FreeCalypso > hg > freecalypso-reveng

annotate mpffs/common.c @ 191:0c631396b8ce

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started grokdsn utility, parses header successfully
author Michael Spacefalcon <falcon@ivan.Harhan.ORG>
date Wed, 07 Jan 2015 06:55:33 +0000
parents 9bc7f0e03fa8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * This module contains the code that will be common between mpffs-cat,
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3 * mpffs-ls and mpffs-xtr.
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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 <sys/file.h>
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8 #include <sys/stat.h>
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9 #include <endian.h>
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10 #include <ctype.h>
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11 #include <stdio.h>
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12 #include <string.h>
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13 #include <strings.h>
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14 #include <stdlib.h>
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15 #include <unistd.h>
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16 #include "types.h"
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17 #include "struct.h"
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18
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19 u8 mpffs_header[6] = {'F', 'f', 's', '#', 0x10, 0x02};
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20 u8 blank_flash_line[16] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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21 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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22
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23 char *imgfile;
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24 u32 eraseblk_size;
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25 int total_blocks;
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26 u32 total_ffs_size;
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27 u8 *image, *indexblk;
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28 int index_blk_num = -1, root_node_no;
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29 struct objinfo root;
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30 int verbose;
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31
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32 /*
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33 * The following function is used to verify that the specified or computed
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34 * flash erase block size is a power of 2.
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35 */
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36 count_ones(word)
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37 u32 word;
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38 {
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39 int count;
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40
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41 for (count = 0; word; word >>= 1)
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42 count += word & 1;
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43 return count;
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44 }
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45
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46 eraseblk_size_reasonable()
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47 {
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48 if (count_ones(eraseblk_size) != 1 || eraseblk_size < 16384 ||
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49 eraseblk_size > 0x100000) {
29
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50 fprintf(stderr, "0x%lx is an unreasonable erase block size\n",
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51 (u_long) eraseblk_size);
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52 exit(1);
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53 }
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54 }
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55
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56 parse_cmdline_options(argc, argv)
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57 char **argv;
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58 {
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59 extern char *optarg;
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60 int c;
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61
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62 while ((c = getopt(argc, argv, "a:e:mn:pr:v")) != EOF)
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63 switch (c) {
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64 case 'a':
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65 index_blk_num = atoi(optarg);
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66 continue;
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67 case 'e':
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68 eraseblk_size = strtoul(optarg, 0, 0);
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69 eraseblk_size_reasonable();
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70 continue;
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71 case 'm': /* "moko" */
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72 eraseblk_size = 0x10000;
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73 total_blocks = 7;
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74 continue;
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75 case 'n':
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76 total_blocks = atoi(optarg);
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77 if (total_blocks < 1) {
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78 fprintf(stderr, "invalid -n value\n");
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79 exit(1);
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80 }
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81 continue;
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82 case 'p': /* Pirelli */
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83 eraseblk_size = 0x40000;
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84 total_blocks = 18;
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85 continue;
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86 case 'r':
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87 root_node_no = atoi(optarg);
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88 continue;
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89 case 'v':
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90 verbose++;
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91 continue;
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92 default:
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93 usage();
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94 exit(1);
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95 }
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96
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97 return(0);
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98 }
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99
29
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100 read_img_file()
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101 {
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102 int fd;
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103 struct stat st;
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104
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105 fd = open(imgfile, O_RDONLY);
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106 if (fd < 0) {
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107 perror(imgfile);
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108 exit(1);
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109 }
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110 fstat(fd, &st);
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111 if (!S_ISREG(st.st_mode)) {
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112 fprintf(stderr, "%s is not a regular file\n", imgfile);
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113 exit(1);
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114 }
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115 if (!eraseblk_size && !total_blocks) {
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116 switch (st.st_size) {
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117 case 0x70000:
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118 /* assume Closedmoko */
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119 eraseblk_size = 0x10000;
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120 total_blocks = 7;
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121 break;
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122 case 0x480000:
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123 /* assume Pirelli */
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124 eraseblk_size = 0x40000;
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125 total_blocks = 18;
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126 break;
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127 default:
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128 noauto: fprintf(stderr,
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129 "cannot intuit the flash parameters of %s: use -e and -n options\n",
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130 imgfile);
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131 exit(1);
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132 }
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133 } else if (!total_blocks) {
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134 total_blocks = st.st_size / eraseblk_size;
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diff changeset
135 if (!total_blocks || total_blocks * eraseblk_size != st.st_size)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
136 goto noauto;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
137 } else if (!eraseblk_size) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
138 if (total_blocks * 0x10000 == st.st_size)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
139 eraseblk_size = 0x10000;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
140 else if (total_blocks * 0x40000 == st.st_size)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
141 eraseblk_size = 0x40000;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
142 else
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
143 goto noauto;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
144 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
145 total_ffs_size = eraseblk_size * total_blocks;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
146 if (st.st_size < total_ffs_size) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
147 fprintf(stderr, "%s has fewer than 0x%x bytes\n", imgfile,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
148 total_ffs_size);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
149 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
150 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
151 image = malloc(total_ffs_size);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
152 if (!image) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
153 perror("malloc");
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
154 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
155 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
156 read(fd, image, total_ffs_size);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
157 close(fd);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
158 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
159
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
160 find_index_block()
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
161 {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
162 int i, abcnt;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
163 u8 *ptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
164
30
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
165 if (index_blk_num >= 0) {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
166 if (index_blk_num >= total_blocks) {
29
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
167 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
168 "invalid block # given with the -a option\n");
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
169 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
170 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
171 ptr = image + index_blk_num * eraseblk_size;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
172 if (bcmp(ptr, mpffs_header, 6) || ptr[8] != 0xAB) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
173 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
174 "no MPFFS index found at the specified block #%d\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
175 index_blk_num);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
176 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
177 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
178 indexblk = ptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
179 return(0);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
180 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
181 abcnt = 0;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
182 for (ptr = image, i = 0; i < total_blocks; i++, ptr += eraseblk_size) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
183 if (bcmp(ptr, mpffs_header, 6)) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
184 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
185 "warning: no MPFFS signature in erase block #%d (offset %x)\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
186 i, ptr - image);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
187 continue;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
188 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
189 switch (ptr[8]) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
190 case 0xAB:
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
191 if (verbose)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
192 printf(
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
193 "Found AB index in erase block #%d (offset %x)\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
194 i, ptr - image);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
195 index_blk_num = i;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
196 indexblk = ptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
197 abcnt++;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
198 continue;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
199 case 0xBD:
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
200 case 0xBF:
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
201 continue;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
202 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
203 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
204 "warning: non-understood block type %02X at offset %x\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
205 ptr[8], ptr - image);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
206 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
207 if (!indexblk) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
208 fprintf(stderr, "could not find an MPFFS index block in %s\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
209 imgfile);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
210 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
211 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
212 if (abcnt > 1) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
213 fprintf(stderr, "found more than one AB block; use -a\n");
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
214 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
215 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
216 return(0);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
217 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
218
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
219 get_index_entry(oi)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
220 struct objinfo *oi;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
221 {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
222 struct mpffs_index *le;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
223
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
224 if (oi->entryno >= (eraseblk_size >> 4)) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
225 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
226 "error: index block pointer %x past the erase block size!\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
227 oi->entryno);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
228 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
229 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
230 le = (struct mpffs_index *) indexblk + oi->entryno;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
231 oi->idxrec = le;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
232 oi->len = le16toh(le->len);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
233 oi->type = le->type;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
234 oi->descend = le16toh(le->descend);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
235 oi->sibling = le16toh(le->sibling);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
236 return(0);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
237 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
238
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
239 validate_chunk(oi)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
240 struct objinfo *oi;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
241 {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
242 u32 dptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
243
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
244 if (oi->len & 0xF || !oi->len) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
245 fprintf(stderr, "index entry #%x: invalid chunk length\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
246 oi->entryno);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
247 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
248 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
249 dptr = le32toh(oi->idxrec->dataptr);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
250 if (dptr > 0x0FFFFFFF) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
251 invdptr: fprintf(stderr, "index entry #%x: invalid data pointer\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
252 oi->entryno);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
253 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
254 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
255 dptr <<= 4;
30
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
256 if (dptr > total_ffs_size - oi->len)
29
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
257 goto invdptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
258 oi->offset = dptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
259 oi->dataptr = image + dptr;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
260 return(0);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
261 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
262
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
263 validate_obj_name(oi)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
264 struct objinfo *oi;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
265 {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
266 u8 *cp;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
267 int cnt;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
268
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
269 for (cp = oi->dataptr, cnt = 0; ; cp++, cnt++) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
270 if (cnt >= oi->len) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
271 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
272 "object at index %x: name expected at %x: length overrun\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
273 oi->entryno, oi->offset);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
274 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
275 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
276 if (!*cp)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
277 break;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
278 if (*cp < '!' || *cp > '~') {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
279 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
280 "object at index %x: name expected at %x: bad character\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
281 oi->entryno, oi->offset);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
282 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
283 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
284 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
285 if (!cnt) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
286 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
287 "object at index %x: name expected at %x: null string\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
288 oi->entryno, oi->offset);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
289 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
290 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
291 return(0);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
292 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
293
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
294 u8 *
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
295 find_end_of_chunk(ch)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
296 struct objinfo *ch;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
297 {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
298 u8 *p;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
299 int i;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
300
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
301 p = ch->dataptr + ch->len;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
302 for (i = 1; i <= 16; i++) {
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
303 if (!p[-i])
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
304 return(p - i);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
305 if (p[-1] != 0xFF)
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
306 break;
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
307 }
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
308 fprintf(stderr,
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
309 "chunk starting at %x (index entry %x): no valid termination found\n",
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
310 ch->offset, ch->entryno);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
311 exit(1);
e96d6862cec0 mpffs-rdutils code started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
312 }
30
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
313
31
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
314 size_head_chunk(ch, chi)
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
315 struct objinfo *ch;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
316 struct chunkinfo *chi;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
317 {
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
318 chi->start = (u8 *) index((char *)ch->dataptr, '\0') + 1;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
319 chi->end = find_end_of_chunk(ch);
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
320 if (chi->start >= chi->end) {
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
321 chi->len = 0;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
322 return(0);
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
323 } else {
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
324 chi->len = chi->end - chi->start;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
325 return(1);
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
326 }
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
327 }
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
328
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
329 size_extra_chunk(ch, chi)
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
330 struct objinfo *ch;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
331 struct chunkinfo *chi;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
332 {
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
333 chi->start = ch->dataptr;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
334 chi->end = find_end_of_chunk(ch);
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
335 chi->len = chi->end - chi->start;
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
336 }
3cca8070ef0f mpffs-ls reports file sizes
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 30
diff changeset
337
39
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
338 iterate_extra_chunks(first_extra_chunk, callback, callback_data)
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
339 void (*callback)();
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
340 u_long callback_data;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
341 {
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
342 int ent;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
343 struct objinfo obj;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
344
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
345 for (ent = first_extra_chunk; ent != 0xFFFF; ent = obj.descend) {
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
346 loop: obj.entryno = ent;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
347 get_index_entry(&obj);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
348 switch (obj.type) {
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
349 case 0xF4:
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
350 validate_chunk(&obj);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
351 callback(&obj, callback_data);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
352 continue;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
353 case 0x00:
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
354 if (obj.sibling == 0xFFFF) {
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
355 fprintf(stderr,
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
356 "file continuation object at index %x: marked deleted, but no sibling\n",
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
357 ent);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
358 exit(1);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
359 }
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
360 ent = obj.sibling;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
361 goto loop;
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
362 default:
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
363 fprintf(stderr,
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
364 "file continuation object at index %x: unexpected type %02X\n",
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
365 ent, obj.type);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
366 exit(1);
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
367 }
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
368 }
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
369 }
9bc7f0e03fa8 iterate_extra_chunks() function written, mpffs-ls converted to use it
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 31
diff changeset
370
30
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
371 find_root_node()
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
372 {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
373 struct objinfo obj;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
374 u16 lim;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
375
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
376 lim = (eraseblk_size >> 4) - 1;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
377 if (root_node_no) {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
378 if (root_node_no < 1 || root_node_no > lim) {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
379 fprintf(stderr,
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
380 "root node # given with -r is invalid\n");
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
381 exit(1);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
382 }
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
383 return(1);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
384 }
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
385 for (obj.entryno = 1; obj.entryno <= lim; obj.entryno++) {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
386 get_index_entry(&obj);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
387 if (!bcmp(obj.idxrec, blank_flash_line, 16))
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
388 break;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
389 if (obj.type != 0xF2)
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
390 continue;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
391 validate_chunk(&obj);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
392 validate_obj_name(&obj);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
393 if (*obj.dataptr != '/')
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
394 continue;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
395 root_node_no = obj.entryno;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
396 if (verbose)
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
397 printf("Found root node at index #%x\n", root_node_no);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
398 return(0);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
399 }
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
400 fprintf(stderr, "error: no root node found (try -r)\n");
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
401 exit(1);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
402 }
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
403
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
404 validate_root_node()
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
405 {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
406 root.entryno = root_node_no;
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
407 get_index_entry(&root);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
408 validate_chunk(&root);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
409 validate_obj_name(&root);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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410 if (verbose)
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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411 printf("Root node name: %s\n", (char *)root.dataptr);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
diff changeset
412 if (root.type != 0xF2) {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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413 fprintf(stderr,
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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414 "error: index entry #%x (expected root dir) is not a directory\n",
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
diff changeset
415 root_node_no);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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416 exit(1);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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417 }
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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418 if (root.sibling != 0xFFFF)
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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419 fprintf(stderr,
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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420 "warning: root entry has a non-nil sibling pointer\n");
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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421 return(0);
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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422 }
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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423
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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parents: 29
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424 preliminaries()
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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425 {
9c3c5a572b57 mpffs-ls works with the length code stubbed out
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426 read_img_file();
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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427 find_index_block();
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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428 find_root_node();
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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429 validate_root_node();
9c3c5a572b57 mpffs-ls works with the length code stubbed out
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 29
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430 }