/* 
   Unix SMB/CIFS implementation.
   SAMR Pipe utility functions.
   
   Copyright (C) Luke Kenneth Casson Leighton 	1996-1998
   Copyright (C) Gerald (Jerry) Carter		2000-2001
   Copyright (C) Andrew Bartlett		2001-2002
   Copyright (C) Stefan (metze) Metzmacher	2002
      
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"

#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV

#define STRING_CHANGED (old_string && !new_string) ||\
		    (!old_string && new_string) ||\
		(old_string && new_string && (strcmp(old_string, new_string) != 0))

#define STRING_CHANGED_NC(s1,s2) ((s1) && !(s2)) ||\
		    (!(s1) && (s2)) ||\
		((s1) && (s2) && (strcmp((s1), (s2)) != 0))

/*************************************************************
 Copies a SAM_USER_INFO_20 to a struct samu
**************************************************************/

void copy_id20_to_sam_passwd(struct samu *to, SAM_USER_INFO_20 *from)
{
	const char *old_string;
	char *new_string;
	DATA_BLOB mung;

	if (from == NULL || to == NULL) 
		return;
	
	if (from->hdr_munged_dial.buffer) {
		old_string = pdb_get_munged_dial(to);
		mung.length = from->hdr_munged_dial.uni_str_len;
		mung.data = (uint8 *) from->uni_munged_dial.buffer;
		mung.free = NULL;
		new_string = (mung.length == 0) ?
			NULL : base64_encode_data_blob(mung);
		DEBUG(10,("INFO_20 UNI_MUNGED_DIAL: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED_NC(old_string,new_string))
			pdb_set_munged_dial(to   , new_string, PDB_CHANGED);

		TALLOC_FREE(new_string);
	}
}

/*************************************************************
 Copies a SAM_USER_INFO_21 to a struct samu
**************************************************************/

void copy_id21_to_sam_passwd(struct samu *to, SAM_USER_INFO_21 *from)
{
	time_t unix_time, stored_time;
	const char *old_string, *new_string;
	DATA_BLOB mung;

	if (from == NULL || to == NULL) 
		return;

	if (from->fields_present & ACCT_LAST_LOGON) {
		unix_time=nt_time_to_unix(from->logon_time);
		stored_time = pdb_get_logon_time(to);
		DEBUG(10,("INFO_21 LOGON_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_logon_time(to, unix_time, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_LAST_LOGOFF) {
		unix_time=nt_time_to_unix(from->logoff_time);
		stored_time = pdb_get_logoff_time(to);
		DEBUG(10,("INFO_21 LOGOFF_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_logoff_time(to, unix_time, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_EXPIRY) {
		unix_time=nt_time_to_unix(from->kickoff_time);
		stored_time = pdb_get_kickoff_time(to);
		DEBUG(10,("INFO_21 KICKOFF_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_kickoff_time(to, unix_time , PDB_CHANGED);
	}	

	if (from->fields_present & ACCT_LAST_PWD_CHANGE) {
		unix_time=nt_time_to_unix(from->pass_last_set_time);
		stored_time = pdb_get_pass_last_set_time(to);
		DEBUG(10,("INFO_21 PASS_LAST_SET: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_pass_last_set_time(to, unix_time, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_USERNAME) &&
	    (from->hdr_user_name.buffer)) {
		old_string = pdb_get_username(to);
		new_string = unistr2_static(&from->uni_user_name);
		DEBUG(10,("INFO_21 UNI_USER_NAME: %s -> %s\n", old_string, new_string));
		if (STRING_CHANGED)
		    pdb_set_username(to      , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_FULL_NAME) &&
	    (from->hdr_full_name.buffer)) {
		old_string = pdb_get_fullname(to);
		new_string = unistr2_static(&from->uni_full_name);
		DEBUG(10,("INFO_21 UNI_FULL_NAME: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_fullname(to      , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_HOME_DIR) &&
	    (from->hdr_home_dir.buffer)) {
		old_string = pdb_get_homedir(to);
		new_string = unistr2_static(&from->uni_home_dir);
		DEBUG(10,("INFO_21 UNI_HOME_DIR: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_homedir(to       , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_HOME_DRIVE) &&
	    (from->hdr_dir_drive.buffer)) {
		old_string = pdb_get_dir_drive(to);
		new_string = unistr2_static(&from->uni_dir_drive);
		DEBUG(10,("INFO_21 UNI_DIR_DRIVE: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_dir_drive(to     , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_LOGON_SCRIPT) &&
	    (from->hdr_logon_script.buffer)) {
		old_string = pdb_get_logon_script(to);
		new_string = unistr2_static(&from->uni_logon_script);
		DEBUG(10,("INFO_21 UNI_LOGON_SCRIPT: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_logon_script(to  , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_PROFILE) &&
	    (from->hdr_profile_path.buffer)) {
		old_string = pdb_get_profile_path(to);
		new_string = unistr2_static(&from->uni_profile_path);
		DEBUG(10,("INFO_21 UNI_PROFILE_PATH: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_profile_path(to  , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_DESCRIPTION) &&
	    (from->hdr_acct_desc.buffer)) {
		old_string = pdb_get_acct_desc(to);
		new_string = unistr2_static(&from->uni_acct_desc);
		DEBUG(10,("INFO_21 UNI_ACCT_DESC: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_acct_desc(to     , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_WORKSTATIONS) &&
	    (from->hdr_workstations.buffer)) {
		old_string = pdb_get_workstations(to);
		new_string = unistr2_static(&from->uni_workstations);
		DEBUG(10,("INFO_21 UNI_WORKSTATIONS: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_workstations(to  , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_COMMENT) &&
	    (from->hdr_comment.buffer)) {
		old_string = pdb_get_comment(to);
		new_string = unistr2_static(&from->uni_comment);
		DEBUG(10,("INFO_21 UNI_COMMENT: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_comment(to, new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_CALLBACK) &&
	    (from->hdr_munged_dial.buffer)) {
		char *newstr;
		old_string = pdb_get_munged_dial(to);
		mung.length = from->hdr_munged_dial.uni_str_len;
		mung.data = (uint8 *) from->uni_munged_dial.buffer;
		mung.free = NULL;
		newstr = (mung.length == 0) ?
			NULL : base64_encode_data_blob(mung);
		DEBUG(10,("INFO_21 UNI_MUNGED_DIAL: %s -> %s\n",old_string, newstr));
		if (STRING_CHANGED_NC(old_string,newstr))
			pdb_set_munged_dial(to   , newstr, PDB_CHANGED);

		TALLOC_FREE(newstr);
	}
	
	if (from->fields_present & ACCT_RID) {
		if (from->user_rid == 0) {
			DEBUG(10, ("INFO_21: Asked to set User RID to 0 !? Skipping change!\n"));
		} else if (from->user_rid != pdb_get_user_rid(to)) {
			DEBUG(10,("INFO_21 USER_RID: %u -> %u NOT UPDATED!\n",pdb_get_user_rid(to),from->user_rid));
		}
	}
	
	if (from->fields_present & ACCT_PRIMARY_GID) {
		if (from->group_rid == 0) {
			DEBUG(10, ("INFO_21: Asked to set Group RID to 0 !? Skipping change!\n"));
		} else if (from->group_rid != pdb_get_group_rid(to)) {
			DEBUG(10,("INFO_21 GROUP_RID: %u -> %u\n",pdb_get_group_rid(to),from->group_rid));
			pdb_set_group_sid_from_rid(to, from->group_rid, PDB_CHANGED);
		}
	}
	
	if (from->fields_present & ACCT_FLAGS) {
		DEBUG(10,("INFO_21 ACCT_CTRL: %08X -> %08X\n",pdb_get_acct_ctrl(to),from->acb_info));
		if (from->acb_info != pdb_get_acct_ctrl(to)) {
			if (!(from->acb_info & ACB_AUTOLOCK) && (pdb_get_acct_ctrl(to) & ACB_AUTOLOCK)) {
				/* We're unlocking a previously locked user. Reset bad password counts.
				   Patch from Jianliang Lu. <Jianliang.Lu@getronics.com> */
				pdb_set_bad_password_count(to, 0, PDB_CHANGED);
				pdb_set_bad_password_time(to, 0, PDB_CHANGED);
			}
			pdb_set_acct_ctrl(to, from->acb_info, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_LOGON_HOURS) {
		pstring oldstr, newstr;
		DEBUG(15,("INFO_21 LOGON_DIVS: %08X -> %08X\n",pdb_get_logon_divs(to),from->logon_divs));
		if (from->logon_divs != pdb_get_logon_divs(to)) {
			pdb_set_logon_divs(to, from->logon_divs, PDB_CHANGED);
		}

		DEBUG(15,("INFO_21 LOGON_HRS.LEN: %08X -> %08X\n",pdb_get_hours_len(to),from->logon_hrs.len));
		if (from->logon_hrs.len != pdb_get_hours_len(to)) {
			pdb_set_hours_len(to, from->logon_hrs.len, PDB_CHANGED);
		}

		DEBUG(15,("INFO_21 LOGON_HRS.HOURS: %s -> %s\n",pdb_get_hours(to),from->logon_hrs.hours));
		pdb_sethexhours(oldstr, pdb_get_hours(to));
		pdb_sethexhours(newstr, from->logon_hrs.hours);
		if (!strequal(oldstr, newstr)) {
			pdb_set_hours(to, from->logon_hrs.hours, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_BAD_PWD_COUNT) {
		DEBUG(10,("INFO_21 BAD_PASSWORD_COUNT: %08X -> %08X\n",pdb_get_bad_password_count(to),from->bad_password_count));
		if (from->bad_password_count != pdb_get_bad_password_count(to)) {
			pdb_set_bad_password_count(to, from->bad_password_count, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_NUM_LOGONS) {
		DEBUG(10,("INFO_21 LOGON_COUNT: %08X -> %08X\n",pdb_get_logon_count(to),from->logon_count));
		if (from->logon_count != pdb_get_logon_count(to)) {
			pdb_set_logon_count(to, from->logon_count, PDB_CHANGED);
		}
	}

	/* If the must change flag is set, the last set time goes to zero.
	   the must change and can change fields also do, but they are 
	   calculated from policy, not set from the wire */

	if (from->fields_present & ACCT_EXPIRED_FLAG) {
		DEBUG(10,("INFO_21 PASS_MUST_CHANGE_AT_NEXT_LOGON: %02X\n",from->passmustchange));
		if (from->passmustchange == PASS_MUST_CHANGE_AT_NEXT_LOGON) {
			pdb_set_pass_last_set_time(to, 0, PDB_CHANGED);		
		} else {
			pdb_set_pass_last_set_time(to, time(NULL),PDB_CHANGED);
		}
	}

	DEBUG(10,("INFO_21 PADDING_2: %02X\n",from->padding2));
}


/*************************************************************
 Copies a SAM_USER_INFO_23 to a struct samu
**************************************************************/

void copy_id23_to_sam_passwd(struct samu *to, SAM_USER_INFO_23 *from)
{
	time_t unix_time, stored_time;
	const char *old_string, *new_string;
	DATA_BLOB mung;

	if (from == NULL || to == NULL) 
		return;

	if (from->fields_present & ACCT_LAST_LOGON) {
		unix_time=nt_time_to_unix(from->logon_time);
		stored_time = pdb_get_logon_time(to);
		DEBUG(10,("INFO_23 LOGON_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_logon_time(to, unix_time, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_LAST_LOGOFF) {
		unix_time=nt_time_to_unix(from->logoff_time);
		stored_time = pdb_get_logoff_time(to);
		DEBUG(10,("INFO_23 LOGOFF_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_logoff_time(to, unix_time, PDB_CHANGED);
	}
	
	if (from->fields_present & ACCT_EXPIRY) {
		unix_time=nt_time_to_unix(from->kickoff_time);
		stored_time = pdb_get_kickoff_time(to);
		DEBUG(10,("INFO_23 KICKOFF_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_kickoff_time(to, unix_time , PDB_CHANGED);
	}	

	if (from->fields_present & ACCT_LAST_PWD_CHANGE) {
		unix_time=nt_time_to_unix(from->pass_last_set_time);
		stored_time = pdb_get_pass_last_set_time(to);
		DEBUG(10,("INFO_23 PASS_LAST_SET: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_pass_last_set_time(to, unix_time, PDB_CHANGED);
	}

	/* Backend should check this for sanity */
	if ((from->fields_present & ACCT_USERNAME) &&
	    (from->hdr_user_name.buffer)) {
		old_string = pdb_get_username(to);
		new_string = unistr2_static(&from->uni_user_name);
		DEBUG(10,("INFO_23 UNI_USER_NAME: %s -> %s\n", old_string, new_string));
		if (STRING_CHANGED)
		    pdb_set_username(to      , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_FULL_NAME) &&
	    (from->hdr_full_name.buffer)) {
		old_string = pdb_get_fullname(to);
		new_string = unistr2_static(&from->uni_full_name);
		DEBUG(10,("INFO_23 UNI_FULL_NAME: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_fullname(to      , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_HOME_DIR) &&
	    (from->hdr_home_dir.buffer)) {
		old_string = pdb_get_homedir(to);
		new_string = unistr2_static(&from->uni_home_dir);
		DEBUG(10,("INFO_23 UNI_HOME_DIR: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_homedir(to       , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_HOME_DRIVE) &&
	    (from->hdr_dir_drive.buffer)) {
		old_string = pdb_get_dir_drive(to);
		new_string = unistr2_static(&from->uni_dir_drive);
		DEBUG(10,("INFO_23 UNI_DIR_DRIVE: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_dir_drive(to     , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_LOGON_SCRIPT) &&
	    (from->hdr_logon_script.buffer)) {
		old_string = pdb_get_logon_script(to);
		new_string = unistr2_static(&from->uni_logon_script);
		DEBUG(10,("INFO_23 UNI_LOGON_SCRIPT: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_logon_script(to  , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_PROFILE) &&
	    (from->hdr_profile_path.buffer)) {
		old_string = pdb_get_profile_path(to);
		new_string = unistr2_static(&from->uni_profile_path);
		DEBUG(10,("INFO_23 UNI_PROFILE_PATH: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_profile_path(to  , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_DESCRIPTION) &&
	    (from->hdr_acct_desc.buffer)) {
		old_string = pdb_get_acct_desc(to);
		new_string = unistr2_static(&from->uni_acct_desc);
		DEBUG(10,("INFO_23 UNI_ACCT_DESC: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_acct_desc(to     , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_WORKSTATIONS) &&
	    (from->hdr_workstations.buffer)) {
		old_string = pdb_get_workstations(to);
		new_string = unistr2_static(&from->uni_workstations);
		DEBUG(10,("INFO_23 UNI_WORKSTATIONS: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_workstations(to  , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_COMMENT) &&
	    (from->hdr_comment.buffer)) {
		old_string = pdb_get_comment(to);
		new_string = unistr2_static(&from->uni_comment);
		DEBUG(10,("INFO_23 UNI_UNKNOWN_STR: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_comment(to   , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_CALLBACK) &&
	    (from->hdr_munged_dial.buffer)) {
		char *newstr;
		old_string = pdb_get_munged_dial(to);
		mung.length = from->hdr_munged_dial.uni_str_len;
		mung.data = (uint8 *) from->uni_munged_dial.buffer;
		mung.free = NULL;
		newstr = (mung.length == 0) ?
			NULL : base64_encode_data_blob(mung);
		DEBUG(10,("INFO_23 UNI_MUNGED_DIAL: %s -> %s\n",old_string, newstr));
		if (STRING_CHANGED_NC(old_string, newstr))
			pdb_set_munged_dial(to   , newstr, PDB_CHANGED);

		TALLOC_FREE(newstr);
	}
	
	if (from->fields_present & ACCT_RID) {
		if (from->user_rid == 0) {
			DEBUG(10, ("INFO_23: Asked to set User RID to 0 !? Skipping change!\n"));
		} else if (from->user_rid != pdb_get_user_rid(to)) {
			DEBUG(10,("INFO_23 USER_RID: %u -> %u NOT UPDATED!\n",pdb_get_user_rid(to),from->user_rid));
		}
	}

	if (from->fields_present & ACCT_PRIMARY_GID) {
		if  (from->group_rid == 0) {
			DEBUG(10, ("INFO_23: Asked to set Group RID to 0 !? Skipping change!\n"));
		} else if (from->group_rid != pdb_get_group_rid(to)) {
			DEBUG(10,("INFO_23 GROUP_RID: %u -> %u\n",pdb_get_group_rid(to),from->group_rid));
			pdb_set_group_sid_from_rid(to, from->group_rid, PDB_CHANGED);
		}
	}
	
	if (from->fields_present & ACCT_FLAGS) {
		DEBUG(10,("INFO_23 ACCT_CTRL: %08X -> %08X\n",pdb_get_acct_ctrl(to),from->acb_info));
		if (from->acb_info != pdb_get_acct_ctrl(to)) {
			pdb_set_acct_ctrl(to, from->acb_info, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_LOGON_HOURS) {
		DEBUG(15,("INFO_23 LOGON_DIVS: %08X -> %08X\n",pdb_get_logon_divs(to),from->logon_divs));
		if (from->logon_divs != pdb_get_logon_divs(to)) {
			pdb_set_logon_divs(to, from->logon_divs, PDB_CHANGED);
		}

		DEBUG(15,("INFO_23 LOGON_HRS.LEN: %08X -> %08X\n",pdb_get_hours_len(to),from->logon_hrs.len));
		if (from->logon_hrs.len != pdb_get_hours_len(to)) {
			pdb_set_hours_len(to, from->logon_hrs.len, PDB_CHANGED);
		}

		DEBUG(15,("INFO_23 LOGON_HRS.HOURS: %s -> %s\n",pdb_get_hours(to),from->logon_hrs.hours));
		/* Fix me: only update if it changes --metze */
		pdb_set_hours(to, from->logon_hrs.hours, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_BAD_PWD_COUNT) {
		DEBUG(10,("INFO_23 BAD_PASSWORD_COUNT: %08X -> %08X\n",pdb_get_bad_password_count(to),from->bad_password_count));
		if (from->bad_password_count != pdb_get_bad_password_count(to)) {
			pdb_set_bad_password_count(to, from->bad_password_count, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_NUM_LOGONS) {
		DEBUG(10,("INFO_23 LOGON_COUNT: %08X -> %08X\n",pdb_get_logon_count(to),from->logon_count));
		if (from->logon_count != pdb_get_logon_count(to)) {
			pdb_set_logon_count(to, from->logon_count, PDB_CHANGED);
		}
	}

	/* If the must change flag is set, the last set time goes to zero.
	   the must change and can change fields also do, but they are 
	   calculated from policy, not set from the wire */

	if (from->fields_present & ACCT_EXPIRED_FLAG) {
		DEBUG(10,("INFO_23 PASS_MUST_CHANGE_AT_NEXT_LOGON: %02X\n",from->passmustchange));
		if (from->passmustchange == PASS_MUST_CHANGE_AT_NEXT_LOGON) {
			pdb_set_pass_last_set_time(to, 0, PDB_CHANGED);		
		} else {
			pdb_set_pass_last_set_time(to, time(NULL),PDB_CHANGED);
		}
	}

	DEBUG(10,("INFO_23 PADDING_2: %02X\n",from->padding2));
}

/*************************************************************
 Copies a SAM_USER_INFO_25 to a struct samu
**************************************************************/

void copy_id25_to_sam_passwd(struct samu *to, SAM_USER_INFO_25 *from)
{
	time_t unix_time, stored_time;
	const char *old_string, *new_string;
	DATA_BLOB mung;

	if (from == NULL || to == NULL) 
		return;

	if (from->fields_present & ACCT_LAST_LOGON) {
		unix_time=nt_time_to_unix(from->logon_time);
		stored_time = pdb_get_logon_time(to);
		DEBUG(10,("INFO_25 LOGON_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_logon_time(to, unix_time, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_LAST_LOGOFF) {
		unix_time=nt_time_to_unix(from->logoff_time);
		stored_time = pdb_get_logoff_time(to);
		DEBUG(10,("INFO_25 LOGOFF_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_logoff_time(to, unix_time, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_EXPIRY) {
		unix_time=nt_time_to_unix(from->kickoff_time);
		stored_time = pdb_get_kickoff_time(to);
		DEBUG(10,("INFO_25 KICKOFF_TIME: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_kickoff_time(to, unix_time , PDB_CHANGED);
	}	

	if (from->fields_present & ACCT_LAST_PWD_CHANGE) {
		unix_time=nt_time_to_unix(from->pass_last_set_time);
		stored_time = pdb_get_pass_last_set_time(to);
		DEBUG(10,("INFO_25 PASS_LAST_SET: %lu -> %lu\n",(long unsigned int)stored_time, (long unsigned int)unix_time));
		if (stored_time != unix_time) 
			pdb_set_pass_last_set_time(to, unix_time, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_USERNAME) &&
	    (from->hdr_user_name.buffer)) {
		old_string = pdb_get_username(to);
		new_string = unistr2_static(&from->uni_user_name);
		DEBUG(10,("INFO_25 UNI_USER_NAME: %s -> %s\n", old_string, new_string));
		if (STRING_CHANGED)
		    pdb_set_username(to      , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_FULL_NAME) &&
	    (from->hdr_full_name.buffer)) {
		old_string = pdb_get_fullname(to);
		new_string = unistr2_static(&from->uni_full_name);
		DEBUG(10,("INFO_25 UNI_FULL_NAME: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_fullname(to      , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_HOME_DIR) &&
	    (from->hdr_home_dir.buffer)) {
		old_string = pdb_get_homedir(to);
		new_string = unistr2_static(&from->uni_home_dir);
		DEBUG(10,("INFO_25 UNI_HOME_DIR: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_homedir(to       , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_HOME_DRIVE) &&
	    (from->hdr_dir_drive.buffer)) {
		old_string = pdb_get_dir_drive(to);
		new_string = unistr2_static(&from->uni_dir_drive);
		DEBUG(10,("INFO_25 UNI_DIR_DRIVE: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_dir_drive(to     , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_LOGON_SCRIPT) &&
	    (from->hdr_logon_script.buffer)) {
		old_string = pdb_get_logon_script(to);
		new_string = unistr2_static(&from->uni_logon_script);
		DEBUG(10,("INFO_25 UNI_LOGON_SCRIPT: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_logon_script(to  , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_PROFILE) &&
	    (from->hdr_profile_path.buffer)) {
		old_string = pdb_get_profile_path(to);
		new_string = unistr2_static(&from->uni_profile_path);
		DEBUG(10,("INFO_25 UNI_PROFILE_PATH: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_profile_path(to  , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_DESCRIPTION) &&
	    (from->hdr_acct_desc.buffer)) {
		old_string = pdb_get_acct_desc(to);
		new_string = unistr2_static(&from->uni_acct_desc);
		DEBUG(10,("INFO_25 UNI_ACCT_DESC: %s -> %s\n",old_string,new_string));
		if (STRING_CHANGED)
			pdb_set_acct_desc(to     , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_WORKSTATIONS) &&
	    (from->hdr_workstations.buffer)) {
		old_string = pdb_get_workstations(to);
		new_string = unistr2_static(&from->uni_workstations);
		DEBUG(10,("INFO_25 UNI_WORKSTATIONS: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_workstations(to  , new_string, PDB_CHANGED);
	}

	if ((from->fields_present & ACCT_COMMENT) &&
	    (from->hdr_comment.buffer)) {
		old_string = pdb_get_comment(to);
		new_string = unistr2_static(&from->uni_comment);
		DEBUG(10,("INFO_25 UNI_UNKNOWN_STR: %s -> %s\n",old_string, new_string));
		if (STRING_CHANGED)
			pdb_set_comment(to   , new_string, PDB_CHANGED);
	}
	
	if ((from->fields_present & ACCT_CALLBACK) &&
	    (from->hdr_munged_dial.buffer)) {
		char *newstr;
		old_string = pdb_get_munged_dial(to);
		mung.length = from->hdr_munged_dial.uni_str_len;
		mung.data = (uint8 *) from->uni_munged_dial.buffer;
		mung.free = NULL;
		newstr = (mung.length == 0) ?
			NULL : base64_encode_data_blob(mung);
		DEBUG(10,("INFO_25 UNI_MUNGED_DIAL: %s -> %s\n",old_string, newstr));
		if (STRING_CHANGED_NC(old_string,newstr))
			pdb_set_munged_dial(to   , newstr, PDB_CHANGED);

		TALLOC_FREE(newstr);
	}
	
	if (from->fields_present & ACCT_RID) {
		if (from->user_rid == 0) {
			DEBUG(10, ("INFO_25: Asked to set User RID to 0 !? Skipping change!\n"));
		} else if (from->user_rid != pdb_get_user_rid(to)) {
			DEBUG(10,("INFO_25 USER_RID: %u -> %u NOT UPDATED!\n",pdb_get_user_rid(to),from->user_rid));
		}
	}
	
	if (from->fields_present & ACCT_PRIMARY_GID) {
		if (from->group_rid == 0) {
			DEBUG(10, ("INFO_25: Asked to set Group RID to 0 !? Skipping change!\n"));
		} else if (from->group_rid != pdb_get_group_rid(to)) {
			DEBUG(10,("INFO_25 GROUP_RID: %u -> %u\n",pdb_get_group_rid(to),from->group_rid));
			pdb_set_group_sid_from_rid(to, from->group_rid, PDB_CHANGED);
		}
	}
	
	if (from->fields_present & ACCT_FLAGS) {
		DEBUG(10,("INFO_25 ACCT_CTRL: %08X -> %08X\n",pdb_get_acct_ctrl(to),from->acb_info));
		if (from->acb_info != pdb_get_acct_ctrl(to)) {
			if (!(from->acb_info & ACB_AUTOLOCK) && (pdb_get_acct_ctrl(to) & ACB_AUTOLOCK)) {
				/* We're unlocking a previously locked user. Reset bad password counts.
				   Patch from Jianliang Lu. <Jianliang.Lu@getronics.com> */
				pdb_set_bad_password_count(to, 0, PDB_CHANGED);
				pdb_set_bad_password_time(to, 0, PDB_CHANGED);
			}
			pdb_set_acct_ctrl(to, from->acb_info, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_LOGON_HOURS) {
		DEBUG(15,("INFO_25 LOGON_DIVS: %08X -> %08X\n",pdb_get_logon_divs(to),from->logon_divs));
		if (from->logon_divs != pdb_get_logon_divs(to)) {
			pdb_set_logon_divs(to, from->logon_divs, PDB_CHANGED);
		}

		DEBUG(15,("INFO_25 LOGON_HRS.LEN: %08X -> %08X\n",pdb_get_hours_len(to),from->logon_hrs.len));
		if (from->logon_hrs.len != pdb_get_hours_len(to)) {
			pdb_set_hours_len(to, from->logon_hrs.len, PDB_CHANGED);
		}

		DEBUG(15,("INFO_25 LOGON_HRS.HOURS: %s -> %s\n",pdb_get_hours(to),from->logon_hrs.hours));
		/* Fix me: only update if it changes --metze */
		pdb_set_hours(to, from->logon_hrs.hours, PDB_CHANGED);
	}

	if (from->fields_present & ACCT_BAD_PWD_COUNT) {
		DEBUG(10,("INFO_25 BAD_PASSWORD_COUNT: %08X -> %08X\n",pdb_get_bad_password_count(to),from->bad_password_count));
		if (from->bad_password_count != pdb_get_bad_password_count(to)) {
			pdb_set_bad_password_count(to, from->bad_password_count, PDB_CHANGED);
		}
	}

	if (from->fields_present & ACCT_NUM_LOGONS) {
		DEBUG(10,("INFO_25 LOGON_COUNT: %08X -> %08X\n",pdb_get_logon_count(to),from->logon_count));
		if (from->logon_count != pdb_get_logon_count(to)) {
			pdb_set_logon_count(to, from->logon_count, PDB_CHANGED);
		}
	}

	/* If the must change flag is set, the last set time goes to zero.
	   the must change and can change fields also do, but they are 
	   calculated from policy, not set from the wire */

	if (from->fields_present & ACCT_EXPIRED_FLAG) {
		DEBUG(10,("INFO_25 PASS_MUST_CHANGE_AT_NEXT_LOGON: %02X\n",from->passmustchange));
		if (from->passmustchange == PASS_MUST_CHANGE_AT_NEXT_LOGON) {
			pdb_set_pass_last_set_time(to, 0, PDB_CHANGED);		
		} else {
			pdb_set_pass_last_set_time(to, time(NULL),PDB_CHANGED);
		}
	}
}