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-rw-r--r--source3/printing/notify.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/source3/printing/notify.c b/source3/printing/notify.c
index a4111831d9..f55dbff47e 100644
--- a/source3/printing/notify.c
+++ b/source3/printing/notify.c
@@ -31,6 +31,18 @@ static struct notify_queue {
size_t buflen;
} *notify_queue_head = NULL;
+/****************************************************************************
+ Turn a queue name into a snum.
+****************************************************************************/
+
+int print_queue_snum(const char *qname)
+{
+ int snum = lp_servicenumber(qname);
+ if (snum == -1 || !lp_print_ok(snum))
+ return -1;
+ return snum;
+}
+
/*******************************************************************
Used to decide if we need a short select timeout.
*******************************************************************/
@@ -362,3 +374,78 @@ void notify_printer_location(int snum, char *location)
printer_name, PRINTER_NOTIFY_TYPE, PRINTER_NOTIFY_LOCATION,
snum, strlen(location) + 1, location);
}
+
+void notify_printer_byname( char *printername, uint32 change, char *value )
+{
+ int snum = print_queue_snum(printername);
+ int type = PRINTER_NOTIFY_TYPE;
+
+ if ( snum == -1 )
+ return;
+
+ send_notify_field_buffer( printername, type, change, snum, strlen(value), value );
+}
+
+
+/****************************************************************************
+ Return a malloced list of pid_t's that are interested in getting update
+ messages on this print queue. Used in printing/notify to send the messages.
+****************************************************************************/
+
+BOOL print_notify_pid_list(const char *printername, TALLOC_CTX *mem_ctx, size_t *p_num_pids, pid_t **pp_pid_list)
+{
+ struct tdb_print_db *pdb = NULL;
+ TDB_CONTEXT *tdb = NULL;
+ TDB_DATA data;
+ BOOL ret = True;
+ size_t i, num_pids, offset;
+ pid_t *pid_list;
+
+ *p_num_pids = 0;
+ *pp_pid_list = NULL;
+
+ pdb = get_print_db_byname(printername);
+ if (!pdb)
+ return False;
+ tdb = pdb->tdb;
+
+ if (tdb_read_lock_bystring(tdb, NOTIFY_PID_LIST_KEY, 10) == -1) {
+ DEBUG(0,("print_notify_pid_list: Failed to lock printer %s database\n",
+ printername));
+ if (pdb)
+ release_print_db(pdb);
+ return False;
+ }
+
+ data = get_printer_notify_pid_list( tdb, printername, True );
+
+ if (!data.dptr) {
+ ret = True;
+ goto done;
+ }
+
+ num_pids = data.dsize / 8;
+
+ if ((pid_list = (pid_t *)talloc(mem_ctx, sizeof(pid_t) * num_pids)) == NULL) {
+ ret = False;
+ goto done;
+ }
+
+ for( i = 0, offset = 0; offset < data.dsize; offset += 8, i++)
+ pid_list[i] = (pid_t)IVAL(data.dptr, offset);
+
+ *pp_pid_list = pid_list;
+ *p_num_pids = num_pids;
+
+ ret = True;
+
+ done:
+
+ tdb_read_unlock_bystring(tdb, NOTIFY_PID_LIST_KEY);
+ if (pdb)
+ release_print_db(pdb);
+ SAFE_FREE(data.dptr);
+ return ret;
+}
+
+