FreeCalypso > hg > freecalypso-tools

annotate ffstools/tiffs-rd/basics.c @ 1011:6d9b10633f10

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents e7502631a0f9
children
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0
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This C module implements the "basics" of TIFFS image analysis.
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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 <sys/stat.h>
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8 #include <sys/mman.h>
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9 #include <stdio.h>
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10 #include <stdlib.h>
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11 #include <unistd.h>
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12 #include <string.h>
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13 #include <strings.h>
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14 #include "types.h"
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15 #include "struct.h"
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16 #include "globals.h"
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17
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18 u8 tiffs_header[6] = {'F', 'f', 's', '#', 0x10, 0x02};
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19
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20 read_ffs_image()
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21 {
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22 int fd;
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23 struct stat st;
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24
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25 fd = open(imgfile, O_RDONLY);
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26 if (fd < 0) {
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Mychaela Falconia <falcon@freecalypso.org>
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27 perror(imgfile);
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28 exit(1);
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29 }
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Mychaela Falconia <falcon@freecalypso.org>
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30 fstat(fd, &st);
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31 if (!S_ISREG(st.st_mode)) {
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32 fprintf(stderr, "error: %s is not a regular file\n", imgfile);
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33 exit(1);
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34 }
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35 if (st.st_size < imgfile_offset) {
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36 fprintf(stderr,
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37 "error: offset given with -o exceeds the size of the file\n");
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38 exit(1);
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39 }
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Mychaela Falconia <falcon@freecalypso.org>
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40 if (st.st_size - imgfile_offset < total_ffs_size) {
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41 fprintf(stderr,
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42 "error: %s is shorter than FFS size of 0x%lx bytes\n",
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43 imgfile, (u_long)total_ffs_size);
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44 exit(1);
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45 }
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46 image = mmap(NULL, total_ffs_size, PROT_READ, MAP_PRIVATE, fd,
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47 imgfile_offset);
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48 if (image == MAP_FAILED) {
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49 perror("mmap");
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50 exit(1);
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51 }
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52 close(fd);
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53 }
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54
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55 cmd_blkhdr()
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56 {
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57 int blk;
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58 u8 *blkhdr;
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59
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60 read_ffs_image();
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61 for (blk = 0; blk < total_blocks; blk++) {
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62 printf("Block %3d: ", blk);
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63 blkhdr = image + blk * eraseblk_size;
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64 if (bcmp(blkhdr, tiffs_header, sizeof tiffs_header)) {
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65 printf("No TIFFS header\n");
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66 continue;
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67 }
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68 printf("age %02X%02X, type/status %02X\n",
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69 blkhdr[7], blkhdr[6], blkhdr[8]);
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70 }
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71 exit(0);
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72 }
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73
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74 find_inode_block()
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75 {
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76 int i, abcnt;
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77 u8 *ptr;
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78
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79 if (index_blk_num >= 0) {
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80 if (index_blk_num >= total_blocks) {
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81 fprintf(stderr,
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82 "invalid block # given with the -a option\n");
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83 exit(1);
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84 }
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85 ptr = image + index_blk_num * eraseblk_size;
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86 if (bcmp(ptr, tiffs_header, sizeof tiffs_header)) {
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87 fprintf(stderr,
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88 "error: block specified with -a has no TIFFS header\n");
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89 exit(1);
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90 }
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91 if (ptr[8] != 0xAB) {
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92 fprintf(stderr,
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93 "error: block specified with -a is not an AB block\n");
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94 exit(1);
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95 }
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96 inode_block = ptr;
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97 return(0);
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98 }
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99 abcnt = 0;
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100 for (ptr = image, i = 0; i < total_blocks; i++, ptr += eraseblk_size) {
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101 if (bcmp(ptr, tiffs_header, sizeof tiffs_header)) {
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Mychaela Falconia <falcon@freecalypso.org>
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102 fprintf(stderr,
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103 "warning: no TIFFS signature in erase block #%d (offset %x)\n",
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Mychaela Falconia <falcon@freecalypso.org>
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104 i, ptr - image);
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Mychaela Falconia <falcon@freecalypso.org>
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105 continue;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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107 switch (ptr[8]) {
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Mychaela Falconia <falcon@freecalypso.org>
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108 case 0xAB:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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109 if (verbose)
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Mychaela Falconia <falcon@freecalypso.org>
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110 fprintf(stderr,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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111 "Found AB index in erase block #%d (offset %x)\n",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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112 i, ptr - image);
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Mychaela Falconia <falcon@freecalypso.org>
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113 index_blk_num = i;
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parents:
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114 inode_block = ptr;
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Mychaela Falconia <falcon@freecalypso.org>
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115 abcnt++;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 continue;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 case 0xBD:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 case 0xBF:
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 continue;
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 fprintf(stderr,
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 "warning: unexpected block type/status %02X at offset %x\n",
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 ptr[8], ptr - image);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 if (!inode_block) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 fprintf(stderr,
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 "error: could not find an active inode block in %s\n",
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 imgfile);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 exit(1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 if (abcnt > 1) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 fprintf(stderr,
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 "error: found more than one AB block; use -a\n");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 exit(1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 return(0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 cmd_fsinfo()
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 read_ffs_image();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 find_inode_block();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 printf("Active inode block (AB) is block #%d\n", index_blk_num);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 alloc_inode_table();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 find_root_inode();
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 printf("Root inode is #%x\n", root_inode);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 if (validate_obj_name(root_inode, 1)) {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 printf("Root inode (format) name: %s\n",
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 inode_info[root_inode]->dataptr);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 exit(0);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 } else {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 printf("No valid name found in the root inode!\n");
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 exit(1);
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 }
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 }