/usr/bin/mmroff is in groff 1.22.2-5.
This file is owned by root:root, with mode 0o755.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | #! /usr/bin/perl
# -*- Perl -*-
# Copyright (C) 1989, 2005, 2009
# Free Software Foundation, Inc.
#
# This file is part of groff.
#
# groff 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.
#
# groff 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/>.
use strict;
# runs groff in safe mode, that seems to be the default
# installation now. That means that I have to fix all nice
# features outside groff. Sigh.
# I do agree however that the previous way opened a whole bunch
# of security holes.
my $no_exec;
# check for -x and remove it
if (grep(/^-x$/, @ARGV)) {
$no_exec++;
@ARGV = grep(!/^-x$/, @ARGV);
}
# mmroff should always have -mm, but not twice
@ARGV = grep(!/^-mm$/, @ARGV);
my $check_macro = "groff -rRef=1 -z -mm @ARGV";
my $run_macro = "groff -mm @ARGV";
my (%cur, $rfilename, $max_height, $imacro, $max_width, @out, @indi);
open(MACRO, "$check_macro 2>&1 |") || die "run $check_macro:$!";
while(<MACRO>) {
if (m#^\.\\" Rfilename: (\S+)#) {
# remove all directories just to be more secure
($rfilename = $1) =~ s#.*/##;
next;
}
if (m#^\.\\" Imacro: (\S+)#) {
# remove all directories just to be more secure
($imacro = $1) =~ s#.*/##;
next;
}
if (m#^\.\\" Index: (\S+)#) {
# remove all directories just to be more secure
my $f;
($f = $1) =~ s#.*/##;
&print_index($f, \@indi, $imacro);
@indi = ();
$imacro = '';
next;
}
my $x;
if (($x) = m#^\.\\" IND (.+)#) {
$x =~ s#\\##g;
my @x = split(/\t/, $x);
grep(s/\s+$//, @x);
push(@indi, join("\t", @x));
next;
}
if (m#^\.\\" PIC id (\d+)#) {
%cur = ('id', $1);
next;
}
if (m#^\.\\" PIC file (\S+)#) {
&psbb($1);
&ps_calc($1);
next;
}
if (m#^\.\\" PIC (\w+)\s+(\S+)#) {
eval "\$cur{'$1'} = '$2'";
next;
}
s#\\ \\ $##;
push(@out, $_);
}
close(MACRO);
if ($rfilename) {
push(@out, ".nr pict*max-height $max_height\n") if defined $max_height;
push(@out, ".nr pict*max-width $max_width\n") if defined $max_width;
open(OUT, ">$rfilename") || "create $rfilename:$!";
print OUT '.\" references', "\n";
my $i;
for $i (@out) {
print OUT $i;
}
close(OUT);
}
exit 0 if $no_exec;
exit system($run_macro);
sub print_index {
my ($f, $ind, $macro) = @_;
open(OUT, ">$f") || "create $f:$!";
my $i;
for $i (sort @$ind) {
if ($macro) {
$i = '.'.$macro.' "'.join('" "', split(/\t/, $i)).'"';
}
print OUT "$i\n";
}
close(OUT);
}
sub ps_calc {
my ($f) = @_;
my $w = abs($cur{'llx'}-$cur{'urx'});
my $h = abs($cur{'lly'}-$cur{'ury'});
$max_width = $w if $w > $max_width;
$max_height = $h if $h > $max_height;
my $id = $cur{'id'};
push(@out, ".ds pict*file!$id $f\n");
push(@out, ".ds pict*id!$f $id\n");
push(@out, ".nr pict*llx!$id $cur{'llx'}\n");
push(@out, ".nr pict*lly!$id $cur{'lly'}\n");
push(@out, ".nr pict*urx!$id $cur{'urx'}\n");
push(@out, ".nr pict*ury!$id $cur{'ury'}\n");
push(@out, ".nr pict*w!$id $w\n");
push(@out, ".nr pict*h!$id $h\n");
}
sub psbb {
my ($f) = @_;
unless (open(IN, $f)) {
print STDERR "Warning: Postscript file $f:$!";
next;
}
while(<IN>) {
if (/^%%BoundingBox:\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/) {
$cur{'llx'} = $1;
$cur{'lly'} = $2;
$cur{'urx'} = $3;
$cur{'ury'} = $4;
}
}
close(IN);
}
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