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lpd_rcvjob.c
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lpd_rcvjob.c
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/***************************************************************************
* LPRng - An Extended Print Spooler System
*
* Copyright 1988-2003, Patrick Powell, San Diego, CA
* papowell@lprng.com
* See LICENSE for conditions of use.
*
***************************************************************************/
#include "lp.h"
#include "child.h"
#include "errorcodes.h"
#include "fileopen.h"
#include "gethostinfo.h"
#include "getopt.h"
#include "getqueue.h"
#include "linksupport.h"
#include "lockfile.h"
#include "permission.h"
#include "proctitle.h"
#include "lpd_remove.h"
#include "lpd_rcvjob.h"
#include "lpd_jobs.h"
/**** ENDINCLUDE ****/
static int Read_one_line( int timeout, int fd, char *buffer, int maxlen );
static int Get_route( struct job *job, char *error, int errlen );
static int Do_incoming_control_filter( struct job *job, char *error, int errlen );
static void Generate_control_file( struct job *job );
static int Find_non_colliding_job_number( struct job *job );
/***************************************************************************
* Commentary:
* Patrick Powell Mon Apr 17 05:43:48 PDT 1995
*
* The protocol used to send a job to a remote host consists of the
* following:
*
* Client Server
* \2printername\n - receive a job
* \0 (ack)
* \2count controlfilename\n
* <count bytes>
* \0
* \0
* \3count datafilename\n
* <count bytes>
* \0
* \0
* \3count datafilename\n
* <count bytes>
* \0
* \0
* <close connection>
*
* 1. Read the control file from the other end.
* 2. Check to see if the printer exists, and if has a printcap entry
* 3. If it does, check the permissions for the user.
* 4. Read the job to the queue.
*
* Control file processing
* 1. The control file at this end might exist already, and be in use.
* If this is the case, we will try and allocate another control
* file name if the option is allowed.
* 2. After we lock the control file, we will then try and read the
* data files. Again, there might be a collision. If this is
* the case, then we will again try to generate a new number.
*
* The control file is first read into a file and then read into memory,
* where it is parsed.
*
* Duplicate Control/Data files:
* When copying jobs over, you might get to a point where you
* discover that a control and/or data file already exists.
*
* if file already exists:
* 1. if the existing file length is 0, then you can clobber the file.
* This is reasonable given file locking is working
* and games are not being played with NFS file systems.
* Most likely you have found an abandonded file.
* 2. If you have the control file and it is locked,
* then you might as well clobber the data files
* as they are probably left over from another job.
* If you do not have the control file, then you give up
* 3. If the first file file is the control file,
* and you cannot lock it or it is locked and has a non-zero length,
* then you should rename the file and try again.
* rename the data files/control files
* This can be done if the first file is a control file
* and you cannot lock it, or you lock it and it is
* non-zero in length.
*
* Job Size:
* when the total received job size exceeds limits, then abort job
* when the available file space falls below limit, then abort job
*
***************************************************************************/
int Receive_job( int *sock, char *input )
{
char line[SMALLBUFFER]; /* line buffer for input */
char error[SMALLBUFFER]; /* line buffer for input */
char buffer[SMALLBUFFER]; /* line buffer for input */
int errlen = sizeof(error);
char *tempfile; /* name of temp file */
double file_len; /* length of file */
double read_len; /* amount to read from sock */
double jobsize = 0; /* size of job */
int ack = 0; /* ack to send */
int status = 0; /* status of the last command */
double len; /* length of last read */
char *s, *filename; /* name of control or data file */
int temp_fd = -1; /* used for file opening and locking */
int filetype; /* type of file - control or data */
int fd; /* for log file */
int job_in_progress = 0; /* job in progress */
int db, dbf, rlen;
int fifo_fd = -1; /* fifo lock file */
struct line_list files, info, l;
struct job job;
struct stat statb;
int discarding_large_job = 0;
Init_line_list(&l);
Init_line_list(&files);
Init_line_list(&info);
Init_job(&job);
Name = "RECV";
if( input && *input ) ++input;
Clean_meta(input);
Split(&info,input,Whitespace,0,0,0,0,0,0);
DEBUGFC(DRECV1)Dump_line_list("Receive_job: input", &info );
if( info.count != 1 ){
plp_snprintf( error, errlen, _("bad command line") );
goto error;
}
if( Is_clean_name( info.list[0] ) ){
plp_snprintf( error, errlen, _("bad printer name") );
goto error;
}
setproctitle( "lpd RECV '%s'", info.list[0] );
if( Setup_printer( info.list[0], error, errlen, 0 ) ){
if( error[0] == 0 ){
plp_snprintf( error, errlen, _("%s: cannot set up print queue"), Printer_DYN );
}
goto error;
}
db = Debug;
dbf = DbgFlag;
s = Find_str_value(&Spool_control,DEBUG);
if(!s) s = New_debug_DYN;
Parse_debug( s, 0 );
if( !(DRECVMASK & DbgFlag) ){
Debug = db;
DbgFlag = dbf;
} else {
int i, j;
i = Debug;
j = DbgFlag;
Debug = db;
DbgFlag = dbf;
if( Log_file_DYN ){
fd = Checkwrite( Log_file_DYN, &statb,0,0,0);
if( fd > 0 && fd != 2 ){
dup2(fd,2);
close(fd);
}
}
Debug = i;
DbgFlag = j;
}
DEBUGF(DRECV1)("Receive_job: spooling_disabled %d",
Sp_disabled(&Spool_control) );
if( Sp_disabled(&Spool_control) ){
plp_snprintf( error, errlen,
_("%s: spooling disabled"), Printer_DYN );
ack = ACK_RETRY; /* retry */
goto error;
}
/* send an ACK */
DEBUGF(DRECV1)("Receive_job: sending 0 ACK for job transfer request" );
status = Link_send( ShortRemote_FQDN, sock, Send_job_rw_timeout_DYN, "", 1, 0 );
if( status ){
plp_snprintf( error, errlen,
_("%s: Receive_job: sending ACK 0 failed"), Printer_DYN );
goto error;
}
/* fifo order enforcement */
if( Fifo_DYN ){
char * path = Make_pathname( Spool_dir_DYN, Fifo_lock_file_DYN );
path = safestrdup3( path,"." , RemoteHost_IP.fqdn, __FILE__,__LINE__ );
DEBUGF(DRECV1)( "Receive_job: checking fifo_lock file '%s'", path );
fifo_fd = Checkwrite( path, &statb, O_RDWR, 1, 0 );
if( fifo_fd < 0 ){
Errorcode = JABORT;
logerr_die(LOG_ERR, _("Receive_job: cannot open lockfile '%s'"),
path );
}
if( Do_lock( fifo_fd, 1 ) < 0 ){
Errorcode = JABORT;
logerr_die(LOG_ERR, _("Receive_job: cannot lock lockfile '%s'"),
path );
}
if(path) free(path); path = 0;
}
while( status == 0 ){
DEBUGF(DRECV1)("Receive_job: from %s- getting file transfer line", FQDNRemote_FQDN );
rlen = sizeof(line)-1;
line[0] = 0;
status = Link_line_read( ShortRemote_FQDN, sock, Send_job_rw_timeout_DYN, line, &rlen );
DEBUGF(DRECV1)( "Receive_job: read from %s- status %d read %d bytes '%s'",
FQDNRemote_FQDN, status, rlen, line );
if( rlen == 0 || status ){
DEBUGF(DRECV1)( "Receive_job: ending reading from remote" );
/* treat like normal closing of connection */
line[0] = 0;
status = 0;
break;
}
filetype = line[0];
Clean_meta(line+1);
/* make sure we have a data file transfer */
if( filetype != DATA_FILE && filetype != CONTROL_FILE ){
/* we may have another type of command */
status = 0;
break;
}
/* make sure we have length and filename */
filename = 0;
file_len = strtod(line+1,&filename);
if ((line+1) == filename){
/* Recover from Apple Desktop Printing stupidity.
It occasionally resends the queue selection cmd.
Darian Davis DD 03JUL2000 */
status = 0;
logmsg(LOG_ERR, _("Recovering from incorrect job submission"));
continue;
}
if( filename ){
while( isspace(cval(filename)) ) ++filename;
Clean_meta(filename);
s = filename;
while( (s = strpbrk(s," \t")) ) *s++ = '_';
}
if( file_len < 0
|| filename == 0 || *filename == 0
|| (file_len == 0 && filetype != DATA_FILE) ){
ack = ACK_STOP_Q;
plp_snprintf( error, errlen,
_("%s: Receive_job - bad control line '%s', len %0.0f, name '%s'"),
Printer_DYN, line, file_len, filename );
goto error;
}
/************************************************
* check for job size and available space
* This is done here so that we can neatly clean up
* if we need to. Note we do this after we truncate...
************************************************/
jobsize += file_len;
read_len = file_len;
DEBUGF(DRECV4)("Receive_job: receiving '%s' jobsize %0.0f, file_len %0.0f, read_len %0.0f",
filename, jobsize, file_len, read_len );
if( read_len == 0 ) read_len = Max_job_size_DYN*1024;
if( Max_job_size_DYN > 0 && (jobsize/1024) > (0.0+Max_job_size_DYN) ){
if( Discard_large_jobs_DYN ){
discarding_large_job = 1;
} else {
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
ack = ACK_RETRY;
goto error;
}
} else if( !Check_space( read_len, Minfree_DYN, Spool_dir_DYN ) ){
plp_snprintf( error, errlen,
_("%s: insufficient file space"), Printer_DYN );
ack = ACK_RETRY;
goto error;
}
/*
* we are ready to read the file; send 0 ack saying so
*/
DEBUGF(DRECV4)("Receive_job: next, receiving '%s' jobsize %0.0f, file_len %0.0f, read_len %0.0f",
filename, jobsize, file_len, read_len );
DEBUGF(DRECV2)("Receive_job: sending 0 ACK to transfer '%s', length %0.0f", filename, file_len );
status = Link_send( ShortRemote_FQDN, sock, Send_job_rw_timeout_DYN, "", 1, 0 );
if( status ){
plp_snprintf( error, errlen,
_("%s: sending ACK 0 for '%s' failed"), Printer_DYN, filename );
ack = ACK_RETRY;
goto error;
}
if( discarding_large_job ){
temp_fd = Checkwrite( "/dev/null", &statb,0,0,0);
tempfile = 0;
} else {
temp_fd = Make_temp_fd(&tempfile);
}
/*
* If the file length is 0, then we transfer only as much as we have
* space available. Note that this will be the last file in a job
*/
DEBUGF(DRECV4)("Receive_job: receiving '%s' read_len %0.0f bytes, file_len %0.0f",
filename, read_len, file_len );
len = read_len;
status = Link_file_read( ShortRemote_FQDN, sock,
Send_job_rw_timeout_DYN, 0, temp_fd, &read_len, &ack );
DEBUGF(DRECV4)("Receive_job: status %d, read_len %0.0f, file_len %0.0f",
status, read_len, file_len );
/* close the file */
close(temp_fd);
temp_fd = -1;
if( status
|| (file_len == 0 && read_len == 0)
|| (file_len != 0 && file_len != read_len) ){
plp_snprintf( error, errlen,
_("%s: transfer of '%s' from '%s' failed"), Printer_DYN,
filename, ShortRemote_FQDN );
ack = ACK_RETRY;
goto error;
}
/*
* we process the control file and make sure we can print it
*/
if( filetype == CONTROL_FILE ){
DEBUGF(DRECV2)("Receive_job: receiving new control file, old job.info.count %d, old files.count %d",
job.info.count, files.count );
if( job_in_progress ){
/* we received another control file, finish this job up */
if( !discarding_large_job ){
if( Check_for_missing_files(&job, &files, error, errlen, 0, -1) ){
goto error;
}
} else {
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
Set_str_value(&job.info,ERROR,error);
Set_nz_flag_value(&job.info,ERROR_TIME,time(0));
Set_str_value(&job.info,INCOMING_TIME,0);
Set_str_value(&job.info,INCOMING_PID,0);
error[0] = 0;
if( (status = Set_job_ticket_file( &job, 0, -1 )) ){
plp_snprintf( error,errlen,
_("Error setting up job ticket file - %s"),
Errormsg( errno ) );
goto error;
}
if( Lpq_status_file_DYN ){ unlink(Lpq_status_file_DYN); }
}
Free_line_list(&files);
discarding_large_job = 0;
jobsize = 0;
job_in_progress = 0;
}
Free_job(&job);
Set_str_value(&job.info,OPENNAME,tempfile);
{
int job_ticket_fd = Setup_temporary_job_ticket_file( &job, filename, 1, 0, error, errlen );
if( job_ticket_fd < 0 ){
goto error;
}
if( files.count ){
/* we have datafiles, FOLLOWED by a control file */
if( !discarding_large_job ){
if( Check_for_missing_files(&job, &files, error, errlen, 0, job_ticket_fd) ){
goto error;
}
} else {
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
Set_str_value(&job.info,ERROR,error);
Set_nz_flag_value(&job.info,ERROR_TIME,time(0));
Set_str_value(&job.info,INCOMING_TIME,0);
Set_str_value(&job.info,INCOMING_PID,0);
error[0] = 0;
if( (status = Set_job_ticket_file( &job, 0, job_ticket_fd )) ){
plp_snprintf( error,errlen,
_("Error setting up job ticket file - %s"),
Errormsg( errno ) );
goto error;
}
if( Lpq_status_file_DYN ){ unlink(Lpq_status_file_DYN); }
}
Free_line_list(&files);
discarding_large_job = 0;
job_in_progress = 0;
jobsize = 0;
Free_job(&job);
} else {
job_in_progress = 1;
}
/*
* we do not want to lock the hold file while there is an incoming job
*/
close( job_ticket_fd ); job_ticket_fd = -1;
}
} else {
Set_casekey_str_value(&files,filename,tempfile);
}
DEBUGF(DRECV2)("Receive_job: sending 0 ACK transfer done" );
status = Link_send( ShortRemote_FQDN, sock, Send_job_rw_timeout_DYN, "",1, 0 );
}
DEBUGF(DRECV2)("Receive_job: eof on transfer, job.info.count %d, files.count %d",
job.info.count, files.count );
if( !discarding_large_job ){
/*
* if we get just a control file and no data file, then we have a sender
* problem. We will NOT log this
*/
if( job.info.count && !files.count ){
/* we will not log this */ ;
} else if( files.count && Check_for_missing_files(&job, &files, error, errlen, 0, -1) ){
goto error;
}
} else {
char *f = Find_str_value( &job.info,HF_NAME );
if( !ISNULL(f) ){
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
Set_str_value(&job.info,ERROR,error);
Set_nz_flag_value(&job.info,ERROR_TIME,time(0));
Set_str_value(&job.info,INCOMING_TIME,0);
Set_str_value(&job.info,INCOMING_PID,0);
error[0] = 0;
if( (status = Set_job_ticket_file( &job, 0, -1 )) ){
plp_snprintf( error,errlen,
_("Error setting up job ticket file - %s"),
Errormsg( errno ) );
goto error;
}
if( Lpq_status_file_DYN ){ unlink(Lpq_status_file_DYN); }
discarding_large_job = 0;
}
}
error:
if( temp_fd > 0 ) close(temp_fd); temp_fd = -1;
if( fifo_fd > 0 ) close(fifo_fd); fifo_fd = -1;
Remove_tempfiles();
if( error[0] ){
DEBUGF(DRECV1)("Receive_job: error, removing job" );
DEBUGFC(DRECV4)Dump_job("Receive_job - error", &job );
s = Find_str_value(&job.info,HF_NAME);
if( !ISNULL(s) ) unlink(s);
if( ack == 0 ) ack = ACK_FAIL;
buffer[0] = ack;
plp_snprintf(buffer+1,sizeof(buffer)-1, "%s\n",error);
DEBUGF(DRECV1)("Receive_job: sending ACK %d, msg '%s'", ack, error );
(void)Link_send( ShortRemote_FQDN, sock,
Send_job_rw_timeout_DYN, buffer, safestrlen(buffer), 0 );
Link_close( Send_query_rw_timeout_DYN, sock );
} else {
Link_close( Send_query_rw_timeout_DYN, sock );
/* update the spool queue */
Get_spool_control( Queue_control_file_DYN, &Spool_control );
Set_flag_value(&Spool_control,CHANGE,1);
Set_spool_control( 0, Queue_control_file_DYN, &Spool_control );
if( Lpq_status_file_DYN ){
unlink( Lpq_status_file_DYN );
}
s = Server_queue_name_DYN;
if( !s ) s = Printer_DYN;
plp_snprintf( line, sizeof(line), "%s\n", s );
DEBUGF(DRECV1)("Receive_jobs: Lpd_request fd %d, starting '%s'", Lpd_request, line );
if( Write_fd_str( Lpd_request, line ) < 0 ){
logerr_die(LOG_ERR, _("Receive_jobs: write to fd '%d' failed"),
Lpd_request );
}
}
Free_line_list(&info);
Free_line_list(&files);
Free_job(&job);
Free_line_list(&l);
cleanup( 0 );
}
/***************************************************************************
* Block Job Transfer
* \RCV_BLOCKprinter size
* The actual file transferred has the format:
* \CONTROL_FILElen name
* [control file contents]
* \DATA_FILElen name
* [data file contents]
*
* We receive the entire file, placing it into the control file.
* We then split the job up as usual
***************************************************************************/
#define MAX_INPUT_TOKENS 10
int Receive_block_job( int *sock, char *input )
{
int temp_fd = -1, fd; /* fd for received file */
double read_len; /* file read length */
char error[SMALLBUFFER];
int errlen = sizeof(error);
char buffer[SMALLBUFFER];
int ack = 0, status = 0;
double file_len;
char *tempfile, *s;
struct stat statb;
struct line_list l;
int db, dbf;
int discarding_large_job = 0;
error[0] = 0;
Init_line_list(&l);
Name = "RECVB";
if( *input ) ++input;
Clean_meta(input);
Split(&l,input,Whitespace,0,0,0,0,0,0);
DEBUGFC(DRECV1)Dump_line_list("Receive_block_job: input", &l );
if( l.count != 2 ){
plp_snprintf( error, errlen-4, _("bad command line") );
goto error;
}
if( Is_clean_name( l.list[0] ) ){
plp_snprintf( error, errlen-4, _("bad printer name") );
goto error;
}
setproctitle( "lpd RECVB '%s'", l.list[0] );
if( Setup_printer( l.list[0], error, errlen-4, 0 ) ){
if( error[0] == 0 ){
plp_snprintf( error, errlen-4, _("%s: cannot set up printer"), Printer_DYN );
}
goto error;
}
db = Debug;
dbf =DbgFlag;
s = Find_str_value(&Spool_control,DEBUG);
if(!s) s = New_debug_DYN;
Parse_debug( s, 0 );
if( !(DRECVMASK & DbgFlag) ){
Debug = db;
DbgFlag = dbf;
} else {
dbf = Debug;
Debug = db;
if( Log_file_DYN ){
fd = Checkwrite( Log_file_DYN, &statb,0,0,0);
if( fd > 0 && fd != 2 ){
dup2(fd,2);
close(fd);
}
}
Debug = dbf;
}
DEBUGF(DRECV1)("Receive_block_job: debug '%s', Debug %d, DbgFlag 0x%x", s, Debug, DbgFlag );
DEBUGF(DRECV1)("Receive_block_job: spooling_disabled %d", Sp_disabled(&Spool_control) );
if( Sp_disabled(&Spool_control) ){
plp_snprintf( error, errlen-4,
_("%s: spooling disabled"), Printer_DYN );
ack = ACK_RETRY; /* retry */
goto error;
}
/* check for space */
file_len = strtod( l.list[1], 0 );
read_len = file_len;
if( Max_job_size_DYN > 0 && (read_len+1023)/1024 > Max_job_size_DYN ){
if( Discard_large_jobs_DYN ){
discarding_large_job = 1;
} else {
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
read_len/1024, Max_job_size_DYN );
ack = ACK_RETRY;
goto error;
}
} else if( !Check_space( read_len, Minfree_DYN, Spool_dir_DYN ) ){
plp_snprintf( error, errlen-4,
_("%s: insufficient file space"), Printer_DYN );
ack = ACK_RETRY;
goto error;
}
/*
* we are ready to read the file; send 0 ack saying so
*/
DEBUGF(DRECV1)("Receive_block_job: sending 0 ACK for job transfer request" );
status = Link_send( ShortRemote_FQDN, sock, Send_job_rw_timeout_DYN, "",1, 0 );
if( status ){
plp_snprintf( error, errlen-4,
_("%s: Receive_block_job: sending ACK 0 failed"), Printer_DYN );
goto error;
}
temp_fd = Make_temp_fd( &tempfile );
DEBUGF(DRECV4)("Receive_block_job: receiving '%s' %0.0f bytes ", tempfile, file_len );
status = Link_file_read( ShortRemote_FQDN, sock,
Send_job_rw_timeout_DYN, 0, temp_fd, &read_len, &ack );
DEBUGF(DRECV4)("Receive_block_job: received %0.0f bytes ", read_len );
if( status ){
plp_snprintf( error, errlen-4,
_("%s: transfer of '%s' from '%s' failed"), Printer_DYN,
tempfile, ShortRemote_FQDN );
ack = ACK_FAIL;
goto error;
}
/* extract jobs */
if( lseek( temp_fd, 0, SEEK_SET ) == -1 ){
plp_snprintf( error, errlen-4,
_("Receive_block_job: lseek failed '%s'"), Errormsg(errno) );
ack = ACK_FAIL;
goto error;
}
if( Scan_block_file( temp_fd, error, errlen-4, 0 ) ){
ack = ACK_FAIL;
goto error;
}
close( temp_fd );
temp_fd = -1;
DEBUGF(DRECV2)("Receive_block_job: sending 0 ACK" );
status = Link_send( ShortRemote_FQDN, sock, Send_job_rw_timeout_DYN, "",1, 0 );
if( status ){
plp_snprintf( error, errlen-4,
_("%s: sending ACK 0 for '%s' failed"), Printer_DYN, tempfile );
ack = ACK_RETRY;
goto error;
}
error[0] = 0;
error:
Free_line_list(&l);
if( temp_fd > 0 ){
close(temp_fd );
}
if( error[0] ){
if( ack != 0 ) ack = ACK_FAIL;
buffer[0] = ack;
plp_snprintf(buffer+1,sizeof(buffer)-1, "%s\n",error);
/* LOG( LOG_INFO) "Receive_block_job: error '%s'", error ); */
DEBUGF(DRECV1)("Receive_block_job: sending ACK %d, msg '%s'", ack, error );
(void)Link_send( ShortRemote_FQDN, sock,
Send_job_rw_timeout_DYN, buffer, safestrlen(buffer), 0 );
Link_close( Send_query_rw_timeout_DYN, sock );
} else {
Link_close( Send_query_rw_timeout_DYN, sock );
Remove_tempfiles();
s = Server_queue_name_DYN;
if( !s ) s = Printer_DYN;
plp_snprintf( buffer, sizeof(buffer), "%s\n", s );
DEBUGF(DRECV1)("Receive_block_jobs: Lpd_request fd %d, starting '%s'", Lpd_request, buffer );
if( Write_fd_str( Lpd_request, buffer ) < 0 ){
logerr_die(LOG_ERR, _("Receive_block_jobs: write to fd '%d' failed"),
Lpd_request );
}
}
return( error[0] != 0 );
}
/***************************************************************************
* int Scan_block_file( int fd, char *error, int errlen, struct line_list *header_info )
* we scan the block file, getting the various portions
*
* Generate the compressed data files - this has the format
* \3count cfname\n
* [count control file bytes]
* \4count dfname\n
* [count data file bytes]
* The header_info contains authentication information
*
* We extract the various sections and find the offsets.
* Note that the various name fields will be the original
* values; the ones we actually use will be the transfer values
* RETURNS: nonzero on error, error set
* 0 on success
***************************************************************************/
int Scan_block_file( int fd, char *error, int errlen, struct line_list *header_info )
{
char line[LINEBUFFER];
char buffer[LARGEBUFFER];
int startpos;
int read_len, filetype, tempfd = -1; /* type and length fields */
char *filename; /* name field */
char *tempfile; /* name field */
int status;
int len, count, n;
int job_ticket_fd = -1;
struct line_list l, info, files;
struct job job;
struct stat statb;
int discarding_large_job = 0;
double jobsize = 0;
if( fstat( fd, &statb) < 0 ){
Errorcode = JABORT;
logerr_die(LOG_INFO, "Scan_block_file: fstat failed");
}
DEBUGF(DRECV2)("Scan_block_file: starting, file size '%0.0f'",
(double)(statb.st_size) );
Init_line_list(&l);
Init_line_list(&info);
Init_line_list(&files);
Init_job(&job);
/* first we find the file position */
startpos = lseek( fd, 0, SEEK_CUR );
DEBUGF(DRECV2)("Scan_block_file: starting at %d", startpos );
error[0] = 0;
while( (status = Read_one_line( Send_job_rw_timeout_DYN, fd, line, sizeof(line) )) > 0 ){
/* the next position is the start of data */
Free_line_list(&l);
Free_line_list(&info);
startpos = lseek( fd, 0, SEEK_CUR );
if( startpos == -1 ){
plp_snprintf( error, errlen,
_("Scan_block_file: lseek failed '%s'"), Errormsg(errno) );
status = 1;
goto error;
}
DEBUGF(DRECV2)("Scan_block_file: '%s', end position %d",
line, startpos );
filetype = line[0];
if( filetype != CONTROL_FILE && filetype != DATA_FILE ){
/* get the next line */
continue;
}
Clean_meta(line+1);
Split(&info,line+1,Whitespace,0,0,0,0,0,0);
if( info.count != 2 ){
plp_snprintf( error, errlen,
_("bad length information '%s'"), line+1 );
status = 1;
goto error;
}
DEBUGFC(DRECV2)Dump_line_list("Scan_block_file- input", &info );
read_len = atoi( info.list[0] );
filename = info.list[1];
jobsize += read_len;
if( Max_job_size_DYN > 0 && (jobsize/1024) > (0.0+Max_job_size_DYN) ){
if( Discard_large_jobs_DYN ){
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
discarding_large_job = 1;
}
}
if( discarding_large_job ){
tempfd = Checkwrite( "/dev/null", &statb,0,0,0);
tempfile = 0;
} else {
tempfd = Make_temp_fd( &tempfile );
}
DEBUGF(DRECV2)("Scan_block_file: tempfd %d, read_len %d", read_len, tempfd );
for( len = read_len; len > 0; len -= count ){
n = sizeof(buffer);
if( n > len ) n = len;
count = Read_fd_len_timeout(Send_job_rw_timeout_DYN,fd,buffer,n);
DEBUGF(DRECV2)("Scan_block_file: len %d, reading %d, got count %d",
len, n, count );
if( count < 0 ){
plp_snprintf( error, errlen,
_("Scan_block_file: read failed '%s'"), Errormsg(errno) );
status = 1;
goto error;
} else if( count == 0 ){
plp_snprintf( error, errlen,
_("Scan_block_file: read unexecpted EOF") );
status = 1;
goto error;
}
n = write(tempfd,buffer,count);
if( n != count ){
plp_snprintf( error, errlen,
_("Scan_block_file: lseek failed '%s'"), Errormsg(errno) );
status = 1;
goto error;
}
}
close( tempfd);
tempfd = -1;
if( filetype == CONTROL_FILE ){
DEBUGF(DRECV2)("Scan_block_file: receiving new control file, old job.info.count %d, old files.count %d",
job.info.count, files.count );
if( job.info.count ){
/* we received another control file, finish this job up */
if( discarding_large_job ){
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
Set_str_value(&job.info,ERROR,error);
Set_str_value(&job.info,INCOMING_TIME,0);
Set_str_value(&job.info,INCOMING_PID,0);
error[0] = 0;
if( (status = Set_job_ticket_file( &job, 0, job_ticket_fd )) ){
plp_snprintf( error,errlen,
_("Error setting up job ticket file - %s"),
Errormsg( errno ) );
goto error;
}
if( Lpq_status_file_DYN ){ unlink(Lpq_status_file_DYN); }
} else {
if( Check_for_missing_files(&job, &files, error, errlen, header_info, job_ticket_fd) ){
goto error;
}
}
close( job_ticket_fd ); job_ticket_fd = -1;
Free_line_list(&files);
jobsize = 0;
}
Free_job(&job);
Set_str_value(&job.info,OPENNAME,tempfile);
job_ticket_fd = Setup_temporary_job_ticket_file( &job, filename, 1, 0, error, errlen );
if( job_ticket_fd < 0 ){
goto error;
}
if( files.count ){
/* we have datafiles, FOLLOWED by a control file,
followed (possibly) by another control file */
/* we receive another control file */
if( discarding_large_job ){
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
Set_str_value(&job.info,ERROR,error);
Set_nz_flag_value(&job.info,ERROR_TIME,time(0));
Set_str_value(&job.info,INCOMING_TIME,0);
Set_str_value(&job.info,INCOMING_PID,0);
error[0] = 0;
if( (status = Set_job_ticket_file( &job, 0, job_ticket_fd )) ){
plp_snprintf( error,errlen,
_("Error setting up job ticket file - %s"),
Errormsg( errno ) );
goto error;
}
if( Lpq_status_file_DYN ){ unlink(Lpq_status_file_DYN); }
} else {
if( Check_for_missing_files(&job, &files, error, errlen, header_info, job_ticket_fd) ){
goto error;
}
}
Free_line_list(&files);
jobsize = 0;
Free_job(&job);
}
/*
* we close the job_ticket_fd file so that we do not lock the hold file while
* the incoming job is arriving.
*/
close( job_ticket_fd ); job_ticket_fd = -1;
} else {
Set_str_value(&files,filename,tempfile);
}
}
if( files.count ){
if( discarding_large_job ){
plp_snprintf( error, errlen,
_("size %0.3fK exceeds %dK"),
jobsize/1024, Max_job_size_DYN );
Set_str_value(&job.info,ERROR,error);
Set_nz_flag_value(&job.info,ERROR_TIME,time(0));
Set_str_value(&job.info,INCOMING_TIME,0);
Set_str_value(&job.info,INCOMING_PID,0);
error[0] = 0;
if( (status = Set_job_ticket_file( &job, 0, job_ticket_fd )) ){
plp_snprintf( error,errlen,
_("Error setting up job ticket file - %s"),
Errormsg( errno ) );
goto error;
}
if( Lpq_status_file_DYN ){ unlink(Lpq_status_file_DYN); }
} else {
if( Check_for_missing_files(&job, &files, error, errlen, header_info, job_ticket_fd) ){
goto error;
}
}
}
error:
if( error[0] ){
Remove_tempfiles();
Remove_job( &job );
}
if( job_ticket_fd > 0 ) close(job_ticket_fd); job_ticket_fd = -1;
if( tempfd > 0 ) close(tempfd); tempfd = -1;
Free_line_list(&l);
Free_line_list(&info);
Free_line_list(&files);
Free_job(&job);
return( status );
}
/***************************************************************************
* static int read_one_line(int fd, char *buffer, int maxlen );
* reads one line (terminated by \n) into the buffer
*RETURNS: 0 if EOF characters read
* n = # chars read
* Note: buffer terminated by 0
***************************************************************************/
static int Read_one_line( int timeout, int fd, char *buffer, int maxlen )
{
int len, status;
len = status = 0;
while( len < maxlen-1 && (status = Read_fd_len_timeout( timeout, fd, &buffer[len], 1)) > 0 ){
if( buffer[len] == '\n' ){
break;
}
++len;
}
buffer[len] = 0;
return( status );
}
int Check_space( double jobsize, int min_space, char *pathname )
{
double space = Space_avail(pathname);
int ok;
jobsize = ((jobsize+1023)/1024);
ok = ((jobsize + min_space) < space);
DEBUGF(DRECV1)("Check_space: path '%s', space %0.0f Bytes, jobsize %0.0fK, ok %d",
pathname, space, jobsize, ok );
return( ok );
}
static int Do_perm_check( struct job *job, char *error, int errlen )
{
int permission = 0; /* permission */
char *s;
DEBUGFC(DRECV1)Dump_job("Do_perm_check", job );
Perm_check.service = 'R';
Perm_check.printer = Printer_DYN;
s = Find_str_value(&job->info,LOGNAME);
Perm_check.user = s;
Perm_check.remoteuser = s;
Perm_check.host = 0;
s = Find_str_value(&job->info,FROMHOST);