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/*
* Maintain rap vs spoolss jobids
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*
the printing backend revolves around a tdb database that stores the
SMB view of the print queue
The key for this database is a jobid - a internally generated number that
uniquely identifies a print job
reading the print queue involves two steps:
- possibly running lpq and updating the internal database from that
- reading entries from the database
jobids are assigned when a job starts spooling.
*/
#include "rap_jobid.h"
#include <tdb.h>
#include "source3/include/util_tdb.h"
#include "lib/util/string_wrappers.h"
static TDB_CONTEXT *rap_tdb;
static uint16_t next_rap_jobid;
struct rap_jobid_key {
fstring sharename;
uint32_t jobid;
};
/***************************************************************************
Nightmare. LANMAN jobid's are 16 bit numbers..... We must map them to 32
bit RPC jobids.... JRA.
***************************************************************************/
uint16_t pjobid_to_rap(const char* sharename, uint32_t jobid)
{
uint16_t rap_jobid;
TDB_DATA data, key;
struct rap_jobid_key jinfo;
uint8_t buf[2];
DEBUG(10,("pjobid_to_rap: called.\n"));
if (!rap_tdb) {
/* Create the in-memory tdb. */
rap_tdb = tdb_open_log(NULL, 0, TDB_INTERNAL, (O_RDWR|O_CREAT), 0644);
if (!rap_tdb)
return 0;
}
ZERO_STRUCT( jinfo );
fstrcpy( jinfo.sharename, sharename );
jinfo.jobid = jobid;
key.dptr = (uint8_t *)&jinfo;
key.dsize = sizeof(jinfo);
data = tdb_fetch(rap_tdb, key);
if (data.dptr && data.dsize == sizeof(uint16_t)) {
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));
return rap_jobid;
}
SAFE_FREE(data.dptr);
/* Not found - create and store mapping. */
rap_jobid = ++next_rap_jobid;
if (rap_jobid == 0)
rap_jobid = ++next_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));
return rap_jobid;
}
bool rap_to_pjobid(uint16_t rap_jobid, fstring sharename, uint32_t *pjobid)
{
TDB_DATA data, key;
uint8_t buf[2];
DEBUG(10,("rap_to_pjobid called.\n"));
if (!rap_tdb)
return False;
SSVAL(buf,0,rap_jobid);
key.dptr = buf;
key.dsize = sizeof(rap_jobid);
data = tdb_fetch(rap_tdb, key);
if ( data.dptr && data.dsize == sizeof(struct rap_jobid_key) )
{
struct rap_jobid_key *jinfo = (struct rap_jobid_key*)data.dptr;
if (sharename != NULL) {
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));
SAFE_FREE(data.dptr);
return True;
}
DEBUG(10,("rap_to_pjobid: Failed to lookup RAP jobid %u\n",
(unsigned int)rap_jobid));
SAFE_FREE(data.dptr);
return False;
}
void rap_jobid_delete(const char* sharename, uint32_t jobid)
{
TDB_DATA key, data;
uint16_t rap_jobid;
struct rap_jobid_key jinfo;
uint8_t buf[2];
DEBUG(10,("rap_jobid_delete: called.\n"));
if (!rap_tdb)
return;
ZERO_STRUCT( jinfo );
fstrcpy( jinfo.sharename, sharename );
jinfo.jobid = jobid;
key.dptr = (uint8_t *)&jinfo;
key.dsize = sizeof(jinfo);
data = tdb_fetch(rap_tdb, key);
if (!data.dptr || (data.dsize != sizeof(uint16_t))) {
DEBUG(10,("rap_jobid_delete: cannot find jobid %u\n",
(unsigned int)jobid ));
SAFE_FREE(data.dptr);
return;
}
DEBUG(10,("rap_jobid_delete: deleting jobid %u\n",
(unsigned int)jobid ));
rap_jobid = SVAL(data.dptr, 0);
SAFE_FREE(data.dptr);
SSVAL(buf,0,rap_jobid);
data.dptr = buf;
data.dsize = sizeof(rap_jobid);
tdb_delete(rap_tdb, key);
tdb_delete(rap_tdb, data);
}
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