Slackware 14.0slackware-14.0

Wed Sep 26 01:10:42 UTC 2012
Slackware 14.0 x86_64 stable is released!

We're perfectionists here at Slackware, so this release has been a long
time a-brewing.  But we think you'll agree that it was worth the wait.
Slackware 14.0 combines modern components, ease of use, and flexible
configuration... our "KISS" philosophy demands it.

The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a
dual-sided
32-bit/64-bit x86/x86_64 DVD.  Please consider supporting the Slackware
project by picking up a copy from store.slackware.com.  We're taking
pre-orders now, and offer a discount if you sign up for a subscription.

Thanks to everyone who helped make this happen.  The Slackware team, the
upstream developers, and (of course) the awesome Slackware user
community.

Have fun!  :-)

1 files changed, 555 insertions, 0 deletions

diff --git a/source/xap/xscreensaver/xscreensaver-getimage-file-5.14 b/source/xap/xscreensaver/xscreensaver-getimage-file-5.14
new file mode 100644
index 00000000..bc7bcbd9
--- /dev/null
+++ b/source/xap/xscreensaver/xscreensaver-getimage-file-5.14
@@ -0,0 +1,555 @@
+#!/usr/bin/perl -w
+# Copyright © 2001-2011 Jamie Zawinski <jwz@jwz.org>.
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation.  No representations are made about the suitability of this
+# software for any purpose.  It is provided "as is" without express or 
+# implied warranty.
+#
+# This program chooses a random file from under the given directory, and
+# prints its name.  The file will be an image file whose dimensions are
+# larger than a certain minimum size.
+#
+# The various xscreensaver hacks that manipulate images ("jigsaw", etc.) get
+# the image to manipulate by running the "xscreensaver-getimage" program.
+#
+# Under X11, the "xscreensaver-getimage" program invokes this script,
+# depending on the value of the "chooseRandomImages" and "imageDirectory"
+# settings in the ~/.xscreensaver file (or .../app-defaults/XScreenSaver).
+# The screen savers invoke "xscreensaver-getimage" via utils/grabclient.c,
+# which then invokes this script.
+#
+# Under Cocoa, this script lives inside the .saver bundle, and is invoked
+# directly from utils/grabclient.c.
+#
+# Created: 12-Apr-01.
+
+require 5;
+#use diagnostics;	# Fails on some MacOS 10.5 systems
+use strict;
+
+use POSIX;
+use Fcntl;
+
+use Fcntl ':flock'; # import LOCK_* constants
+
+use POSIX ':fcntl_h';				# S_ISDIR was here in Perl 5.6
+import Fcntl ':mode' unless defined &S_ISUID;	# but it is here in Perl 5.8
+	# but in Perl 5.10, both of these load, and cause errors!
+	# So we have to check for S_ISUID instead of S_ISDIR?  WTF?
+
+use bytes;  # Larry can take Unicode and shove it up his ass sideways.
+            # Perl 5.8.0 causes us to start getting incomprehensible
+            # errors about UTF-8 all over the place without this.
+
+my $progname = $0; $progname =~ s@.*/@@g;
+my $version = q{ $Revision: 1.29 $ }; $version =~ s/^[^0-9]+([0-9.]+).*$/$1/;
+
+my $verbose = 0;
+
+# Whether to use MacOS X's Spotlight to generate the list of files.
+# When set to -1, uses Spotlight if "mdfind" exists.
+#
+# (In my experience, this isn't actually any faster, and might not find
+# everything if your Spotlight index is out of date, which happens often.)
+#
+my $use_spotlight_p = 0;
+
+# Whether to cache the results of the last run.
+#
+my $cache_p = 1;
+
+# Regenerate the cache if it is older than this many seconds.
+#
+my $cache_max_age = 60 * 60 * 3;   # 3 hours
+
+
+# This matches files that we are allowed to use as images (case-insensitive.)
+# Anything not matching this is ignored.  This is so you can point your
+# imageDirectory at directory trees that have things other than images in
+# them, but it assumes that you gave your images sensible file extensions.
+#
+my @good_extensions = ('jpg', 'jpeg', 'pjpeg', 'pjpg', 'png', 'gif',
+                       'tif', 'tiff', 'xbm', 'xpm');
+my $good_file_re = '\.(' . join("|", @good_extensions) . ')$';
+
+# This matches file extensions that might occur in an image directory,
+# and that are never used in the name of a subdirectory.  This is an
+# optimization that prevents us from having to stat() those files to
+# tell whether they are directories or not.  (It speeds things up a
+# lot.  Don't give your directories stupid names.)
+#
+my @nondir_extensions = ('ai', 'bmp', 'bz2', 'cr2', 'crw', 'db',
+   'dmg', 'eps', 'gz', 'hqx', 'htm', 'html', 'icns', 'ilbm', 'mov',
+   'nef', 'pbm', 'pdf', 'pl', 'ppm', 'ps', 'psd', 'sea', 'sh', 'shtml',
+   'tar', 'tgz', 'thb', 'txt', 'xcf', 'xmp', 'Z', 'zip' );
+my $nondir_re = '\.(' . join("|", @nondir_extensions) . ')$';
+
+
+# JPEG, GIF, and PNG files that are are smaller than this are rejected:
+# this is so that you can use an image directory that contains both big
+# images and thumbnails, and have it only select the big versions.
+#
+my $min_image_width  = 255;
+my $min_image_height = 255;
+
+my @all_files = ();         # list of "good" files we've collected
+my %seen_inodes;            # for breaking recursive symlink loops
+
+# For diagnostic messages:
+#
+my $dir_count = 1;          # number of directories seen
+my $stat_count = 0;	    # number of files/dirs stat'ed
+my $skip_count_unstat = 0;  # number of files skipped without stat'ing
+my $skip_count_stat = 0;    # number of files skipped after stat
+
+sub find_all_files($);
+sub find_all_files($) {
+  my ($dir) = @_;
+
+  print STDERR "$progname:  + reading dir $dir/...\n" if ($verbose > 1);
+
+  my $dd;
+  if (! opendir ($dd, $dir)) {
+    print STDERR "$progname: couldn't open $dir: $!\n" if ($verbose);
+    return;
+  }
+  my @files = readdir ($dd);
+  closedir ($dd);
+
+  my @dirs = ();
+
+  foreach my $file (@files) {
+    next if ($file =~ m/^\./);      # silently ignore dot files/dirs
+
+    if ($file =~ m/[~%\#]$/) {      # ignore backup files (and dirs...)
+      $skip_count_unstat++;
+      print STDERR "$progname:  - skip file  $file\n" if ($verbose > 1);
+    }
+
+    $file = "$dir/$file";
+
+    if ($file =~ m/$good_file_re/io) {
+      #
+      # Assume that files ending in .jpg exist and are not directories.
+      #
+      push @all_files, $file;
+      print STDERR "$progname:  - found file $file\n" if ($verbose > 1);
+
+    } elsif ($file =~ m/$nondir_re/io) {
+      #
+      # Assume that files ending in .html are not directories.
+      #
+      $skip_count_unstat++;
+      print STDERR "$progname: -- skip file  $file\n" if ($verbose > 1);
+
+    } else {
+      #
+      # Now we need to stat the file to see if it's a subdirectory.
+      #
+      # Note: we could use the trick of checking "nlinks" on the parent
+      # directory to see if this directory contains any subdirectories,
+      # but that would exclude any symlinks to directories.
+      #
+      my @st = stat($file);
+      my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
+          $atime,$mtime,$ctime,$blksize,$blocks) = @st;
+
+      $stat_count++;
+
+      if ($#st == -1) {
+        if ($verbose) {
+          my $ll = readlink $file;
+          if (defined ($ll)) {
+            print STDERR "$progname: + dangling symlink: $file -> $ll\n";
+          } else {
+            print STDERR "$progname: + unreadable: $file\n";
+          }
+        }
+        next;
+      }
+
+      next if ($seen_inodes{"$dev:$ino"}); # break symlink loops
+      $seen_inodes{"$dev:$ino"} = 1;
+
+      if (S_ISDIR($mode)) {
+        push @dirs, $file;
+        $dir_count++;
+        print STDERR "$progname:  + found dir  $file\n" if ($verbose > 1);
+
+      } else {
+        $skip_count_stat++;
+        print STDERR "$progname:  + skip file  $file\n" if ($verbose > 1);
+      }
+    }
+  }
+
+  foreach (@dirs) {
+    find_all_files ($_);
+  }
+}
+
+
+sub spotlight_all_files($) {
+  my ($dir) = @_;
+
+  my @terms = ();
+  # "public.image" matches all (indexed) images, including Photoshop, etc.
+#  push @terms, "kMDItemContentTypeTree == 'public.image'";
+  foreach (@good_extensions) {
+
+    # kMDItemFSName hits the file system every time: much worse than "find".
+#    push @terms, "kMDItemFSName == '*.$_'";
+
+    # kMDItemDisplayName matches against the name in the Spotlight index,
+    # but won't find files that (for whatever reason) didn't get indexed.
+    push @terms, "kMDItemDisplayName == '*.$_'";
+  }
+
+  $dir =~ s@([^-_/a-z\d.,])@\\$1@gsi;  # quote for sh
+  my $cmd = "mdfind -onlyin $dir \"" . join (' || ', @terms) . "\"";
+
+  print STDERR "$progname: executing: $cmd\n" if ($verbose > 1);
+  @all_files = split (/[\r\n]+/, `$cmd`);
+}
+
+
+# If we're using cacheing, read the cache file and return its contents,
+# if any.  This also holds an exclusive lock on the cache file, which 
+# has the additional benefit that if two copies of this program are
+# running at once, one will wait for the other, instead of both of
+# them spanking the same file system at the same time.
+#
+my $cache_fd = undef;
+my $cache_file_name = undef;
+my $read_cache_p = 0;
+
+sub read_cache($) {
+  my ($dir) = @_;
+
+  return () unless ($cache_p);
+
+  my $dd = "$ENV{HOME}/Library/Caches";    # MacOS location
+  if (-d $dd) {
+    $cache_file_name = "$dd/org.jwz.xscreensaver.getimage.cache";
+  } elsif (-d "$ENV{HOME}/tmp") {
+    $cache_file_name = "$ENV{HOME}/tmp/.xscreensaver-getimage.cache";
+  } else {
+    $cache_file_name = "$ENV{HOME}/.xscreensaver-getimage.cache";
+  }
+
+  print STDERR "$progname: awaiting lock: $cache_file_name\n"
+    if ($verbose > 1);
+
+  my $file = $cache_file_name;
+  open ($cache_fd, '+>>', $file) || error ("unable to write $file: $!");
+  flock ($cache_fd, LOCK_EX)     || error ("unable to lock $file: $!");
+  seek ($cache_fd, 0, 0)         || error ("unable to rewind $file: $!");
+
+  my $mtime = (stat($cache_fd))[9];
+
+  if ($mtime + $cache_max_age < time) {
+    print STDERR "$progname: cache is too old\n" if ($verbose);
+    return ();
+  }
+
+  my $odir = <$cache_fd>;
+  $odir =~ s/[\r\n]+$//s if defined ($odir);
+  if (!defined ($odir) || ($dir ne $odir)) {
+    print STDERR "$progname: cache is for $odir, not $dir\n"
+      if ($verbose && $odir);
+    return ();
+  }
+
+  my @files = ();
+  while (<$cache_fd>) { 
+    s/[\r\n]+$//s;
+    push @files, "$odir/$_";
+  }
+
+  print STDERR "$progname: " . ($#files+1) . " files in cache\n"
+    if ($verbose);
+
+  $read_cache_p = 1;
+  return @files;
+}
+
+
+sub write_cache($) {
+  my ($dir) = @_;
+
+  return unless ($cache_p);
+
+  # If we read the cache, just close it without rewriting it.
+  # If we didn't read it, then write it now.
+
+  if (! $read_cache_p) {
+
+    truncate ($cache_fd, 0) ||
+      error ("unable to truncate $cache_file_name: $!");
+    seek ($cache_fd, 0, 0) ||
+      error ("unable to rewind $cache_file_name: $!");
+
+    if ($#all_files >= 0) {
+      print $cache_fd "$dir\n";
+      foreach (@all_files) {
+        my $f = $_; # stupid Perl. do this to avoid modifying @all_files!
+        $f =~ s@^\Q$dir\L/@@so || die;  # remove $dir from front
+        print $cache_fd "$f\n";
+      }
+    }
+
+    print STDERR "$progname: cached " . ($#all_files+1) . " files\n"
+      if ($verbose);
+  }
+
+  flock ($cache_fd, LOCK_UN) ||
+    error ("unable to unlock $cache_file_name: $!");
+  close ($cache_fd);
+  $cache_fd = undef;
+}
+
+
+sub find_random_file($) {
+  my ($dir) = @_;
+
+  if ($use_spotlight_p == -1) {
+    $use_spotlight_p = 0;
+    if (-x '/usr/bin/mdfind') {
+      $use_spotlight_p = 1;
+    }
+  }
+
+  @all_files = read_cache ($dir);
+
+  if ($#all_files >= 0) {
+    # got it from the cache...
+
+  } elsif ($use_spotlight_p) {
+    print STDERR "$progname: spotlighting $dir...\n" if ($verbose);
+    spotlight_all_files ($dir);
+    print STDERR "$progname: found " . ($#all_files+1) .
+                 " file" . ($#all_files == 0 ? "" : "s") .
+                 " via Spotlight\n"
+      if ($verbose);
+  } else {
+    print STDERR "$progname: recursively reading $dir...\n" if ($verbose);
+    find_all_files ($dir);
+    print STDERR "$progname: " .
+                 "f=" . ($#all_files+1) . "; " .
+                 "d=$dir_count; " .
+                 "s=$stat_count; " .
+                 "skip=${skip_count_unstat}+$skip_count_stat=" .
+                  ($skip_count_unstat + $skip_count_stat) .
+                 ".\n"
+      if ($verbose);
+  }
+
+  write_cache ($dir);
+
+#  @all_files = sort(@all_files);
+
+  if ($#all_files < 0) {
+    print STDERR "$progname: no files in $dir\n";
+    exit 1;
+  }
+
+  my $max_tries = 50;
+  for (my $i = 0; $i < $max_tries; $i++) {
+
+    my $n = int (rand ($#all_files + 1));
+    my $file = $all_files[$n];
+    if (large_enough_p ($file)) {
+      $file =~ s@^\Q$dir\L/@@so || die;  # remove $dir from front
+      return $file;
+    }
+  }
+
+  print STDERR "$progname: no suitable images in $dir " .
+               "(after $max_tries tries)\n";
+  exit 1;
+}
+
+
+sub large_enough_p($) {
+  my ($file) = @_;
+
+  my ($w, $h) = image_file_size ($file);
+
+  if (!defined ($h)) {
+    print STDERR "$progname: $file: unable to determine image size\n"
+      if ($verbose);
+    # Assume that unknown files are of good sizes: this will happen if
+    # they matched $good_file_re, but we don't have code to parse them.
+    # (This will also happen if the file is junk...)
+    return 1;
+  }
+
+  if ($w < $min_image_width || $h < $min_image_height) {
+    print STDERR "$progname: $file: too small ($w x $h)\n" if ($verbose);
+    return 0;
+  }
+
+  print STDERR "$progname: $file: $w x $h\n" if ($verbose);
+  return 1;
+}
+
+
+
+# Given the raw body of a GIF document, returns the dimensions of the image.
+#
+sub gif_size($) {
+  my ($body) = @_;
+  my $type = substr($body, 0, 6);
+  my $s;
+  return () unless ($type =~ /GIF8[7,9]a/);
+  $s = substr ($body, 6, 10);
+  my ($a,$b,$c,$d) = unpack ("C"x4, $s);
+  return (($b<<8|$a), ($d<<8|$c));
+}
+
+# Given the raw body of a JPEG document, returns the dimensions of the image.
+#
+sub jpeg_size($) {
+  my ($body) = @_;
+  my $i = 0;
+  my $L = length($body);
+
+  my $c1 = substr($body, $i, 1); $i++;
+  my $c2 = substr($body, $i, 1); $i++;
+  return () unless (ord($c1) == 0xFF && ord($c2) == 0xD8);
+
+  my $ch = "0";
+  while (ord($ch) != 0xDA && $i < $L) {
+    # Find next marker, beginning with 0xFF.
+    while (ord($ch) != 0xFF) {
+      return () if (length($body) <= $i);
+      $ch = substr($body, $i, 1); $i++;
+    }
+    # markers can be padded with any number of 0xFF.
+    while (ord($ch) == 0xFF) {
+      return () if (length($body) <= $i);
+      $ch = substr($body, $i, 1); $i++;
+    }
+
+    # $ch contains the value of the marker.
+    my $marker = ord($ch);
+
+    if (($marker >= 0xC0) &&
+        ($marker <= 0xCF) &&
+        ($marker != 0xC4) &&
+        ($marker != 0xCC)) {  # it's a SOFn marker
+      $i += 3;
+      return () if (length($body) <= $i);
+      my $s = substr($body, $i, 4); $i += 4;
+      my ($a,$b,$c,$d) = unpack("C"x4, $s);
+      return (($c<<8|$d), ($a<<8|$b));
+
+    } else {
+      # We must skip variables, since FFs in variable names aren't
+      # valid JPEG markers.
+      return () if (length($body) <= $i);
+      my $s = substr($body, $i, 2); $i += 2;
+      my ($c1, $c2) = unpack ("C"x2, $s);
+      my $length = ($c1 << 8) | $c2;
+      return () if ($length < 2);
+      $i += $length-2;
+    }
+  }
+  return ();
+}
+
+# Given the raw body of a PNG document, returns the dimensions of the image.
+#
+sub png_size($) {
+  my ($body) = @_;
+  return () unless ($body =~ m/^\211PNG\r/s);
+  my ($bits) = ($body =~ m/^.{12}(.{12})/s);
+  return () unless defined ($bits);
+  return () unless ($bits =~ /^IHDR/);
+  my ($ign, $w, $h) = unpack("a4N2", $bits);
+  return ($w, $h);
+}
+
+
+# Given the raw body of a GIF, JPEG, or PNG document, returns the dimensions
+# of the image.
+#
+sub image_size($) {
+  my ($body) = @_;
+  return () if (length($body) < 10);
+  my ($w, $h) = gif_size ($body);
+  if ($w && $h) { return ($w, $h); }
+  ($w, $h) = jpeg_size ($body);
+  if ($w && $h) { return ($w, $h); }
+  # #### TODO: need image parsers for TIFF, XPM, XBM.
+  return png_size ($body);
+}
+
+# Returns the dimensions of the image file.
+#
+sub image_file_size($) {
+  my ($file) = @_;
+  my $in;
+  if (! open ($in, '<', $file)) {
+    print STDERR "$progname: $file: $!\n" if ($verbose);
+    return undef;
+  }
+  binmode ($in);  # Larry can take Unicode and shove it up his ass sideways.
+  my $body = '';
+  sysread ($in, $body, 1024 * 50);  # The first 50k should be enough.
+  close $in;			    # (It's not for certain huge jpegs...
+  return image_size ($body);	    # but we know they're huge!)
+}
+
+
+sub error($) {
+  my ($err) = @_;
+  print STDERR "$progname: $err\n";
+  exit 1;
+}
+
+sub usage() {
+  print STDERR "usage: $progname [--verbose] directory\n" .
+  "       Prints the name of a randomly-selected image file.  The directory\n" .
+  "       is searched recursively.  Images smaller than " .
+         "${min_image_width}x${min_image_height} are excluded.\n";
+  exit 1;
+}
+
+sub main() {
+  my $dir = undef;
+
+  while ($_ = $ARGV[0]) {
+    shift @ARGV;
+    if ($_ eq "--verbose") { $verbose++; }
+    elsif (m/^-v+$/) { $verbose += length($_)-1; }
+    elsif ($_ eq "--name") { }     # ignored, for compatibility
+    elsif ($_ eq "--spotlight")    { $use_spotlight_p = 1; }
+    elsif ($_ eq "--no-spotlight") { $use_spotlight_p = 0; }
+    elsif ($_ eq "--cache")        { $cache_p = 1; }
+    elsif ($_ eq "--no-cache")     { $cache_p = 0; }
+    elsif (m/^-./) { usage; }
+    elsif (!defined($dir)) { $dir = $_; }
+    else { usage; }
+  }
+
+  usage unless (defined($dir));
+
+  $dir =~ s@^~/@$ENV{HOME}/@s;     # allow literal "~/"
+  $dir =~ s@/+$@@s;		   # omit trailing /
+
+  if (! -d $dir) {
+    print STDERR "$progname: $dir: not a directory\n";
+    usage;
+  }
+
+  my $file = find_random_file ($dir);
+  print STDOUT "$file\n";
+}
+
+main;
+exit 0;