generic (4175B)
1 #!/usr/local/plan9/bin/rc 2 3 rfork s 4 5 if (! ~ $DEBUG '') flag x + 6 7 LPDELAY=60 8 9 if (! ~ $#* 2 && ! ~ $#* 3) { 10 echo 'usage generic local_cmd _remote_cmd [ success_cmd ]' >[1=2] 11 exit 'argument count' 12 } 13 LOCAL_CMD=$1 14 REMOTE_CMD=$2 15 SUCCESS_CMD=$3 16 17 # we don't want to make a LOCK file unless we are at the destination 18 # let the spooler take care of moving it there 19 # this is necessary for clients and servers that share the 20 # same lp queue directory 21 if (! ~ $THIS_HOST $DEST_HOST || ! LOCK $LPSPOOL/$LPDEST/LOCK $THIS_HOST $pid) exit '' 22 23 cd $LPSPOOL 24 25 MAXTRY=2 26 PRINTLOG=$LPLOGDIR/$LPDEST^.st 27 28 fn schedule{ 29 FILE=`{lpsub sched $SCHED $LPDEST} 30 } 31 32 while (schedule; ! ~ $#FILE 0) { 33 SCHEDLINE=`{cat $LPDEST/$FILE(1)^id} 34 LSLINE=`{ls -l $LPDEST/$FILE(1)} 35 echo `{date} start $SCHEDLINE 36 if (! test -s $LPDEST/.seqno) { 37 echo 0 > $LPDEST/.seqno 38 } 39 if not { 40 LPSEQNO = `{cat $LPDEST/.seqno | awk '{seqno = $1 + 1; if (seqno > 999) seqno = 0; print seqno}'} 41 echo $LPSEQNO > $LPDEST/.seqno 42 } 43 STARTIME=`{date} 44 if (! test -s $LPDEST/$FILE(1)) { 45 echo `{date} file $LPDEST/$FILE(1) disappeared or is empty 46 ls -l $LPDEST 47 echo $SCHEDLINE(2)$SCHEDLINE(4)' '$SCHEDLINE(3) $SCHEDLINE(5)' ! '$LSLINE(6) $STARTIME(4) >> $LPLOG 48 rm -f $LPDEST/$FILE $LPDEST/$FILE^id 49 } 50 if not { 51 if (~ $THIS_HOST $DEST_HOST) { 52 if (test -f $LPLIB/perm/$LPDEST && grep -s $SCHEDLINE(2) $LPLIB/perm/$LPDEST) { 53 echo `{date} permission denied 54 echo you are not allowed to use printer $LPDEST | mail $SCHEDLINE(2) 55 rm -f $LPDEST/$FILE(1) $LPDEST/$FILE(1)^id 56 } 57 if not { 58 echo `{date} sending to printer 59 > $PRINTLOG 60 STARTIME=`{date} 61 @{eval $LOCAL_CMD} 62 rv=$status 63 ENDTIME=`{date} 64 status=$rv 65 if () { 66 echo $SCHEDLINE(1)^$SCHEDLINE(3)' '$SCHEDLINE(2)' '$SCHEDLINE(4)' + '$LSLINE(6)' '$STARTIME(4)' '$ENDTIME(4) 67 eval $SUCCESS_CMD 68 rm -f $LPDEST/$FILE(1) $LPDEST/$FILE(1)^id 69 } 70 if not { 71 echo $SCHEDLINE(1)^$SCHEDLINE(3)' '$SCHEDLINE(2)' '$SCHEDLINE(4)' - '$LSLINE(6)' '$STARTIME(4)' '$ENDTIME(4)' status='$rv 72 THISTRY=`{echo $SCHEDLINE(4) + 1|hoc} 73 echo $SCHEDLINE(1) $SCHEDLINE(2) $SCHEDLINE(3) $THISTRY >$LPDEST/$FILE(1)^id 74 if (test $THISTRY -ge $MAXTRY) { 75 if (test -d $LPLIB/prob/$LPDEST) { 76 cp $LPDEST/$FILE(1) $LPLIB/prob/$LPDEST 77 cp $LPDEST/$FILE(1)^id $LPLIB/prob/$LPDEST 78 cp $PRINTLOG $LPLIB/prob/$LPDEST/$FILE(1)^log 79 } 80 upasname=daemon 81 mail $SCHEDLINE(2) <<endmail1 82 rm -f $LPDEST/$FILE(1) $LPDEST/$FILE(1)^id 83 } 84 if not { 85 touch $LPDEST/$FILE(1) 86 sleep $LPDELAY 87 } 88 } 89 } 90 } 91 if not { 92 # we don't want to be here 93 # trap '' 13 # temp hack: ignore SIGPIPE 94 echo `{date} queuing - should not get here 95 STARTIME=`{date} 96 eval $REMOTE_CMD 97 rv=$status 98 ENDTIME=`{date} 99 if (~ $rv '') { 100 echo $SCHEDLINE(1)^$SCHEDLINE(3)' '$SCHEDLINE(2)' '$SCHEDLINE(4)' + '$LSLINE(6)' '$STARTIME(4)' '$ENDTIME(4) 101 rm -f $LPDEST/$FILE(1) $LPDEST/$FILE(1)^id 102 } 103 if not { 104 echo $SCHEDLINE(1)^$SCHEDLINE(3)' '$SCHEDLINE(2)' '$SCHEDLINE(4)' - '$LSLINE(6)' '$STARTIME(4)' '$ENDTIME(4) 105 echo status $rv from '$REMOTE_CMD' 106 THISTRY=`{echo $SCHEDLINE(4) + 1|hoc} 107 echo $SCHEDLINE(1) $SCHEDLINE(2) $SCHEDLINE(3) $THISTRY >$LPDEST/$FILE(1)^id 108 if (~ $THISTRY $MAXTRY) { 109 upasname=daemon 110 mail $SCHEDLINE(2) <<endmail2 111 } 112 if not { 113 touch $LPDEST/$FILE(1) 114 sleep $LPDELAY 115 116 # this is here to deal with running out of 117 # Datakit channels or other stupid problems 118 # backoff connection attempts but not too long 119 LPDELAY=`{echo $LPDELAY '*' 2|hoc} 120 if (test $LPDELAY -gt 960) 121 LPDELAY=60 122 } 123 } 124 } 125 } 126 } 127 Your job has failed to print on $LPDEST after $MAXTRY attempt(s). 128 If the directory $LPLIB/prob/$LPDEST exists on $DEST_HOST, 129 the file has been put there along with the printer log file. 130 Your friendly printer daemon 131 endmail1 132 Your job has failed to print on $LPDEST after $MAXTRY attempt(s). 133 There is a problem in sending the job to $DEST_HOST, 134 but I'll keep trying. Have a nice day. 135 Your enthusiastic printer daemon 136 endmail2 137 UNLOCK $LPSPOOL/$LPDEST 138 rm $LPSPOOL/$LPDEST >[2]/dev/null