/usr/share/pnm2ppa/pnm2ppa-magicfilter.in is in printer-driver-pnm2ppa 1.13-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | #!/usr/sbin/magicfilter
#
# Magic filter setup file for HP printers 720, 820 and 1000 series.
# pnm2ppa supports color and black/white printing. This file was
# tested on a HP Deskjet 720C printer, but is supposed to work on
# other printers using the HP PPA protocol, too. Supported pagesizes
# are a4, letter and legal. The pagesize has to be set in /etc/papersize
# and not in the configuration file /etc/pnm2ppa.conf.
#
# To change the model of the printer, do not edit this file. Instead, change
# the "version" setting in /etc/pnm2ppa.conf
# Adapted from dj500-filter, cpsonly600-filter and pbm2ppa-filter
# by Roland Bauerschmidt <roland@copyleft.de>, 2000
# PostScript
0 %! fpipe /usr/bin/gs -q -dSAFER -dNOPAUSE -r600 -sDEVICE=ppmraw -sOutputFile=- - -c quit
0 \004%! fpipe /usr/bin/gs -q -dSAFER -dNOPAUSE -r600 -sDEVICE=ppmraw -sOutputFile=- - -c quit
# PDF
0 %PDF fpipe /usr/bin/gs -q -dSAFER -dNOPAUSE -r600 -sDEVICE=ppmraw -sOutputFile=- $FILE -c quit
# TeX DVI
0 \367\002 fpipe /usr/bin/dvips -D 600 -R -q -f
# compress'd data
0 \037\235 pipe /bin/gzip -cdq
# packed, gzipped, frozen and SCO LZH data
0 \037\036 pipe /bin/gzip -cdq
0 \037\213 pipe /bin/gzip -cdq
0 \037\236 pipe /bin/gzip -cdq
0 \037\240 pipe /bin/gzip -cdq
# troff documents
0 .\?\?\040 fpipe `/usr/bin/grog -Tps $FILE`
0 .\\\" fpipe `/usr/bin/grog -Tps $FILE`
0 '\\\" fpipe `/usr/bin/grog -Tps $FILE`
0 '.\\\" fpipe `/usr/bin/grog -Tps $FILE`
0 \\\" fpipe `/usr/bin/grog -Tps $FILE`
# ditroff
0 "x T ps" pipe /usr/bin/grops
0 "x T dvi" pipe /usr/bin/grodvi
0 "x T ascii" pipe /usr/bin/grotty
0 "x T latin1" pipe /usr/bin/grotty
0 "x T lj4" reject Cannot print LaserJet 4 ditroff files.
# Portable bit-, grey- and pixmaps
0 P1\n pipe /usr/bin/pnmtops -scale 1000 -dpi 600 2>/dev/null
0 P2\n pipe /usr/bin/pnmtops -scale 1000 -dpi 600 2>/dev/null
0 P3\n pipe /usr/bin/pnmtops -scale 1000 -dpi 600 2>/dev/null
0 P4\n pipe /usr/bin/pnmtops -scale 1000 -dpi 600 2>/dev/null
0 P5\n pipe /usr/bin/pnmtops -scale 1000 -dpi 600 2>/dev/null
0 P6\n filter /usr/bin/pnm2ppa @OPTIONS@ $ZOPT -i - -o -
# HP Printer Control Language (PCL) -- assume start with reset code
0 \033E\033 reject Cannot print PCL files on this printer.
# HP Printer Job Language (PJL)
0 \033%-12345X reject Cannot print PJL files on this printer.
0 "@PJL " reject Cannot print PJL files on this printer.
0 @PJL\t reject Cannot print PJL files on this printer.
0 @PJL\r reject Cannot print PJL files on this printer.
0 @PJL\n reject Cannot print PJL files on this printer.
# GIF files
0 GIF87a pipe /usr/bin/giftopnm 2>/dev/null
0 GIF89a pipe /usr/bin/giftopnm 2>/dev/null
# JFIF (JPEG) files
0 \377\330\377\340\?\?JFIF\0 pipe /usr/bin/djpeg -pnm
# TIFF files (the last two bytes of the "magic" is really a version number;
# but the magic is really lame and as far as I have understood the version
# number has never changed and never will, so we include it.)
0 MM\0\x2a fpipe /usr/bin/tiff2ps $FILE
0 II\x2a\0 fpipe /usr/bin/tiff2ps $FILE
# BMP files (even lousier magic -- Microsoft strikes again!)
0 BM\?\?\?\?\?\?\?\?\?\?\?\?\x0c pipe \
/usr/bin/bmptoppm 2>/dev/null
0 BM\?\?\?\?\?\?\?\?\?\?\?\?\x40 pipe \
/usr/bin/bmptoppm 2>/dev/null
0 BM\?\?\?\?\?\?\?\?\?\?\?\?\x28 pipe \
/usr/bin/bmptoppm 2>/dev/null
# Garbage delivered from Windows via Samba
# (donated by Andree Leidenfrost <leidenfrost@dkrz.de>)
# 300 \033\052\157 cat
# later changed to
# (Bug report #22866: magicfilter: Incorrect magic for Win95/Samba print jobs)
0 \000\000\000\000\000 cat
# Sun rasterfiles
0 \x59\xa6\x6a\x95 pipe /usr/bin/rasttopnm 2>/dev/null
# SGI Imagelib (IRIS RGB) files
0 \x1\xda pipe /usr/bin/sgitopnm 2>/dev/null
0 \xda\x1 pipe /usr/bin/sgitopnm 2>/dev/null
# FIG files; reported by Steven P. Hill <sph@uscbu.ih.att.com>
0 #FIG pipe /usr/bin/X11/fig2dev -Lps -P -l dummy
#
# Standard rejects... things we don't want to print
#
# Various archive formats
257 ustar\0 reject Attempted to print a tar file.
257 "ustar \0" reject Attempted to print a tar file.
0 07070 reject Attempted to print a cpio file.
0 PK\3\4 reject Attempted to print a zip file.
20 \xdc\xa7\xc7\xfd reject Attempted to print a zoo file.
# Binaries (Linux): reject with email message
0 \013\1d\0 reject Attempted to print a compiled binary.
0 \100\1d\0 reject Attempted to print a compiled binary.
0 \007\1d\0 reject Attempted to print a compiled binary.
0 \314\0d\0 reject Attempted to print a compiled binary.
0 \177ELF reject Attempted to print an ELF object.
0 \007\001\0 reject Attempted to print an object file.
216 \021\001\0\0 reject Attempted to print a core dump file.
0 !<arch> reject Attempted to print an archive.
0 =<ar> reject Attempted to print an archive.
# Don't confuse this one with troff!
0 .snd reject Attempted to print Sun/NeXT audio data.
# wacko troff magic
0 ''' fpipe `/usr/bin/grog -Tps $FILE`
# wild guess: PCL control codes start with <ESC>
0 \033 reject Cannot print PCL files on this printer.
# Default entry -- for normal (text) files. MUST BE LAST.
# If you do not have djscript use the other default line or, better, install
# it. MM
#
default pipe /usr/bin/enscript -B -p-
|