Merge branch 'feature/upstream' into develop

20 files changed, 366 insertions, 1000 deletions

diff --git a/tools/.gitignore b/tools/.gitignore
new file mode 100644
index 0000000..445cc64
--- /dev/null
+++ b/tools/.gitignore
@@ -0,0 +1,8 @@
+gamma4scanimage
+hal
+sane-backends.pc
+sane-config
+sane-desc
+sane-find-scanner
+udev
+umax_pp
diff --git a/tools/Makefile.am b/tools/Makefile.am
index 70c87ee..684815a 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -33,6 +33,9 @@ CLEANFILES = $(bin_SCRIPTS) $(dist_noinst_SCRIPTS)
 
 EXTRA_DIST = check-po.awk libtool-get-dll-ext mustek600iin-off.c \
 	     RenSaneDlls.cmd README xerox
+EXTRA_DIST += style-check.sh
+EXTRA_DIST += create-changelog.sh
+EXTRA_DIST += update-upstreams.sh
 
 sane_find_scanner_SOURCES = sane-find-scanner.c
 if have_usblib
diff --git a/tools/Makefile.in b/tools/Makefile.in
deleted file mode 100644
index 77e9d72..0000000
--- a/tools/Makefile.in
+++ /dev/null
@@ -1,913 +0,0 @@
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diff --git a/tools/README b/tools/README
index 10d0d95..ca15ad4 100644
--- a/tools/README
+++ b/tools/README
@@ -48,7 +48,7 @@ This directory contains various tools that may be useful:
 	scanner protocol can be tested directly.
 
  gamma4scanimage: Creates a gamma table in the format expected by scanimage.
-	You can define a gamma value, shadow and highlight. 
+	You can define a gamma value, shadow and highlight.
 	Take a look at manual page gamma4scanimage for further information.
 
  RenSaneDlls.cmd: Convert backend-DLL-filenames according to 8.3 naming
@@ -57,13 +57,13 @@ This directory contains various tools that may be useful:
 Maybe useful for SANE developers:
 
  sane-config:
-        Show SANE version, linker flags etc. Might be useful for 
+        Show SANE version, linker flags etc. Might be useful for
         frontend developers.
 
  sane-desc:
         Generate SANE webpages (and ASCII lists) from backend .desc files.
         Run "sane-desc --help" for details. The default lists are generated
-        in doc/Makefile. 
+        in doc/Makefile.
 
  check-po.awk:
         Print untranslated and fuzzy messages and their line numbers in the
@@ -73,4 +73,3 @@ Maybe useful for SANE developers:
         script. Alternatively, run it via gawk's -f option, like so:
            gawk -f tools/check-po.awk po/de.po
         More documentation is in the script itself.
-
diff --git a/tools/RenSaneDlls.cmd b/tools/RenSaneDlls.cmd
index 2973f85..97c6f71 100644
--- a/tools/RenSaneDlls.cmd
+++ b/tools/RenSaneDlls.cmd
@@ -3,7 +3,7 @@
 /* necessary for DLLs on OS/2            (C) Franz Bakan  2004,2005     */
 /*                                                                      */
 /* This file is part of the SANE package.                               */
-/*                                                                      */ 
+/*                                                                      */
 /* This program is free software; you can redistribute it and/or        */
 /* modify it under the terms of the GNU General Public License as       */
 /* published by the Free Software Foundation; either version 2 of the   */
diff --git a/tools/check-po.awk b/tools/check-po.awk
index 09e4d15..412b451 100755
--- a/tools/check-po.awk
+++ b/tools/check-po.awk
@@ -18,11 +18,11 @@
 
 # This script will (hopefully!) check the completeness of a .po
 # translation file. It will report untranslated strings, as well
-# as fuzzy ones. It will print a summarry at the end of the check
+# as fuzzy ones. It will print a summary at the end of the check
 # that says how many strings there are, how many are translated
 # (and the percentage it represents), how many are fuzzy (and the
 # percentage it represents amongst translated strings), and how
-# many aree un-translated (and the percentage it represents).
+# many are untranslated (and the percentage it represents).
 # It will _not_ tell you wether your file is syntactically correct
 # (eg. check for terminating double quotes!). And of course it
 # will _not_ tell you wether the translations are correct! ;-]
@@ -30,7 +30,7 @@
 # It was originaly been written for SANE backends translations, but
 # shall be able to check any .po file.
 #
-# Originally writen by Yann E. MORIN 
+# Originally writen by Yann E. MORIN
 # <yann dot morin dot 1998 at anciens dot enib dot fr>
 #
 # Output will look like :
diff --git a/tools/check-usb-chip.c b/tools/check-usb-chip.c
index 50b3e88..ac71cb4 100644
--- a/tools/check-usb-chip.c
+++ b/tools/check-usb-chip.c
@@ -1,6 +1,6 @@
 /*
    check-usb-chip.c -- Find out what USB scanner chipset is used
-   
+
    Copyright (C) 2003-2005 Henning Meier-Geinitz <henning@meier-geinitz.de>
    Copyright (C) 2003 Gerhard Jaeger <gerhard@gjaeger.de>
                       for LM983x tests
@@ -706,7 +706,7 @@ check_ma1017 (struct usb_device *dev)
       finish_interface (handle);
       return 0;
     }
-  /* Read one byte again to work around a bug in the MA-1017 chipset that 
+  /* Read one byte again to work around a bug in the MA-1017 chipset that
      appears when an odd number of bytes is read or written. */
   result = usb_bulk_write (handle, 0x01, req, 2, 1000);
   result = usb_bulk_read (handle, 0x82, &res, 1, 1000);
@@ -1727,14 +1727,14 @@ check_gl660_gl646 (struct usb_device *dev)
 
 /********** the gl841 section **********/
 
-/* the various incarnations could be distinguished by the 
+/* the various incarnations could be distinguished by the
  * bcdDevice entry:
  *    0x701 --> GL124
  *    0x700 --> ?
  *    0x605 --> GL845
  *    0x603 --> GL847
- *    0x601 --> GL846 
- *    0x500 --> GL843 
+ *    0x601 --> GL846
+ *    0x500 --> GL843
  *    0x300 --> GL842 (perhaps only >= 0x303 ?)
  *    0x200 --> GL841
  */
@@ -2239,7 +2239,7 @@ check_pv8630_lm9830 (struct usb_device *dev)
   if (!result)
     return "PV8630/LM9830?";
 
-  result = 
+  result =
     usb_control_msg (handle, 0x40, 0x01, 0x38, 0x01, NULL, 0, TIMEOUT);
   if (result < 0)
     {
@@ -2261,7 +2261,7 @@ check_pv8630_lm9830 (struct usb_device *dev)
       return 0;
     }
 
-  result = 
+  result =
     usb_control_msg (handle, 0x40, 0x01, 0x38, 0x01, NULL, 0, TIMEOUT);
   if (result < 0)
     {
@@ -2375,7 +2375,7 @@ check_m011 (struct usb_device *dev)
 
   data = 0x63;
 
-  result = 
+  result =
     usb_control_msg (handle, 0x40, 0x08, 0x34, 0x00, &data, 1, TIMEOUT);
   if (result < 0)
     {
@@ -2876,13 +2876,13 @@ check_sq113 (struct usb_device *dev)
   result = prepare_interface (dev, &handle);
   if (!result)
     return "SQ113?";
-  
+
   buffer [0] = 0x5f;
   buffer [1] = 0x00;
   buffer [2] = 0x5f;
   buffer [3] = 0x00;
 
-  result = 
+  result =
     usb_control_msg (handle, 0x40, 0x01, 0xb0, 0, (char *) buffer, 4, TIMEOUT);
   if (result < 0)
     {
@@ -2900,7 +2900,7 @@ check_sq113 (struct usb_device *dev)
   buffer [2] = 0x8b;
   buffer [3] = data;
 
-  result = 
+  result =
     usb_control_msg (handle, 0x40, 0x01, 0xb0, 0, (char *) buffer, 4, TIMEOUT);
   if (result < 0)
     {
@@ -2915,7 +2915,7 @@ check_sq113 (struct usb_device *dev)
   buffer [1] = 0x8b;
   buffer [2] = 0x8b;
   buffer [3] = 0x8b;
-  result = 
+  result =
     usb_control_msg (handle, 0x40, 0x01, 0x04, 0x8b, (char *) buffer, 4, TIMEOUT);
   if (result < 0)
     {
@@ -2926,7 +2926,7 @@ check_sq113 (struct usb_device *dev)
       return 0;
     }
 
-  result = 
+  result =
     usb_control_msg (handle, 0xc0, 0x01, 0x07, 0, (char *) buffer, 4, TIMEOUT);
   if (result < 0)
     {
@@ -3240,7 +3240,7 @@ check_hp5590 (struct usb_device *dev)
     }
 
   /* Get confirmation for USB-in-USB command */
-  result = usb_control_msg (handle, USB_ENDPOINT_IN | USB_TYPE_VENDOR, 
+  result = usb_control_msg (handle, USB_ENDPOINT_IN | USB_TYPE_VENDOR,
 			    0x0c, 0x8e, 0x20,
 			    (char *) &status, sizeof(status), TIMEOUT);
   if (result < 0)
@@ -3874,14 +3874,14 @@ check_gt6816 (libusb_device_handle * handle,
 /** @brief check for known genesys chip
  *
  * Try to check if the scanner use a known genesys ASIC.
- * The various incarnations could be distinguished by the 
+ * The various incarnations could be distinguished by the
  * bcdDevice entry:
  *    0x701 --> GL124
  *    0x700 --> ?
  *    0x605 --> GL845
  *    0x603 --> GL847
- *    0x601 --> GL846 
- *    0x500 --> GL843 
+ *    0x601 --> GL846
+ *    0x500 --> GL843
  *    0x300 --> GL842 (perhaps only >= 0x303 ?)
  *    0x200 --> GL841
  *
diff --git a/tools/create-changelog.sh b/tools/create-changelog.sh
new file mode 100755
index 0000000..a0b8d91
--- /dev/null
+++ b/tools/create-changelog.sh
@@ -0,0 +1,16 @@
+#!/bin/sh -u
+# tools/create-changelog.sh -- for inclusion in source tarballs
+# Copyright (C) 2019  Olaf Meeuwissen
+#
+# License: GPL-3.0+
+
+git log --date=iso8601 --decorate=short 1.0.27..HEAD \
+    | sed 's/^[ \t]*$//' \
+    > ChangeLog
+
+cat << EOF >> ChangeLog
+
+----------------------------------------------------------------------
+Older ChangeLog entries can be found in the ChangeLogs/ directory on a
+file per release basis.  Please note that 1.0.26 was never released.
+EOF
diff --git a/tools/create-release.sh b/tools/create-release.sh
new file mode 100755
index 0000000..40904d7
--- /dev/null
+++ b/tools/create-release.sh
@@ -0,0 +1,61 @@
+#!/bin/sh -eux
+# tools/create-release.sh -- via GitLab CI and API
+# Copyright (C) 2019  Olaf Meeuwissen
+#
+# License: GPL-3.0+
+
+GROUP=sane-project
+PROJECT=backends
+PROJECT_ID=$GROUP%2F$PROJECT
+
+API_ENDPOINT=https://gitlab.com/api/v4
+
+# Uploads a file and returns a project relative URL to it.
+upload () {
+    curl --silent --fail \
+         --header "PRIVATE-TOKEN: $PRIVATE_TOKEN" \
+         --form "file=@$1" \
+         --request POST \
+         $API_ENDPOINT/projects/$PROJECT_ID/uploads \
+        | jq --raw-output .url \
+        | sed "s|^|https://gitlab.com/$GROUP/$PROJECT|"
+}
+
+cat << EOF > release.json
+{
+  "name": "SANE Backends $CI_COMMIT_TAG",
+  "tag_name": "$CI_COMMIT_TAG",
+  "description": "$(sed '1,3d; //{s/.*//; q}' NEWS \
+     | git stripspace \
+     | sed 's/"/\\"/g; s/$/\\n/g' \
+     | tr -d '\n')",
+  "assets": {
+    "links": [
+EOF
+
+for check in sha256 sha512; do
+    ${check}sum sane-backends-$CI_COMMIT_TAG.tar.gz \
+            > sane-backends-$CI_COMMIT_TAG.$check.txt
+    cat << EOF >> release.json
+      {
+        "name": "sane-backends-$CI_COMMIT_TAG.$check.txt",
+        "url": "$(upload sane-backends-$CI_COMMIT_TAG.$check.txt)"
+      },
+EOF
+done
+
+cat << EOF >> release.json
+      {
+        "name": "sane-backends-$CI_COMMIT_TAG.tar.gz",
+        "url": "$(upload sane-backends-$CI_COMMIT_TAG.tar.gz)"
+      }
+    ]
+  }
+}
+EOF
+
+curl --silent --fail --write-out "%{http_code}\n"\
+     --header "PRIVATE-TOKEN: $PRIVATE_TOKEN" \
+     --header "Content-Type: application/json" \
+     --data @release.json \
+     --request POST $API_ENDPOINT/projects/$PROJECT_ID/releases
diff --git a/tools/epson2usb.pl b/tools/epson2usb.pl
new file mode 100755
index 0000000..6d542d7
--- /dev/null
+++ b/tools/epson2usb.pl
@@ -0,0 +1,61 @@
+#!/usr/bin/perl -w
+
+# Creates an USB device list from the description file
+#
+# epson2usb.pl doc/descriptions/epson2.desc
+#
+# Copyright (C) 2010 Tower Technologies
+# Author: Alessandro Zummo <a.zummo@towertech.it>
+#
+# This file is part of the SANE package.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation, version 2.
+
+use strict;
+use warnings;
+
+	my %ids;
+	my @models;
+	my $i = 0;
+
+	while (<>) {
+
+		my $flip = /^:model/ ... /^$/;
+
+		$models[$i]{$1} = $2
+			if /^:(\w+)\s+(.+)/;
+
+		$i++
+			if $flip =~ /E0$/;
+	}
+
+	foreach my $m (@models) {
+
+		next unless defined $m->{'usbid'};
+		next if $m->{'status'} eq ':unsupported';
+
+#		print $m->{'model'} , "\n";
+#		print "-", $m->{'usbid'} , "-\n";
+
+		next unless $m->{'usbid'} =~ /"0x04b8"\s+"(0x[[:xdigit:]]+)"/;
+
+		my $id = $1;
+
+#		print $id, "\n";
+
+		$id =~ s/0x0/0x/;
+
+		$m->{'model'} =~ s/;.+$//;
+		$m->{'model'} =~ s/\"//g;
+		$m->{'model'} =~ s/\s+$//;
+
+		push(@{$ids{$id}}, $m->{'model'});
+	}
+
+	foreach (sort keys %ids) {
+		print '  ', $_, ', /* ';
+		print join(', ', @{$ids{$_}});
+		print " */\n";
+	}
diff --git a/tools/hotplug-ng/.gitignore b/tools/hotplug-ng/.gitignore
new file mode 100644
index 0000000..c63faf4
--- /dev/null
+++ b/tools/hotplug-ng/.gitignore
@@ -0,0 +1 @@
+libsane.db
diff --git a/tools/hotplug/.gitignore b/tools/hotplug/.gitignore
new file mode 100644
index 0000000..e194d28
--- /dev/null
+++ b/tools/hotplug/.gitignore
@@ -0,0 +1 @@
+libsane.usermap
diff --git a/tools/hotplug/libusbscanner b/tools/hotplug/libusbscanner
index bf613a5..55646d4 100755
--- a/tools/hotplug/libusbscanner
+++ b/tools/hotplug/libusbscanner
@@ -32,4 +32,3 @@ fi
 # if [ "$ACTION" = "add" -a "$TYPE" = "usb" ]; then
 #  chmod 0666 "$DEVICE"
 # fi
-
diff --git a/tools/sane-config.in b/tools/sane-config.in
index 6b7cd30..5ef9ba4 100644
--- a/tools/sane-config.in
+++ b/tools/sane-config.in
@@ -2,7 +2,7 @@
 #
 # This script is part of SANE, <URL:http://www.sane-project.org/>
 #
-# Send bugreports and other requests to sane-devel@lists.alioth.debian.org
+# Send bugreports and other requests to sane-devel@alioth-lists.debian.net
 
 PACKAGE="@PACKAGE@"
 scriptname="sane-config"
@@ -88,4 +88,3 @@ if test $# -gt 0; then
       ;;
   esac
 fi
-
diff --git a/tools/sane-desc.c b/tools/sane-desc.c
index badc8ce..890e754 100644
--- a/tools/sane-desc.c
+++ b/tools/sane-desc.c
@@ -47,7 +47,7 @@
 
 #define SANE_DESC_VERSION "3.5"
 
-#define MAN_PAGE_LINK "http://www.sane-project.org/man/%s.5.html"
+#define MAN_PAGE_LINK "man/%s.5.html"
 #define COLOR_MINIMAL      "\"#B00000\""
 #define COLOR_BASIC        "\"#FF9000\""
 #define COLOR_GOOD         "\"#90B000\""
@@ -315,7 +315,7 @@ print_usage (char *program_name)
   printf ("Usage: %s [-s dir] [-m mode] [-d level] [-h] [-V]\n",
 	  program_name);
   printf ("  -s|--search-dir dir    "
-	  "Specify the directory that contains .desc files \n"
+	  "Specify the directory that contains .desc files\n"
 	  "                         "
 	  "(multiple directories can be concatenated by \":\")\n");
   printf ("  -m|--mode mode         "
@@ -2075,7 +2075,7 @@ xml_print_backends (void)
 	printf ("<backend name=\"*none\">\n");
 
       if (be->version)
-	printf ("<version>%s</version> \n", clean_string (be->version));
+	printf ("<version>%s</version>\n", clean_string (be->version));
       else
 	printf ("<version>*none*</version>\n");
 
@@ -2448,7 +2448,7 @@ html_backends_split_table (device_type dev_type)
   backend_entry *be = first_backend;
   SANE_Bool first = SANE_TRUE;
 
-  printf ("<p><b>Backends</b>: \n");
+  printf ("<p><b>Backends</b>:\n");
   while (be)			/* print link list */
     {
       type_entry *type = be->type;
@@ -2463,7 +2463,7 @@ html_backends_split_table (device_type dev_type)
       if (found)
 	{
 	  if (!first)
-	    printf (", \n");
+	    printf (",\n");
 	  first = SANE_FALSE;
 	  printf ("<a href=\"#%s\">%s</a>",
 		  html_generate_anchor_name (dev_type, be->name), be->name);
@@ -2512,7 +2512,7 @@ html_backends_split_table (device_type dev_type)
 	      if (be->url && be->url->name)
 		{
 		  url_entry *url = be->url;
-		  printf ("<b>Link(s):</b> \n");
+		  printf ("<b>Link(s):</b>\n");
 		  while (url)
 		    {
 		      if (url != be->url)
@@ -2650,11 +2650,11 @@ html_mfgs_table (device_type dev_type)
   first_mfg_record = create_mfg_list (dev_type);
   mfg_record = first_mfg_record;
 
-  printf ("<p><b>Manufacturers</b>: \n");
+  printf ("<p><b>Manufacturers</b>:\n");
   while (mfg_record)
     {
       if (mfg_record != first_mfg_record)
-	printf (", \n");
+	printf (",\n");
       printf ("<a href=\"#%s\">%s</a>",
 	      html_generate_anchor_name (type_unknown, mfg_record->name),
 	      mfg_record->name);
@@ -2675,7 +2675,7 @@ html_mfgs_table (device_type dev_type)
       if (mfg_record->url && mfg_record->url->name)
 	{
 	  url_entry *url = mfg_record->url;
-	  printf ("<b>Link(s):</b> \n");
+	  printf ("<b>Link(s):</b>\n");
 	  while (url)
 	    {
 	      if (url != mfg_record->url)
@@ -2786,7 +2786,7 @@ html_print_header (void)
     ("</head>\n"
      "<body bgcolor=FFFFFF>\n"
      "<div align=center>\n"
-     "<img src=\"http://www.sane-project.org/images/sane.png\" alt=\"SANE\">\n");
+     "<img src=\"images/sane.png\" alt=\"SANE\">\n");
   printf ("<h1>%s</h1>\n", title);
   printf ("</div>\n" "<hr>\n");
   printf ("%s\n", intro);
@@ -2797,8 +2797,8 @@ html_print_header (void)
      "concerning each backend.</p>\n");
   printf
     ("<p>If you have new information or corrections, please file a\n"
-     "<a href=\"http://www.sane-project.org/bugs.html\">bug report</a>\n"
-     "with as many details as possible. Also please tell us if your scanner \n"
+     "<a href=\"bugs.html\">bug report</a>\n"
+     "with as many details as possible. Also please tell us if your scanner\n"
      "isn't mentioned in this list at all.</p>\n"
      "<p>For an explanation of the tables, see the\n"
      "<a href=\"#legend\">legend</a>.\n");
@@ -2812,9 +2812,9 @@ html_print_footer (void)
 
   printf
     ("<hr>\n"
-     "<a href=\"http://www.sane-project.org/\">SANE homepage</a>\n"
+     "<a href=\"./\">SANE homepage</a>\n"
      "<address>\n"
-     "<a href=\"http://www.sane-project.org/imprint.html\"\n"
+     "<a href=\"imprint.html\"\n"
      ">Contact</a>\n" "</address>\n" "<font size=-1>\n");
   printf ("This page was last updated on %s by sane-desc %s from %s\n",
 	  asctime (localtime (&current_time)), SANE_DESC_VERSION, PACKAGE_STRING);
@@ -2834,8 +2834,8 @@ html_print_legend_backend (void)
      "      available from their home sites.<br>"
      "      <font color=" COLOR_NEW ">NEW!</font> means brand-new to the\n"
      "      current release of SANE.<br>\n"
-     "      UNMAINTAINED means that nobody maintains that backend. Expect no \n"
-     "      new features or newly supported devices. You are welcome to take over \n"
+     "      UNMAINTAINED means that nobody maintains that backend. Expect no\n"
+     "      new features or newly supported devices. You are welcome to take over\n"
      "      maintainership.\n" "  </dd>\n");
 }
 
@@ -2902,7 +2902,7 @@ html_print_legend_status (void)
 {
   printf
     ("  <dt><b>Status</b>:</dt>\n"
-     "  <dd>Indicates how many of the features the device provides \n"
+     "  <dd>Indicates how many of the features the device provides\n"
      "      are supported by SANE.\n"
      "      <ul><li><font color=" COLOR_UNSUPPORTED ">unsupported</font>"
      "        means the device is not supported at least by this backend. "
@@ -2912,16 +2912,16 @@ html_print_legend_status (void)
      "        device may be supported but couldn't be tested. Be very "
      "        careful and report success/failure.\n"
      "      <li><font color=" COLOR_MINIMAL ">minimal</font> means that the\n"
-     "        device is detected and scans at least in one mode. But the quality \n"
+     "        device is detected and scans at least in one mode. But the quality\n"
      "        is bad or important features won't work.\n");
   printf
-    ("      <li><font color=" COLOR_BASIC ">basic</font> means it works at \n"
+    ("      <li><font color=" COLOR_BASIC ">basic</font> means it works at\n"
      "        least in the most important modes but quality is not perfect.\n"
      "      <li><font color=" COLOR_GOOD
-     ">good</font> means the device is usable \n"
+     ">good</font> means the device is usable\n"
      "        for day-to-day work. Some rather exotic features may be missing.\n"
      "      <li><font color=" COLOR_COMPLETE
-     ">complete</font> means the backends \n"
+     ">complete</font> means the backends\n"
      "        supports everything the device can do.\n" "      </ul></dd>\n");
 }
 
@@ -3360,7 +3360,7 @@ print_usermap_header (void)
      "# device detection support for your OS\n"
      "#\n"
      "# If the scanner is supported by sane-backends, please mail the entry to\n"
-     "# the sane-devel mailing list (sane-devel@lists.alioth.debian.org).\n"
+     "# the sane-devel mailing list (sane-devel@alioth-lists.debian.net).\n"
      "#\n"
      );
 
@@ -3427,7 +3427,7 @@ print_db_header (void)
      "# device detection support for your OS\n"
      "#\n"
      "# If the scanner is supported by sane-backends, please mail the entry to\n"
-     "# the sane-devel mailing list (sane-devel@lists.alioth.debian.org).\n"
+     "# the sane-devel mailing list (sane-devel@alioth-lists.debian.net).\n"
      "#\n"
      );
 }
@@ -3451,7 +3451,7 @@ print_db (void)
 	  name = name->next;
 	}
       printf ("\n");
-      printf ("%s\t%s\t%s:%s\t%s\t\n", usbid->usb_vendor_id,
+      printf ("%s\t%s\t%s:%s\t%s\n", usbid->usb_vendor_id,
 	      usbid->usb_product_id, DEVOWNER, DEVGROUP, DEVMODE);
       usbid = usbid->next;
     }
@@ -3491,7 +3491,7 @@ print_udev_header (void)
      "# device detection support for your OS\n"
      "#\n"
      "# If the scanner is supported by sane-backends, please mail the entry to\n"
-     "# the sane-devel mailing list (sane-devel@lists.alioth.debian.org).\n"
+     "# the sane-devel mailing list (sane-devel@alioth-lists.debian.net).\n"
      "#\n"
      );
 }
@@ -3679,7 +3679,7 @@ print_udevhwdb_header (void)
      "# device detection support for your OS\n"
      "#\n"
      "# If the scanner is supported by sane-backends, please mail the entry to\n"
-     "# the sane-devel mailing list (sane-devel@lists.alioth.debian.org).\n"
+     "# the sane-devel mailing list (sane-devel@alioth-lists.debian.net).\n"
      "#\n"
      );
 }
@@ -3782,8 +3782,8 @@ print_hwdb_header (void)
      "# device detection support for your OS\n"
      "#\n"
      "# If the scanner is supported by sane-backends, please mail the entry to\n"
-     "# the sane-devel mailing list (sane-devel@lists.alioth.debian.org).\n"
-     "#\n"
+     "# the sane-devel mailing list (sane-devel@alioth-lists.debian.net).\n"
+     "#"
      );
 }
 
@@ -3802,7 +3802,7 @@ print_hwdb (void)
       manufacturer_model_type * name = usbid->name;
 
       i = 0;
-      printf ("# ");
+      printf ("\n# ");
       while (name)
 	{
 	  if ((name != usbid->name) && (i > 0))
@@ -3833,7 +3833,7 @@ print_hwdb (void)
         product_id[j] = toupper(product_id[j]);
       }
 
-      printf ("usb:v%sp%s*\n libsane_matched=yes\n\n",
+      printf ("usb:v%sp%s*\n libsane_matched=yes\n",
 		vendor_id, product_id);
 
       free(vendor_id);
diff --git a/tools/sane-find-scanner.c b/tools/sane-find-scanner.c
index 04f19d9..a62ceac 100644
--- a/tools/sane-find-scanner.c
+++ b/tools/sane-find-scanner.c
@@ -225,7 +225,7 @@ scanner_do_scsi_inquiry (unsigned char *buffer, int sfd)
 
   memset (buffer, '\0', 256);	/* clear buffer */
 
-  size = 5;			/* first get only 5 bytes to get size of 
+  size = 5;			/* first get only 5 bytes to get size of
 				   inquiry_return_block */
   set_inquiry_return_size (inquiry.cmd, size);
   status = sanei_scsi_cmd (sfd, inquiry.cmd, inquiry.size, buffer, &size);
@@ -433,13 +433,13 @@ get_libusb_string_descriptor (struct usb_device *dev, int index)
       return 0;
     }
 
-  if (sd->bLength < 2 
+  if (sd->bLength < 2
       || sd->bDescriptorType != USB_DT_STRING)
     {
       usb_close (handle);
       return 0;
     }
-  
+
   size = sd->bLength;
 
   buffer = calloc (1, size + 1);
@@ -659,7 +659,7 @@ check_libusb_device (struct usb_device *dev, SANE_Bool from_file)
 	  ++is_scanner;
 	  break;
 	case USB_CLASS_PER_INTERFACE:
-	  if (dev->config[0].interface[interface_nr].num_altsetting == 0 || 
+	  if (dev->config[0].interface[interface_nr].num_altsetting == 0 ||
 	      !dev->config[0].interface[interface_nr].altsetting)
 	    break;
 	  switch (dev->config[0].interface[interface_nr].altsetting[0].bInterfaceClass)
@@ -782,7 +782,7 @@ get_libusb_string_descriptor (libusb_device_handle *hdl, int index)
   if ((short_buffer[0] < 2) /* descriptor length */
       || (short_buffer[1] != LIBUSB_DT_STRING)) /* descriptor type */
     return NULL;
-  
+
   size = short_buffer[0];
 
   buffer = calloc (1, size + 1);
@@ -934,7 +934,7 @@ check_libusb_device (libusb_device *dev, SANE_Bool from_file)
 	  printf (" iConfiguration       %d (%s)\n", c->iConfiguration,
 		  (buf) ? buf : "");
 	  free (buf);
-		  
+
 	  printf (" bmAttributes         %d (%s%s)\n", c->bmAttributes,
 		  c->bmAttributes & 64 ? "Self-powered" : "",
 		  c->bmAttributes & 32 ? "Remote Wakeup" : "");
@@ -1064,7 +1064,7 @@ check_libusb_device (libusb_device *dev, SANE_Bool from_file)
   if (is_scanner > 0)
     {
       char *chipset = NULL;
-      
+
       if(!from_file)
         chipset = check_usb_chip (verbose, desc, hdl, config0);
 
@@ -1084,7 +1084,7 @@ check_libusb_device (libusb_device *dev, SANE_Bool from_file)
       libusb_device_found = SANE_TRUE;
       device_found = SANE_TRUE;
     }
-  
+
   libusb_free_config_descriptor (config0);
 
  out_free:
@@ -1212,14 +1212,14 @@ static char **build_scsi_dev_list(void)
 
 		adapter = (PSCSI_ADAPTER_BUS_INFO)buffer;
 
-		for(i = 0; i < adapter->NumberOfBuses; i++) {	
+		for(i = 0; i < adapter->NumberOfBuses; i++) {
 
 			if (adapter->BusData[i].InquiryDataOffset == 0) {
 				/* No device here */
 				continue;
 			}
 
-			inquiry = (PSCSI_INQUIRY_DATA) (buffer + 
+			inquiry = (PSCSI_INQUIRY_DATA) (buffer +
 											adapter->BusData[i].InquiryDataOffset);
 			while(1) {
 				/* Check if it is a scanner or a processor
@@ -1233,7 +1233,7 @@ static char **build_scsi_dev_list(void)
 					dev_list[dev_list_index] = strdup(device_name);
 					dev_list_index++;
 				}
-			
+
 				if (inquiry->NextInquiryDataOffset == 0) {
 					/* No device here */
 					break;
@@ -1300,7 +1300,7 @@ check_mustek_pp_device (void)
       printf ("checking %s...", devices[ctr]);
 
     result = sanei_pa4s2_open (devices[ctr], &fd);
-    
+
     if (verbose > 1)
       {
         if (result != 0)
@@ -1315,13 +1315,13 @@ check_mustek_pp_device (void)
       found++;
       sanei_pa4s2_close(fd);
     }
-    
+
     /* trying scsi over pp devices */
     if (verbose > 1)
       printf ("checking %s (SCSI emulation)...", devices[ctr]);
 
     result = sanei_pa4s2_scsi_pp_open (devices[ctr], &fd);
-    
+
     if (verbose > 1)
       {
         if (result != 0)
@@ -1365,7 +1365,7 @@ parse_num (char* search, const char* line, int base, long int * number)
   if (start_number == NULL)
     return SANE_FALSE;
   start_number += strlen (search);
- 
+
   *number = strtol (start_number, NULL, base);
   if (verbose > 2)
     printf ("Found %s%ld\n", search, *number);
@@ -1384,11 +1384,11 @@ parse_bcd (char* search, const char* line, long int * number)
   if (start_number == NULL)
     return SANE_FALSE;
   start_number += strlen (search);
- 
+
   first_part = strtol (start_number, &end_number, 10);
   start_number = end_number + 1; /* skip colon */
   second_part = strtol (start_number, NULL, 10);
-  *number = ((first_part / 10) << 12) + ((first_part % 10) << 8) 
+  *number = ((first_part / 10) << 12) + ((first_part % 10) << 8)
     + ((second_part / 10) << 4) + (second_part % 10);
   if (verbose > 2)
     printf ("Found %s%ld\n", search, *number);
@@ -1478,7 +1478,7 @@ parse_file (char *filename)
 	    }
 	  if (parse_num ("Ifs=", line, 10, &number))
 	    dev->config[current_config].bNumInterfaces = number;
-	  dev->config[current_config].interface 
+	  dev->config[current_config].interface
 	    = calloc (number, sizeof (struct usb_interface));
 	  if (parse_num ("Atr=", line, 16, &number))
 	    dev->config[current_config].bmAttributes = number;
@@ -1504,24 +1504,24 @@ parse_file (char *filename)
 	  if (parse_num ("Alt=", line, 10, &number))
 	    {
 	      current_as = number;
-	      dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceNumber 
+	      dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceNumber
 		= current_if;
-	      dev->config[current_config].interface[current_if].altsetting[current_as].bAlternateSetting 
+	      dev->config[current_config].interface[current_if].altsetting[current_as].bAlternateSetting
 		= current_as;
 	    }
 	  if (parse_num ("#EPs=", line, 10, &number))
-	    dev->config[current_config].interface[current_if].altsetting[current_as].bNumEndpoints 
+	    dev->config[current_config].interface[current_if].altsetting[current_as].bNumEndpoints
 	      = number;
-	  dev->config[current_config].interface[current_if].altsetting[current_as].endpoint 
+	  dev->config[current_config].interface[current_if].altsetting[current_as].endpoint
 	    = calloc (number, sizeof (struct usb_endpoint_descriptor));
 	  if (parse_num ("Cls=", line, 16, &number))
-	    dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceClass 
+	    dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceClass
 	      = number;
 	  if (parse_num ("Sub=", line, 16, &number))
-	    dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceSubClass 
+	    dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceSubClass
 	      = number;
 	  if (parse_num ("Prot=", line, 16, &number))
-	    dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceProtocol 
+	    dev->config[current_config].interface[current_if].altsetting[current_as].bInterfaceProtocol
 	      = number;
 	  break;
 	case 'E':
@@ -1605,6 +1605,13 @@ main (int argc, char **argv)
 #endif
 	  exit (0);
 
+	case '-':
+	  if (!strcmp((*ap), "--help"))
+	    {
+	      usage (0);
+	      exit (0);
+	    }
+
 	default:
 	  printf ("unknown option: -%c, try -h for help\n", (*ap)[1]);
 	  exit (0);
@@ -2069,7 +2076,7 @@ main (int argc, char **argv)
 		"more details.\n");
 #endif
     }
-  if (enable_pp_checks == SANE_TRUE) 
+  if (enable_pp_checks == SANE_TRUE)
     {
       if (!check_mustek_pp_device() && verbose > 0)
         printf ("\n  # No Mustek parallel port scanners found. If you expected"
diff --git a/tools/style-check.sh b/tools/style-check.sh
new file mode 100755
index 0000000..479f7bb
--- /dev/null
+++ b/tools/style-check.sh
@@ -0,0 +1,99 @@
+#!/bin/sh -u
+# tools/style-check.sh -- for conformance or --fix to conform
+# Copyright (C) 2017  Olaf Meeuwissen
+#
+# License: GPL-3.0+
+
+check_final_newline() {
+    test x = "x$(tail -c 1 $1)"
+}
+
+insert_final_newline() {
+    check_final_newline $1 || echo >> $1
+}
+
+check_trailing_whitespace() {
+    test -z "$(sed -n '/[ \t]$/{p;q}' $1)"
+}
+
+trim_trailing_whitespace() {
+    sed -i 's/[ \t]*$//' $1
+}
+
+check_trailing_blank_lines() {
+    test -z "$(sed -n '${/^$/s/^/blank/p}' $1)"
+}
+
+trim_trailing_blank_lines() {
+    sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' $1
+}
+
+check_leading_blank_lines() {
+    test -z "$(sed -n '1{/^$/s/^/blank/p;q}' $1)"
+}
+
+trim_leading_blank_lines() {
+    sed -i '/./,$!d' $1
+}
+
+check_utf_8_charset() {
+    err=$(iconv -f utf-8 -t utf-8 < $1 2>&1 > /dev/null)
+    if test x != "x$err"; then
+        echo "charset not UTF-8: $1" >&2
+        echo "$err" >&2
+        return 1
+    fi
+}
+
+fix=false
+case $1 in
+    --fix) fix=true; shift;;
+esac
+
+status=0
+for file in "$@"; do
+    test -d $file && continue       # skip directories, just in case
+    file=$(echo $file | sed 's,^\.\/,,')
+    case $file in
+        COPYING) ;;                 # hands off of the GPL
+        *.gif) ;;                   # don't touch image files
+        *.jpg) ;;
+        *.png) ;;
+        *.pnm) ;;
+        *.patch) ;;                 # patch output may have trailing lines or whitespace
+        Makefile.in) ;;             # skip automake outputs
+        */Makefile.in) ;;
+        aclocal.m4) ;;              # skip autoconf outputs
+        include/sane/config.h.in) ;;
+        m4/libtool.m4) ;;           # courtesy of libtool
+        m4/lt~obsolete.m4) ;;
+        ABOUT-NLS) ;;               # courtesy of gettext
+        doc/doxygen-*.conf.in) ;;   # don't fix doxygen -g comments
+
+        *)
+            if `$fix`; then
+                trim_trailing_whitespace $file
+                insert_final_newline $file
+                trim_trailing_blank_lines $file
+            else
+                if ! check_trailing_whitespace $file; then
+                    status=1
+                    echo "trailing whitespace: $file" >&2
+                fi
+                if ! check_final_newline $file; then
+                    status=1
+                    echo "final newline missing: $file" >&2
+                fi
+                if ! check_trailing_blank_lines $file; then
+                    status=1
+                    echo "trailing blank lines: $file" >&2
+                fi
+                if ! check_utf_8_charset $file; then
+                    status=1
+                fi
+            fi
+            ;;
+    esac
+done
+
+exit $status
diff --git a/tools/umax_pp.c b/tools/umax_pp.c
index 134320b..7b127e3 100644
--- a/tools/umax_pp.c
+++ b/tools/umax_pp.c
@@ -35,12 +35,16 @@ main (int argc, char **argv)
   char *name = NULL;
   int scan = 0;
   int lamp = -1;
-  int i, fd;
+  int i;
   int found;
   int recover = 0;
   int trace = 0;
   int maxw, maxh;
 
+#ifdef HAVE_LINUX_PPDEV_H
+  int fd;
+#endif
+
 /* scanning parameters : defaults to preview (75 dpi color, full scan area) */
   int gain = 0x0;
   int offset = 0x646;
diff --git a/tools/update-upstreams.sh b/tools/update-upstreams.sh
new file mode 100755
index 0000000..3fde735
--- /dev/null
+++ b/tools/update-upstreams.sh
@@ -0,0 +1,21 @@
+#!/bin/sh -u
+# tools/update-upstreams.sh -- files to their latest version
+# Copyright (C) 2017, 2019  Olaf Meeuwissen
+#
+# License: GPL-3.0+
+
+fetch () {
+    if type curl 2>/dev/null >/dev/null ; then
+        curl --silent --location --remote-name $1
+        return
+    fi
+    if type wget 2>/dev/null >/dev/null ; then
+        wget --quiet --output-document $(echo $1 | sed 's,.*/,,') $1
+    fi
+}
+
+CONFIG_BASE_URL=https://git.savannah.gnu.org/cgit/config.git/plain
+
+for file in config.guess config.sub; do
+    fetch $CONFIG_BASE_URL/$file
+done
diff --git a/tools/xerox b/tools/xerox
index 0b2a7c3..0d04a0c 100755
--- a/tools/xerox
+++ b/tools/xerox
@@ -35,11 +35,11 @@ else
   WIDTH=8.27; HEIGHT=11.69
 fi
 
-SCANWIDTH=`bc <<_EOF_ 
+SCANWIDTH=`bc <<_EOF_
 scale=3
 $WIDTH-$LMARGIN-$RMARGIN
 _EOF_`
-SCANHEIGHT=`bc <<_EOF_ 
+SCANHEIGHT=`bc <<_EOF_
 scale=3
 $HEIGHT-$TMARGIN-$BMARGIN
 _EOF_`