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/>.
26 extern char *global_clobber_region_function
;
27 extern unsigned int global_clobber_region_line
;
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 enum protocol_types Protocol
= PROTOCOL_COREPLUS
;
60 /* this is used by the chaining code */
63 static enum remote_arch_types ra_type
= RA_UNKNOWN
;
65 /***********************************************************************
66 Definitions for all names.
67 ***********************************************************************/
69 static char *smb_myname
;
70 static char *smb_myworkgroup
;
71 static char *smb_scope
;
72 static int smb_num_netbios_names
;
73 static char **smb_my_netbios_names
;
75 /***********************************************************************
76 Allocate and set myname. Ensure upper case.
77 ***********************************************************************/
79 bool set_global_myname(const char *myname
)
81 SAFE_FREE(smb_myname
);
82 smb_myname
= SMB_STRDUP(myname
);
85 strupper_m(smb_myname
);
89 const char *global_myname(void)
94 /***********************************************************************
95 Allocate and set myworkgroup. Ensure upper case.
96 ***********************************************************************/
98 bool set_global_myworkgroup(const char *myworkgroup
)
100 SAFE_FREE(smb_myworkgroup
);
101 smb_myworkgroup
= SMB_STRDUP(myworkgroup
);
102 if (!smb_myworkgroup
)
104 strupper_m(smb_myworkgroup
);
108 const char *lp_workgroup(void)
110 return smb_myworkgroup
;
113 /***********************************************************************
114 Allocate and set scope. Ensure upper case.
115 ***********************************************************************/
117 bool set_global_scope(const char *scope
)
119 SAFE_FREE(smb_scope
);
120 smb_scope
= SMB_STRDUP(scope
);
123 strupper_m(smb_scope
);
127 /*********************************************************************
128 Ensure scope is never null string.
129 *********************************************************************/
131 const char *global_scope(void)
134 set_global_scope("");
138 static void free_netbios_names_array(void)
142 for (i
= 0; i
< smb_num_netbios_names
; i
++)
143 SAFE_FREE(smb_my_netbios_names
[i
]);
145 SAFE_FREE(smb_my_netbios_names
);
146 smb_num_netbios_names
= 0;
149 static bool allocate_my_netbios_names_array(size_t number
)
151 free_netbios_names_array();
153 smb_num_netbios_names
= number
+ 1;
154 smb_my_netbios_names
= SMB_MALLOC_ARRAY( char *, smb_num_netbios_names
);
156 if (!smb_my_netbios_names
)
159 memset(smb_my_netbios_names
, '\0', sizeof(char *) * smb_num_netbios_names
);
163 static bool set_my_netbios_names(const char *name
, int i
)
165 SAFE_FREE(smb_my_netbios_names
[i
]);
167 smb_my_netbios_names
[i
] = SMB_STRDUP(name
);
168 if (!smb_my_netbios_names
[i
])
170 strupper_m(smb_my_netbios_names
[i
]);
174 /***********************************************************************
175 Free memory allocated to global objects
176 ***********************************************************************/
178 void gfree_names(void)
180 SAFE_FREE( smb_myname
);
181 SAFE_FREE( smb_myworkgroup
);
182 SAFE_FREE( smb_scope
);
183 free_netbios_names_array();
184 free_local_machine_name();
187 void gfree_all( void )
197 const char *my_netbios_names(int i
)
199 return smb_my_netbios_names
[i
];
202 bool set_netbios_aliases(const char **str_array
)
206 /* Work out the max number of netbios aliases that we have */
207 for( namecount
=0; str_array
&& (str_array
[namecount
] != NULL
); namecount
++ )
210 if ( global_myname() && *global_myname())
213 /* Allocate space for the netbios aliases */
214 if (!allocate_my_netbios_names_array(namecount
))
217 /* Use the global_myname string first */
219 if ( global_myname() && *global_myname()) {
220 set_my_netbios_names( global_myname(), namecount
);
226 for ( i
= 0; str_array
[i
] != NULL
; i
++) {
228 bool duplicate
= False
;
230 /* Look for duplicates */
231 for( n
=0; n
<namecount
; n
++ ) {
232 if( strequal( str_array
[i
], my_netbios_names(n
) ) ) {
238 if (!set_my_netbios_names(str_array
[i
], namecount
))
247 /****************************************************************************
248 Common name initialization code.
249 ****************************************************************************/
251 bool init_names(void)
255 if (global_myname() == NULL
|| *global_myname() == '\0') {
256 if (!set_global_myname(myhostname())) {
257 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
262 if (!set_netbios_aliases(lp_netbios_aliases())) {
263 DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
267 set_local_machine_name(global_myname(),false);
269 DEBUG( 5, ("Netbios name list:-\n") );
270 for( n
=0; my_netbios_names(n
); n
++ ) {
271 DEBUGADD( 5, ("my_netbios_names[%d]=\"%s\"\n",
272 n
, my_netbios_names(n
) ) );
278 /**************************************************************************n
279 Code to cope with username/password auth options from the commandline.
280 Used mainly in client tools.
281 ****************************************************************************/
283 static struct user_auth_info cmdline_auth_info
= {
286 false, /* got_pass */
287 false, /* use_kerberos */
288 Undefined
, /* signing state */
289 false, /* smb_encrypt */
290 false /* use machine account */
293 const char *get_cmdline_auth_info_username(void)
295 if (!cmdline_auth_info
.username
) {
298 return cmdline_auth_info
.username
;
301 void set_cmdline_auth_info_username(const char *username
)
303 SAFE_FREE(cmdline_auth_info
.username
);
304 cmdline_auth_info
.username
= SMB_STRDUP(username
);
305 if (!cmdline_auth_info
.username
) {
310 const char *get_cmdline_auth_info_password(void)
312 if (!cmdline_auth_info
.password
) {
315 return cmdline_auth_info
.password
;
318 void set_cmdline_auth_info_password(const char *password
)
320 SAFE_FREE(cmdline_auth_info
.password
);
321 cmdline_auth_info
.password
= SMB_STRDUP(password
);
322 if (!cmdline_auth_info
.password
) {
325 cmdline_auth_info
.got_pass
= true;
328 bool set_cmdline_auth_info_signing_state(const char *arg
)
330 cmdline_auth_info
.signing_state
= -1;
331 if (strequal(arg
, "off") || strequal(arg
, "no") ||
332 strequal(arg
, "false")) {
333 cmdline_auth_info
.signing_state
= false;
334 } else if (strequal(arg
, "on") || strequal(arg
, "yes") ||
335 strequal(arg
, "true") || strequal(arg
, "auto")) {
336 cmdline_auth_info
.signing_state
= true;
337 } else if (strequal(arg
, "force") || strequal(arg
, "required") ||
338 strequal(arg
, "forced")) {
339 cmdline_auth_info
.signing_state
= Required
;
346 int get_cmdline_auth_info_signing_state(void)
348 return cmdline_auth_info
.signing_state
;
351 void set_cmdline_auth_info_use_kerberos(bool b
)
353 cmdline_auth_info
.use_kerberos
= b
;
356 bool get_cmdline_auth_info_use_kerberos(void)
358 return cmdline_auth_info
.use_kerberos
;
361 /* This should only be used by lib/popt_common.c JRA */
362 void set_cmdline_auth_info_use_krb5_ticket(void)
364 cmdline_auth_info
.use_kerberos
= true;
365 cmdline_auth_info
.got_pass
= true;
368 /* This should only be used by lib/popt_common.c JRA */
369 void set_cmdline_auth_info_smb_encrypt(void)
371 cmdline_auth_info
.smb_encrypt
= true;
374 void set_cmdline_auth_info_use_machine_account(void)
376 cmdline_auth_info
.use_machine_account
= true;
379 bool get_cmdline_auth_info_got_pass(void)
381 return cmdline_auth_info
.got_pass
;
384 bool get_cmdline_auth_info_smb_encrypt(void)
386 return cmdline_auth_info
.smb_encrypt
;
389 bool get_cmdline_auth_info_use_machine_account(void)
391 return cmdline_auth_info
.use_machine_account
;
394 bool get_cmdline_auth_info_copy(struct user_auth_info
*info
)
396 *info
= cmdline_auth_info
;
397 /* Now re-alloc the strings. */
398 info
->username
= SMB_STRDUP(get_cmdline_auth_info_username());
399 info
->password
= SMB_STRDUP(get_cmdline_auth_info_password());
400 if (!info
->username
|| !info
->password
) {
406 bool set_cmdline_auth_info_machine_account_creds(void)
409 char *account
= NULL
;
411 if (!get_cmdline_auth_info_use_machine_account()) {
415 if (!secrets_init()) {
416 d_printf("ERROR: Unable to open secrets database\n");
420 if (asprintf(&account
, "%s$@%s", global_myname(), lp_realm()) < 0) {
424 pass
= secrets_fetch_machine_password(lp_workgroup(), NULL
, NULL
);
426 d_printf("ERROR: Unable to fetch machine password for "
428 account
, lp_workgroup());
433 set_cmdline_auth_info_username(account
);
434 set_cmdline_auth_info_password(pass
);
442 /**************************************************************************n
443 Find a suitable temporary directory. The result should be copied immediately
444 as it may be overwritten by a subsequent call.
445 ****************************************************************************/
447 const char *tmpdir(void)
450 if ((p
= getenv("TMPDIR")))
455 /****************************************************************************
456 Add a gid to an array of gids if it's not already there.
457 ****************************************************************************/
459 bool add_gid_to_array_unique(TALLOC_CTX
*mem_ctx
, gid_t gid
,
460 gid_t
**gids
, size_t *num_gids
)
464 if ((*num_gids
!= 0) && (*gids
== NULL
)) {
466 * A former call to this routine has failed to allocate memory
471 for (i
=0; i
<*num_gids
; i
++) {
472 if ((*gids
)[i
] == gid
) {
477 *gids
= TALLOC_REALLOC_ARRAY(mem_ctx
, *gids
, gid_t
, *num_gids
+1);
483 (*gids
)[*num_gids
] = gid
;
488 /****************************************************************************
489 Like atoi but gets the value up to the separator character.
490 ****************************************************************************/
492 static const char *Atoic(const char *p
, int *n
, const char *c
)
494 if (!isdigit((int)*p
)) {
495 DEBUG(5, ("Atoic: malformed number\n"));
501 while ((*p
) && isdigit((int)*p
))
504 if (strchr_m(c
, *p
) == NULL
) {
505 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c
));
512 /*************************************************************************
513 Reads a list of numbers.
514 *************************************************************************/
516 const char *get_numlist(const char *p
, uint32
**num
, int *count
)
520 if (num
== NULL
|| count
== NULL
)
526 while ((p
= Atoic(p
, &val
, ":,")) != NULL
&& (*p
) != ':') {
527 *num
= SMB_REALLOC_ARRAY((*num
), uint32
, (*count
)+1);
531 (*num
)[(*count
)] = val
;
539 /*******************************************************************
540 Check if a file exists - call vfs_file_exist for samba files.
541 ********************************************************************/
543 bool file_exist(const char *fname
,SMB_STRUCT_STAT
*sbuf
)
549 if (sys_stat(fname
,sbuf
) != 0)
552 return((S_ISREG(sbuf
->st_mode
)) || (S_ISFIFO(sbuf
->st_mode
)));
555 /*******************************************************************
556 Check if a unix domain socket exists - call vfs_file_exist for samba files.
557 ********************************************************************/
559 bool socket_exist(const char *fname
)
562 if (sys_stat(fname
,&st
) != 0)
565 return S_ISSOCK(st
.st_mode
);
568 /*******************************************************************
569 Check a files mod time.
570 ********************************************************************/
572 time_t file_modtime(const char *fname
)
576 if (sys_stat(fname
,&st
) != 0)
582 /*******************************************************************
583 Check if a directory exists.
584 ********************************************************************/
586 bool directory_exist(char *dname
,SMB_STRUCT_STAT
*st
)
594 if (sys_stat(dname
,st
) != 0)
597 ret
= S_ISDIR(st
->st_mode
);
603 /*******************************************************************
604 Returns the size in bytes of the named file.
605 ********************************************************************/
607 SMB_OFF_T
get_file_size(char *file_name
)
611 if(sys_stat(file_name
,&buf
) != 0)
612 return (SMB_OFF_T
)-1;
616 /*******************************************************************
617 Return a string representing an attribute for a file.
618 ********************************************************************/
620 char *attrib_string(uint16 mode
)
626 if (mode
& aVOLID
) fstrcat(attrstr
,"V");
627 if (mode
& aDIR
) fstrcat(attrstr
,"D");
628 if (mode
& aARCH
) fstrcat(attrstr
,"A");
629 if (mode
& aHIDDEN
) fstrcat(attrstr
,"H");
630 if (mode
& aSYSTEM
) fstrcat(attrstr
,"S");
631 if (mode
& aRONLY
) fstrcat(attrstr
,"R");
633 return talloc_strdup(talloc_tos(), attrstr
);
636 /*******************************************************************
637 Show a smb message structure.
638 ********************************************************************/
640 void show_msg(char *buf
)
648 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
650 (int)CVAL(buf
,smb_com
),
651 (int)CVAL(buf
,smb_rcls
),
652 (int)CVAL(buf
,smb_reh
),
653 (int)SVAL(buf
,smb_err
),
654 (int)CVAL(buf
,smb_flg
),
655 (int)SVAL(buf
,smb_flg2
)));
656 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
657 (int)SVAL(buf
,smb_tid
),
658 (int)SVAL(buf
,smb_pid
),
659 (int)SVAL(buf
,smb_uid
),
660 (int)SVAL(buf
,smb_mid
)));
661 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf
,smb_wct
)));
663 for (i
=0;i
<(int)CVAL(buf
,smb_wct
);i
++)
664 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i
,
665 SVAL(buf
,smb_vwv
+2*i
),SVAL(buf
,smb_vwv
+2*i
)));
667 bcc
= (int)SVAL(buf
,smb_vwv
+2*(CVAL(buf
,smb_wct
)));
669 DEBUGADD(5,("smb_bcc=%d\n",bcc
));
677 dump_data(10, (uint8
*)smb_buf(buf
), bcc
);
680 /*******************************************************************
681 Set the length and marker of an encrypted smb packet.
682 ********************************************************************/
684 void smb_set_enclen(char *buf
,int len
,uint16 enc_ctx_num
)
686 _smb_setlen(buf
,len
);
690 SSVAL(buf
,6,enc_ctx_num
);
693 /*******************************************************************
694 Set the length and marker of an smb packet.
695 ********************************************************************/
697 void smb_setlen(char *buf
,int len
)
699 _smb_setlen(buf
,len
);
707 /*******************************************************************
708 Setup only the byte count for a smb message.
709 ********************************************************************/
711 int set_message_bcc(char *buf
,int num_bytes
)
713 int num_words
= CVAL(buf
,smb_wct
);
714 SSVAL(buf
,smb_vwv
+ num_words
*SIZEOFWORD
,num_bytes
);
715 _smb_setlen(buf
,smb_size
+ num_words
*2 + num_bytes
- 4);
716 return (smb_size
+ num_words
*2 + num_bytes
);
719 /*******************************************************************
720 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
721 Return the bytes added
722 ********************************************************************/
724 ssize_t
message_push_blob(uint8
**outbuf
, DATA_BLOB blob
)
726 size_t newlen
= smb_len(*outbuf
) + 4 + blob
.length
;
729 if (!(tmp
= TALLOC_REALLOC_ARRAY(NULL
, *outbuf
, uint8
, newlen
))) {
730 DEBUG(0, ("talloc failed\n"));
735 memcpy(tmp
+ smb_len(tmp
) + 4, blob
.data
, blob
.length
);
736 set_message_bcc((char *)tmp
, smb_buflen(tmp
) + blob
.length
);
740 /*******************************************************************
741 Reduce a file name, removing .. elements.
742 ********************************************************************/
744 static char *dos_clean_name(TALLOC_CTX
*ctx
, const char *s
)
749 DEBUG(3,("dos_clean_name [%s]\n",s
));
751 /* remove any double slashes */
752 str
= talloc_all_string_sub(ctx
, s
, "\\\\", "\\");
757 /* Remove leading .\\ characters */
758 if(strncmp(str
, ".\\", 2) == 0) {
759 trim_string(str
, ".\\", NULL
);
761 str
= talloc_strdup(ctx
, ".\\");
768 while ((p
= strstr_m(str
,"\\..\\")) != NULL
) {
774 if ((p
=strrchr_m(str
,'\\')) != NULL
) {
779 str
= talloc_asprintf(ctx
,
788 trim_string(str
,NULL
,"\\..");
789 return talloc_all_string_sub(ctx
, str
, "\\.\\", "\\");
792 /*******************************************************************
793 Reduce a file name, removing .. elements.
794 ********************************************************************/
796 char *unix_clean_name(TALLOC_CTX
*ctx
, const char *s
)
801 DEBUG(3,("unix_clean_name [%s]\n",s
));
803 /* remove any double slashes */
804 str
= talloc_all_string_sub(ctx
, s
, "//","/");
809 /* Remove leading ./ characters */
810 if(strncmp(str
, "./", 2) == 0) {
811 trim_string(str
, "./", NULL
);
813 str
= talloc_strdup(ctx
, "./");
820 while ((p
= strstr_m(str
,"/../")) != NULL
) {
826 if ((p
=strrchr_m(str
,'/')) != NULL
) {
831 str
= talloc_asprintf(ctx
,
840 trim_string(str
,NULL
,"/..");
841 return talloc_all_string_sub(ctx
, str
, "/./", "/");
844 char *clean_name(TALLOC_CTX
*ctx
, const char *s
)
846 char *str
= dos_clean_name(ctx
, s
);
850 return unix_clean_name(ctx
, str
);
853 /*******************************************************************
854 Close the low 3 fd's and open dev/null in their place.
855 ********************************************************************/
857 void close_low_fds(bool stderr_too
)
869 /* try and use up these file descriptors, so silly
870 library routines writing to stdout etc won't cause havoc */
872 if (i
== 2 && !stderr_too
)
875 fd
= sys_open("/dev/null",O_RDWR
,0);
877 fd
= sys_open("/dev/null",O_WRONLY
,0);
879 DEBUG(0,("Can't open /dev/null\n"));
883 DEBUG(0,("Didn't get file descriptor %d\n",i
));
890 /*******************************************************************
891 Write data into an fd at a given offset. Ignore seek errors.
892 ********************************************************************/
894 ssize_t
write_data_at_offset(int fd
, const char *buffer
, size_t N
, SMB_OFF_T pos
)
899 if (pos
== (SMB_OFF_T
)-1) {
900 return write_data(fd
, buffer
, N
);
902 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
904 ret
= sys_pwrite(fd
,buffer
+ total
,N
- total
, pos
);
905 if (ret
== -1 && errno
== ESPIPE
) {
906 return write_data(fd
, buffer
+ total
,N
- total
);
909 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno
) ));
918 return (ssize_t
)total
;
920 /* Use lseek and write_data. */
921 if (sys_lseek(fd
, pos
, SEEK_SET
) == -1) {
922 if (errno
!= ESPIPE
) {
926 return write_data(fd
, buffer
, N
);
930 /****************************************************************************
931 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
935 ****************************************************************************/
937 int set_blocking(int fd
, bool set
)
941 #define FLAG_TO_SET O_NONBLOCK
944 #define FLAG_TO_SET O_NDELAY
946 #define FLAG_TO_SET FNDELAY
950 if((val
= sys_fcntl_long(fd
, F_GETFL
, 0)) == -1)
952 if(set
) /* Turn blocking on - ie. clear nonblock flag */
956 return sys_fcntl_long( fd
, F_SETFL
, val
);
960 /*******************************************************************
961 Sleep for a specified number of milliseconds.
962 ********************************************************************/
964 void smb_msleep(unsigned int t
)
966 #if defined(HAVE_NANOSLEEP)
967 struct timespec tval
;
970 tval
.tv_sec
= t
/1000;
971 tval
.tv_nsec
= 1000000*(t
%1000);
975 ret
= nanosleep(&tval
, &tval
);
976 } while (ret
< 0 && errno
== EINTR
&& (tval
.tv_sec
> 0 || tval
.tv_nsec
> 0));
978 unsigned int tdiff
=0;
979 struct timeval tval
,t1
,t2
;
986 tval
.tv_sec
= (t
-tdiff
)/1000;
987 tval
.tv_usec
= 1000*((t
-tdiff
)%1000);
989 /* Never wait for more than 1 sec. */
990 if (tval
.tv_sec
> 1) {
997 sys_select_intr(0,&fds
,NULL
,NULL
,&tval
);
1000 if (t2
.tv_sec
< t1
.tv_sec
) {
1001 /* Someone adjusted time... */
1005 tdiff
= TvalDiff(&t1
,&t2
);
1010 /****************************************************************************
1011 Become a daemon, discarding the controlling terminal.
1012 ****************************************************************************/
1014 void become_daemon(bool Fork
, bool no_process_group
)
1022 /* detach from the terminal */
1024 if (!no_process_group
) setsid();
1025 #elif defined(TIOCNOTTY)
1026 if (!no_process_group
) {
1027 int i
= sys_open("/dev/tty", O_RDWR
, 0);
1029 ioctl(i
, (int) TIOCNOTTY
, (char *)0);
1033 #endif /* HAVE_SETSID */
1035 /* Close fd's 0,1,2. Needed if started by rsh */
1036 close_low_fds(False
); /* Don't close stderr, let the debug system
1037 attach it to the logfile */
1040 bool reinit_after_fork(struct messaging_context
*msg_ctx
,
1041 bool parent_longlived
)
1045 /* Reset the state of the random
1046 * number generation system, so
1047 * children do not get the same random
1048 * numbers as each other */
1049 set_need_random_reseed();
1051 /* tdb needs special fork handling */
1052 if (tdb_reopen_all(parent_longlived
? 1 : 0) == -1) {
1053 DEBUG(0,("tdb_reopen_all failed.\n"));
1058 * For clustering, we need to re-init our ctdbd connection after the
1061 status
= messaging_reinit(msg_ctx
);
1062 if (!NT_STATUS_IS_OK(status
)) {
1063 DEBUG(0,("messaging_reinit() failed: %s\n",
1064 nt_errstr(status
)));
1071 /****************************************************************************
1072 Put up a yes/no prompt.
1073 ****************************************************************************/
1075 bool yesno(const char *p
)
1080 if (!fgets(ans
,sizeof(ans
)-1,stdin
))
1083 if (*ans
== 'y' || *ans
== 'Y')
1089 #if defined(PARANOID_MALLOC_CHECKER)
1091 /****************************************************************************
1092 Internal malloc wrapper. Externally visible.
1093 ****************************************************************************/
1095 void *malloc_(size_t size
)
1101 return malloc(size
);
1102 #define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
1105 /****************************************************************************
1106 Internal calloc wrapper. Not externally visible.
1107 ****************************************************************************/
1109 static void *calloc_(size_t count
, size_t size
)
1111 if (size
== 0 || count
== 0) {
1115 return calloc(count
, size
);
1116 #define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
1119 /****************************************************************************
1120 Internal realloc wrapper. Not externally visible.
1121 ****************************************************************************/
1123 static void *realloc_(void *ptr
, size_t size
)
1126 return realloc(ptr
, size
);
1127 #define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
1130 #endif /* PARANOID_MALLOC_CHECKER */
1132 /****************************************************************************
1134 ****************************************************************************/
1136 void *malloc_array(size_t el_size
, unsigned int count
)
1138 if (count
>= MAX_ALLOC_SIZE
/el_size
) {
1142 if (el_size
== 0 || count
== 0) {
1145 #if defined(PARANOID_MALLOC_CHECKER)
1146 return malloc_(el_size
*count
);
1148 return malloc(el_size
*count
);
1152 /****************************************************************************
1154 ****************************************************************************/
1156 void *memalign_array(size_t el_size
, size_t align
, unsigned int count
)
1158 if (count
>= MAX_ALLOC_SIZE
/el_size
) {
1162 return sys_memalign(align
, el_size
*count
);
1165 /****************************************************************************
1167 ****************************************************************************/
1169 void *calloc_array(size_t size
, size_t nmemb
)
1171 if (nmemb
>= MAX_ALLOC_SIZE
/size
) {
1174 if (size
== 0 || nmemb
== 0) {
1177 #if defined(PARANOID_MALLOC_CHECKER)
1178 return calloc_(nmemb
, size
);
1180 return calloc(nmemb
, size
);
1184 /****************************************************************************
1185 Expand a pointer to be a particular size.
1186 Note that this version of Realloc has an extra parameter that decides
1187 whether to free the passed in storage on allocation failure or if the
1190 This is designed for use in the typical idiom of :
1192 p = SMB_REALLOC(p, size)
1197 and not to have to keep track of the old 'p' contents to free later, nor
1198 to worry if the size parameter was zero. In the case where NULL is returned
1199 we guarentee that p has been freed.
1201 If free later semantics are desired, then pass 'free_old_on_error' as False which
1202 guarentees that the old contents are not freed on error, even if size == 0. To use
1205 tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
1213 Changes were instigated by Coverity error checking. JRA.
1214 ****************************************************************************/
1216 void *Realloc(void *p
, size_t size
, bool free_old_on_error
)
1221 if (free_old_on_error
) {
1224 DEBUG(2,("Realloc asked for 0 bytes\n"));
1228 #if defined(PARANOID_MALLOC_CHECKER)
1230 ret
= (void *)malloc_(size
);
1232 ret
= (void *)realloc_(p
,size
);
1236 ret
= (void *)malloc(size
);
1238 ret
= (void *)realloc(p
,size
);
1243 if (free_old_on_error
&& p
) {
1246 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size
));
1252 /****************************************************************************
1254 ****************************************************************************/
1256 void *realloc_array(void *p
, size_t el_size
, unsigned int count
, bool free_old_on_error
)
1258 if (count
>= MAX_ALLOC_SIZE
/el_size
) {
1259 if (free_old_on_error
) {
1264 return Realloc(p
, el_size
*count
, free_old_on_error
);
1267 /****************************************************************************
1268 (Hopefully) efficient array append.
1269 ****************************************************************************/
1271 void add_to_large_array(TALLOC_CTX
*mem_ctx
, size_t element_size
,
1272 void *element
, void *_array
, uint32
*num_elements
,
1273 ssize_t
*array_size
)
1275 void **array
= (void **)_array
;
1277 if (*array_size
< 0) {
1281 if (*array
== NULL
) {
1282 if (*array_size
== 0) {
1286 if (*array_size
>= MAX_ALLOC_SIZE
/element_size
) {
1290 *array
= TALLOC(mem_ctx
, element_size
* (*array_size
));
1291 if (*array
== NULL
) {
1296 if (*num_elements
== *array_size
) {
1299 if (*array_size
>= MAX_ALLOC_SIZE
/element_size
) {
1303 *array
= TALLOC_REALLOC(mem_ctx
, *array
,
1304 element_size
* (*array_size
));
1306 if (*array
== NULL
) {
1311 memcpy((char *)(*array
) + element_size
*(*num_elements
),
1312 element
, element_size
);
1322 /****************************************************************************
1323 Free memory, checks for NULL.
1324 Use directly SAFE_FREE()
1325 Exists only because we need to pass a function pointer somewhere --SSS
1326 ****************************************************************************/
1328 void safe_free(void *p
)
1333 /****************************************************************************
1334 Get my own name and IP.
1335 ****************************************************************************/
1337 char *get_myname(TALLOC_CTX
*ctx
)
1340 char hostname
[HOST_NAME_MAX
];
1344 /* get my host name */
1345 if (gethostname(hostname
, sizeof(hostname
)) == -1) {
1346 DEBUG(0,("gethostname failed\n"));
1350 /* Ensure null termination. */
1351 hostname
[sizeof(hostname
)-1] = '\0';
1353 /* split off any parts after an initial . */
1354 p
= strchr_m(hostname
,'.');
1359 return talloc_strdup(ctx
, hostname
);
1362 /****************************************************************************
1363 Get my own domain name, or "" if we have none.
1364 ****************************************************************************/
1366 char *get_mydnsdomname(TALLOC_CTX
*ctx
)
1368 const char *domname
;
1371 domname
= get_mydnsfullname();
1376 p
= strchr_m(domname
, '.');
1379 return talloc_strdup(ctx
, p
);
1381 return talloc_strdup(ctx
, "");
1385 /****************************************************************************
1386 Interpret a protocol description string, with a default.
1387 ****************************************************************************/
1389 int interpret_protocol(const char *str
,int def
)
1391 if (strequal(str
,"NT1"))
1392 return(PROTOCOL_NT1
);
1393 if (strequal(str
,"LANMAN2"))
1394 return(PROTOCOL_LANMAN2
);
1395 if (strequal(str
,"LANMAN1"))
1396 return(PROTOCOL_LANMAN1
);
1397 if (strequal(str
,"CORE"))
1398 return(PROTOCOL_CORE
);
1399 if (strequal(str
,"COREPLUS"))
1400 return(PROTOCOL_COREPLUS
);
1401 if (strequal(str
,"CORE+"))
1402 return(PROTOCOL_COREPLUS
);
1404 DEBUG(0,("Unrecognised protocol level %s\n",str
));
1410 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
1411 /******************************************************************
1412 Remove any mount options such as -rsize=2048,wsize=2048 etc.
1413 Based on a fix from <Thomas.Hepper@icem.de>.
1414 Returns a malloc'ed string.
1415 *******************************************************************/
1417 static char *strip_mount_options(TALLOC_CTX
*ctx
, const char *str
)
1420 const char *p
= str
;
1421 while(*p
&& !isspace(*p
))
1423 while(*p
&& isspace(*p
))
1426 return talloc_strdup(ctx
, p
);
1432 /*******************************************************************
1433 Patch from jkf@soton.ac.uk
1434 Split Luke's automount_server into YP lookup and string splitter
1435 so can easily implement automount_path().
1436 Returns a malloc'ed string.
1437 *******************************************************************/
1439 #ifdef WITH_NISPLUS_HOME
1440 char *automount_lookup(TALLOC_CTX
*ctx
, const char *user_name
)
1444 char *nis_map
= (char *)lp_nis_home_map_name();
1446 char buffer
[NIS_MAXATTRVAL
+ 1];
1451 snprintf(buffer
, sizeof(buffer
), "[key=%s],%s", user_name
, nis_map
);
1452 DEBUG(5, ("NIS+ querystring: %s\n", buffer
));
1454 if (result
= nis_list(buffer
, FOLLOW_PATH
|EXPAND_NAME
|HARD_LOOKUP
, NULL
, NULL
)) {
1455 if (result
->status
!= NIS_SUCCESS
) {
1456 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result
->status
)));
1458 object
= result
->objects
.objects_val
;
1459 if (object
->zo_data
.zo_type
== ENTRY_OBJ
) {
1460 entry
= &object
->zo_data
.objdata_u
.en_data
;
1461 DEBUG(5, ("NIS+ entry type: %s\n", entry
->en_type
));
1462 DEBUG(3, ("NIS+ result: %s\n", entry
->en_cols
.en_cols_val
[1].ec_value
.ec_value_val
));
1464 value
= talloc_strdup(ctx
,
1465 entry
->en_cols
.en_cols_val
[1].ec_value
.ec_value_val
);
1467 nis_freeresult(result
);
1470 value
= talloc_string_sub(ctx
,
1477 nis_freeresult(result
);
1480 value
= strip_mount_options(ctx
, value
);
1481 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
1486 #else /* WITH_NISPLUS_HOME */
1488 char *automount_lookup(TALLOC_CTX
*ctx
, const char *user_name
)
1492 int nis_error
; /* returned by yp all functions */
1493 char *nis_result
; /* yp_match inits this */
1494 int nis_result_len
; /* and set this */
1495 char *nis_domain
; /* yp_get_default_domain inits this */
1496 char *nis_map
= (char *)lp_nis_home_map_name();
1498 if ((nis_error
= yp_get_default_domain(&nis_domain
)) != 0) {
1499 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error
)));
1503 DEBUG(5, ("NIS Domain: %s\n", nis_domain
));
1505 if ((nis_error
= yp_match(nis_domain
, nis_map
, user_name
,
1506 strlen(user_name
), &nis_result
,
1507 &nis_result_len
)) == 0) {
1508 value
= talloc_strdup(ctx
, nis_result
);
1512 value
= strip_mount_options(ctx
, value
);
1513 } else if(nis_error
== YPERR_KEY
) {
1514 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
1515 user_name
, nis_map
));
1516 DEBUG(3, ("using defaults for server and home directory\n"));
1518 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
1519 yperr_string(nis_error
), user_name
, nis_map
));
1523 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name
, value
));
1527 #endif /* WITH_NISPLUS_HOME */
1530 /****************************************************************************
1531 Check if a process exists. Does this work on all unixes?
1532 ****************************************************************************/
1534 bool process_exists(const struct server_id pid
)
1536 if (procid_is_me(&pid
)) {
1540 if (procid_is_local(&pid
)) {
1541 return (kill(pid
.pid
,0) == 0 || errno
!= ESRCH
);
1544 #ifdef CLUSTER_SUPPORT
1545 return ctdbd_process_exists(messaging_ctdbd_connection(), pid
.vnn
,
1552 bool process_exists_by_pid(pid_t pid
)
1554 /* Doing kill with a non-positive pid causes messages to be
1555 * sent to places we don't want. */
1556 SMB_ASSERT(pid
> 0);
1557 return(kill(pid
,0) == 0 || errno
!= ESRCH
);
1560 /*******************************************************************
1561 Convert a uid into a user name.
1562 ********************************************************************/
1564 const char *uidtoname(uid_t uid
)
1566 TALLOC_CTX
*ctx
= talloc_tos();
1568 struct passwd
*pass
= NULL
;
1570 pass
= getpwuid_alloc(ctx
,uid
);
1572 name
= talloc_strdup(ctx
,pass
->pw_name
);
1575 name
= talloc_asprintf(ctx
,
1582 /*******************************************************************
1583 Convert a gid into a group name.
1584 ********************************************************************/
1586 char *gidtoname(gid_t gid
)
1590 grp
= getgrgid(gid
);
1592 return talloc_strdup(talloc_tos(), grp
->gr_name
);
1595 return talloc_asprintf(talloc_tos(),
1601 /*******************************************************************
1602 Convert a user name into a uid.
1603 ********************************************************************/
1605 uid_t
nametouid(const char *name
)
1607 struct passwd
*pass
;
1611 pass
= getpwnam_alloc(NULL
, name
);
1618 u
= (uid_t
)strtol(name
, &p
, 0);
1619 if ((p
!= name
) && (*p
== '\0'))
1625 /*******************************************************************
1626 Convert a name to a gid_t if possible. Return -1 if not a group.
1627 ********************************************************************/
1629 gid_t
nametogid(const char *name
)
1635 g
= (gid_t
)strtol(name
, &p
, 0);
1636 if ((p
!= name
) && (*p
== '\0'))
1639 grp
= sys_getgrnam(name
);
1641 return(grp
->gr_gid
);
1645 /*******************************************************************
1646 Something really nasty happened - panic !
1647 ********************************************************************/
1649 void smb_panic(const char *const why
)
1657 if (global_clobber_region_function
) {
1658 DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n",
1659 global_clobber_region_function
,
1660 global_clobber_region_line
));
1665 DEBUG(0,("PANIC (pid %llu): %s\n",
1666 (unsigned long long)sys_getpid(), why
));
1669 cmd
= lp_panic_action();
1671 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd
));
1672 result
= system(cmd
);
1675 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
1678 DEBUG(0, ("smb_panic(): action returned status %d\n",
1679 WEXITSTATUS(result
)));
1685 /*******************************************************************
1686 Print a backtrace of the stack to the debug log. This function
1687 DELIBERATELY LEAKS MEMORY. The expectation is that you should
1688 exit shortly after calling it.
1689 ********************************************************************/
1691 #ifdef HAVE_LIBUNWIND_H
1692 #include <libunwind.h>
1695 #ifdef HAVE_EXECINFO_H
1696 #include <execinfo.h>
1699 #ifdef HAVE_LIBEXC_H
1703 void log_stack_trace(void)
1705 #ifdef HAVE_LIBUNWIND
1706 /* Try to use libunwind before any other technique since on ia64
1707 * libunwind correctly walks the stack in more circumstances than
1710 unw_cursor_t cursor
;
1715 unw_word_t ip
, sp
, off
;
1717 procname
[sizeof(procname
) - 1] = '\0';
1719 if (unw_getcontext(&uc
) != 0) {
1720 goto libunwind_failed
;
1723 if (unw_init_local(&cursor
, &uc
) != 0) {
1724 goto libunwind_failed
;
1727 DEBUG(0, ("BACKTRACE:\n"));
1731 unw_get_reg(&cursor
, UNW_REG_IP
, &ip
);
1732 unw_get_reg(&cursor
, UNW_REG_SP
, &sp
);
1734 switch (unw_get_proc_name(&cursor
,
1735 procname
, sizeof(procname
) - 1, &off
) ) {
1739 /* Name truncated. */
1740 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
1741 i
, procname
, (long long)off
,
1742 (long long)ip
, (long long) sp
));
1745 /* case -UNW_ENOINFO: */
1746 /* case -UNW_EUNSPEC: */
1747 /* No symbol name found. */
1748 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
1749 i
, "<unknown symbol>",
1750 (long long)ip
, (long long) sp
));
1753 } while (unw_step(&cursor
) > 0);
1758 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
1760 #elif HAVE_BACKTRACE_SYMBOLS
1761 void *backtrace_stack
[BACKTRACE_STACK_SIZE
];
1762 size_t backtrace_size
;
1763 char **backtrace_strings
;
1765 /* get the backtrace (stack frames) */
1766 backtrace_size
= backtrace(backtrace_stack
,BACKTRACE_STACK_SIZE
);
1767 backtrace_strings
= backtrace_symbols(backtrace_stack
, backtrace_size
);
1769 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
1770 (unsigned long)backtrace_size
));
1772 if (backtrace_strings
) {
1775 for (i
= 0; i
< backtrace_size
; i
++)
1776 DEBUGADD(0, (" #%u %s\n", i
, backtrace_strings
[i
]));
1778 /* Leak the backtrace_strings, rather than risk what free() might do */
1783 /* The IRIX libexc library provides an API for unwinding the stack. See
1784 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
1785 * since we are about to abort anyway, it hardly matters.
1788 #define NAMESIZE 32 /* Arbitrary */
1790 __uint64_t addrs
[BACKTRACE_STACK_SIZE
];
1791 char * names
[BACKTRACE_STACK_SIZE
];
1792 char namebuf
[BACKTRACE_STACK_SIZE
* NAMESIZE
];
1799 ZERO_ARRAY(namebuf
);
1801 /* We need to be root so we can open our /proc entry to walk
1802 * our stack. It also helps when we want to dump core.
1806 for (i
= 0; i
< BACKTRACE_STACK_SIZE
; i
++) {
1807 names
[i
] = namebuf
+ (i
* NAMESIZE
);
1810 levels
= trace_back_stack(0, addrs
, names
,
1811 BACKTRACE_STACK_SIZE
, NAMESIZE
- 1);
1813 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels
));
1814 for (i
= 0; i
< levels
; i
++) {
1815 DEBUGADD(0, (" #%d 0x%llx %s\n", i
, addrs
[i
], names
[i
]));
1820 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
1824 /*******************************************************************
1825 A readdir wrapper which just returns the file name.
1826 ********************************************************************/
1828 const char *readdirname(SMB_STRUCT_DIR
*p
)
1830 SMB_STRUCT_DIRENT
*ptr
;
1836 ptr
= (SMB_STRUCT_DIRENT
*)sys_readdir(p
);
1840 dname
= ptr
->d_name
;
1847 #ifdef HAVE_BROKEN_READDIR_NAME
1848 /* using /usr/ucb/cc is BAD */
1852 return talloc_strdup(talloc_tos(), dname
);
1855 /*******************************************************************
1856 Utility function used to decide if the last component
1857 of a path matches a (possibly wildcarded) entry in a namelist.
1858 ********************************************************************/
1860 bool is_in_path(const char *name
, name_compare_entry
*namelist
, bool case_sensitive
)
1862 const char *last_component
;
1864 /* if we have no list it's obviously not in the path */
1865 if((namelist
== NULL
) || ((namelist
!= NULL
) && (namelist
[0].name
== NULL
))) {
1869 DEBUG(8, ("is_in_path: %s\n", name
));
1871 /* Get the last component of the unix name. */
1872 last_component
= strrchr_m(name
, '/');
1873 if (!last_component
) {
1874 last_component
= name
;
1876 last_component
++; /* Go past '/' */
1879 for(; namelist
->name
!= NULL
; namelist
++) {
1880 if(namelist
->is_wild
) {
1881 if (mask_match(last_component
, namelist
->name
, case_sensitive
)) {
1882 DEBUG(8,("is_in_path: mask match succeeded\n"));
1886 if((case_sensitive
&& (strcmp(last_component
, namelist
->name
) == 0))||
1887 (!case_sensitive
&& (StrCaseCmp(last_component
, namelist
->name
) == 0))) {
1888 DEBUG(8,("is_in_path: match succeeded\n"));
1893 DEBUG(8,("is_in_path: match not found\n"));
1897 /*******************************************************************
1898 Strip a '/' separated list into an array of
1899 name_compare_enties structures suitable for
1900 passing to is_in_path(). We do this for
1901 speed so we can pre-parse all the names in the list
1902 and don't do it for each call to is_in_path().
1903 namelist is modified here and is assumed to be
1904 a copy owned by the caller.
1905 We also check if the entry contains a wildcard to
1906 remove a potentially expensive call to mask_match
1908 ********************************************************************/
1910 void set_namearray(name_compare_entry
**ppname_array
, const char *namelist
)
1913 const char *nameptr
= namelist
;
1914 int num_entries
= 0;
1917 (*ppname_array
) = NULL
;
1919 if((nameptr
== NULL
) || ((nameptr
!= NULL
) && (*nameptr
== '\0')))
1922 /* We need to make two passes over the string. The
1923 first to count the number of elements, the second
1928 if ( *nameptr
== '/' ) {
1929 /* cope with multiple (useless) /s) */
1933 /* find the next / */
1934 name_end
= strchr_m(nameptr
, '/');
1936 /* oops - the last check for a / didn't find one. */
1937 if (name_end
== NULL
)
1940 /* next segment please */
1941 nameptr
= name_end
+ 1;
1945 if(num_entries
== 0)
1948 if(( (*ppname_array
) = SMB_MALLOC_ARRAY(name_compare_entry
, num_entries
+ 1)) == NULL
) {
1949 DEBUG(0,("set_namearray: malloc fail\n"));
1953 /* Now copy out the names */
1957 if ( *nameptr
== '/' ) {
1958 /* cope with multiple (useless) /s) */
1962 /* find the next / */
1963 if ((name_end
= strchr_m(nameptr
, '/')) != NULL
)
1966 /* oops - the last check for a / didn't find one. */
1967 if(name_end
== NULL
)
1970 (*ppname_array
)[i
].is_wild
= ms_has_wild(nameptr
);
1971 if(((*ppname_array
)[i
].name
= SMB_STRDUP(nameptr
)) == NULL
) {
1972 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1976 /* next segment please */
1977 nameptr
= name_end
+ 1;
1981 (*ppname_array
)[i
].name
= NULL
;
1986 /****************************************************************************
1987 Routine to free a namearray.
1988 ****************************************************************************/
1990 void free_namearray(name_compare_entry
*name_array
)
1994 if(name_array
== NULL
)
1997 for(i
=0; name_array
[i
].name
!=NULL
; i
++)
1998 SAFE_FREE(name_array
[i
].name
);
1999 SAFE_FREE(name_array
);
2003 #define DBGC_CLASS DBGC_LOCKING
2005 /****************************************************************************
2006 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
2007 is dealt with in posix.c
2008 Returns True if the lock was granted, False otherwise.
2009 ****************************************************************************/
2011 bool fcntl_lock(int fd
, int op
, SMB_OFF_T offset
, SMB_OFF_T count
, int type
)
2013 SMB_STRUCT_FLOCK lock
;
2016 DEBUG(8,("fcntl_lock fd=%d op=%d offset=%.0f count=%.0f type=%d\n",
2017 fd
,op
,(double)offset
,(double)count
,type
));
2020 lock
.l_whence
= SEEK_SET
;
2021 lock
.l_start
= offset
;
2025 ret
= sys_fcntl_ptr(fd
,op
,&lock
);
2029 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
2030 (double)offset
,(double)count
,op
,type
,strerror(errno
)));
2035 /* everything went OK */
2036 DEBUG(8,("fcntl_lock: Lock call successful\n"));
2041 /****************************************************************************
2042 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
2043 is dealt with in posix.c
2044 Returns True if we have information regarding this lock region (and returns
2045 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
2046 ****************************************************************************/
2048 bool fcntl_getlock(int fd
, SMB_OFF_T
*poffset
, SMB_OFF_T
*pcount
, int *ptype
, pid_t
*ppid
)
2050 SMB_STRUCT_FLOCK lock
;
2053 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
2054 fd
,(double)*poffset
,(double)*pcount
,*ptype
));
2056 lock
.l_type
= *ptype
;
2057 lock
.l_whence
= SEEK_SET
;
2058 lock
.l_start
= *poffset
;
2059 lock
.l_len
= *pcount
;
2062 ret
= sys_fcntl_ptr(fd
,SMB_F_GETLK
,&lock
);
2066 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
2067 (double)*poffset
,(double)*pcount
,*ptype
,strerror(errno
)));
2072 *ptype
= lock
.l_type
;
2073 *poffset
= lock
.l_start
;
2074 *pcount
= lock
.l_len
;
2077 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
2078 fd
, (int)lock
.l_type
, (unsigned int)lock
.l_pid
));
2083 #define DBGC_CLASS DBGC_ALL
2085 /*******************************************************************
2086 Is the name specified one of my netbios names.
2087 Returns true if it is equal, false otherwise.
2088 ********************************************************************/
2090 bool is_myname(const char *s
)
2095 for (n
=0; my_netbios_names(n
); n
++) {
2096 if (strequal(my_netbios_names(n
), s
)) {
2101 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s
, ret
));
2105 /*******************************************************************
2106 Is the name specified our workgroup/domain.
2107 Returns true if it is equal, false otherwise.
2108 ********************************************************************/
2110 bool is_myworkgroup(const char *s
)
2114 if (strequal(s
, lp_workgroup())) {
2118 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s
, ret
));
2122 /*******************************************************************
2123 we distinguish between 2K and XP by the "Native Lan Manager" string
2124 WinXP => "Windows 2002 5.1"
2125 WinXP 64bit => "Windows XP 5.2"
2126 Win2k => "Windows 2000 5.0"
2127 NT4 => "Windows NT 4.0"
2128 Win9x => "Windows 4.0"
2129 Windows 2003 doesn't set the native lan manager string but
2130 they do set the domain to "Windows 2003 5.2" (probably a bug).
2131 ********************************************************************/
2133 void ra_lanman_string( const char *native_lanman
)
2135 if ( strcmp( native_lanman
, "Windows 2002 5.1" ) == 0 )
2136 set_remote_arch( RA_WINXP
);
2137 else if ( strcmp( native_lanman
, "Windows XP 5.2" ) == 0 )
2138 set_remote_arch( RA_WINXP64
);
2139 else if ( strcmp( native_lanman
, "Windows Server 2003 5.2" ) == 0 )
2140 set_remote_arch( RA_WIN2K3
);
2143 static const char *remote_arch_str
;
2145 const char *get_remote_arch_str(void)
2147 if (!remote_arch_str
) {
2150 return remote_arch_str
;
2153 /*******************************************************************
2154 Set the horrid remote_arch string based on an enum.
2155 ********************************************************************/
2157 void set_remote_arch(enum remote_arch_types type
)
2162 remote_arch_str
= "WfWg";
2165 remote_arch_str
= "OS2";
2168 remote_arch_str
= "Win95";
2171 remote_arch_str
= "WinNT";
2174 remote_arch_str
= "Win2K";
2177 remote_arch_str
= "WinXP";
2180 remote_arch_str
= "WinXP64";
2183 remote_arch_str
= "Win2K3";
2186 remote_arch_str
= "Vista";
2189 remote_arch_str
= "Samba";
2192 remote_arch_str
= "CIFSFS";
2195 ra_type
= RA_UNKNOWN
;
2196 remote_arch_str
= "UNKNOWN";
2200 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
2204 /*******************************************************************
2205 Get the remote_arch type.
2206 ********************************************************************/
2208 enum remote_arch_types
get_remote_arch(void)
2213 void print_asc(int level
, const unsigned char *buf
,int len
)
2217 DEBUG(level
,("%c", isprint(buf
[i
])?buf
[i
]:'.'));
2220 void dump_data(int level
, const unsigned char *buf1
,int len
)
2222 const unsigned char *buf
= (const unsigned char *)buf1
;
2226 if (!DEBUGLVL(level
)) return;
2228 DEBUGADD(level
,("[%03X] ",i
));
2230 DEBUGADD(level
,("%02X ",(int)buf
[i
]));
2232 if (i
%8 == 0) DEBUGADD(level
,(" "));
2234 print_asc(level
,&buf
[i
-16],8); DEBUGADD(level
,(" "));
2235 print_asc(level
,&buf
[i
-8],8); DEBUGADD(level
,("\n"));
2236 if (i
<len
) DEBUGADD(level
,("[%03X] ",i
));
2242 DEBUGADD(level
,(" "));
2243 if (n
>8) DEBUGADD(level
,(" "));
2244 while (n
--) DEBUGADD(level
,(" "));
2246 print_asc(level
,&buf
[i
-(i
%16)],n
); DEBUGADD(level
,( " " ));
2248 if (n
>0) print_asc(level
,&buf
[i
-n
],n
);
2249 DEBUGADD(level
,("\n"));
2253 void dump_data_pw(const char *msg
, const uchar
* data
, size_t len
)
2255 #ifdef DEBUG_PASSWORD
2256 DEBUG(11, ("%s", msg
));
2257 if (data
!= NULL
&& len
> 0)
2259 dump_data(11, data
, len
);
2264 const char *tab_depth(int level
, int depth
)
2266 if( CHECK_DEBUGLVL(level
) ) {
2267 dbgtext("%*s", depth
*4, "");
2272 /*****************************************************************************
2273 Provide a checksum on a string
2275 Input: s - the null-terminated character string for which the checksum
2278 Output: The checksum value calculated for s.
2279 *****************************************************************************/
2281 int str_checksum(const char *s
)
2289 res
^= (c
<< (i
% 15)) ^ (c
>> (15-(i
%15)));
2296 /*****************************************************************
2297 Zero a memory area then free it. Used to catch bugs faster.
2298 *****************************************************************/
2300 void zero_free(void *p
, size_t size
)
2306 /*****************************************************************
2307 Set our open file limit to a requested max and return the limit.
2308 *****************************************************************/
2310 int set_maxfiles(int requested_max
)
2312 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
2314 int saved_current_limit
;
2316 if(getrlimit(RLIMIT_NOFILE
, &rlp
)) {
2317 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
2320 return requested_max
;
2324 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
2325 * account for the extra fd we need
2326 * as well as the log files and standard
2327 * handles etc. Save the limit we want to set in case
2328 * we are running on an OS that doesn't support this limit (AIX)
2329 * which always returns RLIM_INFINITY for rlp.rlim_max.
2332 /* Try raising the hard (max) limit to the requested amount. */
2334 #if defined(RLIM_INFINITY)
2335 if (rlp
.rlim_max
!= RLIM_INFINITY
) {
2336 int orig_max
= rlp
.rlim_max
;
2338 if ( rlp
.rlim_max
< requested_max
)
2339 rlp
.rlim_max
= requested_max
;
2341 /* This failing is not an error - many systems (Linux) don't
2342 support our default request of 10,000 open files. JRA. */
2344 if(setrlimit(RLIMIT_NOFILE
, &rlp
)) {
2345 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
2346 (int)rlp
.rlim_max
, strerror(errno
) ));
2348 /* Set failed - restore original value from get. */
2349 rlp
.rlim_max
= orig_max
;
2354 /* Now try setting the soft (current) limit. */
2356 saved_current_limit
= rlp
.rlim_cur
= MIN(requested_max
,rlp
.rlim_max
);
2358 if(setrlimit(RLIMIT_NOFILE
, &rlp
)) {
2359 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
2360 (int)rlp
.rlim_cur
, strerror(errno
) ));
2362 return saved_current_limit
;
2365 if(getrlimit(RLIMIT_NOFILE
, &rlp
)) {
2366 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
2369 return saved_current_limit
;
2372 #if defined(RLIM_INFINITY)
2373 if(rlp
.rlim_cur
== RLIM_INFINITY
)
2374 return saved_current_limit
;
2377 if((int)rlp
.rlim_cur
> saved_current_limit
)
2378 return saved_current_limit
;
2380 return rlp
.rlim_cur
;
2381 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
2383 * No way to know - just guess...
2385 return requested_max
;
2389 /*****************************************************************
2390 Possibly replace mkstemp if it is broken.
2391 *****************************************************************/
2393 int smb_mkstemp(char *name_template
)
2395 #if HAVE_SECURE_MKSTEMP
2396 return mkstemp(name_template
);
2398 /* have a reasonable go at emulating it. Hope that
2399 the system mktemp() isn't completly hopeless */
2400 char *p
= mktemp(name_template
);
2403 return open(p
, O_CREAT
|O_EXCL
|O_RDWR
, 0600);
2407 /*****************************************************************
2408 malloc that aborts with smb_panic on fail or zero size.
2409 *****************************************************************/
2411 void *smb_xmalloc_array(size_t size
, unsigned int count
)
2415 smb_panic("smb_xmalloc_array: called with zero size");
2417 if (count
>= MAX_ALLOC_SIZE
/size
) {
2418 smb_panic("smb_xmalloc_array: alloc size too large");
2420 if ((p
= SMB_MALLOC(size
*count
)) == NULL
) {
2421 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
2422 (unsigned long)size
, (unsigned long)count
));
2423 smb_panic("smb_xmalloc_array: malloc failed");
2429 Memdup with smb_panic on fail.
2432 void *smb_xmemdup(const void *p
, size_t size
)
2435 p2
= SMB_XMALLOC_ARRAY(unsigned char,size
);
2436 memcpy(p2
, p
, size
);
2441 strdup that aborts on malloc fail.
2444 char *smb_xstrdup(const char *s
)
2446 #if defined(PARANOID_MALLOC_CHECKER)
2453 #define strdup rep_strdup
2456 char *s1
= strdup(s
);
2457 #if defined(PARANOID_MALLOC_CHECKER)
2461 #define strdup(s) __ERROR_DONT_USE_STRDUP_DIRECTLY
2464 smb_panic("smb_xstrdup: malloc failed");
2471 strndup that aborts on malloc fail.
2474 char *smb_xstrndup(const char *s
, size_t n
)
2476 #if defined(PARANOID_MALLOC_CHECKER)
2482 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
2484 #define strndup rep_strndup
2487 char *s1
= strndup(s
, n
);
2488 #if defined(PARANOID_MALLOC_CHECKER)
2492 #define strndup(s,n) __ERROR_DONT_USE_STRNDUP_DIRECTLY
2495 smb_panic("smb_xstrndup: malloc failed");
2501 vasprintf that aborts on malloc fail
2504 int smb_xvasprintf(char **ptr
, const char *format
, va_list ap
)
2511 n
= vasprintf(ptr
, format
, ap2
);
2512 if (n
== -1 || ! *ptr
) {
2513 smb_panic("smb_xvasprintf: out of memory");
2519 /*****************************************************************
2520 Like strdup but for memory.
2521 *****************************************************************/
2523 void *memdup(const void *p
, size_t size
)
2528 p2
= SMB_MALLOC(size
);
2531 memcpy(p2
, p
, size
);
2535 /*****************************************************************
2536 Get local hostname and cache result.
2537 *****************************************************************/
2539 char *myhostname(void)
2543 /* This is cached forever so
2544 * use NULL talloc ctx. */
2545 ret
= get_myname(NULL
);
2550 /*****************************************************************
2551 A useful function for returning a path in the Samba pid directory.
2552 *****************************************************************/
2554 static char *xx_path(const char *name
, const char *rootpath
)
2558 fname
= talloc_strdup(talloc_tos(), rootpath
);
2562 trim_string(fname
,"","/");
2564 if (!directory_exist(fname
,NULL
)) {
2568 return talloc_asprintf(talloc_tos(),
2574 /*****************************************************************
2575 A useful function for returning a path in the Samba lock directory.
2576 *****************************************************************/
2578 char *lock_path(const char *name
)
2580 return xx_path(name
, lp_lockdir());
2583 /*****************************************************************
2584 A useful function for returning a path in the Samba pid directory.
2585 *****************************************************************/
2587 char *pid_path(const char *name
)
2589 return xx_path(name
, lp_piddir());
2593 * @brief Returns an absolute path to a file in the Samba lib directory.
2595 * @param name File to find, relative to LIBDIR.
2597 * @retval Pointer to a string containing the full path.
2600 char *lib_path(const char *name
)
2602 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_LIBDIR(), name
);
2606 * @brief Returns an absolute path to a file in the Samba modules directory.
2608 * @param name File to find, relative to MODULESDIR.
2610 * @retval Pointer to a string containing the full path.
2613 char *modules_path(const char *name
)
2615 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_MODULESDIR(), name
);
2619 * @brief Returns an absolute path to a file in the Samba data directory.
2621 * @param name File to find, relative to CODEPAGEDIR.
2623 * @retval Pointer to a talloc'ed string containing the full path.
2626 char *data_path(const char *name
)
2628 return talloc_asprintf(talloc_tos(), "%s/%s", get_dyn_CODEPAGEDIR(), name
);
2631 /*****************************************************************
2632 a useful function for returning a path in the Samba state directory
2633 *****************************************************************/
2635 char *state_path(const char *name
)
2637 return xx_path(name
, get_dyn_STATEDIR());
2641 * @brief Returns the platform specific shared library extension.
2643 * @retval Pointer to a const char * containing the extension.
2646 const char *shlib_ext(void)
2648 return get_dyn_SHLIBEXT();
2651 /*******************************************************************
2652 Given a filename - get its directory name
2653 NB: Returned in static storage. Caveats:
2654 o If caller wishes to preserve, they should copy.
2655 ********************************************************************/
2657 char *parent_dirname(const char *path
)
2661 if (!parent_dirname_talloc(talloc_tos(), path
, &parent
, NULL
)) {
2668 bool parent_dirname_talloc(TALLOC_CTX
*mem_ctx
, const char *dir
,
2669 char **parent
, const char **name
)
2674 p
= strrchr_m(dir
, '/'); /* Find final '/', if any */
2677 if (!(*parent
= talloc_strdup(mem_ctx
, "."))) {
2688 if (!(*parent
= TALLOC_ARRAY(mem_ctx
, char, len
+1))) {
2691 memcpy(*parent
, dir
, len
);
2692 (*parent
)[len
] = '\0';
2700 /*******************************************************************
2701 Determine if a pattern contains any Microsoft wildcard characters.
2702 *******************************************************************/
2704 bool ms_has_wild(const char *s
)
2708 if (lp_posix_pathnames()) {
2709 /* With posix pathnames no characters are wild. */
2713 while ((c
= *s
++)) {
2726 bool ms_has_wild_w(const smb_ucs2_t
*s
)
2729 if (!s
) return False
;
2730 while ((c
= *s
++)) {
2732 case UCS2_CHAR('*'):
2733 case UCS2_CHAR('?'):
2734 case UCS2_CHAR('<'):
2735 case UCS2_CHAR('>'):
2736 case UCS2_CHAR('"'):
2743 /*******************************************************************
2744 A wrapper that handles case sensitivity and the special handling
2746 *******************************************************************/
2748 bool mask_match(const char *string
, const char *pattern
, bool is_case_sensitive
)
2750 if (strcmp(string
,"..") == 0)
2752 if (strcmp(pattern
,".") == 0)
2755 return ms_fnmatch(pattern
, string
, Protocol
<= PROTOCOL_LANMAN2
, is_case_sensitive
) == 0;
2758 /*******************************************************************
2759 A wrapper that handles case sensitivity and the special handling
2760 of the ".." name. Varient that is only called by old search code which requires
2761 pattern translation.
2762 *******************************************************************/
2764 bool mask_match_search(const char *string
, const char *pattern
, bool is_case_sensitive
)
2766 if (strcmp(string
,"..") == 0)
2768 if (strcmp(pattern
,".") == 0)
2771 return ms_fnmatch(pattern
, string
, True
, is_case_sensitive
) == 0;
2774 /*******************************************************************
2775 A wrapper that handles a list of patters and calls mask_match()
2776 on each. Returns True if any of the patterns match.
2777 *******************************************************************/
2779 bool mask_match_list(const char *string
, char **list
, int listLen
, bool is_case_sensitive
)
2781 while (listLen
-- > 0) {
2782 if (mask_match(string
, *list
++, is_case_sensitive
))
2788 /*********************************************************
2789 Recursive routine that is called by unix_wild_match.
2790 *********************************************************/
2792 static bool unix_do_match(const char *regexp
, const char *str
)
2796 for( p
= regexp
; *p
&& *str
; ) {
2807 * Look for a character matching
2808 * the one after the '*'.
2812 return true; /* Automatic match */
2815 while(*str
&& (*p
!= *str
))
2819 * Patch from weidel@multichart.de. In the case of the regexp
2820 * '*XX*' we want to ensure there are at least 2 'X' characters
2821 * in the string after the '*' for a match to be made.
2828 * Eat all the characters that match, but count how many there were.
2831 while(*str
&& (*p
== *str
)) {
2837 * Now check that if the regexp had n identical characters that
2838 * matchcount had at least that many matches.
2841 while ( *(p
+1) && (*(p
+1) == *p
)) {
2846 if ( matchcount
<= 0 )
2850 str
--; /* We've eaten the match char after the '*' */
2852 if(unix_do_match(p
, str
))
2874 if (!*p
&& str
[0] == '.' && str
[1] == 0)
2877 if (!*str
&& *p
== '?') {
2883 if(!*str
&& (*p
== '*' && p
[1] == '\0'))
2889 /*******************************************************************
2890 Simple case insensitive interface to a UNIX wildcard matcher.
2891 Returns True if match, False if not.
2892 *******************************************************************/
2894 bool unix_wild_match(const char *pattern
, const char *string
)
2896 TALLOC_CTX
*ctx
= talloc_stackframe();
2902 p2
= talloc_strdup(ctx
,pattern
);
2903 s2
= talloc_strdup(ctx
,string
);
2911 /* Remove any *? and ** from the pattern as they are meaningless */
2912 for(p
= p2
; *p
; p
++) {
2913 while( *p
== '*' && (p
[1] == '?' ||p
[1] == '*')) {
2914 memmove(&p
[1], &p
[2], strlen(&p
[2])+1);
2918 if (strequal(p2
,"*")) {
2923 ret
= unix_do_match(p2
, s2
);
2928 /**********************************************************************
2929 Converts a name to a fully qualified domain name.
2930 Returns true if lookup succeeded, false if not (then fqdn is set to name)
2931 Note we deliberately use gethostbyname here, not getaddrinfo as we want
2932 to examine the h_aliases and I don't know how to do that with getaddrinfo.
2933 ***********************************************************************/
2935 bool name_to_fqdn(fstring fqdn
, const char *name
)
2938 struct hostent
*hp
= gethostbyname(name
);
2940 if (!hp
|| !hp
->h_name
|| !*hp
->h_name
) {
2941 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name
));
2942 fstrcpy(fqdn
, name
);
2946 /* Find out if the fqdn is returned as an alias
2947 * to cope with /etc/hosts files where the first
2948 * name is not the fqdn but the short name */
2949 if (hp
->h_aliases
&& (! strchr_m(hp
->h_name
, '.'))) {
2951 for (i
= 0; hp
->h_aliases
[i
]; i
++) {
2952 if (strchr_m(hp
->h_aliases
[i
], '.')) {
2953 full
= hp
->h_aliases
[i
];
2958 if (full
&& (StrCaseCmp(full
, "localhost.localdomain") == 0)) {
2959 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
2960 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
2961 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
2962 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
2969 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name
, full
));
2970 fstrcpy(fqdn
, full
);
2974 /**********************************************************************
2975 Extension to talloc_get_type: Abort on type mismatch
2976 ***********************************************************************/
2978 void *talloc_check_name_abort(const void *ptr
, const char *name
)
2982 result
= talloc_check_name(ptr
, name
);
2986 DEBUG(0, ("Talloc type mismatch, expected %s, got %s\n",
2987 name
, talloc_get_name(ptr
)));
2988 smb_panic("talloc type mismatch");
2989 /* Keep the compiler happy */
2993 /**********************************************************************
2994 Append a DATA_BLOB to a talloc'ed object
2995 ***********************************************************************/
2997 void *talloc_append_blob(TALLOC_CTX
*mem_ctx
, void *buf
, DATA_BLOB blob
)
2999 size_t old_size
= 0;
3002 if (blob
.length
== 0) {
3007 old_size
= talloc_get_size(buf
);
3010 result
= (char *)TALLOC_REALLOC(mem_ctx
, buf
, old_size
+ blob
.length
);
3011 if (result
== NULL
) {
3015 memcpy(result
+ old_size
, blob
.data
, blob
.length
);
3019 uint32
map_share_mode_to_deny_mode(uint32 share_access
, uint32 private_options
)
3021 switch (share_access
& ~FILE_SHARE_DELETE
) {
3022 case FILE_SHARE_NONE
:
3024 case FILE_SHARE_READ
:
3026 case FILE_SHARE_WRITE
:
3028 case FILE_SHARE_READ
|FILE_SHARE_WRITE
:
3031 if (private_options
& NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
) {
3033 } else if (private_options
& NTCREATEX_OPTIONS_PRIVATE_DENY_FCB
) {
3040 pid_t
procid_to_pid(const struct server_id
*proc
)
3045 static uint32 my_vnn
= NONCLUSTER_VNN
;
3047 void set_my_vnn(uint32 vnn
)
3049 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn
));
3053 uint32
get_my_vnn(void)
3058 struct server_id
pid_to_procid(pid_t pid
)
3060 struct server_id result
;
3062 #ifdef CLUSTER_SUPPORT
3063 result
.vnn
= my_vnn
;
3068 struct server_id
procid_self(void)
3070 return pid_to_procid(sys_getpid());
3073 struct server_id
server_id_self(void)
3075 return procid_self();
3078 bool procid_equal(const struct server_id
*p1
, const struct server_id
*p2
)
3080 if (p1
->pid
!= p2
->pid
)
3082 #ifdef CLUSTER_SUPPORT
3083 if (p1
->vnn
!= p2
->vnn
)
3089 bool cluster_id_equal(const struct server_id
*id1
,
3090 const struct server_id
*id2
)
3092 return procid_equal(id1
, id2
);
3095 bool procid_is_me(const struct server_id
*pid
)
3097 if (pid
->pid
!= sys_getpid())
3099 #ifdef CLUSTER_SUPPORT
3100 if (pid
->vnn
!= my_vnn
)
3106 struct server_id
interpret_pid(const char *pid_string
)
3108 #ifdef CLUSTER_SUPPORT
3109 unsigned int vnn
, pid
;
3110 struct server_id result
;
3111 if (sscanf(pid_string
, "%u:%u", &vnn
, &pid
) == 2) {
3115 else if (sscanf(pid_string
, "%u", &pid
) == 1) {
3116 result
.vnn
= get_my_vnn();
3120 result
.vnn
= NONCLUSTER_VNN
;
3125 return pid_to_procid(atoi(pid_string
));
3129 char *procid_str(TALLOC_CTX
*mem_ctx
, const struct server_id
*pid
)
3131 #ifdef CLUSTER_SUPPORT
3132 if (pid
->vnn
== NONCLUSTER_VNN
) {
3133 return talloc_asprintf(mem_ctx
,
3138 return talloc_asprintf(mem_ctx
,
3144 return talloc_asprintf(mem_ctx
,
3150 char *procid_str_static(const struct server_id
*pid
)
3152 return procid_str(talloc_tos(), pid
);
3155 bool procid_valid(const struct server_id
*pid
)
3157 return (pid
->pid
!= -1);
3160 bool procid_is_local(const struct server_id
*pid
)
3162 #ifdef CLUSTER_SUPPORT
3163 return pid
->vnn
== my_vnn
;
3169 int this_is_smp(void)
3171 #if defined(HAVE_SYSCONF)
3173 #if defined(SYSCONF_SC_NPROC_ONLN)
3174 return (sysconf(_SC_NPROC_ONLN
) > 1) ? 1 : 0;
3175 #elif defined(SYSCONF_SC_NPROCESSORS_ONLN)
3176 return (sysconf(_SC_NPROCESSORS_ONLN
) > 1) ? 1 : 0;
3186 /****************************************************************
3187 Check if an offset into a buffer is safe.
3188 If this returns True it's safe to indirect into the byte at
3190 ****************************************************************/
3192 bool is_offset_safe(const char *buf_base
, size_t buf_len
, char *ptr
, size_t off
)
3194 const char *end_base
= buf_base
+ buf_len
;
3195 char *end_ptr
= ptr
+ off
;
3197 if (!buf_base
|| !ptr
) {
3201 if (end_base
< buf_base
|| end_ptr
< ptr
) {
3202 return False
; /* wrap. */
3205 if (end_ptr
< end_base
) {
3211 /****************************************************************
3212 Return a safe pointer into a buffer, or NULL.
3213 ****************************************************************/
3215 char *get_safe_ptr(const char *buf_base
, size_t buf_len
, char *ptr
, size_t off
)
3217 return is_offset_safe(buf_base
, buf_len
, ptr
, off
) ?
3221 /****************************************************************
3222 Return a safe pointer into a string within a buffer, or NULL.
3223 ****************************************************************/
3225 char *get_safe_str_ptr(const char *buf_base
, size_t buf_len
, char *ptr
, size_t off
)
3227 if (!is_offset_safe(buf_base
, buf_len
, ptr
, off
)) {
3230 /* Check if a valid string exists at this offset. */
3231 if (skip_string(buf_base
,buf_len
, ptr
+ off
) == NULL
) {
3237 /****************************************************************
3238 Return an SVAL at a pointer, or failval if beyond the end.
3239 ****************************************************************/
3241 int get_safe_SVAL(const char *buf_base
, size_t buf_len
, char *ptr
, size_t off
, int failval
)
3244 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
3247 if (!is_offset_safe(buf_base
, buf_len
, ptr
, off
+1)) {
3250 return SVAL(ptr
,off
);
3253 /****************************************************************
3254 Return an IVAL at a pointer, or failval if beyond the end.
3255 ****************************************************************/
3257 int get_safe_IVAL(const char *buf_base
, size_t buf_len
, char *ptr
, size_t off
, int failval
)
3260 * Note we use off+3 here, not off+4 as IVAL accesses
3261 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
3263 if (!is_offset_safe(buf_base
, buf_len
, ptr
, off
+3)) {
3266 return IVAL(ptr
,off
);
3269 /****************************************************************
3270 Split DOM\user into DOM and user. Do not mix with winbind variants of that
3271 call (they take care of winbind separator and other winbind specific settings).
3272 ****************************************************************/
3274 void split_domain_user(TALLOC_CTX
*mem_ctx
,
3275 const char *full_name
,
3279 const char *p
= NULL
;
3281 p
= strchr_m(full_name
, '\\');
3284 *domain
= talloc_strndup(mem_ctx
, full_name
,
3285 PTR_DIFF(p
, full_name
));
3286 *user
= talloc_strdup(mem_ctx
, p
+1);
3288 *domain
= talloc_strdup(mem_ctx
, "");
3289 *user
= talloc_strdup(mem_ctx
, full_name
);
3295 Disable these now we have checked all code paths
and ensured
3296 NULL returns on zero request
. JRA
.
3298 /****************************************************************
3299 talloc wrapper functions that guarentee a null pointer return
3301 ****************************************************************/
3303 #ifndef MAX_TALLOC_SIZE
3304 #define MAX_TALLOC_SIZE 0x10000000
3308 * talloc and zero memory.
3309 * - returns NULL if size is zero.
3312 void *_talloc_zero_zeronull(const void *ctx
, size_t size
, const char *name
)
3320 p
= talloc_named_const(ctx
, size
, name
);
3323 memset(p
, '\0', size
);
3330 * memdup with a talloc.
3331 * - returns NULL if size is zero.
3334 void *_talloc_memdup_zeronull(const void *t
, const void *p
, size_t size
, const char *name
)
3342 newp
= talloc_named_const(t
, size
, name
);
3344 memcpy(newp
, p
, size
);
3351 * alloc an array, checking for integer overflow in the array size.
3352 * - returns NULL if count or el_size are zero.
3355 void *_talloc_array_zeronull(const void *ctx
, size_t el_size
, unsigned count
, const char *name
)
3357 if (count
>= MAX_TALLOC_SIZE
/el_size
) {
3361 if (el_size
== 0 || count
== 0) {
3365 return talloc_named_const(ctx
, el_size
* count
, name
);
3369 * alloc an zero array, checking for integer overflow in the array size
3370 * - returns NULL if count or el_size are zero.
3373 void *_talloc_zero_array_zeronull(const void *ctx
, size_t el_size
, unsigned count
, const char *name
)
3375 if (count
>= MAX_TALLOC_SIZE
/el_size
) {
3379 if (el_size
== 0 || count
== 0) {
3383 return _talloc_zero(ctx
, el_size
* count
, name
);
3387 * Talloc wrapper that returns NULL if size == 0.
3389 void *talloc_zeronull(const void *context
, size_t size
, const char *name
)
3394 return talloc_named_const(context
, size
, name
);
3398 /* Split a path name into filename and stream name components. Canonicalise
3399 * such that an implicit $DATA token is always explicit.
3401 * The "specification" of this function can be found in the
3402 * run_local_stream_name() function in torture.c, I've tried those
3403 * combinations against a W2k3 server.
3406 NTSTATUS
split_ntfs_stream_name(TALLOC_CTX
*mem_ctx
, const char *fname
,
3407 char **pbase
, char **pstream
)
3410 char *stream
= NULL
;
3411 char *sname
; /* stream name */
3412 const char *stype
; /* stream type */
3414 DEBUG(10, ("split_ntfs_stream_name called for [%s]\n", fname
));
3416 sname
= strchr_m(fname
, ':');
3418 if (lp_posix_pathnames() || (sname
== NULL
)) {
3419 if (pbase
!= NULL
) {
3420 base
= talloc_strdup(mem_ctx
, fname
);
3421 NT_STATUS_HAVE_NO_MEMORY(base
);
3426 if (pbase
!= NULL
) {
3427 base
= talloc_strndup(mem_ctx
, fname
, PTR_DIFF(sname
, fname
));
3428 NT_STATUS_HAVE_NO_MEMORY(base
);
3433 stype
= strchr_m(sname
, ':');
3435 if (stype
== NULL
) {
3436 sname
= talloc_strdup(mem_ctx
, sname
);
3440 if (StrCaseCmp(stype
, ":$DATA") != 0) {
3442 * If there is an explicit stream type, so far we only
3443 * allow $DATA. Is there anything else allowed? -- vl
3445 DEBUG(10, ("[%s] is an invalid stream type\n", stype
));
3447 return NT_STATUS_OBJECT_NAME_INVALID
;
3449 sname
= talloc_strndup(mem_ctx
, sname
, PTR_DIFF(stype
, sname
));
3453 if (sname
== NULL
) {
3455 return NT_STATUS_NO_MEMORY
;
3458 if (sname
[0] == '\0') {
3460 * no stream name, so no stream
3465 if (pstream
!= NULL
) {
3466 stream
= talloc_asprintf(mem_ctx
, "%s:%s", sname
, stype
);
3467 if (stream
== NULL
) {
3470 return NT_STATUS_NO_MEMORY
;
3473 * upper-case the type field
3475 strupper_m(strchr_m(stream
, ':')+1);
3479 if (pbase
!= NULL
) {
3482 if (pstream
!= NULL
) {
3485 return NT_STATUS_OK
;
3488 bool is_valid_policy_hnd(const POLICY_HND
*hnd
)
3492 return (memcmp(&tmp
, hnd
, sizeof(tmp
)) != 0);
3495 bool policy_hnd_equal(const struct policy_handle
*hnd1
,
3496 const struct policy_handle
*hnd2
)
3498 if (!hnd1
|| !hnd2
) {
3502 return (memcmp(hnd1
, hnd2
, sizeof(*hnd1
)) == 0);
3505 /****************************************************************
3506 strip off leading '\\' from a hostname
3507 ****************************************************************/
3509 const char *strip_hostname(const char *s
)
3515 if (strlen_m(s
) < 3) {
3519 if (s
[0] == '\\') s
++;
3520 if (s
[0] == '\\') s
++;