/usr/bin/ainsl is in fai-client 3.4.8ubuntu2.
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 | #! /usr/bin/perl
# $Id$
#*********************************************************************
#
# ainsl -- AppendIfNoSuchLine written in Perl
#
# This script is part of FAI (Fully Automatic Installation)
# Copyright (C) 2006-2010 Thomas Lange, lange@informatik.uni-koeln.de
# Universitaet zu Koeln
#
#*********************************************************************
# 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 2 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.
#
# A copy of the GNU General Public License is available as
# '/usr/share/common-licences/GPL' in the Debian GNU/Linux distribution
# or on the World Wide Web at http://www.gnu.org/copyleft/gpl.html. You
# can also obtain it by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#*********************************************************************
use strict;
use Getopt::Std;
our ($opt_a,$opt_h,$opt_D,$opt_n,$opt_s,$opt_v,$opt_q,$opt_Q);
my $filename;
my $verbose;
my $debug;
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub usage {
my $exitcode = shift;
print << "EOF";
ainsl, AppendIfNoSuchLine written in Perl.
Copyright (C) 2006-2010 by Thomas Lange
Usage: ainsl [OPTION] FILE LINE [PATTERN]
-a Autocreate file if not existing.
-D Create debug output.
-h Show summary of options.
-n Print the actions, but do not execute them.
-Q Quote all metacharacters in pattern. Uses perl\'s \\Q function.
-q Quote * and + metacharacters in pattern.
-s Convert blanks in line to '\\s+' regexp.
-v Create verbose output.
EOF
exit $exitcode;
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub autocreate {
-f $filename && return;
# create missing parts of a path. Could be replaced by File::Path
my $path;
while ($filename =~ m#([^/]+)/#g) {
$path.="/$1";
-d $path && next;
print "ainsl: create $path\n" if $debug;
$opt_n && next;
mkdir $path || die "ainsl: can't create $path $!";
}
print "ainsl: create $filename\n" if $verbose;
$opt_n && return;
open (FILE,">$filename") || die "ainsl: can't create $filename $!";
close (FILE);
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
getopts('aDhsvnQq') || usage(3);
$opt_h && usage(0);
$verbose = $opt_v || $ENV{verbose} || 0;
$debug = $opt_D || $ENV{debug} || 0;
$filename = shift;
my $line = shift;
my $optpattern = shift;
my $found = 0;
usage(3) unless defined $line;
print "FILE: $filename\nLINE: $line\nPATTERN: $optpattern\n" if $debug;
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
$opt_a && autocreate;
my $pattern = (defined $optpattern) ? $optpattern: $line;
# process pattern and line
# remove ^ and $ in line (only at start and end), but still use it for pattern
# in no explicit pattern was given
unless (defined $optpattern) {
# remove special chars ^ and $ from line
$line =~ s/^\^//;
$line =~ s/\$$//;
# escape '(' and ')' if no pattern was given and line is used
$pattern =~s/\(/\\(/g;
$pattern =~s/\)/\\)/g;
$pattern =~s/\+/\\+/g;
}
$opt_s && $pattern=~ s/\s+/\\s+/g;
$opt_q && $pattern=~ s/\*/\\*/g;
$opt_q && $pattern=~ s/\+/\+/g;
$pattern="\Q$pattern\E" if $opt_Q;
print "ainsl: newpattern: $pattern\n" if $debug;
print "ainsl: newline: $line\n" if $debug;
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# check if pattern already included in file
-f $filename || die "ainsl: target file $filename does not exist.\n";
open (INFILE, "<$filename") or die "ainsl: Can't open $filename $!\n";
while (<INFILE>) {
if (/$pattern/o) {
print "aisnl: Pattern found. Nothing to append.\n" if $debug;
$found=1;
last;
}
}
close(INFILE);
exit 0 if $found; # nothing to append
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Append line to file
print "ainsl: appending to $filename: $line\n" if $verbose;
exit 0 if $opt_n;
open (INFILE, ">>$filename") or die "ainsl: can't open $filename for writing. $!";
print INFILE $line,"\n";
close(INFILE);
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