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annotate ffstools/tiffs-rd/cat.c @ 1034:405b5469abc4 default tip

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author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 12 Jun 2016 19:06:34 +0000
parents c95efd27fb2e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
240
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 /*
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2 * This C module implements the cat and catino commands.
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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 <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <unistd.h>
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11 #include "types.h"
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12 #include "struct.h"
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13 #include "globals.h"
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14 #include "pathname.h"
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15
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16 int cat_mode;
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17
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18 static u8 hex_buf[16];
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19 static int hex_fill;
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20 static u32 hex_offset;
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21
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22 cat_hex_flush()
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23 {
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24 int i, c;
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25
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26 printf("%08X: ", hex_offset);
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27 for (i = 0; i < 16; i++) {
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28 if (i < hex_fill)
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29 printf("%02X ", hex_buf[i]);
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30 else
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31 fputs(" ", stdout);
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32 if (i == 7 || i == 15)
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33 putchar(' ');
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34 }
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35 for (i = 0; i < hex_fill; i++) {
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36 c = hex_buf[i];
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37 if (c < ' ' || c > '~')
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38 c = '.';
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39 putchar(c);
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40 }
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41 putchar('\n');
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42 }
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43
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44 cat_hex_byte(inb)
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45 {
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46 hex_buf[hex_fill++] = inb;
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47 if (hex_fill >= 16) {
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48 cat_hex_flush();
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49 hex_offset += hex_fill;
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50 hex_fill = 0;
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51 }
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52 }
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53
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54 void
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55 cat_chunk(ch)
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56 struct chunkinfo *ch;
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57 {
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58 u8 *p;
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59 int c;
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60
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61 if (!ch->len)
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62 return;
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63 switch (cat_mode) {
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64 case 0:
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65 write(1, ch->start, ch->len);
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66 return;
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67 case 1:
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68 for (p = ch->start; p < ch->end; p++) {
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69 c = *p;
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70 if (c >= ' ' && c <= '~' || c == '\n')
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71 putchar(c);
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72 else {
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73 if (c & 0x80) {
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74 putchar('M');
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75 putchar('-');
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76 c &= 0x7F;
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77 }
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78 putchar('^');
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79 if (c == 0x7F)
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80 putchar('?');
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81 else
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82 putchar(c + '@');
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83 }
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84 }
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85 return;
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86 case 2:
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87 for (p = ch->start; p < ch->end; p++)
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88 cat_hex_byte(*p);
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89 return;
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90 }
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91 }
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92
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93 void
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94 cat_finish()
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95 {
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96 switch (cat_mode) {
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97 case 1:
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98 putchar('\n');
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99 return;
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100 case 2:
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101 if (hex_fill)
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102 cat_hex_flush();
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103 return;
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104 }
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105 }
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106
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107 static void
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108 segment_cat_callback(inf, opaque)
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109 struct inode_info *inf;
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110 u_long opaque;
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111 {
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112 struct chunkinfo chi;
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113
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114 size_extra_chunk(inf, &chi);
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115 cat_chunk(&chi);
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116 }
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117
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118 cmd_cat(argc, argv)
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119 char **argv;
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120 {
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121 extern int optind;
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122 int c, headino;
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123 struct inode_info *inf;
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124 struct chunkinfo chi;
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125
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126 optind = 0;
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127 while ((c = getopt(argc, argv, "hv")) != EOF)
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128 switch (c) {
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129 case 'h':
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130 cat_mode = 2;
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131 continue;
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132 case 'v':
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133 cat_mode = 1;
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134 continue;
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135 default:
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136 usage: fprintf(stderr, "usage: cat [-v|-h] pathname\n");
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137 exit(1);
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138 }
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139 if (argc != optind + 1)
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140 goto usage;
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141
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142 read_ffs_image();
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143 find_inode_block();
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144 alloc_inode_table();
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145 find_root_inode();
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146
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147 headino = find_pathname(argv[optind]);
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148 inf = inode_info[headino];
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149 switch (inf->type) {
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150 case 0xE1:
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151 case 0xF1:
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152 break;
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153 case 0xF2:
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parents:
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154 fprintf(stderr, "error: the requested object is a directory\n");
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
155 exit(1);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
156 case 0xF3:
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
157 fprintf(stderr,
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
158 "error: the requested object is a symlink; use readlink instead of cat\n");
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
159 exit(1);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
160 default:
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
161 fprintf(stderr, "error: unexpected object type %02X\n",
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
162 inf->type);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
163 exit(1);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
164 }
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
165 size_head_chunk(inf, &chi);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
166 cat_chunk(&chi);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
167 iterate_seg_file(headino, segment_cat_callback, 0L, 0, 0);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
168 cat_finish();
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
169 exit(0);
acedd4c88d2e tiffs cat command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
170 }
241
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
171
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
172 cmd_catino(argc, argv)
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
173 char **argv;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
174 {
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
175 extern int optind;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
176 int c, headino;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
177 struct inode_info *inf;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
178 struct chunkinfo chi;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
179
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
180 optind = 0;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
181 while ((c = getopt(argc, argv, "hv")) != EOF)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
182 switch (c) {
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
183 case 'h':
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
184 cat_mode = 2;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
185 continue;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
186 case 'v':
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
187 cat_mode = 1;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
188 continue;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
189 default:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
190 usage: fprintf(stderr, "usage: catino [-v|-h] ino\n");
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
191 exit(1);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
192 }
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
193 if (argc != optind + 1)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
194 goto usage;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
195 headino = strtoul(argv[optind], 0, 16);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
196
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
197 read_ffs_image();
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
198 find_inode_block();
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
199 alloc_inode_table();
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
200 if (!validate_inode(headino)) {
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
201 fprintf(stderr, "catino: specified inode number is invalid\n");
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
202 exit(1);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
203 }
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
204 inf = inode_info[headino];
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
205 switch (inf->type) {
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
206 case 0x00:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
207 case 0xE1:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
208 case 0xF1:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
209 case 0xF3:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
210 break;
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
211 case 0xF2:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
212 fprintf(stderr, "error: the requested object is a directory\n");
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
213 exit(1);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
214 default:
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
215 fprintf(stderr, "error: unexpected object type %02X\n",
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
216 inf->type);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
217 exit(1);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
218 }
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
219 if (!inf->len) {
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
220 fprintf(stderr, "error: requested inode has been reclaimed\n");
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
221 exit(1);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
222 }
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
223 if (!validate_obj_name(headino, 0)) {
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
224 fprintf(stderr,
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
225 "error: no valid name at the beginning of the requested seghead chunk\n");
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
226 exit(1);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
227 }
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
228 size_head_chunk(inf, &chi);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
229 cat_chunk(&chi);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
230 iterate_seg_file(headino, segment_cat_callback, 0L, !inf->type, 0);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
231 cat_finish();
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
232 exit(0);
c95efd27fb2e tiffs catino implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 240
diff changeset
233 }