* Use passive FTP in wget.

corepkgs/fetchurl/fetchurl.sh.in

@@ -9,7 +9,7 @@ if test -f "$prefetch"; then
     echo "using prefetched $prefetch";
     mv $prefetch $out || exit 1
 else
-    @wget@ "$url" -O "$out" || exit 1
+    @wget@ --passive-ftp "$url" -O "$out" || exit 1
 fi
 
 actual=$(@bindir@/nix-hash --flat $out)

scripts/nix-prefetch-url.in

@@ -10,7 +10,7 @@ print "fetching $url...\n";
 
 my $out = "@prefix@/store/nix-prefetch-url-$$";
 
-system "@wget@ '$url' -O '$out'";
+system "@wget@ --passive-ftp '$url' -O '$out'";
 $? == 0 or die "unable to fetch $url";
 
 my $hash=`@bindir@/nix-hash --flat $out`;