1 | /*************************************************************************** |
2 | * _ _ ____ _ |
3 | * Project ___| | | | _ \| | |
4 | * / __| | | | |_) | | |
5 | * | (__| |_| | _ <| |___ |
6 | * \___|\___/|_| \_\_____| |
7 | * |
8 | * Copyright (C) 1998 - 2022, Daniel Stenberg, <[email protected]>, et al. |
9 | * |
10 | * This software is licensed as described in the file COPYING, which |
11 | * you should have received as part of this distribution. The terms |
12 | * are also available at https://curl.se/docs/copyright.html. |
13 | * |
14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
15 | * copies of the Software, and permit persons to whom the Software is |
16 | * furnished to do so, under the terms of the COPYING file. |
17 | * |
18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
19 | * KIND, either express or implied. |
20 | * |
21 | * SPDX-License-Identifier: curl |
22 | * |
23 | ***************************************************************************/ |
24 | |
25 | /** |
26 | * Now implemented: |
27 | * |
28 | * 1) Unix version 1 |
29 | * drwxr-xr-x 1 user01 ftp 512 Jan 29 23:32 prog |
30 | * 2) Unix version 2 |
31 | * drwxr-xr-x 1 user01 ftp 512 Jan 29 1997 prog |
32 | * 3) Unix version 3 |
33 | * drwxr-xr-x 1 1 1 512 Jan 29 23:32 prog |
34 | * 4) Unix symlink |
35 | * lrwxr-xr-x 1 user01 ftp 512 Jan 29 23:32 prog -> prog2000 |
36 | * 5) DOS style |
37 | * 01-29-97 11:32PM <DIR> prog |
38 | */ |
39 | |
40 | #include "curl_setup.h" |
41 | |
42 | #ifndef CURL_DISABLE_FTP |
43 | |
44 | #include <curl/curl.h> |
45 | |
46 | #include "urldata.h" |
47 | #include "fileinfo.h" |
48 | #include "llist.h" |
49 | #include "strtoofft.h" |
50 | #include "ftp.h" |
51 | #include "ftplistparser.h" |
52 | #include "curl_fnmatch.h" |
53 | #include "curl_memory.h" |
54 | #include "multiif.h" |
55 | /* The last #include file should be: */ |
56 | #include "memdebug.h" |
57 | |
58 | /* allocs buffer which will contain one line of LIST command response */ |
59 | #define FTP_BUFFER_ALLOCSIZE 160 |
60 | |
61 | typedef enum { |
62 | PL_UNIX_TOTALSIZE = 0, |
63 | PL_UNIX_FILETYPE, |
64 | PL_UNIX_PERMISSION, |
65 | PL_UNIX_HLINKS, |
66 | PL_UNIX_USER, |
67 | PL_UNIX_GROUP, |
68 | PL_UNIX_SIZE, |
69 | PL_UNIX_TIME, |
70 | PL_UNIX_FILENAME, |
71 | PL_UNIX_SYMLINK |
72 | } pl_unix_mainstate; |
73 | |
74 | typedef union { |
75 | enum { |
76 | PL_UNIX_TOTALSIZE_INIT = 0, |
77 | PL_UNIX_TOTALSIZE_READING |
78 | } total_dirsize; |
79 | |
80 | enum { |
81 | PL_UNIX_HLINKS_PRESPACE = 0, |
82 | PL_UNIX_HLINKS_NUMBER |
83 | } hlinks; |
84 | |
85 | enum { |
86 | PL_UNIX_USER_PRESPACE = 0, |
87 | PL_UNIX_USER_PARSING |
88 | } user; |
89 | |
90 | enum { |
91 | PL_UNIX_GROUP_PRESPACE = 0, |
92 | PL_UNIX_GROUP_NAME |
93 | } group; |
94 | |
95 | enum { |
96 | PL_UNIX_SIZE_PRESPACE = 0, |
97 | PL_UNIX_SIZE_NUMBER |
98 | } size; |
99 | |
100 | enum { |
101 | PL_UNIX_TIME_PREPART1 = 0, |
102 | PL_UNIX_TIME_PART1, |
103 | PL_UNIX_TIME_PREPART2, |
104 | PL_UNIX_TIME_PART2, |
105 | PL_UNIX_TIME_PREPART3, |
106 | PL_UNIX_TIME_PART3 |
107 | } time; |
108 | |
109 | enum { |
110 | PL_UNIX_FILENAME_PRESPACE = 0, |
111 | PL_UNIX_FILENAME_NAME, |
112 | PL_UNIX_FILENAME_WINDOWSEOL |
113 | } filename; |
114 | |
115 | enum { |
116 | PL_UNIX_SYMLINK_PRESPACE = 0, |
117 | PL_UNIX_SYMLINK_NAME, |
118 | PL_UNIX_SYMLINK_PRETARGET1, |
119 | PL_UNIX_SYMLINK_PRETARGET2, |
120 | PL_UNIX_SYMLINK_PRETARGET3, |
121 | PL_UNIX_SYMLINK_PRETARGET4, |
122 | PL_UNIX_SYMLINK_TARGET, |
123 | PL_UNIX_SYMLINK_WINDOWSEOL |
124 | } symlink; |
125 | } pl_unix_substate; |
126 | |
127 | typedef enum { |
128 | PL_WINNT_DATE = 0, |
129 | PL_WINNT_TIME, |
130 | PL_WINNT_DIRORSIZE, |
131 | PL_WINNT_FILENAME |
132 | } pl_winNT_mainstate; |
133 | |
134 | typedef union { |
135 | enum { |
136 | PL_WINNT_TIME_PRESPACE = 0, |
137 | PL_WINNT_TIME_TIME |
138 | } time; |
139 | enum { |
140 | PL_WINNT_DIRORSIZE_PRESPACE = 0, |
141 | PL_WINNT_DIRORSIZE_CONTENT |
142 | } dirorsize; |
143 | enum { |
144 | PL_WINNT_FILENAME_PRESPACE = 0, |
145 | PL_WINNT_FILENAME_CONTENT, |
146 | PL_WINNT_FILENAME_WINEOL |
147 | } filename; |
148 | } pl_winNT_substate; |
149 | |
150 | /* This struct is used in wildcard downloading - for parsing LIST response */ |
151 | struct ftp_parselist_data { |
152 | enum { |
153 | OS_TYPE_UNKNOWN = 0, |
154 | OS_TYPE_UNIX, |
155 | OS_TYPE_WIN_NT |
156 | } os_type; |
157 | |
158 | union { |
159 | struct { |
160 | pl_unix_mainstate main; |
161 | pl_unix_substate sub; |
162 | } UNIX; |
163 | |
164 | struct { |
165 | pl_winNT_mainstate main; |
166 | pl_winNT_substate sub; |
167 | } NT; |
168 | } state; |
169 | |
170 | CURLcode error; |
171 | struct fileinfo *file_data; |
172 | unsigned int item_length; |
173 | size_t item_offset; |
174 | struct { |
175 | size_t filename; |
176 | size_t user; |
177 | size_t group; |
178 | size_t time; |
179 | size_t perm; |
180 | size_t symlink_target; |
181 | } offsets; |
182 | }; |
183 | |
184 | struct ftp_parselist_data *Curl_ftp_parselist_data_alloc(void) |
185 | { |
186 | return calloc(1, sizeof(struct ftp_parselist_data)); |
187 | } |
188 | |
189 | |
190 | void Curl_ftp_parselist_data_free(struct ftp_parselist_data **parserp) |
191 | { |
192 | struct ftp_parselist_data *parser = *parserp; |
193 | if(parser) |
194 | Curl_fileinfo_cleanup(parser->file_data); |
195 | free(parser); |
196 | *parserp = NULL; |
197 | } |
198 | |
199 | |
200 | CURLcode Curl_ftp_parselist_geterror(struct ftp_parselist_data *pl_data) |
201 | { |
202 | return pl_data->error; |
203 | } |
204 | |
205 | |
206 | #define FTP_LP_MALFORMATED_PERM 0x01000000 |
207 | |
208 | static int ftp_pl_get_permission(const char *str) |
209 | { |
210 | int permissions = 0; |
211 | /* USER */ |
212 | if(str[0] == 'r') |
213 | permissions |= 1 << 8; |
214 | else if(str[0] != '-') |
215 | permissions |= FTP_LP_MALFORMATED_PERM; |
216 | if(str[1] == 'w') |
217 | permissions |= 1 << 7; |
218 | else if(str[1] != '-') |
219 | permissions |= FTP_LP_MALFORMATED_PERM; |
220 | |
221 | if(str[2] == 'x') |
222 | permissions |= 1 << 6; |
223 | else if(str[2] == 's') { |
224 | permissions |= 1 << 6; |
225 | permissions |= 1 << 11; |
226 | } |
227 | else if(str[2] == 'S') |
228 | permissions |= 1 << 11; |
229 | else if(str[2] != '-') |
230 | permissions |= FTP_LP_MALFORMATED_PERM; |
231 | /* GROUP */ |
232 | if(str[3] == 'r') |
233 | permissions |= 1 << 5; |
234 | else if(str[3] != '-') |
235 | permissions |= FTP_LP_MALFORMATED_PERM; |
236 | if(str[4] == 'w') |
237 | permissions |= 1 << 4; |
238 | else if(str[4] != '-') |
239 | permissions |= FTP_LP_MALFORMATED_PERM; |
240 | if(str[5] == 'x') |
241 | permissions |= 1 << 3; |
242 | else if(str[5] == 's') { |
243 | permissions |= 1 << 3; |
244 | permissions |= 1 << 10; |
245 | } |
246 | else if(str[5] == 'S') |
247 | permissions |= 1 << 10; |
248 | else if(str[5] != '-') |
249 | permissions |= FTP_LP_MALFORMATED_PERM; |
250 | /* others */ |
251 | if(str[6] == 'r') |
252 | permissions |= 1 << 2; |
253 | else if(str[6] != '-') |
254 | permissions |= FTP_LP_MALFORMATED_PERM; |
255 | if(str[7] == 'w') |
256 | permissions |= 1 << 1; |
257 | else if(str[7] != '-') |
258 | permissions |= FTP_LP_MALFORMATED_PERM; |
259 | if(str[8] == 'x') |
260 | permissions |= 1; |
261 | else if(str[8] == 't') { |
262 | permissions |= 1; |
263 | permissions |= 1 << 9; |
264 | } |
265 | else if(str[8] == 'T') |
266 | permissions |= 1 << 9; |
267 | else if(str[8] != '-') |
268 | permissions |= FTP_LP_MALFORMATED_PERM; |
269 | |
270 | return permissions; |
271 | } |
272 | |
273 | static CURLcode ftp_pl_insert_finfo(struct Curl_easy *data, |
274 | struct fileinfo *infop) |
275 | { |
276 | curl_fnmatch_callback compare; |
277 | struct WildcardData *wc = &data->wildcard; |
278 | struct ftp_wc *ftpwc = wc->protdata; |
279 | struct Curl_llist *llist = &wc->filelist; |
280 | struct ftp_parselist_data *parser = ftpwc->parser; |
281 | bool add = TRUE; |
282 | struct curl_fileinfo *finfo = &infop->info; |
283 | |
284 | /* move finfo pointers to b_data */ |
285 | char *str = finfo->b_data; |
286 | finfo->filename = str + parser->offsets.filename; |
287 | finfo->strings.group = parser->offsets.group ? |
288 | str + parser->offsets.group : NULL; |
289 | finfo->strings.perm = parser->offsets.perm ? |
290 | str + parser->offsets.perm : NULL; |
291 | finfo->strings.target = parser->offsets.symlink_target ? |
292 | str + parser->offsets.symlink_target : NULL; |
293 | finfo->strings.time = str + parser->offsets.time; |
294 | finfo->strings.user = parser->offsets.user ? |
295 | str + parser->offsets.user : NULL; |
296 | |
297 | /* get correct fnmatch callback */ |
298 | compare = data->set.fnmatch; |
299 | if(!compare) |
300 | compare = Curl_fnmatch; |
301 | |
302 | /* filter pattern-corresponding filenames */ |
303 | Curl_set_in_callback(data, true); |
304 | if(compare(data->set.fnmatch_data, wc->pattern, |
305 | finfo->filename) == 0) { |
306 | /* discard symlink which is containing multiple " -> " */ |
307 | if((finfo->filetype == CURLFILETYPE_SYMLINK) && finfo->strings.target && |
308 | (strstr(finfo->strings.target, " -> " ))) { |
309 | add = FALSE; |
310 | } |
311 | } |
312 | else { |
313 | add = FALSE; |
314 | } |
315 | Curl_set_in_callback(data, false); |
316 | |
317 | if(add) { |
318 | Curl_llist_insert_next(llist, llist->tail, finfo, &infop->list); |
319 | } |
320 | else { |
321 | Curl_fileinfo_cleanup(infop); |
322 | } |
323 | |
324 | ftpwc->parser->file_data = NULL; |
325 | return CURLE_OK; |
326 | } |
327 | |
328 | size_t Curl_ftp_parselist(char *buffer, size_t size, size_t nmemb, |
329 | void *connptr) |
330 | { |
331 | size_t bufflen = size*nmemb; |
332 | struct Curl_easy *data = (struct Curl_easy *)connptr; |
333 | struct ftp_wc *ftpwc = data->wildcard.protdata; |
334 | struct ftp_parselist_data *parser = ftpwc->parser; |
335 | struct fileinfo *infop; |
336 | struct curl_fileinfo *finfo; |
337 | unsigned long i = 0; |
338 | CURLcode result; |
339 | size_t retsize = bufflen; |
340 | |
341 | if(parser->error) { /* error in previous call */ |
342 | /* scenario: |
343 | * 1. call => OK.. |
344 | * 2. call => OUT_OF_MEMORY (or other error) |
345 | * 3. (last) call => is skipped RIGHT HERE and the error is hadled later |
346 | * in wc_statemach() |
347 | */ |
348 | goto fail; |
349 | } |
350 | |
351 | if(parser->os_type == OS_TYPE_UNKNOWN && bufflen > 0) { |
352 | /* considering info about FILE response format */ |
353 | parser->os_type = (buffer[0] >= '0' && buffer[0] <= '9') ? |
354 | OS_TYPE_WIN_NT : OS_TYPE_UNIX; |
355 | } |
356 | |
357 | while(i < bufflen) { /* FSM */ |
358 | |
359 | char c = buffer[i]; |
360 | if(!parser->file_data) { /* tmp file data is not allocated yet */ |
361 | parser->file_data = Curl_fileinfo_alloc(); |
362 | if(!parser->file_data) { |
363 | parser->error = CURLE_OUT_OF_MEMORY; |
364 | goto fail; |
365 | } |
366 | parser->file_data->info.b_data = malloc(FTP_BUFFER_ALLOCSIZE); |
367 | if(!parser->file_data->info.b_data) { |
368 | parser->error = CURLE_OUT_OF_MEMORY; |
369 | goto fail; |
370 | } |
371 | parser->file_data->info.b_size = FTP_BUFFER_ALLOCSIZE; |
372 | parser->item_offset = 0; |
373 | parser->item_length = 0; |
374 | } |
375 | |
376 | infop = parser->file_data; |
377 | finfo = &infop->info; |
378 | finfo->b_data[finfo->b_used++] = c; |
379 | |
380 | if(finfo->b_used >= finfo->b_size - 1) { |
381 | /* if it is important, extend buffer space for file data */ |
382 | char *tmp = realloc(finfo->b_data, |
383 | finfo->b_size + FTP_BUFFER_ALLOCSIZE); |
384 | if(tmp) { |
385 | finfo->b_size += FTP_BUFFER_ALLOCSIZE; |
386 | finfo->b_data = tmp; |
387 | } |
388 | else { |
389 | Curl_fileinfo_cleanup(parser->file_data); |
390 | parser->file_data = NULL; |
391 | parser->error = CURLE_OUT_OF_MEMORY; |
392 | goto fail; |
393 | } |
394 | } |
395 | |
396 | switch(parser->os_type) { |
397 | case OS_TYPE_UNIX: |
398 | switch(parser->state.UNIX.main) { |
399 | case PL_UNIX_TOTALSIZE: |
400 | switch(parser->state.UNIX.sub.total_dirsize) { |
401 | case PL_UNIX_TOTALSIZE_INIT: |
402 | if(c == 't') { |
403 | parser->state.UNIX.sub.total_dirsize = PL_UNIX_TOTALSIZE_READING; |
404 | parser->item_length++; |
405 | } |
406 | else { |
407 | parser->state.UNIX.main = PL_UNIX_FILETYPE; |
408 | /* start FSM again not considering size of directory */ |
409 | finfo->b_used = 0; |
410 | continue; |
411 | } |
412 | break; |
413 | case PL_UNIX_TOTALSIZE_READING: |
414 | parser->item_length++; |
415 | if(c == '\r') { |
416 | parser->item_length--; |
417 | finfo->b_used--; |
418 | } |
419 | else if(c == '\n') { |
420 | finfo->b_data[parser->item_length - 1] = 0; |
421 | if(strncmp("total " , finfo->b_data, 6) == 0) { |
422 | char *endptr = finfo->b_data + 6; |
423 | /* here we can deal with directory size, pass the leading |
424 | whitespace and then the digits */ |
425 | while(ISSPACE(*endptr)) |
426 | endptr++; |
427 | while(ISDIGIT(*endptr)) |
428 | endptr++; |
429 | if(*endptr) { |
430 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
431 | goto fail; |
432 | } |
433 | parser->state.UNIX.main = PL_UNIX_FILETYPE; |
434 | finfo->b_used = 0; |
435 | } |
436 | else { |
437 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
438 | goto fail; |
439 | } |
440 | } |
441 | break; |
442 | } |
443 | break; |
444 | case PL_UNIX_FILETYPE: |
445 | switch(c) { |
446 | case '-': |
447 | finfo->filetype = CURLFILETYPE_FILE; |
448 | break; |
449 | case 'd': |
450 | finfo->filetype = CURLFILETYPE_DIRECTORY; |
451 | break; |
452 | case 'l': |
453 | finfo->filetype = CURLFILETYPE_SYMLINK; |
454 | break; |
455 | case 'p': |
456 | finfo->filetype = CURLFILETYPE_NAMEDPIPE; |
457 | break; |
458 | case 's': |
459 | finfo->filetype = CURLFILETYPE_SOCKET; |
460 | break; |
461 | case 'c': |
462 | finfo->filetype = CURLFILETYPE_DEVICE_CHAR; |
463 | break; |
464 | case 'b': |
465 | finfo->filetype = CURLFILETYPE_DEVICE_BLOCK; |
466 | break; |
467 | case 'D': |
468 | finfo->filetype = CURLFILETYPE_DOOR; |
469 | break; |
470 | default: |
471 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
472 | goto fail; |
473 | } |
474 | parser->state.UNIX.main = PL_UNIX_PERMISSION; |
475 | parser->item_length = 0; |
476 | parser->item_offset = 1; |
477 | break; |
478 | case PL_UNIX_PERMISSION: |
479 | parser->item_length++; |
480 | if(parser->item_length <= 9) { |
481 | if(!strchr("rwx-tTsS" , c)) { |
482 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
483 | goto fail; |
484 | } |
485 | } |
486 | else if(parser->item_length == 10) { |
487 | unsigned int perm; |
488 | if(c != ' ') { |
489 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
490 | goto fail; |
491 | } |
492 | finfo->b_data[10] = 0; /* terminate permissions */ |
493 | perm = ftp_pl_get_permission(finfo->b_data + parser->item_offset); |
494 | if(perm & FTP_LP_MALFORMATED_PERM) { |
495 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
496 | goto fail; |
497 | } |
498 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_PERM; |
499 | parser->file_data->info.perm = perm; |
500 | parser->offsets.perm = parser->item_offset; |
501 | |
502 | parser->item_length = 0; |
503 | parser->state.UNIX.main = PL_UNIX_HLINKS; |
504 | parser->state.UNIX.sub.hlinks = PL_UNIX_HLINKS_PRESPACE; |
505 | } |
506 | break; |
507 | case PL_UNIX_HLINKS: |
508 | switch(parser->state.UNIX.sub.hlinks) { |
509 | case PL_UNIX_HLINKS_PRESPACE: |
510 | if(c != ' ') { |
511 | if(c >= '0' && c <= '9') { |
512 | parser->item_offset = finfo->b_used - 1; |
513 | parser->item_length = 1; |
514 | parser->state.UNIX.sub.hlinks = PL_UNIX_HLINKS_NUMBER; |
515 | } |
516 | else { |
517 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
518 | goto fail; |
519 | } |
520 | } |
521 | break; |
522 | case PL_UNIX_HLINKS_NUMBER: |
523 | parser->item_length ++; |
524 | if(c == ' ') { |
525 | char *p; |
526 | long int hlinks; |
527 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
528 | hlinks = strtol(finfo->b_data + parser->item_offset, &p, 10); |
529 | if(p[0] == '\0' && hlinks != LONG_MAX && hlinks != LONG_MIN) { |
530 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_HLINKCOUNT; |
531 | parser->file_data->info.hardlinks = hlinks; |
532 | } |
533 | parser->item_length = 0; |
534 | parser->item_offset = 0; |
535 | parser->state.UNIX.main = PL_UNIX_USER; |
536 | parser->state.UNIX.sub.user = PL_UNIX_USER_PRESPACE; |
537 | } |
538 | else if(c < '0' || c > '9') { |
539 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
540 | goto fail; |
541 | } |
542 | break; |
543 | } |
544 | break; |
545 | case PL_UNIX_USER: |
546 | switch(parser->state.UNIX.sub.user) { |
547 | case PL_UNIX_USER_PRESPACE: |
548 | if(c != ' ') { |
549 | parser->item_offset = finfo->b_used - 1; |
550 | parser->item_length = 1; |
551 | parser->state.UNIX.sub.user = PL_UNIX_USER_PARSING; |
552 | } |
553 | break; |
554 | case PL_UNIX_USER_PARSING: |
555 | parser->item_length++; |
556 | if(c == ' ') { |
557 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
558 | parser->offsets.user = parser->item_offset; |
559 | parser->state.UNIX.main = PL_UNIX_GROUP; |
560 | parser->state.UNIX.sub.group = PL_UNIX_GROUP_PRESPACE; |
561 | parser->item_offset = 0; |
562 | parser->item_length = 0; |
563 | } |
564 | break; |
565 | } |
566 | break; |
567 | case PL_UNIX_GROUP: |
568 | switch(parser->state.UNIX.sub.group) { |
569 | case PL_UNIX_GROUP_PRESPACE: |
570 | if(c != ' ') { |
571 | parser->item_offset = finfo->b_used - 1; |
572 | parser->item_length = 1; |
573 | parser->state.UNIX.sub.group = PL_UNIX_GROUP_NAME; |
574 | } |
575 | break; |
576 | case PL_UNIX_GROUP_NAME: |
577 | parser->item_length++; |
578 | if(c == ' ') { |
579 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
580 | parser->offsets.group = parser->item_offset; |
581 | parser->state.UNIX.main = PL_UNIX_SIZE; |
582 | parser->state.UNIX.sub.size = PL_UNIX_SIZE_PRESPACE; |
583 | parser->item_offset = 0; |
584 | parser->item_length = 0; |
585 | } |
586 | break; |
587 | } |
588 | break; |
589 | case PL_UNIX_SIZE: |
590 | switch(parser->state.UNIX.sub.size) { |
591 | case PL_UNIX_SIZE_PRESPACE: |
592 | if(c != ' ') { |
593 | if(c >= '0' && c <= '9') { |
594 | parser->item_offset = finfo->b_used - 1; |
595 | parser->item_length = 1; |
596 | parser->state.UNIX.sub.size = PL_UNIX_SIZE_NUMBER; |
597 | } |
598 | else { |
599 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
600 | goto fail; |
601 | } |
602 | } |
603 | break; |
604 | case PL_UNIX_SIZE_NUMBER: |
605 | parser->item_length++; |
606 | if(c == ' ') { |
607 | char *p; |
608 | curl_off_t fsize; |
609 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
610 | if(!curlx_strtoofft(finfo->b_data + parser->item_offset, |
611 | &p, 10, &fsize)) { |
612 | if(p[0] == '\0' && fsize != CURL_OFF_T_MAX && |
613 | fsize != CURL_OFF_T_MIN) { |
614 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_SIZE; |
615 | parser->file_data->info.size = fsize; |
616 | } |
617 | parser->item_length = 0; |
618 | parser->item_offset = 0; |
619 | parser->state.UNIX.main = PL_UNIX_TIME; |
620 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART1; |
621 | } |
622 | } |
623 | else if(!ISDIGIT(c)) { |
624 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
625 | goto fail; |
626 | } |
627 | break; |
628 | } |
629 | break; |
630 | case PL_UNIX_TIME: |
631 | switch(parser->state.UNIX.sub.time) { |
632 | case PL_UNIX_TIME_PREPART1: |
633 | if(c != ' ') { |
634 | if(ISALNUM(c)) { |
635 | parser->item_offset = finfo->b_used -1; |
636 | parser->item_length = 1; |
637 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PART1; |
638 | } |
639 | else { |
640 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
641 | goto fail; |
642 | } |
643 | } |
644 | break; |
645 | case PL_UNIX_TIME_PART1: |
646 | parser->item_length++; |
647 | if(c == ' ') { |
648 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART2; |
649 | } |
650 | else if(!ISALNUM(c) && c != '.') { |
651 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
652 | goto fail; |
653 | } |
654 | break; |
655 | case PL_UNIX_TIME_PREPART2: |
656 | parser->item_length++; |
657 | if(c != ' ') { |
658 | if(ISALNUM(c)) { |
659 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PART2; |
660 | } |
661 | else { |
662 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
663 | goto fail; |
664 | } |
665 | } |
666 | break; |
667 | case PL_UNIX_TIME_PART2: |
668 | parser->item_length++; |
669 | if(c == ' ') { |
670 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART3; |
671 | } |
672 | else if(!ISALNUM(c) && c != '.') { |
673 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
674 | goto fail; |
675 | } |
676 | break; |
677 | case PL_UNIX_TIME_PREPART3: |
678 | parser->item_length++; |
679 | if(c != ' ') { |
680 | if(ISALNUM(c)) { |
681 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PART3; |
682 | } |
683 | else { |
684 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
685 | goto fail; |
686 | } |
687 | } |
688 | break; |
689 | case PL_UNIX_TIME_PART3: |
690 | parser->item_length++; |
691 | if(c == ' ') { |
692 | finfo->b_data[parser->item_offset + parser->item_length -1] = 0; |
693 | parser->offsets.time = parser->item_offset; |
694 | /* |
695 | if(ftp_pl_gettime(parser, finfo->b_data + parser->item_offset)) { |
696 | parser->file_data->flags |= CURLFINFOFLAG_KNOWN_TIME; |
697 | } |
698 | */ |
699 | if(finfo->filetype == CURLFILETYPE_SYMLINK) { |
700 | parser->state.UNIX.main = PL_UNIX_SYMLINK; |
701 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRESPACE; |
702 | } |
703 | else { |
704 | parser->state.UNIX.main = PL_UNIX_FILENAME; |
705 | parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_PRESPACE; |
706 | } |
707 | } |
708 | else if(!ISALNUM(c) && c != '.' && c != ':') { |
709 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
710 | goto fail; |
711 | } |
712 | break; |
713 | } |
714 | break; |
715 | case PL_UNIX_FILENAME: |
716 | switch(parser->state.UNIX.sub.filename) { |
717 | case PL_UNIX_FILENAME_PRESPACE: |
718 | if(c != ' ') { |
719 | parser->item_offset = finfo->b_used - 1; |
720 | parser->item_length = 1; |
721 | parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_NAME; |
722 | } |
723 | break; |
724 | case PL_UNIX_FILENAME_NAME: |
725 | parser->item_length++; |
726 | if(c == '\r') { |
727 | parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_WINDOWSEOL; |
728 | } |
729 | else if(c == '\n') { |
730 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
731 | parser->offsets.filename = parser->item_offset; |
732 | parser->state.UNIX.main = PL_UNIX_FILETYPE; |
733 | result = ftp_pl_insert_finfo(data, infop); |
734 | if(result) { |
735 | parser->error = result; |
736 | goto fail; |
737 | } |
738 | } |
739 | break; |
740 | case PL_UNIX_FILENAME_WINDOWSEOL: |
741 | if(c == '\n') { |
742 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
743 | parser->offsets.filename = parser->item_offset; |
744 | parser->state.UNIX.main = PL_UNIX_FILETYPE; |
745 | result = ftp_pl_insert_finfo(data, infop); |
746 | if(result) { |
747 | parser->error = result; |
748 | goto fail; |
749 | } |
750 | } |
751 | else { |
752 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
753 | goto fail; |
754 | } |
755 | break; |
756 | } |
757 | break; |
758 | case PL_UNIX_SYMLINK: |
759 | switch(parser->state.UNIX.sub.symlink) { |
760 | case PL_UNIX_SYMLINK_PRESPACE: |
761 | if(c != ' ') { |
762 | parser->item_offset = finfo->b_used - 1; |
763 | parser->item_length = 1; |
764 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME; |
765 | } |
766 | break; |
767 | case PL_UNIX_SYMLINK_NAME: |
768 | parser->item_length++; |
769 | if(c == ' ') { |
770 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET1; |
771 | } |
772 | else if(c == '\r' || c == '\n') { |
773 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
774 | goto fail; |
775 | } |
776 | break; |
777 | case PL_UNIX_SYMLINK_PRETARGET1: |
778 | parser->item_length++; |
779 | if(c == '-') { |
780 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET2; |
781 | } |
782 | else if(c == '\r' || c == '\n') { |
783 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
784 | goto fail; |
785 | } |
786 | else { |
787 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME; |
788 | } |
789 | break; |
790 | case PL_UNIX_SYMLINK_PRETARGET2: |
791 | parser->item_length++; |
792 | if(c == '>') { |
793 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET3; |
794 | } |
795 | else if(c == '\r' || c == '\n') { |
796 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
797 | goto fail; |
798 | } |
799 | else { |
800 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME; |
801 | } |
802 | break; |
803 | case PL_UNIX_SYMLINK_PRETARGET3: |
804 | parser->item_length++; |
805 | if(c == ' ') { |
806 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET4; |
807 | /* now place where is symlink following */ |
808 | finfo->b_data[parser->item_offset + parser->item_length - 4] = 0; |
809 | parser->offsets.filename = parser->item_offset; |
810 | parser->item_length = 0; |
811 | parser->item_offset = 0; |
812 | } |
813 | else if(c == '\r' || c == '\n') { |
814 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
815 | goto fail; |
816 | } |
817 | else { |
818 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME; |
819 | } |
820 | break; |
821 | case PL_UNIX_SYMLINK_PRETARGET4: |
822 | if(c != '\r' && c != '\n') { |
823 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_TARGET; |
824 | parser->item_offset = finfo->b_used - 1; |
825 | parser->item_length = 1; |
826 | } |
827 | else { |
828 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
829 | goto fail; |
830 | } |
831 | break; |
832 | case PL_UNIX_SYMLINK_TARGET: |
833 | parser->item_length++; |
834 | if(c == '\r') { |
835 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_WINDOWSEOL; |
836 | } |
837 | else if(c == '\n') { |
838 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
839 | parser->offsets.symlink_target = parser->item_offset; |
840 | result = ftp_pl_insert_finfo(data, infop); |
841 | if(result) { |
842 | parser->error = result; |
843 | goto fail; |
844 | } |
845 | parser->state.UNIX.main = PL_UNIX_FILETYPE; |
846 | } |
847 | break; |
848 | case PL_UNIX_SYMLINK_WINDOWSEOL: |
849 | if(c == '\n') { |
850 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
851 | parser->offsets.symlink_target = parser->item_offset; |
852 | result = ftp_pl_insert_finfo(data, infop); |
853 | if(result) { |
854 | parser->error = result; |
855 | goto fail; |
856 | } |
857 | parser->state.UNIX.main = PL_UNIX_FILETYPE; |
858 | } |
859 | else { |
860 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
861 | goto fail; |
862 | } |
863 | break; |
864 | } |
865 | break; |
866 | } |
867 | break; |
868 | case OS_TYPE_WIN_NT: |
869 | switch(parser->state.NT.main) { |
870 | case PL_WINNT_DATE: |
871 | parser->item_length++; |
872 | if(parser->item_length < 9) { |
873 | if(!strchr("0123456789-" , c)) { /* only simple control */ |
874 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
875 | goto fail; |
876 | } |
877 | } |
878 | else if(parser->item_length == 9) { |
879 | if(c == ' ') { |
880 | parser->state.NT.main = PL_WINNT_TIME; |
881 | parser->state.NT.sub.time = PL_WINNT_TIME_PRESPACE; |
882 | } |
883 | else { |
884 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
885 | goto fail; |
886 | } |
887 | } |
888 | else { |
889 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
890 | goto fail; |
891 | } |
892 | break; |
893 | case PL_WINNT_TIME: |
894 | parser->item_length++; |
895 | switch(parser->state.NT.sub.time) { |
896 | case PL_WINNT_TIME_PRESPACE: |
897 | if(!ISSPACE(c)) { |
898 | parser->state.NT.sub.time = PL_WINNT_TIME_TIME; |
899 | } |
900 | break; |
901 | case PL_WINNT_TIME_TIME: |
902 | if(c == ' ') { |
903 | parser->offsets.time = parser->item_offset; |
904 | finfo->b_data[parser->item_offset + parser->item_length -1] = 0; |
905 | parser->state.NT.main = PL_WINNT_DIRORSIZE; |
906 | parser->state.NT.sub.dirorsize = PL_WINNT_DIRORSIZE_PRESPACE; |
907 | parser->item_length = 0; |
908 | } |
909 | else if(!strchr("APM0123456789:" , c)) { |
910 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
911 | goto fail; |
912 | } |
913 | break; |
914 | } |
915 | break; |
916 | case PL_WINNT_DIRORSIZE: |
917 | switch(parser->state.NT.sub.dirorsize) { |
918 | case PL_WINNT_DIRORSIZE_PRESPACE: |
919 | if(c != ' ') { |
920 | parser->item_offset = finfo->b_used - 1; |
921 | parser->item_length = 1; |
922 | parser->state.NT.sub.dirorsize = PL_WINNT_DIRORSIZE_CONTENT; |
923 | } |
924 | break; |
925 | case PL_WINNT_DIRORSIZE_CONTENT: |
926 | parser->item_length ++; |
927 | if(c == ' ') { |
928 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0; |
929 | if(strcmp("<DIR>" , finfo->b_data + parser->item_offset) == 0) { |
930 | finfo->filetype = CURLFILETYPE_DIRECTORY; |
931 | finfo->size = 0; |
932 | } |
933 | else { |
934 | char *endptr; |
935 | if(curlx_strtoofft(finfo->b_data + |
936 | parser->item_offset, |
937 | &endptr, 10, &finfo->size)) { |
938 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
939 | goto fail; |
940 | } |
941 | /* correct file type */ |
942 | parser->file_data->info.filetype = CURLFILETYPE_FILE; |
943 | } |
944 | |
945 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_SIZE; |
946 | parser->item_length = 0; |
947 | parser->state.NT.main = PL_WINNT_FILENAME; |
948 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE; |
949 | } |
950 | break; |
951 | } |
952 | break; |
953 | case PL_WINNT_FILENAME: |
954 | switch(parser->state.NT.sub.filename) { |
955 | case PL_WINNT_FILENAME_PRESPACE: |
956 | if(c != ' ') { |
957 | parser->item_offset = finfo->b_used -1; |
958 | parser->item_length = 1; |
959 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_CONTENT; |
960 | } |
961 | break; |
962 | case PL_WINNT_FILENAME_CONTENT: |
963 | parser->item_length++; |
964 | if(c == '\r') { |
965 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_WINEOL; |
966 | finfo->b_data[finfo->b_used - 1] = 0; |
967 | } |
968 | else if(c == '\n') { |
969 | parser->offsets.filename = parser->item_offset; |
970 | finfo->b_data[finfo->b_used - 1] = 0; |
971 | result = ftp_pl_insert_finfo(data, infop); |
972 | if(result) { |
973 | parser->error = result; |
974 | goto fail; |
975 | } |
976 | parser->state.NT.main = PL_WINNT_DATE; |
977 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE; |
978 | } |
979 | break; |
980 | case PL_WINNT_FILENAME_WINEOL: |
981 | if(c == '\n') { |
982 | parser->offsets.filename = parser->item_offset; |
983 | result = ftp_pl_insert_finfo(data, infop); |
984 | if(result) { |
985 | parser->error = result; |
986 | goto fail; |
987 | } |
988 | parser->state.NT.main = PL_WINNT_DATE; |
989 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE; |
990 | } |
991 | else { |
992 | parser->error = CURLE_FTP_BAD_FILE_LIST; |
993 | goto fail; |
994 | } |
995 | break; |
996 | } |
997 | break; |
998 | } |
999 | break; |
1000 | default: |
1001 | retsize = bufflen + 1; |
1002 | goto fail; |
1003 | } |
1004 | |
1005 | i++; |
1006 | } |
1007 | return retsize; |
1008 | |
1009 | fail: |
1010 | |
1011 | /* Clean up any allocated memory. */ |
1012 | if(parser->file_data) { |
1013 | Curl_fileinfo_cleanup(parser->file_data); |
1014 | parser->file_data = NULL; |
1015 | } |
1016 | |
1017 | return retsize; |
1018 | } |
1019 | |
1020 | #endif /* CURL_DISABLE_FTP */ |
1021 | |