] <imgfile> <org> <op> ...\n", |
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108 argv[0]); |
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109 exit(1); |
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110 } |
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111 if (argc - optind < 3) |
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112 goto usage; |
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113 imgfile = argv[optind]; |
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114 parse_org_arg(argv[optind+1]); |
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115 cmd = argv[optind+2]; |
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116 |
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117 for (tp = cmdtab; tp->cmd; tp++) |
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118 if (!strcmp(tp->cmd, cmd)) |
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119 break; |
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120 if (!tp->func) { |
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121 fprintf(stderr, |
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122 "%s: operation \"%s\" is unknown or unimplemented\n", |
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123 argv[0], cmd); |
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124 exit(1); |
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125 } |
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126 optind += 2; |
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127 return tp->func(argc - optind, argv + optind); |
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128 } |