FreeCalypso > hg > freecalypso-sw
annotate ffstools/tiffs-rd/xtr.c @ 493:4775ba17ba05
osx.c: int_osx_send_sig() done
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Tue, 01 Jul 2014 06:51:22 +0000 |
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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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103 traverse_visible_tree(xtr_tree_callback); |
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104 exit(0); |
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105 } |