blob: 6d4a523d77786baf17cba27731931984fee2965c (
plain) (
blame)
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
|
#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';
use OpenBSD::Pledge;
use OpenBSD::Unveil;
pledge( qw( rpath unveil ) ) or
die "Unable to pledge: $!";
# $term will store the user input.
my $term;
# User must pass at least one argument.
if (@ARGV < 1) {
say STDERR "usage: wtf.pl term";
exit 1;
} else {
$term = $ARGV[0];
}
# files contains list of all files to search for acronyms.
my @files = (
'/usr/local/share/misc/acronyms',
'/usr/local/share/misc/acronyms-o',
'/usr/local/share/misc/acronyms.comp'
);
# Unveil each file with only read permission.
foreach my $file (@files) {
unveil( $file, "r" ) or
die "Unable to unveil: $!";
}
# Block further unveil calls.
unveil() or
die "Unable to lock unveil: $!";
# drop pledge permissions
pledge( qw( rpath )) or
die "Unable to pledge: $!";
# Search for acronym in every file.
foreach my $file (@files) {
open my $fh, '<', $file or
# The program should continue if the file doesn't exist but
# warn the user about it.
do {
warn "Unable to open $file: $!";
next;
};
while (my $line = readline $fh) {
# \Q is quotemeta, \E terminates it because otherwise it would
# mess with \s. This regex matches when $line starts with
# "$term\s", \s being any kind of whitespace.
print $line if ($line =~ /^\Q${term}\E\s/i);
}
}
# drop pledge permissions
pledge() or
die "Unable to pledge: $!";
|