Changes in the Makefile.os4 to fully compile

localtime_r() is not available on Windows but a more-secure variant
of localtime(), localtime_s() is provided on Windows.

Define localtime_r() on Windows as its arguments are reversed as compared
to localetime_s(), to achive more or less the same purpose.

.github/workflows/codeql.yml

@@ -0,0 +1,53 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  schedule:
+    - cron: "49 4 * * 0"
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ python, cpp ]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Install Packages (cpp)
+        if: ${{ matrix.language == 'cpp' }}
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes lzip autopoint
+
+      - name: Configure (cpp)
+        if: ${{ matrix.language == 'cpp' }}
+        run: ./autogen.sh && ./configure --disable-gtk-doc
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: ${{ matrix.language }}
+          queries: +security-and-quality
+
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v2
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2
+        with:
+          category: "/language:${{ matrix.language }}"

COPYING

@@ -1,4 +1,4 @@
-Copyright (C) 2014-2018 Tim Rühsen
+Copyright (C) 2014-2022 Tim Rühsen
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

LICENSE

@@ -1,4 +1,4 @@
-Copyright (C) 2014-2015 Tim Rühsen
+Copyright (C) 2014-2022 Tim Rühsen
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

Makefile.os4

@@ -0,0 +1,35 @@
+
+USE_CLIB2=YES
+ifeq ($(USE_CLIB2), YES)
+LIBC=clib2
+else
+LIBC=newlib
+endif
+
+all: build
+
+init:
+# git submodule update --init
+	sh ./autogen.sh
+	autoreconf --install --force --symlink
+
+build: init
+	CC="ppc-amigaos-gcc" CFLAGS="-mcrt=${LIBC} -fPIC" CXXFLAGS="-mcrt=${LIBC} -fPIC" LDFlags="-mcrt=${LIBC}" LIBS="-lpthread -athread=native" ./configure --host=ppc-amigaos --enable-shared=no --enable-builtin --disable-runtime && \
+	make -j$(shell nproc)
+
+clean:
+	@make -f Makefile clean
+	@rm -rf autom4te.cache .deps
+	@rm config.log config.status configure libtool Makefile Makefile.in *.m4
+
+release:
+	@mkdir -p release/local/common/include
+	@mkdir -p release/local/clib2/lib
+#	@mkdir -p release/local/newlib/lib
+	@make -f Makefile.os4 USE_CLIB2=YES
+	@cp ./src/.libs/libpsl.a ./src/.libs/libpsl.lai ./src/libpsl.la release/local/clib2/lib/
+	@cp ./include/libpsl.h release/local/common/include/
+#	@make -f Makefile.os4 clean
+#	@make -f Makefile.os4 USE_CLIB2=NO
+#	@cp ./src/.libs/libpsl.a ./src/.libs/libpsl.lai ./src/libpsl.la release/local/newlib/lib/
+	@lha -aeq libpsl.lha release/

NEWS

@@ -1,4 +1,17 @@
-Copyright (C) 2014-2020 Tim Rühsen
+Copyright (C) 2014-2022 Tim Rühsen
+
+26.12.2022 Release V0.21.2
+  * Increased internal label size
+  * Meson build improvements (needs meson >= 0.60.0)
+  * Autoconf build improvements
+  * Add instructions on how to build from tarball
+  * Add WSAStartup() for Windows psl tool and tests
+  * Bump gettext version to 0.19.3
+  * Fix stack buffer overflow WRITE 1 in domain_to_punycode()
+    (Relevant only when built without any IDNA library.)
+  * Fix undefined behavior in library code
+  * Ensures that calls to fopen() and stat() can handle largefiles
+  * Several minor (non-functional) changes
 
 18.07.2020 Release V0.21.1
   * Fixing a test due to recent changes in upstream PSL

README.md

@@ -106,6 +106,24 @@ See the LICENSE file that accompanies this distribution for the full text of the
 src/psl-make-dafsa and src/lookup_string_in_fixed_set.c are licensed under the term written in
 src/LICENSE.chromium.
 
+Building from tarball
+---------------------
+
+Choose a release from https://github.com/rockdaboot/libpsl/tags an download the tarball
+named `libpsl-{version}.tar.*`. Unpack with `tar xf <filename>`, cd into the libsl* directory.
+
+Build with
+```
+./configure
+make
+make check
+```
+
+Install with
+```
+sudo make install
+```
+
 Building from git
 -----------------
 

configure.ac

@@ -1,5 +1,4 @@
-
-AC_INIT([libpsl], [0.21.1], [tim.ruehsen@gmx.de], [libpsl], [https://github.com/rockdaboot/libpsl])
+AC_INIT([libpsl],[m4_normalize(m4_include(version.txt))],[tim.ruehsen@gmx.de],[libpsl],[https://github.com/rockdaboot/libpsl])
 AC_PREREQ([2.59])
 AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([1.10 no-define foreign dist-lzip])
@@ -15,6 +14,8 @@ LT_INIT([win32-dll])
 AC_CONFIG_MACRO_DIR([m4])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
+AC_SYS_LARGEFILE
+
 dnl Check that compiler understands inline
 AC_C_INLINE
 
@@ -34,7 +35,8 @@ AC_CONFIG_FILES([include/libpsl.h])
 # Gettext
 #
 AM_GNU_GETTEXT([external],[need-ngettext])
-AM_GNU_GETTEXT_VERSION([0.18.1])
+AM_GNU_GETTEXT_VERSION([0.19.3])
+AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.3])
 
 #
 # check for gtk-doc
@@ -57,7 +59,7 @@ fi
 # enable creation of man pages
 #
 AC_ARG_ENABLE([man],
-  [AC_HELP_STRING([--enable-man], [generate man pages [default=auto]])],
+  [AS_HELP_STRING([--enable-man], [generate man pages [default=auto]])],
   [
     if test "$enable_man" = yes; then
       AC_PATH_PROG([XSLTPROC], [xsltproc])
@@ -74,6 +76,14 @@ AM_PATH_PYTHON([2.7])
 
 PKG_PROG_PKG_CONFIG
 
+AC_ARG_ENABLE([fuzzing],
+  [AS_HELP_STRING([--enable-fuzzing], [Turn on fuzzing build (for developers)])],
+  [enable_fuzzing=yes;
+   AC_SUBST([LIB_FUZZING_ENGINE])
+   AC_DEFINE([FUZZING], 1, [Define to 1 if this is a fuzzing build])
+  ], [enable_fuzzing=no; LIB_FUZZING_ENGINE=""])
+AM_CONDITIONAL([FUZZING], [test "$enable_fuzzing" = "yes"])
+
 AC_ARG_ENABLE([cfi],
   [AS_HELP_STRING([--enable-cfi], [Turn on clang's Control Flow Integrity (CFI)])],
   [
@@ -91,6 +101,7 @@ AC_ARG_ENABLE([ubsan],
   [AS_HELP_STRING([--enable-ubsan], [Turn on Undefined Behavior Sanitizer (UBSan)])],
   [
     if test "$enable_ubsan" = yes; then
+      # Set basic UBSAN compiler flags. Add your own to CFLAGS.
       CFLAGS=$CFLAGS" -fsanitize=undefined -fno-sanitize-recover=undefined"
     fi
   ], [ enable_ubsan=no ])
@@ -99,6 +110,7 @@ AC_ARG_ENABLE([asan],
   [AS_HELP_STRING([--enable-asan], [Turn on Address Sanitizer (ASan)])],
   [
     if test "$enable_asan" = yes; then
+      # Set basic ASAN compiler flags. Add your own to CFLAGS.
       CFLAGS=$CFLAGS" -fsanitize=address -fno-omit-frame-pointer"
       AX_CHECK_COMPILE_FLAG([-fsanitize-address-use-after-scope], [CFLAGS="$CFLAGS -fsanitize-address-use-after-scope"])
     fi
@@ -115,7 +127,7 @@ AC_ARG_ENABLE([asan],
 # 4. If any interfaces have been added, removed, or changed since the last update, increment current, and set revision to 0.
 # 5. If any interfaces have been added since the last public release, then increment age.
 # 6. If any existing interfaces have been removed or changed since the last public release, then set age to 0. 
-AC_SUBST([LIBPSL_SO_VERSION], [8:3:3])
+AC_SUBST([LIBPSL_SO_VERSION], m4_normalize(m4_include([libtool_version_info.txt])))
 AC_SUBST([LIBPSL_VERSION], $VERSION)
 
 # Check for enable/disable runtime PSL data
@@ -150,22 +162,14 @@ AC_ARG_ENABLE(runtime,
 # Check for enable/disable builtin PSL data
 AC_ARG_ENABLE(builtin,
   [
-  --enable-builtin[[=IDNA library]]
-      Specify the IDNA library used for built-in data generation:
-        libidn2 [[default]]: IDNA2008 library (also needs libunistring)
-        libicu: IDNA2008   UTS#46 library
-        libidn:            IDNA2003 library (also needs libunistring)
+  --enable-builtin         Generate built-in PSL data
   --disable-builtin        Do not generate built-in PSL data
   ], [
-    if test "$enableval" = "libidn2" -o "$enableval" = "yes"; then
-      enable_builtin=libidn2
-      AC_DEFINE([BUILTIN_GENERATOR_LIBIDN2], [1], [generate PSL data using libidn2])
-    elif test "$enableval" = "libicu"; then
-      enable_builtin=libicu
-      AC_DEFINE([BUILTIN_GENERATOR_LIBICU], [1], [generate PSL data using libicu])
-    elif test "$enableval" = "libidn"; then
-      enable_builtin=libidn
-      AC_DEFINE([BUILTIN_GENERATOR_LIBIDN], [1], [generate PSL data using libidn])
+    if test "$enableval" = "yes"; then
+      enable_builtin=yes
+    elif test "$enableval" = "libidn" -o "$enableval" = "libidn2" -o "$enableval" = "libicu"; then
+      AC_MSG_WARN([--enable-builtin=$enableval is deprecated, use --enable-builtin (enabled by default)])
+      enable_builtin=yes
     elif test "$enableval" = "no"; then
       enable_builtin=no
     else
@@ -173,10 +177,14 @@ AC_ARG_ENABLE(builtin,
     fi
   ], [
     # this is the default if neither --enable-builtin nor --disable-builtin were specified
-    enable_builtin=auto
+    enable_builtin=yes
   ])
 
-if test "$enable_runtime" = "libidn2" -o "$enable_builtin" = "libidn2" -o "$enable_runtime" = "auto" -o "$enable_builtin" = "auto"; then
+if test "$enable_builtin" = "yes"; then
+  AC_DEFINE([ENABLE_BUILTIN], [1], [Generate built-in PSL data])
+fi
+
+if test "$enable_runtime" = "libidn2" -o "$enable_runtime" = "auto"; then
   # Check for libidn2
   PKG_CHECK_MODULES([LIBIDN2], [libidn2], [
     HAVE_LIBIDN2=yes
@@ -187,7 +195,7 @@ if test "$enable_runtime" = "libidn2" -o "$enable_builtin" = "libidn2" -o "$enab
   ], [
     AC_SEARCH_LIBS(idn2_lookup_u8, idn2, HAVE_LIBIDN2=yes,
     [
-       if test "$enable_runtime" = "libidn2" -o "$enable_builtin" = "libidn2"; then
+       if test "$enable_runtime" = "libidn2"; then
           AC_MSG_ERROR(You requested libidn2 but it is not installed.)
        fi
     ], -lunistring)
@@ -198,14 +206,10 @@ if test "$enable_runtime" = "libidn2" -o "$enable_builtin" = "libidn2" -o "$enab
       enable_runtime=libidn2
       AC_DEFINE([WITH_LIBIDN2], [1], [generate PSL data using libidn2])
     fi
-    if test "$enable_builtin" = "auto"; then
-      enable_builtin=libidn2
-      AC_DEFINE([BUILTIN_GENERATOR_LIBIDN2], [1], [generate PSL data using libidn2])
-    fi
   fi
 fi
 
-if test "$enable_runtime" = "libicu" -o "$enable_builtin" = "libicu" -o "$enable_runtime" = "auto" -o "$enable_builtin" = "auto"; then
+if test "$enable_runtime" = "libicu" -o "$enable_runtime" = "auto"; then
   # Check for libicu
   # using pkg-config won't work on older systems like Ubuntu 12.04 LTS Server Edition 64bit
   # using AC_SEARCH_LIBS also don't work since functions have the library version appended
@@ -225,7 +229,7 @@ if test "$enable_runtime" = "libicu" -o "$enable_builtin" = "libicu" -o "$enable
         [[u_strToUTF8(NULL, 0, NULL, NULL, 0, NULL);]])],
       [HAVE_LIBICU=yes; LIBICU_LIBS="-licuuc"; AC_MSG_RESULT([yes])],
       [ AC_MSG_RESULT([no]);
-        if test "$enable_runtime" = "libicu" -o "$enable_builtin" = "libicu"; then
+        if test "$enable_runtime" = "libicu"; then
           AC_MSG_ERROR(You requested libicu but it is not installed.)
         fi
         LIBS=$OLDLIBS
@@ -237,14 +241,10 @@ if test "$enable_runtime" = "libicu" -o "$enable_builtin" = "libicu" -o "$enable
       enable_runtime=libicu
       AC_DEFINE([WITH_LIBICU], [1], [generate PSL data using libicu])
     fi
-    if test "$enable_builtin" = "auto"; then
-      enable_builtin=libicu
-      AC_DEFINE([BUILTIN_GENERATOR_LIBICU], [1], [generate PSL data using libicu])
-    fi
   fi
 fi
 
-if test "$enable_runtime" = "libidn" -o "$enable_builtin" = "libidn" -o "$enable_runtime" = "auto" -o "$enable_builtin" = "auto"; then
+if test "$enable_runtime" = "libidn" -o "$enable_runtime" = "auto"; then
   # Check for libidn
   PKG_CHECK_MODULES([LIBIDN], [libidn], [
     HAVE_LIBIDN=yes
@@ -255,7 +255,7 @@ if test "$enable_runtime" = "libidn" -o "$enable_builtin" = "libidn" -o "$enable
   ], [
     AC_SEARCH_LIBS(idna_to_ascii_8z, idn, HAVE_LIBIDN=yes,
     [
-      if test "$enable_runtime" = "libidn" -o "$enable_builtin" = "libidn"; then
+      if test "$enable_runtime" = "libidn"; then
         AC_MSG_ERROR(You requested libidn but it is not installed.)
       fi
     ])
@@ -266,10 +266,6 @@ if test "$enable_runtime" = "libidn" -o "$enable_builtin" = "libidn" -o "$enable
       enable_runtime=libidn
       AC_DEFINE([WITH_LIBIDN], [1], [generate PSL data using libidn])
     fi
-    if test "$enable_builtin" = "auto"; then
-      enable_builtin=libidn
-      AC_DEFINE([BUILTIN_GENERATOR_LIBIDN], [1], [generate PSL data using libidn])
-    fi
   fi
 fi
 
@@ -277,9 +273,6 @@ fi
 if test "$enable_runtime" = "auto"; then
   enable_runtime=no
 fi
-if test "$enable_builtin" = "auto"; then
-  enable_builtin=no
-fi
 
 if test "x$HAVE_LIBIDN2" = "xyes" -o "x$HAVE_LIBIDN" = "xyes"; then
   # Check for libunistring, we need it for psl_str_to_utf8lower()
@@ -293,10 +286,7 @@ AM_ICONV
 AM_CONDITIONAL([WITH_LIBICU], test "x$enable_runtime" = "xlibicu")
 AM_CONDITIONAL([WITH_LIBIDN2], test "x$enable_runtime" = "xlibidn2")
 AM_CONDITIONAL([WITH_LIBIDN], test "x$enable_runtime" = "xlibidn")
-AM_CONDITIONAL([BUILTIN_GENERATOR_LIBICU], test "x$enable_builtin" = "xlibicu")
-AM_CONDITIONAL([BUILTIN_GENERATOR_LIBIDN2], test "x$enable_builtin" = "xlibidn2")
-AM_CONDITIONAL([BUILTIN_GENERATOR_LIBIDN], test "x$enable_builtin" = "xlibidn")
-AM_CONDITIONAL([WITH_BUILTIN], test $enable_builtin = yes)
+AM_CONDITIONAL([ENABLE_BUILTIN], test "x$enable_builtin" = "xyes")
 
 # Solaris has socket in libsocket and inet_ntop in libnsl, but also needs libsocket, so the order is important here
 AC_CHECK_LIB([socket], [socket], [NEEDS_SOCKET=yes], [])
@@ -349,19 +339,19 @@ fi
 
 # Check for distribution-wide PSL file
 AC_ARG_WITH(psl-distfile,
-  AC_HELP_STRING([--with-psl-distfile=[PATH]], [path to distribution-wide PSL file]),
+  AS_HELP_STRING([--with-psl-distfile=[PATH]], [path to distribution-wide PSL file]),
   PSL_DISTFILE=$withval AC_SUBST(PSL_DISTFILE))
 
 # Check for custom PSL file
 AC_ARG_WITH(psl-file,
-  AC_HELP_STRING([--with-psl-file=[PATH]], [path to PSL file]),
+  AS_HELP_STRING([--with-psl-file=[PATH]], [path to PSL file]),
   PSL_FILE=$withval,
   PSL_FILE="\$(top_srcdir)/list/public_suffix_list.dat")
 AC_SUBST(PSL_FILE)
 
 # Check for custom PSL test file
 AC_ARG_WITH(psl-testfile,
-  AC_HELP_STRING([--with-psl-testfile=[PATH]], [path to PSL test file]),
+  AS_HELP_STRING([--with-psl-testfile=[PATH]], [path to PSL test file]),
   PSL_TESTFILE=$withval,
   PSL_TESTFILE="\$(top_srcdir)/list/tests/tests.txt")
 AC_SUBST(PSL_TESTFILE)
@@ -387,7 +377,6 @@ AC_CONFIG_FILES([Makefile
                  tests/Makefile
                  docs/libpsl/Makefile docs/libpsl/version.xml
                  libpsl.pc:libpsl.pc.in
-                 meson.build
                  msvc/Makefile
                  msvc/config.h.win32
                  msvc/config-msvc.mak])
@@ -411,4 +400,5 @@ AC_MSG_NOTICE([Summary of build options:
   Docs:              $enable_gtk_doc
   Man pages:         $enable_man
   Tests:             ${TESTS_INFO}
+  Fuzzing build:     $enable_fuzzing, $LIB_FUZZING_ENGINE
 ])

contrib/check-hard

@@ -37,10 +37,10 @@ for CC in gcc clang; do
   rm -f $CACHEFILE
 
   for options in \
-  "--enable-runtime=libicu --enable-builtin=libicu" \
-  "--enable-runtime=libidn2 --enable-builtin=libidn2" \
-  "--enable-runtime=libidn --enable-builtin=libidn" \
-  "--disable-runtime --enable-builtin=libicu"; do
+  "--enable-runtime=libicu" \
+  "--enable-runtime=libidn2" \
+  "--enable-runtime=libidn" \
+  "--disable-runtime"; do
     export DISTCHECK_CONFIGURE_FLAGS="-q -C --cache-file=$CACHEFILE $options"
     if test "$CC" = "clang"; then
       echo

contrib/mingw

@@ -51,7 +51,7 @@ cd ..
 # build libpsl
 export WINEPATH="$INSTALLDIR/bin;$INSTALLDIR/lib;/usr/$PREFIX/bin;/usr/$PREFIX/lib;$PWD/libpsl/.libs;$GCCLIB"
 ./autogen.sh
-./configure --build=x86_64-pc-linux-gnu --host=$PREFIX --enable-shared --disable-gtk-doc --enable-runtime=libidn2 --enable-builtin=libidn2 --prefix=$INSTALLDIR
+./configure --build=x86_64-pc-linux-gnu --host=$PREFIX --enable-shared --disable-gtk-doc --enable-runtime=libidn2 --prefix=$INSTALLDIR
 make clean
 make -j$(nproc)
 make check -j$(nproc) LOG_COMPILER=wine

docs/libpsl/Makefile.am

@@ -86,7 +86,7 @@ include $(top_srcdir)/gtk-doc.make
 
 # Other files to distribute
 # e.g. EXTRA_DIST += version.xml.in
-EXTRA_DIST +=
+EXTRA_DIST += meson.build
 
 # Files not to distribute
 # for --rebuild-types in $(SCAN_OPTIONS), e.g. $(DOC_MODULE).types

docs/libpsl/meson.build

@@ -0,0 +1,20 @@
+gnome = import('gnome')
+
+if get_option('docs')
+  configure_file(
+    input : 'version.xml.in',
+    output : 'version.xml',
+    configuration : cdata)
+
+  gnome.gtkdoc('libpsl',
+    main_sgml: 'libpsl-docs.sgml',
+    src_dir: [
+      'src',
+      'include',
+    ],
+    dependencies: libpsl,
+    scan_args: [
+      '--ignore-decorators=G_GNUC_PSL_UNUSED',
+    ],
+    install: true)
+endif

fuzz/Makefile.am

@@ -1,15 +1,18 @@
 AM_CFLAGS = $(WERROR_CFLAGS) $(WARN_CFLAGS)
-AM_CPPFLAGS = -I$(top_srcdir)/include -I$(srcdir) -DSRCDIR=\"$(abs_srcdir)\" -DTEST_RUN
+AM_CPPFLAGS = -I$(top_srcdir)/include -I$(srcdir) -DSRCDIR=\"$(abs_srcdir)\"
 #AM_LDFLAGS = -static
-AM_LDFLAGS = -no-install
 LDADD = ../src/libpsl.la $(LIBICU_LIBS) $(LIBIDN_LIBS) $(LIBIDN2_LIBS)
 
+if !FUZZING
+  MAIN = main.c fuzzer.h
+endif
+
 if WITH_LIBICU
   XLIBS = $(LIBICU_LIBS)
   XTYPE = _icu
-  libpsl_icu_fuzzer_SOURCES = libpsl_fuzzer.c main.c fuzzer.h
-  libpsl_icu_load_fuzzer_SOURCES = libpsl_load_fuzzer.c main.c fuzzer.h
-  libpsl_icu_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c main.c fuzzer.h
+  libpsl_icu_fuzzer_SOURCES = libpsl_fuzzer.c $(MAIN)
+  libpsl_icu_load_fuzzer_SOURCES = libpsl_load_fuzzer.c $(MAIN)
+  libpsl_icu_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c $(MAIN)
   PSL_TESTS = \
    libpsl_icu_fuzzer$(EXEEXT) \
    libpsl_icu_load_fuzzer$(EXEEXT) \
@@ -18,9 +21,9 @@ else
 if WITH_LIBIDN2
   XLIBS = -lidn2 -lunistring
   XTYPE = _idn2
-  libpsl_idn2_fuzzer_SOURCES = libpsl_fuzzer.c main.c fuzzer.h
-  libpsl_idn2_load_fuzzer_SOURCES = libpsl_load_fuzzer.c main.c fuzzer.h
-  libpsl_idn2_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c main.c fuzzer.h
+  libpsl_idn2_fuzzer_SOURCES = libpsl_fuzzer.c $(MAIN)
+  libpsl_idn2_load_fuzzer_SOURCES = libpsl_load_fuzzer.c $(MAIN)
+  libpsl_idn2_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c $(MAIN)
   PSL_TESTS = \
    libpsl_idn2_fuzzer$(EXEEXT) \
    libpsl_idn2_load_fuzzer$(EXEEXT) \
@@ -29,9 +32,9 @@ else
 if WITH_LIBIDN
   XLIBS = -lidn -lunistring
   XTYPE = _idn
-  libpsl_idn_fuzzer_SOURCES = libpsl_fuzzer.c main.c fuzzer.h
-  libpsl_idn_load_fuzzer_SOURCES = libpsl_load_fuzzer.c main.c fuzzer.h
-  libpsl_idn_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c main.c fuzzer.h
+  libpsl_idn_fuzzer_SOURCES = libpsl_fuzzer.c $(MAIN)
+  libpsl_idn_load_fuzzer_SOURCES = libpsl_load_fuzzer.c $(MAIN)
+  libpsl_idn_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c $(MAIN)
   PSL_TESTS = \
    libpsl_idn_fuzzer$(EXEEXT) \
    libpsl_idn_load_fuzzer$(EXEEXT) \
@@ -39,9 +42,9 @@ if WITH_LIBIDN
 else
   XLIBS =
   XTYPE =
-  libpsl_fuzzer_SOURCES = libpsl_fuzzer.c main.c fuzzer.h
-  libpsl_load_fuzzer_SOURCES = libpsl_load_fuzzer.c main.c fuzzer.h
-  libpsl_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c main.c fuzzer.h
+  libpsl_fuzzer_SOURCES = libpsl_fuzzer.c $(MAIN)
+  libpsl_load_fuzzer_SOURCES = libpsl_load_fuzzer.c $(MAIN)
+  libpsl_load_dafsa_fuzzer_SOURCES = libpsl_load_dafsa_fuzzer.c $(MAIN)
   PSL_TESTS = \
    libpsl_fuzzer$(EXEEXT) \
    libpsl_load_fuzzer$(EXEEXT) \
@@ -50,7 +53,16 @@ endif
 endif
 endif
 
-check_PROGRAMS = $(PSL_TESTS)
+if FUZZING
+  bin_PROGRAMS = $(PSL_TESTS)
+  LDADD += $(LIB_FUZZING_ENGINE)
+  AM_LDFLAGS = -no-install
+else
+  AM_CPPFLAGS += -DTEST_RUN
+  AM_TESTS_ENVIRONMENT = export VALGRIND_TESTS"=@VALGRIND_TESTS@";
+  TESTS = $(PSL_TESTS)
+  check_PROGRAMS = $(PSL_TESTS)
+endif
 
 EXTRA_DIST = meson.build
 
@@ -61,7 +73,6 @@ dist-hook:
 	find . -name '*.repro' -exec cp -vr '{}' $(distdir) ';'
 
 TESTS_ENVIRONMENT = TESTS_VALGRIND="@VALGRIND_ENVIRONMENT@"
-TESTS = $(PSL_TESTS)
 
 clean-local:
 	rm -rf *.gc?? *.log lcov coverage.info *_fuzzer *.o
@@ -69,7 +80,7 @@ clean-local:
 fuzz-coverage: $(PSL_TESTS)
 	find . -name '*_fuzzer' -exec ./coverage.sh '{}' ';'
 
-CXX ?= clang-5.0
+CXX ?= clang
 CXXFLAGS ?= $(CFLAGS)
 
 oss-fuzz:

fuzz/README.md

@@ -12,24 +12,58 @@ regression testing with top dir 'make check' or 'make check-valgrind'.
 The ./configure runs below are for libidn2.
 To test libicu replace 'libidn2' with 'libicu', to test with
 libidn replace 'libidn2' by 'libidn'.
+To test without IDNA libraries replace `--enable-runtime=...` with `--disable-runtime`
+and replace `--enable-builtin=...` with `--disable-builtin`.
 
 
 # Running a fuzzer using clang
 
 Use the following commands on top dir:
 ```
-export CC=clang-5.0
-export CFLAGS="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=address -fsanitize-address-use-after-scope -fsanitize-coverage=trace-pc-guard,trace-cmp"
-./configure --enable-static --disable-gtk-doc --enable-runtime=libidn2 --enable-builtin=libidn2
-make clean
+export CC=clang
+export LIB_FUZZING_ENGINE="-lFuzzer -lstdc++"
+export UBSAN_OPTIONS=print_stacktrace=1
+export ASAN_SYMBOLIZER_PATH=/usr/bin/llvm-symbolizer
+
+# set flags for clang asan
+CFLAGS="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=address,leak,nonnull-attribute -fsanitize-address-use-after-scope -fsanitize-coverage=trace-pc-guard,trace-cmp"
+
+# set flags for clang ubsan
+CFLAGS="$CFLAGS -fsanitize=bool,array-bounds,float-divide-by-zero,function,integer-divide-by-zero,return,shift,signed-integer-overflow,vla-bound,vptr,undefined,alignment,null,enum,integer,builtin,float-divide-by-zero,function,object-size,returns-nonnull-attribute,unsigned-integer-overflow,unreachable -fsanitize=fuzzer-no-link"
+
+# unsigned-integer-overflow is not UB, so recover when we see it.
+CFLAGS="$CFLAGS -fno-sanitize-recover=all -fsanitize-recover=unsigned-integer-overflow"
+
+export CFLAGS
+
+./configure --enable-static --disable-gtk-doc --enable-fuzzing --enable-runtime=libidn2 --enable-builtin=libidn2
 make -j$(nproc)
 cd fuzz
 
-# build and run libpsl_fuzzer
+# run libpsl_fuzzer
 ./run-clang.sh libpsl_fuzzer
 ```
 
 
+If you see a crash, then a crash corpora is written that can be used for further
+investigation. E.g.
+```
+==2410==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000004e90 at pc 0x00000049cf9c bp 0x7fffb5543f70 sp 0x7ff
+fb5543720
+...
+Test unit written to ./crash-adc83b19e793491b1c6ea0fd8b46cd9f32e592fc
+```
+
+To reproduce the crash:
+```
+./libpsl_fuzzer < ./crash-adc83b19e793491b1c6ea0fd8b46cd9f32e592fc
+```
+
+You can also copy/move that file into libpsl_fuzzer.repro/
+and re-build the project without fuzzing for a valgrind run, if you like that better.
+Just a `./configure` and a `make check-valgrind` should reproduce it.
+
+
 # Running a fuzzer using AFL
 
 Use the following commands on top dir:
@@ -67,7 +101,7 @@ directory.
 
 # Clang CFI instrumentation
 ```
-CC=clang-5.0 CFLAGS="-B/usr/bin/gold -O0 -fsanitize=cfi -flto -fvisibility=default -fno-sanitize-trap=all" ./configure
+CC=clang CFLAGS="-B/usr/bin/gold -O0 -fsanitize=cfi -flto -fvisibility=default -fno-sanitize-trap=all" ./configure
 make clean
 make
 make check

fuzz/fuzzer.h

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2017-2018 Tim Ruehsen
+ * Copyright(c) 2017-2022 Tim Ruehsen
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),

fuzz/get_ossfuzz_corpora

@@ -1,15 +1,8 @@
 #!/bin/sh -eu
 
-# First step: In the top directory execute
-# export CC=clang-5.0
-# export CFLAGS="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=address -fsanitize-address-use-after-scope -fsanitize-coverage=trace-pc-guard,trace-cmp"
-# ./configure --enable-static --disable-gtk-doc --enable-runtime=libidn2 --enable-builtin=libidn2
-# make clean
-# make -j$(nproc) LIB_FUZZING_ENGINE="-lFuzzer"
-# cd fuzz
-# make -j$(nproc) check
+# As a first step see README.md and follow the steps under "Running a fuzzer using clang".
 
-# 
+# You might need 'gsutil' to download new corpora from the Google cloud:
 # Read the docs at https://github.com/google/oss-fuzz/blob/master/docs/corpora.md
 # then install 'google-cloud-sdk' and execute 'gcloud init'.
 # Now 'gsutil' should be ready to use.
@@ -20,13 +13,20 @@ if test -z "$1"; then
   exit 1
 fi
 
+if ! grep -q FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION Makefile; then
+  echo "The fuzzers haven't been built for fuzzing (maybe for regression testing !?)"
+  echo "Please built regarding README.md and try again."
+  exit 1
+fi
+
 fuzzer=$1
 project=$(echo $1 | cut -d'_' -f1)
 
 # sync/copy the OSS-Fuzz corpora into the .new directory
-mkdir -p ${fuzzer}.new
-cp -p ${fuzzer}.in/* ${fuzzer}.new
-gsutil -m rsync gs://${project}-corpus.clusterfuzz-external.appspot.com/libFuzzer/${fuzzer} ${fuzzer}.new
+mkdir -p ${fuzzer}.in ${fuzzer}.new
+cp -fp ${fuzzer}.in/* ${fuzzer}.new 2>/dev/null || true
+gsutil cp $(gsutil ls gs://${project}-backup.clusterfuzz-external.appspot.com/corpus/libFuzzer/${fuzzer}|tail -n 1) ${fuzzer}.new/
+(cd ${fuzzer}.new && unzip -o *.zip && mv *.zip ..)
 
 # create fuzzer target
 BUILD_ONLY=1 ./run-clang.sh ${fuzzer}
@@ -35,8 +35,9 @@ BUILD_ONLY=1 ./run-clang.sh ${fuzzer}
 ./${fuzzer} -merge=1 ${fuzzer}.in ${fuzzer}.new
 
 # now clear .new dir and put all corpora there
-rm -f ${fuzzer}.new/*
-mv ${fuzzer}.in/* ${fuzzer}.new
+rm -rf ${fuzzer}.new
+mv ${fuzzer}.in ${fuzzer}.new
+mkdir ${fuzzer}.in
 
 # now merge again (optimizes number of corpora)
 ./${fuzzer} -merge=1 ${fuzzer}.in ${fuzzer}.new

fuzz/libpsl_fuzzer.c

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2017-2018 Tim Ruehsen
+ * Copyright(c) 2017-2022 Tim Ruehsen
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),

fuzz/libpsl_fuzzer.in/7fd59296c131790190abe747fc6093003f4ae210

@@ -1 +0,0 @@
-...à

fuzz/libpsl_load_dafsa_fuzzer.c

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2017-2018 Tim Ruehsen
+ * Copyright(c) 2017-2022 Tim Ruehsen
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),

fuzz/libpsl_load_dafsa_fuzzer.in/0e9f709ecdd2a59f9234f4947f2327dcac0ed1f6

@@ -0,0 +1 @@
+
coííý

fuzz/libpsl_load_dafsa_fuzzer.in/1358d2af494d4b1ed30d8c54954cbebfcb09f102

@@ -0,0 +1 @@
+<EFBFBD>xn--tda.cí

fuzz/libpsl_load_dafsa_fuzzer.in/2aad6800e8d77c479165b456f4e2adfd3cc05832

@@ -0,0 +1 @@
+◆<EFBFBD>€<EFBFBD>@

fuzz/libpsl_load_dafsa_fuzzer.in/62238194bd6ff93691d3cc18cf6bd526505bb22f

@@ -1 +0,0 @@
-*˙˙G¸¸GaguchéŔDň„uzz˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙o.iôŔ´o.đ˙˙˙˙˙˙aido.

fuzz/libpsl_load_dafsa_fuzzer.in/6947c10947902398608f6dd191a30aa9a6c8e7e4

@@ -0,0 +1 @@
+
√ｿ

fuzz/libpsl_load_dafsa_fuzzer.in/8c264fb53360b8a2baba0a5c536a116998ca8f8b

@@ -1 +0,0 @@
-agucguchéaguchéÀa

fuzz/libpsl_load_dafsa_fuzzer.in/9c3d2962a809d01941acd234ee2d53f86836c3bf

@@ -0,0 +1 @@
+
C

fuzz/libpsl_load_dafsa_fuzzer.in/bd00ca5c26247e5623859b4729a4c627ac821abd

@@ -0,0 +1 @@
+<02>c<EFBFBD>
mx<6D>

fuzz/libpsl_load_dafsa_fuzzer.in/d1df665a2e99f1f01bb0f487841095d8ae32637f

@@ -0,0 +1 @@
+<02>c<EFBFBD>
mx<6D>
-<2D>

fuzz/libpsl_load_dafsa_fuzzer.in/e307db7315879cfbff2b143f818cf0afadd616f5

@@ -0,0 +1 @@
+
<01>CC

fuzz/libpsl_load_dafsa_fuzzer.in/e6d77cbebfa3b798deda79f8f4e7756e111b16f4

@@ -1 +0,0 @@
-;agucnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnhà;Dö„uzzo.iôÀ´

fuzz/libpsl_load_dafsa_fuzzer.in/eaf78d776d868074a893447c1e754733108a8754

@@ -0,0 +1 @@
+‡Γ<>ό<EFBFBD>®<EFBFBD>γ<EFBFBD>ο<EFBFBD>ν

fuzz/libpsl_load_dafsa_fuzzer.in/f4e37d70e617cf536c8cdaedf0fdb79193cbd9d8

@@ -0,0 +1 @@
+<02>C|.c

fuzz/libpsl_load_dafsa_fuzzer.in/f526338cdc0d1c3e218b2da3a9a525f028cdf87a

@@ -0,0 +1 @@
+<02>xn--tδ
a®
γ
οαν

fuzz/libpsl_load_fuzzer.c

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2017-2018 Tim Ruehsen
+ * Copyright(c) 2017-2022 Tim Ruehsen
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),

fuzz/libpsl_load_fuzzer.in/01d94a6f21b47b294553d412889a784d3553cf6f

@@ -0,0 +1 @@
+

fuzz/libpsl_load_fuzzer.in/03fe46c6867f7111555ba8cee7f1d8242e5b9294

@@ -1,38 +0,0 @@
-.
-иИ.3
-иИ.
-аИ.
-кИ.кИ.
-иИ.
-иИ..
-иИ.5
-иИ.
-аИ.
-кИ.кИ
-.иИ.
-и.
-иИ.И.
-иИ.3
-иИ.
-а<EFBFBD>.
-кИ.
-иИ.
-иИ.
-иИ.
-иИ.
-иИ
-иИ.
-иИ.
-и.3
-иИ.
-аИ.
-кИ.
-иМ.
-аИ.
-кИ.
-иИ.
-И.
-иИ.
-иИ.
-иИ.
-иИ.

fuzz/libpsl_load_fuzzer.in/07eb4b445ad6ac522b3ee82f13707bbe504d789b

@@ -0,0 +1,32 @@
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+Ƽ.˸.Ƽ.˸.Ǽ.˸@.ü.˸.ü.ȹ.ü.󠁸ü.Ȼ＋.ü*..<2E><>
+Ƽ.˸.Ƽ.˸.Ǽ.˸@.ü.˸.ü.ȹ.ü.󠁸ü.Ȼ＋.ü*.k
+Ƽ.ɸ.Ƽ.˸.Ǽ.˸@.ü.˸.ü.ȹ.ü.󠁸ü.Ȼ＋.Ӽ*..
+Ƽ.˸.Ƽ.˸.Ǽ.˸@.ü.˸.ü.ȹ.ü.<2E><><EFBFBD><EFBFBD>ü.Ȼ＋.ü*..<2E>
+Ƽ.˸.ļ.˸.Ǽ.˸@.õ.˸.ü.ȹ.ü.󠁸ü.Ȼ＋.ü*..<2E><>
+Ƽ.˸.Ƽ.˸.Ǽ.˸@.ü.˸.ü.ȹ.ü.󠁸ü.Ȼ＋.ü*.k
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+Ƽ.˸.Ƽ.˸.Ǽ.˸@.õ.˸.ü.ȹ.ü.󠁸ü.Ȼ＋.ü*.+.<2E>

fuzz/libpsl_load_fuzzer.in/0cf366806567b275151d1bc983d651bde4e7ccc9

@@ -0,0 +1,33 @@
+(!
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+公.cƼ.˸.Ƽ.˨.ļA.˸.ü.ü.ȼ僬司cn...ü.˸.ü(!wѷwa=

fuzz/libpsl_load_fuzzer.in/13312942e195c47dd3376f0ba2bbcdcedead17ca

@@ -0,0 +1,31 @@
+//===BEGIN PRIVATE DOMAINS===
+//===END PRIVATE DOMAINS===
+//===BEGIN PRIVATE DOMAINS===
+//===END PRIVATE DOMAINS===
+//===BEGIN PRIVATE DOMAINS===
+//===END PRIVATE DOMAINS===
+//===BEGIN PRIVATE DOMAINS===
+//===END PRIVATE DOMAINS===
+//===BEGIN PRIVATE DOMAINS===
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