Update vendor/libarchive/dist to git 31c0a517c91f44eeee717a04db8b075cadda83d8

Relevant vendor changes:
  PR #1085: Fix a null pointer dereference bug in zip writer
  PR #1110: ZIP reader added support for XZ, LZMA, PPMD8 and BZIP2
            decopmpression
  PR #1116: Add support for 64-bit ar format
  PR #1120: Fix a 7zip crash [1] and a ISO9660 infinite loop [2]
  PR #1125: RAR5 reader - fix an invalid read and a memory leak
  PR #1131: POSIX reader - do not fail when tree_current_lstat() fails
            due to ENOENT [3]
  PR #1134: Delete unnecessary null pointer checks before calls of free()
  OSS-Fuzz 10843: Force intermediate to uint64_t to make UBSAN happy.
  OSS-Fuzz 11011: Avoid buffer overflow in rar5 reader

PR:		233006 [3]
Security:	CVE-2019-1000019 [1], CVE-2019-1000020 [2]

48 files changed, 3373 insertions, 398 deletions

diff --git a/.cirrus.yml b/.cirrus.yml
new file mode 100644
index 000000000000..28d38213f95b
--- /dev/null
+++ b/.cirrus.yml
@@ -0,0 +1,26 @@
+env:
+  CIRRUS_CLONE_DEPTH: 1
+  ARCH: amd64
+
+task:
+  matrix:
+    container:
+      image: fedora:29
+    freebsd_instance:
+      image: freebsd-12-0-release-amd64
+    freebsd_instance:
+      image: freebsd-11-2-release-amd64
+    osx_instance:
+      image: mojave-xcode-10.1
+    osx_instance:
+      image: high-sierra-xcode-10.0
+  matrix:
+    env:
+      BS: autotools
+    env:
+      BS: cmake
+  install_script:
+    - ./build/ci/cirrus_ci.sh install
+  script:
+    - ./build/ci/build.sh
+    - ./build/ci/cirrus_ci.sh test
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 9f262b64a1c7..000000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,30 +0,0 @@
-language: C
-sudo: false
-dist: xenial
-addons:
-  apt:
-    packages:
-      - libacl1-dev
-      - libbz2-dev
-      - liblzma-dev
-      - libzip-dev
-      - lzop
-os:
-  - linux
-  - osx
-compiler:
-  - gcc
-  - clang
-env:
-  - BUILD_SYSTEM=cmake
-  - BUILD_SYSTEM=autotools
-matrix:
-  exclude:
-    - os: osx
-      compiler: gcc
-before_install:
-  - if [ `uname` = "Darwin" ]; then brew update; fi
-install:
-  - if [ `uname` = "Darwin" ]; then brew install xz lz4 zstd; fi
-script:
-  - build/ci_build.sh
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 81aa1aebe738..bd609eb408eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -183,6 +183,7 @@ OPTION(ENABLE_LIBB2 "Enable the use of the system LIBB2 library if found" ON)
 OPTION(ENABLE_LZ4 "Enable the use of the system LZ4 library if found" ON)
 OPTION(ENABLE_LZO "Enable the use of the system LZO library if found" OFF)
 OPTION(ENABLE_LZMA "Enable the use of the system LZMA library if found" ON)
+OPTION(ENABLE_ZSTD "Enable the use of the system zstd library if found" ON)
 
 OPTION(ENABLE_ZLIB "Enable the use of the system ZLIB library if found" ON)
 OPTION(ENABLE_BZip2 "Enable the use of the system BZip2 library if found" ON)
@@ -458,7 +459,7 @@ MARK_AS_ADVANCED(CLEAR BZIP2_LIBRARIES)
 IF(ENABLE_LZMA)
   FIND_PACKAGE(LibLZMA)
 ELSE()
-  SET(LIBZMA_FOUND FALSE) # Override cached value
+  SET(LIBLZMA_FOUND FALSE) # Override cached value
 ENDIF()
 
 IF(LIBLZMA_FOUND)
@@ -480,6 +481,9 @@ IF(LIBLZMA_FOUND)
 ELSE(LIBLZMA_FOUND)
 # LZMA not found and will not be used.
 ENDIF(LIBLZMA_FOUND)
+MARK_AS_ADVANCED(CLEAR LIBLZMA_INCLUDE_DIR)
+MARK_AS_ADVANCED(CLEAR LIBLZMA_LIBRARY)
+
 #
 # Find LZO2
 #
@@ -569,15 +573,19 @@ MARK_AS_ADVANCED(CLEAR LZ4_LIBRARY)
 #
 # Find Zstd
 #
-IF (ZSTD_INCLUDE_DIR)
-  # Already in cache, be silent
-  SET(ZSTD_FIND_QUIETLY TRUE)
-ENDIF (ZSTD_INCLUDE_DIR)
+IF(ENABLE_ZSTD)
+  IF (ZSTD_INCLUDE_DIR)
+    # Already in cache, be silent
+    SET(ZSTD_FIND_QUIETLY TRUE)
+  ENDIF (ZSTD_INCLUDE_DIR)
 
-FIND_PATH(ZSTD_INCLUDE_DIR zstd.h)
-FIND_LIBRARY(ZSTD_LIBRARY NAMES zstd libzstd)
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(ZSTD DEFAULT_MSG ZSTD_LIBRARY ZSTD_INCLUDE_DIR)
+  FIND_PATH(ZSTD_INCLUDE_DIR zstd.h)
+  FIND_LIBRARY(ZSTD_LIBRARY NAMES zstd libzstd)
+  INCLUDE(FindPackageHandleStandardArgs)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(ZSTD DEFAULT_MSG ZSTD_LIBRARY ZSTD_INCLUDE_DIR)
+ELSE(ENABLE_ZSTD)
+  SET(ZSTD_FOUND FALSE) # Override cached value
+ENDIF(ENABLE_ZSTD)
 IF(ZSTD_FOUND)
   SET(HAVE_ZSTD_H 1)
   INCLUDE_DIRECTORIES(${ZSTD_INCLUDE_DIR})
diff --git a/Makefile.am b/Makefile.am
index 80a4e17d1b71..0e8056be1aca 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -132,6 +132,8 @@ libarchive_la_SOURCES= \
 	libarchive/archive_ppmd_private.h \
 	libarchive/archive_ppmd7.c \
 	libarchive/archive_ppmd7_private.h \
+	libarchive/archive_ppmd8.c \
+	libarchive/archive_ppmd8_private.h \
 	libarchive/archive_private.h \
 	libarchive/archive_random.c \
 	libarchive/archive_random_private.h \
@@ -400,7 +402,6 @@ libarchive_test_SOURCES= \
 	libarchive/test/test_compat_lzma.c \
 	libarchive/test/test_compat_lzop.c \
 	libarchive/test/test_compat_mac.c \
-	libarchive/test/test_compat_pax_libarchive_2x.c \
 	libarchive/test/test_compat_perl_archive_tar.c \
 	libarchive/test/test_compat_plexus_archiver_tar.c \
 	libarchive/test/test_compat_solaris_tar_acl.c \
@@ -671,7 +672,6 @@ libarchive_test_EXTRA_DIST=\
 	libarchive/test/test_compat_lzop_3.tar.lzo.uu \
 	libarchive/test/test_compat_mac-1.tar.Z.uu \
 	libarchive/test/test_compat_mac-2.tar.Z.uu \
-	libarchive/test/test_compat_pax_libarchive_2x.tar.Z.uu \
 	libarchive/test/test_compat_perl_archive_tar.tar.uu \
 	libarchive/test/test_compat_plexus_archiver_tar.tar.uu \
 	libarchive/test/test_compat_solaris_pax_sparse_1.pax.Z.uu \
diff --git a/build/ci_build.sh b/build/ci/build.sh
index 65e5ceb54478..d61336eafb0e 100755
--- a/build/ci_build.sh
+++ b/build/ci/build.sh
@@ -3,15 +3,17 @@
 # Automated build and test of libarchive on CI systems
 #
 # Variables that can be passed via environment:
-# BUILD_SYSTEM=
-# BUILDDIR=
-# SRCDIR=
-# CONFIGURE_ARGS=
-# MAKE_ARGS=
-#
+# BS=			# build system (autotools or cmake)
+# BUILDDIR=		# build directory
+# SRCDIR=		# source directory
+# CONFIGURE_ARGS=	# configure arguments
+# MAKE_ARGS=		# make arguments
 
 ACTIONS=
-BUILD_SYSTEM="${BUILD_SYSTEM:-autotools}"
+if [ -n "${BUILD_SYSTEM}" ]; then
+	BS="${BUILD_SYSTEM}"
+fi
+BS="${BS:-autotools}"
 MAKE="${MAKE:-make}"
 CMAKE="${CMAKE:-cmake}"
 CURDIR=`pwd`
@@ -38,8 +40,8 @@ while getopts a:b:d:s: opt; do
 			esac
 			ACTIONS="${ACTIONS} ${OPTARG}"
 		;;
-		b) BUILD_SYSTEM="${OPTARG}"
-			case "${BUILD_SYSTEM}" in
+		b) BS="${OPTARG}"
+			case "${BS}" in
 				autotools) ;;
 				cmake) ;;
 				*) inputerror "Invalid build system (-b)" ;;
@@ -59,18 +61,18 @@ done
 if [ -z "${ACTIONS}" ]; then
 	ACTIONS="autogen configure build test"
 fi
-if [ -z "${BUILD_SYSTEM}" ]; then
-	inputerror "Missing type (-t) parameter"
+if [ -z "${BS}" ]; then
+	inputerror "Missing build system (-b) parameter"
 fi
 if [ -z "${BUILDDIR}" ]; then
-	BUILDDIR="${CURDIR}/build_ci/${BUILD_SYSTEM}"
+	BUILDDIR="${CURDIR}/build_ci/${BS}"
 fi
 mkdir -p "${BUILDDIR}"
 for action in ${ACTIONS}; do
 	cd "${BUILDDIR}"
 	case "${action}" in
 		autogen)
-			case "${BUILD_SYSTEM}" in
+			case "${BS}" in
 				autotools)
 					cd "${SRCDIR}"
 					sh build/autogen.sh
@@ -79,7 +81,7 @@ for action in ${ACTIONS}; do
 			esac
 		;;
 		configure)
-			case "${BUILD_SYSTEM}" in
+			case "${BS}" in
 				autotools) "${SRCDIR}/configure" ${CONFIGURE_ARGS} ;;
 				cmake) ${CMAKE} ${CONFIGURE_ARGS} "${SRCDIR}" ;;
 			esac
@@ -90,15 +92,16 @@ for action in ${ACTIONS}; do
 			RET="$?"
 		;;
 		test)
-			case "${BUILD_SYSTEM}" in
+			case "${BS}" in
 				autotools)
-					${MAKE} ${MAKE_ARGS} check LOG_DRIVER="${SRCDIR}/build/ci_test_driver"
+					${MAKE} ${MAKE_ARGS} check LOG_DRIVER="${SRCDIR}/build/ci/test_driver"
 					;;
 				cmake)
 					${MAKE} ${MAKE_ARGS} test
 					;;
 			esac
 			RET="$?"
+			find ${TMPDIR:-/tmp} -path '*_test.*' -name '*.log' -print -exec cat {} \;
 		;;
 	esac
 	if [ "${RET}" != "0" ]; then
diff --git a/build/ci/cirrus_ci.sh b/build/ci/cirrus_ci.sh
new file mode 100755
index 000000000000..9db762f97cca
--- /dev/null
+++ b/build/ci/cirrus_ci.sh
@@ -0,0 +1,53 @@
+#!/bin/sh
+UNAME=`uname`
+if [ "$1" = "install" ]
+then
+	if [ "${UNAME}" = "FreeBSD" ]
+	then
+		set -x -e
+		sed -i.bak -e 's,pkg+http://pkg.FreeBSD.org/\${ABI}/quarterly,pkg+http://pkg.FreeBSD.org/\${ABI}/latest,' /etc/pkg/FreeBSD.conf
+		mount -u -o acls /
+		mkdir /tmp_acl_nfsv4
+		MD=`mdconfig -a -t swap -s 128M`
+		newfs /dev/$MD
+		tunefs -N enable /dev/$MD
+		mount /dev/$MD /tmp_acl_nfsv4
+		chmod 1777 /tmp_acl_nfsv4
+		pkg install -y autoconf automake cmake libiconv libtool pkgconf expat libxml2 liblz4 zstd
+	elif [ "${UNAME}" = "Darwin" ]
+	then
+		set -x -e
+		brew update
+		brew install autoconf automake libtool pkg-config cmake xz lz4 zstd
+	elif [ "${UNAME}" = "Linux" ]
+	then
+		if [ -f "/etc/debian_version" ]
+		then
+			apt-get -y update
+			apt-get -y install build-essential locales automake libtool bison sharutils pkgconf libacl1-dev libbz2-dev libzip-dev zlib1g-dev liblzma-dev liblz4-dev libzstd-dev libssl-dev lrzip cmake
+		elif [ -f "/etc/fedora-release" ]
+		then
+			dnf -y install make cmake gcc gcc-c++ kernel-devel automake libtool bison sharutils pkgconf libacl-devel librichacl-devel bzip2-devel libzip-devel zlib-devel xz-devel lz4-devel libzstd-devel openssl-devel
+		fi
+	fi
+elif [ "$1" = "test" ]
+then
+	if [ "${UNAME}" = "FreeBSD" ]
+	then
+		set -e
+		echo "Additional NFSv4 ACL tests"
+		CURDIR=`pwd`
+		if [ "${BS}" = "cmake" ]
+		then
+			BIN_SUBDIR="bin"
+		else
+			BIN_SUBDIR=.
+		fi
+		BUILDDIR="${CURDIR}/build_ci/${BS}"
+		cd "$BUILDDIR"
+		TMPDIR=/tmp_acl_nfsv4 ${BIN_SUBDIR}/libarchive_test -r "${CURDIR}/libarchive/test" -v test_acl_platform_nfs4
+	fi
+else
+	echo "Usage $0 install | test_nfsv4_acls"
+	exit 1
+fi
diff --git a/build/ci_test_driver b/build/ci/test_driver
index 69a5463c10e8..69a5463c10e8 100755
--- a/build/ci_test_driver
+++ b/build/ci/test_driver
diff --git a/contrib/shar/tree.c b/contrib/shar/tree.c
index d5a04abf5f4b..a80d8366bdeb 100644
--- a/contrib/shar/tree.c
+++ b/contrib/shar/tree.c
@@ -530,8 +530,7 @@ tree_close(struct tree *t)
 	/* Release anything remaining in the stack. */
 	while (t->stack != NULL)
 		tree_pop(t);
-	if (t->buff)
-		free(t->buff);
+	free(t->buff);
 	/* chdir() back to where we started. */
 	if (t->initialDirFd >= 0) {
 		fchdir(t->initialDirFd);
diff --git a/cpio/test/test_option_t.c b/cpio/test/test_option_t.c
index 6bcaee3c87ce..eaa73fa3a016 100644
--- a/cpio/test/test_option_t.c
+++ b/cpio/test/test_option_t.c
@@ -88,11 +88,11 @@ DEFINE_TEST(test_option_t)
 	setlocale(LC_ALL, "");
 #endif
 #if defined(_WIN32) && !defined(__CYGWIN__)
-	strftime(date2, sizeof(date), "%b %d  %Y", localtime(&mtime));
-	_snprintf(date, sizeof(date)-1, "%12s file", date2);
+	strftime(date2, sizeof(date2)-1, "%b %d  %Y", localtime(&mtime));
+	_snprintf(date, sizeof(date)-1, "%12.12s file", date2);
 #else
-	strftime(date2, sizeof(date), "%b %e  %Y", localtime(&mtime));
-	snprintf(date, sizeof(date)-1, "%12s file", date2);
+	strftime(date2, sizeof(date2)-1, "%b %e  %Y", localtime(&mtime));
+	snprintf(date, sizeof(date)-1, "%12.12s file", date2);
 #endif
 	assertEqualMem(p + 42, date, strlen(date));
 	free(p);
diff --git a/libarchive/CMakeLists.txt b/libarchive/CMakeLists.txt
index 79719773cd50..8e86aade2266 100644
--- a/libarchive/CMakeLists.txt
+++ b/libarchive/CMakeLists.txt
@@ -51,6 +51,8 @@ SET(libarchive_SOURCES
   archive_platform_acl.h
   archive_platform_xattr.h
   archive_ppmd_private.h
+  archive_ppmd8.c
+  archive_ppmd8_private.h
   archive_ppmd7.c
   archive_ppmd7_private.h
   archive_private.h
diff --git a/libarchive/archive_acl.c b/libarchive/archive_acl.c
index 7beeee86efed..952e20df4dc0 100644
--- a/libarchive/archive_acl.c
+++ b/libarchive/archive_acl.c
@@ -138,14 +138,10 @@ archive_acl_clear(struct archive_acl *acl)
 		free(acl->acl_head);
 		acl->acl_head = ap;
 	}
-	if (acl->acl_text_w != NULL) {
-		free(acl->acl_text_w);
-		acl->acl_text_w = NULL;
-	}
-	if (acl->acl_text != NULL) {
-		free(acl->acl_text);
-		acl->acl_text = NULL;
-	}
+	free(acl->acl_text_w);
+	acl->acl_text_w = NULL;
+	free(acl->acl_text);
+	acl->acl_text = NULL;
 	acl->acl_p = NULL;
 	acl->acl_types = 0;
 	acl->acl_state = 0; /* Not counting. */
@@ -324,14 +320,10 @@ acl_new_entry(struct archive_acl *acl,
 		return (NULL);
 	}
 
-	if (acl->acl_text_w != NULL) {
-		free(acl->acl_text_w);
-		acl->acl_text_w = NULL;
-	}
-	if (acl->acl_text != NULL) {
-		free(acl->acl_text);
-		acl->acl_text = NULL;
-	}
+	free(acl->acl_text_w);
+	acl->acl_text_w = NULL;
+	free(acl->acl_text);
+	acl->acl_text = NULL;
 
 	/*
 	 * If there's a matching entry already in the list, overwrite it.
diff --git a/libarchive/archive_disk_acl_sunos.c b/libarchive/archive_disk_acl_sunos.c
index bc84fd6782f3..b0f5dfad9b13 100644
--- a/libarchive/archive_disk_acl_sunos.c
+++ b/libarchive/archive_disk_acl_sunos.c
@@ -145,10 +145,8 @@ sunacl_get(int cmd, int *aclcnt, int fd, const char *path)
 					cnt = facl(fd, cmd, cnt, aclp);
 			}
 		} else {
-			if (aclp != NULL) {
-				free(aclp);
-				aclp = NULL;
-			}
+			free(aclp);
+			aclp = NULL;
 			break;
 		}
 	}
diff --git a/libarchive/archive_entry.c b/libarchive/archive_entry.c
index f722bbe85c74..5125a2eb284e 100644
--- a/libarchive/archive_entry.c
+++ b/libarchive/archive_entry.c
@@ -1560,10 +1560,8 @@ archive_entry_acl_text_compat(int *flags)
 const wchar_t *
 archive_entry_acl_text_w(struct archive_entry *entry, int flags)
 {
-	if (entry->acl.acl_text_w != NULL) {
-		free(entry->acl.acl_text_w);
-		entry->acl.acl_text_w = NULL;
-	}
+	free(entry->acl.acl_text_w);
+	entry->acl.acl_text_w = NULL;
 	if (archive_entry_acl_text_compat(&flags) == 0)
 		entry->acl.acl_text_w = archive_acl_to_text_w(&entry->acl,
 		    NULL, flags, entry->archive);
@@ -1574,10 +1572,8 @@ archive_entry_acl_text_w(struct archive_entry *entry, int flags)
 const char *
 archive_entry_acl_text(struct archive_entry *entry, int flags)
 {
-	if (entry->acl.acl_text != NULL) {
-		free(entry->acl.acl_text);
-		entry->acl.acl_text = NULL;
-	}
+	free(entry->acl.acl_text);
+	entry->acl.acl_text = NULL;
 	if (archive_entry_acl_text_compat(&flags) == 0)
 		entry->acl.acl_text = archive_acl_to_text_l(&entry->acl, NULL,
 		    flags, NULL);
@@ -1590,10 +1586,8 @@ int
 _archive_entry_acl_text_l(struct archive_entry *entry, int flags,
     const char **acl_text, size_t *len, struct archive_string_conv *sc)
 {
-	if (entry->acl.acl_text != NULL) {
-		free(entry->acl.acl_text);
-		entry->acl.acl_text = NULL;
-        }
+	free(entry->acl.acl_text);
+	entry->acl.acl_text = NULL;
 
 	if (archive_entry_acl_text_compat(&flags) == 0)
 		entry->acl.acl_text = archive_acl_to_text_l(&entry->acl,
diff --git a/libarchive/archive_pack_dev.c b/libarchive/archive_pack_dev.c
index 53bddd790a30..a5e57ac209d4 100644
--- a/libarchive/archive_pack_dev.c
+++ b/libarchive/archive_pack_dev.c
@@ -60,6 +60,9 @@ __RCSID("$NetBSD$");
 #ifdef HAVE_SYS_SYSMACROS_H
 #include <sys/sysmacros.h>
 #endif
+#ifdef HAVE_SYS_MKDEV_H
+#include <sys/mkdev.h>
+#endif
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
diff --git a/libarchive/archive_ppmd8.c b/libarchive/archive_ppmd8.c
new file mode 100644
index 000000000000..d1779395dac5
--- /dev/null
+++ b/libarchive/archive_ppmd8.c
@@ -0,0 +1,1287 @@
+/* Ppmd8.c -- PPMdI codec
+2016-05-21 : Igor Pavlov : Public domain
+This code is based on PPMd var.I (2002): Dmitry Shkarin : Public domain */
+
+#include "archive_platform.h"
+
+#include <string.h>
+
+#include "archive_ppmd8_private.h"
+
+const Byte PPMD8_kExpEscape[16] = { 25, 14, 9, 7, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2 };
+static const UInt16 kInitBinEsc[] = { 0x3CDD, 0x1F3F, 0x59BF, 0x48F3, 0x64A1, 0x5ABC, 0x6632, 0x6051};
+
+#define MAX_FREQ 124
+#define UNIT_SIZE 12
+
+#define U2B(nu) ((UInt32)(nu) * UNIT_SIZE)
+#define U2I(nu) (p->Units2Indx[(nu) - 1])
+#define I2U(indx) (p->Indx2Units[indx])
+
+#ifdef PPMD_32BIT
+  #define REF(ptr) (ptr)
+#else
+  #define REF(ptr) ((UInt32)((Byte *)(ptr) - (p)->Base))
+#endif
+
+#define STATS_REF(ptr) ((CPpmd_State_Ref)REF(ptr))
+
+#define CTX(ref) ((CPpmd8_Context *)Ppmd8_GetContext(p, ref))
+#define STATS(ctx) Ppmd8_GetStats(p, ctx)
+#define ONE_STATE(ctx) Ppmd8Context_OneState(ctx)
+#define SUFFIX(ctx) CTX((ctx)->Suffix)
+
+#define kTop (1 << 24)
+#define kBot (1 << 15)
+
+typedef CPpmd8_Context * CTX_PTR;
+
+struct CPpmd8_Node_;
+
+typedef
+  #ifdef PPMD_32BIT
+    struct CPpmd8_Node_ *
+  #else
+    UInt32
+  #endif
+  CPpmd8_Node_Ref;
+
+typedef struct CPpmd8_Node_
+{
+  UInt32 Stamp;
+  CPpmd8_Node_Ref Next;
+  UInt32 NU;
+} CPpmd8_Node;
+
+#ifdef PPMD_32BIT
+  #define NODE(ptr) (ptr)
+#else
+  #define NODE(offs) ((CPpmd8_Node *)(p->Base + (offs)))
+#endif
+
+#define EMPTY_NODE 0xFFFFFFFF
+
+void Ppmd8_Construct(CPpmd8 *p)
+{
+  unsigned i, k, m;
+
+  p->Base = 0;
+
+  for (i = 0, k = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    unsigned step = (i >= 12 ? 4 : (i >> 2) + 1);
+    do { p->Units2Indx[k++] = (Byte)i; } while (--step);
+    p->Indx2Units[i] = (Byte)k;
+  }
+
+  p->NS2BSIndx[0] = (0 << 1);
+  p->NS2BSIndx[1] = (1 << 1);
+  memset(p->NS2BSIndx + 2, (2 << 1), 9);
+  memset(p->NS2BSIndx + 11, (3 << 1), 256 - 11);
+
+  for (i = 0; i < 5; i++)
+    p->NS2Indx[i] = (Byte)i;
+  for (m = i, k = 1; i < 260; i++)
+  {
+    p->NS2Indx[i] = (Byte)m;
+    if (--k == 0)
+      k = (++m) - 4;
+  }
+}
+
+void Ppmd8_Free(CPpmd8 *p)
+{
+  free(p->Base);
+  p->Size = 0;
+  p->Base = 0;
+}
+
+Bool Ppmd8_Alloc(CPpmd8 *p, UInt32 size)
+{
+  if (p->Base == 0 || p->Size != size)
+  {
+    Ppmd8_Free(p);
+    p->AlignOffset =
+      #ifdef PPMD_32BIT
+        (4 - size) & 3;
+      #else
+        4 - (size & 3);
+      #endif
+    if ((p->Base = (Byte *)malloc(p->AlignOffset + size)) == 0)
+      return False;
+    p->Size = size;
+  }
+  return True;
+}
+
+static void InsertNode(CPpmd8 *p, void *node, unsigned indx)
+{
+  ((CPpmd8_Node *)node)->Stamp = EMPTY_NODE;
+  ((CPpmd8_Node *)node)->Next = (CPpmd8_Node_Ref)p->FreeList[indx];
+  ((CPpmd8_Node *)node)->NU = I2U(indx);
+  p->FreeList[indx] = REF(node);
+  p->Stamps[indx]++;
+}
+
+static void *RemoveNode(CPpmd8 *p, unsigned indx)
+{
+  CPpmd8_Node *node = NODE((CPpmd8_Node_Ref)p->FreeList[indx]);
+  p->FreeList[indx] = node->Next;
+  p->Stamps[indx]--;
+  return node;
+}
+
+static void SplitBlock(CPpmd8 *p, void *ptr, unsigned oldIndx, unsigned newIndx)
+{
+  unsigned i, nu = I2U(oldIndx) - I2U(newIndx);
+  ptr = (Byte *)ptr + U2B(I2U(newIndx));
+  if (I2U(i = U2I(nu)) != nu)
+  {
+    unsigned k = I2U(--i);
+    InsertNode(p, ((Byte *)ptr) + U2B(k), nu - k - 1);
+  }
+  InsertNode(p, ptr, i);
+}
+
+static void GlueFreeBlocks(CPpmd8 *p)
+{
+  CPpmd8_Node_Ref head = 0;
+  CPpmd8_Node_Ref *prev = &head;
+  unsigned i;
+
+  p->GlueCount = 1 << 13;
+  memset(p->Stamps, 0, sizeof(p->Stamps));
+  
+  /* Order-0 context is always at top UNIT, so we don't need guard NODE at the end.
+     All blocks up to p->LoUnit can be free, so we need guard NODE at LoUnit. */
+  if (p->LoUnit != p->HiUnit)
+    ((CPpmd8_Node *)p->LoUnit)->Stamp = 0;
+
+  /* Glue free blocks */
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    CPpmd8_Node_Ref next = (CPpmd8_Node_Ref)p->FreeList[i];
+    p->FreeList[i] = 0;
+    while (next != 0)
+    {
+      CPpmd8_Node *node = NODE(next);
+      if (node->NU != 0)
+      {
+        CPpmd8_Node *node2;
+        *prev = next;
+        prev = &(node->Next);
+        while ((node2 = node + node->NU)->Stamp == EMPTY_NODE)
+        {
+          node->NU += node2->NU;
+          node2->NU = 0;
+        }
+      }
+      next = node->Next;
+    }
+  }
+  *prev = 0;
+  
+  /* Fill lists of free blocks */
+  while (head != 0)
+  {
+    CPpmd8_Node *node = NODE(head);
+    unsigned nu;
+    head = node->Next;
+    nu = node->NU;
+    if (nu == 0)
+      continue;
+    for (; nu > 128; nu -= 128, node += 128)
+      InsertNode(p, node, PPMD_NUM_INDEXES - 1);
+    if (I2U(i = U2I(nu)) != nu)
+    {
+      unsigned k = I2U(--i);
+      InsertNode(p, node + k, nu - k - 1);
+    }
+    InsertNode(p, node, i);
+  }
+}
+
+static void *AllocUnitsRare(CPpmd8 *p, unsigned indx)
+{
+  unsigned i;
+  void *retVal;
+  if (p->GlueCount == 0)
+  {
+    GlueFreeBlocks(p);
+    if (p->FreeList[indx] != 0)
+      return RemoveNode(p, indx);
+  }
+  i = indx;
+  do
+  {
+    if (++i == PPMD_NUM_INDEXES)
+    {
+      UInt32 numBytes = U2B(I2U(indx));
+      p->GlueCount--;
+      return ((UInt32)(p->UnitsStart - p->Text) > numBytes) ? (p->UnitsStart -= numBytes) : (NULL);
+    }
+  }
+  while (p->FreeList[i] == 0);
+  retVal = RemoveNode(p, i);
+  SplitBlock(p, retVal, i, indx);
+  return retVal;
+}
+
+static void *AllocUnits(CPpmd8 *p, unsigned indx)
+{
+  UInt32 numBytes;
+  if (p->FreeList[indx] != 0)
+    return RemoveNode(p, indx);
+  numBytes = U2B(I2U(indx));
+  if (numBytes <= (UInt32)(p->HiUnit - p->LoUnit))
+  {
+    void *retVal = p->LoUnit;
+    p->LoUnit += numBytes;
+    return retVal;
+  }
+  return AllocUnitsRare(p, indx);
+}
+
+#define MyMem12Cpy(dest, src, num) \
+  { UInt32 *d = (UInt32 *)dest; const UInt32 *z = (const UInt32 *)src; UInt32 n = num; \
+    do { d[0] = z[0]; d[1] = z[1]; d[2] = z[2]; z += 3; d += 3; } while (--n); }
+
+static void *ShrinkUnits(CPpmd8 *p, void *oldPtr, unsigned oldNU, unsigned newNU)
+{
+  unsigned i0 = U2I(oldNU);
+  unsigned i1 = U2I(newNU);
+  if (i0 == i1)
+    return oldPtr;
+  if (p->FreeList[i1] != 0)
+  {
+    void *ptr = RemoveNode(p, i1);
+    MyMem12Cpy(ptr, oldPtr, newNU);
+    InsertNode(p, oldPtr, i0);
+    return ptr;
+  }
+  SplitBlock(p, oldPtr, i0, i1);
+  return oldPtr;
+}
+
+static void FreeUnits(CPpmd8 *p, void *ptr, unsigned nu)
+{
+  InsertNode(p, ptr, U2I(nu));
+}
+
+static void SpecialFreeUnit(CPpmd8 *p, void *ptr)
+{
+  if ((Byte *)ptr != p->UnitsStart)
+    InsertNode(p, ptr, 0);
+  else
+  {
+    #ifdef PPMD8_FREEZE_SUPPORT
+    *(UInt32 *)ptr = EMPTY_NODE; /* it's used for (Flags == 0xFF) check in RemoveBinContexts */
+    #endif
+    p->UnitsStart += UNIT_SIZE;
+  }
+}
+
+static void *MoveUnitsUp(CPpmd8 *p, void *oldPtr, unsigned nu)
+{
+  unsigned indx = U2I(nu);
+  void *ptr;
+  if ((Byte *)oldPtr > p->UnitsStart + 16 * 1024 || REF(oldPtr) > p->FreeList[indx])
+    return oldPtr;
+  ptr = RemoveNode(p, indx);
+  MyMem12Cpy(ptr, oldPtr, nu);
+  if ((Byte*)oldPtr != p->UnitsStart)
+    InsertNode(p, oldPtr, indx);
+  else
+    p->UnitsStart += U2B(I2U(indx));
+  return ptr;
+}
+
+static void ExpandTextArea(CPpmd8 *p)
+{
+  UInt32 count[PPMD_NUM_INDEXES];
+  unsigned i;
+  memset(count, 0, sizeof(count));
+  if (p->LoUnit != p->HiUnit)
+    ((CPpmd8_Node *)p->LoUnit)->Stamp = 0;
+  
+  {
+    CPpmd8_Node *node = (CPpmd8_Node *)p->UnitsStart;
+    for (; node->Stamp == EMPTY_NODE; node += node->NU)
+    {
+      node->Stamp = 0;
+      count[U2I(node->NU)]++;
+    }
+    p->UnitsStart = (Byte *)node;
+  }
+  
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+  {
+    CPpmd8_Node_Ref *next = (CPpmd8_Node_Ref *)&p->FreeList[i];
+    while (count[i] != 0)
+    {
+      CPpmd8_Node *node = NODE(*next);
+      while (node->Stamp == 0)
+      {
+        *next = node->Next;
+        node = NODE(*next);
+        p->Stamps[i]--;
+        if (--count[i] == 0)
+          break;
+      }
+      next = &node->Next;
+    }
+  }
+}
+
+#define SUCCESSOR(p) ((CPpmd_Void_Ref)((p)->SuccessorLow | ((UInt32)(p)->SuccessorHigh << 16)))
+
+static void SetSuccessor(CPpmd_State *p, CPpmd_Void_Ref v)
+{
+  (p)->SuccessorLow = (UInt16)((UInt32)(v) & 0xFFFF);
+  (p)->SuccessorHigh = (UInt16)(((UInt32)(v) >> 16) & 0xFFFF);
+}
+
+#define RESET_TEXT(offs) { p->Text = p->Base + p->AlignOffset + (offs); }
+
+static void RestartModel(CPpmd8 *p)
+{
+  unsigned i, k, m, r;
+
+  memset(p->FreeList, 0, sizeof(p->FreeList));
+  memset(p->Stamps, 0, sizeof(p->Stamps));
+  RESET_TEXT(0);
+  p->HiUnit = p->Text + p->Size;
+  p->LoUnit = p->UnitsStart = p->HiUnit - p->Size / 8 / UNIT_SIZE * 7 * UNIT_SIZE;
+  p->GlueCount = 0;
+
+  p->OrderFall = p->MaxOrder;
+  p->RunLength = p->InitRL = -(Int32)((p->MaxOrder < 12) ? p->MaxOrder : 12) - 1;
+  p->PrevSuccess = 0;
+
+  p->MinContext = p->MaxContext = (CTX_PTR)(p->HiUnit -= UNIT_SIZE); /* AllocContext(p); */
+  p->MinContext->Suffix = 0;
+  p->MinContext->NumStats = 255;
+  p->MinContext->Flags = 0;
+  p->MinContext->SummFreq = 256 + 1;
+  p->FoundState = (CPpmd_State *)p->LoUnit; /* AllocUnits(p, PPMD_NUM_INDEXES - 1); */
+  p->LoUnit += U2B(256 / 2);
+  p->MinContext->Stats = REF(p->FoundState);
+  for (i = 0; i < 256; i++)
+  {
+    CPpmd_State *s = &p->FoundState[i];
+    s->Symbol = (Byte)i;
+    s->Freq = 1;
+    SetSuccessor(s, 0);
+  }
+
+  for (i = m = 0; m < 25; m++)
+  {
+    while (p->NS2Indx[i] == m)
+      i++;
+    for (k = 0; k < 8; k++)
+    {
+      UInt16 val = (UInt16)(PPMD_BIN_SCALE - kInitBinEsc[k] / (i + 1));
+      UInt16 *dest = p->BinSumm[m] + k;
+      for (r = 0; r < 64; r += 8)
+        dest[r] = val;
+    }
+  }
+
+  for (i = m = 0; m < 24; m++)
+  {
+    while (p->NS2Indx[i + 3] == m + 3)
+      i++;
+    for (k = 0; k < 32; k++)
+    {
+      CPpmd_See *s = &p->See[m][k];
+      s->Summ = (UInt16)((2 * i + 5) << (s->Shift = PPMD_PERIOD_BITS - 4));
+      s->Count = 7;
+    }
+  }
+}
+
+void Ppmd8_Init(CPpmd8 *p, unsigned maxOrder, unsigned restoreMethod)
+{
+  p->MaxOrder = maxOrder;
+  p->RestoreMethod = restoreMethod;
+  RestartModel(p);
+  p->DummySee.Shift = PPMD_PERIOD_BITS;
+  p->DummySee.Summ = 0; /* unused */
+  p->DummySee.Count = 64; /* unused */
+}
+
+static void Refresh(CPpmd8 *p, CTX_PTR ctx, unsigned oldNU, unsigned scale)
+{
+  unsigned i = ctx->NumStats, escFreq, sumFreq, flags;
+  CPpmd_State *s = (CPpmd_State *)ShrinkUnits(p, STATS(ctx), oldNU, (i + 2) >> 1);
+  ctx->Stats = REF(s);
+  #ifdef PPMD8_FREEZE_SUPPORT
+  /* fixed over Shkarin's code. Fixed code is not compatible with original code for some files in FREEZE mode. */
+  scale |= (ctx->SummFreq >= ((UInt32)1 << 15));
+  #endif
+  flags = (ctx->Flags & (0x10 + 0x04 * scale)) + 0x08 * (s->Symbol >= 0x40);
+  escFreq = ctx->SummFreq - s->Freq;
+  sumFreq = (s->Freq = (Byte)((s->Freq + scale) >> scale));
+  do
+  {
+    escFreq -= (++s)->Freq;
+    sumFreq += (s->Freq = (Byte)((s->Freq + scale) >> scale));
+    flags |= 0x08 * (s->Symbol >= 0x40);
+  }
+  while (--i);
+  ctx->SummFreq = (UInt16)(sumFreq + ((escFreq + scale) >> scale));
+  ctx->Flags = (Byte)flags;
+}
+
+static void SwapStates(CPpmd_State *t1, CPpmd_State *t2)
+{
+  CPpmd_State tmp = *t1;
+  *t1 = *t2;
+  *t2 = tmp;
+}
+
+static CPpmd_Void_Ref CutOff(CPpmd8 *p, CTX_PTR ctx, unsigned order)
+{
+  int i;
+  unsigned tmp;
+  CPpmd_State *s;
+  
+  if (!ctx->NumStats)
+  {
+    s = ONE_STATE(ctx);
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) >= p->UnitsStart)
+    {
+      if (order < p->MaxOrder)
+        SetSuccessor(s, CutOff(p, CTX(SUCCESSOR(s)), order + 1));
+      else
+        SetSuccessor(s, 0);
+      if (SUCCESSOR(s) || order <= 9) /* O_BOUND */
+        return REF(ctx);
+    }
+    SpecialFreeUnit(p, ctx);
+    return 0;
+  }
+
+  ctx->Stats = STATS_REF(MoveUnitsUp(p, STATS(ctx), tmp = ((unsigned)ctx->NumStats + 2) >> 1));
+
+  for (s = STATS(ctx) + (i = ctx->NumStats); s >= STATS(ctx); s--)
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) < p->UnitsStart)
+    {
+      CPpmd_State *s2 = STATS(ctx) + (i--);
+      SetSuccessor(s, 0);
+      SwapStates(s, s2);
+    }
+    else if (order < p->MaxOrder)
+      SetSuccessor(s, CutOff(p, CTX(SUCCESSOR(s)), order + 1));
+    else
+      SetSuccessor(s, 0);
+    
+  if (i != ctx->NumStats && order)
+  {
+    ctx->NumStats = (Byte)i;
+    s = STATS(ctx);
+    if (i < 0)
+    {
+      FreeUnits(p, s, tmp);
+      SpecialFreeUnit(p, ctx);
+      return 0;
+    }
+    if (i == 0)
+    {
+      ctx->Flags = (Byte)((ctx->Flags & 0x10) + 0x08 * (s->Symbol >= 0x40));
+      *ONE_STATE(ctx) = *s;
+      FreeUnits(p, s, tmp);
+      /* 9.31: the code was fixed. It's was not BUG, if Freq <= MAX_FREQ = 124 */
+      ONE_STATE(ctx)->Freq = (Byte)(((unsigned)ONE_STATE(ctx)->Freq + 11) >> 3);
+    }
+    else
+      Refresh(p, ctx, tmp, ctx->SummFreq > 16 * i);
+  }
+  return REF(ctx);
+}
+
+#ifdef PPMD8_FREEZE_SUPPORT
+static CPpmd_Void_Ref RemoveBinContexts(CPpmd8 *p, CTX_PTR ctx, unsigned order)
+{
+  CPpmd_State *s;
+  if (!ctx->NumStats)
+  {
+    s = ONE_STATE(ctx);
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) >= p->UnitsStart && order < p->MaxOrder)
+      SetSuccessor(s, RemoveBinContexts(p, CTX(SUCCESSOR(s)), order + 1));
+    else
+      SetSuccessor(s, 0);
+    /* Suffix context can be removed already, since different (high-order)
+       Successors may refer to same context. So we check Flags == 0xFF (Stamp == EMPTY_NODE) */
+    if (!SUCCESSOR(s) && (!SUFFIX(ctx)->NumStats || SUFFIX(ctx)->Flags == 0xFF))
+    {
+      FreeUnits(p, ctx, 1);
+      return 0;
+    }
+    else
+      return REF(ctx);
+  }
+
+  for (s = STATS(ctx) + ctx->NumStats; s >= STATS(ctx); s--)
+    if ((Byte *)Ppmd8_GetPtr(p, SUCCESSOR(s)) >= p->UnitsStart && order < p->MaxOrder)
+      SetSuccessor(s, RemoveBinContexts(p, CTX(SUCCESSOR(s)), order + 1));
+    else
+      SetSuccessor(s, 0);
+  
+  return REF(ctx);
+}
+#endif
+
+static UInt32 GetUsedMemory(const CPpmd8 *p)
+{
+  UInt32 v = 0;
+  unsigned i;
+  for (i = 0; i < PPMD_NUM_INDEXES; i++)
+    v += p->Stamps[i] * I2U(i);
+  return p->Size - (UInt32)(p->HiUnit - p->LoUnit) - (UInt32)(p->UnitsStart - p->Text) - U2B(v);
+}
+
+#ifdef PPMD8_FREEZE_SUPPORT
+  #define RESTORE_MODEL(c1, fSuccessor) RestoreModel(p, c1, fSuccessor)
+#else
+  #define RESTORE_MODEL(c1, fSuccessor) RestoreModel(p, c1)
+#endif
+
+static void RestoreModel(CPpmd8 *p, CTX_PTR c1
+    #ifdef PPMD8_FREEZE_SUPPORT
+    , CTX_PTR fSuccessor
+    #endif
+    )
+{
+  CTX_PTR c;
+  CPpmd_State *s;
+  RESET_TEXT(0);
+  for (c = p->MaxContext; c != c1; c = SUFFIX(c))
+    if (--(c->NumStats) == 0)
+    {
+      s = STATS(c);
+      c->Flags = (Byte)((c->Flags & 0x10) + 0x08 * (s->Symbol >= 0x40));
+      *ONE_STATE(c) = *s;
+      SpecialFreeUnit(p, s);
+      ONE_STATE(c)->Freq = (Byte)(((unsigned)ONE_STATE(c)->Freq + 11) >> 3);
+    }
+    else
+      Refresh(p, c, (c->NumStats+3) >> 1, 0);
+ 
+  for (; c != p->MinContext; c = SUFFIX(c))
+    if (!c->NumStats)
+      ONE_STATE(c)->Freq = (Byte)(ONE_STATE(c)->Freq - (ONE_STATE(c)->Freq >> 1));
+    else if ((c->SummFreq += 4) > 128 + 4 * c->NumStats)
+      Refresh(p, c, (c->NumStats + 2) >> 1, 1);
+
+  #ifdef PPMD8_FREEZE_SUPPORT
+  if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    p->MaxContext = fSuccessor;
+    p->GlueCount += !(p->Stamps[1] & 1);
+  }
+  else if (p->RestoreMethod == PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    while (p->MaxContext->Suffix)
+      p->MaxContext = SUFFIX(p->MaxContext);
+    RemoveBinContexts(p, p->MaxContext, 0);
+    p->RestoreMethod++;
+    p->GlueCount = 0;
+    p->OrderFall = p->MaxOrder;
+  }
+  else
+  #endif
+  if (p->RestoreMethod == PPMD8_RESTORE_METHOD_RESTART || GetUsedMemory(p) < (p->Size >> 1))
+    RestartModel(p);
+  else
+  {
+    while (p->MaxContext->Suffix)
+      p->MaxContext = SUFFIX(p->MaxContext);
+    do
+    {
+      CutOff(p, p->MaxContext, 0);
+      ExpandTextArea(p);
+    }
+    while (GetUsedMemory(p) > 3 * (p->Size >> 2));
+    p->GlueCount = 0;
+    p->OrderFall = p->MaxOrder;
+  }
+}
+
+static CTX_PTR CreateSuccessors(CPpmd8 *p, Bool skip, CPpmd_State *s1, CTX_PTR c)
+{
+  CPpmd_State upState;
+  Byte flags;
+  CPpmd_Byte_Ref upBranch = (CPpmd_Byte_Ref)SUCCESSOR(p->FoundState);
+  /* fixed over Shkarin's code. Maybe it could work without + 1 too. */
+  CPpmd_State *ps[PPMD8_MAX_ORDER + 1];
+  unsigned numPs = 0;
+  
+  if (!skip)
+    ps[numPs++] = p->FoundState;
+  
+  while (c->Suffix)
+  {
+    CPpmd_Void_Ref successor;
+    CPpmd_State *s;
+    c = SUFFIX(c);
+    if (s1)
+    {
+      s = s1;
+      s1 = NULL;
+    }
+    else if (c->NumStats != 0)
+    {
+      for (s = STATS(c); s->Symbol != p->FoundState->Symbol; s++);
+      if (s->Freq < MAX_FREQ - 9)
+      {
+        s->Freq++;
+        c->SummFreq++;
+      }
+    }
+    else
+    {
+      s = ONE_STATE(c);
+      s->Freq = (Byte)(s->Freq + (!SUFFIX(c)->NumStats & (s->Freq < 24)));
+    }
+    successor = SUCCESSOR(s);
+    if (successor != upBranch)
+    {
+      c = CTX(successor);
+      if (numPs == 0)
+        return c;
+      break;
+    }
+    ps[numPs++] = s;
+  }
+  
+  upState.Symbol = *(const Byte *)Ppmd8_GetPtr(p, upBranch);
+  SetSuccessor(&upState, upBranch + 1);
+  flags = (Byte)(0x10 * (p->FoundState->Symbol >= 0x40) + 0x08 * (upState.Symbol >= 0x40));
+
+  if (c->NumStats == 0)
+    upState.Freq = ONE_STATE(c)->Freq;
+  else
+  {
+    UInt32 cf, s0;
+    CPpmd_State *s;
+    for (s = STATS(c); s->Symbol != upState.Symbol; s++);
+    cf = s->Freq - 1;
+    s0 = c->SummFreq - c->NumStats - cf;
+    upState.Freq = (Byte)(1 + ((2 * cf <= s0) ? (5 * cf > s0) : ((cf + 2 * s0 - 3) / s0)));
+  }
+
+  do
+  {
+    /* Create Child */
+    CTX_PTR c1; /* = AllocContext(p); */
+    if (p->HiUnit != p->LoUnit)
+      c1 = (CTX_PTR)(p->HiUnit -= UNIT_SIZE);
+    else if (p->FreeList[0] != 0)
+      c1 = (CTX_PTR)RemoveNode(p, 0);
+    else
+    {
+      c1 = (CTX_PTR)AllocUnitsRare(p, 0);
+      if (!c1)
+        return NULL;
+    }
+    c1->NumStats = 0;
+    c1->Flags = flags;
+    *ONE_STATE(c1) = upState;
+    c1->Suffix = REF(c);
+    SetSuccessor(ps[--numPs], REF(c1));
+    c = c1;
+  }
+  while (numPs != 0);
+  
+  return c;
+}
+
+static CTX_PTR ReduceOrder(CPpmd8 *p, CPpmd_State *s1, CTX_PTR c)
+{
+  CPpmd_State *s = NULL;
+  CTX_PTR c1 = c;
+  CPpmd_Void_Ref upBranch = REF(p->Text);
+  
+  #ifdef PPMD8_FREEZE_SUPPORT
+  /* The BUG in Shkarin's code was fixed: ps could overflow in CUT_OFF mode. */
+  CPpmd_State *ps[PPMD8_MAX_ORDER + 1];
+  unsigned numPs = 0;
+  ps[numPs++] = p->FoundState;
+  #endif
+
+  SetSuccessor(p->FoundState, upBranch);
+  p->OrderFall++;
+
+  for (;;)
+  {
+    if (s1)
+    {
+      c = SUFFIX(c);
+      s = s1;
+      s1 = NULL;
+    }
+    else
+    {
+      if (!c->Suffix)
+      {
+        #ifdef PPMD8_FREEZE_SUPPORT
+        if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+        {
+          do { SetSuccessor(ps[--numPs], REF(c)); } while (numPs);
+          RESET_TEXT(1);
+          p->OrderFall = 1;
+        }
+        #endif
+        return c;
+      }
+      c = SUFFIX(c);
+      if (c->NumStats)
+      {
+        if ((s = STATS(c))->Symbol != p->FoundState->Symbol)
+          do { s++; } while (s->Symbol != p->FoundState->Symbol);
+        if (s->Freq < MAX_FREQ - 9)
+        {
+          s->Freq += 2;
+          c->SummFreq += 2;
+        }
+      }
+      else
+      {
+        s = ONE_STATE(c);
+        s->Freq = (Byte)(s->Freq + (s->Freq < 32));
+      }
+    }
+    if (SUCCESSOR(s))
+      break;
+    #ifdef PPMD8_FREEZE_SUPPORT
+    ps[numPs++] = s;
+    #endif
+    SetSuccessor(s, upBranch);
+    p->OrderFall++;
+  }
+  
+  #ifdef PPMD8_FREEZE_SUPPORT
+  if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    c = CTX(SUCCESSOR(s));
+    do { SetSuccessor(ps[--numPs], REF(c)); } while (numPs);
+    RESET_TEXT(1);
+    p->OrderFall = 1;
+    return c;
+  }
+  else
+  #endif
+  if (SUCCESSOR(s) <= upBranch)
+  {
+    CTX_PTR successor;
+    CPpmd_State *s2 = p->FoundState;
+    p->FoundState = s;
+
+    successor = CreateSuccessors(p, False, NULL, c);
+    if (successor == NULL)
+      SetSuccessor(s, 0);
+    else
+      SetSuccessor(s, REF(successor));
+    p->FoundState = s2;
+  }
+  
+  if (p->OrderFall == 1 && c1 == p->MaxContext)
+  {
+    SetSuccessor(p->FoundState, SUCCESSOR(s));
+    p->Text--;
+  }
+  if (SUCCESSOR(s) == 0)
+    return NULL;
+  return CTX(SUCCESSOR(s));
+}
+
+static void UpdateModel(CPpmd8 *p)
+{
+  CPpmd_Void_Ref successor, fSuccessor = SUCCESSOR(p->FoundState);
+  CTX_PTR c;
+  unsigned s0, ns, fFreq = p->FoundState->Freq;
+  Byte flag, fSymbol = p->FoundState->Symbol;
+  CPpmd_State *s = NULL;
+  
+  if (p->FoundState->Freq < MAX_FREQ / 4 && p->MinContext->Suffix != 0)
+  {
+    c = SUFFIX(p->MinContext);
+    
+    if (c->NumStats == 0)
+    {
+      s = ONE_STATE(c);
+      if (s->Freq < 32)
+        s->Freq++;
+    }
+    else
+    {
+      s = STATS(c);
+      if (s->Symbol != p->FoundState->Symbol)
+      {
+        do { s++; } while (s->Symbol != p->FoundState->Symbol);
+        if (s[0].Freq >= s[-1].Freq)
+        {
+          SwapStates(&s[0], &s[-1]);
+          s--;
+        }
+      }
+      if (s->Freq < MAX_FREQ - 9)
+      {
+        s->Freq += 2;
+        c->SummFreq += 2;
+      }
+    }
+  }
+  
+  c = p->MaxContext;
+  if (p->OrderFall == 0 && fSuccessor)
+  {
+    CTX_PTR cs = CreateSuccessors(p, True, s, p->MinContext);
+    if (cs == 0)
+    {
+      SetSuccessor(p->FoundState, 0);
+      RESTORE_MODEL(c, CTX(fSuccessor));
+    }
+    else
+    {
+      SetSuccessor(p->FoundState, REF(cs));
+      p->MaxContext = cs;
+    }
+    return;
+  }
+  
+  *p->Text++ = p->FoundState->Symbol;
+  successor = REF(p->Text);
+  if (p->Text >= p->UnitsStart)
+  {
+    RESTORE_MODEL(c, CTX(fSuccessor)); /* check it */
+    return;
+  }
+  
+  if (!fSuccessor)
+  {
+    CTX_PTR cs = ReduceOrder(p, s, p->MinContext);
+    if (cs == NULL)
+    {
+      RESTORE_MODEL(c, 0);
+      return;
+    }
+    fSuccessor = REF(cs);
+  }
+  else if ((Byte *)Ppmd8_GetPtr(p, fSuccessor) < p->UnitsStart)
+  {
+    CTX_PTR cs = CreateSuccessors(p, False, s, p->MinContext);
+    if (cs == NULL)
+    {
+      RESTORE_MODEL(c, 0);
+      return;
+    }
+    fSuccessor = REF(cs);
+  }
+  
+  if (--p->OrderFall == 0)
+  {
+    successor = fSuccessor;
+    p->Text -= (p->MaxContext != p->MinContext);
+  }
+  #ifdef PPMD8_FREEZE_SUPPORT
+  else if (p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE)
+  {
+    successor = fSuccessor;
+    RESET_TEXT(0);
+    p->OrderFall = 0;
+  }
+  #endif
+  
+  s0 = p->MinContext->SummFreq - (ns = p->MinContext->NumStats) - fFreq;
+  flag = (Byte)(0x08 * (fSymbol >= 0x40));
+  
+  for (; c != p->MinContext; c = SUFFIX(c))
+  {
+    unsigned ns1;
+    UInt32 cf, sf;
+    if ((ns1 = c->NumStats) != 0)
+    {
+      if ((ns1 & 1) != 0)
+      {
+        /* Expand for one UNIT */
+        unsigned oldNU = (ns1 + 1) >> 1;
+        unsigned i = U2I(oldNU);
+        if (i != U2I(oldNU + 1))
+        {
+          void *ptr = AllocUnits(p, i + 1);
+          void *oldPtr;
+          if (!ptr)
+          {
+            RESTORE_MODEL(c, CTX(fSuccessor));
+            return;
+          }
+          oldPtr = STATS(c);
+          MyMem12Cpy(ptr, oldPtr, oldNU);
+          InsertNode(p, oldPtr, i);
+          c->Stats = STATS_REF(ptr);
+        }
+      }
+      c->SummFreq = (UInt16)(c->SummFreq + (3 * ns1 + 1 < ns));
+    }
+    else
+    {
+      CPpmd_State *s2 = (CPpmd_State*)AllocUnits(p, 0);
+      if (!s2)
+      {
+        RESTORE_MODEL(c, CTX(fSuccessor));
+        return;
+      }
+      *s2 = *ONE_STATE(c);
+      c->Stats = REF(s2);
+      if (s2->Freq < MAX_FREQ / 4 - 1)
+        s2->Freq <<= 1;
+      else
+        s2->Freq = MAX_FREQ - 4;
+      c->SummFreq = (UInt16)(s2->Freq + p->InitEsc + (ns > 2));
+    }
+    cf = 2 * fFreq * (c->SummFreq + 6);
+    sf = (UInt32)s0 + c->SummFreq;
+    if (cf < 6 * sf)
+    {
+      cf = 1 + (cf > sf) + (cf >= 4 * sf);
+      c->SummFreq += 4;
+    }
+    else
+    {
+      cf = 4 + (cf > 9 * sf) + (cf > 12 * sf) + (cf > 15 * sf);
+      c->SummFreq = (UInt16)(c->SummFreq + cf);
+    }
+    {
+      CPpmd_State *s2 = STATS(c) + ns1 + 1;
+      SetSuccessor(s2, successor);
+      s2->Symbol = fSymbol;
+      s2->Freq = (Byte)cf;
+      c->Flags |= flag;
+      c->NumStats = (Byte)(ns1 + 1);
+    }
+  }
+  p->MaxContext = p->MinContext = CTX(fSuccessor);
+}
+  
+static void Rescale(CPpmd8 *p)
+{
+  unsigned i, adder, sumFreq, escFreq;
+  CPpmd_State *stats = STATS(p->MinContext);
+  CPpmd_State *s = p->FoundState;
+  {
+    CPpmd_State tmp = *s;
+    for (; s != stats; s--)
+      s[0] = s[-1];
+    *s = tmp;
+  }
+  escFreq = p->MinContext->SummFreq - s->Freq;
+  s->Freq += 4;
+  adder = (p->OrderFall != 0
+      #ifdef PPMD8_FREEZE_SUPPORT
+      || p->RestoreMethod > PPMD8_RESTORE_METHOD_FREEZE
+      #endif
+      );
+  s->Freq = (Byte)((s->Freq + adder) >> 1);
+  sumFreq = s->Freq;
+  
+  i = p->MinContext->NumStats;
+  do
+  {
+    escFreq -= (++s)->Freq;
+    s->Freq = (Byte)((s->Freq + adder) >> 1);
+    sumFreq += s->Freq;
+    if (s[0].Freq > s[-1].Freq)
+    {
+      CPpmd_State *s1 = s;
+      CPpmd_State tmp = *s1;
+      do
+        s1[0] = s1[-1];
+      while (--s1 != stats && tmp.Freq > s1[-1].Freq);
+      *s1 = tmp;
+    }
+  }
+  while (--i);
+  
+  if (s->Freq == 0)
+  {
+    unsigned numStats = p->MinContext->NumStats;
+    unsigned n0, n1;
+    do { i++; } while ((--s)->Freq == 0);
+    escFreq += i;
+    p->MinContext->NumStats = (Byte)(p->MinContext->NumStats - i);
+    if (p->MinContext->NumStats == 0)
+    {
+      CPpmd_State tmp = *stats;
+      tmp.Freq = (Byte)((2 * tmp.Freq + escFreq - 1) / escFreq);
+      if (tmp.Freq > MAX_FREQ / 3)
+        tmp.Freq = MAX_FREQ / 3;
+      InsertNode(p, stats, U2I((numStats + 2) >> 1));
+      p->MinContext->Flags = (Byte)((p->MinContext->Flags & 0x10) + 0x08 * (tmp.Symbol >= 0x40));
+      *(p->FoundState = ONE_STATE(p->MinContext)) = tmp;
+      return;
+    }
+    n0 = (numStats + 2) >> 1;
+    n1 = (p->MinContext->NumStats + 2) >> 1;
+    if (n0 != n1)
+      p->MinContext->Stats = STATS_REF(ShrinkUnits(p, stats, n0, n1));
+    p->MinContext->Flags &= ~0x08;
+    p->MinContext->Flags |= 0x08 * ((s = STATS(p->MinContext))->Symbol >= 0x40);
+    i = p->MinContext->NumStats;
+    do { p->MinContext->Flags |= 0x08*((++s)->Symbol >= 0x40); } while (--i);
+  }
+  p->MinContext->SummFreq = (UInt16)(sumFreq + escFreq - (escFreq >> 1));
+  p->MinContext->Flags |= 0x4;
+  p->FoundState = STATS(p->MinContext);
+}
+
+CPpmd_See *Ppmd8_MakeEscFreq(CPpmd8 *p, unsigned numMasked1, UInt32 *escFreq)
+{
+  CPpmd_See *see;
+  if (p->MinContext->NumStats != 0xFF)
+  {
+    see = p->See[(unsigned)p->NS2Indx[(unsigned)p->MinContext->NumStats + 2] - 3] +
+        (p->MinContext->SummFreq > 11 * ((unsigned)p->MinContext->NumStats + 1)) +
+        2 * (unsigned)(2 * (unsigned)p->MinContext->NumStats <
+        ((unsigned)SUFFIX(p->MinContext)->NumStats + numMasked1)) +
+        p->MinContext->Flags;
+    {
+      unsigned r = (see->Summ >> see->Shift);
+      see->Summ = (UInt16)(see->Summ - r);
+      *escFreq = r + (r == 0);
+    }
+  }
+  else
+  {
+    see = &p->DummySee;
+    *escFreq = 1;
+  }
+  return see;
+}
+
+static void NextContext(CPpmd8 *p)
+{
+  CTX_PTR c = CTX(SUCCESSOR(p->FoundState));
+  if (p->OrderFall == 0 && (Byte *)c >= p->UnitsStart)
+    p->MinContext = p->MaxContext = c;
+  else
+  {
+    UpdateModel(p);
+    p->MinContext = p->MaxContext;
+  }
+}
+
+void Ppmd8_Update1(CPpmd8 *p)
+{
+  CPpmd_State *s = p->FoundState;
+  s->Freq += 4;
+  p->MinContext->SummFreq += 4;
+  if (s[0].Freq > s[-1].Freq)
+  {
+    SwapStates(&s[0], &s[-1]);
+    p->FoundState = --s;
+    if (s->Freq > MAX_FREQ)
+      Rescale(p);
+  }
+  NextContext(p);
+}
+
+void Ppmd8_Update1_0(CPpmd8 *p)
+{
+  p->PrevSuccess = (2 * p->FoundState->Freq >= p->MinContext->SummFreq);
+  p->RunLength += p->PrevSuccess;
+  p->MinContext->SummFreq += 4;
+  if ((p->FoundState->Freq += 4) > MAX_FREQ)
+    Rescale(p);
+  NextContext(p);
+}
+
+void Ppmd8_UpdateBin(CPpmd8 *p)
+{
+  p->FoundState->Freq = (Byte)(p->FoundState->Freq + (p->FoundState->Freq < 196));
+  p->PrevSuccess = 1;
+  p->RunLength++;
+  NextContext(p);
+}
+
+void Ppmd8_Update2(CPpmd8 *p)
+{
+  p->MinContext->SummFreq += 4;
+  if ((p->FoundState->Freq += 4) > MAX_FREQ)
+    Rescale(p);
+  p->RunLength = p->InitRL;
+  UpdateModel(p);
+  p->MinContext = p->MaxContext;
+}
+
+/* Ppmd8Dec.c -- PPMdI Decoder
+2010-04-16 : Igor Pavlov : Public domain
+This code is based on:
+  PPMd var.I (2002): Dmitry Shkarin : Public domain
+  Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
+Bool Ppmd8_RangeDec_Init(CPpmd8 *p)
+{
+  unsigned i;
+  p->Low = 0;
+  p->Range = 0xFFFFFFFF;
+  p->Code = 0;
+  for (i = 0; i < 4; i++)
+    p->Code = (p->Code << 8) | p->Stream.In->Read(p->Stream.In);
+  return (p->Code < 0xFFFFFFFF);
+}
+
+static UInt32 RangeDec_GetThreshold(CPpmd8 *p, UInt32 total)
+{
+  return p->Code / (p->Range /= total);
+}
+
+static void RangeDec_Decode(CPpmd8 *p, UInt32 start, UInt32 size)
+{
+  start *= p->Range;
+  p->Low += start;
+  p->Code -= start;
+  p->Range *= size;
+
+  while ((p->Low ^ (p->Low + p->Range)) < kTop ||
+      (p->Range < kBot && ((p->Range = (0 - p->Low) & (kBot - 1)), 1)))
+  {
+    p->Code = (p->Code << 8) | p->Stream.In->Read(p->Stream.In);
+    p->Range <<= 8;
+    p->Low <<= 8;
+  }
+}
+
+#define MASK(sym) ((signed char *)charMask)[sym]
+
+int Ppmd8_DecodeSymbol(CPpmd8 *p)
+{
+  size_t charMask[256 / sizeof(size_t)];
+  if (p->MinContext->NumStats != 0)
+  {
+    CPpmd_State *s = Ppmd8_GetStats(p, p->MinContext);
+    unsigned i;
+    UInt32 count, hiCnt;
+    if ((count = RangeDec_GetThreshold(p, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
+    {
+      Byte symbol;
+      RangeDec_Decode(p, 0, s->Freq);
+      p->FoundState = s;
+      symbol = s->Symbol;
+      Ppmd8_Update1_0(p);
+      return symbol;
+    }
+    p->PrevSuccess = 0;
+    i = p->MinContext->NumStats;
+    do
+    {
+      if ((hiCnt += (++s)->Freq) > count)
+      {
+        Byte symbol;
+        RangeDec_Decode(p, hiCnt - s->Freq, s->Freq);
+        p->FoundState = s;
+        symbol = s->Symbol;
+        Ppmd8_Update1(p);
+        return symbol;
+      }
+    }
+    while (--i);
+    if (count >= p->MinContext->SummFreq)
+      return -2;
+    RangeDec_Decode(p, hiCnt, p->MinContext->SummFreq - hiCnt);
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(s->Symbol) = 0;
+    i = p->MinContext->NumStats;
+    do { MASK((--s)->Symbol) = 0; } while (--i);
+  }
+  else
+  {
+    UInt16 *prob = Ppmd8_GetBinSumm(p);
+    if (((p->Code / (p->Range >>= 14)) < *prob))
+    {
+      Byte symbol;
+      RangeDec_Decode(p, 0, *prob);
+      *prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
+      symbol = (p->FoundState = Ppmd8Context_OneState(p->MinContext))->Symbol;
+      Ppmd8_UpdateBin(p);
+      return symbol;
+    }
+    RangeDec_Decode(p, *prob, (1 << 14) - *prob);
+    *prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
+    p->InitEsc = PPMD8_kExpEscape[*prob >> 10];
+    PPMD_SetAllBitsIn256Bytes(charMask);
+    MASK(Ppmd8Context_OneState(p->MinContext)->Symbol) = 0;
+    p->PrevSuccess = 0;
+  }
+  for (;;)
+  {
+    CPpmd_State *ps[256], *s;
+    UInt32 freqSum, count, hiCnt;
+    CPpmd_See *see;
+    unsigned i, num, numMasked = p->MinContext->NumStats;
+    do
+    {
+      p->OrderFall++;
+      if (!p->MinContext->Suffix)
+        return -1;
+      p->MinContext = Ppmd8_GetContext(p, p->MinContext->Suffix);
+    }
+    while (p->MinContext->NumStats == numMasked);
+    hiCnt = 0;
+    s = Ppmd8_GetStats(p, p->MinContext);
+    i = 0;
+    num = p->MinContext->NumStats - numMasked;
+    do
+    {
+      int k = (int)(MASK(s->Symbol));
+      hiCnt += (s->Freq & k);
+      ps[i] = s++;
+      i -= k;
+    }
+    while (i != num);
+    
+    see = Ppmd8_MakeEscFreq(p, numMasked, &freqSum);
+    freqSum += hiCnt;
+    count = RangeDec_GetThreshold(p, freqSum);
+    
+    if (count < hiCnt)
+    {
+      Byte symbol;
+      CPpmd_State **pps = ps;
+      for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
+      s = *pps;
+      RangeDec_Decode(p, hiCnt - s->Freq, s->Freq);
+      Ppmd_See_Update(see);
+      p->FoundState = s;
+      symbol = s->Symbol;
+      Ppmd8_Update2(p);
+      return symbol;
+    }
+    if (count >= freqSum)
+      return -2;
+    RangeDec_Decode(p, hiCnt, freqSum - hiCnt);
+    see->Summ = (UInt16)(see->Summ + freqSum);
+    do { MASK(ps[--i]->Symbol) = 0; } while (i != 0);
+  }
+}
+
+/* H->I changes:
+  NS2Indx
+  GlewCount, and Glue method
+  BinSum
+  See / EscFreq
+  CreateSuccessors updates more suffix contexts
+  UpdateModel consts.
+  PrevSuccess Update
+*/
+
+const IPpmd8 __archive_ppmd8_functions =
+{
+  &Ppmd8_Construct,
+  &Ppmd8_Alloc,
+  &Ppmd8_Free,
+  &Ppmd8_Init,
+  &Ppmd8_RangeDec_Init,
+  &Ppmd8_DecodeSymbol,
+};
diff --git a/libarchive/archive_ppmd8_private.h b/libarchive/archive_ppmd8_private.h
new file mode 100644
index 000000000000..534927860ebc
--- /dev/null
+++ b/libarchive/archive_ppmd8_private.h
@@ -0,0 +1,148 @@
+/* Ppmd8.h -- PPMdI codec
+2011-01-27 : Igor Pavlov : Public domain
+This code is based on:
+  PPMd var.I (2002): Dmitry Shkarin : Public domain
+  Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
+
+#ifndef __PPMD8_H
+#define __PPMD8_H
+
+#include "archive_ppmd_private.h"
+
+#define PPMD8_MIN_ORDER 2
+#define PPMD8_MAX_ORDER 16
+
+struct CPpmd8_Context_;
+
+typedef
+  #ifdef PPMD_32BIT
+    struct CPpmd8_Context_ *
+  #else
+    UInt32
+  #endif
+  CPpmd8_Context_Ref;
+
+#pragma pack(push, 1)
+
+typedef struct CPpmd8_Context_
+{
+  Byte NumStats;
+  Byte Flags;
+  UInt16 SummFreq;
+  CPpmd_State_Ref Stats;
+  CPpmd8_Context_Ref Suffix;
+} CPpmd8_Context;
+
+#pragma pack(pop)
+
+#define Ppmd8Context_OneState(p) ((CPpmd_State *)&(p)->SummFreq)
+
+/* The BUG in Shkarin's code for FREEZE mode was fixed, but that fixed
+   code is not compatible with original code for some files compressed
+   in FREEZE mode. So we disable FREEZE mode support. */
+
+enum
+{
+  PPMD8_RESTORE_METHOD_RESTART,
+  PPMD8_RESTORE_METHOD_CUT_OFF
+  #ifdef PPMD8_FREEZE_SUPPORT
+  , PPMD8_RESTORE_METHOD_FREEZE
+  #endif
+};
+
+typedef struct
+{
+  CPpmd8_Context *MinContext, *MaxContext;
+  CPpmd_State *FoundState;
+  unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder;
+  Int32 RunLength, InitRL; /* must be 32-bit at least */
+
+  UInt32 Size;
+  UInt32 GlueCount;
+  Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
+  UInt32 AlignOffset;
+  unsigned RestoreMethod;
+
+  /* Range Coder */
+  UInt32 Range;
+  UInt32 Code;
+  UInt32 Low;
+  union
+  {
+    IByteIn *In;
+    IByteOut *Out;
+  } Stream;
+
+  Byte Indx2Units[PPMD_NUM_INDEXES];
+  Byte Units2Indx[128];
+  CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
+  UInt32 Stamps[PPMD_NUM_INDEXES];
+
+  Byte NS2BSIndx[256], NS2Indx[260];
+  CPpmd_See DummySee, See[24][32];
+  UInt16 BinSumm[25][64];
+} CPpmd8;
+
+void Ppmd8_Construct(CPpmd8 *p);
+Bool Ppmd8_Alloc(CPpmd8 *p, UInt32 size);
+void Ppmd8_Free(CPpmd8 *p);
+void Ppmd8_Init(CPpmd8 *p, unsigned maxOrder, unsigned restoreMethod);
+#define Ppmd8_WasAllocated(p) ((p)->Base != NULL)
+
+
+/* ---------- Internal Functions ---------- */
+
+extern const Byte PPMD8_kExpEscape[16];
+
+#ifdef PPMD_32BIT
+  #define Ppmd8_GetPtr(p, ptr) (ptr)
+  #define Ppmd8_GetContext(p, ptr) (ptr)
+  #define Ppmd8_GetStats(p, ctx) ((ctx)->Stats)
+#else
+  #define Ppmd8_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
+  #define Ppmd8_GetContext(p, offs) ((CPpmd8_Context *)Ppmd8_GetPtr((p), (offs)))
+  #define Ppmd8_GetStats(p, ctx) ((CPpmd_State *)Ppmd8_GetPtr((p), ((ctx)->Stats)))
+#endif
+
+void Ppmd8_Update1(CPpmd8 *p);
+void Ppmd8_Update1_0(CPpmd8 *p);
+void Ppmd8_Update2(CPpmd8 *p);
+void Ppmd8_UpdateBin(CPpmd8 *p);
+
+#define Ppmd8_GetBinSumm(p) \
+    &p->BinSumm[p->NS2Indx[Ppmd8Context_OneState(p->MinContext)->Freq - 1]][ \
+    p->NS2BSIndx[Ppmd8_GetContext(p, p->MinContext->Suffix)->NumStats] + \
+    p->PrevSuccess + p->MinContext->Flags + ((p->RunLength >> 26) & 0x20)]
+
+CPpmd_See *Ppmd8_MakeEscFreq(CPpmd8 *p, unsigned numMasked, UInt32 *scale);
+
+
+/* ---------- Decode ---------- */
+
+Bool Ppmd8_RangeDec_Init(CPpmd8 *p);
+#define Ppmd8_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
+int Ppmd8_DecodeSymbol(CPpmd8 *p); /* returns: -1 as EndMarker, -2 as DataError */
+
+/* ---------- Encode ---------- */
+
+#define Ppmd8_RangeEnc_Init(p) { (p)->Low = 0; (p)->Range = 0xFFFFFFFF; }
+void Ppmd8_RangeEnc_FlushData(CPpmd8 *p);
+void Ppmd8_EncodeSymbol(CPpmd8 *p, int symbol); /* symbol = -1 means EndMarker */
+
+typedef struct
+{
+  /* Base Functions */
+  void (*Ppmd8_Construct)(CPpmd8 *p);
+  Bool (*Ppmd8_Alloc)(CPpmd8 *p, UInt32 size);
+  void (*Ppmd8_Free)(CPpmd8 *p);
+  void (*Ppmd8_Init)(CPpmd8 *p, unsigned max_order, unsigned restore_method);
+  #define Ppmd7_WasAllocated(p) ((p)->Base != NULL)
+
+  /* Decode Functions */
+  int (*Ppmd8_RangeDec_Init)(CPpmd8 *p);
+  int (*Ppmd8_DecodeSymbol)(CPpmd8 *p);
+} IPpmd8;
+
+extern const IPpmd8 __archive_ppmd8_functions;
+
+#endif
diff --git a/libarchive/archive_read_disk_posix.c b/libarchive/archive_read_disk_posix.c
index cdf7541238cf..09c366f5febe 100644
--- a/libarchive/archive_read_disk_posix.c
+++ b/libarchive/archive_read_disk_posix.c
@@ -856,7 +856,11 @@ next_entry(struct archive_read_disk *a, struct tree *t,
 	const struct stat *st; /* info to use for this entry */
 	const struct stat *lst;/* lstat() information */
 	const char *name;
-	int descend, r;
+	int delayed, delayed_errno, descend, r;
+	struct archive_string delayed_str;
+
+	delayed = ARCHIVE_OK;
+	archive_string_init(&delayed_str);
 
 	st = NULL;
 	lst = NULL;
@@ -885,11 +889,23 @@ next_entry(struct archive_read_disk *a, struct tree *t,
 		case TREE_REGULAR:
 			lst = tree_current_lstat(t);
 			if (lst == NULL) {
+			    if (errno == ENOENT && t->depth > 0) {
+				delayed = ARCHIVE_WARN;
+				delayed_errno = errno;
+				if (delayed_str.length == 0) {
+					archive_string_sprintf(&delayed_str,
+					    "%s", tree_current_path(t));
+				} else {
+					archive_string_sprintf(&delayed_str,
+					    " %s", tree_current_path(t));
+				}
+			    } else {
 				archive_set_error(&a->archive, errno,
 				    "%s: Cannot stat",
 				    tree_current_path(t));
 				tree_enter_initial_dir(t);
 				return (ARCHIVE_FAILED);
+			    }
 			}
 			break;
 		}	
@@ -1083,6 +1099,18 @@ next_entry(struct archive_read_disk *a, struct tree *t,
 	r = archive_read_disk_entry_from_file(&(a->archive), entry,
 		t->entry_fd, st);
 
+	if (r == ARCHIVE_OK) {
+		r = delayed;
+		if (r != ARCHIVE_OK) {
+			archive_string_sprintf(&delayed_str, ": %s",
+			    "File removed before we read it");
+			archive_set_error(&(a->archive), delayed_errno,
+			    "%s", delayed_str.s);
+		}
+	}
+	if (!archive_string_empty(&delayed_str))
+		archive_string_free(&delayed_str);
+
 	return (r);
 }
 
diff --git a/libarchive/archive_read_open_file.c b/libarchive/archive_read_open_file.c
index bfe933bf32e9..101dae6cd9e3 100644
--- a/libarchive/archive_read_open_file.c
+++ b/libarchive/archive_read_open_file.c
@@ -174,8 +174,7 @@ file_close(struct archive *a, void *client_data)
 	struct read_FILE_data *mine = (struct read_FILE_data *)client_data;
 
 	(void)a; /* UNUSED */
-	if (mine->buffer != NULL)
-		free(mine->buffer);
+	free(mine->buffer);
 	free(mine);
 	return (ARCHIVE_OK);
 }
diff --git a/libarchive/archive_read_support_format_7zip.c b/libarchive/archive_read_support_format_7zip.c
index bccbf896603b..8ca422ec0669 100644
--- a/libarchive/archive_read_support_format_7zip.c
+++ b/libarchive/archive_read_support_format_7zip.c
@@ -2964,13 +2964,7 @@ get_uncompressed_data(struct archive_read *a, const void **buff, size_t size,
 	if (zip->codec == _7Z_COPY && zip->codec2 == (unsigned long)-1) {
 		/* Copy mode. */
 
-		/*
-		 * Note: '1' here is a performance optimization.
-		 * Recall that the decompression layer returns a count of
-		 * available bytes; asking for more than that forces the
-		 * decompressor to combine reads by copying data.
-		 */
-		*buff = __archive_read_ahead(a, 1, &bytes_avail);
+		*buff = __archive_read_ahead(a, minimum, &bytes_avail);
 		if (bytes_avail <= 0) {
 			archive_set_error(&a->archive,
 			    ARCHIVE_ERRNO_FILE_FORMAT,
@@ -3323,8 +3317,7 @@ setup_decode_folder(struct archive_read *a, struct _7z_folder *folder,
 	 * Release the memory which the previous folder used for BCJ2.
 	 */
 	for (i = 0; i < 3; i++) {
-		if (zip->sub_stream_buff[i] != NULL)
-			free(zip->sub_stream_buff[i]);
+		free(zip->sub_stream_buff[i]);
 		zip->sub_stream_buff[i] = NULL;
 	}
 
diff --git a/libarchive/archive_read_support_format_ar.c b/libarchive/archive_read_support_format_ar.c
index 1b0205cc7058..296b7db04114 100644
--- a/libarchive/archive_read_support_format_ar.c
+++ b/libarchive/archive_read_support_format_ar.c
@@ -138,8 +138,7 @@ archive_read_format_ar_cleanup(struct archive_read *a)
 	struct ar *ar;
 
 	ar = (struct ar *)(a->format->data);
-	if (ar->strtab)
-		free(ar->strtab);
+	free(ar->strtab);
 	free(ar);
 	(a->format->data) = NULL;
 	return (ARCHIVE_OK);
@@ -388,9 +387,10 @@ _ar_read_header(struct archive_read *a, struct archive_entry *entry,
 
 	/*
 	 * "/" is the SVR4/GNU archive symbol table.
+	 * "/SYM64/" is the SVR4/GNU 64-bit variant archive symbol table.
 	 */
-	if (strcmp(filename, "/") == 0) {
-		archive_entry_copy_pathname(entry, "/");
+	if (strcmp(filename, "/") == 0 || strcmp(filename, "/SYM64/") == 0) {
+		archive_entry_copy_pathname(entry, filename);
 		/* Parse the time, owner, mode, size fields. */
 		r = ar_parse_common_header(ar, entry, h);
 		/* Force the file type to a regular file. */
diff --git a/libarchive/archive_read_support_format_cpio.c b/libarchive/archive_read_support_format_cpio.c
index 67d5b21eebbe..1c96e6ac195f 100644
--- a/libarchive/archive_read_support_format_cpio.c
+++ b/libarchive/archive_read_support_format_cpio.c
@@ -955,8 +955,7 @@ archive_read_format_cpio_cleanup(struct archive_read *a)
         while (cpio->links_head != NULL) {
                 struct links_entry *lp = cpio->links_head->next;
 
-                if (cpio->links_head->name)
-                        free(cpio->links_head->name);
+                free(cpio->links_head->name);
                 free(cpio->links_head);
                 cpio->links_head = lp;
         }
diff --git a/libarchive/archive_read_support_format_iso9660.c b/libarchive/archive_read_support_format_iso9660.c
index 28acfefbba8a..db14d41dff45 100644
--- a/libarchive/archive_read_support_format_iso9660.c
+++ b/libarchive/archive_read_support_format_iso9660.c
@@ -1724,8 +1724,7 @@ archive_read_format_iso9660_cleanup(struct archive_read *a)
 	free(iso9660->read_ce_req.reqs);
 	archive_string_free(&iso9660->pathname);
 	archive_string_free(&iso9660->previous_pathname);
-	if (iso9660->pending_files.files)
-		free(iso9660->pending_files.files);
+	free(iso9660->pending_files.files);
 #ifdef HAVE_ZLIB_H
 	free(iso9660->entry_zisofs.uncompressed_buffer);
 	free(iso9660->entry_zisofs.block_pointers);
@@ -2102,6 +2101,7 @@ parse_rockridge(struct archive_read *a, struct file_info *file,
     const unsigned char *p, const unsigned char *end)
 {
 	struct iso9660 *iso9660;
+	int entry_seen = 0;
 
 	iso9660 = (struct iso9660 *)(a->format->data);
 
@@ -2257,8 +2257,16 @@ parse_rockridge(struct archive_read *a, struct file_info *file,
 		}
 
 		p += p[2];
+		entry_seen = 1;
+	}
+
+	if (entry_seen)
+		return (ARCHIVE_OK);
+	else {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+				  "Tried to parse Rockridge extensions, but none found");
+		return (ARCHIVE_WARN);
 	}
-	return (ARCHIVE_OK);
 }
 
 static int
@@ -3029,8 +3037,7 @@ heap_add_entry(struct archive_read *a, struct heap_queue *heap,
 		if (heap->allocated)
 			memcpy(new_pending_files, heap->files,
 			    heap->allocated * sizeof(new_pending_files[0]));
-		if (heap->files != NULL)
-			free(heap->files);
+		free(heap->files);
 		heap->files = new_pending_files;
 		heap->allocated = new_size;
 	}
diff --git a/libarchive/archive_read_support_format_rar5.c b/libarchive/archive_read_support_format_rar5.c
index 9314f7a9f9c3..22462a6e18da 100644
--- a/libarchive/archive_read_support_format_rar5.c
+++ b/libarchive/archive_read_support_format_rar5.c
@@ -588,8 +588,7 @@ static int run_filter(struct archive_read* a, struct filter_info* flt) {
     int ret;
     struct rar5* rar = get_context(a);
 
-    if(rar->cstate.filtered_buf)
-        free(rar->cstate.filtered_buf);
+    free(rar->cstate.filtered_buf);
 
     rar->cstate.filtered_buf = malloc(flt->block_length);
     if(!rar->cstate.filtered_buf) {
@@ -772,7 +771,7 @@ static void free_filters(struct rar5* rar) {
         struct filter_info* f = NULL;
 
         /* Pop_front will also decrease the collection's size. */
-        if(CDE_OK == cdeque_pop_front(d, cdeque_filter_p(&f)) && f != NULL)
+        if (CDE_OK == cdeque_pop_front(d, cdeque_filter_p(&f)))
             free(f);
     }
 
@@ -873,7 +872,7 @@ static int read_var(struct archive_read* a, uint64_t* pvalue,
 
         /* Strip the MSB from the input byte and add the resulting number
          * to the `result`. */
-        result += (b & 0x7F) << shift;
+        result += (b & (uint64_t)0x7F) << shift;
 
         /* MSB set to 1 means we need to continue decoding process. MSB set
          * to 0 means we're done.
@@ -1301,7 +1300,7 @@ static int process_head_file(struct archive_read* a, struct rar5* rar,
     char name_utf8_buf[2048 * 4];
     const uint8_t* p;
 
-    memset(entry, 0, sizeof(struct archive_entry));
+    archive_entry_clear(entry);
 
     /* Do not reset file context if we're switching archives. */
     if(!rar->cstate.switch_multivolume) {
@@ -1795,8 +1794,14 @@ static int skip_base_block(struct archive_read* a) {
     int ret;
     struct rar5* rar = get_context(a);
 
-    struct archive_entry entry;
-    ret = process_base_block(a, &entry);
+    /* Create a new local archive_entry structure that will be operated on
+     * by header reader; operations on this archive_entry will be discarded.
+     */
+    struct archive_entry* entry = archive_entry_new();
+    ret = process_base_block(a, entry);
+
+    /* Discard operations on this archive_entry structure. */
+    archive_entry_free(entry);
 
     if(rar->generic.last_header_id == 2 && rar->generic.split_before > 0)
         return ARCHIVE_OK;
@@ -1836,13 +1841,14 @@ static int rar5_read_header(struct archive_read *a,
 
 static void init_unpack(struct rar5* rar) {
     rar->file.calculated_crc32 = 0;
-    rar->cstate.window_mask = rar->cstate.window_size - 1;
+    if (rar->cstate.window_size)
+        rar->cstate.window_mask = rar->cstate.window_size - 1;
+    else
+        rar->cstate.window_mask = 0;
 
-    if(rar->cstate.window_buf)
-        free(rar->cstate.window_buf);
+    free(rar->cstate.window_buf);
 
-    if(rar->cstate.filtered_buf)
-        free(rar->cstate.filtered_buf);
+    free(rar->cstate.filtered_buf);
 
     rar->cstate.window_buf = calloc(1, rar->cstate.window_size);
     rar->cstate.filtered_buf = calloc(1, rar->cstate.window_size);
@@ -2676,13 +2682,21 @@ static int merge_block(struct archive_read* a, ssize_t block_size,
     if(rar->vol.push_buf)
         free((void*) rar->vol.push_buf);
 
-    rar->vol.push_buf = malloc(block_size);
+    /* Increasing the allocation block by 8 is due to bit reading functions,
+     * which are using additional 2 or 4 bytes. Allocating the block size
+     * by exact value would make bit reader perform reads from invalid memory
+     * block when reading the last byte from the buffer. */
+    rar->vol.push_buf = malloc(block_size + 8);
     if(!rar->vol.push_buf) {
         archive_set_error(&a->archive, ENOMEM, "Can't allocate memory for a "
                 "merge block buffer.");
         return ARCHIVE_FATAL;
     }
 
+    /* Valgrind complains if the extension block for bit reader is not
+     * initialized, so initialize it. */
+    memset(&rar->vol.push_buf[block_size], 0, 8);
+
     /* A single block can span across multiple multivolume archive files,
      * so we use a loop here. This loop will consume enough multivolume
      * archive files until the whole block is read. */
@@ -3394,14 +3408,11 @@ static int64_t rar5_seek_data(struct archive_read *a, int64_t offset,
 static int rar5_cleanup(struct archive_read *a) {
     struct rar5* rar = get_context(a);
 
-    if(rar->cstate.window_buf)
-        free(rar->cstate.window_buf);
+    free(rar->cstate.window_buf);
 
-    if(rar->cstate.filtered_buf)
-        free(rar->cstate.filtered_buf);
+    free(rar->cstate.filtered_buf);
 
-    if(rar->vol.push_buf)
-        free(rar->vol.push_buf);
+    free(rar->vol.push_buf);
 
     free_filters(rar);
     cdeque_free(&rar->cstate.filters);
diff --git a/libarchive/archive_read_support_format_xar.c b/libarchive/archive_read_support_format_xar.c
index c4dd915a2c0e..6ff9cc4be5ff 100644
--- a/libarchive/archive_read_support_format_xar.c
+++ b/libarchive/archive_read_support_format_xar.c
@@ -1229,8 +1229,7 @@ heap_add_entry(struct archive_read *a,
 		}
 		memcpy(new_pending_files, heap->files,
 		    heap->allocated * sizeof(new_pending_files[0]));
-		if (heap->files != NULL)
-			free(heap->files);
+		free(heap->files);
 		heap->files = new_pending_files;
 		heap->allocated = new_size;
 	}
diff --git a/libarchive/archive_read_support_format_zip.c b/libarchive/archive_read_support_format_zip.c
index 420004dbabbc..737a25eb1d06 100644
--- a/libarchive/archive_read_support_format_zip.c
+++ b/libarchive/archive_read_support_format_zip.c
@@ -52,6 +52,12 @@ __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_support_format_zip.c 201102
 #ifdef HAVE_ZLIB_H
 #include <zlib.h>
 #endif
+#ifdef HAVE_BZLIB_H
+#include <bzlib.h>
+#endif
+#ifdef HAVE_LZMA_H
+#include <lzma.h>
+#endif
 
 #include "archive.h"
 #include "archive_digest_private.h"
@@ -63,6 +69,7 @@ __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_support_format_zip.c 201102
 #include "archive_private.h"
 #include "archive_rb.h"
 #include "archive_read_private.h"
+#include "archive_ppmd8_private.h"
 
 #ifndef HAVE_ZLIB_H
 #include "archive_crc32.h"
@@ -165,13 +172,29 @@ struct zip {
 	char			decompress_init;
 	char			end_of_entry;
 
-#ifdef HAVE_ZLIB_H
 	unsigned char 		*uncompressed_buffer;
 	size_t 			uncompressed_buffer_size;
+
+#ifdef HAVE_ZLIB_H
 	z_stream		stream;
 	char			stream_valid;
 #endif
 
+#if HAVE_LZMA_H && HAVE_LIBLZMA
+	lzma_stream		zipx_lzma_stream;
+	char            zipx_lzma_valid;
+#endif
+
+#ifdef HAVE_BZLIB_H
+	bz_stream		bzstream;
+	char            bzstream_valid;
+#endif
+
+	IByteIn			zipx_ppmd_stream;
+	ssize_t			zipx_ppmd_read_compressed;
+	CPpmd8			ppmd8;
+	char			ppmd8_valid;
+
 	struct archive_string_conv *sconv;
 	struct archive_string_conv *sconv_default;
 	struct archive_string_conv *sconv_utf8;
@@ -222,6 +245,27 @@ struct zip {
 /* Many systems define min or MIN, but not all. */
 #define	zipmin(a,b) ((a) < (b) ? (a) : (b))
 
+/* This function is used by Ppmd8_DecodeSymbol during decompression of Ppmd8
+ * streams inside ZIP files. It has 2 purposes: one is to fetch the next
+ * compressed byte from the stream, second one is to increase the counter how
+ * many compressed bytes were read. */
+static Byte
+ppmd_read(void* p) {
+	/* Get the handle to current decompression context. */
+	struct archive_read *a = ((IByteIn*)p)->a;
+	struct zip *zip = (struct zip*) a->format->data;
+
+	/* Fetch next byte. */
+	const uint8_t* data = __archive_read_ahead(a, 1, NULL);
+	__archive_read_consume(a, 1);
+
+	/* Increment the counter. */
+	++zip->zipx_ppmd_read_compressed;
+
+	/* Return the next compressed byte. */
+	return data[0];
+}
+
 /* ------------------------------------------------------------------------ */
 
 /*
@@ -372,6 +416,8 @@ static const struct {
 	{17, "reserved"}, /* Reserved by PKWARE */
 	{18, "ibm-terse-new"}, /* File is compressed using IBM TERSE (new) */
 	{19, "ibm-lz777"},/* IBM LZ77 z Architecture (PFS) */
+	{95, "xz"},       /* XZ compressed data */
+	{96, "jpeg"},     /* JPEG compressed data */
 	{97, "wav-pack"}, /* WavPack compressed data */
 	{98, "ppmd-1"},   /* PPMd version I, Rev 1 */
 	{99, "aes"}       /* WinZip AES encryption  */
@@ -1296,6 +1342,695 @@ zip_read_data_none(struct archive_read *a, const void **_buff,
 	return (ARCHIVE_OK);
 }
 
+static int
+consume_optional_marker(struct archive_read *a, struct zip *zip)
+{
+	if (zip->end_of_entry && (zip->entry->zip_flags & ZIP_LENGTH_AT_END)) {
+		const char *p;
+
+		if (NULL == (p = __archive_read_ahead(a, 24, NULL))) {
+			archive_set_error(&a->archive,
+			    ARCHIVE_ERRNO_FILE_FORMAT,
+			    "Truncated ZIP end-of-file record");
+			return (ARCHIVE_FATAL);
+		}
+		/* Consume the optional PK\007\010 marker. */
+		if (p[0] == 'P' && p[1] == 'K' &&
+		    p[2] == '\007' && p[3] == '\010') {
+			p += 4;
+			zip->unconsumed = 4;
+		}
+		if (zip->entry->flags & LA_USED_ZIP64) {
+			uint64_t compressed, uncompressed;
+			zip->entry->crc32 = archive_le32dec(p);
+			compressed = archive_le64dec(p + 4);
+			uncompressed = archive_le64dec(p + 12);
+			if (compressed > INT64_MAX || uncompressed > INT64_MAX) {
+				archive_set_error(&a->archive,
+				    ARCHIVE_ERRNO_FILE_FORMAT,
+				    "Overflow of 64-bit file sizes");
+				return ARCHIVE_FAILED;
+			}
+			zip->entry->compressed_size = compressed;
+			zip->entry->uncompressed_size = uncompressed;
+			zip->unconsumed += 20;
+		} else {
+			zip->entry->crc32 = archive_le32dec(p);
+			zip->entry->compressed_size = archive_le32dec(p + 4);
+			zip->entry->uncompressed_size = archive_le32dec(p + 8);
+			zip->unconsumed += 12;
+		}
+	}
+
+    return (ARCHIVE_OK);
+}
+
+#if HAVE_LZMA_H && HAVE_LIBLZMA
+static int
+zipx_xz_init(struct archive_read *a, struct zip *zip)
+{
+	lzma_ret r;
+
+	if(zip->zipx_lzma_valid) {
+		lzma_end(&zip->zipx_lzma_stream);
+		zip->zipx_lzma_valid = 0;
+	}
+
+	memset(&zip->zipx_lzma_stream, 0, sizeof(zip->zipx_lzma_stream));
+	r = lzma_stream_decoder(&zip->zipx_lzma_stream, UINT64_MAX, 0);
+	if (r != LZMA_OK) {
+		archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC,
+		    "xz initialization failed(%d)",
+		    r);
+
+		return (ARCHIVE_FAILED);
+	}
+
+	zip->zipx_lzma_valid = 1;
+
+	free(zip->uncompressed_buffer);
+
+	zip->uncompressed_buffer_size = 256 * 1024;
+	zip->uncompressed_buffer =
+	    (uint8_t*) malloc(zip->uncompressed_buffer_size);
+	if (zip->uncompressed_buffer == NULL) {
+		archive_set_error(&a->archive, ENOMEM,
+		    "No memory for xz decompression");
+		    return (ARCHIVE_FATAL);
+	}
+
+	zip->decompress_init = 1;
+	return (ARCHIVE_OK);
+}
+
+static int
+zipx_lzma_alone_init(struct archive_read *a, struct zip *zip)
+{
+	lzma_ret r;
+	const uint8_t* p;
+
+#pragma pack(push)
+#pragma pack(1)
+	struct _alone_header {
+	    uint8_t bytes[5];
+	    uint64_t uncompressed_size;
+	} alone_header;
+#pragma pack(pop)
+
+	/* To unpack ZIPX's "LZMA" (id 14) stream we can use standard liblzma that
+	 * is a part of XZ Utils. The stream format stored inside ZIPX file is a
+	 * modified "lzma alone" file format, that was used by the `lzma` utility
+	 * which was later deprecated in favour of `xz` utility. Since those
+	 * formats are nearly the same, we can use a standard "lzma alone" decoder
+	 * from XZ Utils. */
+
+	memset(&zip->zipx_lzma_stream, 0, sizeof(zip->zipx_lzma_stream));
+	r = lzma_alone_decoder(&zip->zipx_lzma_stream, UINT64_MAX);
+	if (r != LZMA_OK) {
+		archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC,
+		    "lzma initialization failed(%d)", r);
+
+		return (ARCHIVE_FAILED);
+	}
+
+	/* Flag the cleanup function that we want our lzma-related structures
+	 * to be freed later. */
+	zip->zipx_lzma_valid = 1;
+
+	/* The "lzma alone" file format and the stream format inside ZIPx are
+	 * almost the same. Here's an example of a structure of "lzma alone"
+	 * format:
+	 *
+	 * $ cat /bin/ls | lzma | xxd | head -n 1
+	 * 00000000: 5d00 0080 00ff ffff ffff ffff ff00 2814
+	 *
+	 *    5 bytes        8 bytes        n bytes
+	 * <lzma_params><uncompressed_size><data...>
+	 *
+	 * lzma_params is a 5-byte blob that has to be decoded to extract
+	 * parameters of this LZMA stream. The uncompressed_size field is an
+	 * uint64_t value that contains information about the size of the
+	 * uncompressed file, or UINT64_MAX if this value is unknown. The <data...>
+	 * part is the actual lzma-compressed data stream.
+	 *
+	 * Now here's the structure of the stream inside the ZIPX file:
+	 *
+	 * $ cat stream_inside_zipx | xxd | head -n 1
+	 * 00000000: 0914 0500 5d00 8000 0000 2814 .... ....
+	 *
+	 *  2byte   2byte    5 bytes     n bytes
+	 * <magic1><magic2><lzma_params><data...>
+	 *
+	 * This means that the ZIPX file contains an additional magic1 and magic2
+	 * headers, the lzma_params field contains the same parameter set as in the
+	 * "lzma alone" format, and the <data...> field is the same as in the "lzma
+	 * alone" format as well. Note that also the zipx format is missing the
+	 * uncompressed_size field.
+	 *
+	 * So, in order to use the "lzma alone" decoder for the zipx lzma stream,
+	 * we simply need to shuffle around some fields, prepare a new lzma alone
+	 * header, feed it into lzma alone decoder so it will initialize itself
+	 * properly, and then we can start feeding normal zipx lzma stream into the
+	 * decoder.
+	 */
+
+	/* Read magic1,magic2,lzma_params from the ZIPX stream. */
+	if((p = __archive_read_ahead(a, 9, NULL)) == NULL) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Truncated lzma data");
+		return (ARCHIVE_FATAL);
+	}
+
+	if(p[2] != 0x05 || p[3] != 0x00) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Invalid lzma data");
+		return (ARCHIVE_FATAL);
+	}
+
+	/* Prepare an lzma alone header: copy the lzma_params blob into a proper
+	 * place into the lzma alone header. */
+	memcpy(&alone_header.bytes[0], p + 4, 5);
+
+	/* Initialize the 'uncompressed size' field to unknown; we'll manually
+	 * monitor how many bytes there are still to be uncompressed. */
+	alone_header.uncompressed_size = UINT64_MAX;
+
+	if(!zip->uncompressed_buffer) {
+		zip->uncompressed_buffer_size = 256 * 1024;
+		zip->uncompressed_buffer =
+			(uint8_t*) malloc(zip->uncompressed_buffer_size);
+
+		if (zip->uncompressed_buffer == NULL) {
+			archive_set_error(&a->archive, ENOMEM,
+			    "No memory for lzma decompression");
+			return (ARCHIVE_FATAL);
+		}
+	}
+
+	zip->zipx_lzma_stream.next_in = (void*) &alone_header;
+	zip->zipx_lzma_stream.avail_in = sizeof(alone_header);
+	zip->zipx_lzma_stream.total_in = 0;
+	zip->zipx_lzma_stream.next_out = zip->uncompressed_buffer;
+	zip->zipx_lzma_stream.avail_out = zip->uncompressed_buffer_size;
+	zip->zipx_lzma_stream.total_out = 0;
+
+	/* Feed only the header into the lzma alone decoder. This will effectively
+	 * initialize the decoder, and will not produce any output bytes yet. */
+	r = lzma_code(&zip->zipx_lzma_stream, LZMA_RUN);
+	if (r != LZMA_OK) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_PROGRAMMER,
+		    "lzma stream initialization error");
+		return ARCHIVE_FATAL;
+	}
+
+	/* We've already consumed some bytes, so take this into account. */
+	__archive_read_consume(a, 9);
+	zip->entry_bytes_remaining -= 9;
+	zip->entry_compressed_bytes_read += 9;
+
+	zip->decompress_init = 1;
+	return (ARCHIVE_OK);
+}
+
+static int
+zip_read_data_zipx_xz(struct archive_read *a, const void **buff,
+	size_t *size, int64_t *offset)
+{
+	struct zip* zip = (struct zip *)(a->format->data);
+	int ret;
+	lzma_ret lz_ret;
+	const void* compressed_buf;
+	ssize_t bytes_avail, in_bytes, to_consume = 0;
+
+	(void) offset; /* UNUSED */
+
+	/* Initialize decompressor if not yet initialized. */
+	if (!zip->decompress_init) {
+		ret = zipx_xz_init(a, zip);
+		if (ret != ARCHIVE_OK)
+			return (ret);
+	}
+
+	compressed_buf = __archive_read_ahead(a, 1, &bytes_avail);
+	if (bytes_avail < 0) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Truncated xz file body");
+		return (ARCHIVE_FATAL);
+	}
+
+	in_bytes = zipmin(zip->entry_bytes_remaining, bytes_avail);
+	zip->zipx_lzma_stream.next_in = compressed_buf;
+	zip->zipx_lzma_stream.avail_in = in_bytes;
+	zip->zipx_lzma_stream.total_in = 0;
+	zip->zipx_lzma_stream.next_out = zip->uncompressed_buffer;
+	zip->zipx_lzma_stream.avail_out = zip->uncompressed_buffer_size;
+	zip->zipx_lzma_stream.total_out = 0;
+
+	/* Perform the decompression. */
+	lz_ret = lzma_code(&zip->zipx_lzma_stream, LZMA_RUN);
+	switch(lz_ret) {
+		case LZMA_DATA_ERROR:
+			archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+			    "xz data error (error %d)", (int) lz_ret);
+			return (ARCHIVE_FATAL);
+
+		case LZMA_NO_CHECK:
+		case LZMA_OK:
+			break;
+
+		default:
+			archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+			    "xz unknown error %d", (int) lz_ret);
+			return (ARCHIVE_FATAL);
+
+		case LZMA_STREAM_END:
+			lzma_end(&zip->zipx_lzma_stream);
+			zip->zipx_lzma_valid = 0;
+
+			if((int64_t) zip->zipx_lzma_stream.total_in !=
+			    zip->entry_bytes_remaining)
+			{
+				archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+				    "xz premature end of stream");
+				return (ARCHIVE_FATAL);
+			}
+
+			zip->end_of_entry = 1;
+			break;
+	}
+
+	to_consume = zip->zipx_lzma_stream.total_in;
+
+	__archive_read_consume(a, to_consume);
+	zip->entry_bytes_remaining -= to_consume;
+	zip->entry_compressed_bytes_read += to_consume;
+	zip->entry_uncompressed_bytes_read += zip->zipx_lzma_stream.total_out;
+
+	*size = zip->zipx_lzma_stream.total_out;
+	*buff = zip->uncompressed_buffer;
+
+	ret = consume_optional_marker(a, zip);
+	if (ret != ARCHIVE_OK)
+		return (ret);
+
+	return (ARCHIVE_OK);
+}
+
+static int
+zip_read_data_zipx_lzma_alone(struct archive_read *a, const void **buff,
+    size_t *size, int64_t *offset)
+{
+	struct zip* zip = (struct zip *)(a->format->data);
+	int ret;
+	lzma_ret lz_ret;
+	const void* compressed_buf;
+	ssize_t bytes_avail, in_bytes, to_consume;
+
+	(void) offset; /* UNUSED */
+
+	/* Initialize decompressor if not yet initialized. */
+	if (!zip->decompress_init) {
+		ret = zipx_lzma_alone_init(a, zip);
+		if (ret != ARCHIVE_OK)
+			return (ret);
+	}
+
+	/* Fetch more compressed data. The same note as in deflate handler applies
+	 * here as well:
+	 *
+	 * Note: '1' here is a performance optimization. Recall that the
+	 * decompression layer returns a count of available bytes; asking for more
+	 * than that forces the decompressor to combine reads by copying data.
+	 */
+	compressed_buf = __archive_read_ahead(a, 1, &bytes_avail);
+	if (bytes_avail < 0) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Truncated lzma file body");
+		return (ARCHIVE_FATAL);
+	}
+
+	/* Set decompressor parameters. */
+	in_bytes = zipmin(zip->entry_bytes_remaining, bytes_avail);
+
+	zip->zipx_lzma_stream.next_in = compressed_buf;
+	zip->zipx_lzma_stream.avail_in = in_bytes;
+	zip->zipx_lzma_stream.total_in = 0;
+	zip->zipx_lzma_stream.next_out = zip->uncompressed_buffer;
+	zip->zipx_lzma_stream.avail_out =
+		/* These lzma_alone streams lack end of stream marker, so let's make
+		 * sure the unpacker won't try to unpack more than it's supposed to. */
+		zipmin((int64_t) zip->uncompressed_buffer_size,
+		    zip->entry->uncompressed_size -
+		    zip->entry_uncompressed_bytes_read);
+	zip->zipx_lzma_stream.total_out = 0;
+
+	/* Perform the decompression. */
+	lz_ret = lzma_code(&zip->zipx_lzma_stream, LZMA_RUN);
+	switch(lz_ret) {
+		case LZMA_DATA_ERROR:
+			archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+			    "lzma data error (error %d)", (int) lz_ret);
+			return (ARCHIVE_FATAL);
+
+		case LZMA_OK:
+			break;
+
+		default:
+			archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+			    "lzma unknown error %d", (int) lz_ret);
+			return (ARCHIVE_FATAL);
+	}
+
+	to_consume = zip->zipx_lzma_stream.total_in;
+
+	/* Update pointers. */
+	__archive_read_consume(a, to_consume);
+	zip->entry_bytes_remaining -= to_consume;
+	zip->entry_compressed_bytes_read += to_consume;
+	zip->entry_uncompressed_bytes_read += zip->zipx_lzma_stream.total_out;
+
+	if(zip->entry_bytes_remaining == 0) {
+		zip->end_of_entry = 1;
+	}
+
+	/* Return values. */
+	*size = zip->zipx_lzma_stream.total_out;
+	*buff = zip->uncompressed_buffer;
+
+	/* Behave the same way as during deflate decompression. */
+	ret = consume_optional_marker(a, zip);
+	if (ret != ARCHIVE_OK)
+		return (ret);
+
+	/* Free lzma decoder handle because we'll no longer need it. */
+	if(zip->end_of_entry) {
+		lzma_end(&zip->zipx_lzma_stream);
+		zip->zipx_lzma_valid = 0;
+	}
+
+	/* If we're here, then we're good! */
+	return (ARCHIVE_OK);
+}
+#endif /* HAVE_LZMA_H && HAVE_LIBLZMA */
+
+static int
+zipx_ppmd8_init(struct archive_read *a, struct zip *zip)
+{
+	const void* p;
+	uint32_t val;
+	uint32_t order;
+	uint32_t mem;
+	uint32_t restore_method;
+
+	/* Remove previous decompression context if it exists. */
+	if(zip->ppmd8_valid) {
+		__archive_ppmd8_functions.Ppmd8_Free(&zip->ppmd8);
+		zip->ppmd8_valid = 0;
+	}
+
+	/* Create a new decompression context. */
+	__archive_ppmd8_functions.Ppmd8_Construct(&zip->ppmd8);
+
+	/* Setup function pointers required by Ppmd8 decompressor. The
+	 * 'ppmd_read' function will feed new bytes to the decompressor,
+	 * and will increment the 'zip->zipx_ppmd_read_compressed' counter. */
+	zip->ppmd8.Stream.In = &zip->zipx_ppmd_stream;
+	zip->zipx_ppmd_stream.a = a;
+	zip->zipx_ppmd_stream.Read = &ppmd_read;
+
+	/* Reset number of read bytes to 0. */
+	zip->zipx_ppmd_read_compressed = 0;
+
+	/* Read Ppmd8 header (2 bytes). */
+	p = __archive_read_ahead(a, 2, NULL);
+	if(!p) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Truncated file data in PPMd8 stream");
+		return (ARCHIVE_FATAL);
+	}
+	__archive_read_consume(a, 2);
+
+	/* Decode the stream's compression parameters. */
+	val = archive_le16dec(p);
+	order = (val & 15) + 1;
+	mem = ((val >> 4) & 0xff) + 1;
+	restore_method = (val >> 12);
+
+	if(order < 2 || restore_method > 2) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Invalid parameter set in PPMd8 stream (order=%d, "
+		    "restore=%d)", order, restore_method);
+		return (ARCHIVE_FAILED);
+	}
+
+	/* Allocate the memory needed to properly decompress the file. */
+	if(!__archive_ppmd8_functions.Ppmd8_Alloc(&zip->ppmd8, mem << 20)) {
+		archive_set_error(&a->archive, ENOMEM,
+		    "Unable to allocate memory for PPMd8 stream: %d bytes",
+		    mem << 20);
+		return (ARCHIVE_FATAL);
+	}
+
+	/* Signal the cleanup function to release Ppmd8 context in the
+	 * cleanup phase. */
+	zip->ppmd8_valid = 1;
+
+	/* Perform further Ppmd8 initialization. */
+	if(!__archive_ppmd8_functions.Ppmd8_RangeDec_Init(&zip->ppmd8)) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_PROGRAMMER,
+		    "PPMd8 stream range decoder initialization error");
+		return (ARCHIVE_FATAL);
+	}
+
+	__archive_ppmd8_functions.Ppmd8_Init(&zip->ppmd8, order, restore_method);
+
+	/* Allocate the buffer that will hold uncompressed data. */
+	free(zip->uncompressed_buffer);
+
+	zip->uncompressed_buffer_size = 256 * 1024;
+	zip->uncompressed_buffer =
+	    (uint8_t*) malloc(zip->uncompressed_buffer_size);
+
+	if(zip->uncompressed_buffer == NULL) {
+		archive_set_error(&a->archive, ENOMEM,
+		    "No memory for PPMd8 decompression");
+		return ARCHIVE_FATAL;
+	}
+
+	/* Ppmd8 initialization is done. */
+	zip->decompress_init = 1;
+
+	/* We've already read 2 bytes in the output stream. Additionally,
+	 * Ppmd8 initialization code could read some data as well. So we
+	 * are advancing the stream by 2 bytes plus whatever number of
+	 * bytes Ppmd8 init function used. */
+	zip->entry_compressed_bytes_read += 2 + zip->zipx_ppmd_read_compressed;
+
+	return ARCHIVE_OK;
+}
+
+static int
+zip_read_data_zipx_ppmd(struct archive_read *a, const void **buff,
+    size_t *size, int64_t *offset)
+{
+	struct zip* zip = (struct zip *)(a->format->data);
+	int ret;
+	size_t consumed_bytes = 0;
+	ssize_t bytes_avail = 0;
+
+	(void) offset; /* UNUSED */
+
+	/* If we're here for the first time, initialize Ppmd8 decompression
+	 * context first. */
+	if(!zip->decompress_init) {
+		ret = zipx_ppmd8_init(a, zip);
+		if(ret != ARCHIVE_OK)
+			return ret;
+	}
+
+	/* Fetch for more data. We're reading 1 byte here, but libarchive should
+	 * prefetch more bytes. */
+	(void) __archive_read_ahead(a, 1, &bytes_avail);
+	if(bytes_avail < 0) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Truncated PPMd8 file body");
+		return (ARCHIVE_FATAL);
+	}
+
+	/* This counter will be updated inside ppmd_read(), which at one
+	 * point will be called by Ppmd8_DecodeSymbol. */
+	zip->zipx_ppmd_read_compressed = 0;
+
+	/* Decompression loop. */
+	do {
+		int sym = __archive_ppmd8_functions.Ppmd8_DecodeSymbol(&zip->ppmd8);
+		if(sym < 0) {
+			zip->end_of_entry = 1;
+			break;
+		}
+
+		zip->uncompressed_buffer[consumed_bytes] = (uint8_t) sym;
+		++consumed_bytes;
+	} while(consumed_bytes < zip->uncompressed_buffer_size);
+
+	/* Update pointers for libarchive. */
+	*buff = zip->uncompressed_buffer;
+	*size = consumed_bytes;
+
+	/* Update pointers so we can continue decompression in another call. */
+	zip->entry_bytes_remaining -= zip->zipx_ppmd_read_compressed;
+	zip->entry_compressed_bytes_read += zip->zipx_ppmd_read_compressed;
+	zip->entry_uncompressed_bytes_read += consumed_bytes;
+
+	/* If we're at the end of stream, deinitialize Ppmd8 context. */
+	if(zip->end_of_entry) {
+		__archive_ppmd8_functions.Ppmd8_Free(&zip->ppmd8);
+		zip->ppmd8_valid = 0;
+	}
+
+	/* Seek for optional marker, same way as in each zip entry. */
+	ret = consume_optional_marker(a, zip);
+	if (ret != ARCHIVE_OK)
+		return ret;
+
+	return ARCHIVE_OK;
+}
+
+#ifdef HAVE_BZLIB_H
+static int
+zipx_bzip2_init(struct archive_read *a, struct zip *zip)
+{
+	int r;
+
+	/* Deallocate already existing BZ2 decompression context if it 
+	 * exists. */
+	if(zip->bzstream_valid) {
+		BZ2_bzDecompressEnd(&zip->bzstream);
+		zip->bzstream_valid = 0;
+	}
+
+	/* Allocate a new BZ2 decompression context. */
+	memset(&zip->bzstream, 0, sizeof(bz_stream));
+	r = BZ2_bzDecompressInit(&zip->bzstream, 0, 1);
+	if(r != BZ_OK) {
+		archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC,
+		    "bzip2 initialization failed(%d)",
+		    r);
+
+		return ARCHIVE_FAILED;
+	}
+
+	/* Mark the bzstream field to be released in cleanup phase. */
+	zip->bzstream_valid = 1;
+
+	/* (Re)allocate the buffer that will contain decompressed bytes. */
+	free(zip->uncompressed_buffer);
+
+	zip->uncompressed_buffer_size = 256 * 1024;
+	zip->uncompressed_buffer =
+	    (uint8_t*) malloc(zip->uncompressed_buffer_size);
+	if (zip->uncompressed_buffer == NULL) {
+		archive_set_error(&a->archive, ENOMEM,
+		    "No memory for bzip2 decompression");
+		    return ARCHIVE_FATAL;
+	}
+
+	/* Initialization done. */
+	zip->decompress_init = 1;
+	return ARCHIVE_OK;
+}
+
+static int
+zip_read_data_zipx_bzip2(struct archive_read *a, const void **buff,
+    size_t *size, int64_t *offset)
+{
+	struct zip *zip = (struct zip *)(a->format->data);
+	ssize_t bytes_avail = 0, in_bytes, to_consume;
+	const void *compressed_buff;
+	int r;
+	uint64_t total_out;
+
+	(void) offset; /* UNUSED */
+
+	/* Initialize decompression context if we're here for the first time. */
+	if(!zip->decompress_init) {
+		r = zipx_bzip2_init(a, zip);
+		if(r != ARCHIVE_OK)
+			return r;
+	}
+
+	/* Fetch more compressed bytes. */
+	compressed_buff = __archive_read_ahead(a, 1, &bytes_avail);
+	if(bytes_avail < 0) {
+		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
+		    "Truncated bzip2 file body");
+		return (ARCHIVE_FATAL);
+	}
+
+	in_bytes = zipmin(zip->entry_bytes_remaining, bytes_avail);
+
+	/* Setup buffer boundaries. */
+	zip->bzstream.next_in = (char*)(uintptr_t) compressed_buff;
+	zip->bzstream.avail_in = in_bytes;
+	zip->bzstream.total_in_hi32 = 0;
+	zip->bzstream.total_in_lo32 = 0;
+	zip->bzstream.next_out = (char*) zip->uncompressed_buffer;
+	zip->bzstream.avail_out = zip->uncompressed_buffer_size;
+	zip->bzstream.total_out_hi32 = 0;
+	zip->bzstream.total_out_lo32 = 0;
+
+	/* Perform the decompression. */
+	r = BZ2_bzDecompress(&zip->bzstream);
+	switch(r) {
+		case BZ_STREAM_END:
+			/* If we're at the end of the stream, deinitialize the
+			 * decompression context now. */
+			switch(BZ2_bzDecompressEnd(&zip->bzstream)) {
+				case BZ_OK:
+					break;
+				default:
+					archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+					    "Failed to clean up bzip2 decompressor");
+					return ARCHIVE_FATAL;
+			}
+
+			zip->end_of_entry = 1;
+			break;
+		case BZ_OK:
+			/* The decompressor has successfully decoded this chunk of
+			 * data, but more data is still in queue. */
+			break;
+		default:
+			archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+			    "bzip2 decompression failed");
+			return ARCHIVE_FATAL;
+	}
+
+	/* Update the pointers so decompressor can continue decoding. */
+	to_consume = zip->bzstream.total_in_lo32;
+	__archive_read_consume(a, to_consume);
+
+	total_out = ((uint64_t) zip->bzstream.total_out_hi32 << 32) +
+	    zip->bzstream.total_out_lo32;
+
+	zip->entry_bytes_remaining -= to_consume;
+	zip->entry_compressed_bytes_read += to_consume;
+	zip->entry_uncompressed_bytes_read += total_out;
+
+	/* Give libarchive its due. */
+	*size = total_out;
+	*buff = zip->uncompressed_buffer;
+
+	/* Seek for optional marker, like in other entries. */
+	r = consume_optional_marker(a, zip);
+	if(r != ARCHIVE_OK)
+		return r;
+
+	return ARCHIVE_OK;
+}
+
+#endif
+
 #ifdef HAVE_ZLIB_H
 static int
 zip_deflate_init(struct archive_read *a, struct zip *zip)
@@ -1470,42 +2205,9 @@ zip_read_data_deflate(struct archive_read *a, const void **buff,
 			return (r);
 	}
 
-	if (zip->end_of_entry && (zip->entry->zip_flags & ZIP_LENGTH_AT_END)) {
-		const char *p;
-
-		if (NULL == (p = __archive_read_ahead(a, 24, NULL))) {
-			archive_set_error(&a->archive,
-			    ARCHIVE_ERRNO_FILE_FORMAT,
-			    "Truncated ZIP end-of-file record");
-			return (ARCHIVE_FATAL);
-		}
-		/* Consume the optional PK\007\010 marker. */
-		if (p[0] == 'P' && p[1] == 'K' &&
-		    p[2] == '\007' && p[3] == '\010') {
-			p += 4;
-			zip->unconsumed = 4;
-		}
-		if (zip->entry->flags & LA_USED_ZIP64) {
-			uint64_t compressed, uncompressed;
-			zip->entry->crc32 = archive_le32dec(p);
-			compressed = archive_le64dec(p + 4);
-			uncompressed = archive_le64dec(p + 12);
-			if (compressed > INT64_MAX || uncompressed > INT64_MAX) {
-				archive_set_error(&a->archive,
-				    ARCHIVE_ERRNO_FILE_FORMAT,
-				    "Overflow of 64-bit file sizes");
-				return ARCHIVE_FAILED;
-			}
-			zip->entry->compressed_size = compressed;
-			zip->entry->uncompressed_size = uncompressed;
-			zip->unconsumed += 20;
-		} else {
-			zip->entry->crc32 = archive_le32dec(p);
-			zip->entry->compressed_size = archive_le32dec(p + 4);
-			zip->entry->uncompressed_size = archive_le32dec(p + 8);
-			zip->unconsumed += 12;
-		}
-	}
+	r = consume_optional_marker(a, zip);
+	if (r != ARCHIVE_OK)
+		return (r);
 
 	return (ARCHIVE_OK);
 }
@@ -1933,6 +2635,24 @@ archive_read_format_zip_read_data(struct archive_read *a,
 	case 0:  /* No compression. */
 		r =  zip_read_data_none(a, buff, size, offset);
 		break;
+#ifdef HAVE_BZLIB_H
+	case 12: /* ZIPx bzip2 compression. */
+		r = zip_read_data_zipx_bzip2(a, buff, size, offset);
+		break;
+#endif
+#if HAVE_LZMA_H && HAVE_LIBLZMA
+	case 14: /* ZIPx LZMA compression. */
+		r = zip_read_data_zipx_lzma_alone(a, buff, size, offset);
+		break;
+	case 95: /* ZIPx XZ compression. */
+		r = zip_read_data_zipx_xz(a, buff, size, offset);
+		break;
+#endif
+	/* PPMd support is built-in, so we don't need any #if guards. */
+	case 98: /* ZIPx PPMd compression. */
+		r = zip_read_data_zipx_ppmd(a, buff, size, offset);
+		break;
+
 #ifdef HAVE_ZLIB_H
 	case 8: /* Deflate compression. */
 		r =  zip_read_data_deflate(a, buff, size, offset);
@@ -1941,8 +2661,8 @@ archive_read_format_zip_read_data(struct archive_read *a,
 	default: /* Unsupported compression. */
 		/* Return a warning. */
 		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
-		    "Unsupported ZIP compression method (%s)",
-		    compression_name(zip->entry->compression));
+		    "Unsupported ZIP compression method (%d: %s)",
+		    zip->entry->compression, compression_name(zip->entry->compression));
 		/* We can't decompress this entry, but we will
 		 * be able to skip() it and try the next entry. */
 		return (ARCHIVE_FAILED);
@@ -2000,11 +2720,29 @@ archive_read_format_zip_cleanup(struct archive_read *a)
 	struct zip_entry *zip_entry, *next_zip_entry;
 
 	zip = (struct zip *)(a->format->data);
+
 #ifdef HAVE_ZLIB_H
 	if (zip->stream_valid)
 		inflateEnd(&zip->stream);
-	free(zip->uncompressed_buffer);
 #endif
+
+#if HAVA_LZMA_H && HAVE_LIBLZMA
+    if (zip->zipx_lzma_valid) {
+		lzma_end(&zip->zipx_lzma_stream);
+	}
+#endif
+
+#ifdef HAVE_BZLIB_H
+	if (zip->bzstream_valid) {
+		BZ2_bzDecompressEnd(&zip->bzstream);
+	}
+#endif
+
+	free(zip->uncompressed_buffer);
+
+	if (zip->ppmd8_valid)
+		__archive_ppmd8_functions.Ppmd8_Free(&zip->ppmd8);
+
 	if (zip->zip_entries) {
 		zip_entry = zip->zip_entries;
 		while (zip_entry != NULL) {
@@ -3146,3 +3884,5 @@ archive_read_support_format_zip_seekable(struct archive *_a)
 		free(zip);
 	return (ARCHIVE_OK);
 }
+
+/*# vim:set noet:*/
diff --git a/libarchive/archive_write_disk_posix.c b/libarchive/archive_write_disk_posix.c
index 003e17d77367..3ed281df23f3 100644
--- a/libarchive/archive_write_disk_posix.c
+++ b/libarchive/archive_write_disk_posix.c
@@ -1791,10 +1791,8 @@ finish_metadata:
 		a->fd = -1;
 	}
 	/* If there's an entry, we can release it now. */
-	if (a->entry) {
-		archive_entry_free(a->entry);
-		a->entry = NULL;
-	}
+	archive_entry_free(a->entry);
+	a->entry = NULL;
 	a->archive.state = ARCHIVE_STATE_HEADER;
 	return (ret);
 }
@@ -2398,8 +2396,7 @@ _archive_write_disk_free(struct archive *_a)
 	ret = _archive_write_disk_close(&a->archive);
 	archive_write_disk_set_group_lookup(&a->archive, NULL, NULL, NULL);
 	archive_write_disk_set_user_lookup(&a->archive, NULL, NULL, NULL);
-	if (a->entry)
-		archive_entry_free(a->entry);
+	archive_entry_free(a->entry);
 	archive_string_free(&a->_name_data);
 	archive_string_free(&a->archive.error_string);
 	archive_string_free(&a->path_safe);
diff --git a/libarchive/archive_write_disk_set_standard_lookup.c b/libarchive/archive_write_disk_set_standard_lookup.c
index 5c766d75dd01..5fccdb9dc658 100644
--- a/libarchive/archive_write_disk_set_standard_lookup.c
+++ b/libarchive/archive_write_disk_set_standard_lookup.c
@@ -114,8 +114,7 @@ lookup_gid(void *private_data, const char *gname, int64_t gid)
 		return ((gid_t)b->id);
 
 	/* Free the cache slot for a new entry. */
-	if (b->name != NULL)
-		free(b->name);
+	free(b->name);
 	b->name = strdup(gname);
 	/* Note: If strdup fails, that's okay; we just won't cache. */
 	b->hash = h;
@@ -184,8 +183,7 @@ lookup_uid(void *private_data, const char *uname, int64_t uid)
 		return ((uid_t)b->id);
 
 	/* Free the cache slot for a new entry. */
-	if (b->name != NULL)
-		free(b->name);
+	free(b->name);
 	b->name = strdup(uname);
 	/* Note: If strdup fails, that's okay; we just won't cache. */
 	b->hash = h;
diff --git a/libarchive/archive_write_disk_windows.c b/libarchive/archive_write_disk_windows.c
index 78eda4abc8d1..135dd97eacac 100644
--- a/libarchive/archive_write_disk_windows.c
+++ b/libarchive/archive_write_disk_windows.c
@@ -696,10 +696,8 @@ _archive_write_disk_header(struct archive *_a, struct archive_entry *entry)
 	a->pst = NULL;
 	a->current_fixup = NULL;
 	a->deferred = 0;
-	if (a->entry) {
-		archive_entry_free(a->entry);
-		a->entry = NULL;
-	}
+	archive_entry_free(a->entry);
+	a->entry = NULL;
 	a->entry = archive_entry_clone(entry);
 	a->fh = INVALID_HANDLE_VALUE;
 	a->fd_offset = 0;
@@ -1145,10 +1143,8 @@ _archive_write_disk_finish_entry(struct archive *_a)
 		a->fh = INVALID_HANDLE_VALUE;
 	}
 	/* If there's an entry, we can release it now. */
-	if (a->entry) {
-		archive_entry_free(a->entry);
-		a->entry = NULL;
-	}
+	archive_entry_free(a->entry);
+	a->entry = NULL;
 	a->archive.state = ARCHIVE_STATE_HEADER;
 	return (ret);
 }
@@ -1690,8 +1686,7 @@ _archive_write_disk_free(struct archive *_a)
 	ret = _archive_write_disk_close(&a->archive);
 	archive_write_disk_set_group_lookup(&a->archive, NULL, NULL, NULL);
 	archive_write_disk_set_user_lookup(&a->archive, NULL, NULL, NULL);
-	if (a->entry)
-		archive_entry_free(a->entry);
+	archive_entry_free(a->entry);
 	archive_wstring_free(&a->_name_data);
 	archive_string_free(&a->archive.error_string);
 	archive_wstring_free(&a->path_safe);
diff --git a/libarchive/archive_write_set_format_ar.c b/libarchive/archive_write_set_format_ar.c
index 50305ccbeda7..253cac82efe6 100644
--- a/libarchive/archive_write_set_format_ar.c
+++ b/libarchive/archive_write_set_format_ar.c
@@ -187,6 +187,11 @@ archive_write_ar_header(struct archive_write *a, struct archive_entry *entry)
 		buff[AR_name_offset] = '/';
 		goto stat;
 	}
+	if (strcmp(pathname, "/SYM64/") == 0) {
+		/* Entry is archive symbol table in GNU 64-bit format */
+		memcpy(buff + AR_name_offset, "/SYM64/", 7);
+		goto stat;
+	}
 	if (strcmp(pathname, "__.SYMDEF") == 0) {
 		/* Entry is archive symbol table in BSD format */
 		memcpy(buff + AR_name_offset, "__.SYMDEF", 9);
diff --git a/libarchive/archive_write_set_format_cpio.c b/libarchive/archive_write_set_format_cpio.c
index a4c9d1ed276d..16cefad7b5b3 100644
--- a/libarchive/archive_write_set_format_cpio.c
+++ b/libarchive/archive_write_set_format_cpio.c
@@ -408,8 +408,7 @@ write_header(struct archive_write *a, struct archive_entry *entry)
 		}
 	}
 exit_write_header:
-	if (entry_main)
-		archive_entry_free(entry_main);
+	archive_entry_free(entry_main);
 	return (ret_final);
 }
 
diff --git a/libarchive/archive_write_set_format_cpio_newc.c b/libarchive/archive_write_set_format_cpio_newc.c
index 957f1a333a6a..2d923cc33061 100644
--- a/libarchive/archive_write_set_format_cpio_newc.c
+++ b/libarchive/archive_write_set_format_cpio_newc.c
@@ -366,8 +366,7 @@ write_header(struct archive_write *a, struct archive_entry *entry)
 		}
 	}
 exit_write_header:
-	if (entry_main)
-		archive_entry_free(entry_main);
+	archive_entry_free(entry_main);
 	return (ret_final);
 }
 
diff --git a/libarchive/archive_write_set_format_gnutar.c b/libarchive/archive_write_set_format_gnutar.c
index 1966c53fff14..e7757c22badd 100644
--- a/libarchive/archive_write_set_format_gnutar.c
+++ b/libarchive/archive_write_set_format_gnutar.c
@@ -565,8 +565,7 @@ archive_write_gnutar_header(struct archive_write *a,
 	gnutar->entry_bytes_remaining = archive_entry_size(entry);
 	gnutar->entry_padding = 0x1ff & (-(int64_t)gnutar->entry_bytes_remaining);
 exit_write_header:
-	if (entry_main)
-		archive_entry_free(entry_main);
+	archive_entry_free(entry_main);
 	return (ret);
 }
 
diff --git a/libarchive/archive_write_set_format_shar.c b/libarchive/archive_write_set_format_shar.c
index 5be310a0781f..600c88257a0c 100644
--- a/libarchive/archive_write_set_format_shar.c
+++ b/libarchive/archive_write_set_format_shar.c
@@ -169,8 +169,7 @@ archive_write_shar_header(struct archive_write *a, struct archive_entry *entry)
 	}
 
 	/* Save the entry for the closing. */
-	if (shar->entry)
-		archive_entry_free(shar->entry);
+	archive_entry_free(shar->entry);
 	shar->entry = archive_entry_clone(entry);
 	name = archive_entry_pathname(entry);
 
@@ -289,8 +288,7 @@ archive_write_shar_header(struct archive_write *a, struct archive_entry *entry)
 			    "mkdir -p %s > /dev/null 2>&1\n",
 			    shar->quoted_name.s);
 			/* Record that we just created this directory. */
-			if (shar->last_dir != NULL)
-				free(shar->last_dir);
+			free(shar->last_dir);
 
 			shar->last_dir = strdup(name);
 			/* Trim a trailing '/'. */
diff --git a/libarchive/archive_write_set_format_ustar.c b/libarchive/archive_write_set_format_ustar.c
index c54aeabdb198..ad4ccb77ea53 100644
--- a/libarchive/archive_write_set_format_ustar.c
+++ b/libarchive/archive_write_set_format_ustar.c
@@ -352,14 +352,12 @@ archive_write_ustar_header(struct archive_write *a, struct archive_entry *entry)
 #endif
 	ret = __archive_write_format_header_ustar(a, buff, entry, -1, 1, sconv);
 	if (ret < ARCHIVE_WARN) {
-		if (entry_main)
-			archive_entry_free(entry_main);
+		archive_entry_free(entry_main);
 		return (ret);
 	}
 	ret2 = __archive_write_output(a, buff, 512);
 	if (ret2 < ARCHIVE_WARN) {
-		if (entry_main)
-			archive_entry_free(entry_main);
+		archive_entry_free(entry_main);
 		return (ret2);
 	}
 	if (ret2 < ret)
@@ -367,8 +365,7 @@ archive_write_ustar_header(struct archive_write *a, struct archive_entry *entry)
 
 	ustar->entry_bytes_remaining = archive_entry_size(entry);
 	ustar->entry_padding = 0x1ff & (-(int64_t)ustar->entry_bytes_remaining);
-	if (entry_main)
-		archive_entry_free(entry_main);
+	archive_entry_free(entry_main);
 	return (ret);
 }
 
diff --git a/libarchive/archive_write_set_format_v7tar.c b/libarchive/archive_write_set_format_v7tar.c
index 53c0db0e2041..1fdaafd2a939 100644
--- a/libarchive/archive_write_set_format_v7tar.c
+++ b/libarchive/archive_write_set_format_v7tar.c
@@ -330,14 +330,12 @@ archive_write_v7tar_header(struct archive_write *a, struct archive_entry *entry)
 #endif
 	ret = format_header_v7tar(a, buff, entry, 1, sconv);
 	if (ret < ARCHIVE_WARN) {
-		if (entry_main)
-			archive_entry_free(entry_main);
+		archive_entry_free(entry_main);
 		return (ret);
 	}
 	ret2 = __archive_write_output(a, buff, 512);
 	if (ret2 < ARCHIVE_WARN) {
-		if (entry_main)
-			archive_entry_free(entry_main);
+		archive_entry_free(entry_main);
 		return (ret2);
 	}
 	if (ret2 < ret)
@@ -345,8 +343,7 @@ archive_write_v7tar_header(struct archive_write *a, struct archive_entry *entry)
 
 	v7tar->entry_bytes_remaining = archive_entry_size(entry);
 	v7tar->entry_padding = 0x1ff & (-(int64_t)v7tar->entry_bytes_remaining);
-	if (entry_main)
-		archive_entry_free(entry_main);
+	archive_entry_free(entry_main);
 	return (ret);
 }
 
diff --git a/libarchive/archive_write_set_format_zip.c b/libarchive/archive_write_set_format_zip.c
index f69b8467f440..7fcd1a07b3f5 100644
--- a/libarchive/archive_write_set_format_zip.c
+++ b/libarchive/archive_write_set_format_zip.c
@@ -564,10 +564,8 @@ archive_write_zip_header(struct archive_write *a, struct archive_entry *entry)
 	zip->entry_uses_zip64 = 0;
 	zip->entry_crc32 = zip->crc32func(0, NULL, 0);
 	zip->entry_encryption = 0;
-	if (zip->entry != NULL) {
-		archive_entry_free(zip->entry);
-		zip->entry = NULL;
-	}
+	archive_entry_free(zip->entry);
+	zip->entry = NULL;
 
 	if (zip->cctx_valid)
 		archive_encrypto_aes_ctr_release(&zip->cctx);
@@ -1430,6 +1428,9 @@ write_path(struct archive_entry *entry, struct archive_write *archive)
 	type = archive_entry_filetype(entry);
 	written_bytes = 0;
 
+	if (path == NULL)
+		return (ARCHIVE_FATAL);
+
 	ret = __archive_write_output(archive, path, strlen(path));
 	if (ret != ARCHIVE_OK)
 		return (ARCHIVE_FATAL);
diff --git a/libarchive/test/CMakeLists.txt b/libarchive/test/CMakeLists.txt
index 3927748576c6..690a83c5cd60 100644
--- a/libarchive/test/CMakeLists.txt
+++ b/libarchive/test/CMakeLists.txt
@@ -58,7 +58,6 @@ IF(ENABLE_TEST)
     test_compat_lzma.c
     test_compat_lzop.c
     test_compat_mac.c
-    test_compat_pax_libarchive_2x.c
     test_compat_perl_archive_tar.c
     test_compat_plexus_archiver_tar.c
     test_compat_solaris_pax_sparse.c
diff --git a/libarchive/test/test_compat_pax_libarchive_2x.c b/libarchive/test/test_compat_pax_libarchive_2x.c
deleted file mode 100644
index 4830d9e43a17..000000000000
--- a/libarchive/test/test_compat_pax_libarchive_2x.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*-
- * Copyright (c) 2011 Michihiro NAKAJIMA
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "test.h"
-__FBSDID("$FreeBSD");
-
-#include <locale.h>
-
-/*
- * Test "tar:compat-2x" option that enables the string conversion of
- * libarchive 2.x, which made incorrect UTF-8 form filenames for the
- * pax format on some platform the wchar_t of which was not Unicode form.
- * The option is unneeded if people have been using UTF-8 locale during
- * making tar files(in pax format).
- *
- * NOTE: The sample tar file was made with bsdtar 2.x in LANG=KOI8-R on
- * FreeBSD.
- */
-
-DEFINE_TEST(test_compat_pax_libarchive_2x)
-{
-#if (defined(_WIN32) && !defined(__CYGWIN__)) \
-         || defined(__STDC_ISO_10646__) || defined(__APPLE__)
-	skipping("This test only for the platform the WCS of which is "
-	    "not Unicode.");
-#else
-	struct archive *a;
-	struct archive_entry *ae;
-	char c;
-	wchar_t wc;
-	const char *refname = "test_compat_pax_libarchive_2x.tar.Z";
-
-	/*
- 	* Read incorrect format UTF-8 filename in ru_RU.KOI8-R with
-	* "tar:compat-2x" option. We should correctly
-	* read two filenames.
-	*/
-	if (NULL == setlocale(LC_ALL, "ru_RU.KOI8-R")) {
-		skipping("ru_RU.KOI8-R locale not available on this system.");
-		return;
-	}
-
-	/*
-	 * Test if wchar_t format is the same as FreeBSD wchar_t.
-	 */
-	assert(-1 != wctomb(NULL, L'\0'));
-	wc = (wchar_t)0xd0;
-	c = 0;
-	if (wctomb(&c, wc) != 1 || (unsigned char)c != 0xd0) {
-		skipping("wchar_t format is different on this platform.");
-		return;
-	}
-
-	extract_reference_file(refname);
-
-	assert((a = archive_read_new()) != NULL);
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
-	assertEqualIntA(a, ARCHIVE_OK,
-	    archive_read_set_options(a, "tar:compat-2x"));
-	assertEqualIntA(a, ARCHIVE_OK,
-	    archive_read_open_filename(a, refname, 10240));
-
-	/* Verify regular first file. */
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
-	assertEqualString("\xd0\xd2\xc9\xd7\xc5\xd4",
-	    archive_entry_pathname(ae));
-	assertEqualInt(6, archive_entry_size(ae));
-
-	/* Verify regular second file. */
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
-	assertEqualString("\xf0\xf2\xe9\xf7\xe5\xf4",
-	    archive_entry_pathname(ae));
-	assertEqualInt(6, archive_entry_size(ae));
-
-
-	/* End of archive. */
-	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
-
-	/* Verify archive format. */
-	assertEqualIntA(a, ARCHIVE_FILTER_COMPRESS, archive_filter_code(a, 0));
-	assertEqualIntA(a, ARCHIVE_FORMAT_TAR_PAX_INTERCHANGE,
-	    archive_format(a));
-
-	/* Close the archive. */
-	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
-	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
-
-	/*
-	 * Without "tar:compat-2x" option.
-	 * Neither first file name nor second file name can be translated
-	 * to KOI8-R.
-	 */
-	assert((a = archive_read_new()) != NULL);
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
-	assertEqualIntA(a, ARCHIVE_OK,
-	    archive_read_open_filename(a, refname, 10240));
-
-	/* We cannot correctly read the filename. */
-	// This test used to look for WARN here coming from a
-	// character-conversion failure.  But: Newer iconv tables are
-	// more tolerant so we can't always detect the conversion
-	// failures.
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
-	assert(strcmp("\xd0\xd2\xc9\xd7\xc5\xd4",
-	    archive_entry_pathname(ae)) != 0);
-	assertEqualInt(6, archive_entry_size(ae));
-
-	/* We cannot correctly read the filename. */
-	// Same here:  The test is still valid (it sill verifies that
-	// the converted pathname is different), but we can no longer
-	// rely on WARN here.
-	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
-	assert(strcmp("\xf0\xf2\xe9\xf7\xe5\xf4",
-	    archive_entry_pathname(ae)) != 0);
-	assertEqualInt(6, archive_entry_size(ae));
-
-
-	/* End of archive. */
-	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
-
-	/* Verify archive format. */
-	assertEqualIntA(a, ARCHIVE_FILTER_COMPRESS, archive_filter_code(a, 0));
-	assertEqualIntA(a, ARCHIVE_FORMAT_TAR_PAX_INTERCHANGE,
-	    archive_format(a));
-
-	/* Close the archive. */
-	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
-	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
-#endif
-}
diff --git a/libarchive/test/test_compat_pax_libarchive_2x.tar.Z.uu b/libarchive/test/test_compat_pax_libarchive_2x.tar.Z.uu
deleted file mode 100644
index f44054118c17..000000000000
--- a/libarchive/test/test_compat_pax_libarchive_2x.tar.Z.uu
+++ /dev/null
@@ -1,15 +0,0 @@
-begin 644 test_compat_pax_libarchive_2x.tar.Z
-M'YV04,+@05(F#)DR<EY`DY;L6C%J`")*G$BQHL6+&#-JW%@1AL<;-6J``.`Q
-M!L@8(TN>3.FQ94D;-D#$B%&#QHT9,CS.B`DCADT;-P"`P,.QJ-&C2)-:K#.'
-M3A@Y)&&,J5-&:<:I5:U>=.F1I<N16L.*'4NV;%D9*.&$H8.FQS!(PR0-2S3L
-MTK!"PR@IR`EB#)TT;<KTB#$#!EJ0.&+@V`L#Q%K`@@D;QG$C!PX9.128!#%E
-M")(D3+*X.&BG1XX:>V5P]@Q:=!HW;P87IE'C!@W-.%9_#NW"#9O7:P8K,$N\
-MN/'CR),K7\Z\N?.)"QL^?$[=:$N0(J.:K(%2^\JH7%O&G%GS9DX8.T'T+`PC
-MJ/KJ\)$R=0K5(];B]XF']]H2;/S_`"H'CSSIW%,./0$FJ.""##;HX(,01@A`
-M0`,5=%!"`Q9XH(3Z?1022]MUIQ)W_+D4`TPRT6033CKQ1),,0`E%%(?PS?=4
-M5/F9E6-9^X'7'XU`-H@6"&JQY18LP\@R3"K#W#),*</0PEA??P4FFV';);88
-M7X]9*9D,E%F&F68WZ-;::&64=EIJ9O+V6FR2T082;FV*YAMPP@6IYYY\]NFG
-M4AD:B."?9EWWH7<D(BIB>.*E6!Z+Z+DX0V'NP4!H<C;6)Q55^'':X5<^=G7I
->J,<%NB&IJ*:JZJJLMNKJJ[#&*NNLM-9JZZVXYDH<
-`
-end
diff --git a/libarchive/test/test_read_format_zip.c b/libarchive/test/test_read_format_zip.c
index 6cc25a6676fc..b965299a4f5c 100644
--- a/libarchive/test/test_read_format_zip.c
+++ b/libarchive/test/test_read_format_zip.c
@@ -26,6 +26,76 @@
 #include "test.h"
 __FBSDID("$FreeBSD: head/lib/libarchive/test/test_read_format_zip.c 189482 2009-03-07 03:30:35Z kientzle $");
 
+#define __LIBARCHIVE_BUILD
+#include <archive_crc32.h>
+
+static
+int extract_one(struct archive* a, struct archive_entry* ae, uint32_t crc)
+{
+    la_ssize_t fsize, bytes_read;
+    uint8_t* buf;
+    int ret = 1;
+    uint32_t computed_crc;
+
+    fsize = archive_entry_size(ae);
+    buf = malloc(fsize);
+    if(buf == NULL)
+        return 1;
+
+    bytes_read = archive_read_data(a, buf, fsize);
+    if(bytes_read != fsize) {
+        assertEqualInt(bytes_read, fsize);
+        goto fn_exit;
+    }
+
+    computed_crc = crc32(0, buf, fsize);
+    assertEqualInt(computed_crc, crc);
+    ret = 0;
+
+fn_exit:
+    free(buf);
+    return ret;
+}
+
+static
+int extract_one_using_blocks(struct archive* a, int block_size, uint32_t crc)
+{
+	uint8_t* buf;
+	int ret = 1;
+	uint32_t computed_crc = 0;
+	la_ssize_t bytes_read;
+
+	buf = malloc(block_size);
+	if(buf == NULL)
+		return 1;
+
+	while(1) {
+		bytes_read = archive_read_data(a, buf, block_size);
+		if(bytes_read == ARCHIVE_RETRY)
+			continue;
+		else if(bytes_read == 0)
+			break;
+		else if(bytes_read < 0) {
+			/* If we're here, it means the decompressor has failed
+			 * to properly decode test file. */
+			assertA(0);
+			ret = 1;
+			goto fn_exit;
+		} else {
+			/* ok */
+		}
+
+		computed_crc = crc32(computed_crc, buf, bytes_read);
+	}
+
+	assertEqualInt(computed_crc, crc);
+	ret = 0;
+
+fn_exit:
+	free(buf);
+	return ret;
+}
+
 /*
  * The reference file for this has been manually tweaked so that:
  *   * file2 has length-at-end but file1 does not
@@ -312,3 +382,380 @@ DEFINE_TEST(test_read_format_zip)
 	test_extract_length_at_end();
 	test_symlink();
 }
+
+DEFINE_TEST(test_read_format_zip_ppmd_one_file)
+{
+	const char *refname = "test_read_format_zip_ppmd8.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xBA8E3BAA));
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_ppmd_one_file_blockread)
+{
+	const char *refname = "test_read_format_zip_ppmd8.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0xBA8E3BAA));
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_ppmd_multi)
+{
+	const char *refname = "test_read_format_zip_ppmd8_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("smartd.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x8DD7379E));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("ts.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x7AE59B31));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xBA8E3BAA));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_ppmd_multi_blockread)
+{
+	const char *refname = "test_read_format_zip_ppmd8_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("smartd.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 12, 0x8DD7379E));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("ts.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0x7AE59B31));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (ppmd-1)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 14, 0xBA8E3BAA));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_lzma_one_file)
+{
+	const char *refname = "test_read_format_zip_lzma.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xBA8E3BAA));
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_lzma_one_file_blockread)
+{
+	const char *refname = "test_read_format_zip_lzma.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0xBA8E3BAA));
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_lzma_multi)
+{
+	const char *refname = "test_read_format_zip_lzma_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("smartd.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x8DD7379E));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("ts.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x7AE59B31));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xBA8E3BAA));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_lzma_multi_blockread)
+{
+	const char *refname = "test_read_format_zip_lzma_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("smartd.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 12, 0x8DD7379E));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("ts.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0x7AE59B31));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 6.3 (lzma)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 14, 0xBA8E3BAA));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+
+DEFINE_TEST(test_read_format_zip_bzip2_one_file)
+{
+	const char *refname = "test_read_format_zip_bzip2.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xBA8E3BAA));
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_bzip2_one_file_blockread)
+{
+	const char *refname = "test_read_format_zip_bzip2.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0xBA8E3BAA));
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_bzip2_multi)
+{
+	const char *refname = "test_read_format_zip_bzip2_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("smartd.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x8DD7379E));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("ts.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x7AE59B31));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xBA8E3BAA));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_bzip2_multi_blockread)
+{
+	const char *refname = "test_read_format_zip_bzip2_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("smartd.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 12, 0x8DD7379E));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("ts.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0x7AE59B31));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 4.6 (bzip)", archive_format_name(a));
+	assertEqualString("vimrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 14, 0xBA8E3BAA));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_xz_multi)
+{
+	const char *refname = "test_read_format_zip_xz_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 2.0 (xz)", archive_format_name(a));
+	assertEqualString("bash.bashrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xF751B8C9));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 2.0 (xz)", archive_format_name(a));
+	assertEqualString("pacman.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0xB20B7F88));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 2.0 (xz)", archive_format_name(a));
+	assertEqualString("profile", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one(a, ae, 0x2329F054));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
+
+DEFINE_TEST(test_read_format_zip_xz_multi_blockread)
+{
+	const char *refname = "test_read_format_zip_xz_multi.zipx";
+	struct archive *a;
+	struct archive_entry *ae;
+
+	extract_reference_file(refname);
+
+	assert((a = archive_read_new()) != NULL);
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_zip(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 37));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 2.0 (xz)", archive_format_name(a));
+	assertEqualString("bash.bashrc", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 12, 0xF751B8C9));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 2.0 (xz)", archive_format_name(a));
+	assertEqualString("pacman.conf", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 13, 0xB20B7F88));
+
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
+	assertEqualString("ZIP 2.0 (xz)", archive_format_name(a));
+	assertEqualString("profile", archive_entry_pathname(ae));
+	assertEqualIntA(a, 0, extract_one_using_blocks(a, 14, 0x2329F054));
+
+	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
+	assertEqualIntA(a, ARCHIVE_OK, archive_read_free(a));
+}
diff --git a/libarchive/test/test_read_format_zip_bzip2.zipx.uu b/libarchive/test/test_read_format_zip_bzip2.zipx.uu
new file mode 100644
index 000000000000..6d9884aeddf5
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_bzip2.zipx.uu
@@ -0,0 +1,19 @@
+begin 644 bzip2.zipx
+M4$L#!"X#```,`#TQD4VJ.XZZ-`(``)`#```%````=FEM<F-"6F@Y,4%9)E-9
+MYPC!D@``3%^``!!TY^!2(B.7`+__W^%``C$[0!AJ>E,ID:&U-'E`T&C1IIIZ
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+M4)I$P%W)%.%"0YPC!DA02P$"/P,N`P``#``],9%-JCN.NC0"``"0`P``!0`D
+M`````````""`I($`````=FEM<F,*`"````````$`&```EU'!QI74`8#"I,S&
+AE=0!`)=1P<:5U`%02P4&``````$``0!7````5P(`````
+`
+end
diff --git a/libarchive/test/test_read_format_zip_bzip2_multi.zipx.uu b/libarchive/test/test_read_format_zip_bzip2_multi.zipx.uu
new file mode 100644
index 000000000000..1802ac0f39d3
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_bzip2_multi.zipx.uu
@@ -0,0 +1,96 @@
+begin 644 test_read_format_zip_bzip2_multi.zipx
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+`
+end
diff --git a/libarchive/test/test_read_format_zip_lzma.zipx.uu b/libarchive/test/test_read_format_zip_lzma.zipx.uu
new file mode 100644
index 000000000000..24fdc8e7c288
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_lzma.zipx.uu
@@ -0,0 +1,19 @@
+begin 644 lzma.zipx
+M4$L#!#\#```.`#TQD4VJ.XZZ.0(``)`#```%````=FEM<F,0`@4`70`0````
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+`
+end
diff --git a/libarchive/test/test_read_format_zip_lzma_multi.zipx.uu b/libarchive/test/test_read_format_zip_lzma_multi.zipx.uu
new file mode 100644
index 000000000000..22c4d5e831ac
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_lzma_multi.zipx.uu
@@ -0,0 +1,95 @@
+begin 644 test_read_format_zip_lzma_multi.zipx
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diff --git a/libarchive/test/test_read_format_zip_ppmd8.zipx.uu b/libarchive/test/test_read_format_zip_ppmd8.zipx.uu
new file mode 100644
index 000000000000..4440e95b3158
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_ppmd8.zipx.uu
@@ -0,0 +1,17 @@
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diff --git a/libarchive/test/test_read_format_zip_ppmd8_multi.zipx.uu b/libarchive/test/test_read_format_zip_ppmd8_multi.zipx.uu
new file mode 100644
index 000000000000..6fadcea64931
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_ppmd8_multi.zipx.uu
@@ -0,0 +1,84 @@
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+"````
+`
+end
diff --git a/libarchive/test/test_read_format_zip_xz_multi.zipx.uu b/libarchive/test/test_read_format_zip_xz_multi.zipx.uu
new file mode 100644
index 000000000000..cbb0434691a1
--- /dev/null
+++ b/libarchive/test/test_read_format_zip_xz_multi.zipx.uu
@@ -0,0 +1,125 @@
+begin 644 test_read_format_zip_xz_multi.zipx
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+`
+end
diff --git a/test_utils/test_main.c b/test_utils/test_main.c
index bb71217b232c..defdd34446c4 100644
--- a/test_utils/test_main.c
+++ b/test_utils/test_main.c
@@ -2590,10 +2590,8 @@ sunacl_get(int cmd, int *aclcnt, int fd, const char *path)
 					cnt = facl(fd, cmd, cnt, aclp);
 			}
 		} else {
-			if (aclp != NULL) {
-				free(aclp);
-				aclp = NULL;
-			}
+			free(aclp);
+			aclp = NULL;
 			break;
 		}
 	}