Require OpenBSD:: only on OpenBSD, re-style code

1 files changed, 33 insertions, 23 deletions

diff --git a/pictor.pl b/pictor.pl
index bffc7e2..7bfe2ea 100755
--- a/pictor.pl
+++ b/pictor.pl
@@ -3,19 +3,29 @@
 use strict;
 use warnings;
 use feature 'say';
-use OpenBSD::Pledge;
-use OpenBSD::Unveil;
+
+use constant is_OpenBSD => $^O eq "openbsd";
+if (is_OpenBSD) {
+    require OpenBSD::Unveil;
+    OpenBSD::Unveil->import;
+
+    require OpenBSD::Pledge;
+    OpenBSD::Pledge->import;
+} else {
+    sub unveil { return 1; }
+    sub pledge { return 1; }
+}
 
 # Inititalize pledge.
-pledge( qw( stdio rpath unveil ) ) or
-    die "Unable to pledge: $!";
+pledge( qw( stdio rpath unveil ) )
+    or die "Unable to pledge: $!";
 
 # $term will store the user input.
 my $term;
 
 # User must pass at least one argument.
-die "usage: pictor term\n" if
-    @ARGV < 1;
+die "usage: pictor term\n"
+    if @ARGV < 1;
 
 # Assume first argument to be term.
 $term = $ARGV[0];
@@ -23,29 +33,29 @@ $term = $ARGV[0];
 # User can rename this program to "wtf" & run "wtf is wtf" instead of
 # "wtf wtf", "wtf is term" looks better so we use $ARGV[1] as $term if
 # $ARGV[0] is "is".
-$term = $ARGV[1] if
-    $ARGV[0] eq "is";
+$term = $ARGV[1]
+    if $ARGV[0] eq "is";
 
 # 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'
-    );
+    '/usr/local/share/misc/acronyms.comp',
+);
 
 # Unveil each file with only read permission.
 foreach my $fn (@files) {
-    unveil( $fn, "r" ) or
-        die "Unable to unveil: $!";
+    unveil( $fn, "r" )
+        or die "Unable to unveil: $!";
 }
 
 # Block further unveil calls.
-unveil() or
-    die "Unable to lock unveil: $!";
+unveil()
+    or die "Unable to lock unveil: $!";
 
 # Drop unveil permission.
-pledge( qw( stdio rpath ) ) or
-    die "Unable to pledge: $!";
+pledge( qw( stdio rpath ) )
+    or die "Unable to pledge: $!";
 
 # $total_acronyms will hold the total number of acronyms we find.
 my $total_acronyms = 0;
@@ -58,7 +68,7 @@ foreach my $fn (@files) {
         do {
             warn "Unable to open $fn: $!\n";
             next;
-    };
+        };
 
     while (my $line = readline $fh) {
         # \Q is quotemeta, \E terminates it because otherwise it would
@@ -73,13 +83,13 @@ foreach my $fn (@files) {
 }
 
 # Drop rpath permission.
-pledge( qw( stdio ) ) or
-    die "Unable to pledge: $!";
+pledge( qw( stdio ) )
+    or die "Unable to pledge: $!";
 
 # die if no match is found.
-die "I don't know what '$term' means!\n" unless
-    $total_acronyms;
+die "I don't know what '$term' means!\n"
+    unless $total_acronyms;
 
 # Drop pledge permissions.
-pledge() or
-    die "Unable to pledge: $!";
+pledge()
+    or die "Unable to pledge: $!";