allow /32 etc in is_ipaddr

[spider.git] / perl / DXUtil.pm

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index 207d27711e002e017ee72bcd5dcd5fede0273a82..d23c27cfa5e3d73e4d3c21fae04aef16d6d08a9e 100644 (file)
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -15,6 +15,7 @@ use File::Copy;
 use Data::Dumper;
 use Time::HiRes qw(gettimeofday tv_interval);
 use Text::Wrap;
+use Socket qw(AF_INET6 AF_INET inet_pton);
 
 use strict;
 
@@ -45,6 +46,14 @@ $pi = 3.141592653589;
 $d2r = ($pi/180);
 $r2d = (180/$pi);
 
+our $ptonok;
+
+BEGIN {
+       $ptonok = !defined inet_pton(AF_INET,  '016.17.184.1')
+               && !defined inet_pton(AF_INET6, '2067::1:')
+               # Some old versions of Socket are hopelessly broken
+               && length(inet_pton(AF_INET, '1.1.1.1')) == 4;
+}
 
 # a full time for logging and other purposes
 sub atime
@@ -380,8 +389,8 @@ sub filecopy
 sub unpad
 {
        my $s = shift;
-       $s =~ s/\s+$//;
-       $s =~ s/^\s+//;
+       $s =~ s/^\s*//;
+       $s =~ s/\s*$//;
        return $s;
 }
 
@@ -448,7 +457,25 @@ sub is_latlong
 # is it an ip address?
 sub is_ipaddr
 {
-    return $_[0] =~ /^(?:(?:\:\:)?\d+\.\d+\.\d+\.\d+)|(?:[0-9a-f]{1,4}\:)?(?:\:[0-9a-f]{1,4}(?:\:\:)?){1,6}$/i;
+       $_[0] =~ s|/\d+$||;
+       if ($ptonok) {
+               if ($_[0] =~ /:/) {
+                       if (inet_pton(AF_INET6, $_[0])) {
+                               return ($_[0] =~ /([:0-9a-f]+)/);
+                       }
+               } else {
+                       if (inet_pton(AF_INET, $_[0])) {
+                               return ($_[0] =~ /([\.\d]+)/);
+                       }
+               }
+       } else {
+               if ($_[0] =~ /:/) {
+                       return ($_[0] =~ /^(:?:?(?:[0-9a-f]{1,4}\:)?(?:\:[0-9a-f]{1,4}(?:\:\:)?){1,8})$/i);     
+               } else {
+                       return ($_[0] =~ /^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})$/);
+               }
+       }
+       return undef;
 }
 
 # is it a zulu time hhmmZ
@@ -551,7 +578,7 @@ sub diffms
 sub difft
 {
        my $b = shift;
-       my $adds = shift;
+       my $adds = shift // 0;
        
        my $t;
        if (ref $b eq 'ARRAY') {