Adding upstream version 0.3.upstream/0.3

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

1 files changed, 720 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..9f4c739
--- /dev/null
+++ b/main.c
@@ -0,0 +1,720 @@
+/*  Xlunzip - Test tool for the lunzip linux module
+    Copyright (C) 2016-2018 Antonio Diaz Diaz.
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+    Exit status: 0 for a normal exit, 1 for environmental problems
+    (file not found, invalid flags, I/O errors, etc), 2 to indicate a
+    corrupt or invalid input file, 3 for an internal consistency error
+    (eg, bug) which caused xlunzip to panic.
+*/
+
+#define _FILE_OFFSET_BITS 64
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <utime.h>
+#include <sys/stat.h>
+#if defined(__MSVCRT__)
+#include <io.h>
+#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
+#endif
+#if defined(__OS2__)
+#include <io.h>
+#endif
+
+#include "carg_parser.h"
+#include "linux_lzip.h"
+#include "linux_lunzip.h"
+#include "lzip.h"
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+#if CHAR_BIT != 8
+#error "Environments where CHAR_BIT != 8 are not supported."
+#endif
+
+int verbosity = 0;
+void cleanup_and_fail( const int retval );
+
+const char * const Program_name = "Xlunzip";
+const char * const program_name = "xlunzip";
+const char * const program_year = "2018";
+const char * invocation_name = 0;
+
+const struct { const char * from; const char * to; } known_extensions[] = {
+  { ".lz",  ""     },
+  { ".tlz", ".tar" },
+  { 0,      0      } };
+
+char * output_filename = 0;
+int infd = -1;			/* needed by the fill function */
+int outfd = -1;
+bool delete_output_on_interrupt = false;
+
+
+static void show_help( void )
+  {
+  printf( "Xlunzip is a test tool for the lzip decompression code of my lzip patch\n"
+          "for linux. Xlunzip is similar to lunzip, but it uses the lzip_decompress\n"
+          "linux module as a backend. Xlunzip tests the module for stream,\n"
+          "buffer-to-buffer and mixed decompression modes, including in-place\n"
+          "decompression (using the same buffer for input and output). You can use\n"
+          "xlunzip to verify that the module produces correct results when\n"
+          "decompressing single member files, multimember files, or the\n"
+          "concatenation of two or more compressed files. Xlunzip can be used with\n"
+          "unzcrash to test the robustness of the module to the decompression of\n"
+          "corrupted data.\n"
+          "\nNote that the in-place decompression of concatenated files can't be\n"
+          "guaranteed to work because an arbitrarily low compression ratio of the\n"
+          "last part of the data can be achieved by appending enough empty\n"
+          "compressed members to a file.\n"
+          "\nUsage: %s [options] [files]\n", invocation_name );
+  printf( "\nOptions:\n"
+          "  -h, --help                 display this help and exit\n"
+          "  -V, --version              output version information and exit\n"
+          "  -c, --stdout               write to standard output, keep input files\n"
+          "  -d, --decompress           decompress (this is the default)\n"
+          "  -f, --force                overwrite existing output files\n"
+          "  -I, --in-place             decompress or test using only one buffer\n"
+          "  -k, --keep                 keep (don't delete) input files\n"
+          "  -o, --output=<file>        if reading standard input, write to <file>\n"
+          "  -q, --quiet                suppress all messages\n"
+          "  -t, --test                 test compressed file integrity\n"
+          "  -v, --verbose              be verbose (a 2nd -v gives more)\n"
+          "These options are ignored when --in-place is in effect:\n"
+          "      --insize[=<size>]      pre-allocate and fill inbuf [default 16 KiB]\n"
+          "      --outsize[=<size>]     pre-allocate outbuf [default 512 MiB]\n"
+          "      --nofill               do not pass a fill function; requires --insize\n"
+          "      --noflush              do not pass a flush function; requires --outsize\n"
+          "If no file names are given, or if a file is '-', xlunzip decompresses\n"
+          "from standard input to standard output.\n"
+          "Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,\n"
+          "Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...\n"
+          "\nExit status: 0 for a normal exit, 1 for environmental problems (file\n"
+          "not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or\n"
+          "invalid input file, 3 for an internal consistency error (eg, bug) which\n"
+          "caused xlunzip to panic.\n"
+          "\nReport bugs to lzip-bug@nongnu.org\n"
+          "Xlunzip home page: http://www.nongnu.org/lzip/xlunzip.html\n" );
+  }
+
+
+static void show_version( void )
+  {
+  printf( "%s %s\n", program_name, PROGVERSION );
+  printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
+  printf( "License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>\n"
+          "This is free software: you are free to change and redistribute it.\n"
+          "There is NO WARRANTY, to the extent permitted by law.\n" );
+  }
+
+
+/* assure at least a minimum size for buffer 'buf' */
+void * resize_buffer( void * buf, const unsigned min_size )
+  {
+  if( buf ) buf = realloc( buf, min_size );
+  else buf = malloc( min_size );
+  if( !buf )
+    {
+    show_error( "Not enough memory.", 0, false );
+    cleanup_and_fail( 1 );
+    }
+  return buf;
+  }
+
+
+void Pp_show_msg( struct Pretty_print * const pp, const char * const msg )
+  {
+  if( verbosity >= 0 )
+    {
+    if( pp->first_post )
+      {
+      pp->first_post = false;
+      fputs( pp->padded_name, stderr );
+      if( !msg ) fflush( stderr );
+      }
+    if( msg ) fprintf( stderr, "%s\n", msg );
+    }
+  }
+
+
+static unsigned long getnum( const char * const ptr,
+                             const unsigned long llimit,
+                             const unsigned long ulimit )
+  {
+  unsigned long result;
+  char * tail;
+  errno = 0;
+  result = strtoul( ptr, &tail, 0 );
+  if( tail == ptr )
+    {
+    show_error( "Bad or missing numerical argument.", 0, true );
+    exit( 1 );
+    }
+
+  if( !errno && tail[0] )
+    {
+    const unsigned factor = ( tail[1] == 'i' ) ? 1024 : 1000;
+    int exponent = 0;				/* 0 = bad multiplier */
+    int i;
+    switch( tail[0] )
+      {
+      case 'Y': exponent = 8; break;
+      case 'Z': exponent = 7; break;
+      case 'E': exponent = 6; break;
+      case 'P': exponent = 5; break;
+      case 'T': exponent = 4; break;
+      case 'G': exponent = 3; break;
+      case 'M': exponent = 2; break;
+      case 'K': if( factor == 1024 ) exponent = 1; break;
+      case 'k': if( factor == 1000 ) exponent = 1; break;
+      }
+    if( exponent <= 0 )
+      {
+      show_error( "Bad multiplier in numerical argument.", 0, true );
+      exit( 1 );
+      }
+    for( i = 0; i < exponent; ++i )
+      {
+      if( ulimit / factor >= result ) result *= factor;
+      else { errno = ERANGE; break; }
+      }
+    }
+  if( !errno && ( result < llimit || result > ulimit ) ) errno = ERANGE;
+  if( errno )
+    {
+    show_error( "Numerical argument out of limits.", 0, false );
+    exit( 1 );
+    }
+  return result;
+  }
+
+
+static int extension_index( const char * const name )
+  {
+  int eindex;
+  for( eindex = 0; known_extensions[eindex].from; ++eindex )
+    {
+    const char * const ext = known_extensions[eindex].from;
+    const unsigned name_len = strlen( name );
+    const unsigned ext_len = strlen( ext );
+    if( name_len > ext_len &&
+        strncmp( name + name_len - ext_len, ext, ext_len ) == 0 )
+      return eindex;
+    }
+  return -1;
+  }
+
+
+static void set_d_outname( const char * const name, const int eindex )
+  {
+  const unsigned name_len = strlen( name );
+  if( eindex >= 0 )
+    {
+    const char * const from = known_extensions[eindex].from;
+    const unsigned from_len = strlen( from );
+    if( name_len > from_len )
+      {
+      output_filename = resize_buffer( output_filename, name_len +
+                                       strlen( known_extensions[eindex].to ) + 1 );
+      strcpy( output_filename, name );
+      strcpy( output_filename + name_len - from_len, known_extensions[eindex].to );
+      return;
+      }
+    }
+  output_filename = resize_buffer( output_filename, name_len + 4 + 1 );
+  strcpy( output_filename, name );
+  strcat( output_filename, ".out" );
+  if( verbosity >= 1 )
+    fprintf( stderr, "%s: Can't guess original name for '%s' -- using '%s'\n",
+             program_name, name, output_filename );
+  }
+
+
+static int open_instream( const char * const name, struct stat * const in_statsp,
+                          const bool no_ofile )
+  {
+  int infd = open( name, O_RDONLY | O_BINARY );
+  if( infd < 0 )
+    show_file_error( name, "Can't open input file", errno );
+  else
+    {
+    const int i = fstat( infd, in_statsp );
+    const mode_t mode = in_statsp->st_mode;
+    const bool can_read = ( i == 0 &&
+                            ( S_ISBLK( mode ) || S_ISCHR( mode ) ||
+                              S_ISFIFO( mode ) || S_ISSOCK( mode ) ) );
+    if( i != 0 || ( !S_ISREG( mode ) && ( !can_read || !no_ofile ) ) )
+      {
+      if( verbosity >= 0 )
+        fprintf( stderr, "%s: Input file '%s' is not a regular file%s.\n",
+                 program_name, name,
+                 ( can_read && !no_ofile ) ?
+                 ",\n        and '--stdout' was not specified" : "" );
+      close( infd );
+      infd = -1;
+      }
+    }
+  return infd;
+  }
+
+
+static bool open_outstream( const bool force, const bool from_stdin )
+  {
+  const mode_t usr_rw = S_IRUSR | S_IWUSR;
+  const mode_t all_rw = usr_rw | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
+  const mode_t outfd_mode = from_stdin ? all_rw : usr_rw;
+  int flags = O_APPEND | O_CREAT | O_RDWR | O_BINARY;
+  if( force ) flags |= O_TRUNC; else flags |= O_EXCL;
+
+  outfd = open( output_filename, flags, outfd_mode );
+  if( outfd >= 0 ) delete_output_on_interrupt = true;
+  else if( verbosity >= 0 )
+    {
+    if( errno == EEXIST )
+      fprintf( stderr, "%s: Output file '%s' already exists, skipping.\n",
+               program_name, output_filename );
+    else
+      fprintf( stderr, "%s: Can't create output file '%s': %s\n",
+               program_name, output_filename, strerror( errno ) );
+    }
+  return ( outfd >= 0 );
+  }
+
+
+void cleanup_and_fail( const int retval )
+  {
+  if( delete_output_on_interrupt )
+    {
+    delete_output_on_interrupt = false;
+    if( verbosity >= 0 )
+      fprintf( stderr, "%s: Deleting output file '%s', if it exists.\n",
+               program_name, output_filename );
+    if( outfd >= 0 ) { close( outfd ); outfd = -1; }
+    if( remove( output_filename ) != 0 && errno != ENOENT )
+      show_error( "WARNING: deletion of output file (apparently) failed.", 0, false );
+    }
+  exit( retval );
+  }
+
+
+     /* Set permissions, owner and times. */
+static void close_and_set_permissions( const struct stat * const in_statsp )
+  {
+  bool warning = false;
+  if( in_statsp )
+    {
+    const mode_t mode = in_statsp->st_mode;
+    /* fchown will in many cases return with EPERM, which can be safely ignored. */
+    if( fchown( outfd, in_statsp->st_uid, in_statsp->st_gid ) == 0 )
+      { if( fchmod( outfd, mode ) != 0 ) warning = true; }
+    else
+      if( errno != EPERM ||
+          fchmod( outfd, mode & ~( S_ISUID | S_ISGID | S_ISVTX ) ) != 0 )
+        warning = true;
+    }
+  if( close( outfd ) != 0 )
+    {
+    show_error( "Error closing output file", errno, false );
+    cleanup_and_fail( 1 );
+    }
+  outfd = -1;
+  delete_output_on_interrupt = false;
+  if( in_statsp )
+    {
+    struct utimbuf t;
+    t.actime = in_statsp->st_atime;
+    t.modtime = in_statsp->st_mtime;
+    if( utime( output_filename, &t ) != 0 ) warning = true;
+    }
+  if( warning && verbosity >= 1 )
+    show_error( "Can't change output file attributes.", 0, false );
+  }
+
+
+int convert_retval( const int retval )
+  {
+  switch( retval )
+    {
+    case 0:                return 0;
+    case LZIP_OOM_INBUF:
+    case LZIP_OOM_OUTBUF:
+    case LZIP_WRITE_ERROR: return 1;
+    case LZIP_HEADER1_EOF:
+    case LZIP_HEADER2_EOF:
+    case LZIP_BAD_MAGIC1:
+    case LZIP_BAD_MAGIC2:
+    case LZIP_BAD_VERSION:
+    case LZIP_BAD_DICT_SIZE:
+    case LZIP_BAD_DATA:
+    case LZIP_DATA_EOF:
+    case LZIP_BAD_CRC:     return 2;
+    default:               return 3;
+    }
+  }
+
+
+static long fill( void * buf, unsigned long size )
+  {
+  unsigned long sz = 0;
+  errno = 0;
+  while( sz < size )
+    {
+    const int n = read( infd, (uint8_t *)buf + sz, min( 1UL << 20, size - sz ) );
+    if( n > 0 ) sz += n;
+    else if( n == 0 ) break;				/* EOF */
+    else if( errno != EINTR ) break;
+    errno = 0;
+    }
+  return sz;
+  }
+
+long flush( void * buf, unsigned long size )
+  {
+  unsigned long sz = ( outfd >= 0 ) ? 0 : size;
+  errno = 0;
+  while( sz < size )
+    {
+    const int n = write( outfd, (uint8_t *)buf + sz, min( 1UL << 20, size - sz ) );
+    if( n > 0 ) sz += n;
+    else if( n < 0 && errno != EINTR ) break;
+    errno = 0;
+    }
+  return sz;
+  }
+
+const char * global_name;
+static void error(char *x) { show_file_error( global_name, x, 0 ); }
+
+
+static int decompress( struct Pretty_print * const pp, const long cl_insize,
+                       const long cl_outsize, const bool nofill,
+                       const bool noflush, const bool testing )
+  {
+  long in_len = cl_insize;
+  uint8_t * const inbuf = (in_len > 0) ? malloc( in_len ) : 0;
+  long out_size = cl_outsize;
+  uint8_t * const outbuf = (out_size > 0) ? malloc( out_size ) : 0;
+  long in_pos, out_pos;
+  int retval;
+  if( ( in_len > 0 && !inbuf ) || ( out_size > 0 && !outbuf ) )
+    { show_error( "Not enough memory.", 0, false ); return 1; }
+
+  if( inbuf )
+    {
+    const long len = fill( inbuf, in_len );
+    if( len < in_len )
+      { if( errno ) { show_file_error( pp->name, "Read error", errno ); return 1; }
+        in_len = len; }
+    }
+  global_name = pp->name;
+  retval = convert_retval( __lunzip( inbuf, in_len, nofill ? 0 : fill,
+                                     noflush ? 0 : flush, outbuf, out_size,
+                                     &in_pos, &out_pos, error ) );
+  if( retval ) return retval;
+  if( outbuf && noflush )
+    {
+    const long len = flush( outbuf, out_pos );
+    if( len < out_pos )
+      { show_file_error( pp->name, "Write error", errno ); return 1; }
+    }
+  if( verbosity >= 1 ) Pp_show_msg( pp, 0 );
+  if( verbosity >= 2 )
+    {
+    if( out_pos <= 0 || in_pos <= 0 )
+      fputs( "no data compressed.  ", stderr );
+    else
+      fprintf( stderr, "%6.3f:1, %5.2f%% ratio, %5.2f%% saved.  ",
+               (double)out_pos / in_pos,
+               ( 100.0 * in_pos ) / out_pos,
+               100.0 - ( ( 100.0 * in_pos ) / out_pos ) );
+    if( verbosity >= 3 )
+      fprintf( stderr, "decompressed %9lu, compressed %8lu.  ",
+               out_pos, in_pos );
+    }
+  if( verbosity >= 1 )
+    fputs( testing ? "ok\n" : "done\n", stderr );
+  return 0;
+  }
+
+
+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 );
+  }
+
+
+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%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 );
+  }
+
+
+void show_file_error( const char * const filename, const char * const msg,
+                      const int errcode )
+  {
+  if( verbosity >= 0 )
+    fprintf( stderr, "%s: %s: %s%s%s\n", program_name, filename, msg,
+             ( errcode > 0 ) ? ": " : "",
+             ( errcode > 0 ) ? strerror( errcode ) : "" );
+  }
+
+
+void internal_error( const char * const msg )
+  {
+  if( verbosity >= 0 )
+    fprintf( stderr, "%s: internal error: %s\n", program_name, msg );
+  exit( 3 );
+  }
+
+
+int main( const int argc, const char * const argv[] )
+  {
+  const char * default_output_filename = "";
+  const char ** filenames = 0;
+  long cl_insize = 0;
+  long cl_outsize = 0;
+  int num_filenames = 0;
+  int argind = 0;
+  int failed_tests = 0;
+  int retval = 0;
+  int i;
+  bool filenames_given = false;
+  bool force = false;
+  bool in_place = false;
+  bool keep_input_files = false;
+  bool nofill = false;
+  bool noflush = false;
+  bool stdin_used = false;
+  bool testing = false;
+  bool to_stdout = false;
+  struct Pretty_print pp;
+
+  enum { opt_insize = 256, opt_outsize, opt_nofill, opt_noflush };
+  const struct ap_Option options[] =
+    {
+    { 'c', "stdout",          ap_no  },
+    { 'd', "decompress",      ap_no  },
+    { 'f', "force",           ap_no  },
+    { 'h', "help",            ap_no  },
+    { 'I', "in-place",        ap_no  },
+    { 'k', "keep",            ap_no  },
+    { 'n', "threads",         ap_yes },
+    { 'o', "output",          ap_yes },
+    { 'q', "quiet",           ap_no  },
+    { 't', "test",            ap_no  },
+    { 'v', "verbose",         ap_no  },
+    { 'V', "version",         ap_no  },
+    { opt_insize, "insize",   ap_maybe  },
+    { opt_outsize, "outsize", ap_maybe  },
+    { opt_nofill, "nofill",   ap_no  },
+    { opt_noflush, "noflush", ap_no  },
+    {  0 ,  0,                ap_no  } };
+
+  struct Arg_parser parser;
+  invocation_name = argv[0];
+
+  if( !ap_init( &parser, argc, argv, options, 0 ) )
+    { show_error( "Not enough memory.", 0, false ); return 1; }
+  if( ap_error( &parser ) )				/* bad option */
+    { show_error( ap_error( &parser ), 0, true ); return 1; }
+
+  for( ; argind < ap_arguments( &parser ); ++argind )
+    {
+    const int code = ap_code( &parser, argind );
+    const char * const arg = ap_argument( &parser, argind );
+    if( !code ) break;					/* no more options */
+    switch( code )
+      {
+      case 'c': to_stdout = true; break;
+      case 'd': testing = false; break;
+      case 'f': force = true; break;
+      case 'h': show_help(); return 0;
+      case 'I': in_place = true; break;
+      case 'k': keep_input_files = true; break;
+      case 'n': break;
+      case 'o': default_output_filename = arg; break;
+      case 'q': verbosity = -1; break;
+      case 't': testing = true; break;
+      case 'v': if( verbosity < 4 ) ++verbosity; break;
+      case 'V': show_version(); return 0;
+      case opt_insize:
+        cl_insize = arg[0] ? getnum( arg, 1, LONG_MAX ) : 16384; break;
+      case opt_outsize: cl_outsize = arg[0] ?
+        getnum( arg, min_dictionary_size, LONG_MAX ) : max_dictionary_size;
+        break;
+      case opt_nofill: nofill = true; break;
+      case opt_noflush: noflush = true; break;
+      default : internal_error( "uncaught option." );
+      }
+    } /* end process options */
+
+#if defined(__MSVCRT__) || defined(__OS2__)
+  setmode( STDIN_FILENO, O_BINARY );
+  setmode( STDOUT_FILENO, O_BINARY );
+#endif
+
+  num_filenames = max( 1, ap_arguments( &parser ) - argind );
+  filenames = resize_buffer( filenames, num_filenames * sizeof filenames[0] );
+  filenames[0] = "-";
+
+  for( i = 0; argind + i < ap_arguments( &parser ); ++i )
+    {
+    filenames[i] = ap_argument( &parser, argind + i );
+    if( strcmp( filenames[i], "-" ) != 0 ) filenames_given = true;
+    }
+
+  if( testing )
+    outfd = -1;
+
+  if( !to_stdout && !testing &&
+      ( filenames_given || default_output_filename[0] ) )
+    set_signals();
+
+  Pp_init( &pp, filenames, num_filenames );
+
+  output_filename = resize_buffer( output_filename, 1 );
+  for( i = 0; i < num_filenames; ++i )
+    {
+    const char * input_filename = "";
+    int tmp;
+    struct stat in_stats;
+    const struct stat * in_statsp;
+    output_filename[0] = 0;
+
+    if( !filenames[i][0] || strcmp( filenames[i], "-" ) == 0 )
+      {
+      if( stdin_used ) continue; else stdin_used = true;
+      infd = STDIN_FILENO;
+      if( !testing )
+        {
+        if( to_stdout || !default_output_filename[0] )
+          outfd = STDOUT_FILENO;
+        else
+          {
+          output_filename = resize_buffer( output_filename,
+                              strlen( default_output_filename ) + 1 );
+          strcpy( output_filename, default_output_filename );
+          if( !open_outstream( force, true ) )
+            {
+            if( retval < 1 ) retval = 1;
+            close( infd ); infd = -1;
+            continue;
+            }
+          }
+        }
+      }
+    else
+      {
+      input_filename = filenames[i];
+      infd = open_instream( input_filename, &in_stats, to_stdout || testing );
+      if( infd < 0 ) { if( retval < 1 ) retval = 1; continue; }
+      if( !testing )
+        {
+        if( to_stdout ) outfd = STDOUT_FILENO;
+        else
+          {
+          set_d_outname( input_filename, extension_index( input_filename ) );
+          if( !open_outstream( force, false ) )
+            {
+            if( retval < 1 ) retval = 1;
+            close( infd ); infd = -1;
+            continue;
+            }
+          }
+        }
+      }
+
+    Pp_set_name( &pp, input_filename );
+    if( isatty( infd ) )
+      {
+      show_file_error( pp.name,
+                       "I won't read compressed data from a terminal.", 0 );
+      if( retval < 1 ) retval = 1;
+      if( testing ) { close( infd ); infd = -1; continue; }
+      cleanup_and_fail( retval );
+      }
+
+    in_statsp = input_filename[0] ? &in_stats : 0;
+    if( in_place )
+      tmp = decompress_in_place( infd, &pp, testing );
+    else
+      tmp = decompress( &pp, cl_insize, cl_outsize, nofill, noflush, testing );
+    if( tmp > retval ) retval = tmp;
+    if( tmp )
+      { if( !testing ) cleanup_and_fail( retval );
+        else ++failed_tests; }
+
+    if( delete_output_on_interrupt )
+      close_and_set_permissions( in_statsp );
+    if( input_filename[0] )
+      {
+      close( infd ); infd = -1;
+      if( !keep_input_files && !to_stdout && !testing )
+        remove( input_filename );
+      }
+    }
+  if( outfd >= 0 && close( outfd ) != 0 )
+    {
+    show_error( "Error closing stdout", errno, false );
+    if( retval < 1 ) retval = 1;
+    }
+  if( failed_tests > 0 && verbosity >= 1 && num_filenames > 1 )
+    fprintf( stderr, "%s: warning: %d %s failed the test.\n",
+             program_name, failed_tests,
+             ( failed_tests == 1 ) ? "file" : "files" );
+  free( output_filename );
+  free( filenames );
+  ap_free( &parser );
+  return retval;
+  }