mirror of
https://github.com/samba-team/samba.git
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826614ed16
the fastest clock available on uniprocessors.
(This used to be commit d448629282
)
2990 lines
71 KiB
C
2990 lines
71 KiB
C
/*
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Unix SMB/CIFS implementation.
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Samba utility functions
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) Jeremy Allison 2001-2002
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Copyright (C) Simo Sorce 2001
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Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
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Copyright (C) James Peach 2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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extern fstring local_machine;
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extern char *global_clobber_region_function;
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extern unsigned int global_clobber_region_line;
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extern fstring remote_arch;
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/* Max allowable allococation - 256mb - 0x10000000 */
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#define MAX_ALLOC_SIZE (1024*1024*256)
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#if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
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#ifdef WITH_NISPLUS_HOME
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#ifdef BROKEN_NISPLUS_INCLUDE_FILES
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/*
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* The following lines are needed due to buggy include files
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* in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
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* also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
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* Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
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* an enum in /usr/include/rpcsvc/nis.h.
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*/
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#if defined(GROUP)
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#undef GROUP
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#endif
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#if defined(GROUP_OBJ)
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#undef GROUP_OBJ
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#endif
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#endif /* BROKEN_NISPLUS_INCLUDE_FILES */
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#include <rpcsvc/nis.h>
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#endif /* WITH_NISPLUS_HOME */
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#endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
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enum protocol_types Protocol = PROTOCOL_COREPLUS;
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/* a default finfo structure to ensure all fields are sensible */
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file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
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/* this is used by the chaining code */
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int chain_size = 0;
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int trans_num = 0;
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static enum remote_arch_types ra_type = RA_UNKNOWN;
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pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
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/***********************************************************************
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Definitions for all names.
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***********************************************************************/
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static char *smb_myname;
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static char *smb_myworkgroup;
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static char *smb_scope;
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static int smb_num_netbios_names;
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static char **smb_my_netbios_names;
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/***********************************************************************
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Allocate and set myname. Ensure upper case.
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***********************************************************************/
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BOOL set_global_myname(const char *myname)
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{
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SAFE_FREE(smb_myname);
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smb_myname = SMB_STRDUP(myname);
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if (!smb_myname)
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return False;
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strupper_m(smb_myname);
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return True;
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}
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const char *global_myname(void)
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{
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return smb_myname;
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}
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/***********************************************************************
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Allocate and set myworkgroup. Ensure upper case.
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***********************************************************************/
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BOOL set_global_myworkgroup(const char *myworkgroup)
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{
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SAFE_FREE(smb_myworkgroup);
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smb_myworkgroup = SMB_STRDUP(myworkgroup);
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if (!smb_myworkgroup)
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return False;
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strupper_m(smb_myworkgroup);
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return True;
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}
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const char *lp_workgroup(void)
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{
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return smb_myworkgroup;
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}
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/***********************************************************************
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Allocate and set scope. Ensure upper case.
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***********************************************************************/
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BOOL set_global_scope(const char *scope)
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{
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SAFE_FREE(smb_scope);
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smb_scope = SMB_STRDUP(scope);
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if (!smb_scope)
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return False;
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strupper_m(smb_scope);
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return True;
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}
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/*********************************************************************
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Ensure scope is never null string.
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*********************************************************************/
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const char *global_scope(void)
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{
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if (!smb_scope)
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set_global_scope("");
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return smb_scope;
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}
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static void free_netbios_names_array(void)
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{
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int i;
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for (i = 0; i < smb_num_netbios_names; i++)
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SAFE_FREE(smb_my_netbios_names[i]);
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SAFE_FREE(smb_my_netbios_names);
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smb_num_netbios_names = 0;
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}
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static BOOL allocate_my_netbios_names_array(size_t number)
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{
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free_netbios_names_array();
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smb_num_netbios_names = number + 1;
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smb_my_netbios_names = SMB_MALLOC_ARRAY( char *, smb_num_netbios_names );
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if (!smb_my_netbios_names)
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return False;
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memset(smb_my_netbios_names, '\0', sizeof(char *) * smb_num_netbios_names);
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return True;
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}
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static BOOL set_my_netbios_names(const char *name, int i)
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{
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SAFE_FREE(smb_my_netbios_names[i]);
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smb_my_netbios_names[i] = SMB_STRDUP(name);
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if (!smb_my_netbios_names[i])
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return False;
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strupper_m(smb_my_netbios_names[i]);
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return True;
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}
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/***********************************************************************
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Free memory allocated to global objects
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***********************************************************************/
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void gfree_names(void)
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{
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SAFE_FREE( smb_myname );
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SAFE_FREE( smb_myworkgroup );
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SAFE_FREE( smb_scope );
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free_netbios_names_array();
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}
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void gfree_all( void )
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{
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gfree_names();
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gfree_loadparm();
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gfree_case_tables();
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gfree_debugsyms();
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gfree_charcnv();
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gfree_messsges();
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/* release the talloc null_context memory last */
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talloc_nc_free();
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}
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const char *my_netbios_names(int i)
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{
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return smb_my_netbios_names[i];
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}
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BOOL set_netbios_aliases(const char **str_array)
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{
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size_t namecount;
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/* Work out the max number of netbios aliases that we have */
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for( namecount=0; str_array && (str_array[namecount] != NULL); namecount++ )
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;
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if ( global_myname() && *global_myname())
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namecount++;
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/* Allocate space for the netbios aliases */
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if (!allocate_my_netbios_names_array(namecount))
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return False;
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/* Use the global_myname string first */
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namecount=0;
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if ( global_myname() && *global_myname()) {
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set_my_netbios_names( global_myname(), namecount );
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namecount++;
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}
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if (str_array) {
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size_t i;
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for ( i = 0; str_array[i] != NULL; i++) {
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size_t n;
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BOOL duplicate = False;
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/* Look for duplicates */
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for( n=0; n<namecount; n++ ) {
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if( strequal( str_array[i], my_netbios_names(n) ) ) {
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duplicate = True;
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break;
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}
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}
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if (!duplicate) {
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if (!set_my_netbios_names(str_array[i], namecount))
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return False;
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namecount++;
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}
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}
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}
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return True;
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}
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/****************************************************************************
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Common name initialization code.
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****************************************************************************/
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BOOL init_names(void)
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{
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char *p;
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int n;
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if (global_myname() == NULL || *global_myname() == '\0') {
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if (!set_global_myname(myhostname())) {
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DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
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return False;
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}
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}
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if (!set_netbios_aliases(lp_netbios_aliases())) {
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DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
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return False;
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}
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fstrcpy( local_machine, global_myname() );
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trim_char( local_machine, ' ', ' ' );
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p = strchr( local_machine, ' ' );
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if (p)
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*p = 0;
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strlower_m( local_machine );
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DEBUG( 5, ("Netbios name list:-\n") );
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for( n=0; my_netbios_names(n); n++ )
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DEBUGADD( 5, ( "my_netbios_names[%d]=\"%s\"\n", n, my_netbios_names(n) ) );
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return( True );
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}
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/**************************************************************************n
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Find a suitable temporary directory. The result should be copied immediately
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as it may be overwritten by a subsequent call.
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****************************************************************************/
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const char *tmpdir(void)
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{
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char *p;
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if ((p = getenv("TMPDIR")))
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return p;
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return "/tmp";
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}
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/****************************************************************************
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Add a gid to an array of gids if it's not already there.
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****************************************************************************/
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void add_gid_to_array_unique(TALLOC_CTX *mem_ctx, gid_t gid,
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gid_t **gids, size_t *num_gids)
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{
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int i;
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for (i=0; i<*num_gids; i++) {
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if ((*gids)[i] == gid)
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return;
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}
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if (mem_ctx != NULL) {
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*gids = TALLOC_REALLOC_ARRAY(mem_ctx, *gids, gid_t, *num_gids+1);
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} else {
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*gids = SMB_REALLOC_ARRAY(*gids, gid_t, *num_gids+1);
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}
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if (*gids == NULL) {
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return;
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}
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(*gids)[*num_gids] = gid;
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*num_gids += 1;
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}
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/****************************************************************************
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Like atoi but gets the value up to the separator character.
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****************************************************************************/
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static const char *Atoic(const char *p, int *n, const char *c)
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{
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if (!isdigit((int)*p)) {
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DEBUG(5, ("Atoic: malformed number\n"));
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return NULL;
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}
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(*n) = atoi(p);
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while ((*p) && isdigit((int)*p))
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p++;
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if (strchr_m(c, *p) == NULL) {
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DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
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return NULL;
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}
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return p;
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}
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/*************************************************************************
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Reads a list of numbers.
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*************************************************************************/
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const char *get_numlist(const char *p, uint32 **num, int *count)
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{
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int val;
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if (num == NULL || count == NULL)
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return NULL;
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(*count) = 0;
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(*num ) = NULL;
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while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':') {
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*num = SMB_REALLOC_ARRAY((*num), uint32, (*count)+1);
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if (!(*num)) {
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return NULL;
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}
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(*num)[(*count)] = val;
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(*count)++;
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p++;
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}
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return p;
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}
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/*******************************************************************
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Check if a file exists - call vfs_file_exist for samba files.
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********************************************************************/
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BOOL file_exist(const char *fname,SMB_STRUCT_STAT *sbuf)
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{
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SMB_STRUCT_STAT st;
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if (!sbuf)
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sbuf = &st;
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if (sys_stat(fname,sbuf) != 0)
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return(False);
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return((S_ISREG(sbuf->st_mode)) || (S_ISFIFO(sbuf->st_mode)));
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}
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/*******************************************************************
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Check a files mod time.
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********************************************************************/
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time_t file_modtime(const char *fname)
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{
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SMB_STRUCT_STAT st;
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if (sys_stat(fname,&st) != 0)
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return(0);
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return(st.st_mtime);
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}
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/*******************************************************************
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Check if a directory exists.
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********************************************************************/
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BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
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{
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SMB_STRUCT_STAT st2;
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BOOL ret;
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if (!st)
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st = &st2;
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if (sys_stat(dname,st) != 0)
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return(False);
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ret = S_ISDIR(st->st_mode);
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if(!ret)
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errno = ENOTDIR;
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return ret;
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}
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/*******************************************************************
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Returns the size in bytes of the named file.
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********************************************************************/
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SMB_OFF_T get_file_size(char *file_name)
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{
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SMB_STRUCT_STAT buf;
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buf.st_size = 0;
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if(sys_stat(file_name,&buf) != 0)
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return (SMB_OFF_T)-1;
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return(buf.st_size);
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}
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/*******************************************************************
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Return a string representing an attribute for a file.
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********************************************************************/
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char *attrib_string(uint16 mode)
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{
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static fstring attrstr;
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attrstr[0] = 0;
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if (mode & aVOLID) fstrcat(attrstr,"V");
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if (mode & aDIR) fstrcat(attrstr,"D");
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if (mode & aARCH) fstrcat(attrstr,"A");
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if (mode & aHIDDEN) fstrcat(attrstr,"H");
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if (mode & aSYSTEM) fstrcat(attrstr,"S");
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if (mode & aRONLY) fstrcat(attrstr,"R");
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return(attrstr);
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}
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/*******************************************************************
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Show a smb message structure.
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********************************************************************/
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void show_msg(char *buf)
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{
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int i;
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int bcc=0;
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if (!DEBUGLVL(5))
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return;
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DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
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smb_len(buf),
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(int)CVAL(buf,smb_com),
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(int)CVAL(buf,smb_rcls),
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(int)CVAL(buf,smb_reh),
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(int)SVAL(buf,smb_err),
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(int)CVAL(buf,smb_flg),
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(int)SVAL(buf,smb_flg2)));
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DEBUGADD(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\n",
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(int)SVAL(buf,smb_tid),
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(int)SVAL(buf,smb_pid),
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(int)SVAL(buf,smb_uid),
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(int)SVAL(buf,smb_mid)));
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DEBUGADD(5,("smt_wct=%d\n",(int)CVAL(buf,smb_wct)));
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for (i=0;i<(int)CVAL(buf,smb_wct);i++)
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DEBUGADD(5,("smb_vwv[%2d]=%5d (0x%X)\n",i,
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SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
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bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
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DEBUGADD(5,("smb_bcc=%d\n",bcc));
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if (DEBUGLEVEL < 10)
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return;
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if (DEBUGLEVEL < 50)
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bcc = MIN(bcc, 512);
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dump_data(10, smb_buf(buf), bcc);
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}
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/*******************************************************************
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Set the length and marker of an smb packet.
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********************************************************************/
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void smb_setlen(char *buf,int len)
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{
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_smb_setlen(buf,len);
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SCVAL(buf,4,0xFF);
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SCVAL(buf,5,'S');
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SCVAL(buf,6,'M');
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SCVAL(buf,7,'B');
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}
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/*******************************************************************
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Setup the word count and byte count for a smb message.
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********************************************************************/
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int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
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{
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if (zero && (num_words || num_bytes)) {
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memset(buf + smb_size,'\0',num_words*2 + num_bytes);
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}
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SCVAL(buf,smb_wct,num_words);
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SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
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smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
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return (smb_size + num_words*2 + num_bytes);
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}
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/*******************************************************************
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Setup only the byte count for a smb message.
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********************************************************************/
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int set_message_bcc(char *buf,int num_bytes)
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{
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|
int num_words = CVAL(buf,smb_wct);
|
|
SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
|
|
smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
|
|
return (smb_size + num_words*2 + num_bytes);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Setup only the byte count for a smb message, using the end of the
|
|
message as a marker.
|
|
********************************************************************/
|
|
|
|
int set_message_end(void *outbuf,void *end_ptr)
|
|
{
|
|
return set_message_bcc((char *)outbuf,PTR_DIFF(end_ptr,smb_buf((char *)outbuf)));
|
|
}
|
|
|
|
/*******************************************************************
|
|
Reduce a file name, removing .. elements.
|
|
********************************************************************/
|
|
|
|
void dos_clean_name(char *s)
|
|
{
|
|
char *p=NULL;
|
|
|
|
DEBUG(3,("dos_clean_name [%s]\n",s));
|
|
|
|
/* remove any double slashes */
|
|
all_string_sub(s, "\\\\", "\\", 0);
|
|
|
|
while ((p = strstr_m(s,"\\..\\")) != NULL) {
|
|
pstring s1;
|
|
|
|
*p = 0;
|
|
pstrcpy(s1,p+3);
|
|
|
|
if ((p=strrchr_m(s,'\\')) != NULL)
|
|
*p = 0;
|
|
else
|
|
*s = 0;
|
|
pstrcat(s,s1);
|
|
}
|
|
|
|
trim_string(s,NULL,"\\..");
|
|
|
|
all_string_sub(s, "\\.\\", "\\", 0);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Reduce a file name, removing .. elements.
|
|
********************************************************************/
|
|
|
|
void unix_clean_name(char *s)
|
|
{
|
|
char *p=NULL;
|
|
|
|
DEBUG(3,("unix_clean_name [%s]\n",s));
|
|
|
|
/* remove any double slashes */
|
|
all_string_sub(s, "//","/", 0);
|
|
|
|
/* Remove leading ./ characters */
|
|
if(strncmp(s, "./", 2) == 0) {
|
|
trim_string(s, "./", NULL);
|
|
if(*s == 0)
|
|
pstrcpy(s,"./");
|
|
}
|
|
|
|
while ((p = strstr_m(s,"/../")) != NULL) {
|
|
pstring s1;
|
|
|
|
*p = 0;
|
|
pstrcpy(s1,p+3);
|
|
|
|
if ((p=strrchr_m(s,'/')) != NULL)
|
|
*p = 0;
|
|
else
|
|
*s = 0;
|
|
pstrcat(s,s1);
|
|
}
|
|
|
|
trim_string(s,NULL,"/..");
|
|
}
|
|
|
|
/*******************************************************************
|
|
Close the low 3 fd's and open dev/null in their place.
|
|
********************************************************************/
|
|
|
|
void close_low_fds(BOOL stderr_too)
|
|
{
|
|
#ifndef VALGRIND
|
|
int fd;
|
|
int i;
|
|
|
|
close(0);
|
|
close(1);
|
|
|
|
if (stderr_too)
|
|
close(2);
|
|
|
|
/* try and use up these file descriptors, so silly
|
|
library routines writing to stdout etc won't cause havoc */
|
|
for (i=0;i<3;i++) {
|
|
if (i == 2 && !stderr_too)
|
|
continue;
|
|
|
|
fd = sys_open("/dev/null",O_RDWR,0);
|
|
if (fd < 0)
|
|
fd = sys_open("/dev/null",O_WRONLY,0);
|
|
if (fd < 0) {
|
|
DEBUG(0,("Can't open /dev/null\n"));
|
|
return;
|
|
}
|
|
if (fd != i) {
|
|
DEBUG(0,("Didn't get file descriptor %d\n",i));
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*******************************************************************
|
|
Write data into an fd at a given offset. Ignore seek errors.
|
|
********************************************************************/
|
|
|
|
ssize_t write_data_at_offset(int fd, const char *buffer, size_t N, SMB_OFF_T pos)
|
|
{
|
|
size_t total=0;
|
|
ssize_t ret;
|
|
|
|
if (pos == (SMB_OFF_T)-1) {
|
|
return write_data(fd, buffer, N);
|
|
}
|
|
#if defined(HAVE_PWRITE) || defined(HAVE_PRWITE64)
|
|
while (total < N) {
|
|
ret = sys_pwrite(fd,buffer + total,N - total, pos);
|
|
if (ret == -1 && errno == ESPIPE) {
|
|
return write_data(fd, buffer + total,N - total);
|
|
}
|
|
if (ret == -1) {
|
|
DEBUG(0,("write_data_at_offset: write failure. Error = %s\n", strerror(errno) ));
|
|
return -1;
|
|
}
|
|
if (ret == 0) {
|
|
return total;
|
|
}
|
|
total += ret;
|
|
pos += ret;
|
|
}
|
|
return (ssize_t)total;
|
|
#else
|
|
/* Use lseek and write_data. */
|
|
if (sys_lseek(fd, pos, SEEK_SET) == -1) {
|
|
if (errno != ESPIPE) {
|
|
return -1;
|
|
}
|
|
}
|
|
return write_data(fd, buffer, N);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
|
|
else
|
|
if SYSV use O_NDELAY
|
|
if BSD use FNDELAY
|
|
****************************************************************************/
|
|
|
|
int set_blocking(int fd, BOOL set)
|
|
{
|
|
int val;
|
|
#ifdef O_NONBLOCK
|
|
#define FLAG_TO_SET O_NONBLOCK
|
|
#else
|
|
#ifdef SYSV
|
|
#define FLAG_TO_SET O_NDELAY
|
|
#else /* BSD */
|
|
#define FLAG_TO_SET FNDELAY
|
|
#endif
|
|
#endif
|
|
|
|
if((val = sys_fcntl_long(fd, F_GETFL, 0)) == -1)
|
|
return -1;
|
|
if(set) /* Turn blocking on - ie. clear nonblock flag */
|
|
val &= ~FLAG_TO_SET;
|
|
else
|
|
val |= FLAG_TO_SET;
|
|
return sys_fcntl_long( fd, F_SETFL, val);
|
|
#undef FLAG_TO_SET
|
|
}
|
|
|
|
/****************************************************************************
|
|
Transfer some data between two fd's.
|
|
****************************************************************************/
|
|
|
|
#ifndef TRANSFER_BUF_SIZE
|
|
#define TRANSFER_BUF_SIZE 65536
|
|
#endif
|
|
|
|
ssize_t transfer_file_internal(int infd, int outfd, size_t n, ssize_t (*read_fn)(int, void *, size_t),
|
|
ssize_t (*write_fn)(int, const void *, size_t))
|
|
{
|
|
char *buf;
|
|
size_t total = 0;
|
|
ssize_t read_ret;
|
|
ssize_t write_ret;
|
|
size_t num_to_read_thistime;
|
|
size_t num_written = 0;
|
|
|
|
if ((buf = SMB_MALLOC(TRANSFER_BUF_SIZE)) == NULL)
|
|
return -1;
|
|
|
|
while (total < n) {
|
|
num_to_read_thistime = MIN((n - total), TRANSFER_BUF_SIZE);
|
|
|
|
read_ret = (*read_fn)(infd, buf, num_to_read_thistime);
|
|
if (read_ret == -1) {
|
|
DEBUG(0,("transfer_file_internal: read failure. Error = %s\n", strerror(errno) ));
|
|
SAFE_FREE(buf);
|
|
return -1;
|
|
}
|
|
if (read_ret == 0)
|
|
break;
|
|
|
|
num_written = 0;
|
|
|
|
while (num_written < read_ret) {
|
|
write_ret = (*write_fn)(outfd,buf + num_written, read_ret - num_written);
|
|
|
|
if (write_ret == -1) {
|
|
DEBUG(0,("transfer_file_internal: write failure. Error = %s\n", strerror(errno) ));
|
|
SAFE_FREE(buf);
|
|
return -1;
|
|
}
|
|
if (write_ret == 0)
|
|
return (ssize_t)total;
|
|
|
|
num_written += (size_t)write_ret;
|
|
}
|
|
|
|
total += (size_t)read_ret;
|
|
}
|
|
|
|
SAFE_FREE(buf);
|
|
return (ssize_t)total;
|
|
}
|
|
|
|
SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n)
|
|
{
|
|
return (SMB_OFF_T)transfer_file_internal(infd, outfd, (size_t)n, sys_read, sys_write);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Sleep for a specified number of milliseconds.
|
|
********************************************************************/
|
|
|
|
void smb_msleep(unsigned int t)
|
|
{
|
|
#if defined(HAVE_NANOSLEEP)
|
|
struct timespec tval;
|
|
int ret;
|
|
|
|
tval.tv_sec = t/1000;
|
|
tval.tv_nsec = 1000000*(t%1000);
|
|
|
|
do {
|
|
errno = 0;
|
|
ret = nanosleep(&tval, &tval);
|
|
} while (ret < 0 && errno == EINTR && (tval.tv_sec > 0 || tval.tv_nsec > 0));
|
|
#else
|
|
unsigned int tdiff=0;
|
|
struct timeval tval,t1,t2;
|
|
fd_set fds;
|
|
|
|
GetTimeOfDay(&t1);
|
|
t2 = t1;
|
|
|
|
while (tdiff < t) {
|
|
tval.tv_sec = (t-tdiff)/1000;
|
|
tval.tv_usec = 1000*((t-tdiff)%1000);
|
|
|
|
/* Never wait for more than 1 sec. */
|
|
if (tval.tv_sec > 1) {
|
|
tval.tv_sec = 1;
|
|
tval.tv_usec = 0;
|
|
}
|
|
|
|
FD_ZERO(&fds);
|
|
errno = 0;
|
|
sys_select_intr(0,&fds,NULL,NULL,&tval);
|
|
|
|
GetTimeOfDay(&t2);
|
|
if (t2.tv_sec < t1.tv_sec) {
|
|
/* Someone adjusted time... */
|
|
t1 = t2;
|
|
}
|
|
|
|
tdiff = TvalDiff(&t1,&t2);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
Become a daemon, discarding the controlling terminal.
|
|
****************************************************************************/
|
|
|
|
void become_daemon(BOOL Fork, BOOL no_process_group)
|
|
{
|
|
if (Fork) {
|
|
if (sys_fork()) {
|
|
_exit(0);
|
|
}
|
|
}
|
|
|
|
/* detach from the terminal */
|
|
#ifdef HAVE_SETSID
|
|
if (!no_process_group) setsid();
|
|
#elif defined(TIOCNOTTY)
|
|
if (!no_process_group) {
|
|
int i = sys_open("/dev/tty", O_RDWR, 0);
|
|
if (i != -1) {
|
|
ioctl(i, (int) TIOCNOTTY, (char *)0);
|
|
close(i);
|
|
}
|
|
}
|
|
#endif /* HAVE_SETSID */
|
|
|
|
/* Close fd's 0,1,2. Needed if started by rsh */
|
|
close_low_fds(False); /* Don't close stderr, let the debug system
|
|
attach it to the logfile */
|
|
}
|
|
|
|
/****************************************************************************
|
|
Put up a yes/no prompt.
|
|
****************************************************************************/
|
|
|
|
BOOL yesno(char *p)
|
|
{
|
|
pstring ans;
|
|
printf("%s",p);
|
|
|
|
if (!fgets(ans,sizeof(ans)-1,stdin))
|
|
return(False);
|
|
|
|
if (*ans == 'y' || *ans == 'Y')
|
|
return(True);
|
|
|
|
return(False);
|
|
}
|
|
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
|
|
/****************************************************************************
|
|
Internal malloc wrapper. Externally visible.
|
|
****************************************************************************/
|
|
|
|
void *malloc_(size_t size)
|
|
{
|
|
#undef malloc
|
|
return malloc(size);
|
|
#define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
|
|
}
|
|
|
|
/****************************************************************************
|
|
Internal calloc wrapper. Not externally visible.
|
|
****************************************************************************/
|
|
|
|
static void *calloc_(size_t count, size_t size)
|
|
{
|
|
#undef calloc
|
|
return calloc(count, size);
|
|
#define calloc(n,s) __ERROR_DONT_USE_CALLOC_DIRECTLY
|
|
}
|
|
|
|
/****************************************************************************
|
|
Internal realloc wrapper. Not externally visible.
|
|
****************************************************************************/
|
|
|
|
static void *realloc_(void *ptr, size_t size)
|
|
{
|
|
#undef realloc
|
|
return realloc(ptr, size);
|
|
#define realloc(p,s) __ERROR_DONT_USE_RELLOC_DIRECTLY
|
|
}
|
|
|
|
#endif /* PARANOID_MALLOC_CHECKER */
|
|
|
|
/****************************************************************************
|
|
Type-safe malloc.
|
|
****************************************************************************/
|
|
|
|
void *malloc_array(size_t el_size, unsigned int count)
|
|
{
|
|
if (count >= MAX_ALLOC_SIZE/el_size) {
|
|
return NULL;
|
|
}
|
|
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
return malloc_(el_size*count);
|
|
#else
|
|
return malloc(el_size*count);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
Type-safe calloc.
|
|
****************************************************************************/
|
|
|
|
void *calloc_array(size_t size, size_t nmemb)
|
|
{
|
|
if (nmemb >= MAX_ALLOC_SIZE/size) {
|
|
return NULL;
|
|
}
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
return calloc_(nmemb, size);
|
|
#else
|
|
return calloc(nmemb, size);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
Expand a pointer to be a particular size.
|
|
Note that this version of Realloc has an extra parameter that decides
|
|
whether to free the passed in storage on allocation failure or if the
|
|
new size is zero.
|
|
|
|
This is designed for use in the typical idiom of :
|
|
|
|
p = SMB_REALLOC(p, size)
|
|
if (!p) {
|
|
return error;
|
|
}
|
|
|
|
and not to have to keep track of the old 'p' contents to free later, nor
|
|
to worry if the size parameter was zero. In the case where NULL is returned
|
|
we guarentee that p has been freed.
|
|
|
|
If free later semantics are desired, then pass 'free_old_on_error' as False which
|
|
guarentees that the old contents are not freed on error, even if size == 0. To use
|
|
this idiom use :
|
|
|
|
tmp = SMB_REALLOC_KEEP_OLD_ON_ERROR(p, size);
|
|
if (!tmp) {
|
|
SAFE_FREE(p);
|
|
return error;
|
|
} else {
|
|
p = tmp;
|
|
}
|
|
|
|
Changes were instigated by Coverity error checking. JRA.
|
|
****************************************************************************/
|
|
|
|
void *Realloc(void *p, size_t size, BOOL free_old_on_error)
|
|
{
|
|
void *ret=NULL;
|
|
|
|
if (size == 0) {
|
|
if (free_old_on_error) {
|
|
SAFE_FREE(p);
|
|
}
|
|
DEBUG(2,("Realloc asked for 0 bytes\n"));
|
|
return NULL;
|
|
}
|
|
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
if (!p) {
|
|
ret = (void *)malloc_(size);
|
|
} else {
|
|
ret = (void *)realloc_(p,size);
|
|
}
|
|
#else
|
|
if (!p) {
|
|
ret = (void *)malloc(size);
|
|
} else {
|
|
ret = (void *)realloc(p,size);
|
|
}
|
|
#endif
|
|
|
|
if (!ret) {
|
|
if (free_old_on_error && p) {
|
|
SAFE_FREE(p);
|
|
}
|
|
DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
|
|
}
|
|
|
|
return(ret);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Type-safe realloc.
|
|
****************************************************************************/
|
|
|
|
void *realloc_array(void *p, size_t el_size, unsigned int count, BOOL free_old_on_error)
|
|
{
|
|
if (count >= MAX_ALLOC_SIZE/el_size) {
|
|
if (free_old_on_error) {
|
|
SAFE_FREE(p);
|
|
}
|
|
return NULL;
|
|
}
|
|
return Realloc(p, el_size*count, free_old_on_error);
|
|
}
|
|
|
|
/****************************************************************************
|
|
(Hopefully) efficient array append.
|
|
****************************************************************************/
|
|
|
|
void add_to_large_array(TALLOC_CTX *mem_ctx, size_t element_size,
|
|
void *element, void **array, uint32 *num_elements,
|
|
ssize_t *array_size)
|
|
{
|
|
if (*array_size < 0) {
|
|
return;
|
|
}
|
|
|
|
if (*array == NULL) {
|
|
if (*array_size == 0) {
|
|
*array_size = 128;
|
|
}
|
|
|
|
if (*array_size >= MAX_ALLOC_SIZE/element_size) {
|
|
goto error;
|
|
}
|
|
|
|
if (mem_ctx != NULL) {
|
|
*array = TALLOC(mem_ctx, element_size * (*array_size));
|
|
} else {
|
|
*array = SMB_MALLOC(element_size * (*array_size));
|
|
}
|
|
|
|
if (*array == NULL) {
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (*num_elements == *array_size) {
|
|
*array_size *= 2;
|
|
|
|
if (*array_size >= MAX_ALLOC_SIZE/element_size) {
|
|
goto error;
|
|
}
|
|
|
|
if (mem_ctx != NULL) {
|
|
*array = TALLOC_REALLOC(mem_ctx, *array,
|
|
element_size * (*array_size));
|
|
} else {
|
|
*array = SMB_REALLOC(*array,
|
|
element_size * (*array_size));
|
|
}
|
|
|
|
if (*array == NULL) {
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
memcpy((char *)(*array) + element_size*(*num_elements),
|
|
element, element_size);
|
|
*num_elements += 1;
|
|
|
|
return;
|
|
|
|
error:
|
|
*num_elements = 0;
|
|
*array_size = -1;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Free memory, checks for NULL.
|
|
Use directly SAFE_FREE()
|
|
Exists only because we need to pass a function pointer somewhere --SSS
|
|
****************************************************************************/
|
|
|
|
void safe_free(void *p)
|
|
{
|
|
SAFE_FREE(p);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Get my own name and IP.
|
|
****************************************************************************/
|
|
|
|
BOOL get_myname(char *my_name)
|
|
{
|
|
pstring hostname;
|
|
|
|
*hostname = 0;
|
|
|
|
/* get my host name */
|
|
if (gethostname(hostname, sizeof(hostname)) == -1) {
|
|
DEBUG(0,("gethostname failed\n"));
|
|
return False;
|
|
}
|
|
|
|
/* Ensure null termination. */
|
|
hostname[sizeof(hostname)-1] = '\0';
|
|
|
|
if (my_name) {
|
|
/* split off any parts after an initial . */
|
|
char *p = strchr_m(hostname,'.');
|
|
|
|
if (p)
|
|
*p = 0;
|
|
|
|
fstrcpy(my_name,hostname);
|
|
}
|
|
|
|
return(True);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Get my own canonical name, including domain.
|
|
****************************************************************************/
|
|
|
|
BOOL get_mydnsfullname(fstring my_dnsname)
|
|
{
|
|
static fstring dnshostname;
|
|
struct hostent *hp;
|
|
|
|
if (!*dnshostname) {
|
|
/* get my host name */
|
|
if (gethostname(dnshostname, sizeof(dnshostname)) == -1) {
|
|
*dnshostname = '\0';
|
|
DEBUG(0,("gethostname failed\n"));
|
|
return False;
|
|
}
|
|
|
|
/* Ensure null termination. */
|
|
dnshostname[sizeof(dnshostname)-1] = '\0';
|
|
|
|
/* Ensure we get the cannonical name. */
|
|
if (!(hp = sys_gethostbyname(dnshostname))) {
|
|
*dnshostname = '\0';
|
|
return False;
|
|
}
|
|
fstrcpy(dnshostname, hp->h_name);
|
|
}
|
|
fstrcpy(my_dnsname, dnshostname);
|
|
return True;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Get my own domain name.
|
|
****************************************************************************/
|
|
|
|
BOOL get_mydnsdomname(fstring my_domname)
|
|
{
|
|
fstring domname;
|
|
char *p;
|
|
|
|
*my_domname = '\0';
|
|
if (!get_mydnsfullname(domname)) {
|
|
return False;
|
|
}
|
|
p = strchr_m(domname, '.');
|
|
if (p) {
|
|
p++;
|
|
fstrcpy(my_domname, p);
|
|
}
|
|
|
|
return False;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Interpret a protocol description string, with a default.
|
|
****************************************************************************/
|
|
|
|
int interpret_protocol(const char *str,int def)
|
|
{
|
|
if (strequal(str,"NT1"))
|
|
return(PROTOCOL_NT1);
|
|
if (strequal(str,"LANMAN2"))
|
|
return(PROTOCOL_LANMAN2);
|
|
if (strequal(str,"LANMAN1"))
|
|
return(PROTOCOL_LANMAN1);
|
|
if (strequal(str,"CORE"))
|
|
return(PROTOCOL_CORE);
|
|
if (strequal(str,"COREPLUS"))
|
|
return(PROTOCOL_COREPLUS);
|
|
if (strequal(str,"CORE+"))
|
|
return(PROTOCOL_COREPLUS);
|
|
|
|
DEBUG(0,("Unrecognised protocol level %s\n",str));
|
|
|
|
return(def);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Return true if a string could be a pure IP address.
|
|
****************************************************************************/
|
|
|
|
BOOL is_ipaddress(const char *str)
|
|
{
|
|
BOOL pure_address = True;
|
|
int i;
|
|
|
|
for (i=0; pure_address && str[i]; i++)
|
|
if (!(isdigit((int)str[i]) || str[i] == '.'))
|
|
pure_address = False;
|
|
|
|
/* Check that a pure number is not misinterpreted as an IP */
|
|
pure_address = pure_address && (strchr_m(str, '.') != NULL);
|
|
|
|
return pure_address;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Interpret an internet address or name into an IP address in 4 byte form.
|
|
****************************************************************************/
|
|
|
|
uint32 interpret_addr(const char *str)
|
|
{
|
|
struct hostent *hp;
|
|
uint32 res;
|
|
|
|
if (strcmp(str,"0.0.0.0") == 0)
|
|
return(0);
|
|
if (strcmp(str,"255.255.255.255") == 0)
|
|
return(0xFFFFFFFF);
|
|
|
|
/* if it's in the form of an IP address then get the lib to interpret it */
|
|
if (is_ipaddress(str)) {
|
|
res = inet_addr(str);
|
|
} else {
|
|
/* otherwise assume it's a network name of some sort and use
|
|
sys_gethostbyname */
|
|
if ((hp = sys_gethostbyname(str)) == 0) {
|
|
DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
|
|
return 0;
|
|
}
|
|
|
|
if(hp->h_addr == NULL) {
|
|
DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
|
|
return 0;
|
|
}
|
|
putip((char *)&res,(char *)hp->h_addr);
|
|
}
|
|
|
|
if (res == (uint32)-1)
|
|
return(0);
|
|
|
|
return(res);
|
|
}
|
|
|
|
/*******************************************************************
|
|
A convenient addition to interpret_addr().
|
|
******************************************************************/
|
|
|
|
struct in_addr *interpret_addr2(const char *str)
|
|
{
|
|
static struct in_addr ret;
|
|
uint32 a = interpret_addr(str);
|
|
ret.s_addr = a;
|
|
return(&ret);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Check if an IP is the 0.0.0.0.
|
|
******************************************************************/
|
|
|
|
BOOL is_zero_ip(struct in_addr ip)
|
|
{
|
|
uint32 a;
|
|
putip((char *)&a,(char *)&ip);
|
|
return(a == 0);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Set an IP to 0.0.0.0.
|
|
******************************************************************/
|
|
|
|
void zero_ip(struct in_addr *ip)
|
|
{
|
|
static BOOL init;
|
|
static struct in_addr ipzero;
|
|
|
|
if (!init) {
|
|
ipzero = *interpret_addr2("0.0.0.0");
|
|
init = True;
|
|
}
|
|
|
|
*ip = ipzero;
|
|
}
|
|
|
|
#if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
|
|
/******************************************************************
|
|
Remove any mount options such as -rsize=2048,wsize=2048 etc.
|
|
Based on a fix from <Thomas.Hepper@icem.de>.
|
|
*******************************************************************/
|
|
|
|
static void strip_mount_options( pstring *str)
|
|
{
|
|
if (**str == '-') {
|
|
char *p = *str;
|
|
while(*p && !isspace(*p))
|
|
p++;
|
|
while(*p && isspace(*p))
|
|
p++;
|
|
if(*p) {
|
|
pstring tmp_str;
|
|
|
|
pstrcpy(tmp_str, p);
|
|
pstrcpy(*str, tmp_str);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Patch from jkf@soton.ac.uk
|
|
Split Luke's automount_server into YP lookup and string splitter
|
|
so can easily implement automount_path().
|
|
As we may end up doing both, cache the last YP result.
|
|
*******************************************************************/
|
|
|
|
#ifdef WITH_NISPLUS_HOME
|
|
char *automount_lookup(const char *user_name)
|
|
{
|
|
static fstring last_key = "";
|
|
static pstring last_value = "";
|
|
|
|
char *nis_map = (char *)lp_nis_home_map_name();
|
|
|
|
char buffer[NIS_MAXATTRVAL + 1];
|
|
nis_result *result;
|
|
nis_object *object;
|
|
entry_obj *entry;
|
|
|
|
if (strcmp(user_name, last_key)) {
|
|
slprintf(buffer, sizeof(buffer)-1, "[key=%s],%s", user_name, nis_map);
|
|
DEBUG(5, ("NIS+ querystring: %s\n", buffer));
|
|
|
|
if (result = nis_list(buffer, FOLLOW_PATH|EXPAND_NAME|HARD_LOOKUP, NULL, NULL)) {
|
|
if (result->status != NIS_SUCCESS) {
|
|
DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
|
|
fstrcpy(last_key, ""); pstrcpy(last_value, "");
|
|
} else {
|
|
object = result->objects.objects_val;
|
|
if (object->zo_data.zo_type == ENTRY_OBJ) {
|
|
entry = &object->zo_data.objdata_u.en_data;
|
|
DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
|
|
DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
|
|
|
|
pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
|
|
pstring_sub(last_value, "&", user_name);
|
|
fstrcpy(last_key, user_name);
|
|
}
|
|
}
|
|
}
|
|
nis_freeresult(result);
|
|
}
|
|
|
|
strip_mount_options(&last_value);
|
|
|
|
DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
|
|
return last_value;
|
|
}
|
|
#else /* WITH_NISPLUS_HOME */
|
|
|
|
char *automount_lookup(const char *user_name)
|
|
{
|
|
static fstring last_key = "";
|
|
static pstring last_value = "";
|
|
|
|
int nis_error; /* returned by yp all functions */
|
|
char *nis_result; /* yp_match inits this */
|
|
int nis_result_len; /* and set this */
|
|
char *nis_domain; /* yp_get_default_domain inits this */
|
|
char *nis_map = (char *)lp_nis_home_map_name();
|
|
|
|
if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) {
|
|
DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
|
|
return last_value;
|
|
}
|
|
|
|
DEBUG(5, ("NIS Domain: %s\n", nis_domain));
|
|
|
|
if (!strcmp(user_name, last_key)) {
|
|
nis_result = last_value;
|
|
nis_result_len = strlen(last_value);
|
|
nis_error = 0;
|
|
} else {
|
|
if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name),
|
|
&nis_result, &nis_result_len)) == 0) {
|
|
fstrcpy(last_key, user_name);
|
|
pstrcpy(last_value, nis_result);
|
|
strip_mount_options(&last_value);
|
|
|
|
} else if(nis_error == YPERR_KEY) {
|
|
|
|
/* If Key lookup fails user home server is not in nis_map
|
|
use default information for server, and home directory */
|
|
last_value[0] = 0;
|
|
DEBUG(3, ("YP Key not found: while looking up \"%s\" in map \"%s\"\n",
|
|
user_name, nis_map));
|
|
DEBUG(3, ("using defaults for server and home directory\n"));
|
|
} else {
|
|
DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
|
|
yperr_string(nis_error), user_name, nis_map));
|
|
}
|
|
}
|
|
|
|
DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
|
|
return last_value;
|
|
}
|
|
#endif /* WITH_NISPLUS_HOME */
|
|
#endif
|
|
|
|
/*******************************************************************
|
|
Are two IPs on the same subnet?
|
|
********************************************************************/
|
|
|
|
BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
|
|
{
|
|
uint32 net1,net2,nmask;
|
|
|
|
nmask = ntohl(mask.s_addr);
|
|
net1 = ntohl(ip1.s_addr);
|
|
net2 = ntohl(ip2.s_addr);
|
|
|
|
return((net1 & nmask) == (net2 & nmask));
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
Check if a process exists. Does this work on all unixes?
|
|
****************************************************************************/
|
|
|
|
BOOL process_exists(const struct process_id pid)
|
|
{
|
|
if (!procid_is_local(&pid)) {
|
|
/* This *SEVERELY* needs fixing. */
|
|
return True;
|
|
}
|
|
|
|
/* Doing kill with a non-positive pid causes messages to be
|
|
* sent to places we don't want. */
|
|
SMB_ASSERT(pid.pid > 0);
|
|
return(kill(pid.pid,0) == 0 || errno != ESRCH);
|
|
}
|
|
|
|
BOOL process_exists_by_pid(pid_t pid)
|
|
{
|
|
return process_exists(pid_to_procid(pid));
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a uid into a user name.
|
|
********************************************************************/
|
|
|
|
const char *uidtoname(uid_t uid)
|
|
{
|
|
static fstring name;
|
|
struct passwd *pass;
|
|
|
|
pass = getpwuid_alloc(NULL, uid);
|
|
if (pass) {
|
|
fstrcpy(name, pass->pw_name);
|
|
TALLOC_FREE(pass);
|
|
} else {
|
|
slprintf(name, sizeof(name) - 1, "%ld",(long int)uid);
|
|
}
|
|
return name;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
Convert a gid into a group name.
|
|
********************************************************************/
|
|
|
|
char *gidtoname(gid_t gid)
|
|
{
|
|
static fstring name;
|
|
struct group *grp;
|
|
|
|
grp = getgrgid(gid);
|
|
if (grp)
|
|
return(grp->gr_name);
|
|
slprintf(name,sizeof(name) - 1, "%d",(int)gid);
|
|
return(name);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a user name into a uid.
|
|
********************************************************************/
|
|
|
|
uid_t nametouid(const char *name)
|
|
{
|
|
struct passwd *pass;
|
|
char *p;
|
|
uid_t u;
|
|
|
|
pass = getpwnam_alloc(NULL, name);
|
|
if (pass) {
|
|
u = pass->pw_uid;
|
|
TALLOC_FREE(pass);
|
|
return u;
|
|
}
|
|
|
|
u = (uid_t)strtol(name, &p, 0);
|
|
if ((p != name) && (*p == '\0'))
|
|
return u;
|
|
|
|
return (uid_t)-1;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a name to a gid_t if possible. Return -1 if not a group.
|
|
********************************************************************/
|
|
|
|
gid_t nametogid(const char *name)
|
|
{
|
|
struct group *grp;
|
|
char *p;
|
|
gid_t g;
|
|
|
|
g = (gid_t)strtol(name, &p, 0);
|
|
if ((p != name) && (*p == '\0'))
|
|
return g;
|
|
|
|
grp = sys_getgrnam(name);
|
|
if (grp)
|
|
return(grp->gr_gid);
|
|
return (gid_t)-1;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Something really nasty happened - panic !
|
|
********************************************************************/
|
|
|
|
void smb_panic(const char *const why)
|
|
{
|
|
char *cmd;
|
|
int result;
|
|
|
|
#ifdef DEVELOPER
|
|
{
|
|
|
|
if (global_clobber_region_function) {
|
|
DEBUG(0,("smb_panic: clobber_region() last called from [%s(%u)]\n",
|
|
global_clobber_region_function,
|
|
global_clobber_region_line));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
DEBUG(0,("PANIC (pid %llu): %s\n",
|
|
(unsigned long long)sys_getpid(), why));
|
|
log_stack_trace();
|
|
|
|
/* only smbd needs to decrement the smbd counter in connections.tdb */
|
|
decrement_smbd_process_count();
|
|
|
|
cmd = lp_panic_action();
|
|
if (cmd && *cmd) {
|
|
DEBUG(0, ("smb_panic(): calling panic action [%s]\n", cmd));
|
|
result = system(cmd);
|
|
|
|
if (result == -1)
|
|
DEBUG(0, ("smb_panic(): fork failed in panic action: %s\n",
|
|
strerror(errno)));
|
|
else
|
|
DEBUG(0, ("smb_panic(): action returned status %d\n",
|
|
WEXITSTATUS(result)));
|
|
}
|
|
|
|
dump_core();
|
|
}
|
|
|
|
/*******************************************************************
|
|
Print a backtrace of the stack to the debug log. This function
|
|
DELIBERATELY LEAKS MEMORY. The expectation is that you should
|
|
exit shortly after calling it.
|
|
********************************************************************/
|
|
|
|
#ifdef HAVE_LIBUNWIND_H
|
|
#include <libunwind.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_EXECINFO_H
|
|
#include <execinfo.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LIBEXC_H
|
|
#include <libexc.h>
|
|
#endif
|
|
|
|
void log_stack_trace(void)
|
|
{
|
|
#ifdef HAVE_LIBUNWIND
|
|
/* Try to use libunwind before any other technique since on ia64
|
|
* libunwind correctly walks the stack in more circumstances than
|
|
* backtrace.
|
|
*/
|
|
unw_cursor_t cursor;
|
|
unw_context_t uc;
|
|
unsigned i = 0;
|
|
|
|
char procname[256];
|
|
unw_word_t ip, sp, off;
|
|
|
|
procname[sizeof(procname) - 1] = '\0';
|
|
|
|
if (unw_getcontext(&uc) != 0) {
|
|
goto libunwind_failed;
|
|
}
|
|
|
|
if (unw_init_local(&cursor, &uc) != 0) {
|
|
goto libunwind_failed;
|
|
}
|
|
|
|
DEBUG(0, ("BACKTRACE:\n"));
|
|
|
|
do {
|
|
ip = sp = 0;
|
|
unw_get_reg(&cursor, UNW_REG_IP, &ip);
|
|
unw_get_reg(&cursor, UNW_REG_SP, &sp);
|
|
|
|
switch (unw_get_proc_name(&cursor,
|
|
procname, sizeof(procname) - 1, &off) ) {
|
|
case 0:
|
|
/* Name found. */
|
|
case -UNW_ENOMEM:
|
|
/* Name truncated. */
|
|
DEBUGADD(0, (" #%u %s + %#llx [ip=%#llx] [sp=%#llx]\n",
|
|
i, procname, (long long)off,
|
|
(long long)ip, (long long) sp));
|
|
break;
|
|
default:
|
|
/* case -UNW_ENOINFO: */
|
|
/* case -UNW_EUNSPEC: */
|
|
/* No symbol name found. */
|
|
DEBUGADD(0, (" #%u %s [ip=%#llx] [sp=%#llx]\n",
|
|
i, "<unknown symbol>",
|
|
(long long)ip, (long long) sp));
|
|
}
|
|
++i;
|
|
} while (unw_step(&cursor) > 0);
|
|
|
|
return;
|
|
|
|
libunwind_failed:
|
|
DEBUG(0, ("unable to produce a stack trace with libunwind\n"));
|
|
|
|
#elif HAVE_BACKTRACE_SYMBOLS
|
|
void *backtrace_stack[BACKTRACE_STACK_SIZE];
|
|
size_t backtrace_size;
|
|
char **backtrace_strings;
|
|
|
|
/* get the backtrace (stack frames) */
|
|
backtrace_size = backtrace(backtrace_stack,BACKTRACE_STACK_SIZE);
|
|
backtrace_strings = backtrace_symbols(backtrace_stack, backtrace_size);
|
|
|
|
DEBUG(0, ("BACKTRACE: %lu stack frames:\n",
|
|
(unsigned long)backtrace_size));
|
|
|
|
if (backtrace_strings) {
|
|
int i;
|
|
|
|
for (i = 0; i < backtrace_size; i++)
|
|
DEBUGADD(0, (" #%u %s\n", i, backtrace_strings[i]));
|
|
|
|
/* Leak the backtrace_strings, rather than risk what free() might do */
|
|
}
|
|
|
|
#elif HAVE_LIBEXC
|
|
|
|
/* The IRIX libexc library provides an API for unwinding the stack. See
|
|
* libexc(3) for details. Apparantly trace_back_stack leaks memory, but
|
|
* since we are about to abort anyway, it hardly matters.
|
|
*/
|
|
|
|
#define NAMESIZE 32 /* Arbitrary */
|
|
|
|
__uint64_t addrs[BACKTRACE_STACK_SIZE];
|
|
char * names[BACKTRACE_STACK_SIZE];
|
|
char namebuf[BACKTRACE_STACK_SIZE * NAMESIZE];
|
|
|
|
int i;
|
|
int levels;
|
|
|
|
ZERO_ARRAY(addrs);
|
|
ZERO_ARRAY(names);
|
|
ZERO_ARRAY(namebuf);
|
|
|
|
/* We need to be root so we can open our /proc entry to walk
|
|
* our stack. It also helps when we want to dump core.
|
|
*/
|
|
become_root();
|
|
|
|
for (i = 0; i < BACKTRACE_STACK_SIZE; i++) {
|
|
names[i] = namebuf + (i * NAMESIZE);
|
|
}
|
|
|
|
levels = trace_back_stack(0, addrs, names,
|
|
BACKTRACE_STACK_SIZE, NAMESIZE - 1);
|
|
|
|
DEBUG(0, ("BACKTRACE: %d stack frames:\n", levels));
|
|
for (i = 0; i < levels; i++) {
|
|
DEBUGADD(0, (" #%d 0x%llx %s\n", i, addrs[i], names[i]));
|
|
}
|
|
#undef NAMESIZE
|
|
|
|
#else
|
|
DEBUG(0, ("unable to produce a stack trace on this platform\n"));
|
|
#endif
|
|
}
|
|
|
|
/*******************************************************************
|
|
A readdir wrapper which just returns the file name.
|
|
********************************************************************/
|
|
|
|
const char *readdirname(SMB_STRUCT_DIR *p)
|
|
{
|
|
SMB_STRUCT_DIRENT *ptr;
|
|
char *dname;
|
|
|
|
if (!p)
|
|
return(NULL);
|
|
|
|
ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
|
|
if (!ptr)
|
|
return(NULL);
|
|
|
|
dname = ptr->d_name;
|
|
|
|
#ifdef NEXT2
|
|
if (telldir(p) < 0)
|
|
return(NULL);
|
|
#endif
|
|
|
|
#ifdef HAVE_BROKEN_READDIR_NAME
|
|
/* using /usr/ucb/cc is BAD */
|
|
dname = dname - 2;
|
|
#endif
|
|
|
|
{
|
|
static pstring buf;
|
|
int len = NAMLEN(ptr);
|
|
memcpy(buf, dname, len);
|
|
buf[len] = 0;
|
|
dname = buf;
|
|
}
|
|
|
|
return(dname);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function used to decide if the last component
|
|
of a path matches a (possibly wildcarded) entry in a namelist.
|
|
********************************************************************/
|
|
|
|
BOOL is_in_path(const char *name, name_compare_entry *namelist, BOOL case_sensitive)
|
|
{
|
|
pstring last_component;
|
|
char *p;
|
|
|
|
/* if we have no list it's obviously not in the path */
|
|
if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) {
|
|
return False;
|
|
}
|
|
|
|
DEBUG(8, ("is_in_path: %s\n", name));
|
|
|
|
/* Get the last component of the unix name. */
|
|
p = strrchr_m(name, '/');
|
|
pstrcpy(last_component, p ? ++p : name);
|
|
|
|
for(; namelist->name != NULL; namelist++) {
|
|
if(namelist->is_wild) {
|
|
if (mask_match(last_component, namelist->name, case_sensitive)) {
|
|
DEBUG(8,("is_in_path: mask match succeeded\n"));
|
|
return True;
|
|
}
|
|
} else {
|
|
if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
|
|
(!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) {
|
|
DEBUG(8,("is_in_path: match succeeded\n"));
|
|
return True;
|
|
}
|
|
}
|
|
}
|
|
DEBUG(8,("is_in_path: match not found\n"));
|
|
|
|
return False;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Strip a '/' separated list into an array of
|
|
name_compare_enties structures suitable for
|
|
passing to is_in_path(). We do this for
|
|
speed so we can pre-parse all the names in the list
|
|
and don't do it for each call to is_in_path().
|
|
namelist is modified here and is assumed to be
|
|
a copy owned by the caller.
|
|
We also check if the entry contains a wildcard to
|
|
remove a potentially expensive call to mask_match
|
|
if possible.
|
|
********************************************************************/
|
|
|
|
void set_namearray(name_compare_entry **ppname_array, char *namelist)
|
|
{
|
|
char *name_end;
|
|
char *nameptr = namelist;
|
|
int num_entries = 0;
|
|
int i;
|
|
|
|
(*ppname_array) = NULL;
|
|
|
|
if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
|
|
return;
|
|
|
|
/* We need to make two passes over the string. The
|
|
first to count the number of elements, the second
|
|
to split it.
|
|
*/
|
|
|
|
while(*nameptr) {
|
|
if ( *nameptr == '/' ) {
|
|
/* cope with multiple (useless) /s) */
|
|
nameptr++;
|
|
continue;
|
|
}
|
|
/* find the next / */
|
|
name_end = strchr_m(nameptr, '/');
|
|
|
|
/* oops - the last check for a / didn't find one. */
|
|
if (name_end == NULL)
|
|
break;
|
|
|
|
/* next segment please */
|
|
nameptr = name_end + 1;
|
|
num_entries++;
|
|
}
|
|
|
|
if(num_entries == 0)
|
|
return;
|
|
|
|
if(( (*ppname_array) = SMB_MALLOC_ARRAY(name_compare_entry, num_entries + 1)) == NULL) {
|
|
DEBUG(0,("set_namearray: malloc fail\n"));
|
|
return;
|
|
}
|
|
|
|
/* Now copy out the names */
|
|
nameptr = namelist;
|
|
i = 0;
|
|
while(*nameptr) {
|
|
if ( *nameptr == '/' ) {
|
|
/* cope with multiple (useless) /s) */
|
|
nameptr++;
|
|
continue;
|
|
}
|
|
/* find the next / */
|
|
if ((name_end = strchr_m(nameptr, '/')) != NULL)
|
|
*name_end = 0;
|
|
|
|
/* oops - the last check for a / didn't find one. */
|
|
if(name_end == NULL)
|
|
break;
|
|
|
|
(*ppname_array)[i].is_wild = ms_has_wild(nameptr);
|
|
if(((*ppname_array)[i].name = SMB_STRDUP(nameptr)) == NULL) {
|
|
DEBUG(0,("set_namearray: malloc fail (1)\n"));
|
|
return;
|
|
}
|
|
|
|
/* next segment please */
|
|
nameptr = name_end + 1;
|
|
i++;
|
|
}
|
|
|
|
(*ppname_array)[i].name = NULL;
|
|
|
|
return;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Routine to free a namearray.
|
|
****************************************************************************/
|
|
|
|
void free_namearray(name_compare_entry *name_array)
|
|
{
|
|
int i;
|
|
|
|
if(name_array == NULL)
|
|
return;
|
|
|
|
for(i=0; name_array[i].name!=NULL; i++)
|
|
SAFE_FREE(name_array[i].name);
|
|
SAFE_FREE(name_array);
|
|
}
|
|
|
|
#undef DBGC_CLASS
|
|
#define DBGC_CLASS DBGC_LOCKING
|
|
|
|
/****************************************************************************
|
|
Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
|
|
is dealt with in posix.c
|
|
Returns True if the lock was granted, False otherwise.
|
|
****************************************************************************/
|
|
|
|
BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
|
|
{
|
|
SMB_STRUCT_FLOCK lock;
|
|
int ret;
|
|
|
|
DEBUG(8,("fcntl_lock fd=%d op=%d offset=%.0f count=%.0f type=%d\n",
|
|
fd,op,(double)offset,(double)count,type));
|
|
|
|
lock.l_type = type;
|
|
lock.l_whence = SEEK_SET;
|
|
lock.l_start = offset;
|
|
lock.l_len = count;
|
|
lock.l_pid = 0;
|
|
|
|
ret = sys_fcntl_ptr(fd,op,&lock);
|
|
|
|
if (ret == -1) {
|
|
DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
|
|
(double)offset,(double)count,op,type,strerror(errno)));
|
|
return False;
|
|
}
|
|
|
|
/* everything went OK */
|
|
DEBUG(8,("fcntl_lock: Lock call successful\n"));
|
|
|
|
return True;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Simple routine to query existing file locks. Cruft in NFS and 64->32 bit mapping
|
|
is dealt with in posix.c
|
|
Returns True if we have information regarding this lock region (and returns
|
|
F_UNLCK in *ptype if the region is unlocked). False if the call failed.
|
|
****************************************************************************/
|
|
|
|
BOOL fcntl_getlock(int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
|
|
{
|
|
SMB_STRUCT_FLOCK lock;
|
|
int ret;
|
|
|
|
DEBUG(8,("fcntl_getlock fd=%d offset=%.0f count=%.0f type=%d\n",
|
|
fd,(double)*poffset,(double)*pcount,*ptype));
|
|
|
|
lock.l_type = *ptype;
|
|
lock.l_whence = SEEK_SET;
|
|
lock.l_start = *poffset;
|
|
lock.l_len = *pcount;
|
|
lock.l_pid = 0;
|
|
|
|
ret = sys_fcntl_ptr(fd,SMB_F_GETLK,&lock);
|
|
|
|
if (ret == -1) {
|
|
DEBUG(3,("fcntl_getlock: lock request failed at offset %.0f count %.0f type %d (%s)\n",
|
|
(double)*poffset,(double)*pcount,*ptype,strerror(errno)));
|
|
return False;
|
|
}
|
|
|
|
*ptype = lock.l_type;
|
|
*poffset = lock.l_start;
|
|
*pcount = lock.l_len;
|
|
*ppid = lock.l_pid;
|
|
|
|
DEBUG(3,("fcntl_getlock: fd %d is returned info %d pid %u\n",
|
|
fd, (int)lock.l_type, (unsigned int)lock.l_pid));
|
|
return True;
|
|
}
|
|
|
|
#undef DBGC_CLASS
|
|
#define DBGC_CLASS DBGC_ALL
|
|
|
|
/*******************************************************************
|
|
Is the name specified one of my netbios names.
|
|
Returns true if it is equal, false otherwise.
|
|
********************************************************************/
|
|
|
|
BOOL is_myname(const char *s)
|
|
{
|
|
int n;
|
|
BOOL ret = False;
|
|
|
|
for (n=0; my_netbios_names(n); n++) {
|
|
if (strequal(my_netbios_names(n), s)) {
|
|
ret=True;
|
|
break;
|
|
}
|
|
}
|
|
DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
|
|
return(ret);
|
|
}
|
|
|
|
BOOL is_myname_or_ipaddr(const char *s)
|
|
{
|
|
fstring name, dnsname;
|
|
char *servername;
|
|
|
|
if ( !s )
|
|
return False;
|
|
|
|
/* santize the string from '\\name' */
|
|
|
|
fstrcpy( name, s );
|
|
|
|
servername = strrchr_m( name, '\\' );
|
|
if ( !servername )
|
|
servername = name;
|
|
else
|
|
servername++;
|
|
|
|
/* optimize for the common case */
|
|
|
|
if (strequal(servername, global_myname()))
|
|
return True;
|
|
|
|
/* check for an alias */
|
|
|
|
if (is_myname(servername))
|
|
return True;
|
|
|
|
/* check for loopback */
|
|
|
|
if (strequal(servername, "localhost"))
|
|
return True;
|
|
|
|
/* maybe it's my dns name */
|
|
|
|
if ( get_mydnsfullname( dnsname ) )
|
|
if ( strequal( servername, dnsname ) )
|
|
return True;
|
|
|
|
/* handle possible CNAME records */
|
|
|
|
if ( !is_ipaddress( servername ) ) {
|
|
/* use DNS to resolve the name, but only the first address */
|
|
struct hostent *hp;
|
|
|
|
if (((hp = sys_gethostbyname(name)) != NULL) && (hp->h_addr != NULL)) {
|
|
struct in_addr return_ip;
|
|
putip( (char*)&return_ip, (char*)hp->h_addr );
|
|
fstrcpy( name, inet_ntoa( return_ip ) );
|
|
servername = name;
|
|
}
|
|
}
|
|
|
|
/* maybe its an IP address? */
|
|
if (is_ipaddress(servername)) {
|
|
struct iface_struct nics[MAX_INTERFACES];
|
|
int i, n;
|
|
uint32 ip;
|
|
|
|
ip = interpret_addr(servername);
|
|
if ((ip==0) || (ip==0xffffffff))
|
|
return False;
|
|
|
|
n = get_interfaces(nics, MAX_INTERFACES);
|
|
for (i=0; i<n; i++) {
|
|
if (ip == nics[i].ip.s_addr)
|
|
return True;
|
|
}
|
|
}
|
|
|
|
/* no match */
|
|
return False;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Is the name specified our workgroup/domain.
|
|
Returns true if it is equal, false otherwise.
|
|
********************************************************************/
|
|
|
|
BOOL is_myworkgroup(const char *s)
|
|
{
|
|
BOOL ret = False;
|
|
|
|
if (strequal(s, lp_workgroup())) {
|
|
ret=True;
|
|
}
|
|
|
|
DEBUG(8, ("is_myworkgroup(\"%s\") returns %d\n", s, ret));
|
|
return(ret);
|
|
}
|
|
|
|
/*******************************************************************
|
|
we distinguish between 2K and XP by the "Native Lan Manager" string
|
|
WinXP => "Windows 2002 5.1"
|
|
Win2k => "Windows 2000 5.0"
|
|
NT4 => "Windows NT 4.0"
|
|
Win9x => "Windows 4.0"
|
|
Windows 2003 doesn't set the native lan manager string but
|
|
they do set the domain to "Windows 2003 5.2" (probably a bug).
|
|
********************************************************************/
|
|
|
|
void ra_lanman_string( const char *native_lanman )
|
|
{
|
|
if ( strcmp( native_lanman, "Windows 2002 5.1" ) == 0 )
|
|
set_remote_arch( RA_WINXP );
|
|
else if ( strcmp( native_lanman, "Windows Server 2003 5.2" ) == 0 )
|
|
set_remote_arch( RA_WIN2K3 );
|
|
}
|
|
|
|
/*******************************************************************
|
|
Set the horrid remote_arch string based on an enum.
|
|
********************************************************************/
|
|
|
|
void set_remote_arch(enum remote_arch_types type)
|
|
{
|
|
ra_type = type;
|
|
switch( type ) {
|
|
case RA_WFWG:
|
|
fstrcpy(remote_arch, "WfWg");
|
|
break;
|
|
case RA_OS2:
|
|
fstrcpy(remote_arch, "OS2");
|
|
break;
|
|
case RA_WIN95:
|
|
fstrcpy(remote_arch, "Win95");
|
|
break;
|
|
case RA_WINNT:
|
|
fstrcpy(remote_arch, "WinNT");
|
|
break;
|
|
case RA_WIN2K:
|
|
fstrcpy(remote_arch, "Win2K");
|
|
break;
|
|
case RA_WINXP:
|
|
fstrcpy(remote_arch, "WinXP");
|
|
break;
|
|
case RA_WIN2K3:
|
|
fstrcpy(remote_arch, "Win2K3");
|
|
break;
|
|
case RA_SAMBA:
|
|
fstrcpy(remote_arch,"Samba");
|
|
break;
|
|
case RA_CIFSFS:
|
|
fstrcpy(remote_arch,"CIFSFS");
|
|
break;
|
|
default:
|
|
ra_type = RA_UNKNOWN;
|
|
fstrcpy(remote_arch, "UNKNOWN");
|
|
break;
|
|
}
|
|
|
|
DEBUG(10,("set_remote_arch: Client arch is \'%s\'\n", remote_arch));
|
|
}
|
|
|
|
/*******************************************************************
|
|
Get the remote_arch type.
|
|
********************************************************************/
|
|
|
|
enum remote_arch_types get_remote_arch(void)
|
|
{
|
|
return ra_type;
|
|
}
|
|
|
|
void print_asc(int level, const unsigned char *buf,int len)
|
|
{
|
|
int i;
|
|
for (i=0;i<len;i++)
|
|
DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
|
|
}
|
|
|
|
void dump_data(int level, const char *buf1,int len)
|
|
{
|
|
const unsigned char *buf = (const unsigned char *)buf1;
|
|
int i=0;
|
|
if (len<=0) return;
|
|
|
|
if (!DEBUGLVL(level)) return;
|
|
|
|
DEBUGADD(level,("[%03X] ",i));
|
|
for (i=0;i<len;) {
|
|
DEBUGADD(level,("%02X ",(int)buf[i]));
|
|
i++;
|
|
if (i%8 == 0) DEBUGADD(level,(" "));
|
|
if (i%16 == 0) {
|
|
print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
|
|
print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
|
|
if (i<len) DEBUGADD(level,("[%03X] ",i));
|
|
}
|
|
}
|
|
if (i%16) {
|
|
int n;
|
|
n = 16 - (i%16);
|
|
DEBUGADD(level,(" "));
|
|
if (n>8) DEBUGADD(level,(" "));
|
|
while (n--) DEBUGADD(level,(" "));
|
|
n = MIN(8,i%16);
|
|
print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
|
|
n = (i%16) - n;
|
|
if (n>0) print_asc(level,&buf[i-n],n);
|
|
DEBUGADD(level,("\n"));
|
|
}
|
|
}
|
|
|
|
void dump_data_pw(const char *msg, const uchar * data, size_t len)
|
|
{
|
|
#ifdef DEBUG_PASSWORD
|
|
DEBUG(11, ("%s", msg));
|
|
if (data != NULL && len > 0)
|
|
{
|
|
dump_data(11, (const char *)data, len);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
char *tab_depth(int depth)
|
|
{
|
|
static pstring spaces;
|
|
memset(spaces, ' ', depth * 4);
|
|
spaces[depth * 4] = 0;
|
|
return spaces;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
Provide a checksum on a string
|
|
|
|
Input: s - the null-terminated character string for which the checksum
|
|
will be calculated.
|
|
|
|
Output: The checksum value calculated for s.
|
|
*****************************************************************************/
|
|
|
|
int str_checksum(const char *s)
|
|
{
|
|
int res = 0;
|
|
int c;
|
|
int i=0;
|
|
|
|
while(*s) {
|
|
c = *s;
|
|
res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
|
|
s++;
|
|
i++;
|
|
}
|
|
return(res);
|
|
}
|
|
|
|
/*****************************************************************
|
|
Zero a memory area then free it. Used to catch bugs faster.
|
|
*****************************************************************/
|
|
|
|
void zero_free(void *p, size_t size)
|
|
{
|
|
memset(p, 0, size);
|
|
SAFE_FREE(p);
|
|
}
|
|
|
|
/*****************************************************************
|
|
Set our open file limit to a requested max and return the limit.
|
|
*****************************************************************/
|
|
|
|
int set_maxfiles(int requested_max)
|
|
{
|
|
#if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
|
|
struct rlimit rlp;
|
|
int saved_current_limit;
|
|
|
|
if(getrlimit(RLIMIT_NOFILE, &rlp)) {
|
|
DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
|
|
strerror(errno) ));
|
|
/* just guess... */
|
|
return requested_max;
|
|
}
|
|
|
|
/*
|
|
* Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
|
|
* account for the extra fd we need
|
|
* as well as the log files and standard
|
|
* handles etc. Save the limit we want to set in case
|
|
* we are running on an OS that doesn't support this limit (AIX)
|
|
* which always returns RLIM_INFINITY for rlp.rlim_max.
|
|
*/
|
|
|
|
/* Try raising the hard (max) limit to the requested amount. */
|
|
|
|
#if defined(RLIM_INFINITY)
|
|
if (rlp.rlim_max != RLIM_INFINITY) {
|
|
int orig_max = rlp.rlim_max;
|
|
|
|
if ( rlp.rlim_max < requested_max )
|
|
rlp.rlim_max = requested_max;
|
|
|
|
/* This failing is not an error - many systems (Linux) don't
|
|
support our default request of 10,000 open files. JRA. */
|
|
|
|
if(setrlimit(RLIMIT_NOFILE, &rlp)) {
|
|
DEBUG(3,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d max files failed with error %s\n",
|
|
(int)rlp.rlim_max, strerror(errno) ));
|
|
|
|
/* Set failed - restore original value from get. */
|
|
rlp.rlim_max = orig_max;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Now try setting the soft (current) limit. */
|
|
|
|
saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
|
|
|
|
if(setrlimit(RLIMIT_NOFILE, &rlp)) {
|
|
DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
|
|
(int)rlp.rlim_cur, strerror(errno) ));
|
|
/* just guess... */
|
|
return saved_current_limit;
|
|
}
|
|
|
|
if(getrlimit(RLIMIT_NOFILE, &rlp)) {
|
|
DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
|
|
strerror(errno) ));
|
|
/* just guess... */
|
|
return saved_current_limit;
|
|
}
|
|
|
|
#if defined(RLIM_INFINITY)
|
|
if(rlp.rlim_cur == RLIM_INFINITY)
|
|
return saved_current_limit;
|
|
#endif
|
|
|
|
if((int)rlp.rlim_cur > saved_current_limit)
|
|
return saved_current_limit;
|
|
|
|
return rlp.rlim_cur;
|
|
#else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
|
|
/*
|
|
* No way to know - just guess...
|
|
*/
|
|
return requested_max;
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************
|
|
Possibly replace mkstemp if it is broken.
|
|
*****************************************************************/
|
|
|
|
int smb_mkstemp(char *name_template)
|
|
{
|
|
#if HAVE_SECURE_MKSTEMP
|
|
return mkstemp(name_template);
|
|
#else
|
|
/* have a reasonable go at emulating it. Hope that
|
|
the system mktemp() isn't completly hopeless */
|
|
char *p = mktemp(name_template);
|
|
if (!p)
|
|
return -1;
|
|
return open(p, O_CREAT|O_EXCL|O_RDWR, 0600);
|
|
#endif
|
|
}
|
|
|
|
/*****************************************************************
|
|
malloc that aborts with smb_panic on fail or zero size.
|
|
*****************************************************************/
|
|
|
|
void *smb_xmalloc_array(size_t size, unsigned int count)
|
|
{
|
|
void *p;
|
|
if (size == 0)
|
|
smb_panic("smb_xmalloc_array: called with zero size.\n");
|
|
if (count >= MAX_ALLOC_SIZE/size) {
|
|
smb_panic("smb_xmalloc: alloc size too large.\n");
|
|
}
|
|
if ((p = SMB_MALLOC(size*count)) == NULL) {
|
|
DEBUG(0, ("smb_xmalloc_array failed to allocate %lu * %lu bytes\n",
|
|
(unsigned long)size, (unsigned long)count));
|
|
smb_panic("smb_xmalloc_array: malloc fail.\n");
|
|
}
|
|
return p;
|
|
}
|
|
|
|
/**
|
|
Memdup with smb_panic on fail.
|
|
**/
|
|
|
|
void *smb_xmemdup(const void *p, size_t size)
|
|
{
|
|
void *p2;
|
|
p2 = SMB_XMALLOC_ARRAY(unsigned char,size);
|
|
memcpy(p2, p, size);
|
|
return p2;
|
|
}
|
|
|
|
/**
|
|
strdup that aborts on malloc fail.
|
|
**/
|
|
|
|
char *smb_xstrdup(const char *s)
|
|
{
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
#ifdef strdup
|
|
#undef strdup
|
|
#endif
|
|
#endif
|
|
char *s1 = strdup(s);
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
#define strdup(s) __ERROR_DONT_USE_STRDUP_DIRECTLY
|
|
#endif
|
|
if (!s1)
|
|
smb_panic("smb_xstrdup: malloc fail\n");
|
|
return s1;
|
|
|
|
}
|
|
|
|
/**
|
|
strndup that aborts on malloc fail.
|
|
**/
|
|
|
|
char *smb_xstrndup(const char *s, size_t n)
|
|
{
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
#ifdef strndup
|
|
#undef strndup
|
|
#endif
|
|
#endif
|
|
char *s1 = strndup(s, n);
|
|
#if defined(PARANOID_MALLOC_CHECKER)
|
|
#define strndup(s,n) __ERROR_DONT_USE_STRNDUP_DIRECTLY
|
|
#endif
|
|
if (!s1)
|
|
smb_panic("smb_xstrndup: malloc fail\n");
|
|
return s1;
|
|
}
|
|
|
|
/*
|
|
vasprintf that aborts on malloc fail
|
|
*/
|
|
|
|
int smb_xvasprintf(char **ptr, const char *format, va_list ap)
|
|
{
|
|
int n;
|
|
va_list ap2;
|
|
|
|
VA_COPY(ap2, ap);
|
|
|
|
n = vasprintf(ptr, format, ap2);
|
|
if (n == -1 || ! *ptr)
|
|
smb_panic("smb_xvasprintf: out of memory");
|
|
return n;
|
|
}
|
|
|
|
/*****************************************************************
|
|
Like strdup but for memory.
|
|
*****************************************************************/
|
|
|
|
void *memdup(const void *p, size_t size)
|
|
{
|
|
void *p2;
|
|
if (size == 0)
|
|
return NULL;
|
|
p2 = SMB_MALLOC(size);
|
|
if (!p2)
|
|
return NULL;
|
|
memcpy(p2, p, size);
|
|
return p2;
|
|
}
|
|
|
|
/*****************************************************************
|
|
Get local hostname and cache result.
|
|
*****************************************************************/
|
|
|
|
char *myhostname(void)
|
|
{
|
|
static pstring ret;
|
|
if (ret[0] == 0)
|
|
get_myname(ret);
|
|
return ret;
|
|
}
|
|
|
|
/*****************************************************************
|
|
A useful function for returning a path in the Samba lock directory.
|
|
*****************************************************************/
|
|
|
|
char *lock_path(const char *name)
|
|
{
|
|
static pstring fname;
|
|
|
|
pstrcpy(fname,lp_lockdir());
|
|
trim_char(fname,'\0','/');
|
|
|
|
if (!directory_exist(fname,NULL))
|
|
mkdir(fname,0755);
|
|
|
|
pstrcat(fname,"/");
|
|
pstrcat(fname,name);
|
|
|
|
return fname;
|
|
}
|
|
|
|
/*****************************************************************
|
|
A useful function for returning a path in the Samba pid directory.
|
|
*****************************************************************/
|
|
|
|
char *pid_path(const char *name)
|
|
{
|
|
static pstring fname;
|
|
|
|
pstrcpy(fname,lp_piddir());
|
|
trim_char(fname,'\0','/');
|
|
|
|
if (!directory_exist(fname,NULL))
|
|
mkdir(fname,0755);
|
|
|
|
pstrcat(fname,"/");
|
|
pstrcat(fname,name);
|
|
|
|
return fname;
|
|
}
|
|
|
|
/**
|
|
* @brief Returns an absolute path to a file in the Samba lib directory.
|
|
*
|
|
* @param name File to find, relative to LIBDIR.
|
|
*
|
|
* @retval Pointer to a static #pstring containing the full path.
|
|
**/
|
|
|
|
char *lib_path(const char *name)
|
|
{
|
|
static pstring fname;
|
|
fstr_sprintf(fname, "%s/%s", dyn_LIBDIR, name);
|
|
return fname;
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the platform specific shared library extension.
|
|
*
|
|
* @retval Pointer to a static #fstring containing the extension.
|
|
**/
|
|
|
|
const char *shlib_ext(void)
|
|
{
|
|
return dyn_SHLIBEXT;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Given a filename - get its directory name
|
|
NB: Returned in static storage. Caveats:
|
|
o Not safe in thread environment.
|
|
o Caller must not free.
|
|
o If caller wishes to preserve, they should copy.
|
|
********************************************************************/
|
|
|
|
char *parent_dirname(const char *path)
|
|
{
|
|
static pstring dirpath;
|
|
char *p;
|
|
|
|
if (!path)
|
|
return(NULL);
|
|
|
|
pstrcpy(dirpath, path);
|
|
p = strrchr_m(dirpath, '/'); /* Find final '/', if any */
|
|
if (!p) {
|
|
pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
|
|
} else {
|
|
if (p == dirpath)
|
|
++p; /* For root "/", leave "/" in place */
|
|
*p = '\0';
|
|
}
|
|
return dirpath;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
Determine if a pattern contains any Microsoft wildcard characters.
|
|
*******************************************************************/
|
|
|
|
BOOL ms_has_wild(const char *s)
|
|
{
|
|
char c;
|
|
|
|
if (lp_posix_pathnames()) {
|
|
/* With posix pathnames no characters are wild. */
|
|
return False;
|
|
}
|
|
|
|
while ((c = *s++)) {
|
|
switch (c) {
|
|
case '*':
|
|
case '?':
|
|
case '<':
|
|
case '>':
|
|
case '"':
|
|
return True;
|
|
}
|
|
}
|
|
return False;
|
|
}
|
|
|
|
BOOL ms_has_wild_w(const smb_ucs2_t *s)
|
|
{
|
|
smb_ucs2_t c;
|
|
if (!s) return False;
|
|
while ((c = *s++)) {
|
|
switch (c) {
|
|
case UCS2_CHAR('*'):
|
|
case UCS2_CHAR('?'):
|
|
case UCS2_CHAR('<'):
|
|
case UCS2_CHAR('>'):
|
|
case UCS2_CHAR('"'):
|
|
return True;
|
|
}
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/*******************************************************************
|
|
A wrapper that handles case sensitivity and the special handling
|
|
of the ".." name.
|
|
*******************************************************************/
|
|
|
|
BOOL mask_match(const char *string, char *pattern, BOOL is_case_sensitive)
|
|
{
|
|
if (strcmp(string,"..") == 0)
|
|
string = ".";
|
|
if (strcmp(pattern,".") == 0)
|
|
return False;
|
|
|
|
return ms_fnmatch(pattern, string, Protocol <= PROTOCOL_LANMAN2, is_case_sensitive) == 0;
|
|
}
|
|
|
|
/*******************************************************************
|
|
A wrapper that handles case sensitivity and the special handling
|
|
of the ".." name. Varient that is only called by old search code which requires
|
|
pattern translation.
|
|
*******************************************************************/
|
|
|
|
BOOL mask_match_search(const char *string, char *pattern, BOOL is_case_sensitive)
|
|
{
|
|
if (strcmp(string,"..") == 0)
|
|
string = ".";
|
|
if (strcmp(pattern,".") == 0)
|
|
return False;
|
|
|
|
return ms_fnmatch(pattern, string, True, is_case_sensitive) == 0;
|
|
}
|
|
|
|
/*******************************************************************
|
|
A wrapper that handles a list of patters and calls mask_match()
|
|
on each. Returns True if any of the patterns match.
|
|
*******************************************************************/
|
|
|
|
BOOL mask_match_list(const char *string, char **list, int listLen, BOOL is_case_sensitive)
|
|
{
|
|
while (listLen-- > 0) {
|
|
if (mask_match(string, *list++, is_case_sensitive))
|
|
return True;
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/*********************************************************
|
|
Recursive routine that is called by unix_wild_match.
|
|
*********************************************************/
|
|
|
|
static BOOL unix_do_match(const char *regexp, const char *str)
|
|
{
|
|
const char *p;
|
|
|
|
for( p = regexp; *p && *str; ) {
|
|
|
|
switch(*p) {
|
|
case '?':
|
|
str++;
|
|
p++;
|
|
break;
|
|
|
|
case '*':
|
|
|
|
/*
|
|
* Look for a character matching
|
|
* the one after the '*'.
|
|
*/
|
|
p++;
|
|
if(!*p)
|
|
return True; /* Automatic match */
|
|
while(*str) {
|
|
|
|
while(*str && (*p != *str))
|
|
str++;
|
|
|
|
/*
|
|
* Patch from weidel@multichart.de. In the case of the regexp
|
|
* '*XX*' we want to ensure there are at least 2 'X' characters
|
|
* in the string after the '*' for a match to be made.
|
|
*/
|
|
|
|
{
|
|
int matchcount=0;
|
|
|
|
/*
|
|
* Eat all the characters that match, but count how many there were.
|
|
*/
|
|
|
|
while(*str && (*p == *str)) {
|
|
str++;
|
|
matchcount++;
|
|
}
|
|
|
|
/*
|
|
* Now check that if the regexp had n identical characters that
|
|
* matchcount had at least that many matches.
|
|
*/
|
|
|
|
while ( *(p+1) && (*(p+1) == *p)) {
|
|
p++;
|
|
matchcount--;
|
|
}
|
|
|
|
if ( matchcount <= 0 )
|
|
return False;
|
|
}
|
|
|
|
str--; /* We've eaten the match char after the '*' */
|
|
|
|
if(unix_do_match(p, str))
|
|
return True;
|
|
|
|
if(!*str)
|
|
return False;
|
|
else
|
|
str++;
|
|
}
|
|
return False;
|
|
|
|
default:
|
|
if(*str != *p)
|
|
return False;
|
|
str++;
|
|
p++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!*p && !*str)
|
|
return True;
|
|
|
|
if (!*p && str[0] == '.' && str[1] == 0)
|
|
return(True);
|
|
|
|
if (!*str && *p == '?') {
|
|
while (*p == '?')
|
|
p++;
|
|
return(!*p);
|
|
}
|
|
|
|
if(!*str && (*p == '*' && p[1] == '\0'))
|
|
return True;
|
|
|
|
return False;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Simple case insensitive interface to a UNIX wildcard matcher.
|
|
Returns True if match, False if not.
|
|
*******************************************************************/
|
|
|
|
BOOL unix_wild_match(const char *pattern, const char *string)
|
|
{
|
|
pstring p2, s2;
|
|
char *p;
|
|
|
|
pstrcpy(p2, pattern);
|
|
pstrcpy(s2, string);
|
|
strlower_m(p2);
|
|
strlower_m(s2);
|
|
|
|
/* Remove any *? and ** from the pattern as they are meaningless */
|
|
for(p = p2; *p; p++)
|
|
while( *p == '*' && (p[1] == '?' ||p[1] == '*'))
|
|
pstrcpy( &p[1], &p[2]);
|
|
|
|
if (strequal(p2,"*"))
|
|
return True;
|
|
|
|
return unix_do_match(p2, s2);
|
|
}
|
|
|
|
/**********************************************************************
|
|
Converts a name to a fully qalified domain name.
|
|
***********************************************************************/
|
|
|
|
void name_to_fqdn(fstring fqdn, const char *name)
|
|
{
|
|
struct hostent *hp = sys_gethostbyname(name);
|
|
if ( hp && hp->h_name && *hp->h_name ) {
|
|
DEBUG(10,("name_to_fqdn: lookup for %s -> %s.\n", name, hp->h_name));
|
|
fstrcpy(fqdn,hp->h_name);
|
|
} else {
|
|
DEBUG(10,("name_to_fqdn: lookup for %s failed.\n", name));
|
|
fstrcpy(fqdn, name);
|
|
}
|
|
}
|
|
|
|
/**********************************************************************
|
|
Extension to talloc_get_type: Abort on type mismatch
|
|
***********************************************************************/
|
|
|
|
void *talloc_check_name_abort(const void *ptr, const char *name)
|
|
{
|
|
void *result;
|
|
|
|
if (ptr == NULL)
|
|
return NULL;
|
|
|
|
result = talloc_check_name(ptr, name);
|
|
if (result != NULL)
|
|
return result;
|
|
|
|
DEBUG(0, ("Talloc type mismatch, expected %s, got %s\n",
|
|
name, talloc_get_name(ptr)));
|
|
smb_panic("aborting");
|
|
/* Keep the compiler happy */
|
|
return NULL;
|
|
}
|
|
|
|
|
|
#ifdef __INSURE__
|
|
|
|
/*******************************************************************
|
|
This routine is a trick to immediately catch errors when debugging
|
|
with insure. A xterm with a gdb is popped up when insure catches
|
|
a error. It is Linux specific.
|
|
********************************************************************/
|
|
|
|
int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
|
|
{
|
|
static int (*fn)();
|
|
int ret;
|
|
char pidstr[10];
|
|
/* you can get /usr/bin/backtrace from
|
|
http://samba.org/ftp/unpacked/junkcode/backtrace */
|
|
pstring cmd = "/usr/bin/backtrace %d";
|
|
|
|
slprintf(pidstr, sizeof(pidstr)-1, "%d", sys_getpid());
|
|
pstring_sub(cmd, "%d", pidstr);
|
|
|
|
if (!fn) {
|
|
static void *h;
|
|
h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
|
|
fn = dlsym(h, "_Insure_trap_error");
|
|
|
|
if (!h || h == _Insure_trap_error) {
|
|
h = dlopen("/usr/local/parasoft/lib.linux2/libinsure.so", RTLD_LAZY);
|
|
fn = dlsym(h, "_Insure_trap_error");
|
|
}
|
|
}
|
|
|
|
ret = fn(a1, a2, a3, a4, a5, a6);
|
|
|
|
system(cmd);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
uint32 map_share_mode_to_deny_mode(uint32 share_access, uint32 private_options)
|
|
{
|
|
switch (share_access & ~FILE_SHARE_DELETE) {
|
|
case FILE_SHARE_NONE:
|
|
return DENY_ALL;
|
|
case FILE_SHARE_READ:
|
|
return DENY_WRITE;
|
|
case FILE_SHARE_WRITE:
|
|
return DENY_READ;
|
|
case FILE_SHARE_READ|FILE_SHARE_WRITE:
|
|
return DENY_NONE;
|
|
}
|
|
if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {
|
|
return DENY_DOS;
|
|
} else if (private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_FCB) {
|
|
return DENY_FCB;
|
|
}
|
|
|
|
return (uint32)-1;
|
|
}
|
|
|
|
pid_t procid_to_pid(const struct process_id *proc)
|
|
{
|
|
return proc->pid;
|
|
}
|
|
|
|
struct process_id pid_to_procid(pid_t pid)
|
|
{
|
|
struct process_id result;
|
|
result.pid = pid;
|
|
return result;
|
|
}
|
|
|
|
struct process_id procid_self(void)
|
|
{
|
|
return pid_to_procid(sys_getpid());
|
|
}
|
|
|
|
BOOL procid_equal(const struct process_id *p1, const struct process_id *p2)
|
|
{
|
|
return (p1->pid == p2->pid);
|
|
}
|
|
|
|
BOOL procid_is_me(const struct process_id *pid)
|
|
{
|
|
return (pid->pid == sys_getpid());
|
|
}
|
|
|
|
struct process_id interpret_pid(const char *pid_string)
|
|
{
|
|
return pid_to_procid(atoi(pid_string));
|
|
}
|
|
|
|
char *procid_str_static(const struct process_id *pid)
|
|
{
|
|
static fstring str;
|
|
fstr_sprintf(str, "%d", pid->pid);
|
|
return str;
|
|
}
|
|
|
|
char *procid_str(TALLOC_CTX *mem_ctx, const struct process_id *pid)
|
|
{
|
|
return talloc_strdup(mem_ctx, procid_str_static(pid));
|
|
}
|
|
|
|
BOOL procid_valid(const struct process_id *pid)
|
|
{
|
|
return (pid->pid != -1);
|
|
}
|
|
|
|
BOOL procid_is_local(const struct process_id *pid)
|
|
{
|
|
return True;
|
|
}
|
|
|
|
int this_is_smp(void)
|
|
{
|
|
#if defined(HAVE_SYSCONF)
|
|
|
|
#if defined(SYSCONF_SC_NPROC_ONLN)
|
|
return (sysconf(_SC_NPROC_ONLN) > 1) ? 1 : 0;
|
|
#elif defined(SYSCONF_SC_NPROCESSORS_ONLN)
|
|
return (sysconf(_SC_NPROCESSORS_ONLN) > 1) ? 1 : 0;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|