FreeCalypso > hg > freecalypso-tools

annotate ffstools/tiffs-rd/xtr.c @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents e7502631a0f9
children
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0
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1 /*
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2 * This C module implements the xtr 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 <sys/file.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 <unistd.h>
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12 #include "types.h"
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13 #include "struct.h"
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14 #include "globals.h"
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15 #include "pathname.h"
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16
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17 static void
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18 dump_head_chunk(fd, headino)
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19 {
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20 struct inode_info *inf = inode_info[headino];
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21 struct chunkinfo chi;
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22
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23 if (size_head_chunk(inf, &chi))
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24 write(fd, chi.start, chi.len);
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25 }
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26
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27 static void
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28 dump_extra_chunk(inf, opaque)
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29 struct inode_info *inf;
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30 u_long opaque;
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31 {
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32 int fd = (int)opaque;
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33 struct chunkinfo chi;
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34
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35 size_extra_chunk(inf, &chi);
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36 write(fd, chi.start, chi.len);
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37 }
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38
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39 extract_file(relpath, headino)
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40 char *relpath;
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41 {
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42 int fd;
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43
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44 fd = open(relpath, O_WRONLY|O_CREAT|O_TRUNC, 0666);
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45 if (fd < 0) {
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46 perror(relpath);
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47 exit(1);
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48 }
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49 dump_head_chunk(fd, headino);
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50 iterate_seg_file(headino, dump_extra_chunk, (u_long)fd, 0, 0);
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51 close(fd);
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52 }
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53
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54 void
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55 xtr_tree_callback(pathname, ino, depth)
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56 char *pathname;
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57 {
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58 struct inode_info *inf = inode_info[ino];
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59
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60 switch (inf->type) {
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61 case 0xE1:
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62 case 0xF1:
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63 /* skip /.journal; those who need it can cat it */
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64 if (strcmp(pathname, "/.journal"))
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65 extract_file(pathname + 1, ino);
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66 return;
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67 case 0xE2:
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68 case 0xF2:
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69 if (mkdir(pathname + 1, 0777) < 0) {
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70 perror(pathname + 1);
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71 exit(1);
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72 }
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73 return;
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74 case 0xE3:
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75 case 0xF3:
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76 fprintf(stderr,
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77 "symlink at %s ignored: symlink extraction not implemented yet\n",
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78 pathname);
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79 return;
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80 default:
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81 fprintf(stderr,
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82 "BUG: bad inode byte %02X reached xtr_tree_callback()\n",
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83 inf->type);
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84 exit(1);
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85 }
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86 }
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87
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88 cmd_xtr(argc, argv)
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89 char **argv;
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90 {
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91 if (argc != 2) {
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92 fprintf(stderr, "usage: xtr dest-dir\n");
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93 exit(1);
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94 }
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95 read_ffs_image();
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96 find_inode_block();
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97 alloc_inode_table();
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98 find_root_inode();
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99 if (chdir(argv[1]) < 0) {
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100 perror(argv[1]);
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101 exit(1);
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102 }
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Mychaela Falconia <falcon@freecalypso.org>
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103 traverse_visible_tree(xtr_tree_callback);
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104 exit(0);
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105 }