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 "system/passwd.h"
26 #include "system/filesys.h"
28 #include "ctdbd_conn.h"
29 #include "../lib/util/util_pw.h"
32 /* Max allowable allococation - 256mb - 0x10000000 */
33 #define MAX_ALLOC_SIZE (1024*1024*256)
35 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
36 #ifdef WITH_NISPLUS_HOME
37 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
39 * The following lines are needed due to buggy include files
40 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
41 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
42 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
43 * an enum in /usr/include/rpcsvc/nis.h.
50 #if defined(GROUP_OBJ)
54 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
56 #include <rpcsvc/nis.h>
58 #endif /* WITH_NISPLUS_HOME */
59 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
61 static enum protocol_types Protocol = PROTOCOL_COREPLUS;
63 enum protocol_types get_Protocol(void)
68 void set_Protocol(enum protocol_types p)
73 static enum remote_arch_types ra_type = RA_UNKNOWN;
75 void gfree_all( void )
84 /*******************************************************************
85 Check if a file exists - call vfs_file_exist for samba files.
86 ********************************************************************/
88 bool file_exist_stat(const char *fname,SMB_STRUCT_STAT *sbuf,
89 bool fake_dir_create_times)
95 if (sys_stat(fname, sbuf, fake_dir_create_times) != 0)
98 return((S_ISREG(sbuf->st_ex_mode)) || (S_ISFIFO(sbuf->st_ex_mode)));
101 /*******************************************************************
102 Check if a unix domain socket exists - call vfs_file_exist for samba files.
103 ********************************************************************/
105 bool socket_exist(const char *fname)
108 if (sys_stat(fname, &st, false) != 0)
111 return S_ISSOCK(st.st_ex_mode);
114 /*******************************************************************
115 Returns the size in bytes of the named given the stat struct.
116 ********************************************************************/
118 uint64_t get_file_size_stat(const SMB_STRUCT_STAT *sbuf)
120 return sbuf->st_ex_size;
123 /*******************************************************************
124 Returns the size in bytes of the named file.
125 ********************************************************************/
127 SMB_OFF_T get_file_size(char *file_name)
131 if (sys_stat(file_name, &buf, false) != 0)
132 return (SMB_OFF_T)-1;
133 return get_file_size_stat(&buf);
136 /*******************************************************************
137 Show a smb message structure.
138 ********************************************************************/
140 void show_msg(const char *buf)
148 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
150 (int)CVAL(buf,smb_com),
151 (int)CVAL(buf,smb_rcls),
152 (int)CVAL(buf,smb_reh),
153 (int)SVAL(buf,smb_err),
154 (int)CVAL(buf,smb_flg),
155 (int)SVAL(buf,smb_flg2)));
156 DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
157 (int)SVAL(buf,smb_tid),
158 (int)SVAL(buf,smb_pid),
159 (int)SVAL(buf,smb_uid),
160 (int)SVAL(buf,smb_mid)));
161 DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
163 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
164 DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
165 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
167 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
169 DEBUGADD(5,("smb_bcc=%d\n",bcc));
177 dump_data(10, (const uint8 *)smb_buf_const(buf), bcc);
180 /*******************************************************************
181 Set the length and marker of an encrypted smb packet.
182 ********************************************************************/
184 void smb_set_enclen(char *buf,int len,uint16 enc_ctx_num)
186 _smb_setlen(buf,len);
190 SSVAL(buf,6,enc_ctx_num);
193 /*******************************************************************
194 Set the length and marker of an smb packet.
195 ********************************************************************/
197 void smb_setlen(char *buf,int len)
199 _smb_setlen(buf,len);
207 /*******************************************************************
208 Setup only the byte count for a smb message.
209 ********************************************************************/
211 int set_message_bcc(char *buf,int num_bytes)
213 int num_words = CVAL(buf,smb_wct);
214 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
215 _smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
216 return (smb_size + num_words*2 + num_bytes);
219 /*******************************************************************
220 Add a data blob to the end of a smb_buf, adjusting bcc and smb_len.
221 Return the bytes added
222 ********************************************************************/
224 ssize_t message_push_blob(uint8 **outbuf, DATA_BLOB blob)
226 size_t newlen = smb_len(*outbuf) + 4 + blob.length;
229 if (!(tmp = talloc_realloc(NULL, *outbuf, uint8, newlen))) {
230 DEBUG(0, ("talloc failed\n"));
235 memcpy(tmp + smb_len(tmp) + 4, blob.data, blob.length);
236 set_message_bcc((char *)tmp, smb_buflen(tmp) + blob.length);
240 /*******************************************************************
241 Reduce a file name, removing .. elements.
242 ********************************************************************/
244 static char *dos_clean_name(TALLOC_CTX *ctx, const char *s)
249 DEBUG(3,("dos_clean_name [%s]\n",s));
251 /* remove any double slashes */
252 str = talloc_all_string_sub(ctx, s, "\\\\", "\\");
257 /* Remove leading .\\ characters */
258 if(strncmp(str, ".\\", 2) == 0) {
259 trim_string(str, ".\\", NULL);
261 str = talloc_strdup(ctx, ".\\");
268 while ((p = strstr_m(str,"\\..\\")) != NULL) {
274 if ((p=strrchr_m(str,'\\')) != NULL) {
279 str = talloc_asprintf(ctx,
288 trim_string(str,NULL,"\\..");
289 return talloc_all_string_sub(ctx, str, "\\.\\", "\\");
292 /*******************************************************************
293 Reduce a file name, removing .. elements.
294 ********************************************************************/
296 char *unix_clean_name(TALLOC_CTX *ctx, const char *s)
301 DEBUG(3,("unix_clean_name [%s]\n",s));
303 /* remove any double slashes */
304 str = talloc_all_string_sub(ctx, s, "//","/");
309 /* Remove leading ./ characters */
310 if(strncmp(str, "./", 2) == 0) {
311 trim_string(str, "./", NULL);
313 str = talloc_strdup(ctx, "./");
320 while ((p = strstr_m(str,"/../")) != NULL) {
326 if ((p=strrchr_m(str,'/')) != NULL) {
331 str = talloc_asprintf(ctx,
340 trim_string(str,NULL,"/..");
341 return talloc_all_string_sub(ctx, str, "/./", "/");
344 char *clean_name(TALLOC_CTX *ctx, const char *s)
346 char *str = dos_clean_name(ctx, s);
350 return unix_clean_name(ctx, str);
353 /*******************************************************************
354 Write data into an fd at a given offset. Ignore seek errors.
355 ********************************************************************/
357 ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos)
362 if (pos == (SMB_OFF_T)-1) {
363 return write_data(fd, buffer, N);
365 #if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
367 ret = sys_pwrite(fd,buffer + total,N - total, pos);
368 if (ret == -1 && errno == ESPIPE) {
369 return write_data(fd, buffer + total,N - total);
372 DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
381 return (ssize_t)total;
383 /* Use lseek and write_data. */
384 if (sys_lseek(fd, pos, SEEK_SET) == -1) {
385 if (errno != ESPIPE) {
389 return write_data(fd, buffer, N);
394 NTSTATUS reinit_after_fork(struct messaging_context *msg_ctx,
395 struct event_context *ev_ctx,
397 bool parent_longlived)
399 NTSTATUS status = NT_STATUS_OK;
401 /* Reset the state of the random
402 * number generation system, so
403 * children do not get the same random
404 * numbers as each other */
405 set_need_random_reseed();
407 /* tdb needs special fork handling */
408 if (tdb_reopen_all(parent_longlived ? 1 : 0) == -1) {
409 DEBUG(0,("tdb_reopen_all failed.\n"));
410 status = NT_STATUS_OPEN_FAILED;
414 if (ev_ctx && tevent_re_initialise(ev_ctx) != 0) {
415 smb_panic(__location__ ": Failed to re-initialise event context");
420 * For clustering, we need to re-init our ctdbd connection after the
423 status = messaging_reinit(msg_ctx, id);
424 if (!NT_STATUS_IS_OK(status)) {
425 DEBUG(0,("messaging_reinit() failed: %s\n",
433 /****************************************************************************
434 (Hopefully) efficient array append.
435 ****************************************************************************/
437 void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
438 void *element, void *_array, uint32 *num_elements,
441 void **array = (void **)_array;
443 if (*array_size < 0) {
447 if (*array == NULL) {
448 if (*array_size == 0) {
452 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
456 *array = TALLOC(mem_ctx, element_size * (*array_size));
457 if (*array == NULL) {
462 if (*num_elements == *array_size) {
465 if (*array_size >= MAX_ALLOC_SIZE/element_size) {
469 *array = TALLOC_REALLOC(mem_ctx, *array,
470 element_size * (*array_size));
472 if (*array == NULL) {
477 memcpy((char *)(*array) + element_size*(*num_elements),
478 element, element_size);
488 /****************************************************************************
489 Get my own domain name, or "" if we have none.
490 ****************************************************************************/
492 char *get_mydnsdomname(TALLOC_CTX *ctx)
497 domname = get_mydnsfullname();
502 p = strchr_m(domname, '.');
505 return talloc_strdup(ctx, p);
507 return talloc_strdup(ctx, "");
511 /****************************************************************************
512 Interpret a protocol description string, with a default.
513 ****************************************************************************/
515 int interpret_protocol(const char *str,int def)
517 if (strequal(str,"NT1"))
518 return(PROTOCOL_NT1);
519 if (strequal(str,"LANMAN2"))
520 return(PROTOCOL_LANMAN2);
521 if (strequal(str,"LANMAN1"))
522 return(PROTOCOL_LANMAN1);
523 if (strequal(str,"CORE"))
524 return(PROTOCOL_CORE);
525 if (strequal(str,"COREPLUS"))
526 return(PROTOCOL_COREPLUS);
527 if (strequal(str,"CORE+"))
528 return(PROTOCOL_COREPLUS);
530 DEBUG(0,("Unrecognised protocol level %s\n",str));
536 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
537 /******************************************************************
538 Remove any mount options such as -rsize=2048,wsize=2048 etc.
539 Based on a fix from <Thomas.Hepper@icem.de>.
540 Returns a malloc'ed string.
541 *******************************************************************/
543 static char *strip_mount_options(TALLOC_CTX *ctx, const char *str)
547 while(*p && !isspace(*p))
549 while(*p && isspace(*p))
552 return talloc_strdup(ctx, p);
558 /*******************************************************************
559 Patch from jkf@soton.ac.uk
560 Split Luke's automount_server into YP lookup and string splitter
561 so can easily implement automount_path().
562 Returns a malloc'ed string.
563 *******************************************************************/
565 #ifdef WITH_NISPLUS_HOME
566 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
570 char *nis_map = (char *)lp_nis_home_map_name();
572 char buffer[NIS_MAXATTRVAL + 1];
577 snprintf(buffer, sizeof(buffer), "[key=%s],%s", user_name, nis_map);
578 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
580 if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
581 if (result->status != NIS_SUCCESS) {
582 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
584 object = result->objects.objects_val;
585 if (object->zo_data.zo_type == ENTRY_OBJ) {
586 entry = &object->zo_data.objdata_u.en_data;
587 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
588 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
590 value = talloc_strdup(ctx,
591 entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
593 nis_freeresult(result);
596 value = talloc_string_sub(ctx,
603 nis_freeresult(result);
606 value = strip_mount_options(ctx, value);
607 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n",
612 #else /* WITH_NISPLUS_HOME */
614 char *automount_lookup(TALLOC_CTX *ctx, const char *user_name)
618 int nis_error; /* returned by yp all functions */
619 char *nis_result; /* yp_match inits this */
620 int nis_result_len; /* and set this */
621 char *nis_domain; /* yp_get_default_domain inits this */
622 char *nis_map = (char *)lp_nis_home_map_name();
624 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
625 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
629 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
631 if ((nis_error = yp_match(nis_domain, nis_map, user_name,
632 strlen(user_name), &nis_result,
633 &nis_result_len)) == 0) {
634 if (nis_result_len > 0 && nis_result[nis_result_len] == '\n') {
635 nis_result[nis_result_len] = '\0';
637 value = talloc_strdup(ctx, nis_result);
641 value = strip_mount_options(ctx, value);
642 } else if(nis_error == YPERR_KEY) {
643 DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
644 user_name, nis_map));
645 DEBUG(3, ("using defaults for server and home directory\n"));
647 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
648 yperr_string(nis_error), user_name, nis_map));
652 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, value));
656 #endif /* WITH_NISPLUS_HOME */
659 /****************************************************************************
660 Check if a process exists. Does this work on all unixes?
661 ****************************************************************************/
663 bool process_exists(const struct server_id pid)
665 if (procid_is_me(&pid)) {
669 if (procid_is_local(&pid)) {
670 return (kill(pid.pid,0) == 0 || errno != ESRCH);
673 #ifdef CLUSTER_SUPPORT
674 return ctdbd_process_exists(messaging_ctdbd_connection(),
681 /*******************************************************************
682 Convert a uid into a user name.
683 ********************************************************************/
685 const char *uidtoname(uid_t uid)
687 TALLOC_CTX *ctx = talloc_tos();
689 struct passwd *pass = NULL;
691 pass = getpwuid_alloc(ctx,uid);
693 name = talloc_strdup(ctx,pass->pw_name);
696 name = talloc_asprintf(ctx,
703 /*******************************************************************
704 Convert a gid into a group name.
705 ********************************************************************/
707 char *gidtoname(gid_t gid)
713 return talloc_strdup(talloc_tos(), grp->gr_name);
716 return talloc_asprintf(talloc_tos(),
722 /*******************************************************************
723 Convert a user name into a uid.
724 ********************************************************************/
726 uid_t nametouid(const char *name)
732 pass = Get_Pwnam_alloc(talloc_tos(), name);
739 u = (uid_t)strtol(name, &p, 0);
740 if ((p != name) && (*p == '\0'))
746 /*******************************************************************
747 Convert a name to a gid_t if possible. Return -1 if not a group.
748 ********************************************************************/
750 gid_t nametogid(const char *name)
756 g = (gid_t)strtol(name, &p, 0);
757 if ((p != name) && (*p == '\0'))
760 grp = sys_getgrnam(name);
766 /*******************************************************************
767 Something really nasty happened - panic !
768 ********************************************************************/
770 void smb_panic_s3(const char *why)
775 DEBUG(0,("PANIC (pid %llu): %s\n",
776 (unsigned long long)sys_getpid(), why));
779 cmd = lp_panic_action();
781 DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
782 result = system(cmd);
785 DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
788 DEBUG(0, ("smb_panic(): action returned status %d\n",
789 WEXITSTATUS(result)));
795 /*******************************************************************
796 Print a backtrace of the stack to the debug log. This function
797 DELIBERATELY LEAKS MEMORY. The expectation is that you should
798 exit shortly after calling it.
799 ********************************************************************/
801 #ifdef HAVE_LIBUNWIND_H
802 #include <libunwind.h>
805 #ifdef HAVE_EXECINFO_H
806 #include <execinfo.h>
813 void log_stack_trace(void)
815 #ifdef HAVE_LIBUNWIND
816 /* Try to use libunwind before any other technique since on ia64
817 * libunwind correctly walks the stack in more circumstances than
825 unw_word_t ip, sp, off;
827 procname[sizeof(procname) - 1] = '\0';
829 if (unw_getcontext(&uc) != 0) {
830 goto libunwind_failed;
833 if (unw_init_local(&cursor, &uc) != 0) {
834 goto libunwind_failed;
837 DEBUG(0, ("BACKTRACE:\n"));
841 unw_get_reg(&cursor, UNW_REG_IP, &ip);
842 unw_get_reg(&cursor, UNW_REG_SP, &sp);
844 switch (unw_get_proc_name(&cursor,
845 procname, sizeof(procname) - 1, &off) ) {
849 /* Name truncated. */
850 DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
851 i, procname, (long long)off,
852 (long long)ip, (long long) sp));
855 /* case -UNW_ENOINFO: */
856 /* case -UNW_EUNSPEC: */
857 /* No symbol name found. */
858 DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
859 i, "<unknown symbol>",
860 (long long)ip, (long long) sp));
863 } while (unw_step(&cursor) > 0);
868 DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
870 #elif HAVE_BACKTRACE_SYMBOLS
871 void *backtrace_stack[BACKTRACE_STACK_SIZE];
872 size_t backtrace_size;
873 char **backtrace_strings;
875 /* get the backtrace (stack frames) */
876 backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
877 backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
879 DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
880 (unsigned long)backtrace_size));
882 if (backtrace_strings) {
885 for (i = 0; i < backtrace_size; i++)
886 DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
888 /* Leak the backtrace_strings, rather than risk what free() might do */
893 /* The IRIX libexc library provides an API for unwinding the stack. See
894 * libexc(3) for details. Apparantly trace_back_stack leaks memory, but
895 * since we are about to abort anyway, it hardly matters.
898 #define NAMESIZE 32 /* Arbitrary */
900 __uint64_t addrs[BACKTRACE_STACK_SIZE];
901 char * names[BACKTRACE_STACK_SIZE];
902 char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
911 /* We need to be root so we can open our /proc entry to walk
912 * our stack. It also helps when we want to dump core.
916 for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
917 names[i] = namebuf + (i * NAMESIZE);
920 levels = trace_back_stack(0, addrs, names,
921 BACKTRACE_STACK_SIZE, NAMESIZE - 1);
923 DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
924 for (i = 0; i < levels; i++) {
925 DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
930 DEBUG(0, ("unable to produce a stack trace on this platform\n"));
934 /*******************************************************************
935 A readdir wrapper which just returns the file name.
936 ********************************************************************/
938 const char *readdirname(SMB_STRUCT_DIR *p)
940 SMB_STRUCT_DIRENT *ptr;
946 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
957 #ifdef HAVE_BROKEN_READDIR_NAME
958 /* using /usr/ucb/cc is BAD */
962 return talloc_strdup(talloc_tos(), dname);
965 /*******************************************************************
966 Utility function used to decide if the last component
967 of a path matches a (possibly wildcarded) entry in a namelist.
968 ********************************************************************/
970 bool is_in_path(const char *name, name_compare_entry *namelist, bool case_sensitive)
972 const char *last_component;
974 /* if we have no list it's obviously not in the path */
975 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
979 DEBUG(8, ("is_in_path: %s\n", name));
981 /* Get the last component of the unix name. */
982 last_component = strrchr_m(name, '/');
983 if (!last_component) {
984 last_component = name;
986 last_component++; /* Go past '/' */
989 for(; namelist->name != NULL; namelist++) {
990 if(namelist->is_wild) {
991 if (mask_match(last_component, namelist->name, case_sensitive)) {
992 DEBUG(8,("is_in_path: mask match succeeded\n"));
996 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
997 (!case_sensitive && (strcasecmp_m(last_component, namelist->name) == 0))) {
998 DEBUG(8,("is_in_path: match succeeded\n"));
1003 DEBUG(8,("is_in_path: match not found\n"));
1007 /*******************************************************************
1008 Strip a '/' separated list into an array of
1009 name_compare_enties structures suitable for
1010 passing to is_in_path(). We do this for
1011 speed so we can pre-parse all the names in the list
1012 and don't do it for each call to is_in_path().
1013 We also check if the entry contains a wildcard to
1014 remove a potentially expensive call to mask_match
1016 ********************************************************************/
1018 void set_namearray(name_compare_entry **ppname_array, const char *namelist_in)
1023 int num_entries = 0;
1026 (*ppname_array) = NULL;
1028 if((namelist_in == NULL ) || ((namelist_in != NULL) && (*namelist_in == '\0')))
1031 namelist = talloc_strdup(talloc_tos(), namelist_in);
1032 if (namelist == NULL) {
1033 DEBUG(0,("set_namearray: talloc fail\n"));
1038 /* We need to make two passes over the string. The
1039 first to count the number of elements, the second
1044 if ( *nameptr == '/' ) {
1045 /* cope with multiple (useless) /s) */
1049 /* anything left? */
1050 if ( *nameptr == '\0' )
1053 /* find the next '/' or consume remaining */
1054 name_end = strchr_m(nameptr, '/');
1055 if (name_end == NULL)
1056 name_end = (char *)nameptr + strlen(nameptr);
1058 /* next segment please */
1059 nameptr = name_end + 1;
1063 if(num_entries == 0) {
1064 talloc_free(namelist);
1068 if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
1069 DEBUG(0,("set_namearray: malloc fail\n"));
1070 talloc_free(namelist);
1074 /* Now copy out the names */
1078 if ( *nameptr == '/' ) {
1079 /* cope with multiple (useless) /s) */
1083 /* anything left? */
1084 if ( *nameptr == '\0' )
1087 /* find the next '/' or consume remaining */
1088 name_end = strchr_m(nameptr, '/');
1092 name_end = nameptr + strlen(nameptr);
1094 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1095 if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
1096 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1097 talloc_free(namelist);
1101 /* next segment please */
1102 nameptr = name_end + 1;
1106 (*ppname_array)[i].name = NULL;
1108 talloc_free(namelist);
1113 #define DBGC_CLASS DBGC_LOCKING
1115 /****************************************************************************
1116 Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
1117 is dealt with in posix.c
1118 Returns True if we have information regarding this lock region (and returns
1119 F_UNLCK in *ptype if the region is unlocked). False if the call failed.
1120 ****************************************************************************/
1122 bool fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
1124 SMB_STRUCT_FLOCK lock;
1127 DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
1128 fd,(double)*poffset,(double)*pcount,*ptype));
1130 lock.l_type = *ptype;
1131 lock.l_whence = SEEK_SET;
1132 lock.l_start = *poffset;
1133 lock.l_len = *pcount;
1136 ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock);
1140 DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
1141 (double)*poffset,(double)*pcount,*ptype,strerror(errno)));
1146 *ptype = lock.l_type;
1147 *poffset = lock.l_start;
1148 *pcount = lock.l_len;
1151 DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
1152 fd, (int)lock.l_type, (unsigned int)lock.l_pid));
1157 #define DBGC_CLASS DBGC_ALL
1159 /*******************************************************************
1160 Is the name specified one of my netbios names.
1161 Returns true if it is equal, false otherwise.
1162 ********************************************************************/
1164 bool is_myname(const char *s)
1169 for (n=0; my_netbios_names(n); n++) {
1170 if (strequal(my_netbios_names(n), s)) {
1175 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1179 /*******************************************************************
1180 Is the name specified our workgroup/domain.
1181 Returns true if it is equal, false otherwise.
1182 ********************************************************************/
1184 bool is_myworkgroup(const char *s)
1188 if (strequal(s, lp_workgroup())) {
1192 DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
1196 /*******************************************************************
1197 we distinguish between 2K and XP by the "Native Lan Manager" string
1198 WinXP => "Windows 2002 5.1"
1199 WinXP 64bit => "Windows XP 5.2"
1200 Win2k => "Windows 2000 5.0"
1201 NT4 => "Windows NT 4.0"
1202 Win9x => "Windows 4.0"
1203 Windows 2003 doesn't set the native lan manager string but
1204 they do set the domain to "Windows 2003 5.2" (probably a bug).
1205 ********************************************************************/
1207 void ra_lanman_string( const char *native_lanman )
1209 if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
1210 set_remote_arch( RA_WINXP );
1211 else if ( strcmp( native_lanman, "Windows XP 5.2" ) == 0 )
1212 set_remote_arch( RA_WINXP64 );
1213 else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
1214 set_remote_arch( RA_WIN2K3 );
1217 static const char *remote_arch_str;
1219 const char *get_remote_arch_str(void)
1221 if (!remote_arch_str) {
1224 return remote_arch_str;
1227 /*******************************************************************
1228 Set the horrid remote_arch string based on an enum.
1229 ********************************************************************/
1231 void set_remote_arch(enum remote_arch_types type)
1236 remote_arch_str = "WfWg";
1239 remote_arch_str = "OS2";
1242 remote_arch_str = "Win95";
1245 remote_arch_str = "WinNT";
1248 remote_arch_str = "Win2K";
1251 remote_arch_str = "WinXP";
1254 remote_arch_str = "WinXP64";
1257 remote_arch_str = "Win2K3";
1260 remote_arch_str = "Vista";
1263 remote_arch_str = "Samba";
1266 remote_arch_str = "CIFSFS";
1269 remote_arch_str = "OSX";
1272 ra_type = RA_UNKNOWN;
1273 remote_arch_str = "UNKNOWN";
1277 DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n",
1281 /*******************************************************************
1282 Get the remote_arch type.
1283 ********************************************************************/
1285 enum remote_arch_types get_remote_arch(void)
1290 const char *tab_depth(int level, int depth)
1292 if( CHECK_DEBUGLVL(level) ) {
1293 dbgtext("%*s", depth*4, "");
1298 /*****************************************************************************
1299 Provide a checksum on a string
1301 Input: s - the null-terminated character string for which the checksum
1304 Output: The checksum value calculated for s.
1305 *****************************************************************************/
1307 int str_checksum(const char *s)
1309 TDB_DATA key = string_tdb_data(s);
1310 return tdb_jenkins_hash(&key);
1313 /*****************************************************************
1314 Zero a memory area then free it. Used to catch bugs faster.
1315 *****************************************************************/
1317 void zero_free(void *p, size_t size)
1323 /*****************************************************************
1324 Set our open file limit to a requested max and return the limit.
1325 *****************************************************************/
1327 int set_maxfiles(int requested_max)
1329 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1331 int saved_current_limit;
1333 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1334 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1337 return requested_max;
1341 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1342 * account for the extra fd we need
1343 * as well as the log files and standard
1344 * handles etc. Save the limit we want to set in case
1345 * we are running on an OS that doesn't support this limit (AIX)
1346 * which always returns RLIM_INFINITY for rlp.rlim_max.
1349 /* Try raising the hard (max) limit to the requested amount. */
1351 #if defined(RLIM_INFINITY)
1352 if (rlp.rlim_max != RLIM_INFINITY) {
1353 int orig_max = rlp.rlim_max;
1355 if ( rlp.rlim_max < requested_max )
1356 rlp.rlim_max = requested_max;
1358 /* This failing is not an error - many systems (Linux) don't
1359 support our default request of 10,000 open files. JRA. */
1361 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1362 DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
1363 (int)rlp.rlim_max, strerror(errno) ));
1365 /* Set failed - restore original value from get. */
1366 rlp.rlim_max = orig_max;
1371 /* Now try setting the soft (current) limit. */
1373 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1375 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1376 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1377 (int)rlp.rlim_cur, strerror(errno) ));
1379 return saved_current_limit;
1382 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1383 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1386 return saved_current_limit;
1389 #if defined(RLIM_INFINITY)
1390 if(rlp.rlim_cur == RLIM_INFINITY)
1391 return saved_current_limit;
1394 if((int)rlp.rlim_cur > saved_current_limit)
1395 return saved_current_limit;
1397 return rlp.rlim_cur;
1398 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1400 * No way to know - just guess...
1402 return requested_max;
1406 /*****************************************************************
1407 malloc that aborts with smb_panic on fail or zero size.
1408 *****************************************************************/
1410 void *smb_xmalloc_array(size_t size, unsigned int count)
1414 smb_panic("smb_xmalloc_array: called with zero size");
1416 if (count >= MAX_ALLOC_SIZE/size) {
1417 smb_panic("smb_xmalloc_array: alloc size too large");
1419 if ((p = SMB_MALLOC(size*count)) == NULL) {
1420 DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
1421 (unsigned long)size, (unsigned long)count));
1422 smb_panic("smb_xmalloc_array: malloc failed");
1428 vasprintf that aborts on malloc fail
1431 int smb_xvasprintf(char **ptr, const char *format, va_list ap)
1438 n = vasprintf(ptr, format, ap2);
1440 if (n == -1 || ! *ptr) {
1441 smb_panic("smb_xvasprintf: out of memory");
1446 /*****************************************************************
1447 Get local hostname and cache result.
1448 *****************************************************************/
1450 char *myhostname(void)
1454 ret = get_myname(NULL);
1460 * @brief Returns an absolute path to a file concatenating the provided
1461 * @a rootpath and @a basename
1463 * @param name Filename, relative to @a rootpath
1465 * @retval Pointer to a string containing the full path.
1468 static char *xx_path(const char *name, const char *rootpath)
1472 fname = talloc_strdup(talloc_tos(), rootpath);
1476 trim_string(fname,"","/");
1478 if (!directory_exist(fname)) {
1479 if (!mkdir(fname,0755))
1480 DEBUG(1, ("Unable to create directory %s for file %s. "
1481 "Error was %s\n", fname, name, strerror(errno)));
1484 return talloc_asprintf(talloc_tos(),
1491 * @brief Returns an absolute path to a file in the Samba lock directory.
1493 * @param name File to find, relative to LOCKDIR.
1495 * @retval Pointer to a talloc'ed string containing the full path.
1498 char *lock_path(const char *name)
1500 return xx_path(name, lp_lockdir());
1504 * @brief Returns an absolute path to a file in the Samba pid directory.
1506 * @param name File to find, relative to PIDDIR.
1508 * @retval Pointer to a talloc'ed string containing the full path.
1511 char *pid_path(const char *name)
1513 return xx_path(name, lp_piddir());
1517 * @brief Returns an absolute path to a file in the Samba state directory.
1519 * @param name File to find, relative to STATEDIR.
1521 * @retval Pointer to a talloc'ed string containing the full path.
1524 char *state_path(const char *name)
1526 return xx_path(name, lp_statedir());
1530 * @brief Returns an absolute path to a file in the Samba cache directory.
1532 * @param name File to find, relative to CACHEDIR.
1534 * @retval Pointer to a talloc'ed string containing the full path.
1537 char *cache_path(const char *name)
1539 return xx_path(name, lp_cachedir());
1542 /*******************************************************************
1543 Given a filename - get its directory name
1544 ********************************************************************/
1546 bool parent_dirname(TALLOC_CTX *mem_ctx, const char *dir, char **parent,
1552 p = strrchr_m(dir, '/'); /* Find final '/', if any */
1555 if (!(*parent = talloc_strdup(mem_ctx, "."))) {
1566 if (!(*parent = (char *)TALLOC_MEMDUP(mem_ctx, dir, len+1))) {
1569 (*parent)[len] = '\0';
1577 /*******************************************************************
1578 Determine if a pattern contains any Microsoft wildcard characters.
1579 *******************************************************************/
1581 bool ms_has_wild(const char *s)
1585 if (lp_posix_pathnames()) {
1586 /* With posix pathnames no characters are wild. */
1590 while ((c = *s++)) {
1603 bool ms_has_wild_w(const smb_ucs2_t *s)
1606 if (!s) return False;
1607 while ((c = *s++)) {
1609 case UCS2_CHAR('*'):
1610 case UCS2_CHAR('?'):
1611 case UCS2_CHAR('<'):
1612 case UCS2_CHAR('>'):
1613 case UCS2_CHAR('"'):
1620 /*******************************************************************
1621 A wrapper that handles case sensitivity and the special handling
1623 *******************************************************************/
1625 bool mask_match(const char *string, const char *pattern, bool is_case_sensitive)
1627 if (ISDOTDOT(string))
1632 return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
1635 /*******************************************************************
1636 A wrapper that handles case sensitivity and the special handling
1637 of the ".." name. Varient that is only called by old search code which requires
1638 pattern translation.
1639 *******************************************************************/
1641 bool mask_match_search(const char *string, const char *pattern, bool is_case_sensitive)
1643 if (ISDOTDOT(string))
1648 return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
1651 /*******************************************************************
1652 A wrapper that handles a list of patters and calls mask_match()
1653 on each. Returns True if any of the patterns match.
1654 *******************************************************************/
1656 bool mask_match_list(const char *string, char **list, int listLen, bool is_case_sensitive)
1658 while (listLen-- > 0) {
1659 if (mask_match(string, *list++, is_case_sensitive))
1665 /*********************************************************
1666 Recursive routine that is called by unix_wild_match.
1667 *********************************************************/
1669 static bool unix_do_match(const char *regexp, const char *str)
1673 for( p = regexp; *p && *str; ) {
1684 * Look for a character matching
1685 * the one after the '*'.
1689 return true; /* Automatic match */
1692 while(*str && (*p != *str))
1696 * Patch from weidel@multichart.de. In the case of the regexp
1697 * '*XX*' we want to ensure there are at least 2 'X' characters
1698 * in the string after the '*' for a match to be made.
1705 * Eat all the characters that match, but count how many there were.
1708 while(*str && (*p == *str)) {
1714 * Now check that if the regexp had n identical characters that
1715 * matchcount had at least that many matches.
1718 while ( *(p+1) && (*(p+1) == *p)) {
1723 if ( matchcount <= 0 )
1727 str--; /* We've eaten the match char after the '*' */
1729 if(unix_do_match(p, str))
1751 if (!*p && str[0] == '.' && str[1] == 0)
1754 if (!*str && *p == '?') {
1760 if(!*str && (*p == '*' && p[1] == '\0'))
1766 /*******************************************************************
1767 Simple case insensitive interface to a UNIX wildcard matcher.
1768 Returns True if match, False if not.
1769 *******************************************************************/
1771 bool unix_wild_match(const char *pattern, const char *string)
1773 TALLOC_CTX *ctx = talloc_stackframe();
1779 p2 = talloc_strdup(ctx,pattern);
1780 s2 = talloc_strdup(ctx,string);
1788 /* Remove any *? and ** from the pattern as they are meaningless */
1789 for(p = p2; *p; p++) {
1790 while( *p == '*' && (p[1] == '?' ||p[1] == '*')) {
1791 memmove(&p[1], &p[2], strlen(&p[2])+1);
1795 if (strequal(p2,"*")) {
1800 ret = unix_do_match(p2, s2);
1805 /**********************************************************************
1806 Converts a name to a fully qualified domain name.
1807 Returns true if lookup succeeded, false if not (then fqdn is set to name)
1808 Note we deliberately use gethostbyname here, not getaddrinfo as we want
1809 to examine the h_aliases and I don't know how to do that with getaddrinfo.
1810 ***********************************************************************/
1812 bool name_to_fqdn(fstring fqdn, const char *name)
1815 struct hostent *hp = gethostbyname(name);
1817 if (!hp || !hp->h_name || !*hp->h_name) {
1818 DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
1819 fstrcpy(fqdn, name);
1823 /* Find out if the fqdn is returned as an alias
1824 * to cope with /etc/hosts files where the first
1825 * name is not the fqdn but the short name */
1826 if (hp->h_aliases && (! strchr_m(hp->h_name, '.'))) {
1828 for (i = 0; hp->h_aliases[i]; i++) {
1829 if (strchr_m(hp->h_aliases[i], '.')) {
1830 full = hp->h_aliases[i];
1835 if (full && (strcasecmp_m(full, "localhost.localdomain") == 0)) {
1836 DEBUG(1, ("WARNING: your /etc/hosts file may be broken!\n"));
1837 DEBUGADD(1, (" Specifing the machine hostname for address 127.0.0.1 may lead\n"));
1838 DEBUGADD(1, (" to Kerberos authentication problems as localhost.localdomain\n"));
1839 DEBUGADD(1, (" may end up being used instead of the real machine FQDN.\n"));
1846 DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, full));
1847 fstrcpy(fqdn, full);
1851 /**********************************************************************
1852 Append a DATA_BLOB to a talloc'ed object
1853 ***********************************************************************/
1855 void *talloc_append_blob(TALLOC_CTX *mem_ctx, void *buf, DATA_BLOB blob)
1857 size_t old_size = 0;
1860 if (blob.length == 0) {
1865 old_size = talloc_get_size(buf);
1868 result = (char *)TALLOC_REALLOC(mem_ctx, buf, old_size + blob.length);
1869 if (result == NULL) {
1873 memcpy(result + old_size, blob.data, blob.length);
1877 uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
1879 switch (share_access & ~FILE_SHARE_DELETE) {
1880 case FILE_SHARE_NONE:
1882 case FILE_SHARE_READ:
1884 case FILE_SHARE_WRITE:
1886 case FILE_SHARE_READ|FILE_SHARE_WRITE:
1889 if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
1891 } else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
1898 pid_t procid_to_pid(const struct server_id *proc)
1903 static uint32 my_vnn = NONCLUSTER_VNN;
1905 void set_my_vnn(uint32 vnn)
1907 DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn));
1911 uint32 get_my_vnn(void)
1916 static uint64_t my_unique_id = 0;
1918 void set_my_unique_id(uint64_t unique_id)
1920 my_unique_id = unique_id;
1923 struct server_id pid_to_procid(pid_t pid)
1925 struct server_id result;
1927 result.unique_id = my_unique_id;
1928 result.vnn = my_vnn;
1932 struct server_id procid_self(void)
1934 return pid_to_procid(sys_getpid());
1937 bool procid_equal(const struct server_id *p1, const struct server_id *p2)
1939 if (p1->pid != p2->pid)
1941 if (p1->vnn != p2->vnn)
1946 bool cluster_id_equal(const struct server_id *id1,
1947 const struct server_id *id2)
1949 return procid_equal(id1, id2);
1952 bool procid_is_me(const struct server_id *pid)
1954 if (pid->pid != sys_getpid())
1956 if (pid->vnn != my_vnn)
1961 struct server_id interpret_pid(const char *pid_string)
1963 struct server_id result;
1966 if (sscanf(pid_string, "%u:%d", &vnn, &pid) == 2) {
1970 else if (sscanf(pid_string, "%d", &pid) == 1) {
1971 result.vnn = get_my_vnn();
1975 result.vnn = NONCLUSTER_VNN;
1978 /* Assigning to result.pid may have overflowed
1979 Map negative pid to -1: i.e. error */
1980 if (result.pid < 0) {
1983 result.unique_id = 0;
1987 char *procid_str(TALLOC_CTX *mem_ctx, const struct server_id *pid)
1989 if (pid->vnn == NONCLUSTER_VNN) {
1990 return talloc_asprintf(mem_ctx,
1995 return talloc_asprintf(mem_ctx,
2002 char *procid_str_static(const struct server_id *pid)
2004 return procid_str(talloc_tos(), pid);
2007 bool procid_valid(const struct server_id *pid)
2009 return (pid->pid != -1);
2012 bool procid_is_local(const struct server_id *pid)
2014 return pid->vnn == my_vnn;
2017 /****************************************************************
2018 Check if offset/length fit into bufsize. Should probably be
2019 merged with is_offset_safe, but this would require a rewrite
2020 of lanman.c. Later :-)
2021 ****************************************************************/
2023 bool trans_oob(uint32_t bufsize, uint32_t offset, uint32_t length)
2025 if ((offset + length < offset) || (offset + length < length)) {
2029 if ((offset > bufsize) || (offset + length > bufsize)) {
2036 /****************************************************************
2037 Check if an offset into a buffer is safe.
2038 If this returns True it's safe to indirect into the byte at
2040 ****************************************************************/
2042 bool is_offset_safe(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2044 const char *end_base = buf_base + buf_len;
2045 char *end_ptr = ptr + off;
2047 if (!buf_base || !ptr) {
2051 if (end_base < buf_base || end_ptr < ptr) {
2052 return False; /* wrap. */
2055 if (end_ptr < end_base) {
2061 /****************************************************************
2062 Return a safe pointer into a buffer, or NULL.
2063 ****************************************************************/
2065 char *get_safe_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2067 return is_offset_safe(buf_base, buf_len, ptr, off) ?
2071 /****************************************************************
2072 Return a safe pointer into a string within a buffer, or NULL.
2073 ****************************************************************/
2075 char *get_safe_str_ptr(const char *buf_base, size_t buf_len, char *ptr, size_t off)
2077 if (!is_offset_safe(buf_base, buf_len, ptr, off)) {
2080 /* Check if a valid string exists at this offset. */
2081 if (skip_string(buf_base,buf_len, ptr + off) == NULL) {
2087 /****************************************************************
2088 Return an SVAL at a pointer, or failval if beyond the end.
2089 ****************************************************************/
2091 int get_safe_SVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2094 * Note we use off+1 here, not off+2 as SVAL accesses ptr[0] and ptr[1],
2097 if (!is_offset_safe(buf_base, buf_len, ptr, off+1)) {
2100 return SVAL(ptr,off);
2103 /****************************************************************
2104 Return an IVAL at a pointer, or failval if beyond the end.
2105 ****************************************************************/
2107 int get_safe_IVAL(const char *buf_base, size_t buf_len, char *ptr, size_t off, int failval)
2110 * Note we use off+3 here, not off+4 as IVAL accesses
2111 * ptr[0] ptr[1] ptr[2] ptr[3] NOT ptr[4].
2113 if (!is_offset_safe(buf_base, buf_len, ptr, off+3)) {
2116 return IVAL(ptr,off);
2119 /****************************************************************
2120 Split DOM\user into DOM and user. Do not mix with winbind variants of that
2121 call (they take care of winbind separator and other winbind specific settings).
2122 ****************************************************************/
2124 void split_domain_user(TALLOC_CTX *mem_ctx,
2125 const char *full_name,
2129 const char *p = NULL;
2131 p = strchr_m(full_name, '\\');
2134 *domain = talloc_strndup(mem_ctx, full_name,
2135 PTR_DIFF(p, full_name));
2136 *user = talloc_strdup(mem_ctx, p+1);
2138 *domain = talloc_strdup(mem_ctx, "");
2139 *user = talloc_strdup(mem_ctx, full_name);
2143 /****************************************************************
2144 strip off leading '\\' from a hostname
2145 ****************************************************************/
2147 const char *strip_hostname(const char *s)
2153 if (strlen_m(s) < 3) {
2157 if (s[0] == '\\') s++;
2158 if (s[0] == '\\') s++;
2163 bool tevent_req_poll_ntstatus(struct tevent_req *req,
2164 struct tevent_context *ev,
2167 bool ret = tevent_req_poll(req, ev);
2169 *status = map_nt_error_from_unix(errno);
2174 bool any_nt_status_not_ok(NTSTATUS err1, NTSTATUS err2, NTSTATUS *result)
2176 if (!NT_STATUS_IS_OK(err1)) {
2180 if (!NT_STATUS_IS_OK(err2)) {
2187 int timeval_to_msec(struct timeval t)
2189 return t.tv_sec * 1000 + (t.tv_usec+999) / 1000;
2192 /*******************************************************************
2193 Check a given DOS pathname is valid for a share.
2194 ********************************************************************/
2196 char *valid_share_pathname(TALLOC_CTX *ctx, const char *dos_pathname)
2200 if (!dos_pathname) {
2204 ptr = talloc_strdup(ctx, dos_pathname);
2208 /* Convert any '\' paths to '/' */
2210 ptr = unix_clean_name(ctx, ptr);
2215 /* NT is braindead - it wants a C: prefix to a pathname ! So strip it. */
2216 if (strlen(ptr) > 2 && ptr[1] == ':' && ptr[0] != '/')
2219 /* Only absolute paths allowed. */