Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 : Samba utility functions
4 : Copyright (C) Andrew Tridgell 1992-1998
5 : Copyright (C) Jeremy Allison 2001-2007
6 : Copyright (C) Simo Sorce 2001
7 : Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 : Copyright (C) James Peach 2006
9 :
10 : This program is free software; you can redistribute it and/or modify
11 : it under the terms of the GNU General Public License as published by
12 : the Free Software Foundation; either version 3 of the License, or
13 : (at your option) any later version.
14 :
15 : This program is distributed in the hope that it will be useful,
16 : but WITHOUT ANY WARRANTY; without even the implied warranty of
17 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 : GNU General Public License for more details.
19 :
20 : You should have received a copy of the GNU General Public License
21 : along with this program. If not, see <http://www.gnu.org/licenses/>.
22 : */
23 :
24 : /**
25 : * @brief Small functions that don't fit anywhere else
26 : * @file util.c
27 : */
28 :
29 : #include "includes.h"
30 : #include "system/passwd.h"
31 : #include "system/filesys.h"
32 : #include "lib/util/server_id.h"
33 : #include "lib/util/memcache.h"
34 : #include "util_tdb.h"
35 : #include "ctdbd_conn.h"
36 : #include "../lib/util/util_pw.h"
37 : #include "messages.h"
38 : #include "lib/messaging/messages_dgm.h"
39 : #include "libcli/security/security.h"
40 : #include "serverid.h"
41 : #include "lib/util/sys_rw.h"
42 : #include "lib/util/sys_rw_data.h"
43 : #include "lib/util/util_process.h"
44 : #include "lib/dbwrap/dbwrap_ctdb.h"
45 : #include "lib/gencache.h"
46 : #include "lib/util/string_wrappers.h"
47 :
48 : #ifdef HAVE_SYS_PRCTL_H
49 : #include <sys/prctl.h>
50 : #endif
51 :
52 : /* Max allowable allococation - 256mb - 0x10000000 */
53 : #define MAX_ALLOC_SIZE (1024*1024*256)
54 :
55 : static enum protocol_types Protocol = PROTOCOL_COREPLUS;
56 :
57 30863 : void set_Protocol(enum protocol_types p)
58 : {
59 30863 : Protocol = p;
60 30863 : }
61 :
62 : static enum remote_arch_types ra_type = RA_UNKNOWN;
63 :
64 14425 : void gfree_all( void )
65 : {
66 14425 : gfree_loadparm();
67 14425 : gfree_charcnv();
68 14425 : gfree_interfaces();
69 14425 : gfree_debugsyms();
70 14425 : gfree_memcache();
71 :
72 14425 : }
73 :
74 : /*******************************************************************
75 : Check if a file exists - call vfs_file_exist for samba files.
76 : ********************************************************************/
77 :
78 1024 : bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
79 : bool fake_dir_create_times)
80 : {
81 0 : SMB_STRUCT_STAT st;
82 1024 : if (!sbuf)
83 0 : sbuf = &st;
84 :
85 1024 : if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
86 0 : return(False);
87 :
88 1024 : return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
89 : }
90 :
91 : /*******************************************************************
92 : Check if a unix domain socket exists - call vfs_file_exist for samba files.
93 : ********************************************************************/
94 :
95 0 : bool socket_exist(const char *fname)
96 : {
97 0 : SMB_STRUCT_STAT st;
98 0 : if (sys_stat(fname, &st, false) != 0)
99 0 : return(False);
100 :
101 0 : return S_ISSOCK(st.st_ex_mode);
102 : }
103 :
104 : /*******************************************************************
105 : Returns the size in bytes of the named given the stat struct.
106 : ********************************************************************/
107 :
108 2340793 : uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
109 : {
110 2340793 : return sbuf->st_ex_size;
111 : }
112 :
113 : /****************************************************************************
114 : Check two stats have identical dev and ino fields.
115 : ****************************************************************************/
116 :
117 292441 : bool check_same_dev_ino(const SMB_STRUCT_STAT *sbuf1,
118 : const SMB_STRUCT_STAT *sbuf2)
119 : {
120 584169 : return ((sbuf1->st_ex_dev == sbuf2->st_ex_dev) &&
121 292441 : (sbuf1->st_ex_ino == sbuf2->st_ex_ino));
122 : }
123 :
124 : /****************************************************************************
125 : Check if a stat struct is identical for use.
126 : ****************************************************************************/
127 :
128 2 : bool check_same_stat(const SMB_STRUCT_STAT *sbuf1,
129 : const SMB_STRUCT_STAT *sbuf2)
130 : {
131 4 : return ((sbuf1->st_ex_uid == sbuf2->st_ex_uid) &&
132 4 : (sbuf1->st_ex_gid == sbuf2->st_ex_gid) &&
133 2 : check_same_dev_ino(sbuf1, sbuf2));
134 : }
135 :
136 : /*******************************************************************
137 : Show a smb message structure.
138 : ********************************************************************/
139 :
140 1312238 : void show_msg(const char *buf)
141 : {
142 15942 : int i;
143 1312238 : int bcc=0;
144 :
145 1312238 : if (!DEBUGLVL(5))
146 1312238 : return;
147 :
148 0 : DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
149 : smb_len(buf),
150 : (int)CVAL(buf,smb_com),
151 : (int)CVAL(buf,smb_rcls),
152 : (int)CVAL(buf,smb_reh),
153 : (int)SVAL(buf,smb_err),
154 : (int)CVAL(buf,smb_flg),
155 : (int)SVAL(buf,smb_flg2)));
156 0 : DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
157 : (int)SVAL(buf,smb_tid),
158 : (int)SVAL(buf,smb_pid),
159 : (int)SVAL(buf,smb_uid),
160 : (int)SVAL(buf,smb_mid)));
161 0 : DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
162 :
163 0 : for (i=0;i<(int)CVAL(buf,smb_wct);i++)
164 0 : DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
165 : SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
166 :
167 0 : bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
168 :
169 0 : DEBUGADD(5,("smb_bcc=%d\n",bcc));
170 :
171 0 : if (DEBUGLEVEL < 10)
172 0 : return;
173 :
174 0 : if (DEBUGLEVEL < 50)
175 0 : bcc = MIN(bcc, 512);
176 :
177 0 : dump_data(10, (const uint8_t *)smb_buf_const(buf), bcc);
178 : }
179 :
180 : /*******************************************************************
181 : Setup only the byte count for a smb message.
182 : ********************************************************************/
183 :
184 93010 : int set_message_bcc(char *buf,int num_bytes)
185 : {
186 93010 : int num_words = CVAL(buf,smb_wct);
187 93010 : SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
188 93010 : _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
189 93010 : return (smb_size + num_words*2 + num_bytes);
190 : }
191 :
192 : /*******************************************************************
193 : Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
194 : Return the bytes added
195 : ********************************************************************/
196 :
197 38400 : ssize_t message_push_blob(uint8_t **outbuf, DATA_BLOB blob)
198 : {
199 38400 : size_t newlen = smb_len(*outbuf) + 4 + blob.length;
200 266 : uint8_t *tmp;
201 :
202 38400 : if (!(tmp = talloc_realloc(NULL, *outbuf, uint8_t, newlen))) {
203 0 : DEBUG(0, ("talloc failed\n"));
204 0 : return -1;
205 : }
206 38400 : *outbuf = tmp;
207 :
208 38400 : memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
209 38400 : set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
210 38400 : return blob.length;
211 : }
212 :
213 : /*******************************************************************
214 : Reduce a file name, removing .. elements.
215 : ********************************************************************/
216 :
217 15618 : static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
218 : {
219 15618 : char *p = NULL;
220 15618 : char *str = NULL;
221 :
222 15618 : DEBUG(3,("dos_clean_name [%s]\n",s));
223 :
224 : /* remove any double slashes */
225 15618 : str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
226 15618 : if (!str) {
227 0 : return NULL;
228 : }
229 :
230 : /* Remove leading .\\ characters */
231 15618 : if(strncmp(str, ".\\", 2) == 0) {
232 0 : trim_string(str, ".\\", NULL);
233 0 : if(*str == 0) {
234 0 : str = talloc_strdup(ctx, ".\\");
235 0 : if (!str) {
236 0 : return NULL;
237 : }
238 : }
239 : }
240 :
241 15680 : while ((p = strstr_m(str,"\\..\\")) != NULL) {
242 0 : char *s1;
243 :
244 62 : *p = 0;
245 62 : s1 = p+3;
246 :
247 62 : if ((p=strrchr_m(str,'\\')) != NULL) {
248 60 : *p = 0;
249 : } else {
250 2 : *str = 0;
251 : }
252 62 : str = talloc_asprintf(ctx,
253 : "%s%s",
254 : str,
255 : s1);
256 62 : if (!str) {
257 0 : return NULL;
258 : }
259 : }
260 :
261 15618 : trim_string(str,NULL,"\\..");
262 15618 : return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
263 : }
264 :
265 : /*******************************************************************
266 : Reduce a file name, removing .. elements.
267 : ********************************************************************/
268 :
269 16056 : char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
270 : {
271 16056 : char *p = NULL;
272 16056 : char *str = NULL;
273 :
274 16056 : DEBUG(3,("unix_clean_name [%s]\n",s));
275 :
276 : /* remove any double slashes */
277 16056 : str = talloc_all_string_sub(ctx, s, "//","/");
278 16056 : if (!str) {
279 0 : return NULL;
280 : }
281 :
282 : /* Remove leading ./ characters */
283 16056 : if(strncmp(str, "./", 2) == 0) {
284 0 : trim_string(str, "./", NULL);
285 0 : if(*str == 0) {
286 0 : str = talloc_strdup(ctx, "./");
287 0 : if (!str) {
288 0 : return NULL;
289 : }
290 : }
291 : }
292 :
293 16056 : while ((p = strstr_m(str,"/../")) != NULL) {
294 0 : char *s1;
295 :
296 0 : *p = 0;
297 0 : s1 = p+3;
298 :
299 0 : if ((p=strrchr_m(str,'/')) != NULL) {
300 0 : *p = 0;
301 : } else {
302 0 : *str = 0;
303 : }
304 0 : str = talloc_asprintf(ctx,
305 : "%s%s",
306 : str,
307 : s1);
308 0 : if (!str) {
309 0 : return NULL;
310 : }
311 : }
312 :
313 16056 : trim_string(str,NULL,"/..");
314 16056 : return talloc_all_string_sub(ctx, str, "/./", "/");
315 : }
316 :
317 15618 : char *clean_name(TALLOC_CTX *ctx, const char *s)
318 : {
319 15618 : char *str = dos_clean_name(ctx, s);
320 15618 : if (!str) {
321 0 : return NULL;
322 : }
323 15618 : return unix_clean_name(ctx, str);
324 : }
325 :
326 : /*******************************************************************
327 : Write data into an fd at a given offset. Ignore seek errors.
328 : ********************************************************************/
329 :
330 0 : ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, off_t pos)
331 : {
332 0 : size_t total=0;
333 0 : ssize_t ret;
334 :
335 0 : if (pos == (off_t)-1) {
336 0 : return write_data(fd, buffer, N);
337 : }
338 : #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
339 0 : while (total < N) {
340 0 : ret = sys_pwrite(fd,buffer + total,N - total, pos);
341 0 : if (ret == -1 && errno == ESPIPE) {
342 0 : return write_data(fd, buffer + total,N - total);
343 : }
344 0 : if (ret == -1) {
345 0 : DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
346 0 : return -1;
347 : }
348 0 : if (ret == 0) {
349 0 : return total;
350 : }
351 0 : total += ret;
352 0 : pos += ret;
353 : }
354 0 : return (ssize_t)total;
355 : #else
356 : /* Use lseek and write_data. */
357 : if (lseek(fd, pos, SEEK_SET) == -1) {
358 : if (errno != ESPIPE) {
359 : return -1;
360 : }
361 : }
362 : return write_data(fd, buffer, N);
363 : #endif
364 : }
365 :
366 : static int reinit_after_fork_pipe[2] = { -1, -1 };
367 :
368 88 : NTSTATUS init_before_fork(void)
369 : {
370 0 : int ret;
371 :
372 88 : ret = pipe(reinit_after_fork_pipe);
373 88 : if (ret == -1) {
374 0 : NTSTATUS status;
375 :
376 0 : status = map_nt_error_from_unix_common(errno);
377 :
378 0 : DEBUG(0, ("Error creating child_pipe: %s\n",
379 : nt_errstr(status)));
380 :
381 0 : return status;
382 : }
383 :
384 88 : return NT_STATUS_OK;
385 : }
386 :
387 : /**
388 : * @brief Get a fd to watch for our parent process to exit
389 : *
390 : * Samba parent processes open a pipe that naturally closes when the
391 : * parent exits. Child processes can watch the read end of the pipe
392 : * for readability: Readability with 0 bytes to read means the parent
393 : * has exited and the child process might also want to exit.
394 : */
395 :
396 0 : int parent_watch_fd(void)
397 : {
398 0 : return reinit_after_fork_pipe[0];
399 : }
400 :
401 : /**
402 : * Detect died parent by detecting EOF on the pipe
403 : */
404 11 : static void reinit_after_fork_pipe_handler(struct tevent_context *ev,
405 : struct tevent_fd *fde,
406 : uint16_t flags,
407 : void *private_data)
408 : {
409 0 : char c;
410 :
411 11 : if (sys_read(reinit_after_fork_pipe[0], &c, 1) != 1) {
412 : /*
413 : * we have reached EOF on stdin, which means the
414 : * parent has exited. Shutdown the server
415 : */
416 11 : TALLOC_FREE(fde);
417 11 : (void)kill(getpid(), SIGTERM);
418 : }
419 11 : }
420 :
421 :
422 31808 : NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
423 : struct tevent_context *ev_ctx,
424 : bool parent_longlived)
425 : {
426 31808 : NTSTATUS status = NT_STATUS_OK;
427 850 : int ret;
428 :
429 : /*
430 : * The main process thread should never
431 : * allow per_thread_cwd_enable() to be
432 : * called.
433 : */
434 31808 : per_thread_cwd_disable();
435 :
436 31808 : if (reinit_after_fork_pipe[1] != -1) {
437 31565 : close(reinit_after_fork_pipe[1]);
438 31565 : reinit_after_fork_pipe[1] = -1;
439 : }
440 :
441 : /* tdb needs special fork handling */
442 31808 : if (tdb_reopen_all(parent_longlived ? 1 : 0) != 0) {
443 0 : DEBUG(0,("tdb_reopen_all failed.\n"));
444 0 : status = NT_STATUS_OPEN_FAILED;
445 0 : goto done;
446 : }
447 :
448 31808 : if (ev_ctx != NULL) {
449 : /*
450 : * The parent can have different private data for the callbacks,
451 : * which are gone in the child. Reset the callbacks to be safe.
452 : */
453 31808 : tevent_set_trace_callback(ev_ctx, NULL, NULL);
454 31808 : tevent_set_trace_fd_callback(ev_ctx, NULL, NULL);
455 31808 : tevent_set_trace_signal_callback(ev_ctx, NULL, NULL);
456 31808 : tevent_set_trace_timer_callback(ev_ctx, NULL, NULL);
457 31808 : tevent_set_trace_immediate_callback(ev_ctx, NULL, NULL);
458 31808 : tevent_set_trace_queue_callback(ev_ctx, NULL, NULL);
459 31808 : if (tevent_re_initialise(ev_ctx) != 0) {
460 0 : smb_panic(__location__ ": Failed to re-initialise event context");
461 : }
462 : }
463 :
464 31808 : if (reinit_after_fork_pipe[0] != -1) {
465 842 : struct tevent_fd *fde;
466 :
467 31565 : fde = tevent_add_fd(ev_ctx, ev_ctx /* TALLOC_CTX */,
468 : reinit_after_fork_pipe[0], TEVENT_FD_READ,
469 : reinit_after_fork_pipe_handler, NULL);
470 31565 : if (fde == NULL) {
471 0 : smb_panic(__location__ ": Failed to add reinit_after_fork pipe event");
472 : }
473 : }
474 :
475 31808 : if (msg_ctx) {
476 : /*
477 : * For clustering, we need to re-init our ctdbd connection after the
478 : * fork
479 : */
480 31808 : status = messaging_reinit(msg_ctx);
481 31808 : if (!NT_STATUS_IS_OK(status)) {
482 0 : DEBUG(0,("messaging_reinit() failed: %s\n",
483 : nt_errstr(status)));
484 : }
485 :
486 31808 : if (lp_clustering()) {
487 0 : ret = ctdb_async_ctx_reinit(
488 : NULL, messaging_tevent_context(msg_ctx));
489 0 : if (ret != 0) {
490 0 : DBG_ERR("db_ctdb_async_ctx_reinit failed: %s\n",
491 : strerror(errno));
492 0 : return map_nt_error_from_unix(ret);
493 : }
494 : }
495 : }
496 :
497 31808 : done:
498 31808 : return status;
499 : }
500 :
501 : /****************************************************************************
502 : (Hopefully) efficient array append.
503 : ****************************************************************************/
504 :
505 2631 : void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
506 : void *element, void *_array, uint32_t *num_elements,
507 : ssize_t *array_size)
508 : {
509 2631 : void **array = (void **)_array;
510 :
511 2631 : if (*array_size < 0) {
512 0 : return;
513 : }
514 :
515 2631 : if (*array == NULL) {
516 43 : if (*array_size == 0) {
517 43 : *array_size = 128;
518 : }
519 :
520 43 : if (*array_size >= MAX_ALLOC_SIZE/element_size) {
521 0 : goto error;
522 : }
523 :
524 43 : *array = TALLOC(mem_ctx, element_size * (*array_size));
525 43 : if (*array == NULL) {
526 0 : goto error;
527 : }
528 : }
529 :
530 2631 : if (*num_elements == *array_size) {
531 16 : *array_size *= 2;
532 :
533 16 : if (*array_size >= MAX_ALLOC_SIZE/element_size) {
534 0 : goto error;
535 : }
536 :
537 16 : *array = TALLOC_REALLOC(mem_ctx, *array,
538 : element_size * (*array_size));
539 :
540 16 : if (*array == NULL) {
541 0 : goto error;
542 : }
543 : }
544 :
545 2631 : memcpy((char *)(*array) + element_size*(*num_elements),
546 : element, element_size);
547 2631 : *num_elements += 1;
548 :
549 2631 : return;
550 :
551 0 : error:
552 0 : *num_elements = 0;
553 0 : *array_size = -1;
554 : }
555 :
556 : /****************************************************************************
557 : Get my own domain name, or "" if we have none.
558 : ****************************************************************************/
559 :
560 58547 : char *get_mydnsdomname(TALLOC_CTX *ctx)
561 : {
562 0 : const char *domname;
563 0 : char *p;
564 :
565 58547 : domname = get_mydnsfullname();
566 58547 : if (!domname) {
567 0 : return NULL;
568 : }
569 :
570 58547 : p = strchr_m(domname, '.');
571 58547 : if (p) {
572 58547 : p++;
573 58547 : return talloc_strdup(ctx, p);
574 : } else {
575 0 : return talloc_strdup(ctx, "");
576 : }
577 : }
578 :
579 62 : bool process_exists(const struct server_id pid)
580 : {
581 62 : return serverid_exists(&pid);
582 : }
583 :
584 : /*******************************************************************
585 : Convert a uid into a user name.
586 : ********************************************************************/
587 :
588 176 : const char *uidtoname(uid_t uid)
589 : {
590 176 : TALLOC_CTX *ctx = talloc_tos();
591 176 : char *name = NULL;
592 176 : struct passwd *pass = NULL;
593 :
594 176 : pass = getpwuid_alloc(ctx,uid);
595 176 : if (pass) {
596 46 : name = talloc_strdup(ctx,pass->pw_name);
597 46 : TALLOC_FREE(pass);
598 : } else {
599 130 : name = talloc_asprintf(ctx,
600 : "%ld",
601 : (long int)uid);
602 : }
603 176 : return name;
604 : }
605 :
606 : /*******************************************************************
607 : Convert a gid into a group name.
608 : ********************************************************************/
609 :
610 60 : char *gidtoname(gid_t gid)
611 : {
612 4 : struct group *grp;
613 :
614 60 : grp = getgrgid(gid);
615 60 : if (grp) {
616 60 : return talloc_strdup(talloc_tos(), grp->gr_name);
617 : }
618 : else {
619 0 : return talloc_asprintf(talloc_tos(),
620 : "%d",
621 : (int)gid);
622 : }
623 : }
624 :
625 : /*******************************************************************
626 : Convert a user name into a uid.
627 : ********************************************************************/
628 :
629 368 : uid_t nametouid(const char *name)
630 : {
631 0 : struct passwd *pass;
632 0 : char *p;
633 0 : uid_t u;
634 :
635 368 : pass = Get_Pwnam_alloc(talloc_tos(), name);
636 368 : if (pass) {
637 368 : u = pass->pw_uid;
638 368 : TALLOC_FREE(pass);
639 368 : return u;
640 : }
641 :
642 0 : u = (uid_t)strtol(name, &p, 0);
643 0 : if ((p != name) && (*p == '\0'))
644 0 : return u;
645 :
646 0 : return (uid_t)-1;
647 : }
648 :
649 : /*******************************************************************
650 : Convert a name to a gid_t if possible. Return -1 if not a group.
651 : ********************************************************************/
652 :
653 197 : gid_t nametogid(const char *name)
654 : {
655 0 : struct group *grp;
656 0 : char *p;
657 0 : gid_t g;
658 :
659 197 : g = (gid_t)strtol(name, &p, 0);
660 197 : if ((p != name) && (*p == '\0'))
661 0 : return g;
662 :
663 197 : grp = getgrnam(name);
664 197 : if (grp)
665 197 : return(grp->gr_gid);
666 0 : return (gid_t)-1;
667 : }
668 :
669 : /*******************************************************************
670 : Something really nasty happened - panic !
671 : ********************************************************************/
672 :
673 0 : static void call_panic_action(const char *why, bool as_root)
674 : {
675 0 : const struct loadparm_substitution *lp_sub =
676 0 : loadparm_s3_global_substitution();
677 0 : char *cmd;
678 0 : int result;
679 :
680 0 : cmd = lp_panic_action(talloc_tos(), lp_sub);
681 0 : if (cmd == NULL || cmd[0] == '\0') {
682 0 : return;
683 : }
684 :
685 0 : DBG_ERR("Calling panic action [%s]\n", cmd);
686 :
687 : #if defined(HAVE_PRCTL) && defined(PR_SET_PTRACER)
688 : /*
689 : * Make sure all children can attach a debugger.
690 : */
691 0 : prctl(PR_SET_PTRACER, getpid(), 0, 0, 0);
692 : #endif
693 :
694 0 : if (as_root) {
695 0 : become_root();
696 : }
697 :
698 0 : result = system(cmd);
699 :
700 0 : if (as_root) {
701 0 : unbecome_root();
702 : }
703 :
704 0 : if (result == -1)
705 0 : DBG_ERR("fork failed in panic action: %s\n",
706 : strerror(errno));
707 : else
708 0 : DBG_ERR("action returned status %d\n",
709 : WEXITSTATUS(result));
710 : }
711 :
712 0 : void smb_panic_s3(const char *why)
713 : {
714 0 : call_panic_action(why, false);
715 0 : dump_core();
716 : }
717 :
718 0 : void log_panic_action(const char *msg)
719 : {
720 0 : DBG_ERR("%s", msg);
721 0 : call_panic_action(msg, true);
722 0 : }
723 :
724 : /*******************************************************************
725 : A readdir wrapper which just returns the file name.
726 : ********************************************************************/
727 :
728 0 : const char *readdirname(DIR *p)
729 : {
730 0 : struct dirent *ptr;
731 0 : char *dname;
732 :
733 0 : if (!p)
734 0 : return(NULL);
735 :
736 0 : ptr = (struct dirent *)readdir(p);
737 0 : if (!ptr)
738 0 : return(NULL);
739 :
740 0 : dname = ptr->d_name;
741 :
742 0 : return talloc_strdup(talloc_tos(), dname);
743 : }
744 :
745 : /*******************************************************************
746 : Utility function used to decide if the last component
747 : of a path matches a (possibly wildcarded) entry in a namelist.
748 : ********************************************************************/
749 :
750 6209561 : bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
751 : {
752 23300 : const char *last_component;
753 :
754 : /* if we have no list it's obviously not in the path */
755 6209561 : if ((namelist == NULL) || (namelist[0].name == NULL)) {
756 6185771 : return False;
757 : }
758 :
759 : /* Do not reject path components if namelist is set to '.*' */
760 504 : if (ISDOT(name) || ISDOTDOT(name)) {
761 70 : return false;
762 : }
763 :
764 434 : DEBUG(8, ("is_in_path: %s\n", name));
765 :
766 : /* Get the last component of the unix name. */
767 434 : last_component = strrchr_m(name, '/');
768 434 : if (!last_component) {
769 419 : last_component = name;
770 : } else {
771 29 : last_component++; /* Go past '/' */
772 : }
773 :
774 800 : for(; namelist->name != NULL; namelist++) {
775 453 : if(namelist->is_wild) {
776 427 : if (mask_match(last_component, namelist->name, case_sensitive)) {
777 76 : DEBUG(8,("is_in_path: mask match succeeded\n"));
778 76 : return True;
779 : }
780 : } else {
781 26 : if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
782 21 : (!case_sensitive && (strcasecmp_m(last_component, namelist->name) == 0))) {
783 11 : DEBUG(8,("is_in_path: match succeeded\n"));
784 11 : return True;
785 : }
786 : }
787 : }
788 347 : DEBUG(8,("is_in_path: match not found\n"));
789 342 : return False;
790 : }
791 :
792 : /*******************************************************************
793 : Strip a '/' separated list into an array of
794 : name_compare_enties structures suitable for
795 : passing to is_in_path(). We do this for
796 : speed so we can pre-parse all the names in the list
797 : and don't do it for each call to is_in_path().
798 : We also check if the entry contains a wildcard to
799 : remove a potentially expensive call to mask_match
800 : if possible.
801 : ********************************************************************/
802 :
803 88637 : void set_namearray(name_compare_entry **ppname_array, const char *namelist_in)
804 : {
805 1437 : char *name_end;
806 1437 : char *namelist;
807 1437 : char *namelist_end;
808 1437 : char *nameptr;
809 88637 : int num_entries = 0;
810 1437 : int i;
811 :
812 88637 : (*ppname_array) = NULL;
813 :
814 88637 : if((namelist_in == NULL ) || ((namelist_in != NULL) && (*namelist_in == '\0')))
815 87100 : return;
816 :
817 101 : namelist = talloc_strdup(talloc_tos(), namelist_in);
818 101 : if (namelist == NULL) {
819 0 : DEBUG(0,("set_namearray: talloc fail\n"));
820 0 : return;
821 : }
822 101 : nameptr = namelist;
823 :
824 101 : namelist_end = &namelist[strlen(namelist)];
825 :
826 : /* We need to make two passes over the string. The
827 : first to count the number of elements, the second
828 : to split it.
829 : */
830 :
831 301 : while(nameptr <= namelist_end) {
832 301 : if ( *nameptr == '/' ) {
833 : /* cope with multiple (useless) /s) */
834 97 : nameptr++;
835 97 : continue;
836 : }
837 : /* anything left? */
838 204 : if ( *nameptr == '\0' )
839 100 : break;
840 :
841 : /* find the next '/' or consume remaining */
842 103 : name_end = strchr_m(nameptr, '/');
843 103 : if (name_end == NULL) {
844 : /* Point nameptr at the terminating '\0' */
845 4 : nameptr += strlen(nameptr);
846 : } else {
847 : /* next segment please */
848 99 : nameptr = name_end + 1;
849 : }
850 103 : num_entries++;
851 : }
852 :
853 101 : if(num_entries == 0) {
854 0 : talloc_free(namelist);
855 0 : return;
856 : }
857 :
858 101 : if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
859 0 : DEBUG(0,("set_namearray: malloc fail\n"));
860 0 : talloc_free(namelist);
861 0 : return;
862 : }
863 :
864 : /* Now copy out the names */
865 100 : nameptr = namelist;
866 100 : i = 0;
867 301 : while(nameptr <= namelist_end) {
868 301 : if ( *nameptr == '/' ) {
869 : /* cope with multiple (useless) /s) */
870 97 : nameptr++;
871 97 : continue;
872 : }
873 : /* anything left? */
874 204 : if ( *nameptr == '\0' )
875 100 : break;
876 :
877 : /* find the next '/' or consume remaining */
878 103 : name_end = strchr_m(nameptr, '/');
879 103 : if (name_end != NULL) {
880 99 : *name_end = '\0';
881 : }
882 :
883 103 : (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
884 103 : if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
885 0 : DEBUG(0,("set_namearray: malloc fail (1)\n"));
886 0 : talloc_free(namelist);
887 0 : return;
888 : }
889 :
890 103 : if (name_end == NULL) {
891 : /* Point nameptr at the terminating '\0' */
892 4 : nameptr += strlen(nameptr);
893 : } else {
894 : /* next segment please */
895 99 : nameptr = name_end + 1;
896 : }
897 103 : i++;
898 : }
899 :
900 101 : (*ppname_array)[i].name = NULL;
901 :
902 101 : talloc_free(namelist);
903 101 : return;
904 : }
905 :
906 : #undef DBGC_CLASS
907 : #define DBGC_CLASS DBGC_LOCKING
908 :
909 : /****************************************************************************
910 : Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
911 : is dealt with in posix.c
912 : Returns True if we have information regarding this lock region (and returns
913 : F_UNLCK in *ptype if the region is unlocked). False if the call failed.
914 : ****************************************************************************/
915 :
916 205832 : bool fcntl_getlock(int fd, int op, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
917 : {
918 113 : struct flock lock;
919 113 : int ret;
920 :
921 205832 : DEBUG(8,("fcntl_getlock fd=%d op=%d offset=%.0f count=%.0f type=%d\n",
922 : fd,op,(double)*poffset,(double)*pcount,*ptype));
923 :
924 205832 : lock.l_type = *ptype;
925 205832 : lock.l_whence = SEEK_SET;
926 205832 : lock.l_start = *poffset;
927 205832 : lock.l_len = *pcount;
928 205832 : lock.l_pid = 0;
929 :
930 205832 : ret = sys_fcntl_ptr(fd,op,&lock);
931 :
932 205832 : if (ret == -1) {
933 0 : int saved_errno = errno;
934 0 : DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
935 : (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
936 0 : errno = saved_errno;
937 0 : return False;
938 : }
939 :
940 205832 : *ptype = lock.l_type;
941 205832 : *poffset = lock.l_start;
942 205832 : *pcount = lock.l_len;
943 205832 : *ppid = lock.l_pid;
944 :
945 205832 : DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
946 : fd, (int)lock.l_type, (unsigned int)lock.l_pid));
947 205719 : return True;
948 : }
949 :
950 : #if defined(HAVE_OFD_LOCKS)
951 211512 : int map_process_lock_to_ofd_lock(int op)
952 : {
953 211512 : switch (op) {
954 205719 : case F_GETLK:
955 : case F_OFD_GETLK:
956 205719 : op = F_OFD_GETLK;
957 205719 : break;
958 5680 : case F_SETLK:
959 : case F_OFD_SETLK:
960 5680 : op = F_OFD_SETLK;
961 5680 : break;
962 0 : case F_SETLKW:
963 : case F_OFD_SETLKW:
964 0 : op = F_OFD_SETLKW;
965 0 : break;
966 0 : default:
967 0 : return -1;
968 : }
969 211365 : return op;
970 : }
971 : #else /* HAVE_OFD_LOCKS */
972 : int map_process_lock_to_ofd_lock(int op)
973 : {
974 : return op;
975 : }
976 : #endif /* HAVE_OFD_LOCKS */
977 :
978 : #undef DBGC_CLASS
979 : #define DBGC_CLASS DBGC_ALL
980 :
981 : /*******************************************************************
982 : Is the name specified one of my netbios names.
983 : Returns true if it is equal, false otherwise.
984 : ********************************************************************/
985 :
986 20577 : static bool nb_name_equal(const char *s1, const char *s2)
987 : {
988 20577 : int cmp = strncasecmp_m(s1, s2, MAX_NETBIOSNAME_LEN-1);
989 20577 : return (cmp == 0);
990 : }
991 :
992 17646 : bool is_myname(const char *s)
993 : {
994 17646 : const char **aliases = NULL;
995 17646 : bool ok = false;
996 :
997 17646 : ok = nb_name_equal(lp_netbios_name(), s);
998 17646 : if (ok) {
999 2316 : goto done;
1000 : }
1001 :
1002 15330 : aliases = lp_netbios_aliases();
1003 15330 : if (aliases == NULL) {
1004 13843 : goto done;
1005 : }
1006 :
1007 4332 : while (*aliases != NULL) {
1008 2931 : ok = nb_name_equal(*aliases, s);
1009 2931 : if (ok) {
1010 86 : goto done;
1011 : }
1012 2845 : aliases += 1;
1013 : }
1014 :
1015 1401 : done:
1016 17646 : DBG_DEBUG("is_myname(\"%s\") returns %d\n", s, (int)ok);
1017 17646 : return ok;
1018 : }
1019 :
1020 : /*******************************************************************
1021 : we distinguish between 2K and XP by the "Native Lan Manager" string
1022 : WinXP => "Windows 2002 5.1"
1023 : WinXP 64bit => "Windows XP 5.2"
1024 : Win2k => "Windows 2000 5.0"
1025 : NT4 => "Windows NT 4.0"
1026 : Win9x => "Windows 4.0"
1027 : Windows 2003 doesn't set the native lan manager string but
1028 : they do set the domain to "Windows 2003 5.2" (probably a bug).
1029 : ********************************************************************/
1030 :
1031 0 : void ra_lanman_string( const char *native_lanman )
1032 : {
1033 0 : if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1034 0 : set_remote_arch( RA_WINXP );
1035 0 : else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1036 0 : set_remote_arch( RA_WINXP64 );
1037 0 : else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1038 0 : set_remote_arch( RA_WIN2K3 );
1039 0 : }
1040 :
1041 : static const char *remote_arch_strings[] = {
1042 : [RA_UNKNOWN] = "UNKNOWN",
1043 : [RA_WFWG] = "WfWg",
1044 : [RA_OS2] = "OS2",
1045 : [RA_WIN95] = "Win95",
1046 : [RA_WINNT] = "WinNT",
1047 : [RA_WIN2K] = "Win2K",
1048 : [RA_WINXP] = "WinXP",
1049 : [RA_WIN2K3] = "Win2K3",
1050 : [RA_VISTA] = "Vista",
1051 : [RA_SAMBA] = "Samba",
1052 : [RA_CIFSFS] = "CIFSFS",
1053 : [RA_WINXP64] = "WinXP64",
1054 : [RA_OSX] = "OSX",
1055 : };
1056 :
1057 17678 : const char *get_remote_arch_str(void)
1058 : {
1059 17678 : if (ra_type >= ARRAY_SIZE(remote_arch_strings)) {
1060 : /*
1061 : * set_remote_arch() already checks this so ra_type
1062 : * should be in the allowed range, but anyway, let's
1063 : * do another bound check here.
1064 : */
1065 0 : DBG_ERR("Remote arch info out of sync [%d] missing\n", ra_type);
1066 0 : ra_type = RA_UNKNOWN;
1067 : }
1068 17678 : return remote_arch_strings[ra_type];
1069 : }
1070 :
1071 697 : enum remote_arch_types get_remote_arch_from_str(const char *remote_arch_string)
1072 : {
1073 2 : int i;
1074 :
1075 6273 : for (i = 0; i < ARRAY_SIZE(remote_arch_strings); i++) {
1076 6273 : if (strcmp(remote_arch_string, remote_arch_strings[i]) == 0) {
1077 697 : return i;
1078 : }
1079 : }
1080 0 : return RA_UNKNOWN;
1081 : }
1082 :
1083 : /*******************************************************************
1084 : Set the horrid remote_arch string based on an enum.
1085 : ********************************************************************/
1086 :
1087 30867 : void set_remote_arch(enum remote_arch_types type)
1088 : {
1089 30867 : if (ra_type >= ARRAY_SIZE(remote_arch_strings)) {
1090 : /*
1091 : * This protects against someone adding values to enum
1092 : * remote_arch_types without updating
1093 : * remote_arch_strings array.
1094 : */
1095 0 : DBG_ERR("Remote arch info out of sync [%d] missing\n", ra_type);
1096 0 : ra_type = RA_UNKNOWN;
1097 0 : return;
1098 : }
1099 :
1100 30867 : ra_type = type;
1101 30867 : DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1102 : get_remote_arch_str()));
1103 : }
1104 :
1105 : /*******************************************************************
1106 : Get the remote_arch type.
1107 : ********************************************************************/
1108 :
1109 2204259 : enum remote_arch_types get_remote_arch(void)
1110 : {
1111 2204259 : return ra_type;
1112 : }
1113 :
1114 : #define RA_CACHE_TTL 7*24*3600
1115 :
1116 26253 : static bool remote_arch_cache_key(const struct GUID *client_guid,
1117 : fstring key)
1118 : {
1119 755 : struct GUID_txt_buf guid_buf;
1120 26253 : const char *guid_string = NULL;
1121 :
1122 26253 : guid_string = GUID_buf_string(client_guid, &guid_buf);
1123 26253 : if (guid_string == NULL) {
1124 0 : return false;
1125 : }
1126 :
1127 26253 : fstr_sprintf(key, "RA/%s", guid_string);
1128 26253 : return true;
1129 : }
1130 :
1131 : struct ra_parser_state {
1132 : bool found;
1133 : enum remote_arch_types ra;
1134 : };
1135 :
1136 697 : static void ra_parser(const struct gencache_timeout *t,
1137 : DATA_BLOB blob,
1138 : void *priv_data)
1139 : {
1140 697 : struct ra_parser_state *state = (struct ra_parser_state *)priv_data;
1141 697 : const char *ra_str = NULL;
1142 :
1143 697 : if (gencache_timeout_expired(t)) {
1144 0 : return;
1145 : }
1146 :
1147 697 : if ((blob.length == 0) || (blob.data[blob.length-1] != '\0')) {
1148 0 : DBG_ERR("Remote arch cache key not a string\n");
1149 0 : return;
1150 : }
1151 :
1152 697 : ra_str = (const char *)blob.data;
1153 697 : DBG_INFO("Got remote arch [%s] from cache\n", ra_str);
1154 :
1155 697 : state->ra = get_remote_arch_from_str(ra_str);
1156 697 : state->found = true;
1157 697 : return;
1158 : }
1159 :
1160 8430 : static bool remote_arch_cache_get(const struct GUID *client_guid)
1161 : {
1162 307 : bool ok;
1163 307 : fstring ra_key;
1164 8430 : struct ra_parser_state state = (struct ra_parser_state) {
1165 : .found = false,
1166 : .ra = RA_UNKNOWN,
1167 : };
1168 :
1169 8430 : ok = remote_arch_cache_key(client_guid, ra_key);
1170 8430 : if (!ok) {
1171 0 : return false;
1172 : }
1173 :
1174 8430 : ok = gencache_parse(ra_key, ra_parser, &state);
1175 8430 : if (!ok || !state.found) {
1176 7428 : return true;
1177 : }
1178 :
1179 697 : if (state.ra == RA_UNKNOWN) {
1180 0 : return true;
1181 : }
1182 :
1183 697 : set_remote_arch(state.ra);
1184 697 : return true;
1185 : }
1186 :
1187 17676 : static bool remote_arch_cache_set(const struct GUID *client_guid)
1188 : {
1189 442 : bool ok;
1190 442 : fstring ra_key;
1191 17676 : const char *ra_str = NULL;
1192 :
1193 17676 : if (get_remote_arch() == RA_UNKNOWN) {
1194 0 : return true;
1195 : }
1196 :
1197 17676 : ok = remote_arch_cache_key(client_guid, ra_key);
1198 17676 : if (!ok) {
1199 0 : return false;
1200 : }
1201 :
1202 17676 : ra_str = get_remote_arch_str();
1203 17676 : if (ra_str == NULL) {
1204 0 : return false;
1205 : }
1206 :
1207 17676 : ok = gencache_set(ra_key, ra_str, time(NULL) + RA_CACHE_TTL);
1208 17676 : if (!ok) {
1209 0 : return false;
1210 : }
1211 :
1212 17234 : return true;
1213 : }
1214 :
1215 26106 : bool remote_arch_cache_update(const struct GUID *client_guid)
1216 : {
1217 749 : bool ok;
1218 :
1219 26106 : if (get_remote_arch() == RA_UNKNOWN) {
1220 :
1221 8430 : become_root();
1222 8430 : ok = remote_arch_cache_get(client_guid);
1223 8430 : unbecome_root();
1224 :
1225 8430 : return ok;
1226 : }
1227 :
1228 17676 : become_root();
1229 17676 : ok = remote_arch_cache_set(client_guid);
1230 17676 : unbecome_root();
1231 :
1232 17676 : return ok;
1233 : }
1234 :
1235 147 : bool remote_arch_cache_delete(const struct GUID *client_guid)
1236 : {
1237 6 : bool ok;
1238 6 : fstring ra_key;
1239 :
1240 147 : ok = remote_arch_cache_key(client_guid, ra_key);
1241 147 : if (!ok) {
1242 0 : return false;
1243 : }
1244 :
1245 147 : become_root();
1246 147 : ok = gencache_del(ra_key);
1247 147 : unbecome_root();
1248 :
1249 147 : if (!ok) {
1250 135 : return false;
1251 : }
1252 :
1253 10 : return true;
1254 : }
1255 :
1256 :
1257 : /*****************************************************************************
1258 : Provide a checksum on a string
1259 :
1260 : Input: s - the null-terminated character string for which the checksum
1261 : will be calculated.
1262 :
1263 : Output: The checksum value calculated for s.
1264 : *****************************************************************************/
1265 :
1266 510 : int str_checksum(const char *s)
1267 : {
1268 0 : TDB_DATA key;
1269 510 : if (s == NULL)
1270 0 : return 0;
1271 :
1272 510 : key = (TDB_DATA) { .dptr = discard_const_p(uint8_t, s),
1273 510 : .dsize = strlen(s) };
1274 :
1275 510 : return tdb_jenkins_hash(&key);
1276 : }
1277 :
1278 : /*****************************************************************
1279 : Zero a memory area then free it. Used to catch bugs faster.
1280 : *****************************************************************/
1281 :
1282 32 : void zero_free(void *p, size_t size)
1283 : {
1284 32 : memset(p, 0, size);
1285 32 : SAFE_FREE(p);
1286 32 : }
1287 :
1288 : /*****************************************************************
1289 : Set our open file limit to a requested max and return the limit.
1290 : *****************************************************************/
1291 :
1292 149 : int set_maxfiles(int requested_max)
1293 : {
1294 : #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1295 0 : struct rlimit rlp;
1296 0 : int saved_current_limit;
1297 :
1298 149 : if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1299 0 : DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1300 : strerror(errno) ));
1301 : /* just guess... */
1302 0 : return requested_max;
1303 : }
1304 :
1305 : /*
1306 : * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1307 : * account for the extra fd we need
1308 : * as well as the log files and standard
1309 : * handles etc. Save the limit we want to set in case
1310 : * we are running on an OS that doesn't support this limit (AIX)
1311 : * which always returns RLIM_INFINITY for rlp.rlim_max.
1312 : */
1313 :
1314 : /* Try raising the hard (max) limit to the requested amount. */
1315 :
1316 : #if defined(RLIM_INFINITY)
1317 149 : if (rlp.rlim_max != RLIM_INFINITY) {
1318 149 : int orig_max = rlp.rlim_max;
1319 :
1320 149 : if ( rlp.rlim_max < requested_max )
1321 0 : rlp.rlim_max = requested_max;
1322 :
1323 : /* This failing is not an error - many systems (Linux) don't
1324 : support our default request of 10,000 open files. JRA. */
1325 :
1326 149 : if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1327 0 : DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1328 : (int)rlp.rlim_max, strerror(errno) ));
1329 :
1330 : /* Set failed - restore original value from get. */
1331 0 : rlp.rlim_max = orig_max;
1332 : }
1333 : }
1334 : #endif
1335 :
1336 : /* Now try setting the soft (current) limit. */
1337 :
1338 149 : saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1339 :
1340 149 : if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1341 0 : DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1342 : (int)rlp.rlim_cur, strerror(errno) ));
1343 : /* just guess... */
1344 0 : return saved_current_limit;
1345 : }
1346 :
1347 149 : if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1348 0 : DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1349 : strerror(errno) ));
1350 : /* just guess... */
1351 0 : return saved_current_limit;
1352 : }
1353 :
1354 : #if defined(RLIM_INFINITY)
1355 149 : if(rlp.rlim_cur == RLIM_INFINITY)
1356 0 : return saved_current_limit;
1357 : #endif
1358 :
1359 149 : if((int)rlp.rlim_cur > saved_current_limit)
1360 0 : return saved_current_limit;
1361 :
1362 149 : return rlp.rlim_cur;
1363 : #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1364 : /*
1365 : * No way to know - just guess...
1366 : */
1367 : return requested_max;
1368 : #endif
1369 : }
1370 :
1371 : /*****************************************************************
1372 : malloc that aborts with smb_panic on fail or zero size.
1373 : *****************************************************************/
1374 :
1375 497804 : void *smb_xmalloc_array(size_t size, unsigned int count)
1376 : {
1377 12740 : void *p;
1378 497804 : if (size == 0) {
1379 0 : smb_panic("smb_xmalloc_array: called with zero size");
1380 : }
1381 497804 : if (count >= MAX_ALLOC_SIZE/size) {
1382 0 : smb_panic("smb_xmalloc_array: alloc size too large");
1383 : }
1384 497804 : if ((p = SMB_MALLOC(size*count)) == NULL) {
1385 0 : DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
1386 : (unsigned long)size, (unsigned long)count));
1387 0 : smb_panic("smb_xmalloc_array: malloc failed");
1388 : }
1389 497804 : return p;
1390 : }
1391 :
1392 : /*****************************************************************
1393 : Get local hostname and cache result.
1394 : *****************************************************************/
1395 :
1396 2 : char *myhostname(void)
1397 : {
1398 0 : static char *ret;
1399 2 : if (ret == NULL) {
1400 2 : ret = get_myname(NULL);
1401 : }
1402 2 : return ret;
1403 : }
1404 :
1405 : /*****************************************************************
1406 : Get local hostname and cache result.
1407 : *****************************************************************/
1408 :
1409 87202 : char *myhostname_upper(void)
1410 : {
1411 212 : static char *ret;
1412 87202 : if (ret == NULL) {
1413 39609 : char *name = get_myname(NULL);
1414 39609 : if (name == NULL) {
1415 0 : return NULL;
1416 : }
1417 39609 : ret = strupper_talloc(NULL, name);
1418 39609 : talloc_free(name);
1419 : }
1420 87202 : return ret;
1421 : }
1422 :
1423 : /*******************************************************************
1424 : Given a filename - get its directory name
1425 : ********************************************************************/
1426 :
1427 11782 : bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
1428 : const char **name)
1429 : {
1430 36 : char *p;
1431 36 : ptrdiff_t len;
1432 :
1433 11782 : p = strrchr_m(dir, '/'); /* Find final '/', if any */
1434 :
1435 11782 : if (p == NULL) {
1436 5658 : if (!(*parent = talloc_strdup(mem_ctx, "."))) {
1437 0 : return False;
1438 : }
1439 5658 : if (name) {
1440 5254 : *name = dir;
1441 : }
1442 5658 : return True;
1443 : }
1444 :
1445 6124 : len = p-dir;
1446 :
1447 6124 : *parent = talloc_strndup(mem_ctx, dir, len);
1448 6124 : if (*parent == NULL) {
1449 0 : return False;
1450 : }
1451 :
1452 6124 : if (name) {
1453 4608 : *name = p+1;
1454 : }
1455 6092 : return True;
1456 : }
1457 :
1458 : /*******************************************************************
1459 : Determine if a pattern contains any Microsoft wildcard characters.
1460 : *******************************************************************/
1461 :
1462 1644744 : bool ms_has_wild(const char *s)
1463 : {
1464 1644744 : const char *found = strpbrk(s, "*?<>\"");
1465 1644744 : return (found != NULL);
1466 : }
1467 :
1468 0 : bool ms_has_wild_w(const smb_ucs2_t *s)
1469 : {
1470 0 : smb_ucs2_t c;
1471 0 : if (!s) return False;
1472 0 : while ((c = *s++)) {
1473 0 : switch (c) {
1474 0 : case UCS2_CHAR('*'):
1475 : case UCS2_CHAR('?'):
1476 : case UCS2_CHAR('<'):
1477 : case UCS2_CHAR('>'):
1478 : case UCS2_CHAR('"'):
1479 0 : return True;
1480 : }
1481 : }
1482 0 : return False;
1483 : }
1484 :
1485 : /*******************************************************************
1486 : A wrapper that handles case sensitivity and the special handling
1487 : of the ".." name.
1488 : *******************************************************************/
1489 :
1490 914985 : bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
1491 : {
1492 914985 : if (ISDOTDOT(string))
1493 18143 : string = ".";
1494 914985 : if (ISDOT(pattern))
1495 72 : return False;
1496 :
1497 914913 : return ms_fnmatch_protocol(pattern, string, Protocol, is_case_sensitive) == 0;
1498 : }
1499 :
1500 : /*******************************************************************
1501 : A wrapper that handles a list of patterns and calls mask_match()
1502 : on each. Returns True if any of the patterns match.
1503 : *******************************************************************/
1504 :
1505 296 : bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
1506 : {
1507 752 : while (listLen-- > 0) {
1508 516 : if (mask_match(string, *list++, is_case_sensitive))
1509 60 : return True;
1510 : }
1511 236 : return False;
1512 : }
1513 :
1514 : /**********************************************************************
1515 : Converts a name to a fully qualified domain name.
1516 : Returns true if lookup succeeded, false if not (then fqdn is set to name)
1517 : Uses getaddrinfo() with AI_CANONNAME flag to obtain the official
1518 : canonical name of the host. getaddrinfo() may use a variety of sources
1519 : including /etc/hosts to obtain the domainname. It expects aliases in
1520 : /etc/hosts to NOT be the FQDN. The FQDN should come first.
1521 : ************************************************************************/
1522 :
1523 48 : bool name_to_fqdn(fstring fqdn, const char *name)
1524 : {
1525 48 : char *full = NULL;
1526 0 : struct addrinfo hints;
1527 0 : struct addrinfo *result;
1528 0 : int s;
1529 :
1530 : /* Configure hints to obtain canonical name */
1531 :
1532 48 : memset(&hints, 0, sizeof(struct addrinfo));
1533 48 : hints.ai_family = AF_UNSPEC; /* Allow IPv4 or IPv6 */
1534 48 : hints.ai_socktype = SOCK_DGRAM; /* Datagram socket */
1535 48 : hints.ai_flags = AI_CANONNAME; /* Get host's FQDN */
1536 48 : hints.ai_protocol = 0; /* Any protocol */
1537 :
1538 48 : s = getaddrinfo(name, NULL, &hints, &result);
1539 48 : if (s != 0) {
1540 26 : DBG_WARNING("getaddrinfo lookup for %s failed: %s\n",
1541 : name,
1542 : gai_strerror(s));
1543 26 : fstrcpy(fqdn, name);
1544 26 : return false;
1545 : }
1546 22 : full = result->ai_canonname;
1547 :
1548 : /* Find out if the FQDN is returned as an alias
1549 : * to cope with /etc/hosts files where the first
1550 : * name is not the FQDN but the short name.
1551 : * getaddrinfo provides no easy way of handling aliases
1552 : * in /etc/hosts. Users should make sure the FQDN
1553 : * comes first in /etc/hosts. */
1554 22 : if (full && (! strchr_m(full, '.'))) {
1555 0 : DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
1556 0 : DEBUGADD(1, (" Full qualified domain names (FQDNs) should not be specified\n"));
1557 0 : DEBUGADD(1, (" as an alias in /etc/hosts. FQDN should be the first name\n"));
1558 0 : DEBUGADD(1, (" prior to any aliases.\n"));
1559 : }
1560 22 : if (full && (strcasecmp_m(full, "localhost.localdomain") == 0)) {
1561 0 : DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
1562 0 : DEBUGADD(1, (" Specifying the machine hostname for address 127.0.0.1 may lead\n"));
1563 0 : DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
1564 0 : DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
1565 : }
1566 :
1567 22 : DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
1568 22 : fstrcpy(fqdn, full);
1569 22 : freeaddrinfo(result); /* No longer needed */
1570 22 : return true;
1571 : }
1572 :
1573 208 : struct server_id interpret_pid(const char *pid_string)
1574 : {
1575 208 : return server_id_from_string(get_my_vnn(), pid_string);
1576 : }
1577 :
1578 : /****************************************************************
1579 : Check if an offset into a buffer is safe.
1580 : If this returns True it's safe to indirect into the byte at
1581 : pointer ptr+off.
1582 : ****************************************************************/
1583 :
1584 364 : bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
1585 : {
1586 364 : const char *end_base = buf_base + buf_len;
1587 364 : char *end_ptr = ptr + off;
1588 :
1589 364 : if (!buf_base || !ptr) {
1590 0 : return False;
1591 : }
1592 :
1593 364 : if (end_base < buf_base || end_ptr < ptr) {
1594 0 : return False; /* wrap. */
1595 : }
1596 :
1597 364 : if (end_ptr < end_base) {
1598 364 : return True;
1599 : }
1600 0 : return False;
1601 : }
1602 :
1603 : /****************************************************************
1604 : Return a safe pointer into a string within a buffer, or NULL.
1605 : ****************************************************************/
1606 :
1607 115 : char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
1608 : {
1609 115 : if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
1610 0 : return NULL;
1611 : }
1612 : /* Check if a valid string exists at this offset. */
1613 115 : if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
1614 0 : return NULL;
1615 : }
1616 115 : return ptr + off;
1617 : }
1618 :
1619 :
1620 : /****************************************************************
1621 : Split DOM\user into DOM and user. Do not mix with winbind variants of that
1622 : call (they take care of winbind separator and other winbind specific settings).
1623 : ****************************************************************/
1624 :
1625 114 : bool split_domain_user(TALLOC_CTX *mem_ctx,
1626 : const char *full_name,
1627 : char **domain,
1628 : char **user)
1629 : {
1630 114 : const char *p = NULL;
1631 :
1632 114 : p = strchr_m(full_name, '\\');
1633 :
1634 114 : if (p != NULL) {
1635 0 : *domain = talloc_strndup(mem_ctx, full_name,
1636 0 : PTR_DIFF(p, full_name));
1637 0 : if (*domain == NULL) {
1638 0 : return false;
1639 : }
1640 0 : *user = talloc_strdup(mem_ctx, p+1);
1641 0 : if (*user == NULL) {
1642 0 : TALLOC_FREE(*domain);
1643 0 : return false;
1644 : }
1645 : } else {
1646 114 : *domain = NULL;
1647 114 : *user = talloc_strdup(mem_ctx, full_name);
1648 114 : if (*user == NULL) {
1649 0 : return false;
1650 : }
1651 : }
1652 :
1653 114 : return true;
1654 : }
1655 :
1656 : /****************************************************************
1657 : strip off leading '\\' from a hostname
1658 : ****************************************************************/
1659 :
1660 160 : const char *strip_hostname(const char *s)
1661 : {
1662 160 : if (!s) {
1663 0 : return NULL;
1664 : }
1665 :
1666 160 : if (strlen_m(s) < 3) {
1667 0 : return s;
1668 : }
1669 :
1670 160 : if (s[0] == '\\') s++;
1671 160 : if (s[0] == '\\') s++;
1672 :
1673 160 : return s;
1674 : }
1675 :
1676 137690 : bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
1677 : {
1678 137690 : if (!NT_STATUS_IS_OK(err1)) {
1679 128 : *result = err1;
1680 128 : return true;
1681 : }
1682 137562 : if (!NT_STATUS_IS_OK(err2)) {
1683 1685 : *result = err2;
1684 1685 : return true;
1685 : }
1686 135877 : return false;
1687 : }
1688 :
1689 0 : int timeval_to_msec(struct timeval t)
1690 : {
1691 0 : return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;
1692 : }
1693 :
1694 : /*******************************************************************
1695 : Check a given DOS pathname is valid for a share.
1696 : ********************************************************************/
1697 :
1698 30 : char *valid_share_pathname(TALLOC_CTX *ctx, const char *dos_pathname)
1699 : {
1700 30 : char *ptr = NULL;
1701 :
1702 30 : if (!dos_pathname) {
1703 0 : return NULL;
1704 : }
1705 :
1706 30 : ptr = talloc_strdup(ctx, dos_pathname);
1707 30 : if (!ptr) {
1708 0 : return NULL;
1709 : }
1710 : /* Convert any '\' paths to '/' */
1711 30 : unix_format(ptr);
1712 30 : ptr = unix_clean_name(ctx, ptr);
1713 30 : if (!ptr) {
1714 0 : return NULL;
1715 : }
1716 :
1717 : /* NT is braindead - it wants a C: prefix to a pathname ! So strip it. */
1718 30 : if (strlen(ptr) > 2 && ptr[1] == ':' && ptr[0] != '/')
1719 3 : ptr += 2;
1720 :
1721 : /* Only absolute paths allowed. */
1722 30 : if (*ptr != '/')
1723 0 : return NULL;
1724 :
1725 30 : return ptr;
1726 : }
1727 :
1728 : /*******************************************************************
1729 : Return True if the filename is one of the special executable types.
1730 : ********************************************************************/
1731 :
1732 1767 : bool is_executable(const char *fname)
1733 : {
1734 1767 : if ((fname = strrchr_m(fname,'.'))) {
1735 2852 : if (strequal(fname,".com") ||
1736 2852 : strequal(fname,".dll") ||
1737 2258 : strequal(fname,".exe") ||
1738 832 : strequal(fname,".sym")) {
1739 594 : return True;
1740 : }
1741 : }
1742 1150 : return False;
1743 : }
1744 :
1745 : /****************************************************************************
1746 : Open a file with a share mode - old openX method - map into NTCreate.
1747 : ****************************************************************************/
1748 :
1749 27239 : bool map_open_params_to_ntcreate(const char *smb_base_fname,
1750 : int deny_mode, int open_func,
1751 : uint32_t *paccess_mask,
1752 : uint32_t *pshare_mode,
1753 : uint32_t *pcreate_disposition,
1754 : uint32_t *pcreate_options,
1755 : uint32_t *pprivate_flags)
1756 : {
1757 122 : uint32_t access_mask;
1758 122 : uint32_t share_mode;
1759 122 : uint32_t create_disposition;
1760 27239 : uint32_t create_options = FILE_NON_DIRECTORY_FILE;
1761 27239 : uint32_t private_flags = 0;
1762 :
1763 27239 : DEBUG(10,("map_open_params_to_ntcreate: fname = %s, deny_mode = 0x%x, "
1764 : "open_func = 0x%x\n",
1765 : smb_base_fname, (unsigned int)deny_mode,
1766 : (unsigned int)open_func ));
1767 :
1768 : /* Create the NT compatible access_mask. */
1769 27239 : switch (GET_OPENX_MODE(deny_mode)) {
1770 4729 : case DOS_OPEN_EXEC: /* Implies read-only - used to be FILE_READ_DATA */
1771 : case DOS_OPEN_RDONLY:
1772 4729 : access_mask = FILE_GENERIC_READ;
1773 4729 : break;
1774 2459 : case DOS_OPEN_WRONLY:
1775 2459 : access_mask = FILE_GENERIC_WRITE;
1776 2459 : break;
1777 20035 : case DOS_OPEN_RDWR:
1778 : case DOS_OPEN_FCB:
1779 20035 : access_mask = FILE_GENERIC_READ|FILE_GENERIC_WRITE;
1780 20035 : break;
1781 0 : default:
1782 0 : DEBUG(10,("map_open_params_to_ntcreate: bad open mode = 0x%x\n",
1783 : (unsigned int)GET_OPENX_MODE(deny_mode)));
1784 0 : return False;
1785 : }
1786 :
1787 : /* Create the NT compatible create_disposition. */
1788 27239 : switch (open_func) {
1789 328 : case OPENX_FILE_EXISTS_FAIL|OPENX_FILE_CREATE_IF_NOT_EXIST:
1790 328 : create_disposition = FILE_CREATE;
1791 328 : break;
1792 :
1793 10075 : case OPENX_FILE_EXISTS_OPEN:
1794 10075 : create_disposition = FILE_OPEN;
1795 10075 : break;
1796 :
1797 14552 : case OPENX_FILE_EXISTS_OPEN|OPENX_FILE_CREATE_IF_NOT_EXIST:
1798 14552 : create_disposition = FILE_OPEN_IF;
1799 14552 : break;
1800 :
1801 36 : case OPENX_FILE_EXISTS_TRUNCATE:
1802 36 : create_disposition = FILE_OVERWRITE;
1803 36 : break;
1804 :
1805 2222 : case OPENX_FILE_EXISTS_TRUNCATE|OPENX_FILE_CREATE_IF_NOT_EXIST:
1806 2222 : create_disposition = FILE_OVERWRITE_IF;
1807 2222 : break;
1808 :
1809 15 : default:
1810 : /* From samba4 - to be confirmed. */
1811 15 : if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_EXEC) {
1812 4 : create_disposition = FILE_CREATE;
1813 4 : break;
1814 : }
1815 10 : DEBUG(10,("map_open_params_to_ntcreate: bad "
1816 : "open_func 0x%x\n", (unsigned int)open_func));
1817 8 : return False;
1818 : }
1819 :
1820 : /* Create the NT compatible share modes. */
1821 27229 : switch (GET_DENY_MODE(deny_mode)) {
1822 1740 : case DENY_ALL:
1823 1740 : share_mode = FILE_SHARE_NONE;
1824 1740 : break;
1825 :
1826 1263 : case DENY_WRITE:
1827 1263 : share_mode = FILE_SHARE_READ;
1828 1263 : break;
1829 :
1830 1244 : case DENY_READ:
1831 1244 : share_mode = FILE_SHARE_WRITE;
1832 1244 : break;
1833 :
1834 20075 : case DENY_NONE:
1835 20075 : share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1836 20075 : break;
1837 :
1838 1630 : case DENY_DOS:
1839 1630 : private_flags |= NTCREATEX_FLAG_DENY_DOS;
1840 1630 : if (is_executable(smb_base_fname)) {
1841 534 : share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
1842 : } else {
1843 1096 : if (GET_OPENX_MODE(deny_mode) == DOS_OPEN_RDONLY) {
1844 530 : share_mode = FILE_SHARE_READ;
1845 : } else {
1846 564 : share_mode = FILE_SHARE_NONE;
1847 : }
1848 : }
1849 1608 : break;
1850 :
1851 1263 : case DENY_FCB:
1852 1263 : private_flags |= NTCREATEX_FLAG_DENY_FCB;
1853 1263 : share_mode = FILE_SHARE_NONE;
1854 1263 : break;
1855 :
1856 8 : default:
1857 8 : DEBUG(10,("map_open_params_to_ntcreate: bad deny_mode 0x%x\n",
1858 : (unsigned int)GET_DENY_MODE(deny_mode) ));
1859 8 : return False;
1860 : }
1861 :
1862 27221 : DEBUG(10,("map_open_params_to_ntcreate: file %s, access_mask = 0x%x, "
1863 : "share_mode = 0x%x, create_disposition = 0x%x, "
1864 : "create_options = 0x%x private_flags = 0x%x\n",
1865 : smb_base_fname,
1866 : (unsigned int)access_mask,
1867 : (unsigned int)share_mode,
1868 : (unsigned int)create_disposition,
1869 : (unsigned int)create_options,
1870 : (unsigned int)private_flags));
1871 :
1872 27221 : if (paccess_mask) {
1873 27221 : *paccess_mask = access_mask;
1874 : }
1875 27221 : if (pshare_mode) {
1876 27221 : *pshare_mode = share_mode;
1877 : }
1878 27221 : if (pcreate_disposition) {
1879 27221 : *pcreate_disposition = create_disposition;
1880 : }
1881 27221 : if (pcreate_options) {
1882 27221 : *pcreate_options = create_options;
1883 : }
1884 27221 : if (pprivate_flags) {
1885 23386 : *pprivate_flags = private_flags;
1886 : }
1887 :
1888 27101 : return True;
1889 :
1890 : }
1891 :
1892 : /*************************************************************************
1893 : Return a talloced copy of a struct security_unix_token. NULL on fail.
1894 : *************************************************************************/
1895 :
1896 170365 : struct security_unix_token *copy_unix_token(TALLOC_CTX *ctx, const struct security_unix_token *tok)
1897 : {
1898 340 : struct security_unix_token *cpy;
1899 :
1900 170365 : cpy = talloc(ctx, struct security_unix_token);
1901 170365 : if (!cpy) {
1902 0 : return NULL;
1903 : }
1904 :
1905 170365 : *cpy = (struct security_unix_token){
1906 170365 : .uid = tok->uid,
1907 170365 : .gid = tok->gid,
1908 170365 : .ngroups = tok->ngroups,
1909 : };
1910 :
1911 170365 : if (tok->ngroups) {
1912 : /* Make this a talloc child of cpy. */
1913 170365 : cpy->groups = (gid_t *)talloc_memdup(
1914 : cpy, tok->groups, tok->ngroups * sizeof(gid_t));
1915 170365 : if (!cpy->groups) {
1916 0 : TALLOC_FREE(cpy);
1917 0 : return NULL;
1918 : }
1919 : }
1920 170025 : return cpy;
1921 : }
1922 :
1923 : /****************************************************************************
1924 : Return a root token
1925 : ****************************************************************************/
1926 :
1927 10075 : struct security_unix_token *root_unix_token(TALLOC_CTX *mem_ctx)
1928 : {
1929 10075 : struct security_unix_token *t = NULL;
1930 :
1931 10075 : t = talloc_zero(mem_ctx, struct security_unix_token);
1932 10075 : if (t == NULL) {
1933 0 : return NULL;
1934 : }
1935 :
1936 : /*
1937 : * This is not needed, but lets make it explicit, not implicit.
1938 : */
1939 10075 : *t = (struct security_unix_token) {
1940 : .uid = 0,
1941 : .gid = 0,
1942 : .ngroups = 0,
1943 : .groups = NULL
1944 : };
1945 :
1946 10075 : return t;
1947 : }
1948 :
1949 152 : char *utok_string(TALLOC_CTX *mem_ctx, const struct security_unix_token *tok)
1950 : {
1951 0 : char *str;
1952 0 : uint32_t i;
1953 :
1954 304 : str = talloc_asprintf(
1955 : mem_ctx,
1956 : "uid=%ju, gid=%ju, %"PRIu32" groups:",
1957 152 : (uintmax_t)(tok->uid),
1958 152 : (uintmax_t)(tok->gid),
1959 152 : tok->ngroups);
1960 :
1961 1059 : for (i=0; i<tok->ngroups; i++) {
1962 907 : talloc_asprintf_addbuf(
1963 907 : &str, " %ju", (uintmax_t)tok->groups[i]);
1964 : }
1965 :
1966 152 : return str;
1967 : }
1968 :
1969 : /****************************************************************************
1970 : Check that a file matches a particular file type.
1971 : ****************************************************************************/
1972 :
1973 1009028 : bool dir_check_ftype(uint32_t mode, uint32_t dirtype)
1974 : {
1975 502 : uint32_t mask;
1976 :
1977 : /* Check the "may have" search bits. */
1978 1009028 : if (((mode & ~dirtype) &
1979 : (FILE_ATTRIBUTE_HIDDEN |
1980 : FILE_ATTRIBUTE_SYSTEM |
1981 : FILE_ATTRIBUTE_DIRECTORY)) != 0) {
1982 8468 : return false;
1983 : }
1984 :
1985 : /* Check the "must have" bits,
1986 : which are the may have bits shifted eight */
1987 : /* If must have bit is set, the file/dir can
1988 : not be returned in search unless the matching
1989 : file attribute is set */
1990 1000472 : mask = ((dirtype >> 8) & (FILE_ATTRIBUTE_DIRECTORY|
1991 : FILE_ATTRIBUTE_ARCHIVE|
1992 : FILE_ATTRIBUTE_READONLY|
1993 : FILE_ATTRIBUTE_HIDDEN|
1994 : FILE_ATTRIBUTE_SYSTEM)); /* & 0x37 */
1995 1000472 : if(mask) {
1996 16016 : if((mask & (mode & (FILE_ATTRIBUTE_DIRECTORY|
1997 : FILE_ATTRIBUTE_ARCHIVE|
1998 : FILE_ATTRIBUTE_READONLY|
1999 : FILE_ATTRIBUTE_HIDDEN|
2000 16016 : FILE_ATTRIBUTE_SYSTEM))) == mask) {
2001 : /* check if matching attribute present */
2002 8008 : return true;
2003 : } else {
2004 8008 : return false;
2005 : }
2006 : }
2007 :
2008 984042 : return true;
2009 : }
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