Use {u,}int64_t instead of SMB_BIG_{U,}INT.
[samba.git] / source3 / printing / printing.c
index d9bc13d03a274e3281a29b3bf6b00fc9b5c5e6cc..3c8c60f0e07204bc29b26ec7fcc53365b2fbaacb 100644 (file)
@@ -7,7 +7,7 @@
    
    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 2 of the License, or
+   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,
@@ -16,8 +16,7 @@
    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, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "includes.h"
 
 extern SIG_ATOMIC_T got_sig_term;
 extern SIG_ATOMIC_T reload_after_sighup;
+extern struct current_user current_user;
+extern userdom_struct current_user_info;
 
 /* Current printer interface */
-static BOOL remove_from_jobs_changed(int snum, uint32 jobid);
+static bool remove_from_jobs_changed(const char* sharename, uint32 jobid);
 
 /* 
    the printing backend revolves around a tdb database that stores the
@@ -43,19 +44,24 @@ static BOOL remove_from_jobs_changed(int snum, uint32 jobid);
    jobids are assigned when a job starts spooling. 
 */
 
+static TDB_CONTEXT *rap_tdb;
+static uint16 next_rap_jobid;
+struct rap_jobid_key {
+       fstring sharename;
+       uint32  jobid;
+};
+
 /***************************************************************************
  Nightmare. LANMAN jobid's are 16 bit numbers..... We must map them to 32
  bit RPC jobids.... JRA.
 ***************************************************************************/
 
-static TDB_CONTEXT *rap_tdb;
-static uint16 next_rap_jobid;
-
-uint16 pjobid_to_rap(int snum, uint32 jobid)
+uint16 pjobid_to_rap(const char* sharename, uint32 jobid)
 {
        uint16 rap_jobid;
        TDB_DATA data, key;
-       char jinfo[8];
+       struct rap_jobid_key jinfo;
+       uint8 buf[2];
 
        DEBUG(10,("pjobid_to_rap: called.\n"));
 
@@ -66,18 +72,18 @@ uint16 pjobid_to_rap(int snum, uint32 jobid)
                        return 0;
        }
 
-       SIVAL(&jinfo,0,(int32)snum);
-       SIVAL(&jinfo,4,jobid);
-
-       key.dptr = (char *)&jinfo;
+       ZERO_STRUCT( jinfo );
+       fstrcpy( jinfo.sharename, sharename );
+       jinfo.jobid = jobid;
+       key.dptr = (uint8 *)&jinfo;
        key.dsize = sizeof(jinfo);
+
        data = tdb_fetch(rap_tdb, key);
        if (data.dptr && data.dsize == sizeof(uint16)) {
                rap_jobid = SVAL(data.dptr, 0);
                SAFE_FREE(data.dptr);
                DEBUG(10,("pjobid_to_rap: jobid %u maps to RAP jobid %u\n",
-                               (unsigned int)jobid,
-                               (unsigned int)rap_jobid));
+                       (unsigned int)jobid, (unsigned int)rap_jobid));
                return rap_jobid;
        }
        SAFE_FREE(data.dptr);
@@ -85,96 +91,100 @@ uint16 pjobid_to_rap(int snum, uint32 jobid)
        rap_jobid = ++next_rap_jobid;
        if (rap_jobid == 0)
                rap_jobid = ++next_rap_jobid;
-       data.dptr = (char *)&rap_jobid;
+       SSVAL(buf,0,rap_jobid);
+       data.dptr = buf;
        data.dsize = sizeof(rap_jobid);
        tdb_store(rap_tdb, key, data, TDB_REPLACE);
        tdb_store(rap_tdb, data, key, TDB_REPLACE);
 
        DEBUG(10,("pjobid_to_rap: created jobid %u maps to RAP jobid %u\n",
-                               (unsigned int)jobid,
-                               (unsigned int)rap_jobid));
+               (unsigned int)jobid, (unsigned int)rap_jobid));
        return rap_jobid;
 }
 
-BOOL rap_to_pjobid(uint16 rap_jobid, int *psnum, uint32 *pjobid)
+bool rap_to_pjobid(uint16 rap_jobid, fstring sharename, uint32 *pjobid)
 {
        TDB_DATA data, key;
+       uint8 buf[2];
 
        DEBUG(10,("rap_to_pjobid called.\n"));
 
        if (!rap_tdb)
                return False;
 
-       key.dptr = (char *)&rap_jobid;
+       SSVAL(buf,0,rap_jobid);
+       key.dptr = buf;
        key.dsize = sizeof(rap_jobid);
        data = tdb_fetch(rap_tdb, key);
-       if (data.dptr && data.dsize == 8) {
-               *psnum = IVAL(data.dptr,0);
-               *pjobid = IVAL(data.dptr,4);
+       if ( data.dptr && data.dsize == sizeof(struct rap_jobid_key) ) 
+       {
+               struct rap_jobid_key *jinfo = (struct rap_jobid_key*)data.dptr;
+               fstrcpy( sharename, jinfo->sharename );
+               *pjobid = jinfo->jobid;
                DEBUG(10,("rap_to_pjobid: jobid %u maps to RAP jobid %u\n",
-                               (unsigned int)*pjobid,
-                               (unsigned int)rap_jobid));
+                       (unsigned int)*pjobid, (unsigned int)rap_jobid));
                SAFE_FREE(data.dptr);
                return True;
        }
 
        DEBUG(10,("rap_to_pjobid: Failed to lookup RAP jobid %u\n",
-                               (unsigned int)rap_jobid));
+               (unsigned int)rap_jobid));
        SAFE_FREE(data.dptr);
        return False;
 }
 
-static void rap_jobid_delete(int snum, uint32 jobid)
+static void rap_jobid_delete(const char* sharename, uint32 jobid)
 {
        TDB_DATA key, data;
        uint16 rap_jobid;
-       char jinfo[8];
+       struct rap_jobid_key jinfo;
+       uint8 buf[2];
 
        DEBUG(10,("rap_jobid_delete: called.\n"));
 
        if (!rap_tdb)
                return;
 
-       SIVAL(&jinfo,0,(int32)snum);
-       SIVAL(&jinfo,4,jobid);
-
-       key.dptr = (char *)&jinfo;
+       ZERO_STRUCT( jinfo );
+       fstrcpy( jinfo.sharename, sharename );
+       jinfo.jobid = jobid;
+       key.dptr = (uint8 *)&jinfo;
        key.dsize = sizeof(jinfo);
+
        data = tdb_fetch(rap_tdb, key);
        if (!data.dptr || (data.dsize != sizeof(uint16))) {
                DEBUG(10,("rap_jobid_delete: cannot find jobid %u\n",
-                                       (unsigned int)jobid ));
+                       (unsigned int)jobid ));
                SAFE_FREE(data.dptr);
                return;
        }
 
        DEBUG(10,("rap_jobid_delete: deleting jobid %u\n",
-                               (unsigned int)jobid ));
+               (unsigned int)jobid ));
 
        rap_jobid = SVAL(data.dptr, 0);
        SAFE_FREE(data.dptr);
-       data.dptr = (char *)&rap_jobid;
+       SSVAL(buf,0,rap_jobid);
+       data.dptr = buf;
        data.dsize = sizeof(rap_jobid);
        tdb_delete(rap_tdb, key);
        tdb_delete(rap_tdb, data);
 }
 
-static int get_queue_status(int, print_status_struct *);
+static int get_queue_status(const char* sharename, print_status_struct *);
 
 /****************************************************************************
  Initialise the printing backend. Called once at startup before the fork().
 ****************************************************************************/
 
-BOOL print_backend_init(void)
+bool print_backend_init(struct messaging_context *msg_ctx)
 {
        const char *sversion = "INFO/version";
-       pstring printing_path;
        int services = lp_numservices();
        int snum;
 
        unlink(lock_path("printing.tdb"));
-       pstrcpy(printing_path,lock_path("printing"));
-       mkdir(printing_path,0755);
+       mkdir(lock_path("printing"),0755);
 
        /* handle a Samba upgrade */
 
@@ -186,13 +196,13 @@ BOOL print_backend_init(void)
                pdb = get_print_db_byname(lp_const_servicename(snum));
                if (!pdb)
                        continue;
-               if (tdb_lock_bystring(pdb->tdb, sversion, 0) == -1) {
+               if (tdb_lock_bystring(pdb->tdb, sversion) == -1) {
                        DEBUG(0,("print_backend_init: Failed to open printer %s database\n", lp_const_servicename(snum) ));
                        release_print_db(pdb);
                        return False;
                }
                if (tdb_fetch_int32(pdb->tdb, sversion) != PRINT_DATABASE_VERSION) {
-                       tdb_traverse(pdb->tdb, tdb_traverse_delete_fn, NULL);
+                       tdb_wipe_all(pdb->tdb);
                        tdb_store_int32(pdb->tdb, sversion, PRINT_DATABASE_VERSION);
                }
                tdb_unlock_bystring(pdb->tdb, sversion);
@@ -202,7 +212,7 @@ BOOL print_backend_init(void)
        close_all_print_db(); /* Don't leave any open. */
 
        /* do NT print initialization... */
-       return nt_printing_init();
+       return nt_printing_init(msg_ctx);
 }
 
 /****************************************************************************
@@ -223,31 +233,44 @@ void printing_end(void)
  when asked for (and only when supported)
 ****************************************************************************/
 
-static struct printif *get_printer_fns( int snum )
+static struct printif *get_printer_fns_from_type( enum printing_types type )
 {
        struct printif *printer_fns = &generic_printif;
 
 #ifdef HAVE_CUPS
-       if ( lp_printing(snum) == PRINT_CUPS ) {
+       if ( type == PRINT_CUPS ) {
                printer_fns = &cups_printif;
        }
 #endif /* HAVE_CUPS */
+
+#ifdef HAVE_IPRINT
+       if ( type == PRINT_IPRINT ) {
+               printer_fns = &iprint_printif;
+       }
+#endif /* HAVE_IPRINT */
+
+       printer_fns->type = type;
        
        return printer_fns;
 }
 
+static struct printif *get_printer_fns( int snum )
+{
+       return get_printer_fns_from_type( (enum printing_types)lp_printing(snum) );
+}
+
+
 /****************************************************************************
  Useful function to generate a tdb key.
 ****************************************************************************/
 
-static TDB_DATA print_key(uint32 jobid)
+static TDB_DATA print_key(uint32 jobid, uint32 *tmp)
 {
-       static uint32 j;
        TDB_DATA ret;
 
-       SIVAL(&j, 0, jobid);
-       ret.dptr = (void *)&j;
-       ret.dsize = sizeof(j);
+       SIVAL(tmp, 0, jobid);
+       ret.dptr = (uint8 *)tmp;
+       ret.dsize = sizeof(*tmp);
        return ret;
 }
 
@@ -255,7 +278,7 @@ static TDB_DATA print_key(uint32 jobid)
  unpack a pjob from a tdb buffer 
 ***********************************************************************/
  
-int unpack_pjob( char* buf, int buflen, struct printjob *pjob )
+int unpack_pjob( uint8 *buf, int buflen, struct printjob *pjob )
 {
        int     len = 0;
        int     used;
@@ -306,45 +329,61 @@ int unpack_pjob( char* buf, int buflen, struct printjob *pjob )
  Useful function to find a print job in the database.
 ****************************************************************************/
 
-static struct printjob *print_job_find(int snum, uint32 jobid)
+static struct printjob *print_job_find(const char *sharename, uint32 jobid)
 {
        static struct printjob  pjob;
+       uint32_t tmp;
        TDB_DATA                ret;
-       struct tdb_print_db     *pdb = get_print_db_byname(lp_const_servicename(snum));
+       struct tdb_print_db     *pdb = get_print_db_byname(sharename);
        
+       DEBUG(10,("print_job_find: looking up job %u for share %s\n",
+                       (unsigned int)jobid, sharename ));
 
-       if (!pdb)
+       if (!pdb) {
                return NULL;
+       }
 
-       ret = tdb_fetch(pdb->tdb, print_key(jobid));
+       ret = tdb_fetch(pdb->tdb, print_key(jobid, &tmp));
        release_print_db(pdb);
 
-       if (!ret.dptr)
+       if (!ret.dptr) {
+               DEBUG(10,("print_job_find: failed to find jobid %u.\n", (unsigned int)jobid ));
                return NULL;
+       }
        
-       if ( pjob.nt_devmode )
+       if ( pjob.nt_devmode ) {
                free_nt_devicemode( &pjob.nt_devmode );
+       }
                
        ZERO_STRUCT( pjob );
        
        if ( unpack_pjob( ret.dptr, ret.dsize, &pjob ) == -1 ) {
+               DEBUG(10,("print_job_find: failed to unpack jobid %u.\n", (unsigned int)jobid ));
                SAFE_FREE(ret.dptr);
                return NULL;
        }
        
-       SAFE_FREE(ret.dptr);    
+       SAFE_FREE(ret.dptr);
+
+       DEBUG(10,("print_job_find: returning system job %d for jobid %u.\n",
+                       (int)pjob.sysjob, (unsigned int)jobid ));
+
        return &pjob;
 }
 
 /* Convert a unix jobid to a smb jobid */
 
-static uint32 sysjob_to_jobid_value;
+struct unixjob_traverse_state {
+       int sysjob;
+       uint32 sysjob_to_jobid_value;
+};
 
 static int unixjob_traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA key,
-                              TDB_DATA data, void *state)
+                              TDB_DATA data, void *private_data)
 {
        struct printjob *pjob;
-       int *sysjob = (int *)state;
+       struct unixjob_traverse_state *state =
+               (struct unixjob_traverse_state *)private_data;
 
        if (!data.dptr || data.dsize == 0)
                return 0;
@@ -353,10 +392,10 @@ static int unixjob_traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA key,
        if (key.dsize != sizeof(uint32))
                return 0;
 
-       if (*sysjob == pjob->sysjob) {
+       if (state->sysjob == pjob->sysjob) {
                uint32 jobid = IVAL(key.dptr,0);
 
-               sysjob_to_jobid_value = jobid;
+               state->sysjob_to_jobid_value = jobid;
                return 1;
        }
 
@@ -372,19 +411,23 @@ uint32 sysjob_to_jobid(int unix_jobid)
 {
        int services = lp_numservices();
        int snum;
+       struct unixjob_traverse_state state;
 
-       sysjob_to_jobid_value = (uint32)-1;
+       state.sysjob = unix_jobid;
+       state.sysjob_to_jobid_value = (uint32)-1;
 
        for (snum = 0; snum < services; snum++) {
                struct tdb_print_db *pdb;
                if (!lp_print_ok(snum))
                        continue;
                pdb = get_print_db_byname(lp_const_servicename(snum));
-               if (pdb)
-                       tdb_traverse(pdb->tdb, unixjob_traverse_fn, &unix_jobid);
+               if (!pdb) {
+                       continue;
+               }
+               tdb_traverse(pdb->tdb, unixjob_traverse_fn, &state);
                release_print_db(pdb);
-               if (sysjob_to_jobid_value != (uint32)-1)
-                       return sysjob_to_jobid_value;
+               if (state.sysjob_to_jobid_value != (uint32)-1)
+                       return state.sysjob_to_jobid_value;
        }
        return (uint32)-1;
 }
@@ -393,7 +436,7 @@ uint32 sysjob_to_jobid(int unix_jobid)
  Send notifications based on what has changed after a pjob_store.
 ****************************************************************************/
 
-static struct {
+static const struct {
        uint32 lpq_status;
        uint32 spoolss_status;
 } lpq_to_spoolss_status_map[] = {
@@ -427,10 +470,10 @@ static uint32 map_to_spoolss_status(uint32 lpq_status)
        return 0;
 }
 
-static void pjob_store_notify(int snum, uint32 jobid, struct printjob *old_data,
+static void pjob_store_notify(const char* sharename, uint32 jobid, struct printjob *old_data,
                              struct printjob *new_data)
 {
-       BOOL new_job = False;
+       bool new_job = False;
 
        if (!old_data)
                new_job = True;
@@ -446,39 +489,40 @@ static void pjob_store_notify(int snum, uint32 jobid, struct printjob *old_data,
           --jerry (i'll feel dirty for this) */
  
        if (new_job) {
-               notify_job_submitted(snum, jobid, new_data->starttime);
-               notify_job_username(snum, jobid, new_data->user);
+               notify_job_submitted(sharename, jobid, new_data->starttime);
+               notify_job_username(sharename, jobid, new_data->user);
        }
 
        if (new_job || !strequal(old_data->jobname, new_data->jobname))
-               notify_job_name(snum, jobid, new_data->jobname);
+               notify_job_name(sharename, jobid, new_data->jobname);
 
        /* Job attributes of a new job or attributes that can be
           modified. */
 
        if (new_job || !strequal(old_data->jobname, new_data->jobname))
-               notify_job_name(snum, jobid, new_data->jobname);
+               notify_job_name(sharename, jobid, new_data->jobname);
 
        if (new_job || old_data->status != new_data->status)
-               notify_job_status(snum, jobid, map_to_spoolss_status(new_data->status));
+               notify_job_status(sharename, jobid, map_to_spoolss_status(new_data->status));
 
        if (new_job || old_data->size != new_data->size)
-               notify_job_total_bytes(snum, jobid, new_data->size);
+               notify_job_total_bytes(sharename, jobid, new_data->size);
 
        if (new_job || old_data->page_count != new_data->page_count)
-               notify_job_total_pages(snum, jobid, new_data->page_count);
+               notify_job_total_pages(sharename, jobid, new_data->page_count);
 }
 
 /****************************************************************************
  Store a job structure back to the database.
 ****************************************************************************/
 
-static BOOL pjob_store(int snum, uint32 jobid, struct printjob *pjob)
+static bool pjob_store(const char* sharename, uint32 jobid, struct printjob *pjob)
 {
+       uint32_t tmp;
        TDB_DATA                old_data, new_data;
-       BOOL                    ret = False;
-       struct tdb_print_db     *pdb = get_print_db_byname(lp_const_servicename(snum));
-       char                    *buf = NULL;
+       bool                    ret = False;
+       struct tdb_print_db     *pdb = get_print_db_byname(sharename);
+       uint8                   *buf = NULL;
        int                     len, newlen, buflen;
        
 
@@ -487,7 +531,7 @@ static BOOL pjob_store(int snum, uint32 jobid, struct printjob *pjob)
 
        /* Get old data */
 
-       old_data = tdb_fetch(pdb->tdb, print_key(jobid));
+       old_data = tdb_fetch(pdb->tdb, print_key(jobid, &tmp));
 
        /* Doh!  Now we have to pack/unpack data since the NT_DEVICEMODE was added */
 
@@ -514,15 +558,11 @@ static BOOL pjob_store(int snum, uint32 jobid, struct printjob *pjob)
                len += pack_devicemode(pjob->nt_devmode, buf+len, buflen-len);
        
                if (buflen != len) {
-                       char *tb;
-
-                       tb = (char *)Realloc(buf, len);
-                       if (!tb) {
+                       buf = (uint8 *)SMB_REALLOC(buf, len);
+                       if (!buf) {
                                DEBUG(0,("pjob_store: failed to enlarge buffer!\n"));
                                goto done;
                        }
-                       else 
-                               buf = tb;
                        newlen = len;
                }
        } while ( buflen != len );
@@ -532,7 +572,8 @@ static BOOL pjob_store(int snum, uint32 jobid, struct printjob *pjob)
 
        new_data.dptr = buf;
        new_data.dsize = len;
-       ret = (tdb_store(pdb->tdb, print_key(jobid), new_data, TDB_REPLACE) == 0);
+       ret = (tdb_store(pdb->tdb, print_key(jobid, &tmp), new_data,
+                        TDB_REPLACE) == 0);
 
        release_print_db(pdb);
 
@@ -545,13 +586,13 @@ static BOOL pjob_store(int snum, uint32 jobid, struct printjob *pjob)
                {
                        if ( unpack_pjob( old_data.dptr, old_data.dsize, &old_pjob ) != -1 )
                        {
-                               pjob_store_notify( snum, jobid, &old_pjob , pjob );
+                               pjob_store_notify( sharename, jobid, &old_pjob , pjob );
                                free_nt_devicemode( &old_pjob.nt_devmode );
                        }
                }
                else {
                        /* new job */
-                       pjob_store_notify( snum, jobid, NULL, pjob );
+                       pjob_store_notify( sharename, jobid, NULL, pjob );
                }
        }
 
@@ -566,15 +607,20 @@ done:
  Remove a job structure from the database.
 ****************************************************************************/
 
-void pjob_delete(int snum, uint32 jobid)
+void pjob_delete(const char* sharename, uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       uint32_t tmp;
+       struct printjob *pjob;
        uint32 job_status = 0;
-       struct tdb_print_db *pdb = get_print_db_byname(lp_const_servicename(snum));
+       struct tdb_print_db *pdb;
+
+       pdb = get_print_db_byname( sharename );
 
        if (!pdb)
                return;
 
+       pjob = print_job_find( sharename, jobid );
+
        if (!pjob) {
                DEBUG(5, ("pjob_delete: we were asked to delete nonexistent job %u\n",
                                        (unsigned int)jobid));
@@ -587,14 +633,14 @@ void pjob_delete(int snum, uint32 jobid)
            properly. */
        
        job_status = JOB_STATUS_DELETING|JOB_STATUS_DELETED;
-       notify_job_status(snum, jobid, job_status);
+       notify_job_status(sharename, jobid, job_status);
        
        /* Remove from printing.tdb */
 
-       tdb_delete(pdb->tdb, print_key(jobid));
-       remove_from_jobs_changed(snum, jobid);
-       release_print_db(pdb);
-       rap_jobid_delete(snum, jobid);
+       tdb_delete(pdb->tdb, print_key(jobid, &tmp));
+       remove_from_jobs_changed(sharename, jobid);
+       release_print_db( pdb );
+       rap_jobid_delete(sharename, jobid);
 }
 
 /****************************************************************************
@@ -620,7 +666,7 @@ static uint32 print_parse_jobid(char *fname)
  List a unix job in the print database.
 ****************************************************************************/
 
-static void print_unix_job(int snum, print_queue_struct *q, uint32 jobid)
+static void print_unix_job(const char *sharename, print_queue_struct *q, uint32 jobid)
 {
        struct printjob pj, *old_pj;
 
@@ -629,7 +675,7 @@ static void print_unix_job(int snum, print_queue_struct *q, uint32 jobid)
 
        /* Preserve the timestamp on an existing unix print job */
 
-       old_pj = print_job_find(snum, jobid);
+       old_pj = print_job_find(sharename, jobid);
 
        ZERO_STRUCT(pj);
 
@@ -649,16 +695,19 @@ static void print_unix_job(int snum, print_queue_struct *q, uint32 jobid)
                fstrcpy(pj.jobname, old_pj ? old_pj->jobname : q->fs_file);
        }
        fstrcpy(pj.user, old_pj ? old_pj->user : q->fs_user);
-       fstrcpy(pj.queuename, old_pj ? old_pj->queuename : lp_const_servicename(snum));
+       fstrcpy(pj.queuename, old_pj ? old_pj->queuename : sharename );
 
-       pjob_store(snum, jobid, &pj);
+       pjob_store(sharename, jobid, &pj);
 }
 
 
 struct traverse_struct {
        print_queue_struct *queue;
        int qcount, snum, maxcount, total_jobs;
+       const char *sharename;
        time_t lpq_time;
+       const char *lprm_command;
+       struct printif *print_if;
 };
 
 /****************************************************************************
@@ -681,11 +730,6 @@ static int traverse_fn_delete(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void
        free_nt_devicemode( &pjob.nt_devmode );
 
 
-       if (ts->snum != lp_servicenumber(pjob.queuename)) {
-               /* this isn't for the queue we are looking at - this cannot happen with the split tdb's. JRA */
-               return 0;
-       }
-
        if (!pjob.smbjob) {
                /* remove a unix job if it isn't in the system queue any more */
 
@@ -697,7 +741,7 @@ static int traverse_fn_delete(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void
                if (i == ts->qcount) {
                        DEBUG(10,("traverse_fn_delete: pjob %u deleted due to !smbjob\n",
                                                (unsigned int)jobid ));
-                       pjob_delete(ts->snum, jobid);
+                       pjob_delete(ts->sharename, jobid);
                        return 0;
                } 
 
@@ -710,10 +754,10 @@ static int traverse_fn_delete(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void
                /* if a job is not spooled and the process doesn't
                    exist then kill it. This cleans up after smbd
                    deaths */
-               if (!process_exists(pjob.pid)) {
+               if (!process_exists_by_pid(pjob.pid)) {
                        DEBUG(10,("traverse_fn_delete: pjob %u deleted due to !process_exists (%u)\n",
                                                (unsigned int)jobid, (unsigned int)pjob.pid ));
-                       pjob_delete(ts->snum, jobid);
+                       pjob_delete(ts->sharename, jobid);
                } else
                        ts->total_jobs++;
                return 0;
@@ -723,9 +767,38 @@ static int traverse_fn_delete(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void
        
        if ( pjob.smbjob ) {
                for (i=0;i<ts->qcount;i++) {
-                       uint32 curr_jobid = print_parse_jobid(ts->queue[i].fs_file);
-                       if (jobid == curr_jobid)
+                       uint32 curr_jobid;
+
+                       if ( pjob.status == LPQ_DELETED )
+                               continue;
+
+                       curr_jobid = print_parse_jobid(ts->queue[i].fs_file);
+
+                       if (jobid == curr_jobid) {
+
+                               /* try to clean up any jobs that need to be deleted */
+
+                               if ( pjob.status == LPQ_DELETING ) {
+                                       int result;
+
+                                       result = (*(ts->print_if->job_delete))( 
+                                               ts->sharename, ts->lprm_command, &pjob );
+
+                                       if ( result != 0 ) {
+                                               /* if we can't delete, then reset the job status */
+                                               pjob.status = LPQ_QUEUED;
+                                               pjob_store(ts->sharename, jobid, &pjob);
+                                       }
+                                       else {
+                                               /* if we deleted the job, the remove the tdb record */
+                                               pjob_delete(ts->sharename, jobid);
+                                               pjob.status = LPQ_DELETED;
+                                       }
+                                               
+                               }
+
                                break;
+                       }
                }
        }
        
@@ -746,15 +819,16 @@ static int traverse_fn_delete(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void
                                                (unsigned int)jobid,
                                                (unsigned int)pjob.starttime,
                                                (unsigned int)ts->lpq_time ));
-                       pjob_delete(ts->snum, jobid);
+                       pjob_delete(ts->sharename, jobid);
                } else
                        ts->total_jobs++;
                return 0;
        }
 
-       /* Save the pjob attributes we will store. */
-       /* FIXME!!! This is the only place where queue->job 
+       /* Save the pjob attributes we will store. 
+          FIXME!!! This is the only place where queue->job 
           represents the SMB jobid      --jerry */
+
        ts->queue[i].job = jobid;               
        ts->queue[i].size = pjob.size;
        ts->queue[i].page_count = pjob.page_count;
@@ -773,15 +847,14 @@ static int traverse_fn_delete(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void
  Check if the print queue has been updated recently enough.
 ****************************************************************************/
 
-static void print_cache_flush(int snum)
+static void print_cache_flush(const char *sharename)
 {
        fstring key;
-       const char *printername = lp_const_servicename(snum);
-       struct tdb_print_db *pdb = get_print_db_byname(printername);
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
 
        if (!pdb)
                return;
-       slprintf(key, sizeof(key)-1, "CACHE/%s", printername);
+       slprintf(key, sizeof(key)-1, "CACHE/%s", sharename);
        tdb_store_int32(pdb->tdb, key, -1);
        release_print_db(pdb);
 }
@@ -790,18 +863,17 @@ static void print_cache_flush(int snum)
  Check if someone already thinks they are doing the update.
 ****************************************************************************/
 
-static pid_t get_updating_pid(fstring printer_name)
+static pid_t get_updating_pid(const char *sharename)
 {
        fstring keystr;
        TDB_DATA data, key;
        pid_t updating_pid;
-       struct tdb_print_db *pdb = get_print_db_byname(printer_name);
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
 
        if (!pdb)
                return (pid_t)-1;
-       slprintf(keystr, sizeof(keystr)-1, "UPDATING/%s", printer_name);
-       key.dptr = keystr;
-       key.dsize = strlen(keystr);
+       slprintf(keystr, sizeof(keystr)-1, "UPDATING/%s", sharename);
+       key = string_tdb_data(keystr);
 
        data = tdb_fetch(pdb->tdb, key);
        release_print_db(pdb);
@@ -813,7 +885,7 @@ static pid_t get_updating_pid(fstring printer_name)
        updating_pid = IVAL(data.dptr, 0);
        SAFE_FREE(data.dptr);
 
-       if (process_exists(updating_pid))
+       if (process_exists_by_pid(updating_pid))
                return updating_pid;
 
        return (pid_t)-1;
@@ -824,7 +896,7 @@ static pid_t get_updating_pid(fstring printer_name)
  in the tdb.
 ****************************************************************************/
 
-static void set_updating_pid(const fstring printer_name, BOOL delete)
+static void set_updating_pid(const fstring sharename, bool updating)
 {
        fstring keystr;
        TDB_DATA key;
@@ -832,23 +904,26 @@ static void set_updating_pid(const fstring printer_name, BOOL delete)
        pid_t updating_pid = sys_getpid();
        uint8 buffer[4];
        
-       struct tdb_print_db *pdb = get_print_db_byname(printer_name);
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
 
        if (!pdb)
                return;
 
-       slprintf(keystr, sizeof(keystr)-1, "UPDATING/%s", printer_name);
-       key.dptr = keystr;
-       key.dsize = strlen(keystr);
+       slprintf(keystr, sizeof(keystr)-1, "UPDATING/%s", sharename);
+       key = string_tdb_data(keystr);
+       
+       DEBUG(5, ("set_updating_pid: %s updating lpq cache for print share %s\n", 
+               updating ? "" : "not ",
+               sharename ));
 
-       if (delete) {
+       if ( !updating ) {
                tdb_delete(pdb->tdb, key);
                release_print_db(pdb);
                return;
        }
        
        SIVAL( buffer, 0, updating_pid);
-       data.dptr = (void *)buffer;
+       data.dptr = buffer;
        data.dsize = 4;         /* we always assume this is a 4 byte value */
 
        tdb_store(pdb->tdb, key, data, TDB_REPLACE);    
@@ -879,26 +954,31 @@ static int printjob_comp(print_queue_struct *j1, print_queue_struct *j2)
 
 /****************************************************************************
  Store the sorted queue representation for later portmon retrieval.
+ Skip deleted jobs
 ****************************************************************************/
 
 static void store_queue_struct(struct tdb_print_db *pdb, struct traverse_struct *pts)
 {
-       TDB_DATA data, key;
+       TDB_DATA data;
        int max_reported_jobs = lp_max_reported_jobs(pts->snum);
        print_queue_struct *queue = pts->queue;
        size_t len;
        size_t i;
-       uint qcount;
+       unsigned int qcount;
 
        if (max_reported_jobs && (max_reported_jobs < pts->qcount))
                pts->qcount = max_reported_jobs;
-       qcount = pts->qcount;
+       qcount = 0;
 
        /* Work out the size. */
        data.dsize = 0;
        data.dsize += tdb_pack(NULL, 0, "d", qcount);
 
        for (i = 0; i < pts->qcount; i++) {
+               if ( queue[i].status == LPQ_DELETED )
+                       continue;
+
+               qcount++;
                data.dsize += tdb_pack(NULL, 0, "ddddddff",
                                (uint32)queue[i].job,
                                (uint32)queue[i].size,
@@ -910,12 +990,15 @@ static void store_queue_struct(struct tdb_print_db *pdb, struct traverse_struct
                                queue[i].fs_file);
        }
 
-       if ((data.dptr = malloc(data.dsize)) == NULL)
+       if ((data.dptr = (uint8 *)SMB_MALLOC(data.dsize)) == NULL)
                return;
 
         len = 0;
        len += tdb_pack(data.dptr + len, data.dsize - len, "d", qcount);
        for (i = 0; i < pts->qcount; i++) {
+               if ( queue[i].status == LPQ_DELETED )
+                       continue;
+
                len += tdb_pack(data.dptr + len, data.dsize - len, "ddddddff",
                                (uint32)queue[i].job,
                                (uint32)queue[i].size,
@@ -927,22 +1010,19 @@ static void store_queue_struct(struct tdb_print_db *pdb, struct traverse_struct
                                queue[i].fs_file);
        }
 
-       key.dptr = "INFO/linear_queue_array";
-       key.dsize = strlen(key.dptr);
-       tdb_store(pdb->tdb, key, data, TDB_REPLACE);
+       tdb_store(pdb->tdb, string_tdb_data("INFO/linear_queue_array"), data,
+                 TDB_REPLACE);
        SAFE_FREE(data.dptr);
        return;
 }
 
 static TDB_DATA get_jobs_changed_data(struct tdb_print_db *pdb)
 {
-       TDB_DATA data, key;
+       TDB_DATA data;
 
-       key.dptr = "INFO/jobs_changed";
-       key.dsize = strlen(key.dptr);
        ZERO_STRUCT(data);
 
-       data = tdb_fetch(pdb->tdb, key);
+       data = tdb_fetch(pdb->tdb, string_tdb_data("INFO/jobs_changed"));
        if (data.dptr == NULL || data.dsize == 0 || (data.dsize % 4 != 0)) {
                SAFE_FREE(data.dptr);
                ZERO_STRUCT(data);
@@ -951,7 +1031,7 @@ static TDB_DATA get_jobs_changed_data(struct tdb_print_db *pdb)
        return data;
 }
 
-static void check_job_changed(int snum, TDB_DATA data, uint32 jobid)
+static void check_job_changed(const char *sharename, TDB_DATA data, uint32 jobid)
 {
        unsigned int i;
        unsigned int job_count = data.dsize / 4;
@@ -961,104 +1041,125 @@ static void check_job_changed(int snum, TDB_DATA data, uint32 jobid)
 
                ch_jobid = IVAL(data.dptr, i*4);
                if (ch_jobid == jobid)
-                       remove_from_jobs_changed(snum, jobid);
+                       remove_from_jobs_changed(sharename, jobid);
        }
 }
 
 /****************************************************************************
Update the internal database from the system print queue for a queue.
Check if the print queue has been updated recently enough.
 ****************************************************************************/
 
-static void print_queue_update_internal(int snum)
+static bool print_cache_expired(const char *sharename, bool check_pending)
 {
-       int i, qcount;
-       print_queue_struct *queue = NULL;
-       print_status_struct status;
-       print_status_struct old_status;
-       struct printjob *pjob;
-       struct traverse_struct tstruct;
-       fstring keystr, printer_name, cachestr;
-       TDB_DATA data, key;
-       TDB_DATA jcdata;
-       struct tdb_print_db *pdb;
-       struct printif *current_printif = get_printer_fns( snum );
+       fstring key;
+       time_t last_qscan_time, time_now = time(NULL);
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
+       bool result = False;
 
-       fstrcpy(printer_name, lp_const_servicename(snum));
-       pdb = get_print_db_byname(printer_name);
        if (!pdb)
-               return;
+               return False;
+
+       snprintf(key, sizeof(key), "CACHE/%s", sharename);
+       last_qscan_time = (time_t)tdb_fetch_int32(pdb->tdb, key);
 
        /*
-        * Check to see if someone else is doing this update.
-        * This is essentially a mutex on the update.
+        * Invalidate the queue for 3 reasons.
+        * (1). last queue scan time == -1.
+        * (2). Current time - last queue scan time > allowed cache time.
+        * (3). last queue scan time > current time + MAX_CACHE_VALID_TIME (1 hour by default).
+        * This last test picks up machines for which the clock has been moved
+        * forward, an lpq scan done and then the clock moved back. Otherwise
+        * that last lpq scan would stay around for a loooong loooong time... :-). JRA.
         */
 
-       if (get_updating_pid(printer_name) != -1) {
-               release_print_db(pdb);
-               return;
+       if (last_qscan_time == ((time_t)-1) 
+               || (time_now - last_qscan_time) >= lp_lpqcachetime() 
+               || last_qscan_time > (time_now + MAX_CACHE_VALID_TIME)) 
+       {
+               uint32 u;
+               time_t msg_pending_time;
+
+               DEBUG(4, ("print_cache_expired: cache expired for queue %s " 
+                       "(last_qscan_time = %d, time now = %d, qcachetime = %d)\n", 
+                       sharename, (int)last_qscan_time, (int)time_now, 
+                       (int)lp_lpqcachetime() ));
+
+               /* check if another smbd has already sent a message to update the 
+                  queue.  Give the pending message one minute to clear and 
+                  then send another message anyways.  Make sure to check for 
+                  clocks that have been run forward and then back again. */
+
+               snprintf(key, sizeof(key), "MSG_PENDING/%s", sharename);
+
+               if ( check_pending 
+                       && tdb_fetch_uint32( pdb->tdb, key, &u ) 
+                       && (msg_pending_time=u) > 0
+                       && msg_pending_time <= time_now 
+                       && (time_now - msg_pending_time) < 60 ) 
+               {
+                       DEBUG(4,("print_cache_expired: message already pending for %s.  Accepting cache\n",
+                               sharename));
+                       goto done;
+               }
+               
+               result = True;
        }
 
-       /* Lock the queue for the database update */
+done:
+       release_print_db(pdb);
+       return result;
+}
 
-       slprintf(keystr, sizeof(keystr) - 1, "LOCK/%s", printer_name);
-       /* Only wait 10 seconds for this. */
-       if (tdb_lock_bystring(pdb->tdb, keystr, 10) == -1) {
-               DEBUG(0,("print_queue_update: Failed to lock printer %s database\n", printer_name));
-               release_print_db(pdb);
-               return;
-       }
+/****************************************************************************
+ main work for updating the lpq cahe for a printer queue
+****************************************************************************/
 
-       /*
-        * Ensure that no one else got in here.
-        * If the updating pid is still -1 then we are
-        * the winner.
-        */
+static void print_queue_update_internal( const char *sharename, 
+                                         struct printif *current_printif,
+                                         char *lpq_command, char *lprm_command )
+{
+       int i, qcount;
+       print_queue_struct *queue = NULL;
+       print_status_struct status;
+       print_status_struct old_status;
+       struct printjob *pjob;
+       struct traverse_struct tstruct;
+       TDB_DATA data, key;
+       TDB_DATA jcdata;
+       fstring keystr, cachestr;
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
 
-       if (get_updating_pid(printer_name) != -1) {
-               /*
-                * Someone else is doing the update, exit.
-                */
-               tdb_unlock_bystring(pdb->tdb, keystr);
-               release_print_db(pdb);
+       if (!pdb) {
                return;
        }
-
-       /*
-        * We're going to do the update ourselves.
-        */
-
-       /* Tell others we're doing the update. */
-       set_updating_pid(printer_name, False);
-
-       /*
-        * Allow others to enter and notice we're doing
-        * the update.
-        */
-
-       tdb_unlock_bystring(pdb->tdb, keystr);
+       
+       DEBUG(5,("print_queue_update_internal: printer = %s, type = %d, lpq command = [%s]\n",
+               sharename, current_printif->type, lpq_command));
 
        /*
         * Update the cache time FIRST ! Stops others even
         * attempting to get the lock and doing this
         * if the lpq takes a long time.
         */
-
-       slprintf(cachestr, sizeof(cachestr)-1, "CACHE/%s", printer_name);
+        
+       slprintf(cachestr, sizeof(cachestr)-1, "CACHE/%s", sharename);
        tdb_store_int32(pdb->tdb, cachestr, (int)time(NULL));
 
         /* get the current queue using the appropriate interface */
        ZERO_STRUCT(status);
 
-       qcount = (*(current_printif->queue_get))(snum, &queue, &status);
+       qcount = (*(current_printif->queue_get))(sharename, 
+               current_printif->type, 
+               lpq_command, &queue, &status);
 
-       DEBUG(3, ("%d job%s in queue for %s\n", qcount, (qcount != 1) ?
-               "s" : "", printer_name));
+       DEBUG(3, ("print_queue_update_internal: %d job%s in queue for %s\n", 
+               qcount, (qcount != 1) ? "s" : "", sharename));
 
        /* Sort the queue by submission time otherwise they are displayed
           in hash order. */
 
        qsort(queue, qcount, sizeof(print_queue_struct),
-             QSORT_CAST(printjob_comp));
+               QSORT_CAST(printjob_comp));
 
        /*
          any job in the internal database that is marked as spooled
@@ -1078,24 +1179,30 @@ static void print_queue_update_internal(int snum)
 
                if (jobid == (uint32)-1) {
                        /* assume its a unix print job */
-                       print_unix_job(snum, &queue[i], jobid);
+                       print_unix_job(sharename, &queue[i], jobid);
                        continue;
                }
 
                /* we have an active SMB print job - update its status */
-               pjob = print_job_find(snum, jobid);
+               pjob = print_job_find(sharename, jobid);
                if (!pjob) {
                        /* err, somethings wrong. Probably smbd was restarted
                           with jobs in the queue. All we can do is treat them
                           like unix jobs. Pity. */
-                       print_unix_job(snum, &queue[i], jobid);
+                       print_unix_job(sharename, &queue[i], jobid);
                        continue;
                }
 
                pjob->sysjob = queue[i].job;
-               pjob->status = queue[i].status;
-               pjob_store(snum, jobid, pjob);
-               check_job_changed(snum, jcdata, jobid);
+
+               /* don't reset the status on jobs to be deleted */
+
+               if ( pjob->status != LPQ_DELETING )
+                       pjob->status = queue[i].status;
+
+               pjob_store(sharename, jobid, pjob);
+
+               check_job_changed(sharename, jcdata, jobid);
        }
 
        SAFE_FREE(jcdata.dptr);
@@ -1104,9 +1211,12 @@ static void print_queue_update_internal(int snum)
            system queue */
        tstruct.queue = queue;
        tstruct.qcount = qcount;
-       tstruct.snum = snum;
+       tstruct.snum = -1;
        tstruct.total_jobs = 0;
        tstruct.lpq_time = time(NULL);
+       tstruct.sharename = sharename;
+       tstruct.lprm_command = lprm_command;
+       tstruct.print_if = current_printif;
 
        tdb_traverse(pdb->tdb, traverse_fn_delete, (void *)&tstruct);
 
@@ -1115,23 +1225,22 @@ static void print_queue_update_internal(int snum)
 
        SAFE_FREE(tstruct.queue);
 
-       DEBUG(10,("print_queue_update: printer %s INFO/total_jobs = %d\n",
-                               printer_name, tstruct.total_jobs ));
+       DEBUG(10,("print_queue_update_internal: printer %s INFO/total_jobs = %d\n",
+                               sharename, tstruct.total_jobs ));
 
        tdb_store_int32(pdb->tdb, "INFO/total_jobs", tstruct.total_jobs);
 
-       get_queue_status(snum, &old_status);
+       get_queue_status(sharename, &old_status);
        if (old_status.qcount != qcount)
-               DEBUG(10,("print_queue_update: queue status change %d jobs -> %d jobs for printer %s\n",
-                                       old_status.qcount, qcount, printer_name ));
+               DEBUG(10,("print_queue_update_internal: queue status change %d jobs -> %d jobs for printer %s\n",
+                                       old_status.qcount, qcount, sharename));
 
        /* store the new queue status structure */
-       slprintf(keystr, sizeof(keystr)-1, "STATUS/%s", printer_name);
-       key.dptr = keystr;
-       key.dsize = strlen(keystr);
+       slprintf(keystr, sizeof(keystr)-1, "STATUS/%s", sharename);
+       key = string_tdb_data(keystr);
 
        status.qcount = qcount;
-       data.dptr = (void *)&status;
+       data.dptr = (uint8 *)&status;
        data.dsize = sizeof(status);
        tdb_store(pdb->tdb, key, data, TDB_REPLACE);    
 
@@ -1140,22 +1249,142 @@ static void print_queue_update_internal(int snum)
         * as little as possible...
         */
 
-       slprintf(keystr, sizeof(keystr)-1, "CACHE/%s", printer_name);
+       slprintf(keystr, sizeof(keystr)-1, "CACHE/%s", sharename);
        tdb_store_int32(pdb->tdb, keystr, (int32)time(NULL));
 
+       /* clear the msg pending record for this queue */
+
+       snprintf(keystr, sizeof(keystr), "MSG_PENDING/%s", sharename);
+
+       if ( !tdb_store_uint32( pdb->tdb, keystr, 0 ) ) {
+               /* log a message but continue on */
+
+               DEBUG(0,("print_queue_update: failed to store MSG_PENDING flag for [%s]!\n",
+                       sharename));
+       }
+
+       release_print_db( pdb );
+
+       return;
+}
+
+/****************************************************************************
+ Update the internal database from the system print queue for a queue.
+ obtain a lock on the print queue before proceeding (needed when mutiple
+ smbd processes maytry to update the lpq cache concurrently).
+****************************************************************************/
+
+static void print_queue_update_with_lock( const char *sharename, 
+                                          struct printif *current_printif,
+                                          char *lpq_command, char *lprm_command )
+{
+       fstring keystr;
+       struct tdb_print_db *pdb;
+
+       DEBUG(5,("print_queue_update_with_lock: printer share = %s\n", sharename));
+       pdb = get_print_db_byname(sharename);
+       if (!pdb)
+               return;
+
+       if ( !print_cache_expired(sharename, False) ) {
+               DEBUG(5,("print_queue_update_with_lock: print cache for %s is still ok\n", sharename));
+               release_print_db(pdb);
+               return;
+       }
+       
+       /*
+        * Check to see if someone else is doing this update.
+        * This is essentially a mutex on the update.
+        */
+
+       if (get_updating_pid(sharename) != -1) {
+               release_print_db(pdb);
+               return;
+       }
+
+       /* Lock the queue for the database update */
+
+       slprintf(keystr, sizeof(keystr) - 1, "LOCK/%s", sharename);
+       /* Only wait 10 seconds for this. */
+       if (tdb_lock_bystring_with_timeout(pdb->tdb, keystr, 10) == -1) {
+               DEBUG(0,("print_queue_update_with_lock: Failed to lock printer %s database\n", sharename));
+               release_print_db(pdb);
+               return;
+       }
+
+       /*
+        * Ensure that no one else got in here.
+        * If the updating pid is still -1 then we are
+        * the winner.
+        */
+
+       if (get_updating_pid(sharename) != -1) {
+               /*
+                * Someone else is doing the update, exit.
+                */
+               tdb_unlock_bystring(pdb->tdb, keystr);
+               release_print_db(pdb);
+               return;
+       }
+
+       /*
+        * We're going to do the update ourselves.
+        */
+
+       /* Tell others we're doing the update. */
+       set_updating_pid(sharename, True);
+
+       /*
+        * Allow others to enter and notice we're doing
+        * the update.
+        */
+
+       tdb_unlock_bystring(pdb->tdb, keystr);
+
+       /* do the main work now */
+       
+       print_queue_update_internal( sharename, current_printif, 
+               lpq_command, lprm_command );
+       
        /* Delete our pid from the db. */
-       set_updating_pid(printer_name, True);
+       set_updating_pid(sharename, False);
        release_print_db(pdb);
 }
 
 /****************************************************************************
 this is the receive function of the background lpq updater
 ****************************************************************************/
-static void print_queue_receive(int msg_type, pid_t src, void *buf, size_t len)
+static void print_queue_receive(struct messaging_context *msg,
+                               void *private_data,
+                               uint32_t msg_type,
+                               struct server_id server_id,
+                               DATA_BLOB *data)
 {
-       int snum;
-       snum=*((int *)buf);
-       print_queue_update_internal(snum);
+       fstring sharename;
+       char *lpqcommand = NULL, *lprmcommand = NULL;
+       int printing_type;
+       size_t len;
+
+       len = tdb_unpack( (uint8 *)data->data, data->length, "fdPP",
+               sharename,
+               &printing_type,
+               &lpqcommand,
+               &lprmcommand );
+
+       if ( len == -1 ) {
+               SAFE_FREE(lpqcommand);
+               SAFE_FREE(lprmcommand);
+               DEBUG(0,("print_queue_receive: Got invalid print queue update message\n"));
+               return;
+       }
+
+       print_queue_update_with_lock(sharename, 
+               get_printer_fns_from_type((enum printing_types)printing_type),
+               lpqcommand, lprmcommand );
+
+       SAFE_FREE(lpqcommand);
+       SAFE_FREE(lprmcommand);
+       return;
 }
 
 static pid_t background_lpq_updater_pid = -1;
@@ -1177,18 +1406,20 @@ void start_background_queue(void)
                /* Child. */
                DEBUG(5,("start_background_queue: background LPQ thread started\n"));
 
-               claim_connection( NULL, "smbd lpq backend", 0, False, 
-                       FLAG_MSG_GENERAL|FLAG_MSG_SMBD|FLAG_MSG_PRINT_GENERAL);
-
-               if (!locking_init(0)) {
-                       exit(1);
+               if (!reinit_after_fork(smbd_messaging_context(), true)) {
+                       DEBUG(0,("reinit_after_fork() failed\n"));
+                       smb_panic("reinit_after_fork() failed");
                }
 
-               if (!print_backend_init()) {
+               claim_connection( NULL, "smbd lpq backend",
+                       FLAG_MSG_GENERAL|FLAG_MSG_SMBD|FLAG_MSG_PRINT_GENERAL);
+
+               if (!locking_init()) {
                        exit(1);
                }
 
-               message_register(MSG_PRINTER_UPDATE, print_queue_receive);
+               messaging_register(smbd_messaging_context(), NULL,
+                                  MSG_PRINTER_UPDATE, print_queue_receive);
                
                DEBUG(5,("start_background_queue: background LPQ thread waiting for messages\n"));
                while (1) {
@@ -1197,7 +1428,7 @@ void start_background_queue(void)
                        /* check for some essential signals first */
                        
                         if (got_sig_term) {
-                                exit_server("Caught TERM signal");
+                                exit_server_cleanly(NULL);
                         }
 
                         if (reload_after_sighup) {
@@ -1210,7 +1441,12 @@ void start_background_queue(void)
                        /* now check for messages */
                        
                        DEBUG(10,("start_background_queue: background LPQ thread got a message\n"));
-                       message_dispatch();
+                       message_dispatch(smbd_messaging_context());
+
+                       /* process any pending print change notify messages */
+
+                       print_notify_send_messages(smbd_messaging_context(),
+                                                  0);
                }
        }
 }
@@ -1218,21 +1454,133 @@ void start_background_queue(void)
 /****************************************************************************
 update the internal database from the system print queue for a queue
 ****************************************************************************/
-static void print_queue_update(int snum)
+
+static void print_queue_update(int snum, bool force)
 {
-       /* 
-        * Make sure that the backgroup queueu process exists.  
-        * Otherwise just do the update ourselves 
+       fstring key;
+       fstring sharename;
+       char *lpqcommand = NULL;
+       char *lprmcommand = NULL;
+       uint8 *buffer = NULL;
+       size_t len = 0;
+       size_t newlen;
+       struct tdb_print_db *pdb;
+       int type;
+       struct printif *current_printif;
+       TALLOC_CTX *ctx = talloc_tos();
+
+       fstrcpy( sharename, lp_const_servicename(snum));
+
+       /* don't strip out characters like '$' from the printername */
+
+       lpqcommand = talloc_string_sub2(ctx,
+                       lp_lpqcommand(snum),
+                       "%p",
+                       PRINTERNAME(snum),
+                       false, false, false);
+       if (!lpqcommand) {
+               return;
+       }
+       lpqcommand = talloc_sub_advanced(ctx,
+                       lp_servicename(snum),
+                       current_user_info.unix_name,
+                       "",
+                       current_user.ut.gid,
+                       get_current_username(),
+                       current_user_info.domain,
+                       lpqcommand);
+       if (!lpqcommand) {
+               return;
+       }
+
+       lprmcommand = talloc_string_sub2(ctx,
+                       lp_lprmcommand(snum),
+                       "%p",
+                       PRINTERNAME(snum),
+                       false, false, false);
+       if (!lprmcommand) {
+               return;
+       }
+       lprmcommand = talloc_sub_advanced(ctx,
+                       lp_servicename(snum),
+                       current_user_info.unix_name,
+                       "",
+                       current_user.ut.gid,
+                       get_current_username(),
+                       current_user_info.domain,
+                       lprmcommand);
+       if (!lprmcommand) {
+               return;
+       }
+
+       /*
+        * Make sure that the background queue process exists.
+        * Otherwise just do the update ourselves
         */
-          
-       if ( background_lpq_updater_pid != -1 ) {
-               become_root();
-               message_send_pid(background_lpq_updater_pid,
-                                MSG_PRINTER_UPDATE, &snum, sizeof(snum),
-                                False);
-               unbecome_root();
-       } else
-               print_queue_update_internal( snum );
+
+       if ( force || background_lpq_updater_pid == -1 ) {
+               DEBUG(4,("print_queue_update: updating queue [%s] myself\n", sharename));
+               current_printif = get_printer_fns( snum );
+               print_queue_update_with_lock( sharename, current_printif, lpqcommand, lprmcommand );
+
+               return;
+       }
+
+       type = lp_printing(snum);
+
+       /* get the length */
+
+       len = tdb_pack( NULL, 0, "fdPP",
+               sharename,
+               type,
+               lpqcommand,
+               lprmcommand );
+
+       buffer = SMB_XMALLOC_ARRAY( uint8, len );
+
+       /* now pack the buffer */
+       newlen = tdb_pack( buffer, len, "fdPP",
+               sharename,
+               type,
+               lpqcommand,
+               lprmcommand );
+
+       SMB_ASSERT( newlen == len );
+
+       DEBUG(10,("print_queue_update: Sending message -> printer = %s, "
+               "type = %d, lpq command = [%s] lprm command = [%s]\n", 
+               sharename, type, lpqcommand, lprmcommand ));
+
+       /* here we set a msg pending record for other smbd processes 
+          to throttle the number of duplicate print_queue_update msgs
+          sent.  */
+
+       pdb = get_print_db_byname(sharename);
+       if (!pdb) {
+               SAFE_FREE(buffer);
+               return;
+       }
+
+       snprintf(key, sizeof(key), "MSG_PENDING/%s", sharename);
+
+       if ( !tdb_store_uint32( pdb->tdb, key, time(NULL) ) ) {
+               /* log a message but continue on */
+
+               DEBUG(0,("print_queue_update: failed to store MSG_PENDING flag for [%s]!\n",
+                       sharename));
+       }
+
+       release_print_db( pdb );
+
+       /* finally send the message */
+       
+       messaging_send_buf(smbd_messaging_context(),
+                          pid_to_procid(background_lpq_updater_pid),
+                          MSG_PRINTER_UPDATE, (uint8 *)buffer, len);
+
+       SAFE_FREE( buffer );
+
+       return;
 }
 
 /****************************************************************************
@@ -1240,14 +1588,14 @@ static void print_queue_update(int snum)
  updates only to interested smbd's. 
 ****************************************************************************/
 
-BOOL print_notify_register_pid(int snum)
+bool print_notify_register_pid(int snum)
 {
        TDB_DATA data;
        struct tdb_print_db *pdb = NULL;
        TDB_CONTEXT *tdb = NULL;
        const char *printername;
        uint32 mypid = (uint32)sys_getpid();
-       BOOL ret = False;
+       bool ret = False;
        size_t i;
 
        /* if (snum == -1), then the change notify request was
@@ -1275,7 +1623,7 @@ BOOL print_notify_register_pid(int snum)
                tdb = pdb->tdb;
        }
 
-       if (tdb_lock_bystring(tdb, NOTIFY_PID_LIST_KEY, 10) == -1) {
+       if (tdb_lock_bystring_with_timeout(tdb, NOTIFY_PID_LIST_KEY, 10) == -1) {
                DEBUG(0,("print_notify_register_pid: Failed to lock printer %s\n",
                                        printername));
                if (pdb)
@@ -1297,7 +1645,7 @@ BOOL print_notify_register_pid(int snum)
 
        if (i == data.dsize) {
                /* We weren't in the list. Realloc. */
-               data.dptr = Realloc(data.dptr, data.dsize + 8);
+               data.dptr = (uint8 *)SMB_REALLOC(data.dptr, data.dsize + 8);
                if (!data.dptr) {
                        DEBUG(0,("print_notify_register_pid: Relloc fail for printer %s\n",
                                                printername));
@@ -1331,7 +1679,7 @@ list for printer %s\n", printername));
  updates only to interested smbd's. 
 ****************************************************************************/
 
-BOOL print_notify_deregister_pid(int snum)
+bool print_notify_deregister_pid(int snum)
 {
        TDB_DATA data;
        struct tdb_print_db *pdb = NULL;
@@ -1339,7 +1687,7 @@ BOOL print_notify_deregister_pid(int snum)
        const char *printername;
        uint32 mypid = (uint32)sys_getpid();
        size_t i;
-       BOOL ret = False;
+       bool ret = False;
 
        /* if ( snum == -1 ), we are deregister a print server handle
           which means to deregister on all print queues */
@@ -1365,7 +1713,7 @@ BOOL print_notify_deregister_pid(int snum)
                tdb = pdb->tdb;
        }
 
-       if (tdb_lock_bystring(tdb, NOTIFY_PID_LIST_KEY, 10) == -1) {
+       if (tdb_lock_bystring_with_timeout(tdb, NOTIFY_PID_LIST_KEY, 10) == -1) {
                DEBUG(0,("print_notify_register_pid: Failed to lock \
 printer %s database\n", printername));
                if (pdb)
@@ -1420,14 +1768,15 @@ list for printer %s\n", printername));
  Check if a jobid is valid. It is valid if it exists in the database.
 ****************************************************************************/
 
-BOOL print_job_exists(int snum, uint32 jobid)
+bool print_job_exists(const char* sharename, uint32 jobid)
 {
-       struct tdb_print_db *pdb = get_print_db_byname(lp_const_servicename(snum));
-       BOOL ret;
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
+       bool ret;
+       uint32_t tmp;
 
        if (!pdb)
                return False;
-       ret = tdb_exists(pdb->tdb, print_key(jobid));
+       ret = tdb_exists(pdb->tdb, print_key(jobid, &tmp));
        release_print_db(pdb);
        return ret;
 }
@@ -1436,9 +1785,9 @@ BOOL print_job_exists(int snum, uint32 jobid)
  Give the fd used for a jobid.
 ****************************************************************************/
 
-int print_job_fd(int snum, uint32 jobid)
+int print_job_fd(const char* sharename, uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       struct printjob *pjob = print_job_find(sharename, jobid);
        if (!pjob)
                return -1;
        /* don't allow another process to get this info - it is meaningless */
@@ -1453,9 +1802,9 @@ int print_job_fd(int snum, uint32 jobid)
  has not been spooled.
 ****************************************************************************/
 
-char *print_job_fname(int snum, uint32 jobid)
+char *print_job_fname(const char* sharename, uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       struct printjob *pjob = print_job_find(sharename, jobid);
        if (!pjob || pjob->spooled || pjob->pid != sys_getpid())
                return NULL;
        return pjob->filename;
@@ -1468,9 +1817,9 @@ char *print_job_fname(int snum, uint32 jobid)
  has not been spooled.
 ****************************************************************************/
 
-NT_DEVICEMODE *print_job_devmode(int snum, uint32 jobid)
+NT_DEVICEMODE *print_job_devmode(const char* sharename, uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       struct printjob *pjob = print_job_find(sharename, jobid);
        
        if ( !pjob )
                return NULL;
@@ -1482,7 +1831,7 @@ NT_DEVICEMODE *print_job_devmode(int snum, uint32 jobid)
  Set the place in the queue for a job.
 ****************************************************************************/
 
-BOOL print_job_set_place(int snum, uint32 jobid, int place)
+bool print_job_set_place(const char *sharename, uint32 jobid, int place)
 {
        DEBUG(2,("print_job_set_place not implemented yet\n"));
        return False;
@@ -1492,33 +1841,38 @@ BOOL print_job_set_place(int snum, uint32 jobid, int place)
  Set the name of a job. Only possible for owner.
 ****************************************************************************/
 
-BOOL print_job_set_name(int snum, uint32 jobid, char *name)
+bool print_job_set_name(const char *sharename, uint32 jobid, char *name)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       struct printjob *pjob;
+
+       pjob = print_job_find(sharename, jobid);
        if (!pjob || pjob->pid != sys_getpid())
                return False;
 
        fstrcpy(pjob->jobname, name);
-       return pjob_store(snum, jobid, pjob);
+       return pjob_store(sharename, jobid, pjob);
 }
 
 /***************************************************************************
  Remove a jobid from the 'jobs changed' list.
 ***************************************************************************/
 
-static BOOL remove_from_jobs_changed(int snum, uint32 jobid)
+static bool remove_from_jobs_changed(const char* sharename, uint32 jobid)
 {
-       const char *printername = lp_const_servicename(snum);
-       struct tdb_print_db *pdb = get_print_db_byname(printername);
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
        TDB_DATA data, key;
        size_t job_count, i;
-       BOOL ret = False;
-       BOOL gotlock = False;
+       bool ret = False;
+       bool gotlock = False;
+
+       if (!pdb) {
+               return False;
+       }
 
-       key.dptr = "INFO/jobs_changed";
-       key.dsize = strlen(key.dptr);
        ZERO_STRUCT(data);
 
+       key = string_tdb_data("INFO/jobs_changed");
+
        if (tdb_chainlock_with_timeout(pdb->tdb, key, 5) == -1)
                goto out;
 
@@ -1562,9 +1916,10 @@ static BOOL remove_from_jobs_changed(int snum, uint32 jobid)
  Delete a print job - don't update queue.
 ****************************************************************************/
 
-static BOOL print_job_delete1(int snum, uint32 jobid)
+static bool print_job_delete1(int snum, uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       const char* sharename = lp_const_servicename(snum);
+       struct printjob *pjob = print_job_find(sharename, jobid);
        int result = 0;
        struct printif *current_printif = get_printer_fns( snum );
 
@@ -1579,7 +1934,9 @@ static BOOL print_job_delete1(int snum, uint32 jobid)
                return True;
 
        /* Hrm - we need to be able to cope with deleting a job before it
-          has reached the spooler. */
+          has reached the spooler.  Just mark it as LPQ_DELETING and 
+          let the print_queue_update() code rmeove the record */
+          
 
        if (pjob->sysjob == -1) {
                DEBUG(5, ("attempt to delete job %u not seen by lpr\n", (unsigned int)jobid));
@@ -1588,27 +1945,33 @@ static BOOL print_job_delete1(int snum, uint32 jobid)
        /* Set the tdb entry to be deleting. */
 
        pjob->status = LPQ_DELETING;
-       pjob_store(snum, jobid, pjob);
+       pjob_store(sharename, jobid, pjob);
 
-       if (pjob->spooled && pjob->sysjob != -1)
-               result = (*(current_printif->job_delete))(snum, pjob);
+       if (pjob->spooled && pjob->sysjob != -1) 
+       {
+               result = (*(current_printif->job_delete))(
+                       PRINTERNAME(snum),
+                       lp_lprmcommand(snum), 
+                       pjob);
 
-       /* Delete the tdb entry if the delete succeeded or the job hasn't
-          been spooled. */
+               /* Delete the tdb entry if the delete succeeded or the job hasn't
+                  been spooled. */
 
-       if (result == 0) {
-               const char *printername = lp_const_servicename(snum);
-               struct tdb_print_db *pdb = get_print_db_byname(printername);
-               int njobs = 1;
+               if (result == 0) {
+                       struct tdb_print_db *pdb = get_print_db_byname(sharename);
+                       int njobs = 1;
 
-               if (!pdb)
-                       return False;
-               pjob_delete(snum, jobid);
-               /* Ensure we keep a rough count of the number of total jobs... */
-               tdb_change_int32_atomic(pdb->tdb, "INFO/total_jobs", &njobs, -1);
-               release_print_db(pdb);
+                       if (!pdb)
+                               return False;
+                       pjob_delete(sharename, jobid);
+                       /* Ensure we keep a rough count of the number of total jobs... */
+                       tdb_change_int32_atomic(pdb->tdb, "INFO/total_jobs", &njobs, -1);
+                       release_print_db(pdb);
+               }
        }
 
+       remove_from_jobs_changed( sharename, jobid );
+
        return (result == 0);
 }
 
@@ -1616,39 +1979,39 @@ static BOOL print_job_delete1(int snum, uint32 jobid)
  Return true if the current user owns the print job.
 ****************************************************************************/
 
-static BOOL is_owner(struct current_user *user, int snum, uint32 jobid)
+static bool is_owner(struct auth_serversupplied_info *server_info,
+                    const char *servicename,
+                    uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
-       user_struct *vuser;
+       struct printjob *pjob = print_job_find(servicename, jobid);
 
-       if (!pjob || !user)
+       if (!pjob || !server_info)
                return False;
 
-       if ((vuser = get_valid_user_struct(user->vuid)) != NULL) {
-               return strequal(pjob->user, vuser->user.smb_name);
-       } else {
-               return strequal(pjob->user, uidtoname(user->uid));
-       }
+       return strequal(pjob->user, server_info->sanitized_username);
 }
 
 /****************************************************************************
  Delete a print job.
 ****************************************************************************/
 
-BOOL print_job_delete(struct current_user *user, int snum, uint32 jobid, WERROR *errcode)
+bool print_job_delete(struct auth_serversupplied_info *server_info, int snum,
+                     uint32 jobid, WERROR *errcode)
 {
-       BOOL    owner, deleted;
+       const char* sharename = lp_const_servicename( snum );
+       struct printjob *pjob;
+       bool    owner;
        char    *fname;
 
        *errcode = WERR_OK;
                
-       owner = is_owner(user, snum, jobid);
+       owner = is_owner(server_info, lp_const_servicename(snum), jobid);
        
        /* Check access against security descriptor or whether the user
           owns their job. */
 
        if (!owner && 
-           !print_access_check(user, snum, JOB_ACCESS_ADMINISTER)) {
+           !print_access_check(server_info, snum, JOB_ACCESS_ADMINISTER)) {
                DEBUG(3, ("delete denied by security descriptor\n"));
                *errcode = WERR_ACCESS_DENIED;
 
@@ -1656,7 +2019,8 @@ BOOL print_job_delete(struct current_user *user, int snum, uint32 jobid, WERROR
                sys_adminlog( LOG_ERR, 
                              "Permission denied-- user not allowed to delete, \
 pause, or resume print job. User name: %s. Printer name: %s.",
-                             uidtoname(user->uid), PRINTERNAME(snum) );
+                             uidtoname(server_info->utok.uid),
+                             PRINTERNAME(snum) );
                /* END_ADMIN_LOG */
 
                return False;
@@ -1669,7 +2033,7 @@ pause, or resume print job. User name: %s. Printer name: %s.",
         * spool file & return.
         */
         
-       if ( (fname = print_job_fname( snum, jobid )) != NULL )
+       if ( (fname = print_job_fname( sharename, jobid )) != NULL )
        {
                /* remove the spool file */
                DEBUG(10,("print_job_delete: Removing spool file [%s]\n", fname ));
@@ -1687,40 +2051,51 @@ pause, or resume print job. User name: %s. Printer name: %s.",
        /* force update the database and say the delete failed if the
            job still exists */
 
-       print_queue_update(snum);
+       print_queue_update(snum, True);
        
-       deleted = !print_job_exists(snum, jobid);
-       if ( !deleted )
+       pjob = print_job_find(sharename, jobid);
+       if ( pjob && (pjob->status != LPQ_DELETING) )
                *errcode = WERR_ACCESS_DENIED;
 
-       return deleted;
+       return (pjob == NULL );
 }
 
 /****************************************************************************
  Pause a job.
 ****************************************************************************/
 
-BOOL print_job_pause(struct current_user *user, int snum, uint32 jobid, WERROR *errcode)
+bool print_job_pause(struct auth_serversupplied_info *server_info, int snum,
+                    uint32 jobid, WERROR *errcode)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       const char* sharename = lp_const_servicename(snum);
+       struct printjob *pjob;
        int ret = -1;
        struct printif *current_printif = get_printer_fns( snum );
+
+       pjob = print_job_find(sharename, jobid);
        
-       if (!pjob || !user) 
+       if (!pjob || !server_info) {
+               DEBUG(10, ("print_job_pause: no pjob or user for jobid %u\n",
+                       (unsigned int)jobid ));
                return False;
+       }
 
-       if (!pjob->spooled || pjob->sysjob == -1) 
+       if (!pjob->spooled || pjob->sysjob == -1) {
+               DEBUG(10, ("print_job_pause: not spooled or bad sysjob = %d for jobid %u\n",
+                       (int)pjob->sysjob, (unsigned int)jobid ));
                return False;
+       }
 
-       if (!is_owner(user, snum, jobid) &&
-           !print_access_check(user, snum, JOB_ACCESS_ADMINISTER)) {
+       if (!is_owner(server_info, lp_const_servicename(snum), jobid) &&
+           !print_access_check(server_info, snum, JOB_ACCESS_ADMINISTER)) {
                DEBUG(3, ("pause denied by security descriptor\n"));
 
                /* BEGIN_ADMIN_LOG */
                sys_adminlog( LOG_ERR, 
                        "Permission denied-- user not allowed to delete, \
 pause, or resume print job. User name: %s. Printer name: %s.",
-                               uidtoname(user->uid), PRINTERNAME(snum) );
+                             uidtoname(server_info->utok.uid),
+                             PRINTERNAME(snum) );
                /* END_ADMIN_LOG */
 
                *errcode = WERR_ACCESS_DENIED;
@@ -1736,11 +2111,11 @@ pause, or resume print job. User name: %s. Printer name: %s.",
        }
 
        /* force update the database */
-       print_cache_flush(snum);
+       print_cache_flush(lp_const_servicename(snum));
 
        /* Send a printer notify message */
 
-       notify_job_status(snum, jobid, JOB_STATUS_PAUSED);
+       notify_job_status(sharename, jobid, JOB_STATUS_PAUSED);
 
        /* how do we tell if this succeeded? */
 
@@ -1751,20 +2126,30 @@ pause, or resume print job. User name: %s. Printer name: %s.",
  Resume a job.
 ****************************************************************************/
 
-BOOL print_job_resume(struct current_user *user, int snum, uint32 jobid, WERROR *errcode)
+bool print_job_resume(struct auth_serversupplied_info *server_info, int snum,
+                     uint32 jobid, WERROR *errcode)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       const char *sharename = lp_const_servicename(snum);
+       struct printjob *pjob;
        int ret;
        struct printif *current_printif = get_printer_fns( snum );
-       
-       if (!pjob || !user)
+
+       pjob = print_job_find(sharename, jobid);
+
+       if (!pjob || !server_info) {
+               DEBUG(10, ("print_job_resume: no pjob or user for jobid %u\n",
+                       (unsigned int)jobid ));
                return False;
+       }
 
-       if (!pjob->spooled || pjob->sysjob == -1)
+       if (!pjob->spooled || pjob->sysjob == -1) {
+               DEBUG(10, ("print_job_resume: not spooled or bad sysjob = %d for jobid %u\n",
+                       (int)pjob->sysjob, (unsigned int)jobid ));
                return False;
+       }
 
-       if (!is_owner(user, snum, jobid) &&
-           !print_access_check(user, snum, JOB_ACCESS_ADMINISTER)) {
+       if (!is_owner(server_info, lp_const_servicename(snum), jobid) &&
+           !print_access_check(server_info, snum, JOB_ACCESS_ADMINISTER)) {
                DEBUG(3, ("resume denied by security descriptor\n"));
                *errcode = WERR_ACCESS_DENIED;
 
@@ -1772,7 +2157,8 @@ BOOL print_job_resume(struct current_user *user, int snum, uint32 jobid, WERROR
                sys_adminlog( LOG_ERR, 
                         "Permission denied-- user not allowed to delete, \
 pause, or resume print job. User name: %s. Printer name: %s.",
-                       uidtoname(user->uid), PRINTERNAME(snum) );
+                             uidtoname(server_info->utok.uid),
+                             PRINTERNAME(snum) );
                /* END_ADMIN_LOG */
                return False;
        }
@@ -1785,11 +2171,11 @@ pause, or resume print job. User name: %s. Printer name: %s.",
        }
 
        /* force update the database */
-       print_cache_flush(snum);
+       print_cache_flush(lp_const_servicename(snum));
 
        /* Send a printer notify message */
 
-       notify_job_status(snum, jobid, JOB_STATUS_QUEUED);
+       notify_job_status(sharename, jobid, JOB_STATUS_QUEUED);
 
        return True;
 }
@@ -1798,10 +2184,13 @@ pause, or resume print job. User name: %s. Printer name: %s.",
  Write to a print file.
 ****************************************************************************/
 
-int print_job_write(int snum, uint32 jobid, const char *buf, int size)
+ssize_t print_job_write(int snum, uint32 jobid, const char *buf, SMB_OFF_T pos, size_t size)
 {
+       const char* sharename = lp_const_servicename(snum);
        int return_code;
-       struct printjob *pjob = print_job_find(snum, jobid);
+       struct printjob *pjob;
+
+       pjob = print_job_find(sharename, jobid);
 
        if (!pjob)
                return -1;
@@ -1809,74 +2198,36 @@ int print_job_write(int snum, uint32 jobid, const char *buf, int size)
        if (pjob->pid != sys_getpid())
                return -1;
 
-       return_code = write(pjob->fd, buf, size);
+       return_code = write_data_at_offset(pjob->fd, buf, size, pos);
+
        if (return_code>0) {
                pjob->size += size;
-               pjob_store(snum, jobid, pjob);
+               pjob_store(sharename, jobid, pjob);
        }
        return return_code;
 }
 
-/****************************************************************************
- Check if the print queue has been updated recently enough.
-****************************************************************************/
-
-static BOOL print_cache_expired(int snum)
-{
-       fstring key;
-       time_t last_qscan_time, time_now = time(NULL);
-       const char *printername = lp_const_servicename(snum);
-       struct tdb_print_db *pdb = get_print_db_byname(printername);
-
-       if (!pdb)
-               return False;
-
-       slprintf(key, sizeof(key), "CACHE/%s", printername);
-       last_qscan_time = (time_t)tdb_fetch_int32(pdb->tdb, key);
-
-       /*
-        * Invalidate the queue for 3 reasons.
-        * (1). last queue scan time == -1.
-        * (2). Current time - last queue scan time > allowed cache time.
-        * (3). last queue scan time > current time + MAX_CACHE_VALID_TIME (1 hour by default).
-        * This last test picks up machines for which the clock has been moved
-        * forward, an lpq scan done and then the clock moved back. Otherwise
-        * that last lpq scan would stay around for a loooong loooong time... :-). JRA.
-        */
-
-       if (last_qscan_time == ((time_t)-1) || (time_now - last_qscan_time) >= lp_lpqcachetime() ||
-                       last_qscan_time > (time_now + MAX_CACHE_VALID_TIME)) {
-               DEBUG(3, ("print cache expired for queue %s \
-(last_qscan_time = %d, time now = %d, qcachetime = %d)\n", printername,
-                       (int)last_qscan_time, (int)time_now, (int)lp_lpqcachetime() ));
-               release_print_db(pdb);
-               return True;
-       }
-       release_print_db(pdb);
-       return False;
-}
-
 /****************************************************************************
  Get the queue status - do not update if db is out of date.
 ****************************************************************************/
 
-static int get_queue_status(int snum, print_status_struct *status)
+static int get_queue_status(const char* sharename, print_status_struct *status)
 {
        fstring keystr;
-       TDB_DATA data, key;
-       const char *printername = lp_const_servicename(snum);
-       struct tdb_print_db *pdb = get_print_db_byname(printername);
+       TDB_DATA data;
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
        int len;
 
+       if (status) {
+               ZERO_STRUCTP(status);
+       }
+
        if (!pdb)
                return 0;
 
        if (status) {
-               ZERO_STRUCTP(status);
-               slprintf(keystr, sizeof(keystr)-1, "STATUS/%s", printername);
-               key.dptr = keystr;
-               key.dsize = strlen(keystr);
-               data = tdb_fetch(pdb->tdb, key);
+               fstr_sprintf(keystr, "STATUS/%s", sharename);
+               data = tdb_fetch(pdb->tdb, string_tdb_data(keystr));
                if (data.dptr) {
                        if (data.dsize == sizeof(print_status_struct))
                                /* this memcpy is ok since the status struct was 
@@ -1896,16 +2247,19 @@ static int get_queue_status(int snum, print_status_struct *status)
 
 int print_queue_length(int snum, print_status_struct *pstatus)
 {
+       const char* sharename = lp_const_servicename( snum );
        print_status_struct status;
        int len;
+
+       ZERO_STRUCT( status );
  
        /* make sure the database is up to date */
-       if (print_cache_expired(snum))
-               print_queue_update(snum);
+       if (print_cache_expired(lp_const_servicename(snum), True))
+               print_queue_update(snum, False);
  
        /* also fetch the queue status */
        memset(&status, 0, sizeof(status));
-       len = get_queue_status(snum, &status);
+       len = get_queue_status(sharename, &status);
 
        if (pstatus)
                *pstatus = status;
@@ -1917,7 +2271,7 @@ int print_queue_length(int snum, print_status_struct *pstatus)
  Allocate a jobid. Hold the lock for as short a time as possible.
 ***************************************************************************/
 
-static BOOL allocate_print_jobid(struct tdb_print_db *pdb, int snum, const char *printername, uint32 *pjobid)
+static bool allocate_print_jobid(struct tdb_print_db *pdb, int snum, const char *sharename, uint32 *pjobid)
 {
        int i;
        uint32 jobid;
@@ -1926,15 +2280,15 @@ static BOOL allocate_print_jobid(struct tdb_print_db *pdb, int snum, const char
 
        for (i = 0; i < 3; i++) {
                /* Lock the database - only wait 20 seconds. */
-               if (tdb_lock_bystring(pdb->tdb, "INFO/nextjob", 20) == -1) {
-                       DEBUG(0,("allocate_print_jobid: failed to lock printing database %s\n", printername ));
+               if (tdb_lock_bystring_with_timeout(pdb->tdb, "INFO/nextjob", 20) == -1) {
+                       DEBUG(0,("allocate_print_jobid: failed to lock printing database %s\n", sharename));
                        return False;
                }
 
                if (!tdb_fetch_uint32(pdb->tdb, "INFO/nextjob", &jobid)) {
                        if (tdb_error(pdb->tdb) != TDB_ERR_NOEXIST) {
                                DEBUG(0, ("allocate_print_jobid: failed to fetch INFO/nextjob for print queue %s\n",
-                                               printername ));
+                                       sharename));
                                return False;
                        }
                        jobid = 0;
@@ -1951,13 +2305,13 @@ static BOOL allocate_print_jobid(struct tdb_print_db *pdb, int snum, const char
                /* We've finished with the INFO/nextjob lock. */
                tdb_unlock_bystring(pdb->tdb, "INFO/nextjob");
                                
-               if (!print_job_exists(snum, jobid))
+               if (!print_job_exists(sharename, jobid))
                        break;
        }
 
        if (i > 2) {
                DEBUG(0, ("allocate_print_jobid: failed to allocate a print job for queue %s\n",
-                               printername ));
+                       sharename));
                /* Probably full... */
                errno = ENOSPC;
                return False;
@@ -1965,10 +2319,12 @@ static BOOL allocate_print_jobid(struct tdb_print_db *pdb, int snum, const char
 
        /* Store a dummy placeholder. */
        {
+               uint32_t tmp;
                TDB_DATA dum;
                dum.dptr = NULL;
                dum.dsize = 0;
-               if (tdb_store(pdb->tdb, print_key(jobid), dum, TDB_INSERT) == -1) {
+               if (tdb_store(pdb->tdb, print_key(jobid, &tmp), dum,
+                             TDB_INSERT) == -1) {
                        DEBUG(3, ("allocate_print_jobid: jobid (%d) failed to store placeholder.\n",
                                jobid ));
                        return False;
@@ -1983,34 +2339,33 @@ static BOOL allocate_print_jobid(struct tdb_print_db *pdb, int snum, const char
  Append a jobid to the 'jobs changed' list.
 ***************************************************************************/
 
-static BOOL add_to_jobs_changed(struct tdb_print_db *pdb, uint32 jobid)
+static bool add_to_jobs_changed(struct tdb_print_db *pdb, uint32 jobid)
 {
-       TDB_DATA data, key;
+       TDB_DATA data;
        uint32 store_jobid;
 
-       key.dptr = "INFO/jobs_changed";
-       key.dsize = strlen(key.dptr);
        SIVAL(&store_jobid, 0, jobid);
-       data.dptr = (char *)&store_jobid;
+       data.dptr = (uint8 *)&store_jobid;
        data.dsize = 4;
 
        DEBUG(10,("add_to_jobs_changed: Added jobid %u\n", (unsigned int)jobid ));
 
-       return (tdb_append(pdb->tdb, key, data) == 0);
+       return (tdb_append(pdb->tdb, string_tdb_data("INFO/jobs_changed"),
+                          data) == 0);
 }
 
 /***************************************************************************
  Start spooling a job - return the jobid.
 ***************************************************************************/
 
-uint32 print_job_start(struct current_user *user, int snum, char *jobname, NT_DEVICEMODE *nt_devmode )
+uint32 print_job_start(struct auth_serversupplied_info *server_info, int snum,
+                      char *jobname, NT_DEVICEMODE *nt_devmode )
 {
        uint32 jobid;
        char *path;
        struct printjob pjob;
-       user_struct *vuser;
-       const char *printername = lp_const_servicename(snum);
-       struct tdb_print_db *pdb = get_print_db_byname(printername);
+       const char *sharename = lp_const_servicename(snum);
+       struct tdb_print_db *pdb = get_print_db_byname(sharename);
        int njobs;
 
        errno = 0;
@@ -2018,13 +2373,13 @@ uint32 print_job_start(struct current_user *user, int snum, char *jobname, NT_DE
        if (!pdb)
                return (uint32)-1;
 
-       if (!print_access_check(user, snum, PRINTER_ACCESS_USE)) {
+       if (!print_access_check(server_info, snum, PRINTER_ACCESS_USE)) {
                DEBUG(3, ("print_job_start: job start denied by security descriptor\n"));
                release_print_db(pdb);
                return (uint32)-1;
        }
 
-       if (!print_time_access_check(snum)) {
+       if (!print_time_access_check(lp_servicename(snum))) {
                DEBUG(3, ("print_job_start: job start denied by time check\n"));
                release_print_db(pdb);
                return (uint32)-1;
@@ -2034,9 +2389,9 @@ uint32 print_job_start(struct current_user *user, int snum, char *jobname, NT_DE
 
        /* see if we have sufficient disk space */
        if (lp_minprintspace(snum)) {
-               SMB_BIG_UINT dspace, dsize;
+               uint64_t dspace, dsize;
                if (sys_fsusage(path, &dspace, &dsize) == 0 &&
-                   dspace < 2*(SMB_BIG_UINT)lp_minprintspace(snum)) {
+                   dspace < 2*(uint64_t)lp_minprintspace(snum)) {
                        DEBUG(3, ("print_job_start: disk space check failed.\n"));
                        release_print_db(pdb);
                        errno = ENOSPC;
@@ -2045,7 +2400,7 @@ uint32 print_job_start(struct current_user *user, int snum, char *jobname, NT_DE
        }
 
        /* for autoloaded printers, check that the printcap entry still exists */
-       if (lp_autoloaded(snum) && !pcap_printername_ok(lp_const_servicename(snum), NULL)) {
+       if (lp_autoloaded(snum) && !pcap_printername_ok(lp_const_servicename(snum))) {
                DEBUG(3, ("print_job_start: printer name %s check failed.\n", lp_const_servicename(snum) ));
                release_print_db(pdb);
                errno = ENOENT;
@@ -2055,16 +2410,16 @@ uint32 print_job_start(struct current_user *user, int snum, char *jobname, NT_DE
        /* Insure the maximum queue size is not violated */
        if ((njobs = print_queue_length(snum,NULL)) > lp_maxprintjobs(snum)) {
                DEBUG(3, ("print_job_start: Queue %s number of jobs (%d) larger than max printjobs per queue (%d).\n",
-                       printername, njobs, lp_maxprintjobs(snum) ));
+                       sharename, njobs, lp_maxprintjobs(snum) ));
                release_print_db(pdb);
                errno = ENOSPC;
                return (uint32)-1;
        }
 
        DEBUG(10,("print_job_start: Queue %s number of jobs (%d), max printjobs = %d\n",
-                       printername, njobs, lp_maxprintjobs(snum) ));
+               sharename, njobs, lp_maxprintjobs(snum) ));
 
-       if (!allocate_print_jobid(pdb, snum, printername, &jobid))
+       if (!allocate_print_jobid(pdb, snum, sharename, &jobid))
                goto fail;
 
        /* create the database entry */
@@ -2083,11 +2438,14 @@ uint32 print_job_start(struct current_user *user, int snum, char *jobname, NT_DE
        
        fstrcpy(pjob.jobname, jobname);
 
-       if ((vuser = get_valid_user_struct(user->vuid)) != NULL) {
-               fstrcpy(pjob.user, vuser->user.smb_name);
-       } else {
-               fstrcpy(pjob.user, uidtoname(user->uid));
-       }
+       fstrcpy(pjob.user, lp_printjob_username(snum));
+       standard_sub_advanced(sharename, server_info->sanitized_username,
+                             path, server_info->utok.gid, 
+                             server_info->sanitized_username,
+                             pdb_get_domain(server_info->sam_account),
+                             pjob.user, sizeof(pjob.user)-1);
+       /* ensure NULL termination */
+       pjob.user[sizeof(pjob.user)-1] = '\0';
 
        fstrcpy(pjob.queuename, lp_const_servicename(snum));
 
@@ -2109,7 +2467,7 @@ to open spool file %s.\n", pjob.filename));
                goto fail;
        }
 
-       pjob_store(snum, jobid, &pjob);
+       pjob_store(sharename, jobid, &pjob);
 
        /* Update the 'jobs changed' entry used by print_queue_status. */
        add_to_jobs_changed(pdb, jobid);
@@ -2123,7 +2481,7 @@ to open spool file %s.\n", pjob.filename));
 
  fail:
        if (jobid != -1)
-               pjob_delete(snum, jobid);
+               pjob_delete(sharename, jobid);
 
        release_print_db(pdb);
 
@@ -2137,7 +2495,10 @@ to open spool file %s.\n", pjob.filename));
 
 void print_job_endpage(int snum, uint32 jobid)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       const char* sharename = lp_const_servicename(snum);
+       struct printjob *pjob;
+
+       pjob = print_job_find(sharename, jobid);
        if (!pjob)
                return;
        /* don't allow another process to get this info - it is meaningless */
@@ -2145,7 +2506,7 @@ void print_job_endpage(int snum, uint32 jobid)
                return;
 
        pjob->page_count++;
-       pjob_store(snum, jobid, pjob);
+       pjob_store(sharename, jobid, pjob);
 }
 
 /****************************************************************************
@@ -2154,20 +2515,24 @@ void print_job_endpage(int snum, uint32 jobid)
  error.
 ****************************************************************************/
 
-BOOL print_job_end(int snum, uint32 jobid, BOOL normal_close)
+bool print_job_end(int snum, uint32 jobid, enum file_close_type close_type)
 {
-       struct printjob *pjob = print_job_find(snum, jobid);
+       const char* sharename = lp_const_servicename(snum);
+       struct printjob *pjob;
        int ret;
        SMB_STRUCT_STAT sbuf;
        struct printif *current_printif = get_printer_fns( snum );
 
+       pjob = print_job_find(sharename, jobid);
+
        if (!pjob)
                return False;
 
        if (pjob->spooled || pjob->pid != sys_getpid())
                return False;
 
-       if (normal_close && (sys_fstat(pjob->fd, &sbuf) == 0)) {
+       if ((close_type == NORMAL_CLOSE || close_type == SHUTDOWN_CLOSE) &&
+                               (sys_fstat(pjob->fd, &sbuf) == 0)) {
                pjob->size = sbuf.st_size;
                close(pjob->fd);
                pjob->fd = -1;
@@ -2191,7 +2556,7 @@ BOOL print_job_end(int snum, uint32 jobid, BOOL normal_close)
                DEBUG(5,("print_job_end: canceling spool of %s (%s)\n",
                        pjob->filename, pjob->size ? "deleted" : "zero length" ));
                unlink(pjob->filename);
-               pjob_delete(snum, jobid);
+               pjob_delete(sharename, jobid);
                return True;
        }
 
@@ -2202,24 +2567,24 @@ BOOL print_job_end(int snum, uint32 jobid, BOOL normal_close)
        if (ret)
                goto fail;
 
-       /* The print job has been sucessfully handed over to the back-end */
+       /* The print job has been successfully handed over to the back-end */
        
        pjob->spooled = True;
        pjob->status = LPQ_QUEUED;
-       pjob_store(snum, jobid, pjob);
+       pjob_store(sharename, jobid, pjob);
        
        /* make sure the database is up to date */
-       if (print_cache_expired(snum))
-               print_queue_update(snum);
+       if (print_cache_expired(lp_const_servicename(snum), True))
+               print_queue_update(snum, False);
        
        return True;
 
 fail:
 
-       /* The print job was not succesfully started. Cleanup */
+       /* The print job was not successfully started. Cleanup */
        /* Still need to add proper error return propagation! 010122:JRR */
        unlink(pjob->filename);
-       pjob_delete(snum, jobid);
+       pjob_delete(sharename, jobid);
        return False;
 }
 
@@ -2227,9 +2592,9 @@ fail:
  Get a snapshot of jobs in the system without traversing.
 ****************************************************************************/
 
-static BOOL get_stored_queue_info(struct tdb_print_db *pdb, int snum, int *pcount, print_queue_struct **ppqueue)
+static bool get_stored_queue_info(struct tdb_print_db *pdb, int snum, int *pcount, print_queue_struct **ppqueue)
 {
-       TDB_DATA data, key, cgdata;
+       TDB_DATA data, cgdata;
        print_queue_struct *queue = NULL;
        uint32 qcount = 0;
        uint32 extra_count = 0;
@@ -2237,31 +2602,27 @@ static BOOL get_stored_queue_info(struct tdb_print_db *pdb, int snum, int *pcoun
        size_t len = 0;
        uint32 i;
        int max_reported_jobs = lp_max_reported_jobs(snum);
-       BOOL ret = False;
+       bool ret = False;
+       const char* sharename = lp_servicename(snum);
 
        /* make sure the database is up to date */
-       if (print_cache_expired(snum))
-               print_queue_update(snum);
+       if (print_cache_expired(lp_const_servicename(snum), True))
+               print_queue_update(snum, False);
  
        *pcount = 0;
        *ppqueue = NULL;
 
        ZERO_STRUCT(data);
        ZERO_STRUCT(cgdata);
-       key.dptr = "INFO/linear_queue_array";
-       key.dsize = strlen(key.dptr);
 
        /* Get the stored queue data. */
-       data = tdb_fetch(pdb->tdb, key);
+       data = tdb_fetch(pdb->tdb, string_tdb_data("INFO/linear_queue_array"));
        
        if (data.dptr && data.dsize >= sizeof(qcount))
                len += tdb_unpack(data.dptr + len, data.dsize - len, "d", &qcount);
                
        /* Get the changed jobs list. */
-       key.dptr = "INFO/jobs_changed";
-       key.dsize = strlen(key.dptr);
-
-       cgdata = tdb_fetch(pdb->tdb, key);
+       cgdata = tdb_fetch(pdb->tdb, string_tdb_data("INFO/jobs_changed"));
        if (cgdata.dptr != NULL && (cgdata.dsize % 4 == 0))
                extra_count = cgdata.dsize/4;
 
@@ -2271,7 +2632,7 @@ static BOOL get_stored_queue_info(struct tdb_print_db *pdb, int snum, int *pcoun
        if (qcount == 0 && extra_count == 0)
                goto out;
 
-       if ((queue = (print_queue_struct *)malloc(sizeof(print_queue_struct)*(qcount + extra_count))) == NULL)
+       if ((queue = SMB_MALLOC_ARRAY(print_queue_struct, qcount + extra_count)) == NULL)
                goto out;
 
        /* Retrieve the linearised queue data. */
@@ -2304,10 +2665,10 @@ static BOOL get_stored_queue_info(struct tdb_print_db *pdb, int snum, int *pcoun
 
                jobid = IVAL(cgdata.dptr, i*4);
                DEBUG(5,("get_stored_queue_info: changed job = %u\n", (unsigned int)jobid));
-               pjob = print_job_find(snum, jobid);
+               pjob = print_job_find(lp_const_servicename(snum), jobid);
                if (!pjob) {
                        DEBUG(5,("get_stored_queue_info: failed to find changed job = %u\n", (unsigned int)jobid));
-                       remove_from_jobs_changed(snum, jobid);
+                       remove_from_jobs_changed(sharename, jobid);
                        continue;
                }
 
@@ -2355,22 +2716,22 @@ int print_queue_status(int snum,
 {
        fstring keystr;
        TDB_DATA data, key;
-       const char *printername;
+       const char *sharename;
        struct tdb_print_db *pdb;
        int count = 0;
 
        /* make sure the database is up to date */
 
-       if (print_cache_expired(snum))
-               print_queue_update(snum);
+       if (print_cache_expired(lp_const_servicename(snum), True))
+               print_queue_update(snum, False);
 
        /* return if we are done */
        if ( !ppqueue || !status )
                return 0;
 
        *ppqueue = NULL;
-       printername = lp_const_servicename(snum);
-       pdb = get_print_db_byname(printername);
+       sharename = lp_const_servicename(snum);
+       pdb = get_print_db_byname(sharename);
 
        if (!pdb)
                return 0;
@@ -2381,9 +2742,9 @@ int print_queue_status(int snum,
         */
 
        ZERO_STRUCTP(status);
-       slprintf(keystr, sizeof(keystr)-1, "STATUS/%s", printername);
-       key.dptr = keystr;
-       key.dsize = strlen(keystr);
+       slprintf(keystr, sizeof(keystr)-1, "STATUS/%s", sharename);
+       key = string_tdb_data(keystr);
+
        data = tdb_fetch(pdb->tdb, key);
        if (data.dptr) {
                if (data.dsize == sizeof(*status)) {
@@ -2412,25 +2773,32 @@ int print_queue_status(int snum,
  Pause a queue.
 ****************************************************************************/
 
-BOOL print_queue_pause(struct current_user *user, int snum, WERROR *errcode)
+bool print_queue_pause(struct auth_serversupplied_info *server_info, int snum,
+                      WERROR *errcode)
 {
        int ret;
        struct printif *current_printif = get_printer_fns( snum );
        
-       if (!print_access_check(user, snum, PRINTER_ACCESS_ADMINISTER)) {
+       if (!print_access_check(server_info, snum,
+                               PRINTER_ACCESS_ADMINISTER)) {
                *errcode = WERR_ACCESS_DENIED;
                return False;
        }
+       
 
+       become_root();
+               
        ret = (*(current_printif->queue_pause))(snum);
 
+       unbecome_root();
+               
        if (ret != 0) {
                *errcode = WERR_INVALID_PARAM;
                return False;
        }
 
        /* force update the database */
-       print_cache_flush(snum);
+       print_cache_flush(lp_const_servicename(snum));
 
        /* Send a printer notify message */
 
@@ -2443,26 +2811,32 @@ BOOL print_queue_pause(struct current_user *user, int snum, WERROR *errcode)
  Resume a queue.
 ****************************************************************************/
 
-BOOL print_queue_resume(struct current_user *user, int snum, WERROR *errcode)
+bool print_queue_resume(struct auth_serversupplied_info *server_info, int snum,
+                       WERROR *errcode)
 {
        int ret;
        struct printif *current_printif = get_printer_fns( snum );
 
-       if (!print_access_check(user, snum, PRINTER_ACCESS_ADMINISTER)) {
+       if (!print_access_check(server_info, snum,
+                               PRINTER_ACCESS_ADMINISTER)) {
                *errcode = WERR_ACCESS_DENIED;
                return False;
        }
-
+       
+       become_root();
+               
        ret = (*(current_printif->queue_resume))(snum);
 
+       unbecome_root();
+               
        if (ret != 0) {
                *errcode = WERR_INVALID_PARAM;
                return False;
        }
 
        /* make sure the database is up to date */
-       if (print_cache_expired(snum))
-               print_queue_update(snum);
+       if (print_cache_expired(lp_const_servicename(snum), True))
+               print_queue_update(snum, True);
 
        /* Send a printer notify message */
 
@@ -2475,26 +2849,38 @@ BOOL print_queue_resume(struct current_user *user, int snum, WERROR *errcode)
  Purge a queue - implemented by deleting all jobs that we can delete.
 ****************************************************************************/
 
-BOOL print_queue_purge(struct current_user *user, int snum, WERROR *errcode)
+bool print_queue_purge(struct auth_serversupplied_info *server_info, int snum,
+                      WERROR *errcode)
 {
        print_queue_struct *queue;
        print_status_struct status;
        int njobs, i;
-       BOOL can_job_admin;
+       bool can_job_admin;
 
        /* Force and update so the count is accurate (i.e. not a cached count) */
-       print_queue_update(snum);
+       print_queue_update(snum, True);
        
-       can_job_admin = print_access_check(user, snum, JOB_ACCESS_ADMINISTER);
+       can_job_admin = print_access_check(server_info, snum,
+                                          JOB_ACCESS_ADMINISTER);
        njobs = print_queue_status(snum, &queue, &status);
+       
+       if ( can_job_admin )
+               become_root();
 
        for (i=0;i<njobs;i++) {
-               BOOL owner = is_owner(user, snum, queue[i].job);
+               bool owner = is_owner(server_info, lp_const_servicename(snum),
+                                     queue[i].job);
 
                if (owner || can_job_admin) {
                        print_job_delete1(snum, queue[i].job);
                }
        }
+       
+       if ( can_job_admin )
+               unbecome_root();
+
+       /* update the cache */
+       print_queue_update( snum, True );
 
        SAFE_FREE(queue);