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
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.
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.
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/>.
25 #include "popt_common.h"
27 #include "ctdbd_conn.h"
29 /* Max allowable allococation - 256mb - 0x10000000 */
30 #define MAX_ALLOC_SIZE (1024*1024*256)
32 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
33 #ifdef WITH_NISPLUS_HOME
34 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
36 * The following lines are needed due to buggy include files
37 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
38 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
39 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
40 * an enum in /usr/include/rpcsvc/nis.h.
47 #if defined(GROUP_OBJ)
51 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
53 #include <rpcsvc/nis.h>
55 #endif /* WITH_NISPLUS_HOME */
56 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
58 static enum protocol_types Protocol = PROTOCOL_COREPLUS;
60 enum protocol_types get_Protocol(void)
65 void set_Protocol(enum protocol_types p)
70 static enum remote_arch_types ra_type = RA_UNKNOWN;
72 /***********************************************************************
73 Definitions for all names.
74 ***********************************************************************/
76 static char *smb_scope;
77 static int smb_num_netbios_names;
78 static char **smb_my_netbios_names;
80 /***********************************************************************
81 Allocate and set scope. Ensure upper case.
82 ***********************************************************************/
84 bool set_global_scope(const char *scope)
87 smb_scope = SMB_STRDUP(scope);
90 strupper_m(smb_scope);
94 /*********************************************************************
95 Ensure scope is never null string.
96 *********************************************************************/
98 const char *global_scope(void)
101 set_global_scope("");
105 static void free_netbios_names_array(void)
109 for (i = 0; i < smb_num_netbios_names; i++)
110 SAFE_FREE(smb_my_netbios_names[i]);
112 SAFE_FREE(smb_my_netbios_names);
113 smb_num_netbios_names = 0;
116 static bool allocate_my_netbios_names_array(size_t number)
118 free_netbios_names_array();
120 smb_num_netbios_names = number + 1;
121 smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
123 if (!smb_my_netbios_names)
126 memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
130 static bool set_my_netbios_names(const char *name, int i)
132 SAFE_FREE(smb_my_netbios_names[i]);
134 smb_my_netbios_names[i] = SMB_STRDUP(name);
135 if (!smb_my_netbios_names[i])
137 strupper_m(smb_my_netbios_names[i]);
141 /***********************************************************************
142 Free memory allocated to global objects
143 ***********************************************************************/
145 void gfree_names(void)
147 gfree_netbios_names();
148 SAFE_FREE( smb_scope );
149 free_netbios_names_array();
150 free_local_machine_name();
153 void gfree_all( void )
163 const char *my_netbios_names(int i)
165 return smb_my_netbios_names[i];
168 bool set_netbios_aliases(const char **str_array)
172 /* Work out the max number of netbios aliases that we have */
173 for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
176 if ( global_myname() && *global_myname())
179 /* Allocate space for the netbios aliases */
180 if (!allocate_my_netbios_names_array(namecount))
183 /* Use the global_myname string first */
185 if ( global_myname() && *global_myname()) {
186 set_my_netbios_names( global_myname(), namecount );
192 for ( i = 0; str_array[i] != NULL; i++) {
194 bool duplicate = False;
196 /* Look for duplicates */
197 for( n=0; n<namecount; n++ ) {
198 if( strequal( str_array[i], my_netbios_names(n) ) ) {
204 if (!set_my_netbios_names(str_array[i], namecount))
213 /****************************************************************************
214 Common name initialization code.
215 ****************************************************************************/
217 bool init_names(void)
221 if (global_myname() == NULL || *global_myname() == '\0') {
222 if (!set_global_myname(myhostname())) {
223 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
228 if (!set_netbios_aliases(lp_netbios_aliases())) {
229 DEBUG( 0, ( "init_names: malloc fail.\n" ) );
233 set_local_machine_name(global_myname(),false);
235 DEBUG( 5, ("Netbios name list:-\n") );
236 for( n=0; my_netbios_names(n); n++ ) {
237 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
238 n, my_netbios_names(n) ) );
244 /**************************************************************************n
245 Code to cope with username/password auth options from the commandline.
246 Used mainly in client tools.
247 ****************************************************************************/
249 struct user_auth_info *user_auth_info_init(TALLOC_CTX *mem_ctx)
251 struct user_auth_info *result;
253 result = TALLOC_ZERO_P(mem_ctx, struct user_auth_info);
254 if (result == NULL) {
258 result->signing_state = Undefined;
262 const char *get_cmdline_auth_info_username(const struct user_auth_info *auth_info)
264 if (!auth_info->username) {
267 return auth_info->username;
270 void set_cmdline_auth_info_username(struct user_auth_info *auth_info,
271 const char *username)
273 TALLOC_FREE(auth_info->username);
274 auth_info->username = talloc_strdup(auth_info, username);
275 if (!auth_info->username) {
280 const char *get_cmdline_auth_info_domain(const struct user_auth_info *auth_info)
282 if (!auth_info->domain) {
285 return auth_info->domain;
288 void set_cmdline_auth_info_domain(struct user_auth_info *auth_info,
291 TALLOC_FREE(auth_info->domain);
292 auth_info->domain = talloc_strdup(auth_info, domain);
293 if (!auth_info->domain) {
298 const char *get_cmdline_auth_info_password(const struct user_auth_info *auth_info)
300 if (!auth_info->password) {
303 return auth_info->password;
306 void set_cmdline_auth_info_password(struct user_auth_info *auth_info,
307 const char *password)
309 TALLOC_FREE(auth_info->password);
310 if (password == NULL) {
313 auth_info->password = talloc_strdup(auth_info, password);
314 if (!auth_info->password) {
317 auth_info->got_pass = true;
320 bool set_cmdline_auth_info_signing_state(struct user_auth_info *auth_info,
323 auth_info->signing_state = -1;
324 if (strequal(arg, "off") || strequal(arg, "no") ||
325 strequal(arg, "false")) {
326 auth_info->signing_state = false;
327 } else if (strequal(arg, "on") || strequal(arg, "yes") ||
328 strequal(arg, "true") || strequal(arg, "auto")) {
329 auth_info->signing_state = true;
330 } else if (strequal(arg, "force") || strequal(arg, "required") ||
331 strequal(arg, "forced")) {
332 auth_info->signing_state = Required;
339 int get_cmdline_auth_info_signing_state(const struct user_auth_info *auth_info)
341 return auth_info->signing_state;
344 void set_cmdline_auth_info_use_ccache(struct user_auth_info *auth_info, bool b)
346 auth_info->use_ccache = b;
349 bool get_cmdline_auth_info_use_ccache(const struct user_auth_info *auth_info)
351 return auth_info->use_ccache;
354 void set_cmdline_auth_info_use_kerberos(struct user_auth_info *auth_info,
357 auth_info->use_kerberos = b;
360 bool get_cmdline_auth_info_use_kerberos(const struct user_auth_info *auth_info)
362 return auth_info->use_kerberos;
365 void set_cmdline_auth_info_fallback_after_kerberos(struct user_auth_info *auth_info,
368 auth_info->fallback_after_kerberos = b;
371 bool get_cmdline_auth_info_fallback_after_kerberos(const struct user_auth_info *auth_info)
373 return auth_info->fallback_after_kerberos;
376 /* This should only be used by lib/popt_common.c JRA */
377 void set_cmdline_auth_info_use_krb5_ticket(struct user_auth_info *auth_info)
379 auth_info->use_kerberos = true;
380 auth_info->got_pass = true;
383 /* This should only be used by lib/popt_common.c JRA */
384 void set_cmdline_auth_info_smb_encrypt(struct user_auth_info *auth_info)
386 auth_info->smb_encrypt = true;
389 void set_cmdline_auth_info_use_machine_account(struct user_auth_info *auth_info)
391 auth_info->use_machine_account = true;
394 bool get_cmdline_auth_info_got_pass(const struct user_auth_info *auth_info)
396 return auth_info->got_pass;
399 bool get_cmdline_auth_info_smb_encrypt(const struct user_auth_info *auth_info)
401 return auth_info->smb_encrypt;
404 bool get_cmdline_auth_info_use_machine_account(const struct user_auth_info *auth_info)
406 return auth_info->use_machine_account;
409 struct user_auth_info *get_cmdline_auth_info_copy(TALLOC_CTX *mem_ctx,
410 const struct user_auth_info *src)
412 struct user_auth_info *result;
414 result = user_auth_info_init(mem_ctx);
415 if (result == NULL) {
421 result->username = talloc_strdup(
422 result, get_cmdline_auth_info_username(src));
423 result->password = talloc_strdup(
424 result, get_cmdline_auth_info_password(src));
425 if ((result->username == NULL) || (result->password == NULL)) {
433 bool set_cmdline_auth_info_machine_account_creds(struct user_auth_info *auth_info)
436 char *account = NULL;
438 if (!get_cmdline_auth_info_use_machine_account(auth_info)) {
442 if (!secrets_init()) {
443 d_printf("ERROR: Unable to open secrets database\n");
447 if (asprintf(&account, "%s$@%s", global_myname(), lp_realm()) < 0) {
451 pass = secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
453 d_printf("ERROR: Unable to fetch machine password for "
455 account, lp_workgroup());
460 set_cmdline_auth_info_username(auth_info, account);
461 set_cmdline_auth_info_password(auth_info, pass);
469 /****************************************************************************
470 Ensure we have a password if one not given.
471 ****************************************************************************/
473 void set_cmdline_auth_info_getpass(struct user_auth_info *auth_info)
479 if (get_cmdline_auth_info_got_pass(auth_info) ||
480 get_cmdline_auth_info_use_kerberos(auth_info)) {
481 /* Already got one... */
485 frame = talloc_stackframe();
486 label = talloc_asprintf(frame, "Enter %s's password: ",
487 get_cmdline_auth_info_username(auth_info));
488 pass = getpass(label);
490 set_cmdline_auth_info_password(auth_info, pass);
495 /*******************************************************************
496 Check if a file exists - call vfs_file_exist for samba files.
497 ********************************************************************/
499 bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
500 bool fake_dir_create_times)
506 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
509 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
512 /*******************************************************************
513 Check if a unix domain socket exists - call vfs_file_exist for samba files.
514 ********************************************************************/
516 bool socket_exist(const char *fname)
519 if (sys_stat(fname, &st, false) != 0)
522 return S_ISSOCK(st.st_ex_mode);
525 /*******************************************************************
526 Returns the size in bytes of the named given the stat struct.
527 ********************************************************************/
529 uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
531 return sbuf->st_ex_size;
534 /*******************************************************************
535 Returns the size in bytes of the named file.
536 ********************************************************************/
538 SMB_OFF_T get_file_size(char *file_name)
542 if (sys_stat(file_name, &buf, false) != 0)
543 return (SMB_OFF_T)-1;
544 return get_file_size_stat(&buf);
547 /*******************************************************************
548 Return a string representing an attribute for a file.
549 ********************************************************************/
551 char *attrib_string(uint16 mode)
557 if (mode & aVOLID) fstrcat(attrstr,"V");
558 if (mode & aDIR) fstrcat(attrstr,"D");
559 if (mode & aARCH) fstrcat(attrstr,"A");
560 if (mode & aHIDDEN) fstrcat(attrstr,"H");
561 if (mode & aSYSTEM) fstrcat(attrstr,"S");
562 if (mode & aRONLY) fstrcat(attrstr,"R");
564 return talloc_strdup(talloc_tos(), attrstr);
567 /*******************************************************************
568 Show a smb message structure.
569 ********************************************************************/
571 void show_msg(char *buf)
579 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
581 (int)CVAL(buf,smb_com),
582 (int)CVAL(buf,smb_rcls),
583 (int)CVAL(buf,smb_reh),
584 (int)SVAL(buf,smb_err),
585 (int)CVAL(buf,smb_flg),
586 (int)SVAL(buf,smb_flg2)));
587 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
588 (int)SVAL(buf,smb_tid),
589 (int)SVAL(buf,smb_pid),
590 (int)SVAL(buf,smb_uid),
591 (int)SVAL(buf,smb_mid)));
592 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
594 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
595 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
596 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
598 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
600 DEBUGADD(5,("smb_bcc=%d\n",bcc));
608 dump_data(10, (uint8 *)smb_buf(buf), bcc);
611 /*******************************************************************
612 Set the length and marker of an encrypted smb packet.
613 ********************************************************************/
615 void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num)
617 _smb_setlen(buf,len);
621 SSVAL(buf,6,enc_ctx_num);
624 /*******************************************************************
625 Set the length and marker of an smb packet.
626 ********************************************************************/
628 void smb_setlen(char *buf,int len)
630 _smb_setlen(buf,len);
638 /*******************************************************************
639 Setup only the byte count for a smb message.
640 ********************************************************************/
642 int set_message_bcc(char *buf,int num_bytes)
644 int num_words = CVAL(buf,smb_wct);
645 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
646 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
647 return (smb_size + num_words*2 + num_bytes);
650 /*******************************************************************
651 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
652 Return the bytes added
653 ********************************************************************/
655 ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob)
657 size_t newlen = smb_len(*outbuf) + 4 + blob.length;
660 if (!(tmp = TALLOC_REALLOC_ARRAY(NULL, *outbuf, uint8, newlen))) {
661 DEBUG(0, ("talloc failed\n"));
666 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
667 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
671 /*******************************************************************
672 Reduce a file name, removing .. elements.
673 ********************************************************************/
675 static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
680 DEBUG(3,("dos_clean_name [%s]\n",s));
682 /* remove any double slashes */
683 str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
688 /* Remove leading .\\ characters */
689 if(strncmp(str, ".\\", 2) == 0) {
690 trim_string(str, ".\\", NULL);
692 str = talloc_strdup(ctx, ".\\");
699 while ((p = strstr_m(str,"\\..\\")) != NULL) {
705 if ((p=strrchr_m(str,'\\')) != NULL) {
710 str = talloc_asprintf(ctx,
719 trim_string(str,NULL,"\\..");
720 return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
723 /*******************************************************************
724 Reduce a file name, removing .. elements.
725 ********************************************************************/
727 char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
732 DEBUG(3,("unix_clean_name [%s]\n",s));
734 /* remove any double slashes */
735 str = talloc_all_string_sub(ctx, s, "//","/");
740 /* Remove leading ./ characters */
741 if(strncmp(str, "./", 2) == 0) {
742 trim_string(str, "./", NULL);
744 str = talloc_strdup(ctx, "./");
751 while ((p = strstr_m(str,"/../")) != NULL) {
757 if ((p=strrchr_m(str,'/')) != NULL) {
762 str = talloc_asprintf(ctx,
771 trim_string(str,NULL,"/..");
772 return talloc_all_string_sub(ctx, str, "/./", "/");
775 char *clean_name(TALLOC_CTX *ctx, const char *s)
777 char *str = dos_clean_name(ctx, s);
781 return unix_clean_name(ctx, str);
784 /*******************************************************************
785 Write data into an fd at a given offset. Ignore seek errors.
786 ********************************************************************/
788 ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos)
793 if (pos == (SMB_OFF_T)-1) {
794 return write_data(fd, buffer, N);
796 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
798 ret = sys_pwrite(fd,buffer + total,N - total, pos);
799 if (ret == -1 && errno == ESPIPE) {
800 return write_data(fd, buffer + total,N - total);
803 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
812 return (ssize_t)total;
814 /* Use lseek and write_data. */
815 if (sys_lseek(fd, pos, SEEK_SET) == -1) {
816 if (errno != ESPIPE) {
820 return write_data(fd, buffer, N);
825 NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
826 struct event_context *ev_ctx,
828 bool parent_longlived)
830 NTSTATUS status = NT_STATUS_OK;
832 /* Reset the state of the random
833 * number generation system, so
834 * children do not get the same random
835 * numbers as each other */
836 set_need_random_reseed();
838 /* tdb needs special fork handling */
839 if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) {
840 DEBUG(0,("tdb_reopen_all failed.\n"));
841 status = NT_STATUS_OPEN_FAILED;
845 if (ev_ctx && tevent_re_initialise(ev_ctx) != 0) {
846 smb_panic(__location__ ": Failed to re-initialise event context");
851 * For clustering, we need to re-init our ctdbd connection after the
854 status = messaging_reinit(msg_ctx, id);
855 if (!NT_STATUS_IS_OK(status)) {
856 DEBUG(0,("messaging_reinit() failed: %s\n",
864 #if defined(PARANOID_MALLOC_CHECKER)
866 /****************************************************************************
867 Internal malloc wrapper. Externally visible.
868 ****************************************************************************/
870 void *malloc_(size_t size)
877 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
880 /****************************************************************************
881 Internal calloc wrapper. Not externally visible.
882 ****************************************************************************/
884 static void *calloc_(size_t count, size_t size)
886 if (size == 0 || count == 0) {
890 return calloc(count, size);
891 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
894 /****************************************************************************
895 Internal realloc wrapper. Not externally visible.
896 ****************************************************************************/
898 static void *realloc_(void *ptr, size_t size)
901 return realloc(ptr, size);
902 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
905 #endif /* PARANOID_MALLOC_CHECKER */
907 /****************************************************************************
909 ****************************************************************************/
911 void *memalign_array(size_t el_size, size_t align, unsigned int count)
913 if (count >= MAX_ALLOC_SIZE/el_size) {
917 return sys_memalign(align, el_size*count);
920 /****************************************************************************
922 ****************************************************************************/
924 void *calloc_array(size_t size, size_t nmemb)
926 if (nmemb >= MAX_ALLOC_SIZE/size) {
929 if (size == 0 || nmemb == 0) {
932 #if defined(PARANOID_MALLOC_CHECKER)
933 return calloc_(nmemb, size);
935 return calloc(nmemb, size);
939 /****************************************************************************
940 Expand a pointer to be a particular size.
941 Note that this version of Realloc has an extra parameter that decides
942 whether to free the passed in storage on allocation failure or if the
945 This is designed for use in the typical idiom of :
947 p = SMB_REALLOC(p, size)
952 and not to have to keep track of the old 'p' contents to free later, nor
953 to worry if the size parameter was zero. In the case where NULL is returned
954 we guarentee that p has been freed.
956 If free later semantics are desired, then pass 'free_old_on_error' as False which
957 guarentees that the old contents are not freed on error, even if size == 0. To use
960 tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
968 Changes were instigated by Coverity error checking. JRA.
969 ****************************************************************************/
971 void *Realloc(void *p, size_t size, bool free_old_on_error)
976 if (free_old_on_error) {
979 DEBUG(2,("Realloc asked for 0 bytes\n"));
983 #if defined(PARANOID_MALLOC_CHECKER)
985 ret = (void *)malloc_(size);
987 ret = (void *)realloc_(p,size);
991 ret = (void *)malloc(size);
993 ret = (void *)realloc(p,size);
998 if (free_old_on_error && p) {
1001 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
1007 /****************************************************************************
1008 (Hopefully) efficient array append.
1009 ****************************************************************************/
1011 void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
1012 void *element, void *_array, uint32 *num_elements,
1013 ssize_t *array_size)
1015 void **array = (void **)_array;
1017 if (*array_size < 0) {
1021 if (*array == NULL) {
1022 if (*array_size == 0) {
1026 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1030 *array = TALLOC(mem_ctx, element_size * (*array_size));
1031 if (*array == NULL) {
1036 if (*num_elements == *array_size) {
1039 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
1043 *array = TALLOC_REALLOC(mem_ctx, *array,
1044 element_size * (*array_size));
1046 if (*array == NULL) {
1051 memcpy((char *)(*array) + element_size*(*num_elements),
1052 element, element_size);
1062 /****************************************************************************
1063 Get my own domain name, or "" if we have none.
1064 ****************************************************************************/
1066 char *get_mydnsdomname(TALLOC_CTX *ctx)
1068 const char *domname;
1071 domname = get_mydnsfullname();
1076 p = strchr_m(domname, '.');
1079 return talloc_strdup(ctx, p);
1081 return talloc_strdup(ctx, "");
1085 /****************************************************************************
1086 Interpret a protocol description string, with a default.
1087 ****************************************************************************/
1089 int interpret_protocol(const char *str,int def)
1091 if (strequal(str,"NT1"))
1092 return(PROTOCOL_NT1);
1093 if (strequal(str,"LANMAN2"))
1094 return(PROTOCOL_LANMAN2);
1095 if (strequal(str,"LANMAN1"))
1096 return(PROTOCOL_LANMAN1);
1097 if (strequal(str,"CORE"))
1098 return(PROTOCOL_CORE);
1099 if (strequal(str,"COREPLUS"))
1100 return(PROTOCOL_COREPLUS);
1101 if (strequal(str,"CORE+"))
1102 return(PROTOCOL_COREPLUS);
1104 DEBUG(0,("Unrecognised protocol level %s\n",str));
1110 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1111 /******************************************************************
1112 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1113 Based on a fix from <Thomas.Hepper@icem.de>.
1114 Returns a malloc'ed string.
1115 *******************************************************************/
1117 static char *strip_mount_options(TALLOC_CTX *ctx, const char *str)
1120 const char *p = str;
1121 while(*p && !isspace(*p))
1123 while(*p && isspace(*p))
1126 return talloc_strdup(ctx, p);
1132 /*******************************************************************
1133 Patch from jkf@soton.ac.uk
1134 Split Luke's automount_server into YP lookup and string splitter
1135 so can easily implement automount_path().
1136 Returns a malloc'ed string.
1137 *******************************************************************/
1139 #ifdef WITH_NISPLUS_HOME
1140 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1144 char *nis_map = (char *)lp_nis_home_map_name();
1146 char buffer[NIS_MAXATTRVAL + 1];
1151 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map);
1152 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
1154 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
1155 if (result->status != NIS_SUCCESS) {
1156 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
1158 object = result->objects.objects_val;
1159 if (object->zo_data.zo_type == ENTRY_OBJ) {
1160 entry = &object->zo_data.objdata_u.en_data;
1161 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
1162 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
1164 value = talloc_strdup(ctx,
1165 entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
1167 nis_freeresult(result);
1170 value = talloc_string_sub(ctx,
1177 nis_freeresult(result);
1180 value = strip_mount_options(ctx, value);
1181 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
1186 #else /* WITH_NISPLUS_HOME */
1188 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
1192 int nis_error; /* returned by yp all functions */
1193 char *nis_result; /* yp_match inits this */
1194 int nis_result_len; /* and set this */
1195 char *nis_domain; /* yp_get_default_domain inits this */
1196 char *nis_map = (char *)lp_nis_home_map_name();
1198 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
1199 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
1203 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
1205 if ((nis_error = yp_match(nis_domain, nis_map, user_name,
1206 strlen(user_name), &nis_result,
1207 &nis_result_len)) == 0) {
1208 if (nis_result_len > 0 && nis_result[nis_result_len] == '\n') {
1209 nis_result[nis_result_len] = '\0';
1211 value = talloc_strdup(ctx, nis_result);
1215 value = strip_mount_options(ctx, value);
1216 } else if(nis_error == YPERR_KEY) {
1217 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1218 user_name, nis_map));
1219 DEBUG(3, ("using defaults for server and home directory\n"));
1221 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1222 yperr_string(nis_error), user_name, nis_map));
1226 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value));
1230 #endif /* WITH_NISPLUS_HOME */
1233 /****************************************************************************
1234 Check if a process exists. Does this work on all unixes?
1235 ****************************************************************************/
1237 bool process_exists(const struct server_id pid)
1239 if (procid_is_me(&pid)) {
1243 if (procid_is_local(&pid)) {
1244 return (kill(pid.pid,0) == 0 || errno != ESRCH);
1247 #ifdef CLUSTER_SUPPORT
1248 return ctdbd_process_exists(messaging_ctdbd_connection(),
1255 /*******************************************************************
1256 Convert a uid into a user name.
1257 ********************************************************************/
1259 const char *uidtoname(uid_t uid)
1261 TALLOC_CTX *ctx = talloc_tos();
1263 struct passwd *pass = NULL;
1265 pass = getpwuid_alloc(ctx,uid);
1267 name = talloc_strdup(ctx,pass->pw_name);
1270 name = talloc_asprintf(ctx,
1277 /*******************************************************************
1278 Convert a gid into a group name.
1279 ********************************************************************/
1281 char *gidtoname(gid_t gid)
1285 grp = getgrgid(gid);
1287 return talloc_strdup(talloc_tos(), grp->gr_name);
1290 return talloc_asprintf(talloc_tos(),
1296 /*******************************************************************
1297 Convert a user name into a uid.
1298 ********************************************************************/
1300 uid_t nametouid(const char *name)
1302 struct passwd *pass;
1306 pass = Get_Pwnam_alloc(talloc_tos(), name);
1313 u = (uid_t)strtol(name, &p, 0);
1314 if ((p != name) && (*p == '\0'))
1320 /*******************************************************************
1321 Convert a name to a gid_t if possible. Return -1 if not a group.
1322 ********************************************************************/
1324 gid_t nametogid(const char *name)
1330 g = (gid_t)strtol(name, &p, 0);
1331 if ((p != name) && (*p == '\0'))
1334 grp = sys_getgrnam(name);
1336 return(grp->gr_gid);
1340 /*******************************************************************
1341 Something really nasty happened - panic !
1342 ********************************************************************/
1344 void smb_panic_s3(const char *why)
1349 DEBUG(0,("PANIC (pid %llu): %s\n",
1350 (unsigned long long)sys_getpid(), why));
1353 cmd = lp_panic_action();
1355 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
1356 result = system(cmd);
1359 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1362 DEBUG(0, ("smb_panic(): action returned status %d\n",
1363 WEXITSTATUS(result)));
1369 /*******************************************************************
1370 Print a backtrace of the stack to the debug log. This function
1371 DELIBERATELY LEAKS MEMORY. The expectation is that you should
1372 exit shortly after calling it.
1373 ********************************************************************/
1375 #ifdef HAVE_LIBUNWIND_H
1376 #include <libunwind.h>
1379 #ifdef HAVE_EXECINFO_H
1380 #include <execinfo.h>
1383 #ifdef HAVE_LIBEXC_H
1387 void log_stack_trace(void)
1389 #ifdef HAVE_LIBUNWIND
1390 /* Try to use libunwind before any other technique since on ia64
1391 * libunwind correctly walks the stack in more circumstances than
1394 unw_cursor_t cursor;
1399 unw_word_t ip, sp, off;
1401 procname[sizeof(procname) - 1] = '\0';
1403 if (unw_getcontext(&uc) != 0) {
1404 goto libunwind_failed;
1407 if (unw_init_local(&cursor, &uc) != 0) {
1408 goto libunwind_failed;
1411 DEBUG(0, ("BACKTRACE:\n"));
1415 unw_get_reg(&cursor, UNW_REG_IP, &ip);
1416 unw_get_reg(&cursor, UNW_REG_SP, &sp);
1418 switch (unw_get_proc_name(&cursor,
1419 procname, sizeof(procname) - 1, &off) ) {
1423 /* Name truncated. */
1424 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
1425 i, procname, (long long)off,
1426 (long long)ip, (long long) sp));
1429 /* case -UNW_ENOINFO: */
1430 /* case -UNW_EUNSPEC: */
1431 /* No symbol name found. */
1432 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
1433 i, "<unknown symbol>",
1434 (long long)ip, (long long) sp));
1437 } while (unw_step(&cursor) > 0);
1442 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
1444 #elif HAVE_BACKTRACE_SYMBOLS
1445 void *backtrace_stack[BACKTRACE_STACK_SIZE];
1446 size_t backtrace_size;
1447 char **backtrace_strings;
1449 /* get the backtrace (stack frames) */
1450 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
1451 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
1453 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1454 (unsigned long)backtrace_size));
1456 if (backtrace_strings) {
1459 for (i = 0; i < backtrace_size; i++)
1460 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
1462 /* Leak the backtrace_strings, rather than risk what free() might do */
1467 /* The IRIX libexc library provides an API for unwinding the stack. See
1468 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1469 * since we are about to abort anyway, it hardly matters.
1472 #define NAMESIZE 32 /* Arbitrary */
1474 __uint64_t addrs[BACKTRACE_STACK_SIZE];
1475 char * names[BACKTRACE_STACK_SIZE];
1476 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
1483 ZERO_ARRAY(namebuf);
1485 /* We need to be root so we can open our /proc entry to walk
1486 * our stack. It also helps when we want to dump core.
1490 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
1491 names[i] = namebuf + (i * NAMESIZE);
1494 levels = trace_back_stack(0, addrs, names,
1495 BACKTRACE_STACK_SIZE, NAMESIZE - 1);
1497 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
1498 for (i = 0; i < levels; i++) {
1499 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
1504 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
1508 /*******************************************************************
1509 A readdir wrapper which just returns the file name.
1510 ********************************************************************/
1512 const char *readdirname(SMB_STRUCT_DIR *p)
1514 SMB_STRUCT_DIRENT *ptr;
1520 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1524 dname = ptr->d_name;
1531 #ifdef HAVE_BROKEN_READDIR_NAME
1532 /* using /usr/ucb/cc is BAD */
1536 return talloc_strdup(talloc_tos(), dname);
1539 /*******************************************************************
1540 Utility function used to decide if the last component
1541 of a path matches a (possibly wildcarded) entry in a namelist.
1542 ********************************************************************/
1544 bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
1546 const char *last_component;
1548 /* if we have no list it's obviously not in the path */
1549 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
1553 DEBUG(8, ("is_in_path: %s\n", name));
1555 /* Get the last component of the unix name. */
1556 last_component = strrchr_m(name, '/');
1557 if (!last_component) {
1558 last_component = name;
1560 last_component++; /* Go past '/' */
1563 for(; namelist->name != NULL; namelist++) {
1564 if(namelist->is_wild) {
1565 if (mask_match(last_component, namelist->name, case_sensitive)) {
1566 DEBUG(8,("is_in_path: mask match succeeded\n"));
1570 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1571 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
1572 DEBUG(8,("is_in_path: match succeeded\n"));
1577 DEBUG(8,("is_in_path: match not found\n"));
1581 /*******************************************************************
1582 Strip a '/' separated list into an array of
1583 name_compare_enties structures suitable for
1584 passing to is_in_path(). We do this for
1585 speed so we can pre-parse all the names in the list
1586 and don't do it for each call to is_in_path().
1587 namelist is modified here and is assumed to be
1588 a copy owned by the caller.
1589 We also check if the entry contains a wildcard to
1590 remove a potentially expensive call to mask_match
1592 ********************************************************************/
1594 void set_namearray(name_compare_entry **ppname_array, const char *namelist)
1597 char *nameptr = (char *)namelist;
1598 int num_entries = 0;
1601 (*ppname_array) = NULL;
1603 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1606 /* We need to make two passes over the string. The
1607 first to count the number of elements, the second
1612 if ( *nameptr == '/' ) {
1613 /* cope with multiple (useless) /s) */
1617 /* anything left? */
1618 if ( *nameptr == '\0' )
1621 /* find the next '/' or consume remaining */
1622 name_end = strchr_m(nameptr, '/');
1623 if (name_end == NULL)
1624 name_end = (char *)nameptr + strlen(nameptr);
1626 /* next segment please */
1627 nameptr = name_end + 1;
1631 if(num_entries == 0)
1634 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1635 DEBUG(0,("set_namearray: malloc fail\n"));
1639 /* Now copy out the names */
1640 nameptr = (char *)namelist;
1643 if ( *nameptr == '/' ) {
1644 /* cope with multiple (useless) /s) */
1648 /* anything left? */
1649 if ( *nameptr == '\0' )
1652 /* find the next '/' or consume remaining */
1653 name_end = strchr_m(nameptr, '/');
1657 name_end = nameptr + strlen(nameptr);
1659 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1660 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1661 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1665 /* next segment please */
1666 nameptr = name_end + 1;
1670 (*ppname_array)[i].name = NULL;
1675 /****************************************************************************
1676 Routine to free a namearray.
1677 ****************************************************************************/
1679 void free_namearray(name_compare_entry *name_array)
1683 if(name_array == NULL)
1686 for(i=0; name_array[i].name!=NULL; i++)
1687 SAFE_FREE(name_array[i].name);
1688 SAFE_FREE(name_array);
1692 #define DBGC_CLASS DBGC_LOCKING
1694 /****************************************************************************
1695 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
1696 is dealt with in posix.c
1697 Returns True if we have information regarding this lock region (and returns
1698 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
1699 ****************************************************************************/
1701 bool fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
1703 SMB_STRUCT_FLOCK lock;
1706 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
1707 fd,(double)*poffset,(double)*pcount,*ptype));
1709 lock.l_type = *ptype;
1710 lock.l_whence = SEEK_SET;
1711 lock.l_start = *poffset;
1712 lock.l_len = *pcount;
1715 ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock);
1719 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
1720 (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
1725 *ptype = lock.l_type;
1726 *poffset = lock.l_start;
1727 *pcount = lock.l_len;
1730 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
1731 fd, (int)lock.l_type, (unsigned int)lock.l_pid));
1736 #define DBGC_CLASS DBGC_ALL
1738 /*******************************************************************
1739 Is the name specified one of my netbios names.
1740 Returns true if it is equal, false otherwise.
1741 ********************************************************************/
1743 bool is_myname(const char *s)
1748 for (n=0; my_netbios_names(n); n++) {
1749 if (strequal(my_netbios_names(n), s)) {
1754 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1758 /*******************************************************************
1759 Is the name specified our workgroup/domain.
1760 Returns true if it is equal, false otherwise.
1761 ********************************************************************/
1763 bool is_myworkgroup(const char *s)
1767 if (strequal(s, lp_workgroup())) {
1771 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1775 /*******************************************************************
1776 we distinguish between 2K and XP by the "Native Lan Manager" string
1777 WinXP => "Windows 2002 5.1"
1778 WinXP 64bit => "Windows XP 5.2"
1779 Win2k => "Windows 2000 5.0"
1780 NT4 => "Windows NT 4.0"
1781 Win9x => "Windows 4.0"
1782 Windows 2003 doesn't set the native lan manager string but
1783 they do set the domain to "Windows 2003 5.2" (probably a bug).
1784 ********************************************************************/
1786 void ra_lanman_string( const char *native_lanman )
1788 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1789 set_remote_arch( RA_WINXP );
1790 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1791 set_remote_arch( RA_WINXP64 );
1792 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1793 set_remote_arch( RA_WIN2K3 );
1796 static const char *remote_arch_str;
1798 const char *get_remote_arch_str(void)
1800 if (!remote_arch_str) {
1803 return remote_arch_str;
1806 /*******************************************************************
1807 Set the horrid remote_arch string based on an enum.
1808 ********************************************************************/
1810 void set_remote_arch(enum remote_arch_types type)
1815 remote_arch_str = "WfWg";
1818 remote_arch_str = "OS2";
1821 remote_arch_str = "Win95";
1824 remote_arch_str = "WinNT";
1827 remote_arch_str = "Win2K";
1830 remote_arch_str = "WinXP";
1833 remote_arch_str = "WinXP64";
1836 remote_arch_str = "Win2K3";
1839 remote_arch_str = "Vista";
1842 remote_arch_str = "Samba";
1845 remote_arch_str = "CIFSFS";
1848 remote_arch_str = "OSX";
1851 ra_type = RA_UNKNOWN;
1852 remote_arch_str = "UNKNOWN";
1856 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1860 /*******************************************************************
1861 Get the remote_arch type.
1862 ********************************************************************/
1864 enum remote_arch_types get_remote_arch(void)
1869 const char *tab_depth(int level, int depth)
1871 if( CHECK_DEBUGLVL(level) ) {
1872 dbgtext("%*s", depth*4, "");
1877 /*****************************************************************************
1878 Provide a checksum on a string
1880 Input: s - the null-terminated character string for which the checksum
1883 Output: The checksum value calculated for s.
1884 *****************************************************************************/
1886 int str_checksum(const char *s)
1888 TDB_DATA key = string_tdb_data(s);
1889 return tdb_jenkins_hash(&key);
1892 /*****************************************************************
1893 Zero a memory area then free it. Used to catch bugs faster.
1894 *****************************************************************/
1896 void zero_free(void *p, size_t size)
1902 /*****************************************************************
1903 Set our open file limit to a requested max and return the limit.
1904 *****************************************************************/
1906 int set_maxfiles(int requested_max)
1908 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1910 int saved_current_limit;
1912 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1913 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1916 return requested_max;
1920 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1921 * account for the extra fd we need
1922 * as well as the log files and standard
1923 * handles etc. Save the limit we want to set in case
1924 * we are running on an OS that doesn't support this limit (AIX)
1925 * which always returns RLIM_INFINITY for rlp.rlim_max.
1928 /* Try raising the hard (max) limit to the requested amount. */
1930 #if defined(RLIM_INFINITY)
1931 if (rlp.rlim_max != RLIM_INFINITY) {
1932 int orig_max = rlp.rlim_max;
1934 if ( rlp.rlim_max < requested_max )
1935 rlp.rlim_max = requested_max;
1937 /* This failing is not an error - many systems (Linux) don't
1938 support our default request of 10,000 open files. JRA. */
1940 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1941 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1942 (int)rlp.rlim_max, strerror(errno) ));
1944 /* Set failed - restore original value from get. */
1945 rlp.rlim_max = orig_max;
1950 /* Now try setting the soft (current) limit. */
1952 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1954 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1955 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1956 (int)rlp.rlim_cur, strerror(errno) ));
1958 return saved_current_limit;
1961 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1962 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1965 return saved_current_limit;
1968 #if defined(RLIM_INFINITY)
1969 if(rlp.rlim_cur == RLIM_INFINITY)
1970 return saved_current_limit;
1973 if((int)rlp.rlim_cur > saved_current_limit)
1974 return saved_current_limit;
1976 return rlp.rlim_cur;
1977 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1979 * No way to know - just guess...
1981 return requested_max;
1985 /*****************************************************************
1986 malloc that aborts with smb_panic on fail or zero size.
1987 *****************************************************************/
1989 void *smb_xmalloc_array(size_t size, unsigned int count)
1993 smb_panic("smb_xmalloc_array: called with zero size");
1995 if (count >= MAX_ALLOC_SIZE/size) {
1996 smb_panic("smb_xmalloc_array: alloc size too large");
1998 if ((p = SMB_MALLOC(size*count)) == NULL) {
1999 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2000 (unsigned long)size, (unsigned long)count));
2001 smb_panic("smb_xmalloc_array: malloc failed");
2007 vasprintf that aborts on malloc fail
2010 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
2017 n = vasprintf(ptr, format, ap2);
2019 if (n == -1 || ! *ptr) {
2020 smb_panic("smb_xvasprintf: out of memory");
2025 /*****************************************************************
2026 Get local hostname and cache result.
2027 *****************************************************************/
2029 char *myhostname(void)
2033 ret = get_myname(NULL);
2039 * @brief Returns an absolute path to a file concatenating the provided
2040 * @a rootpath and @a basename
2042 * @param name Filename, relative to @a rootpath
2044 * @retval Pointer to a string containing the full path.
2047 static char *xx_path(const char *name, const char *rootpath)
2051 fname = talloc_strdup(talloc_tos(), rootpath);
2055 trim_string(fname,"","/");
2057 if (!directory_exist(fname)) {
2058 if (!mkdir(fname,0755))
2059 DEBUG(1, ("Unable to create directory %s for file %s. "
2060 "Error was %s\n", fname, name, strerror(errno)));
2063 return talloc_asprintf(talloc_tos(),
2070 * @brief Returns an absolute path to a file in the Samba lock directory.
2072 * @param name File to find, relative to LOCKDIR.
2074 * @retval Pointer to a talloc'ed string containing the full path.
2077 char *lock_path(const char *name)
2079 return xx_path(name, lp_lockdir());
2083 * @brief Returns an absolute path to a file in the Samba pid directory.
2085 * @param name File to find, relative to PIDDIR.
2087 * @retval Pointer to a talloc'ed string containing the full path.
2090 char *pid_path(const char *name)
2092 return xx_path(name, lp_piddir());
2096 * @brief Returns an absolute path to a file in the Samba lib directory.
2098 * @param name File to find, relative to LIBDIR.
2100 * @retval Pointer to a string containing the full path.
2103 char *lib_path(const char *name)
2105 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name);
2109 * @brief Returns an absolute path to a file in the Samba modules directory.
2111 * @param name File to find, relative to MODULESDIR.
2113 * @retval Pointer to a string containing the full path.
2116 char *modules_path(const char *name)
2118 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name);
2122 * @brief Returns an absolute path to a file in the Samba data directory.
2124 * @param name File to find, relative to CODEPAGEDIR.
2126 * @retval Pointer to a talloc'ed string containing the full path.
2129 char *data_path(const char *name)
2131 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name);
2135 * @brief Returns an absolute path to a file in the Samba state directory.
2137 * @param name File to find, relative to STATEDIR.
2139 * @retval Pointer to a talloc'ed string containing the full path.
2142 char *state_path(const char *name)
2144 return xx_path(name, lp_statedir());
2148 * @brief Returns an absolute path to a file in the Samba cache directory.
2150 * @param name File to find, relative to CACHEDIR.
2152 * @retval Pointer to a talloc'ed string containing the full path.
2155 char *cache_path(const char *name)
2157 return xx_path(name, lp_cachedir());
2161 * @brief Returns the platform specific shared library extension.
2163 * @retval Pointer to a const char * containing the extension.
2166 const char *shlib_ext(void)
2168 return get_dyn_SHLIBEXT();
2171 /*******************************************************************
2172 Given a filename - get its directory name
2173 ********************************************************************/
2175 bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
2181 p = strrchr_m(dir, '/'); /* Find final '/', if any */
2184 if (!(*parent = talloc_strdup(mem_ctx, "."))) {
2195 if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) {
2198 (*parent)[len] = '\0';
2206 /*******************************************************************
2207 Determine if a pattern contains any Microsoft wildcard characters.
2208 *******************************************************************/
2210 bool ms_has_wild(const char *s)
2214 if (lp_posix_pathnames()) {
2215 /* With posix pathnames no characters are wild. */
2219 while ((c = *s++)) {
2232 bool ms_has_wild_w(const smb_ucs2_t *s)
2235 if (!s) return False;
2236 while ((c = *s++)) {
2238 case UCS2_CHAR('*'):
2239 case UCS2_CHAR('?'):
2240 case UCS2_CHAR('<'):
2241 case UCS2_CHAR('>'):
2242 case UCS2_CHAR('"'):
2249 /*******************************************************************
2250 A wrapper that handles case sensitivity and the special handling
2252 *******************************************************************/
2254 bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
2256 if (ISDOTDOT(string))
2261 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
2264 /*******************************************************************
2265 A wrapper that handles case sensitivity and the special handling
2266 of the ".." name. Varient that is only called by old search code which requires
2267 pattern translation.
2268 *******************************************************************/
2270 bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive)
2272 if (ISDOTDOT(string))
2277 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
2280 /*******************************************************************
2281 A wrapper that handles a list of patters and calls mask_match()
2282 on each. Returns True if any of the patterns match.
2283 *******************************************************************/
2285 bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
2287 while (listLen-- > 0) {
2288 if (mask_match(string, *list++, is_case_sensitive))
2294 /*********************************************************
2295 Recursive routine that is called by unix_wild_match.
2296 *********************************************************/
2298 static bool unix_do_match(const char *regexp, const char *str)
2302 for( p = regexp; *p && *str; ) {
2313 * Look for a character matching
2314 * the one after the '*'.
2318 return true; /* Automatic match */
2321 while(*str && (*p != *str))
2325 * Patch from weidel@multichart.de. In the case of the regexp
2326 * '*XX*' we want to ensure there are at least 2 'X' characters
2327 * in the string after the '*' for a match to be made.
2334 * Eat all the characters that match, but count how many there were.
2337 while(*str && (*p == *str)) {
2343 * Now check that if the regexp had n identical characters that
2344 * matchcount had at least that many matches.
2347 while ( *(p+1) && (*(p+1) == *p)) {
2352 if ( matchcount <= 0 )
2356 str--; /* We've eaten the match char after the '*' */
2358 if(unix_do_match(p, str))
2380 if (!*p && str[0] == '.' && str[1] == 0)
2383 if (!*str && *p == '?') {
2389 if(!*str && (*p == '*' && p[1] == '\0'))
2395 /*******************************************************************
2396 Simple case insensitive interface to a UNIX wildcard matcher.
2397 Returns True if match, False if not.
2398 *******************************************************************/
2400 bool unix_wild_match(const char *pattern, const char *string)
2402 TALLOC_CTX *ctx = talloc_stackframe();
2408 p2 = talloc_strdup(ctx,pattern);
2409 s2 = talloc_strdup(ctx,string);
2417 /* Remove any *? and ** from the pattern as they are meaningless */
2418 for(p = p2; *p; p++) {
2419 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) {
2420 memmove(&p[1], &p[2], strlen(&p[2])+1);
2424 if (strequal(p2,"*")) {
2429 ret = unix_do_match(p2, s2);
2434 /**********************************************************************
2435 Converts a name to a fully qualified domain name.
2436 Returns true if lookup succeeded, false if not (then fqdn is set to name)
2437 Note we deliberately use gethostbyname here, not getaddrinfo as we want
2438 to examine the h_aliases and I don't know how to do that with getaddrinfo.
2439 ***********************************************************************/
2441 bool name_to_fqdn(fstring fqdn, const char *name)
2444 struct hostent *hp = gethostbyname(name);
2446 if (!hp || !hp->h_name || !*hp->h_name) {
2447 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
2448 fstrcpy(fqdn, name);
2452 /* Find out if the fqdn is returned as an alias
2453 * to cope with /etc/hosts files where the first
2454 * name is not the fqdn but the short name */
2455 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) {
2457 for (i = 0; hp->h_aliases[i]; i++) {
2458 if (strchr_m(hp->h_aliases[i], '.')) {
2459 full = hp->h_aliases[i];
2464 if (full && (StrCaseCmp(full, "localhost.localdomain") == 0)) {
2465 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
2466 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
2467 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
2468 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
2475 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
2476 fstrcpy(fqdn, full);
2480 /**********************************************************************
2481 Append a DATA_BLOB to a talloc'ed object
2482 ***********************************************************************/
2484 void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob)
2486 size_t old_size = 0;
2489 if (blob.length == 0) {
2494 old_size = talloc_get_size(buf);
2497 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length);
2498 if (result == NULL) {
2502 memcpy(result + old_size, blob.data, blob.length);
2506 uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
2508 switch (share_access & ~FILE_SHARE_DELETE) {
2509 case FILE_SHARE_NONE:
2511 case FILE_SHARE_READ:
2513 case FILE_SHARE_WRITE:
2515 case FILE_SHARE_READ|FILE_SHARE_WRITE:
2518 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
2520 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
2527 pid_t procid_to_pid(const struct server_id *proc)
2532 static uint32 my_vnn = NONCLUSTER_VNN;
2534 void set_my_vnn(uint32 vnn)
2536 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn));
2540 uint32 get_my_vnn(void)
2545 static uint64_t my_unique_id = 0;
2547 void set_my_unique_id(uint64_t unique_id)
2549 my_unique_id = unique_id;
2552 struct server_id pid_to_procid(pid_t pid)
2554 struct server_id result;
2556 result.unique_id = my_unique_id;
2557 result.vnn = my_vnn;
2561 struct server_id procid_self(void)
2563 return pid_to_procid(sys_getpid());
2566 bool procid_equal(const struct server_id *p1, const struct server_id *p2)
2568 if (p1->pid != p2->pid)
2570 if (p1->vnn != p2->vnn)
2575 bool cluster_id_equal(const struct server_id *id1,
2576 const struct server_id *id2)
2578 return procid_equal(id1, id2);
2581 bool procid_is_me(const struct server_id *pid)
2583 if (pid->pid != sys_getpid())
2585 if (pid->vnn != my_vnn)
2590 struct server_id interpret_pid(const char *pid_string)
2592 struct server_id result;
2595 if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) {
2599 else if (sscanf(pid_string, "%d", &pid) == 1) {
2600 result.vnn = get_my_vnn();
2604 result.vnn = NONCLUSTER_VNN;
2607 /* Assigning to result.pid may have overflowed
2608 Map negative pid to -1: i.e. error */
2609 if (result.pid < 0) {
2612 result.unique_id = 0;
2616 char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid)
2618 if (pid->vnn == NONCLUSTER_VNN) {
2619 return talloc_asprintf(mem_ctx,
2624 return talloc_asprintf(mem_ctx,
2631 char *procid_str_static(const struct server_id *pid)
2633 return procid_str(talloc_tos(), pid);
2636 bool procid_valid(const struct server_id *pid)
2638 return (pid->pid != -1);
2641 bool procid_is_local(const struct server_id *pid)
2643 return pid->vnn == my_vnn;
2646 /****************************************************************
2647 Check if offset/length fit into bufsize. Should probably be
2648 merged with is_offset_safe, but this would require a rewrite
2649 of lanman.c. Later :-)
2650 ****************************************************************/
2652 bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
2654 if ((offset + length < offset) || (offset + length < length)) {
2658 if ((offset > bufsize) || (offset + length > bufsize)) {
2665 /****************************************************************
2666 Check if an offset into a buffer is safe.
2667 If this returns True it's safe to indirect into the byte at
2669 ****************************************************************/
2671 bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2673 const char *end_base = buf_base + buf_len;
2674 char *end_ptr = ptr + off;
2676 if (!buf_base || !ptr) {
2680 if (end_base < buf_base || end_ptr < ptr) {
2681 return False; /* wrap. */
2684 if (end_ptr < end_base) {
2690 /****************************************************************
2691 Return a safe pointer into a buffer, or NULL.
2692 ****************************************************************/
2694 char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2696 return is_offset_safe(buf_base, buf_len, ptr, off) ?
2700 /****************************************************************
2701 Return a safe pointer into a string within a buffer, or NULL.
2702 ****************************************************************/
2704 char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2706 if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
2709 /* Check if a valid string exists at this offset. */
2710 if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
2716 /****************************************************************
2717 Return an SVAL at a pointer, or failval if beyond the end.
2718 ****************************************************************/
2720 int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2723 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
2726 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) {
2729 return SVAL(ptr,off);
2732 /****************************************************************
2733 Return an IVAL at a pointer, or failval if beyond the end.
2734 ****************************************************************/
2736 int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2739 * Note we use off+3 here, not off+4 as IVAL accesses
2740 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
2742 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) {
2745 return IVAL(ptr,off);
2748 /****************************************************************
2749 Split DOM\user into DOM and user. Do not mix with winbind variants of that
2750 call (they take care of winbind separator and other winbind specific settings).
2751 ****************************************************************/
2753 void split_domain_user(TALLOC_CTX *mem_ctx,
2754 const char *full_name,
2758 const char *p = NULL;
2760 p = strchr_m(full_name, '\\');
2763 *domain = talloc_strndup(mem_ctx, full_name,
2764 PTR_DIFF(p, full_name));
2765 *user = talloc_strdup(mem_ctx, p+1);
2767 *domain = talloc_strdup(mem_ctx, "");
2768 *user = talloc_strdup(mem_ctx, full_name);
2774 Disable these now we have checked all code paths and ensured
2775 NULL returns on zero request. JRA.
2777 /****************************************************************
2778 talloc wrapper functions that guarentee a null pointer return
2780 ****************************************************************/
2782 #ifndef MAX_TALLOC_SIZE
2783 #define MAX_TALLOC_SIZE 0x10000000
2787 * talloc and zero memory.
2788 * - returns NULL if size is zero.
2791 void *_talloc_zero_zeronull(const void *ctx, size_t size, const char *name)
2799 p = talloc_named_const(ctx, size, name);
2802 memset(p, '\0', size);
2809 * memdup with a talloc.
2810 * - returns NULL if size is zero.
2813 void *_talloc_memdup_zeronull(const void *t, const void *p, size_t size, const char *name)
2821 newp = talloc_named_const(t, size, name);
2823 memcpy(newp, p, size);
2830 * alloc an array, checking for integer overflow in the array size.
2831 * - returns NULL if count or el_size are zero.
2834 void *_talloc_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2836 if (count >= MAX_TALLOC_SIZE/el_size) {
2840 if (el_size == 0 || count == 0) {
2844 return talloc_named_const(ctx, el_size * count, name);
2848 * alloc an zero array, checking for integer overflow in the array size
2849 * - returns NULL if count or el_size are zero.
2852 void *_talloc_zero_array_zeronull(const void *ctx, size_t el_size, unsigned count, const char *name)
2854 if (count >= MAX_TALLOC_SIZE/el_size) {
2858 if (el_size == 0 || count == 0) {
2862 return _talloc_zero(ctx, el_size * count, name);
2866 * Talloc wrapper that returns NULL if size == 0.
2868 void *talloc_zeronull(const void *context, size_t size, const char *name)
2873 return talloc_named_const(context, size, name);
2877 /****************************************************************
2878 strip off leading '\\' from a hostname
2879 ****************************************************************/
2881 const char *strip_hostname(const char *s)
2887 if (strlen_m(s) < 3) {
2891 if (s[0] == '\\') s++;
2892 if (s[0] == '\\') s++;
2897 bool tevent_req_poll_ntstatus(struct tevent_req *req,
2898 struct tevent_context *ev,
2901 bool ret = tevent_req_poll(req, ev);
2903 *status = map_nt_error_from_unix(errno);
2908 bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
2910 if (!NT_STATUS_IS_OK(err1)) {
2914 if (!NT_STATUS_IS_OK(err2)) {
2921 int timeval_to_msec(struct timeval t)
2923 return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;