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annotate ffstools/tiffs-rd/main.c @ 660:a0014ba30d71

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gsm-fw/cdg/makecdg.sh: added some comments
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 26 Sep 2014 00:34:44 +0000
parents 10afa4d39a7b
children 09b8b2327838
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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"
225
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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
225
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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:r: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 'r':
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97 root_inode = strtoul(optarg, 0, 16);
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98 continue;
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99 case 'v':
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100 verbose++;
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101 continue;
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102 default:
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103 usage: fprintf(stderr,
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104 "usage: %s [global-options] <imgfile> <org> <op> ...\n",
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105 argv[0]);
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106 exit(1);
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107 }
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108 if (argc - optind < 3)
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109 goto usage;
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110 imgfile = argv[optind];
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111 parse_org_arg(argv[optind+1]);
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112 cmd = argv[optind+2];
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113
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114 for (tp = cmdtab; tp->cmd; tp++)
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115 if (!strcmp(tp->cmd, cmd))
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116 break;
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117 if (!tp->func) {
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118 fprintf(stderr,
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119 "%s: operation \"%s\" is unknown or unimplemented\n",
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120 argv[0], cmd);
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121 exit(1);
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122 }
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123 optind += 2;
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124 return tp->func(argc - optind, argv + optind);
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125 }