Hello community,

here is the log from the commit of package libslirp for openSUSE:Factory 
checked in at 2020-05-07 15:05:43
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Comparing /work/SRC/openSUSE:Factory/libslirp (Old)
 and      /work/SRC/openSUSE:Factory/.libslirp.new.2738 (New)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Package is "libslirp"

Thu May  7 15:05:43 2020 rev:2 rq:800116 version:4.3.0

Changes:
--------
--- /work/SRC/openSUSE:Factory/libslirp/libslirp.changes        2020-04-23 
18:29:47.792014146 +0200
+++ /work/SRC/openSUSE:Factory/.libslirp.new.2738/libslirp.changes      
2020-05-07 15:05:48.987747185 +0200
@@ -1,0 +2,6 @@
+Mon May  4 10:16:40 UTC 2020 - Richard Brown <[email protected]>
+
+- Update to 4.3.0
+- Fix use-afte-free in ip_reass() (CVE-2020-1983)
+
+-------------------------------------------------------------------

Old:
----
  libslirp-4.2.0.tar.xz

New:
----
  libslirp-4.3.0.tar.xz

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Other differences:
------------------
++++++ libslirp.spec ++++++
--- /var/tmp/diff_new_pack.IM2ggc/_old  2020-05-07 15:05:49.635748618 +0200
+++ /var/tmp/diff_new_pack.IM2ggc/_new  2020-05-07 15:05:49.639748628 +0200
@@ -1,7 +1,7 @@
 #
-# spec file for package libslirp0
+# spec file for package libslirp
 #
-# Copyright (c) 2020 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -15,20 +15,21 @@
 # Please submit bugfixes or comments via https://bugs.opensuse.org/
 #
 
+
 %define libname libslirp0
 
 Name:           libslirp
-Version:        4.2.0
+Version:        4.3.0
 Release:        0
 Summary:        A general purpose TCP-IP emulator
-Group:          System/Libraries
 License:        MIT
+Group:          System/Libraries
 URL:            https://gitlab.freedesktop.org/slirp/%{name}
 Source0:        %{name}-%{version}.tar.xz
-BuildRequires:  git-core
-BuildRequires:  meson
 BuildRequires:  gcc
+BuildRequires:  git-core
 BuildRequires:  glib2-devel
+BuildRequires:  meson
 
 %description
 A general purpose TCP-IP emulator used by virtual machine hypervisors
@@ -44,8 +45,8 @@
 
 %package        devel
 Summary:        Development files for %{name}
-Requires:       %{libname} = %{version}
 Group:          Development/Libraries/C and C++
+Requires:       %{libname} = %{version}
 
 %description    devel
 The %{name}-devel package contains libraries and header files for

++++++ _service ++++++
--- /var/tmp/diff_new_pack.IM2ggc/_old  2020-05-07 15:05:49.663748680 +0200
+++ /var/tmp/diff_new_pack.IM2ggc/_new  2020-05-07 15:05:49.667748690 +0200
@@ -4,8 +4,8 @@
 <param name="url">https://gitlab.freedesktop.org/slirp/libslirp.git</param>
 <param name="scm">git</param>
 <param name="filename">libslirp</param>
-<param name="versionformat">4.2.0</param>
-<param name="revision">v4.2.0</param>
+<param name="versionformat">4.3.0</param>
+<param name="revision">v4.3.0</param>
 </service>
 <service name="tar" mode="disabled" />
 <service name="recompress" mode="disabled">

++++++ libslirp-4.2.0.tar.xz -> libslirp-4.3.0.tar.xz ++++++
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/.gitlab-ci.yml 
new/libslirp-4.3.0/.gitlab-ci.yml
--- old/libslirp-4.2.0/.gitlab-ci.yml   2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/.gitlab-ci.yml   1970-01-01 01:00:00.000000000 +0100
@@ -1,26 +0,0 @@
-image: fedora:latest
-
-variables:
-  DEPS: meson ninja-build make
-        gcc pkg-config glib2-devel
-        mingw64-gcc mingw64-pkg-config mingw64-glib2
-        clang-analyzer
-
-before_script:
-  - dnf install -y $DEPS
-
-build:
-  script:
-    - meson build || (cat build/meson-logs/meson-log.txt && exit 1)
-    - ninja -C build
-    - (cd build && meson test) || (cat build/meson-logs/testlog.txt && exit 1)
-    - ninja -C build scan-build
-
-build-mingw64:
-  script:
-    - (mkdir buildw && cd buildw && mingw64-meson) || (cat 
buildw/meson-logs/meson-log.txt && exit 1)
-    - ninja -C buildw
-
-build-qemu:
-  script:
-    - make BUILD_DIR=build
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/.gitpublish 
new/libslirp-4.3.0/.gitpublish
--- old/libslirp-4.2.0/.gitpublish      2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/.gitpublish      1970-01-01 01:00:00.000000000 +0100
@@ -1,3 +0,0 @@
-[gitpublishprofile "default"]
-base = master
-to = [email protected]
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/.tarball-version 
new/libslirp-4.3.0/.tarball-version
--- old/libslirp-4.2.0/.tarball-version 1970-01-01 01:00:00.000000000 +0100
+++ new/libslirp-4.3.0/.tarball-version 2020-04-23 13:09:44.176262600 +0200
@@ -0,0 +1 @@
+4.3.0
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/CHANGELOG.md 
new/libslirp-4.3.0/CHANGELOG.md
--- old/libslirp-4.2.0/CHANGELOG.md     2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/CHANGELOG.md     2020-04-23 13:09:44.165262700 +0200
@@ -5,19 +5,36 @@
 The format is based on [Keep a 
Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic 
Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [v4.2.0] - 2020-03-17
+## [4.3.0] - 2020-04-22
+
+### Added
+
+ - `SLIRP_VERSION_STRING` macro, with the git sha suffix when building from git
+ - `SlirpConfig.disable_dns`, to disable DNS redirection #16
+
+### Changed
+
+ - `slirp_version_string()` now has the git sha suffix when building form git
+ - Limit DNS redirection to port 53 #16
+
+### Fixed
+
+ - Fix build regression with mingw & NetBSD
+ - Fix use-afte-free in `ip_reass()` (CVE-2020-1983)
+
+## [4.2.0] - 2020-03-17
 
 ### Added
 
  - New API function `slirp_add_unix`: add a forward rule to a Unix socket.
  - New API function `slirp_remove_guestfwd`: remove a forward rule previously
    added by `slirp_add_exec`, `slirp_add_unix` or `slirp_add_guestfwd`
- - New SlirpConfig.outbound_addr{,6} fields to bind output socket to a
+ - New `SlirpConfig.outbound_addr{,6}` fields to bind output socket to a
    specific address
 
 ### Changed
 
- - socket: do not fallback on host loopback if get_dns_addr() failed
+ - socket: do not fallback on host loopback if `get_dns_addr()` failed
    or the address is in slirp network
 
 ### Fixed
@@ -72,7 +89,7 @@
  - Standalone project, removing any QEMU dependency.
  - License clarifications.
 
-[unreleased]: 
https://gitlab.freedesktop.org/slirp/libslirp/compare/v4.1.0...master
+[4.3.0]: https://gitlab.freedesktop.org/slirp/libslirp/compare/v4.2.0...v4.3.0
 [4.2.0]: https://gitlab.freedesktop.org/slirp/libslirp/compare/v4.1.0...v4.2.0
 [4.1.0]: https://gitlab.freedesktop.org/slirp/libslirp/compare/v4.0.0...v4.1.0
 [4.0.0]: https://gitlab.freedesktop.org/slirp/libslirp/commits/v4.0.0
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/Makefile new/libslirp-4.3.0/Makefile
--- old/libslirp-4.2.0/Makefile 2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/Makefile 2020-04-23 13:09:44.165262700 +0200
@@ -3,8 +3,9 @@
 
 LIBSLIRP = $(BUILD_DIR)/libslirp.a
 SLIRP_MAJOR_VERSION = 4
-SLIRP_MINOR_VERSION = 2
+SLIRP_MINOR_VERSION = 3
 SLIRP_MICRO_VERSION = 0
+SLIRP_VERSION_STRING = 
"$(SLIRP_MAJOR_VERSION).$(SLIRP_MINOR_VERSION).$(SLIRP_MICRO_VERSION)-git"
 
 all: $(LIBSLIRP)
 
@@ -22,12 +23,13 @@
        -MMD -MP
 override LDFLAGS += $(shell $(PKG_CONFIG) --libs glib-2.0)
 
-$(BUILD_DIR)/src/libslirp-version.h:
+$(BUILD_DIR)/src/libslirp-version.h: Makefile
        @$(MKDIR_P) $(dir $@)
        $(call quiet-command,cat $(ROOT_DIR)/src/libslirp-version.h.in | \
                sed 's/@SLIRP_MAJOR_VERSION@/$(SLIRP_MAJOR_VERSION)/' | \
                sed 's/@SLIRP_MINOR_VERSION@/$(SLIRP_MINOR_VERSION)/' | \
-               sed 's/@SLIRP_MICRO_VERSION@/$(SLIRP_MICRO_VERSION)/' \
+               sed 's/@SLIRP_MICRO_VERSION@/$(SLIRP_MICRO_VERSION)/' | \
+               sed 's/@SLIRP_VERSION_STRING@/$(SLIRP_VERSION_STRING)/' \
        > $@,"GEN","$@")
 
 $(OBJS): $(BUILD_DIR)/src/libslirp-version.h
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/build-aux/git-version-gen 
new/libslirp-4.3.0/build-aux/git-version-gen
--- old/libslirp-4.2.0/build-aux/git-version-gen        1970-01-01 
01:00:00.000000000 +0100
+++ new/libslirp-4.3.0/build-aux/git-version-gen        2020-04-23 
13:09:44.166262600 +0200
@@ -0,0 +1,158 @@
+#!/bin/sh
+# Print a version string.
+scriptversion=2010-06-14.19; # UTC
+
+# Copyright (C) 2007-2010 Free Software Foundation, Inc.
+#
+# 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
+# It may be run two ways:
+# - from a git repository in which the "git describe" command below
+#   produces useful output (thus requiring at least one signed tag)
+# - from a non-git-repo directory containing a .tarball-version file, which
+#   presumes this script is invoked like "./git-version-gen .tarball-version".
+
+# In order to use intra-version strings in your project, you will need two
+# separate generated version string files:
+#
+# .tarball-version - present only in a distribution tarball, and not in
+#   a checked-out repository.  Created with contents that were learned at
+#   the last time autoconf was run, and used by git-version-gen.  Must not
+#   be present in either $(srcdir) or $(builddir) for git-version-gen to
+#   give accurate answers during normal development with a checked out tree,
+#   but must be present in a tarball when there is no version control system.
+#   Therefore, it cannot be used in any dependencies.  GNUmakefile has
+#   hooks to force a reconfigure at distribution time to get the value
+#   correct, without penalizing normal development with extra reconfigures.
+#
+# .version - present in a checked-out repository and in a distribution
+#   tarball.  Usable in dependencies, particularly for files that don't
+#   want to depend on config.h but do want to track version changes.
+#   Delete this file prior to any autoconf run where you want to rebuild
+#   files to pick up a version string change; and leave it stale to
+#   minimize rebuild time after unrelated changes to configure sources.
+#
+# It is probably wise to add these two files to .gitignore, so that you
+# don't accidentally commit either generated file.
+#
+# Use the following line in your configure.ac, so that $(VERSION) will
+# automatically be up-to-date each time configure is run (and note that
+# since configure.ac no longer includes a version string, Makefile rules
+# should not depend on configure.ac for version updates).
+#
+# AC_INIT([GNU project],
+#         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
+#         [bug-project@example])
+#
+# Then use the following lines in your Makefile.am, so that .version
+# will be present for dependencies, and so that .tarball-version will
+# exist in distribution tarballs.
+#
+# BUILT_SOURCES = $(top_srcdir)/.version
+# $(top_srcdir)/.version:
+#      echo $(VERSION) > $@-t && mv $@-t $@
+# dist-hook:
+#      echo $(VERSION) > $(distdir)/.tarball-version
+
+case $# in
+    1|2) ;;
+    *) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version" \
+         '[TAG-NORMALIZATION-SED-SCRIPT]'
+       exit 1;;
+esac
+
+tarball_version_file=$1
+tag_sed_script="${2:-s/x/x/}"
+nl='
+'
+
+# Avoid meddling by environment variable of the same name.
+v=
+
+# First see if there is a tarball-only version file.
+# then try "git describe", then default.
+if test -f $tarball_version_file
+then
+    v=`cat $tarball_version_file` || exit 1
+    case $v in
+       *$nl*) v= ;; # reject multi-line output
+       [0-9]*) ;;
+       *) v= ;;
+    esac
+    test -z "$v" \
+       && echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2
+fi
+
+if test -n "$v"
+then
+    : # use $v
+elif test -d .git \
+    && v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \
+         || git describe --abbrev=4 HEAD 2>/dev/null` \
+    && v=`printf '%s\n' "$v" | sed "$tag_sed_script"` \
+    && case $v in
+        v[0-9]*) ;;
+        *) (exit 1) ;;
+       esac
+then
+    # Is this a new git that lists number of commits since the last
+    # tag or the previous older version that did not?
+    #   Newer: v6.10-77-g0f8faeb
+    #   Older: v6.10-g0f8faeb
+    case $v in
+       *-*-*) : git describe is okay three part flavor ;;
+       *-*)
+           : git describe is older two part flavor
+           # Recreate the number of commits and rewrite such that the
+           # result is the same as if we were using the newer version
+           # of git describe.
+           vtag=`echo "$v" | sed 's/-.*//'`
+           numcommits=`git rev-list "$vtag"..HEAD | wc -l`
+           v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
+           ;;
+    esac
+
+    # Change the first '-' to a '.', so version-comparing tools work properly.
+    # Remove the "g" in git describe's output string, to save a byte.
+    v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
+else
+    v=UNKNOWN
+fi
+
+v=`echo "$v" |sed 's/^v//'`
+
+# Don't declare a version "dirty" merely because a time stamp has changed.
+git update-index --refresh > /dev/null 2>&1
+
+dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty=
+case "$dirty" in
+    '') ;;
+    *) # Append the suffix only if there isn't one already.
+       case $v in
+         *-dirty) ;;
+         *) v="$v-dirty" ;;
+       esac ;;
+esac
+
+# Omit the trailing newline, so that m4_esyscmd can use the result directly.
+echo "$v" | tr -d "$nl"
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/build-aux/meson-dist 
new/libslirp-4.3.0/build-aux/meson-dist
--- old/libslirp-4.2.0/build-aux/meson-dist     1970-01-01 01:00:00.000000000 
+0100
+++ new/libslirp-4.3.0/build-aux/meson-dist     2020-04-23 13:09:44.166262600 
+0200
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e
+set -o pipefail
+
+if test "$1" = ""; then
+    echo "Version not provided" >&2
+    exit 1
+fi
+if ! test -d "$2"; then
+    echo "Source directory not provided" >&2
+    exit 1
+fi
+
+# generate tarball version
+echo "$1" > "$MESON_DIST_ROOT/.tarball-version"
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/meson.build 
new/libslirp-4.3.0/meson.build
--- old/libslirp-4.2.0/meson.build      2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/meson.build      2020-04-23 13:09:44.166262600 +0200
@@ -1,9 +1,12 @@
 project('libslirp', 'c',
-  version : '4.2.0',
+  version : run_command('build-aux/git-version-gen', 
'@0@/.tarball-version'.format(meson.source_root()), check : 
true).stdout().strip(),
   license : 'BSD-3-Clause',
-  default_options : ['warning_level=1', 'c_std=gnu99']
+  default_options : ['warning_level=1', 'c_std=gnu99'],
+  meson_version : '>= 0.49',
 )
 
+meson.add_dist_script('build-aux/meson-dist', meson.project_version(), 
meson.source_root())
+
 version = meson.project_version()
 varr = version.split('.')
 major_version = varr[0]
@@ -14,6 +17,7 @@
 conf.set('SLIRP_MAJOR_VERSION', major_version)
 conf.set('SLIRP_MINOR_VERSION', minor_version)
 conf.set('SLIRP_MICRO_VERSION', micro_version)
+conf.set_quoted('SLIRP_VERSION_STRING', version)
 
 # libtool versioning - this applies to libslirp
 #
@@ -33,7 +37,7 @@
 #   fixed, change:
 #      REVISION += 1
 lt_current = 2
-lt_revision = 0
+lt_revision = 1
 lt_age = 2
 lt_version = '@0@.@1@.@2@'.format(lt_current - lt_age, lt_age, lt_revision)
 
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/ip_input.c 
new/libslirp-4.3.0/src/ip_input.c
--- old/libslirp-4.2.0/src/ip_input.c   2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/ip_input.c   2020-04-23 13:09:44.167262600 +0200
@@ -327,8 +327,7 @@
      */
     q = fp->frag_link.next;
     m = dtom(slirp, q);
-
-    int was_ext = m->m_flags & M_EXT;
+    int delta = (char *)q - (m->m_flags & M_EXT ? m->m_ext : m->m_dat);
 
     q = (struct ipasfrag *)q->ipf_next;
     while (q != (struct ipasfrag *)&fp->frag_link) {
@@ -351,8 +350,7 @@
      * then an m_ext buffer was alloced. But fp->ipq_next points to the old
      * buffer (in the mbuf), so we must point ip into the new buffer.
      */
-    if (!was_ext && m->m_flags & M_EXT) {
-        int delta = (char *)q - m->m_dat;
+    if (m->m_flags & M_EXT) {
         q = (struct ipasfrag *)(m->m_ext + delta);
     }
 
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/libslirp-version.h.in 
new/libslirp-4.3.0/src/libslirp-version.h.in
--- old/libslirp-4.2.0/src/libslirp-version.h.in        2020-03-17 
11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/libslirp-version.h.in        2020-04-23 
13:09:44.168262700 +0200
@@ -9,6 +9,7 @@
 #define SLIRP_MAJOR_VERSION @SLIRP_MAJOR_VERSION@
 #define SLIRP_MINOR_VERSION @SLIRP_MINOR_VERSION@
 #define SLIRP_MICRO_VERSION @SLIRP_MICRO_VERSION@
+#define SLIRP_VERSION_STRING @SLIRP_VERSION_STRING@
 
 #define SLIRP_CHECK_VERSION(major,minor,micro)                          \
     (SLIRP_MAJOR_VERSION > (major) ||                                   \
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/libslirp.h 
new/libslirp-4.3.0/src/libslirp.h
--- old/libslirp-4.2.0/src/libslirp.h   2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/libslirp.h   2020-04-23 13:09:44.168262700 +0200
@@ -67,7 +67,7 @@
 } SlirpCb;
 
 #define SLIRP_CONFIG_VERSION_MIN 1
-#define SLIRP_CONFIG_VERSION_MAX 2
+#define SLIRP_CONFIG_VERSION_MAX 3
 
 typedef struct SlirpConfig {
     /* Version must be provided */
@@ -109,6 +109,10 @@
      */
     struct sockaddr_in *outbound_addr;
     struct sockaddr_in6 *outbound_addr6;
+    /*
+     * Fields introduced in SlirpConfig version 3 begin
+     */
+    bool disable_dns;  /* slirp will not redirect/serve any DNS packet */
 } SlirpConfig;
 
 Slirp *slirp_new(const SlirpConfig *cfg, const SlirpCb *callbacks,
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/slirp.c 
new/libslirp-4.3.0/src/slirp.c
--- old/libslirp-4.2.0/src/slirp.c      2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/slirp.c      2020-04-23 13:09:44.169262600 +0200
@@ -29,6 +29,11 @@
 #include <net/if.h>
 #endif
 
+/* https://gitlab.freedesktop.org/slirp/libslirp/issues/18 */
+#if defined(__NetBSD__) && defined(if_mtu)
+#undef if_mtu
+#endif
+
 int slirp_debug;
 
 /* Define to 1 if you want KEEPALIVE timers */
@@ -333,6 +338,13 @@
         slirp->outbound_addr = NULL;
         slirp->outbound_addr6 = NULL;
     }
+
+    if (cfg->version >= 3) {
+        slirp->disable_dns = cfg->disable_dns;
+    } else {
+        slirp->disable_dns = false;
+    }
+
     return slirp;
 }
 
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/slirp.h 
new/libslirp-4.3.0/src/slirp.h
--- old/libslirp-4.2.0/src/slirp.h      2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/slirp.h      2020-04-23 13:09:44.169262600 +0200
@@ -202,6 +202,7 @@
 
     struct sockaddr_in *outbound_addr;
     struct sockaddr_in6 *outbound_addr6;
+    bool disable_dns; /* slirp will not redirect/serve any DNS packet */
 };
 
 void if_start(Slirp *);
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/socket.c 
new/libslirp-4.3.0/src/socket.c
--- old/libslirp-4.2.0/src/socket.c     2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/socket.c     2020-04-23 13:09:44.169262600 +0200
@@ -821,8 +821,8 @@
 
 static bool sotranslate_out4(Slirp *s, struct socket *so, struct sockaddr_in 
*sin)
 {
-    if (so->so_faddr.s_addr == s->vnameserver_addr.s_addr) {
-        return get_dns_addr(&sin->sin_addr) >= 0;
+    if (!s->disable_dns && so->so_faddr.s_addr == s->vnameserver_addr.s_addr) {
+        return so->so_fport == htons(53) && get_dns_addr(&sin->sin_addr) >= 0;
     }
 
     if (so->so_faddr.s_addr == s->vhost_addr.s_addr ||
@@ -839,8 +839,13 @@
 
 static bool sotranslate_out6(Slirp *s, struct socket *so, struct sockaddr_in6 
*sin)
 {
-    if (in6_equal(&so->so_faddr6, &s->vnameserver_addr6)) {
-        return get_dns6_addr(&sin->sin6_addr, &sin->sin6_scope_id) >= 0;
+    if (!s->disable_dns && in6_equal(&so->so_faddr6, &s->vnameserver_addr6)) {
+        uint32_t scope_id;
+        if (so->so_fport == htons(53) && get_dns6_addr(&sin->sin6_addr, 
&scope_id) >= 0) {
+            sin->sin6_scope_id = scope_id;
+            return true;
+        }
+        return false;
     }
 
     if (in6_equal_net(&so->so_faddr6, &s->vprefix_addr6, s->vprefix_len) ||
diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' 
'--exclude=.svnignore' old/libslirp-4.2.0/src/version.c 
new/libslirp-4.3.0/src/version.c
--- old/libslirp-4.2.0/src/version.c    2020-03-17 11:07:35.000000000 +0100
+++ new/libslirp-4.3.0/src/version.c    2020-04-23 13:09:44.171262500 +0200
@@ -1,11 +1,8 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 #include "libslirp.h"
-#include "util.h"
 
 const char *
 slirp_version_string(void)
 {
-    return stringify(SLIRP_MAJOR_VERSION) "."
-        stringify(SLIRP_MINOR_VERSION) "."
-        stringify(SLIRP_MICRO_VERSION);
+    return SLIRP_VERSION_STRING;
 }


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