source: vendor/current/source3/lib/substitute.c

Last change on this file was 989, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.7
File size: 20.6 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 string substitution functions
4 Copyright (C) Andrew Tridgell 1992-2000
5 Copyright (C) Gerald Carter 2006
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19*/
20
21
22#include "includes.h"
23#include "system/passwd.h"
24#include "secrets.h"
25#include "auth.h"
26
27userdom_struct current_user_info;
28fstring remote_proto="UNKNOWN";
29
30/**
31 * Set the 'local' machine name
32 * @param local_name the name we are being called
33 * @param if this is the 'final' name for us, not be be changed again
34 */
35
36static char *local_machine;
37
38void free_local_machine_name(void)
39{
40 TALLOC_FREE(local_machine);
41}
42
43bool set_local_machine_name(const char *local_name, bool perm)
44{
45 static bool already_perm = false;
46 char *tmp_local_machine = NULL;
47 size_t len;
48
49 if (already_perm) {
50 return true;
51 }
52
53 tmp_local_machine = talloc_strdup(NULL, local_name);
54 if (!tmp_local_machine) {
55 return false;
56 }
57 trim_char(tmp_local_machine,' ',' ');
58
59 TALLOC_FREE(local_machine);
60 len = strlen(tmp_local_machine);
61 local_machine = (char *)TALLOC_ZERO(NULL, len+1);
62 if (!local_machine) {
63 TALLOC_FREE(tmp_local_machine);
64 return false;
65 }
66 /* alpha_strcpy includes the space for the terminating nul. */
67 alpha_strcpy(local_machine,tmp_local_machine,
68 SAFE_NETBIOS_CHARS,len+1);
69 if (!strlower_m(local_machine)) {
70 TALLOC_FREE(tmp_local_machine);
71 return false;
72 }
73 TALLOC_FREE(tmp_local_machine);
74
75 already_perm = perm;
76
77 return true;
78}
79
80const char *get_local_machine_name(void)
81{
82 if (!local_machine || !*local_machine) {
83 return lp_netbios_name();
84 }
85
86 return local_machine;
87}
88
89/**
90 * Set the 'remote' machine name
91 * @param remote_name the name our client wants to be called by
92 * @param if this is the 'final' name for them, not be be changed again
93 */
94
95static char *remote_machine;
96
97bool set_remote_machine_name(const char *remote_name, bool perm)
98{
99 static bool already_perm = False;
100 char *tmp_remote_machine;
101 size_t len;
102
103 if (already_perm) {
104 return true;
105 }
106
107 tmp_remote_machine = talloc_strdup(NULL, remote_name);
108 if (!tmp_remote_machine) {
109 return false;
110 }
111 trim_char(tmp_remote_machine,' ',' ');
112
113 TALLOC_FREE(remote_machine);
114 len = strlen(tmp_remote_machine);
115 remote_machine = (char *)TALLOC_ZERO(NULL, len+1);
116 if (!remote_machine) {
117 TALLOC_FREE(tmp_remote_machine);
118 return false;
119 }
120
121 /* alpha_strcpy includes the space for the terminating nul. */
122 alpha_strcpy(remote_machine,tmp_remote_machine,
123 SAFE_NETBIOS_CHARS,len+1);
124 if (!strlower_m(remote_machine)) {
125 TALLOC_FREE(tmp_remote_machine);
126 return false;
127 }
128 TALLOC_FREE(tmp_remote_machine);
129
130 already_perm = perm;
131
132 return true;
133}
134
135const char *get_remote_machine_name(void)
136{
137 return remote_machine ? remote_machine : "";
138}
139
140/*******************************************************************
141 Setup the string used by %U substitution.
142********************************************************************/
143
144static char *smb_user_name;
145
146void sub_set_smb_name(const char *name)
147{
148 char *tmp;
149 size_t len;
150 bool is_machine_account = false;
151
152 /* don't let anonymous logins override the name */
153 if (!name || !*name) {
154 return;
155 }
156
157 tmp = talloc_strdup(NULL, name);
158 if (!tmp) {
159 return;
160 }
161 trim_char(tmp, ' ', ' ');
162 if (!strlower_m(tmp)) {
163 TALLOC_FREE(tmp);
164 return;
165 }
166
167 len = strlen(tmp);
168
169 if (len == 0) {
170 TALLOC_FREE(tmp);
171 return;
172 }
173
174 /* long story but here goes....we have to allow usernames
175 ending in '$' as they are valid machine account names.
176 So check for a machine account and re-add the '$'
177 at the end after the call to alpha_strcpy(). --jerry */
178
179 if (tmp[len-1] == '$') {
180 is_machine_account = True;
181 }
182
183 TALLOC_FREE(smb_user_name);
184 smb_user_name = (char *)TALLOC_ZERO(NULL, len+1);
185 if (!smb_user_name) {
186 TALLOC_FREE(tmp);
187 return;
188 }
189
190 /* alpha_strcpy includes the space for the terminating nul. */
191 alpha_strcpy(smb_user_name, tmp,
192 SAFE_NETBIOS_CHARS,
193 len+1);
194
195 TALLOC_FREE(tmp);
196
197 if (is_machine_account) {
198 len = strlen(smb_user_name);
199 smb_user_name[len-1] = '$';
200 }
201}
202
203static char sub_peeraddr[INET6_ADDRSTRLEN];
204static const char *sub_peername = NULL;
205static char sub_sockaddr[INET6_ADDRSTRLEN];
206
207void sub_set_socket_ids(const char *peeraddr, const char *peername,
208 const char *sockaddr)
209{
210 const char *addr = peeraddr;
211
212 if (strnequal(addr, "::ffff:", 7)) {
213 addr += 7;
214 }
215 strlcpy(sub_peeraddr, addr, sizeof(sub_peeraddr));
216
217 if (sub_peername != NULL &&
218 sub_peername != sub_peeraddr) {
219 talloc_free(discard_const_p(char,sub_peername));
220 sub_peername = NULL;
221 }
222 sub_peername = talloc_strdup(NULL, peername);
223 if (sub_peername == NULL) {
224 sub_peername = sub_peeraddr;
225 }
226
227 /*
228 * Shouldn't we do the ::ffff: cancellation here as well? The
229 * original code in talloc_sub_basic() did not do it, so I'm
230 * leaving it out here as well for compatibility.
231 */
232 strlcpy(sub_sockaddr, sockaddr, sizeof(sub_sockaddr));
233}
234
235static const char *get_smb_user_name(void)
236{
237 return smb_user_name ? smb_user_name : "";
238}
239
240/*******************************************************************
241 Setup the strings used by substitutions. Called per packet. Ensure
242 %U name is set correctly also.
243
244 smb_name must be sanitized by alpha_strcpy
245********************************************************************/
246
247void set_current_user_info(const char *smb_name, const char *unix_name,
248 const char *domain)
249{
250 fstrcpy(current_user_info.smb_name, smb_name);
251 fstrcpy(current_user_info.unix_name, unix_name);
252 fstrcpy(current_user_info.domain, domain);
253
254 /* The following is safe as current_user_info.smb_name
255 * has already been sanitised in register_existing_vuid. */
256
257 sub_set_smb_name(current_user_info.smb_name);
258}
259
260/*******************************************************************
261 Return the current active user name.
262*******************************************************************/
263
264const char *get_current_username(void)
265{
266 if (current_user_info.smb_name[0] == '\0' ) {
267 return get_smb_user_name();
268 }
269
270 return current_user_info.smb_name;
271}
272
273/*******************************************************************
274 Given a pointer to a %$(NAME) in p and the whole string in str
275 expand it as an environment variable.
276 str must be a talloced string.
277 Return a new allocated and expanded string.
278 Based on code by Branko Cibej <branko.cibej@hermes.si>
279 When this is called p points at the '%' character.
280 May substitute multiple occurrencies of the same env var.
281********************************************************************/
282
283static char *realloc_expand_env_var(char *str, char *p)
284{
285 char *envname;
286 char *envval;
287 char *q, *r;
288 int copylen;
289
290 if (p[0] != '%' || p[1] != '$' || p[2] != '(') {
291 return str;
292 }
293
294 /*
295 * Look for the terminating ')'.
296 */
297
298 if ((q = strchr_m(p,')')) == NULL) {
299 DEBUG(0,("expand_env_var: Unterminated environment variable [%s]\n", p));
300 return str;
301 }
302
303 /*
304 * Extract the name from within the %$(NAME) string.
305 */
306
307 r = p + 3;
308 copylen = q - r;
309
310 /* reserve space for use later add %$() chars */
311 if ( (envname = talloc_array(talloc_tos(), char, copylen + 1 + 4)) == NULL ) {
312 return NULL;
313 }
314
315 strncpy(envname,r,copylen);
316 envname[copylen] = '\0';
317
318 if ((envval = getenv(envname)) == NULL) {
319 DEBUG(0,("expand_env_var: Environment variable [%s] not set\n", envname));
320 TALLOC_FREE(envname);
321 return str;
322 }
323
324 /*
325 * Copy the full %$(NAME) into envname so it
326 * can be replaced.
327 */
328
329 copylen = q + 1 - p;
330 strncpy(envname,p,copylen);
331 envname[copylen] = '\0';
332 r = realloc_string_sub(str, envname, envval);
333 TALLOC_FREE(envname);
334
335 return r;
336}
337
338/*******************************************************************
339 Patch from jkf@soton.ac.uk
340 Added this to implement %p (NIS auto-map version of %H)
341*******************************************************************/
342
343static const char *automount_path(const char *user_name)
344{
345 TALLOC_CTX *ctx = talloc_tos();
346 const char *server_path;
347
348 /* use the passwd entry as the default */
349 /* this will be the default if WITH_AUTOMOUNT is not used or fails */
350
351 server_path = talloc_strdup(ctx, get_user_home_dir(ctx, user_name));
352 if (!server_path) {
353 return "";
354 }
355
356#if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
357
358 if (lp_nis_homedir()) {
359 const char *home_path_start;
360 char *automount_value = automount_lookup(ctx, user_name);
361
362 if(automount_value && strlen(automount_value) > 0) {
363 home_path_start = strchr_m(automount_value,':');
364 if (home_path_start != NULL) {
365 DEBUG(5, ("NIS lookup succeeded. "
366 "Home path is: %s\n",
367 home_path_start ?
368 (home_path_start+1):""));
369 server_path = talloc_strdup(ctx,
370 home_path_start+1);
371 if (!server_path) {
372 server_path = "";
373 }
374 }
375 } else {
376 /* NIS key lookup failed: default to
377 * user home directory from password file */
378 DEBUG(5, ("NIS lookup failed. Using Home path from "
379 "passwd file. Home path is: %s\n", server_path ));
380 }
381 }
382#endif
383
384 DEBUG(4,("Home server path: %s\n", server_path));
385 return server_path;
386}
387
388/*******************************************************************
389 Patch from jkf@soton.ac.uk
390 This is Luke's original function with the NIS lookup code
391 moved out to a separate function.
392*******************************************************************/
393
394static const char *automount_server(const char *user_name)
395{
396 TALLOC_CTX *ctx = talloc_tos();
397 const char *server_name;
398 const char *local_machine_name = get_local_machine_name();
399
400 /* use the local machine name as the default */
401 /* this will be the default if WITH_AUTOMOUNT is not used or fails */
402 if (local_machine_name && *local_machine_name) {
403 server_name = talloc_strdup(ctx, local_machine_name);
404 } else {
405 server_name = talloc_strdup(ctx, lp_netbios_name());
406 }
407
408 if (!server_name) {
409 return "";
410 }
411
412#if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
413 if (lp_nis_homedir()) {
414 char *p;
415 char *srv;
416 char *automount_value = automount_lookup(ctx, user_name);
417 if (!automount_value) {
418 return "";
419 }
420 srv = talloc_strdup(ctx, automount_value);
421 if (!srv) {
422 return "";
423 }
424 p = strchr_m(srv, ':');
425 if (!p) {
426 return "";
427 }
428 *p = '\0';
429 server_name = srv;
430 DEBUG(5, ("NIS lookup succeeded. Home server %s\n",
431 server_name));
432 }
433#endif
434
435 DEBUG(4,("Home server: %s\n", server_name));
436 return server_name;
437}
438
439/****************************************************************************
440 Do some standard substitutions in a string.
441 len is the length in bytes of the space allowed in string str. If zero means
442 don't allow expansions.
443****************************************************************************/
444
445void standard_sub_basic(const char *smb_name, const char *domain_name,
446 char *str, size_t len)
447{
448 char *s;
449
450 if ( (s = talloc_sub_basic(talloc_tos(), smb_name, domain_name, str )) != NULL ) {
451 strncpy( str, s, len );
452 }
453
454 TALLOC_FREE( s );
455}
456
457/****************************************************************************
458 Do some standard substitutions in a string.
459 This function will return an talloced string that has to be freed.
460****************************************************************************/
461
462char *talloc_sub_basic(TALLOC_CTX *mem_ctx,
463 const char *smb_name,
464 const char *domain_name,
465 const char *str)
466{
467 char *b, *p, *s, *r, *a_string;
468 fstring pidstr, vnnstr;
469 const char *local_machine_name = get_local_machine_name();
470 TALLOC_CTX *tmp_ctx = NULL;
471
472 /* workaround to prevent a crash while looking at bug #687 */
473
474 if (!str) {
475 DEBUG(0,("talloc_sub_basic: NULL source string! This should not happen\n"));
476 return NULL;
477 }
478
479 a_string = talloc_strdup(mem_ctx, str);
480 if (a_string == NULL) {
481 DEBUG(0, ("talloc_sub_basic: Out of memory!\n"));
482 return NULL;
483 }
484
485 tmp_ctx = talloc_stackframe();
486
487 for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
488
489 r = NULL;
490 b = a_string;
491
492 switch (*(p+1)) {
493 case 'U' :
494 r = strlower_talloc(tmp_ctx, smb_name);
495 if (r == NULL) {
496 goto error;
497 }
498 a_string = realloc_string_sub(a_string, "%U", r);
499 break;
500 case 'G' : {
501 struct passwd *pass;
502 bool is_domain_name = false;
503 const char *sep = lp_winbind_separator();
504
505 if (domain_name != NULL && domain_name[0] != '\0' &&
506 (lp_security() == SEC_ADS ||
507 lp_security() == SEC_DOMAIN)) {
508 r = talloc_asprintf(tmp_ctx,
509 "%s%c%s",
510 domain_name,
511 *sep,
512 smb_name);
513 is_domain_name = true;
514 } else {
515 r = talloc_strdup(tmp_ctx, smb_name);
516 }
517 if (r == NULL) {
518 goto error;
519 }
520
521 pass = Get_Pwnam_alloc(tmp_ctx, r);
522 if (pass != NULL) {
523 char *group_name;
524
525 group_name = gidtoname(pass->pw_gid);
526 if (is_domain_name) {
527 p = strchr_m(group_name, *sep);
528 if (p != NULL) {
529 group_name = p + 1;
530 }
531 }
532 a_string = realloc_string_sub(a_string,
533 "%G",
534 group_name);
535 }
536 TALLOC_FREE(pass);
537 break;
538 }
539 case 'D' :
540 r = strupper_talloc(tmp_ctx, domain_name);
541 if (r == NULL) {
542 goto error;
543 }
544 a_string = realloc_string_sub(a_string, "%D", r);
545 break;
546 case 'I' : {
547 a_string = realloc_string_sub(
548 a_string, "%I",
549 sub_peeraddr[0] ? sub_peeraddr : "0.0.0.0");
550 break;
551 }
552 case 'i':
553 a_string = realloc_string_sub(
554 a_string, "%i",
555 sub_sockaddr[0] ? sub_sockaddr : "0.0.0.0");
556 break;
557 case 'L' :
558 if ( strncasecmp_m(p, "%LOGONSERVER%", strlen("%LOGONSERVER%")) == 0 ) {
559 break;
560 }
561 if (local_machine_name && *local_machine_name) {
562 a_string = realloc_string_sub(a_string, "%L", local_machine_name);
563 } else {
564 a_string = realloc_string_sub(a_string, "%L", lp_netbios_name());
565 }
566 break;
567 case 'N':
568 a_string = realloc_string_sub(a_string, "%N", automount_server(smb_name));
569 break;
570 case 'M' :
571 a_string = realloc_string_sub(a_string, "%M",
572 sub_peername ? sub_peername : "");
573 break;
574 case 'R' :
575 a_string = realloc_string_sub(a_string, "%R", remote_proto);
576 break;
577 case 'T' :
578 a_string = realloc_string_sub(a_string, "%T", current_timestring(tmp_ctx, False));
579 break;
580 case 'a' :
581 a_string = realloc_string_sub(a_string, "%a",
582 get_remote_arch_str());
583 break;
584 case 'd' :
585 slprintf(pidstr,sizeof(pidstr)-1, "%d",(int)getpid());
586 a_string = realloc_string_sub(a_string, "%d", pidstr);
587 break;
588 case 'h' :
589 a_string = realloc_string_sub(a_string, "%h", myhostname());
590 break;
591 case 'm' :
592 a_string = realloc_string_sub(a_string, "%m",
593 remote_machine
594 ? remote_machine
595 : "");
596 break;
597 case 'v' :
598 a_string = realloc_string_sub(a_string, "%v", samba_version_string());
599 break;
600 case 'w' :
601 a_string = realloc_string_sub(a_string, "%w", lp_winbind_separator());
602 break;
603 case '$' :
604 a_string = realloc_expand_env_var(a_string, p); /* Expand environment variables */
605 break;
606 case 'V' :
607 slprintf(vnnstr,sizeof(vnnstr)-1, "%u", get_my_vnn());
608 a_string = realloc_string_sub(a_string, "%V", vnnstr);
609 break;
610 default:
611 break;
612 }
613
614 p++;
615 TALLOC_FREE(r);
616
617 if (a_string == NULL) {
618 goto done;
619 }
620 }
621
622 goto done;
623
624error:
625 TALLOC_FREE(a_string);
626
627done:
628 TALLOC_FREE(tmp_ctx);
629 return a_string;
630}
631
632/****************************************************************************
633 Do some specific substitutions in a string.
634 This function will return an allocated string that have to be freed.
635****************************************************************************/
636
637char *talloc_sub_specified(TALLOC_CTX *mem_ctx,
638 const char *input_string,
639 const char *username,
640 const char *grpname,
641 const char *domain,
642 uid_t uid,
643 gid_t gid)
644{
645 char *a_string;
646 char *ret_string = NULL;
647 char *b, *p, *s;
648 TALLOC_CTX *tmp_ctx;
649
650 if (!(tmp_ctx = talloc_new(mem_ctx))) {
651 DEBUG(0, ("talloc_new failed\n"));
652 return NULL;
653 }
654
655 a_string = talloc_strdup(tmp_ctx, input_string);
656 if (a_string == NULL) {
657 DEBUG(0, ("talloc_sub_specified: Out of memory!\n"));
658 goto done;
659 }
660
661 for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
662
663 b = a_string;
664
665 switch (*(p+1)) {
666 case 'U' :
667 a_string = talloc_string_sub(
668 tmp_ctx, a_string, "%U", username);
669 break;
670 case 'u' :
671 a_string = talloc_string_sub(
672 tmp_ctx, a_string, "%u", username);
673 break;
674 case 'G' :
675 if (gid != -1) {
676 const char *name;
677
678 if (grpname != NULL) {
679 name = grpname;
680 } else {
681 name = gidtoname(gid);
682 }
683
684 a_string = talloc_string_sub(tmp_ctx,
685 a_string,
686 "%G",
687 name);
688 } else {
689 a_string = talloc_string_sub(
690 tmp_ctx, a_string,
691 "%G", "NO_GROUP");
692 }
693 break;
694 case 'g' :
695 if (gid != -1) {
696 const char *name;
697
698 if (grpname != NULL) {
699 name = grpname;
700 } else {
701 name = gidtoname(gid);
702 }
703
704 a_string = talloc_string_sub(tmp_ctx,
705 a_string,
706 "%g",
707 name);
708 } else {
709 a_string = talloc_string_sub(
710 tmp_ctx, a_string, "%g", "NO_GROUP");
711 }
712 break;
713 case 'D' :
714 a_string = talloc_string_sub(tmp_ctx, a_string,
715 "%D", domain);
716 break;
717 case 'N' :
718 a_string = talloc_string_sub(
719 tmp_ctx, a_string, "%N",
720 automount_server(username));
721 break;
722 default:
723 break;
724 }
725
726 p++;
727 if (a_string == NULL) {
728 goto done;
729 }
730 }
731
732 /* Watch out, using "mem_ctx" here, so all intermediate stuff goes
733 * away with the TALLOC_FREE(tmp_ctx) further down. */
734
735 ret_string = talloc_sub_basic(mem_ctx, username, domain, a_string);
736
737 done:
738 TALLOC_FREE(tmp_ctx);
739 return ret_string;
740}
741
742/****************************************************************************
743****************************************************************************/
744
745char *talloc_sub_advanced(TALLOC_CTX *ctx,
746 const char *servicename,
747 const char *user,
748 const char *connectpath,
749 gid_t gid,
750 const char *smb_name,
751 const char *domain_name,
752 const char *str)
753{
754 char *a_string, *ret_string;
755 char *b, *p, *s;
756
757 a_string = talloc_strdup(talloc_tos(), str);
758 if (a_string == NULL) {
759 DEBUG(0, ("talloc_sub_advanced: Out of memory!\n"));
760 return NULL;
761 }
762
763 for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
764
765 b = a_string;
766
767 switch (*(p+1)) {
768 case 'N' :
769 a_string = realloc_string_sub(a_string, "%N", automount_server(user));
770 break;
771 case 'H': {
772 char *h;
773 if ((h = get_user_home_dir(talloc_tos(), user)))
774 a_string = realloc_string_sub(a_string, "%H", h);
775 TALLOC_FREE(h);
776 break;
777 }
778 case 'P':
779 a_string = realloc_string_sub(a_string, "%P", connectpath);
780 break;
781 case 'S':
782 a_string = realloc_string_sub(a_string, "%S", servicename);
783 break;
784 case 'g':
785 a_string = realloc_string_sub(a_string, "%g", gidtoname(gid));
786 break;
787 case 'u':
788 a_string = realloc_string_sub(a_string, "%u", user);
789 break;
790
791 /* Patch from jkf@soton.ac.uk Left the %N (NIS
792 * server name) in standard_sub_basic as it is
793 * a feature for logon servers, hence uses the
794 * username. The %p (NIS server path) code is
795 * here as it is used instead of the default
796 * "path =" string in [homes] and so needs the
797 * service name, not the username. */
798 case 'p':
799 a_string = realloc_string_sub(a_string, "%p",
800 automount_path(servicename));
801 break;
802
803 default:
804 break;
805 }
806
807 p++;
808 if (a_string == NULL) {
809 return NULL;
810 }
811 }
812
813 ret_string = talloc_sub_basic(ctx, smb_name, domain_name, a_string);
814 TALLOC_FREE(a_string);
815 return ret_string;
816}
817
818void standard_sub_advanced(const char *servicename, const char *user,
819 const char *connectpath, gid_t gid,
820 const char *smb_name, const char *domain_name,
821 char *str, size_t len)
822{
823 char *s = talloc_sub_advanced(talloc_tos(),
824 servicename, user, connectpath,
825 gid, smb_name, domain_name, str);
826
827 if (!s) {
828 return;
829 }
830 strlcpy( str, s, len );
831 TALLOC_FREE( s );
832}
833
834/******************************************************************************
835 version of standard_sub_basic() for string lists; uses talloc_sub_basic()
836 for the work
837 *****************************************************************************/
838
839bool str_list_sub_basic( char **list, const char *smb_name,
840 const char *domain_name )
841{
842 TALLOC_CTX *ctx = list;
843 char *s, *tmpstr;
844
845 while ( *list ) {
846 s = *list;
847 tmpstr = talloc_sub_basic(ctx, smb_name, domain_name, s);
848 if ( !tmpstr ) {
849 DEBUG(0,("str_list_sub_basic: "
850 "talloc_sub_basic() return NULL!\n"));
851 return false;
852 }
853
854 TALLOC_FREE(*list);
855 *list = tmpstr;
856
857 list++;
858 }
859
860 return true;
861}
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