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comparison ffstools/tiffs-rd/inode.c @ 232:73372cfdaf7f

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tiffs IVA: object name validation implemented
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 26 Jan 2014 08:42:59 +0000
parents 5ceacdbd4490
children ae9ff2d1e3da
comparison
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231:5ceacdbd4490 232:73372cfdaf7f
2 * This C module implements the reading and decoding of inode information. 2 * This C module implements the reading and decoding of inode information.
3 */ 3 */
4 4
5 #include <sys/types.h> 5 #include <sys/types.h>
6 #include <endian.h> 6 #include <endian.h>
7 #include <ctype.h>
7 #include <stdio.h> 8 #include <stdio.h>
8 #include <stdlib.h> 9 #include <stdlib.h>
9 #include <string.h> 10 #include <string.h>
10 #include <strings.h> 11 #include <strings.h>
11 #include "types.h" 12 #include "types.h"
12 #include "struct.h" 13 #include "struct.h"
13 #include "globals.h" 14 #include "globals.h"
15 #include "pathname.h"
14 16
15 u8 blank_flash_line[16] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 17 u8 blank_flash_line[16] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
16 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 18 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
17 19
18 alloc_inode_table() 20 alloc_inode_table()
157 return(0); 159 return(0);
158 } 160 }
159 fprintf(stderr, "error: no root inode found; try -r\n"); 161 fprintf(stderr, "error: no root inode found; try -r\n");
160 exit(1); 162 exit(1);
161 } 163 }
164
165 validate_obj_name(ino, root_special)
166 {
167 struct inode_info *inf = inode_info[ino];
168 u8 *p, *endp;
169 int c;
170
171 if (!inf->len)
172 return(0);
173 p = inf->dataptr;
174 endp = p + inf->len;
175 for (; ; p++) {
176 if (p >= endp)
177 return(0);
178 c = *p;
179 if (!c)
180 break;
181 if (c < ' ' || c > '~')
182 return(0);
183 if (root_special || isalnum(c))
184 continue;
185 switch (c) {
186 case '.':
187 case ',':
188 case '_':
189 case '-':
190 case '+':
191 case '%':
192 case '$':
193 case '#':
194 continue;
195 default:
196 return(0);
197 }
198 }
199 c = p - inf->dataptr;
200 if (c < 1 || c > MAX_FN_COMPONENT && !root_special)
201 return(0);
202 inf->byte_after_name = p + 1;
203 return(1);
204 }