Merging upstream version 1.10.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 276 insertions, 193 deletions

diff --git a/ChangeLog b/ChangeLog
index d90a18f..2491c1b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2019-01-01  Antonio Diaz Diaz  <antonio@gnu.org>
+
+	* Version 1.10 released.
+	* File_* renamed to Lzip_*.
+	* main.c: Document option -0 and make it use a 64 KiB dict size.
+	* main.c (main): Check return value of close( infd ).
+	* main.c: Compile on DOS with DJGPP.
+	* configure: Accept appending to CFLAGS, 'CFLAGS+=OPTIONS'.
+	* INSTALL: Document use of CFLAGS+='-D __USE_MINGW_ANSI_STDIO'.
+
 2018-02-04  Antonio Diaz Diaz  <antonio@gnu.org>
 
 	* Version 1.9 released.
@@ -84,7 +94,7 @@
 	* Using LZMA SDK 9.10 (public domain) from Igor Pavlov.
 
 
-Copyright (C) 2010-2018 Antonio Diaz Diaz.
+Copyright (C) 2010-2019 Antonio Diaz Diaz.
 
 This file is a collection of facts, and thus it is not copyrightable,
 but just in case, you have unlimited permission to copy, distribute and
diff --git a/INSTALL b/INSTALL
index 327c502..5ad7128 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,10 +1,14 @@
 Requirements
 ------------
 You will need a C compiler.
-I use gcc 5.3.0 and 4.1.2, but the code should compile with any
-standards compliant compiler.
+I use gcc 5.3.0 and 4.1.2, but the code should compile with any standards
+compliant compiler.
 Gcc is available at http://gcc.gnu.org.
 
+The operating system must allow signal handlers read access to objects with
+static storage duration so that the cleanup handler for Control-C can delete
+the partial output file.
+
 
 Procedure
 ---------
@@ -23,6 +27,10 @@ the main archive.
 	cd pdlzip[version]
 	./configure
 
+   If you are compiling on MinGW, use:
+
+	./configure CFLAGS+='-D __USE_MINGW_ANSI_STDIO'
+
 3. Run make.
 
 	make
@@ -61,7 +69,7 @@ After running 'configure', you can run 'make' and 'make install' as
 explained above.
 
 
-Copyright (C) 2010-2018 Antonio Diaz Diaz.
+Copyright (C) 2010-2019 Antonio Diaz Diaz.
 
 This file is free documentation: you have unlimited permission to copy,
 distribute and modify it.
diff --git a/LzmaEnc.c b/LzmaEnc.c
index 1dd8ea1..f59c001 100644
--- a/LzmaEnc.c
+++ b/LzmaEnc.c
@@ -1352,7 +1352,7 @@ static uint32_t GetOptimumFast(CLzmaEnc *p, uint32_t *backRes)
 static void LZe_full_flush(CLzmaEnc *p, uint32_t posState)
   {
   const uint32_t len = LZMA_MATCH_LEN_MIN;
-  File_trailer trailer;
+  Lzip_trailer trailer;
   RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
   RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
   p->state = kMatchNextStates[p->state];
@@ -1362,15 +1362,15 @@ static void LZe_full_flush(CLzmaEnc *p, uint32_t posState)
   RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);
   RangeEnc_FlushData(&p->rc);
   RangeEnc_FlushStream(&p->rc);
-  Ft_set_data_crc( trailer, p->matchFinderBase.crc ^ 0xFFFFFFFFU );
-  Ft_set_data_size( trailer, p->nowPos64 );
-  Ft_set_member_size( trailer, p->rc.processed + Fh_size + Ft_size );
-  if( writeblock( p->rc.outfd, trailer, Ft_size ) != Ft_size )
+  Lt_set_data_crc( trailer, p->matchFinderBase.crc ^ 0xFFFFFFFFU );
+  Lt_set_data_size( trailer, p->nowPos64 );
+  Lt_set_member_size( trailer, p->rc.processed + Lh_size + Lt_size );
+  if( writeblock( p->rc.outfd, trailer, Lt_size ) != Lt_size )
     p->rc.res = SZ_ERROR_WRITE;
   if( verbosity >= 1 )
     {
     unsigned long long in_size = p->nowPos64;
-    unsigned long long out_size = p->rc.processed + Fh_size + Ft_size;
+    unsigned long long out_size = p->rc.processed + Lh_size + Lt_size;
     if( in_size == 0 || out_size == 0 )
       fputs( " no data compressed.\n", stderr );
     else
diff --git a/NEWS b/NEWS
index d99cfae..bd181ae 100644
--- a/NEWS
+++ b/NEWS
@@ -1,26 +1,14 @@
-Changes in version 1.9:
+Changes in version 1.10:
 
-The option '--loose-trailing', has been added.
+Compression level '-0' now uses a dictionary size of 64 KiB instead of
+1 MiB.
 
-The test used by pdlzip to discriminate trailing data from a corrupt
-header in multimember or concatenated files has been improved to a
-Hamming distance (HD) of 3, and the 3 bit flips must happen in different
-magic bytes for the test to fail. As a consequence some kinds of files
-no longer can be appended to a lzip file as trailing data unless the
-'--loose-trailing' option is used when decompressing.
-Lziprecover can be used to remove conflicting trailing data from a file.
+Errors are now also checked when closing the input file.
 
-The 'bits/byte' ratio has been replaced with the inverse compression
-ratio in the output.
+Pdlzip now compiles on DOS with DJGPP. (Patch from Robert Riebisch).
 
-A final diagnostic is now shown at verbosity level 1 (-v) or higher if
-any file fails the test when testing multiple files.
+The configure script now accepts appending options to CFLAGS using the
+syntax 'CFLAGS+=OPTIONS'.
 
-A second '.lz' extension is no longer added to the argument of '-o' if
-it already ends in '.lz' or '.tlz'.
-
-In case of (de)compressed size mismatch, the stored size is now also
-shown in hexadecimal to ease visual comparison.
-
-The dictionary size is now shown at verbosity level 4 (-vvvv) when
-decompressing or testing.
+It has been documented in INSTALL the use of
+CFLAGS+='-D __USE_MINGW_ANSI_STDIO' when compiling on MinGW.
diff --git a/README b/README
index 517adcf..6c29e49 100644
--- a/README
+++ b/README
@@ -1,17 +1,21 @@
 Description
 
-Pdlzip is a lossless data compressor with a user interface similar to
-the one of lzip, bzip2 or gzip.
+Pdlzip is a permissively licensed implementation of the lzip data
+compressor, intended for those who can't distribute (or even use) GPL
+licensed Free Software. (The name of pdlzip comes from 'public domain
+lzip'). Pdlzip is written in C and is (hope)fully compatible with lzip 1.4
+or newer.
 
-Pdlzip uses the lzip file format; the files produced by pdlzip are
-(hope)fully compatible with lzip-1.4 or newer. Pdlzip is in fact a
-permissively licensed implementation of the lzip data compressor,
-intended for those who can't distribute (or even use) GPL licensed Free
-Software. (The name of pdlzip comes from "public domain lzip").
+Lzip is a lossless data compressor with a user interface similar to the
+one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip -0)
+or compress most files more than bzip2 (lzip -9). Decompression speed is
+intermediate between gzip and bzip2. Lzip is better than gzip and bzip2
+from a data recovery perspective. Lzip has been designed, written and
+tested with great care to replace gzip and bzip2 as the standard
+general-purpose compressed format for unix-like systems.
 
-The lzip file format is designed for data sharing and long-term
-archiving, taking into account both data integrity and decoder
-availability:
+The lzip file format is designed for data sharing and long-term archiving,
+taking into account both data integrity and decoder availability:
 
    * The lzip format provides very safe integrity checking and some data
      recovery means. The lziprecover program can repair bit flip errors
@@ -20,11 +24,11 @@ availability:
      merging of damaged copies of a file.
 
    * The lzip format is as simple as possible (but not simpler). The
-     lzip manual provides the source code of a simple decompressor along
-     with a detailed explanation of how it works, so that with the only
-     help of the lzip manual it would be possible for a digital
-     archaeologist to extract the data from a lzip file long after
-     quantum computers eventually render LZMA obsolete.
+     lzip manual provides the source code of a simple decompressor
+     along with a detailed explanation of how it works, so that with
+     the only help of the lzip manual it would be possible for a
+     digital archaeologist to extract the data from a lzip file long
+     after quantum computers eventually render LZMA obsolete.
 
    * Additionally the lzip reference implementation is copylefted, which
      guarantees that it will remain free forever.
@@ -40,8 +44,6 @@ If you keep any lzma-alone files, it is advisable to recompress them to
 lzip format. Lziprecover can convert some lzma-alone files to lzip format
 without recompressing.
 
-Pdlzip is written in C.
-
 Pdlzip includes public domain (de)compression code from the LZMA SDK
 (Software Development Kit) written by Igor Pavlov.
 
@@ -52,7 +54,7 @@ users of the most non-free platforms can share lzip files with everybody
 else.
 
 
-Copyright (C) 2010-2018 Antonio Diaz Diaz.
+Copyright (C) 2010-2019 Antonio Diaz Diaz.
 
 This file is free documentation: you have unlimited permission to copy,
 distribute and modify it.
diff --git a/carg_parser.c b/carg_parser.c
index 10ad4dc..ce01d7b 100644
--- a/carg_parser.c
+++ b/carg_parser.c
@@ -1,5 +1,5 @@
 /*  Arg_parser - POSIX/GNU command line argument parser. (C version)
-    Copyright (C) 2006-2018 Antonio Diaz Diaz.
+    Copyright (C) 2006-2019 Antonio Diaz Diaz.
 
     This library is free software. Redistribution and use in source and
     binary forms, with or without modification, are permitted provided
diff --git a/carg_parser.h b/carg_parser.h
index e1c70dd..dcae2de 100644
--- a/carg_parser.h
+++ b/carg_parser.h
@@ -1,5 +1,5 @@
 /*  Arg_parser - POSIX/GNU command line argument parser. (C version)
-    Copyright (C) 2006-2018 Antonio Diaz Diaz.
+    Copyright (C) 2006-2019 Antonio Diaz Diaz.
 
     This library is free software. Redistribution and use in source and
     binary forms, with or without modification, are permitted provided
diff --git a/configure b/configure
index 75f55bd..53ee546 100755
--- a/configure
+++ b/configure
@@ -1,12 +1,12 @@
 #! /bin/sh
 # configure script for Pdlzip - LZMA lossless data compressor
-# Copyright (C) 2010-2018 Antonio Diaz Diaz.
+# Copyright (C) 2010-2019 Antonio Diaz Diaz.
 #
 # This configure script is free software: you have unlimited permission
 # to copy, distribute and modify it.
 
 pkgname=pdlzip
-pkgversion=1.9
+pkgversion=1.10
 progname=pdlzip
 srctrigger=doc/${progname}.1
 
@@ -70,6 +70,7 @@ while [ $# != 0 ] ; do
 		echo "  CC=COMPILER           C compiler to use [${CC}]"
 		echo "  CPPFLAGS=OPTIONS      command line options for the preprocessor [${CPPFLAGS}]"
 		echo "  CFLAGS=OPTIONS        command line options for the C compiler [${CFLAGS}]"
+		echo "  CFLAGS+=OPTIONS       append options to the current value of CFLAGS"
 		echo "  LDFLAGS=OPTIONS       command line options for the linker [${LDFLAGS}]"
 		echo
 		exit 0 ;;
@@ -93,10 +94,11 @@ while [ $# != 0 ] ; do
 	--mandir=*)            mandir=${optarg} ;;
 	--no-create)              no_create=yes ;;
 
-	CC=*)             CC=${optarg} ;;
-	CPPFLAGS=*) CPPFLAGS=${optarg} ;;
-	CFLAGS=*)     CFLAGS=${optarg} ;;
-	LDFLAGS=*)   LDFLAGS=${optarg} ;;
+	CC=*)              CC=${optarg} ;;
+	CPPFLAGS=*)  CPPFLAGS=${optarg} ;;
+	CFLAGS=*)      CFLAGS=${optarg} ;;
+	CFLAGS+=*)     CFLAGS="${CFLAGS} ${optarg}" ;;
+	LDFLAGS=*)    LDFLAGS=${optarg} ;;
 
 	--*)
 		echo "configure: WARNING: unrecognized option: '${option}'" 1>&2 ;;
@@ -168,7 +170,7 @@ echo "LDFLAGS = ${LDFLAGS}"
 rm -f Makefile
 cat > Makefile << EOF
 # Makefile for Pdlzip - LZMA lossless data compressor
-# Copyright (C) 2010-2018 Antonio Diaz Diaz.
+# Copyright (C) 2010-2019 Antonio Diaz Diaz.
 # This file was generated automatically by configure. Don't edit.
 #
 # This Makefile is free software: you have unlimited permission
diff --git a/doc/pdlzip.1 b/doc/pdlzip.1
index e971323..e160d37 100644
--- a/doc/pdlzip.1
+++ b/doc/pdlzip.1
@@ -1,14 +1,26 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.1.
-.TH PDLZIP "1" "February 2018" "pdlzip 1.9" "User Commands"
+.TH PDLZIP "1" "January 2019" "pdlzip 1.10" "User Commands"
 .SH NAME
 pdlzip \- reduces the size of files
 .SH SYNOPSIS
 .B pdlzip
 [\fI\,options\/\fR] [\fI\,files\/\fR]
 .SH DESCRIPTION
-Pdlzip \- A permissively licensed implementation of the lzip data
-compressor also able to decompress legacy lzma\-alone (.lzma) files.
+Pdlzip is a permissively licensed implementation of the lzip data
+compressor, intended for those who can't distribute (or even use) GPL
+licensed Free Software. (The name of pdlzip comes from 'public domain
+lzip'). Pdlzip is written in C and is (hope)fully compatible with lzip 1.4
+or newer.
 .PP
+Lzip is a lossless data compressor with a user interface similar to the
+one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip \fB\-0\fR)
+or compress most files more than bzip2 (lzip \fB\-9\fR). Decompression speed is
+intermediate between gzip and bzip2. Lzip is better than gzip and bzip2
+from a data recovery perspective. Lzip has been designed, written and
+tested with great care to replace gzip and bzip2 as the standard
+general\-purpose compressed format for unix\-like systems.
+.PP
+Pdlzip is also able to decompress legacy lzma\-alone (.lzma) files.
 Lzma\-alone is a very bad format; it is essentially a raw LZMA stream.
 If you keep any lzma\-alone files, it is advisable to recompress them to
 lzip format. Lziprecover can convert some lzma\-alone files to lzip format
@@ -57,11 +69,11 @@ test compressed file integrity
 \fB\-v\fR, \fB\-\-verbose\fR
 be verbose (a 2nd \fB\-v\fR gives more)
 .TP
-\fB\-1\fR .. \fB\-9\fR
+\fB\-0\fR .. \fB\-9\fR
 set compression level [default 6]
 .TP
 \fB\-\-fast\fR
-alias for \fB\-1\fR
+alias for \fB\-0\fR
 .TP
 \fB\-\-best\fR
 alias for \fB\-9\fR
@@ -91,7 +103,7 @@ Report bugs to lzip\-bug@nongnu.org
 .br
 Pdlzip home page: http://www.nongnu.org/lzip/pdlzip.html
 .SH COPYRIGHT
-Copyright \(co 2018 Antonio Diaz Diaz.
+Copyright \(co 2019 Antonio Diaz Diaz.
 Public Domain 2009 Igor Pavlov.
 License 2\-clause BSD.
 .br
diff --git a/lzip.h b/lzip.h
index 0f65f30..f0147fb 100644
--- a/lzip.h
+++ b/lzip.h
@@ -1,5 +1,5 @@
 /*  Pdlzip - LZMA lossless data compressor
-    Copyright (C) 2010-2018 Antonio Diaz Diaz.
+    Copyright (C) 2010-2019 Antonio Diaz Diaz.
 
     This program is free software. Redistribution and use in source and
     binary forms, with or without modification, are permitted provided
@@ -55,7 +55,7 @@ enum {
 /* defined in main.c */
 extern int verbosity;
 
-struct Pretty_print
+struct Pretty_print		/* requires global var 'int verbosity' */
   {
   const char * name;
   char * padded_name;
@@ -82,7 +82,7 @@ static inline void Pp_init( struct Pretty_print * const pp,
     {
     const char * const s = filenames[i];
     const unsigned len = (strcmp( s, "-" ) == 0) ? stdin_name_len : strlen( s );
-    if( len > pp->longest_name ) pp->longest_name = len;
+    if( pp->longest_name < len ) pp->longest_name = len;
     }
   if( pp->longest_name == 0 ) pp->longest_name = stdin_name_len;
   }
@@ -153,43 +153,43 @@ static inline int real_bits( unsigned value )
   }
 
 
-static const uint8_t magic_string[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */
+static const uint8_t lzip_magic[4] = { 0x4C, 0x5A, 0x49, 0x50 }; /* "LZIP" */
 
-typedef uint8_t File_header[6];		/* 0-3 magic bytes */
+typedef uint8_t Lzip_header[6];		/* 0-3 magic bytes */
 					/*   4 version */
 					/*   5 coded_dict_size */
-enum { Fh_size = 6 };
+enum { Lh_size = 6 };
 
-static inline void Fh_set_magic( File_header data )
-  { memcpy( data, magic_string, 4 ); data[4] = 1; }
+static inline void Lh_set_magic( Lzip_header data )
+  { memcpy( data, lzip_magic, 4 ); data[4] = 1; }
 
-static inline bool Fh_verify_magic( const File_header data )
-  { return ( memcmp( data, magic_string, 4 ) == 0 ); }
+static inline bool Lh_verify_magic( const Lzip_header data )
+  { return ( memcmp( data, lzip_magic, 4 ) == 0 ); }
 
 /* detect (truncated) header */
-static inline bool Fh_verify_prefix( const File_header data, const int sz )
+static inline bool Lh_verify_prefix( const Lzip_header data, const int sz )
   {
   int i; for( i = 0; i < sz && i < 4; ++i )
-    if( data[i] != magic_string[i] ) return false;
+    if( data[i] != lzip_magic[i] ) return false;
   return ( sz > 0 );
   }
 
 /* detect corrupt header */
-static inline bool Fh_verify_corrupt( const File_header data )
+static inline bool Lh_verify_corrupt( const Lzip_header data )
   {
   int matches = 0;
   int i; for( i = 0; i < 4; ++i )
-    if( data[i] == magic_string[i] ) ++matches;
+    if( data[i] == lzip_magic[i] ) ++matches;
   return ( matches > 1 && matches < 4 );
   }
 
-static inline uint8_t Fh_version( const File_header data )
+static inline uint8_t Lh_version( const Lzip_header data )
   { return data[4]; }
 
-static inline bool Fh_verify_version( const File_header data )
+static inline bool Lh_verify_version( const Lzip_header data )
   { return ( data[4] == 1 ); }
 
-static inline unsigned Fh_get_dictionary_size( const File_header data )
+static inline unsigned Lh_get_dictionary_size( const Lzip_header data )
   {
   unsigned sz = ( 1 << ( data[5] & 0x1F ) );
   if( sz > min_dictionary_size )
@@ -197,7 +197,7 @@ static inline unsigned Fh_get_dictionary_size( const File_header data )
   return sz;
   }
 
-static inline bool Fh_set_dictionary_size( File_header data, const unsigned sz )
+static inline bool Lh_set_dictionary_size( Lzip_header data, const unsigned sz )
   {
   if( !isvalid_ds( sz ) ) return false;
   data[5] = real_bits( sz - 1 );
@@ -214,41 +214,40 @@ static inline bool Fh_set_dictionary_size( File_header data, const unsigned sz )
   }
 
 
-typedef uint8_t File_trailer[20];
+typedef uint8_t Lzip_trailer[20];
 			/*  0-3  CRC32 of the uncompressed data */
 			/*  4-11 size of the uncompressed data */
 			/* 12-19 member size including header and trailer */
+enum { Lt_size = 20 };
 
-enum { Ft_size = 20 };
-
-static inline unsigned Ft_get_data_crc( const File_trailer data )
+static inline unsigned Lt_get_data_crc( const Lzip_trailer data )
   {
   unsigned tmp = 0;
   int i; for( i = 3; i >= 0; --i ) { tmp <<= 8; tmp += data[i]; }
   return tmp;
   }
 
-static inline void Ft_set_data_crc( File_trailer data, unsigned crc )
+static inline void Lt_set_data_crc( Lzip_trailer data, unsigned crc )
   { int i; for( i = 0; i <= 3; ++i ) { data[i] = (uint8_t)crc; crc >>= 8; } }
 
-static inline unsigned long long Ft_get_data_size( const File_trailer data )
+static inline unsigned long long Lt_get_data_size( const Lzip_trailer data )
   {
   unsigned long long tmp = 0;
   int i; for( i = 11; i >= 4; --i ) { tmp <<= 8; tmp += data[i]; }
   return tmp;
   }
 
-static inline void Ft_set_data_size( File_trailer data, unsigned long long sz )
+static inline void Lt_set_data_size( Lzip_trailer data, unsigned long long sz )
   { int i; for( i = 4; i <= 11; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; } }
 
-static inline unsigned long long Ft_get_member_size( const File_trailer data )
+static inline unsigned long long Lt_get_member_size( const Lzip_trailer data )
   {
   unsigned long long tmp = 0;
   int i; for( i = 19; i >= 12; --i ) { tmp <<= 8; tmp += data[i]; }
   return tmp;
   }
 
-static inline void Ft_set_member_size( File_trailer data, unsigned long long sz )
+static inline void Lt_set_member_size( Lzip_trailer data, unsigned long long sz )
   { int i; for( i = 12; i <= 19; ++i ) { data[i] = (uint8_t)sz; sz >>= 8; } }
 
 
diff --git a/main.c b/main.c
index 4803491..a9195d4 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,6 @@
 /*  Pdlzip - LZMA lossless data compressor
     2009-08-14 : Igor Pavlov : Public domain
-    Copyright (C) 2010-2018 Antonio Diaz Diaz.
+    Copyright (C) 2010-2019 Antonio Diaz Diaz.
 
     This program is free software. Redistribution and use in source and
     binary forms, with or without modification, are permitted provided
@@ -38,19 +38,24 @@
 #include <unistd.h>
 #include <utime.h>
 #include <sys/stat.h>
-#if defined(__MSVCRT__)
+#if defined(__MSVCRT__) || defined(__OS2__) || defined(__DJGPP__)
 #include <io.h>
+#if defined(__MSVCRT__)
 #define fchmod(x,y) 0
 #define fchown(x,y,z) 0
 #define SIGHUP SIGTERM
 #define S_ISSOCK(x) 0
+#ifndef S_IRGRP
 #define S_IRGRP 0
 #define S_IWGRP 0
 #define S_IROTH 0
 #define S_IWOTH 0
 #endif
-#if defined(__OS2__)
-#include <io.h>
+#endif
+#if defined(__DJGPP__)
+#define S_ISSOCK(x) 0
+#define S_ISVTX 0
+#endif
 #endif
 
 #include "carg_parser.h"
@@ -68,9 +73,8 @@
 
 int verbosity = 0;
 
-const char * const Program_name = "Pdlzip";
 const char * const program_name = "pdlzip";
-const char * const program_year = "2018";
+const char * const program_year = "2019";
 const char * invocation_name = 0;
 
 const struct { const char * from; const char * to; } known_extensions[] = {
@@ -87,6 +91,8 @@ struct Lzma_options
 
 enum Mode { m_compress, m_decompress, m_test };
 
+/* Variables used in signal handler context.
+   They are not declared volatile because the handler never returns. */
 char * output_filename = 0;
 int outfd = -1;
 bool delete_output_on_interrupt = false;
@@ -94,9 +100,20 @@ bool delete_output_on_interrupt = false;
 
 static void show_help( void )
   {
-  printf( "%s - A permissively licensed implementation of the lzip data\n", Program_name );
-  printf( "compressor also able to decompress legacy lzma-alone (.lzma) files.\n"
-          "\nLzma-alone is a very bad format; it is essentially a raw LZMA stream.\n"
+  printf( "Pdlzip is a permissively licensed implementation of the lzip data\n"
+          "compressor, intended for those who can't distribute (or even use) GPL\n"
+          "licensed Free Software. (The name of pdlzip comes from 'public domain\n"
+          "lzip'). Pdlzip is written in C and is (hope)fully compatible with lzip 1.4\n"
+          "or newer.\n"
+          "\nLzip is a lossless data compressor with a user interface similar to the\n"
+          "one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip -0)\n"
+          "or compress most files more than bzip2 (lzip -9). Decompression speed is\n"
+          "intermediate between gzip and bzip2. Lzip is better than gzip and bzip2\n"
+          "from a data recovery perspective. Lzip has been designed, written and\n"
+          "tested with great care to replace gzip and bzip2 as the standard\n"
+          "general-purpose compressed format for unix-like systems.\n"
+          "\nPdlzip is also able to decompress legacy lzma-alone (.lzma) files.\n"
+          "Lzma-alone is a very bad format; it is essentially a raw LZMA stream.\n"
           "If you keep any lzma-alone files, it is advisable to recompress them to\n"
           "lzip format. Lziprecover can convert some lzma-alone files to lzip format\n"
           "without recompressing.\n"
@@ -116,8 +133,8 @@ static void show_help( void )
           "  -s, --dictionary-size=<bytes>  set dictionary size limit in bytes [8 MiB]\n"
           "  -t, --test                     test compressed file integrity\n"
           "  -v, --verbose                  be verbose (a 2nd -v gives more)\n"
-          "  -1 .. -9                       set compression level [default 6]\n"
-          "      --fast                     alias for -1\n"
+          "  -0 .. -9                       set compression level [default 6]\n"
+          "      --fast                     alias for -0\n"
           "      --best                     alias for -9\n"
           "      --loose-trailing           allow trailing data seeming corrupt header\n"
           "If no file names are given, or if a file is '-', pdlzip compresses or\n"
@@ -255,7 +272,7 @@ static int get_dict_size( const char * const arg )
   const long bits = strtol( arg, &tail, 0 );
   if( bits >= min_dictionary_bits &&
       bits <= max_dictionary_bits_c && *tail == 0 )
-    return ( 1 << bits );
+    return 1 << bits;
   return getnum( arg, min_dictionary_size, max_dictionary_size_c );
   }
 
@@ -393,8 +410,17 @@ static bool check_tty( const char * const input_filename, const int infd,
   }
 
 
+static void set_signals( void (*action)(int) )
+  {
+  signal( SIGHUP, action );
+  signal( SIGINT, action );
+  signal( SIGTERM, action );
+  }
+
+
 void cleanup_and_fail( const int retval )
   {
+  set_signals( SIG_IGN );			/* ignore signals */
   if( delete_output_on_interrupt )
     {
     delete_output_on_interrupt = false;
@@ -409,6 +435,14 @@ void cleanup_and_fail( const int retval )
   }
 
 
+void signal_handler( int sig )
+  {
+  if( sig ) {}				/* keep compiler happy */
+  show_error( "Control-C or similar caught, quitting.", 0, false );
+  cleanup_and_fail( 1 );
+  }
+
+
      /* Set permissions, owner and times. */
 static void close_and_set_permissions( const struct stat * const in_statsp )
   {
@@ -448,14 +482,14 @@ static int compress( const struct Lzma_options * const encoder_options,
   {
   int retval = 0;
   CLzmaEncHandle encoder = 0;
-  File_header header;
-  Fh_set_magic( header );
+  Lzip_header header;
+  Lh_set_magic( header );
 
   if( verbosity >= 1 ) Pp_show_msg( pp, 0 );
-  if( Fh_set_dictionary_size( header, encoder_options->dictionary_size ) &&
+  if( Lh_set_dictionary_size( header, encoder_options->dictionary_size ) &&
       encoder_options->match_len_limit >= min_match_len_limit &&
       encoder_options->match_len_limit <= max_match_len )
-    encoder = LzmaEnc_Init( Fh_get_dictionary_size( header ),
+    encoder = LzmaEnc_Init( Lh_get_dictionary_size( header ),
                             encoder_options->match_len_limit, infd, outfd );
   else internal_error( "invalid argument to encoder." );
 
@@ -465,7 +499,7 @@ static int compress( const struct Lzma_options * const encoder_options,
     return 1;
     }
 
-  if( writeblock( outfd, header, Fh_size ) != Fh_size )
+  if( writeblock( outfd, header, Lh_size ) != Lh_size )
     { show_error( "Can't write output file", errno, false ); retval = 1; }
   else
     if( LzmaEnc_Encode( encoder ) != 0 )
@@ -578,7 +612,7 @@ static int lzip_decode( CLzmaDec *decoder, const int infd,
                         int * const inPos, int * const inSize,
                         const unsigned dictionary_size )
   {
-  unsigned long long member_size = Fh_size, data_size = 0;
+  unsigned long long member_size = Lh_size, data_size = 0;
   uint8_t outBuf[OUT_BUF_SIZE];
   int outPos = 0;
   uint32_t crc = 0xFFFFFFFFU;
@@ -612,7 +646,7 @@ static int lzip_decode( CLzmaDec *decoder, const int infd,
 
     if (inProcessed == 0 && outProcessed == 0)
       {
-      File_trailer trailer;
+      Lzip_trailer trailer;
       int i;
       unsigned td_crc;
       unsigned long long td_size, tm_size;
@@ -620,9 +654,9 @@ static int lzip_decode( CLzmaDec *decoder, const int infd,
 
       if( status != LZMA_STATUS_FINISHED_WITH_MARK )
         { Pp_show_msg( pp, "Data error." ); return 2; }
-      if( *inSize - *inPos < Ft_size &&
+      if( *inSize - *inPos < Lt_size &&
           !read_inbuf( infd, inBuf, inPos, inSize ) ) return 1;
-      if( *inSize - *inPos < Ft_size )
+      if( *inSize - *inPos < Lt_size )
         {
         error = true;
         if( verbosity >= 0 )
@@ -632,12 +666,12 @@ static int lzip_decode( CLzmaDec *decoder, const int infd,
                            " some checks may fail.\n", *inSize - *inPos );
           }
         }
-      for( i = 0; i < Ft_size && *inPos < *inSize; ++i )
+      for( i = 0; i < Lt_size && *inPos < *inSize; ++i )
         trailer[i] = inBuf[(*inPos)++];
       member_size += i;
-      while( i < Ft_size ) trailer[i++] = 0;
+      while( i < Lt_size ) trailer[i++] = 0;
       crc ^= 0xFFFFFFFFU;
-      td_crc = Ft_get_data_crc( trailer );
+      td_crc = Lt_get_data_crc( trailer );
       if( td_crc != crc )
         {
         error = true;
@@ -648,7 +682,7 @@ static int lzip_decode( CLzmaDec *decoder, const int infd,
                    td_crc, crc );
           }
         }
-      td_size = Ft_get_data_size( trailer );
+      td_size = Lt_get_data_size( trailer );
       if( td_size != data_size )
         {
         error = true;
@@ -659,7 +693,7 @@ static int lzip_decode( CLzmaDec *decoder, const int infd,
                    td_size, td_size, data_size, data_size );
           }
         }
-      tm_size = Ft_get_member_size( trailer );
+      tm_size = Lt_get_member_size( trailer );
       if( tm_size != member_size )
         {
         error = true;
@@ -709,38 +743,38 @@ static int decompress( const int infd, struct Pretty_print * const pp,
     {
     int i, size;
     unsigned dictionary_size;
-    File_header header;
+    Lzip_header header;
     if( inSize - inPos < lzma_header_size &&
         !read_inbuf( infd, inBuf, &inPos, &inSize ) ) return 1;
     size = inSize - inPos;
-    for( i = 0; i < size && i < Fh_size; ++i )
+    for( i = 0; i < size && i < Lh_size; ++i )
       raw_props[i] = header[i] = inBuf[inPos++];
-    if( size <= Fh_size )			/* End Of File */
+    if( size <= Lh_size )			/* End Of File */
       {
       if( first_member )
         { show_file_error( pp->name, "File ends unexpectedly at member header.", 0 );
           retval = 2; }
-      else if( Fh_verify_prefix( header, size ) )
+      else if( Lh_verify_prefix( header, size ) )
         { Pp_show_msg( pp, "Truncated header in multimember file." );
           retval = 2; }
       else if( size > 0 && !ignore_trailing )
         { Pp_show_msg( pp, trailing_msg ); retval = 2; }
       break;
       }
-    if( !Fh_verify_magic( header ) )
+    if( !Lh_verify_magic( header ) )
       {
       if( !first_member )
         {
-        if( !loose_trailing && Fh_verify_corrupt( header ) )
+        if( !loose_trailing && Lh_verify_corrupt( header ) )
           { Pp_show_msg( pp, "Corrupt header in multimember file." );
             retval = 2; }
         else if( !ignore_trailing )
           { Pp_show_msg( pp, trailing_msg ); retval = 2; }
         break;
         }
-      if( inSize - inPos >= lzma_header_size - Fh_size )  /* try lzma-alone */
+      if( inSize - inPos >= lzma_header_size - Lh_size )  /* try lzma-alone */
         {
-        for( i = Fh_size; i < lzma_header_size; ++i )
+        for( i = Lh_size; i < lzma_header_size; ++i )
           raw_props[i] = inBuf[inPos++];
         if( ( raw_props[12] == 0 || raw_props[12] == 0xFF ) &&
             raw_props[12] == raw_props[11] && raw_props[0] < (9 * 5 * 5) )
@@ -763,15 +797,15 @@ static int decompress( const int infd, struct Pretty_print * const pp,
     if( lzip_mode )
       {
       int ds, i;
-      if( !Fh_verify_version( header ) )
+      if( !Lh_verify_version( header ) )
         {
         if( verbosity >= 0 )
           { Pp_show_msg( pp, 0 );
             fprintf( stderr, "Version %d member format not supported.\n",
-                     Fh_version( header ) ); }
+                     Lh_version( header ) ); }
         retval = 2; break;
         }
-      dictionary_size = Fh_get_dictionary_size( header );
+      dictionary_size = Lh_get_dictionary_size( header );
       if( !isvalid_ds( dictionary_size ) )
         { Pp_show_msg( pp, "Invalid dictionary size in member header." );
           retval = 2; break; }
@@ -803,22 +837,6 @@ static int decompress( const int infd, struct Pretty_print * const pp,
   }
 
 
-void signal_handler( int sig )
-  {
-  if( sig ) {}				/* keep compiler happy */
-  show_error( "Control-C or similar caught, quitting.", 0, false );
-  cleanup_and_fail( 1 );
-  }
-
-
-static void set_signals( void )
-  {
-  signal( SIGHUP, signal_handler );
-  signal( SIGINT, signal_handler );
-  signal( SIGTERM, signal_handler );
-  }
-
-
 CRC32 crc32;
 
 
@@ -863,11 +881,9 @@ void show_error( const char * const msg, const int errcode, const bool help )
   {
   if( verbosity < 0 ) return;
   if( msg && msg[0] )
-    {
-    fprintf( stderr, "%s: %s", program_name, msg );
-    if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
-    fputc( '\n', stderr );
-    }
+    fprintf( stderr, "%s: %s%s%s\n", program_name, msg,
+             ( errcode > 0 ) ? ": " : "",
+             ( errcode > 0 ) ? strerror( errcode ) : "" );
   if( help )
     fprintf( stderr, "Try '%s --help' for more information.\n",
              invocation_name );
@@ -877,10 +893,10 @@ void show_error( const char * const msg, const int errcode, const bool help )
 void show_file_error( const char * const filename, const char * const msg,
                       const int errcode )
   {
-  if( verbosity < 0 ) return;
-  fprintf( stderr, "%s: %s: %s", program_name, filename, msg );
-  if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
-  fputc( '\n', stderr );
+  if( verbosity >= 0 )
+    fprintf( stderr, "%s: %s: %s%s%s\n", program_name, filename, msg,
+             ( errcode > 0 ) ? ": " : "",
+             ( errcode > 0 ) ? strerror( errcode ) : "" );
   }
 
 
@@ -898,7 +914,7 @@ int main( const int argc, const char * const argv[] )
      to the corresponding LZMA compression modes. */
   const struct Lzma_options option_mapping[] =
     {
-    { 1 << 20,   5 },		/* -0 */
+    { 1 << 16,   5 },		/* -0 */
     { 1 << 20,   5 },		/* -1 */
     { 3 << 19,   6 },		/* -2 */
     { 1 << 21,   8 },		/* -3 */
@@ -1004,7 +1020,7 @@ int main( const int argc, const char * const argv[] )
       }
     } /* end process options */
 
-#if defined(__MSVCRT__) || defined(__OS2__)
+#if defined(__MSVCRT__) || defined(__OS2__) || defined(__DJGPP__)
   setmode( STDIN_FILENO, O_BINARY );
   setmode( STDOUT_FILENO, O_BINARY );
 #endif
@@ -1024,7 +1040,7 @@ int main( const int argc, const char * const argv[] )
 
   if( !to_stdout && program_mode != m_test &&
       ( filenames_given || default_output_filename[0] ) )
-    set_signals();
+    set_signals( signal_handler );
 
   Pp_init( &pp, filenames, num_filenames );
 
@@ -1103,6 +1119,12 @@ int main( const int argc, const char * const argv[] )
     else
       tmp = decompress( infd, &pp, ignore_trailing,
                         loose_trailing, program_mode == m_test );
+    if( close( infd ) != 0 )
+      {
+      show_error( input_filename[0] ? "Error closing input file" :
+                                      "Error closing stdin", errno, false );
+      if( tmp < 1 ) tmp = 1;
+      }
     if( tmp > retval ) retval = tmp;
     if( tmp )
       { if( program_mode != m_test ) cleanup_and_fail( retval );
@@ -1112,7 +1134,6 @@ int main( const int argc, const char * const argv[] )
       close_and_set_permissions( in_statsp );
     if( input_filename[0] )
       {
-      close( infd );
       if( !keep_input_files && !to_stdout && program_mode != m_test )
         remove( input_filename );
       }
diff --git a/testsuite/check.sh b/testsuite/check.sh
index 406c6e0..c3d859c 100755
--- a/testsuite/check.sh
+++ b/testsuite/check.sh
@@ -1,6 +1,6 @@
 #! /bin/sh
 # check script for Pdlzip - LZMA lossless data compressor
-# Copyright (C) 2010-2018 Antonio Diaz Diaz.
+# Copyright (C) 2010-2019 Antonio Diaz Diaz.
 #
 # This script is free software: you have unlimited permission
 # to copy, distribute and modify it.
@@ -36,12 +36,15 @@ test_failed() { fail=1 ; printf " $1" ; [ -z "$2" ] || printf "($2)" ; }
 printf "testing pdlzip-%s..." "$2"
 
 "${LZIP}" -fkqm4 in
-{ [ $? = 1 ] && [ ! -e in.lz ] ; } || test_failed $LINENO
+[ $? = 1 ] || test_failed $LINENO
+[ ! -e in.lz ] || test_failed $LINENO
 "${LZIP}" -fkqm274 in
-{ [ $? = 1 ] && [ ! -e in.lz ] ; } || test_failed $LINENO
+[ $? = 1 ] || test_failed $LINENO
+[ ! -e in.lz ] || test_failed $LINENO
 for i in bad_size -1 0 4095 513MiB 1G 1T 1P 1E 1Z 1Y 10KB ; do
 	"${LZIP}" -fkqs $i in
-	{ [ $? = 1 ] && [ ! -e in.lz ] ; } || test_failed $LINENO $i
+	[ $? = 1 ] || test_failed $LINENO $i
+	[ ! -e in.lz ] || test_failed $LINENO $i
 done
 "${LZIP}" -tq in
 [ $? = 2 ] || test_failed $LINENO
@@ -86,36 +89,46 @@ cmp in copy || test_failed $LINENO
 "${LZIP}" -cd "${testdir}"/test.txt.lzma > copy || test_failed $LINENO
 cmp in copy || test_failed $LINENO
 
-rm -f copy
+rm -f copy || framework_failure
 cat "${in_lz}" > copy.lz || framework_failure
 "${LZIP}" -dk copy.lz || test_failed $LINENO
 cmp in copy || test_failed $LINENO
 printf "to be overwritten" > copy || framework_failure
 "${LZIP}" -d copy.lz 2> /dev/null
 [ $? = 1 ] || test_failed $LINENO
-"${LZIP}" -df copy.lz
-{ [ $? = 0 ] && [ ! -e copy.lz ] && cmp in copy ; } || test_failed $LINENO
+"${LZIP}" -df copy.lz || test_failed $LINENO
+[ ! -e copy.lz ] || test_failed $LINENO
+cmp in copy || test_failed $LINENO
+
+rm -f copy || framework_failure
+cat "${in_lz}" > copy.lz || framework_failure
+"${LZIP}" -d -S100k copy.lz || test_failed $LINENO	# ignore -S
+[ ! -e copy.lz ] || test_failed $LINENO
+cmp in copy || test_failed $LINENO
 
 printf "to be overwritten" > copy || framework_failure
 "${LZIP}" -df -o copy < "${in_lz}" || test_failed $LINENO
 cmp in copy || test_failed $LINENO
 
-rm -f copy
+rm -f copy || framework_failure
 "${LZIP}" -s16 < in > anyothername || test_failed $LINENO
-"${LZIP}" -dv --output copy - anyothername - < "${in_lz}" 2> /dev/null
-{ [ $? = 0 ] && cmp in copy && cmp in anyothername.out ; } ||
+"${LZIP}" -dv --output copy - anyothername - < "${in_lz}" 2> /dev/null ||
 	test_failed $LINENO
-rm -f copy anyothername.out
+cmp in copy || test_failed $LINENO
+cmp in anyothername.out || test_failed $LINENO
+rm -f copy anyothername.out || framework_failure
 
 "${LZIP}" -tq in "${in_lz}"
 [ $? = 2 ] || test_failed $LINENO
 "${LZIP}" -tq nx_file.lz "${in_lz}"
 [ $? = 1 ] || test_failed $LINENO
 "${LZIP}" -cdq in "${in_lz}" > copy
-{ [ $? = 2 ] && cat copy in | cmp in - ; } || test_failed $LINENO
+[ $? = 2 ] || test_failed $LINENO
+cat copy in | cmp in - || test_failed $LINENO
 "${LZIP}" -cdq nx_file.lz "${in_lz}" > copy
-{ [ $? = 1 ] && cmp in copy ; } || test_failed $LINENO
-rm -f copy
+[ $? = 1 ] || test_failed $LINENO
+cmp in copy || test_failed $LINENO
+rm -f copy || framework_failure
 cat "${in_lz}" > copy.lz || framework_failure
 for i in 1 2 3 4 5 6 7 ; do
 	printf "g" >> copy.lz || framework_failure
@@ -123,11 +136,15 @@ for i in 1 2 3 4 5 6 7 ; do
 	[ $? = 2 ] || test_failed $LINENO $i
 done
 "${LZIP}" -dq in copy.lz
-{ [ $? = 2 ] && [ -e copy.lz ] && [ ! -e copy ] && [ ! -e in.out ] ; } ||
-	test_failed $LINENO
+[ $? = 2 ] || test_failed $LINENO
+[ -e copy.lz ] || test_failed $LINENO
+[ ! -e copy ] || test_failed $LINENO
+[ ! -e in.out ] || test_failed $LINENO
 "${LZIP}" -dq nx_file.lz copy.lz
-{ [ $? = 1 ] && [ ! -e copy.lz ] && [ ! -e nx_file ] && cmp in copy ; } ||
-	test_failed $LINENO
+[ $? = 1 ] || test_failed $LINENO
+[ ! -e copy.lz ] || test_failed $LINENO
+[ ! -e nx_file ] || test_failed $LINENO
+cmp in copy || test_failed $LINENO
 
 cat in in > in2 || framework_failure
 cat "${in_lz}" "${in_lz}" > in2.lz || framework_failure
@@ -142,18 +159,21 @@ cmp in2 copy2 || test_failed $LINENO
 
 printf "\ngarbage" >> copy2.lz || framework_failure
 "${LZIP}" -tvvvv copy2.lz 2> /dev/null || test_failed $LINENO
-rm -f copy2
+rm -f copy2 || framework_failure
 "${LZIP}" -atq copy2.lz
 [ $? = 2 ] || test_failed $LINENO
 "${LZIP}" -atq < copy2.lz
 [ $? = 2 ] || test_failed $LINENO
 "${LZIP}" -adkq copy2.lz
-{ [ $? = 2 ] && [ ! -e copy2 ] ; } || test_failed $LINENO
+[ $? = 2 ] || test_failed $LINENO
+[ ! -e copy2 ] || test_failed $LINENO
 "${LZIP}" -adkq -o copy2 < copy2.lz
-{ [ $? = 2 ] && [ ! -e copy2 ] ; } || test_failed $LINENO
+[ $? = 2 ] || test_failed $LINENO
+[ ! -e copy2 ] || test_failed $LINENO
 printf "to be overwritten" > copy2 || framework_failure
 "${LZIP}" -df copy2.lz || test_failed $LINENO
 cmp in2 copy2 || test_failed $LINENO
+rm -f in2 copy2 || framework_failure
 
 printf "\ntesting   compression..."
 
@@ -189,33 +209,54 @@ for i in s4Ki 0 1 2 3 4 5 6 7 8 9 ; do
 	"${LZIP}" -df -o copy < out.lz || test_failed $LINENO $i
 	cmp in copy || test_failed $LINENO $i
 done
+rm -f out.lz || framework_failure
 
 printf "\ntesting bad input..."
 
 headers='LZIp LZiP LZip LzIP LzIp LziP lZIP lZIp lZiP lzIP'
 body='\001\014\000\203\377\373\377\377\300\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000$\000\000\000\000\000\000\000'
-cat "${in_lz}" > in0.lz
-printf "LZIP${body}" >> in0.lz
-if "${LZIP}" -tq in0.lz ; then
+cat "${in_lz}" > int.lz
+printf "LZIP${body}" >> int.lz
+if "${LZIP}" -tq int.lz ; then
 	for header in ${headers} ; do
-		printf "${header}${body}" > in0.lz	# first member
-		"${LZIP}" -tq in0.lz
+		printf "${header}${body}" > int.lz	# first member
+		"${LZIP}" -tq int.lz
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -tq < int.lz
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -cdq int.lz > /dev/null
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -tq --loose-trailing int.lz
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -tq --loose-trailing < int.lz
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -cdq --loose-trailing int.lz > /dev/null
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		cat "${in_lz}" > int.lz
+		printf "${header}${body}" >> int.lz	# trailing data
+		"${LZIP}" -tq int.lz
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -tq < int.lz
+		[ $? = 2 ] || test_failed $LINENO ${header}
+		"${LZIP}" -cdq int.lz > /dev/null
 		[ $? = 2 ] || test_failed $LINENO ${header}
-		"${LZIP}" -tq --loose-trailing in0.lz
+		"${LZIP}" -t --loose-trailing int.lz ||
+			test_failed $LINENO ${header}
+		"${LZIP}" -t --loose-trailing < int.lz ||
+			test_failed $LINENO ${header}
+		"${LZIP}" -cd --loose-trailing int.lz > /dev/null ||
+			test_failed $LINENO ${header}
+		"${LZIP}" -tq --loose-trailing --trailing-error int.lz
 		[ $? = 2 ] || test_failed $LINENO ${header}
-		cat "${in_lz}" > in0.lz
-		printf "${header}${body}" >> in0.lz	# trailing data
-		"${LZIP}" -tq in0.lz
+		"${LZIP}" -tq --loose-trailing --trailing-error < int.lz
 		[ $? = 2 ] || test_failed $LINENO ${header}
-		"${LZIP}" -t --loose-trailing in0.lz
-		[ $? = 0 ] || test_failed $LINENO ${header}
-		"${LZIP}" -tq --loose-trailing --trailing-error in0.lz
+		"${LZIP}" -cdq --loose-trailing --trailing-error int.lz > /dev/null
 		[ $? = 2 ] || test_failed $LINENO ${header}
 	done
 else
 	printf "\nwarning: skipping header test: 'printf' does not work on your system."
 fi
-rm -f in0.lz
+rm -f int.lz || framework_failure
 
 cat "${in_lz}" "${in_lz}" "${in_lz}" > in3.lz || framework_failure
 if dd if=in3.lz of=trunc.lz bs=14752 count=1 2> /dev/null &&
@@ -234,7 +275,7 @@ if dd if=in3.lz of=trunc.lz bs=14752 count=1 2> /dev/null &&
 else
 	printf "\nwarning: skipping truncation test: 'dd' does not work on your system."
 fi
-rm -f in3.lz trunc.lz
+rm -f in2.lz in3.lz trunc.lz out || framework_failure
 
 cat "${in_lz}" > ingin.lz || framework_failure
 printf "g" >> ingin.lz || framework_failure
@@ -245,7 +286,7 @@ cmp in copy || test_failed $LINENO
 "${LZIP}" -t < ingin.lz || test_failed $LINENO
 "${LZIP}" -d < ingin.lz > copy || test_failed $LINENO
 cmp in copy || test_failed $LINENO
-rm -f ingin.lz
+rm -f copy ingin.lz || framework_failure
 
 echo
 if [ ${fail} = 0 ] ; then