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-rwxr-xr-xtestsuite/check.sh34
-rw-r--r--testsuite/unzcrash.cc335
2 files changed, 323 insertions, 46 deletions
diff --git a/testsuite/check.sh b/testsuite/check.sh
index 710f0b8..82bc47d 100755
--- a/testsuite/check.sh
+++ b/testsuite/check.sh
@@ -1,6 +1,6 @@
#! /bin/sh
# check script for Lzip - Data compressor based on the LZMA algorithm
-# Copyright (C) 2008, 2009, 2010 Antonio Diaz Diaz.
+# Copyright (C) 2008, 2009, 2010, 2011 Antonio Diaz Diaz.
#
# This script is free software: you have unlimited permission
# to copy, distribute and modify it.
@@ -48,6 +48,13 @@ printf .
cmp in copy || fail=1
printf .
+"${LZIP}" -cf "${testdir}"/test_v1.lz > out 2>/dev/null
+if [ $? != 1 ] ; then fail=1 ; printf - ; else printf . ; fi
+"${LZIP}" -cF "${testdir}"/test_v1.lz > out || fail=1
+"${LZIP}" -cd out | "${LZIP}" -d > copy || fail=1
+cmp in copy || fail=1
+printf .
+
for i in s4Ki 0 1 2 3 4 5 6 7 8 9 ; do
"${LZIP}" -k -$i in || fail=1
mv -f in.lz copy.lz || fail=1
@@ -79,6 +86,11 @@ for i in s4Ki 0 1 2 3 4 5 6 7 8 9 ; do
printf .
done
+"${LZIP}" -$i < in > anyothername || fail=1
+"${LZIP}" -d anyothername || fail=1
+cmp in anyothername.out || fail=1
+printf .
+
# Description of test files for lziprecover:
# test_bad1.lz: byte at offset 67 changed from 0xCC to 0x33
# test_bad2.lz: [ 34- 66) --> copy of bytes [ 68- 100)
@@ -98,47 +110,47 @@ for i in 1 2 3 ; do
done
"${LZIP}" -0kf -$i in || fail=1
-"${LZIPRECOVER}" -R in.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -R in.lz || fail=1
printf .
-"${LZIPRECOVER}" -R "${testdir}"/test_v1.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -R "${testdir}"/test_v1.lz || fail=1
printf .
-"${LZIPRECOVER}" -R -o copy.lz "${testdir}"/test_bad1.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -R -o copy.lz "${testdir}"/test_bad1.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
-"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad1.lz "${testdir}"/test_bad2.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad1.lz "${testdir}"/test_bad2.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
-"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad2.lz "${testdir}"/test_bad1.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad2.lz "${testdir}"/test_bad1.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
for i in 1 2 ; do
for j in 3 4 5 ; do
- "${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad${i}.lz "${testdir}"/test_bad${j}.lz > /dev/null || fail=1
+ "${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad${i}.lz "${testdir}"/test_bad${j}.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
- "${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad${j}.lz "${testdir}"/test_bad${i}.lz > /dev/null || fail=1
+ "${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad${j}.lz "${testdir}"/test_bad${i}.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
done
done
-"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad3.lz "${testdir}"/test_bad4.lz "${testdir}"/test_bad5.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad3.lz "${testdir}"/test_bad4.lz "${testdir}"/test_bad5.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
-"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad4.lz "${testdir}"/test_bad5.lz "${testdir}"/test_bad3.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad4.lz "${testdir}"/test_bad5.lz "${testdir}"/test_bad3.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
-"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad5.lz "${testdir}"/test_bad3.lz "${testdir}"/test_bad4.lz > /dev/null || fail=1
+"${LZIPRECOVER}" -m -o copy.lz "${testdir}"/test_bad5.lz "${testdir}"/test_bad3.lz "${testdir}"/test_bad4.lz || fail=1
"${LZIP}" -df copy.lz || fail=1
cmp in copy || fail=1
printf .
diff --git a/testsuite/unzcrash.cc b/testsuite/unzcrash.cc
index 7d10b28..5fac783 100644
--- a/testsuite/unzcrash.cc
+++ b/testsuite/unzcrash.cc
@@ -1,84 +1,349 @@
/* Unzcrash - A test program written to test robustness to
decompression of corrupted data.
Inspired by unzcrash.c from Julian Seward's bzip2.
- Copyright (C) 2008, 2009, 2010 Antonio Diaz Diaz.
+ Copyright (C) 2008, 2009, 2010, 2011 Antonio Diaz Diaz.
- This program is free software: you have unlimited permission
- to copy, distribute and modify it.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Usage is:
- unzcrash "lzip -tv" filename.lz
+ 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.
- This program reads the specified file and then repeatedly
- decompresses it, increasing 256 times each byte of the compressed
- data, so as to test all possible one-byte errors. This should not
- cause any invalid memory accesses. If it does, please, report it as
- a bug.
-
- Compile this file with the command:
- g++ -Wall -W -O2 -o unzcrash testsuite/unzcrash.cc
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <cerrno>
+#include <climits>
#include <csignal>
#include <cstdio>
#include <cstdlib>
+#include <cstring>
+#include <string>
+#include <vector>
#include <stdint.h>
#include <unistd.h>
+#include "../arg_parser.h"
+
+#if CHAR_BIT != 8
+#error "Environments where CHAR_BIT != 8 are not supported."
+#endif
+
+#ifndef LLONG_MAX
+#define LLONG_MAX 0x7FFFFFFFFFFFFFFFLL
+#endif
+#ifndef LLONG_MIN
+#define LLONG_MIN (-LLONG_MAX - 1LL)
+#endif
+#ifndef ULLONG_MAX
+#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
+#endif
+
+
+namespace {
+
+const char * const Program_name = "Unzcrash";
+const char * const program_name = "unzcrash";
+const char * const program_year = "2011";
+const char * invocation_name = 0;
+
+int verbosity = 0;
+
+
+void show_help() throw()
+ {
+ std::printf( "%s - A test program written to test robustness to\n", Program_name );
+ std::printf( "decompression of corrupted data.\n" );
+ std::printf( "\nUsage: %s [options] \"lzip -tv\" filename.lz\n", invocation_name );
+ std::printf( "\nThis program reads the specified file and then repeatedly decompresses\n" );
+ std::printf( "it, increasing 256 times each byte of the compressed data, so as to test\n" );
+ std::printf( "all possible one-byte errors. This should not cause any invalid memory\n" );
+ std::printf( "accesses. If it does, please, report it as a bug.\n" );
+ std::printf( "\nOptions:\n" );
+ std::printf( " -h, --help display this help and exit\n" );
+ std::printf( " -V, --version output version information and exit\n" );
+ std::printf( " -b, --bits=<n>[,n] test <n>-bit errors instead of full byte\n" );
+ std::printf( " -p, --position=<n> first byte position to test\n" );
+ std::printf( " -q, --quiet suppress all messages\n" );
+ std::printf( " -s, --size=<n> number of byte positions to test\n" );
+ std::printf( " -v, --verbose be verbose (a 2nd -v gives more)\n" );
+ std::printf( "\nReport bugs to lzip-bug@nongnu.org\n" );
+ std::printf( "Lzip home page: http://www.nongnu.org/lzip/lzip.html\n" );
+ }
+
+
+void show_version() throw()
+ {
+ std::printf( "%s %s\n", Program_name, PROGVERSION );
+ std::printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
+ std::printf( "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n" );
+ std::printf( "This is free software: you are free to change and redistribute it.\n" );
+ std::printf( "There is NO WARRANTY, to the extent permitted by law.\n" );
+ }
+
+
+void show_error( const char * const msg, const int errcode = 0,
+ const bool help = false ) throw()
+ {
+ if( verbosity >= 0 )
+ {
+ if( msg && msg[0] )
+ {
+ std::fprintf( stderr, "%s: %s", program_name, msg );
+ if( errcode > 0 )
+ std::fprintf( stderr, ": %s", std::strerror( errcode ) );
+ std::fprintf( stderr, "\n" );
+ }
+ if( help && invocation_name && invocation_name[0] )
+ std::fprintf( stderr, "Try `%s --help' for more information.\n",
+ invocation_name );
+ }
+ }
+
+
+void internal_error( const char * const msg )
+ {
+ if( verbosity >= 0 )
+ std::fprintf( stderr, "%s: internal error: %s.\n", program_name, msg );
+ std::exit( 3 );
+ }
+
+
+long long getnum( const char * const ptr,
+ const long long llimit = LLONG_MIN + 1,
+ const long long ulimit = LLONG_MAX ) throw()
+ {
+ errno = 0;
+ char *tail;
+ long long result = strtoll( ptr, &tail, 0 );
+ if( tail == ptr )
+ {
+ show_error( "Bad or missing numerical argument.", 0, true );
+ std::exit( 1 );
+ }
+
+ if( !errno && tail[0] )
+ {
+ int factor = ( tail[1] == 'i' ) ? 1024 : 1000;
+ int exponent = 0;
+ bool bad_multiplier = false;
+ switch( tail[0] )
+ {
+ case ' ': break;
+ 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; else bad_multiplier = true;
+ break;
+ case 'k': if( factor == 1000 ) exponent = 1; else bad_multiplier = true;
+ break;
+ default : bad_multiplier = true;
+ }
+ if( bad_multiplier )
+ {
+ show_error( "Bad multiplier in numerical argument.", 0, true );
+ std::exit( 1 );
+ }
+ for( int i = 0; i < exponent; ++i )
+ {
+ if( LLONG_MAX / factor >= llabs( result ) ) result *= factor;
+ else { errno = ERANGE; break; }
+ }
+ }
+ if( !errno && ( result < llimit || result > ulimit ) ) errno = ERANGE;
+ if( errno )
+ {
+ show_error( "Numerical argument out of limits." );
+ std::exit( 1 );
+ }
+ return result;
+ }
+
+
+class Bitset8 // 8 value bitset (1..8)
+ {
+ bool data[8];
+ static bool valid_digit( const unsigned char ch ) throw()
+ { return ( ch >= '1' && ch <= '8' ); }
+
+public:
+ Bitset8() throw() { for( int i = 0; i < 8; ++i ) data[i] = true; }
+
+ bool includes( const int i ) const throw()
+ { return ( i >= 1 && i <= 8 && data[i-1] ); }
+
+ // Recognized formats: 1 1,2,3 1-4 1,3-5,8
+ bool parse( const char * p ) throw()
+ {
+ for( int i = 0; i < 8; ++i ) data[i] = false;
+ while( true )
+ {
+ const unsigned char ch1 = *p++;
+ if( !valid_digit( ch1 ) ) break;
+ if( *p != '-' ) data[ch1-'1'] = true;
+ else
+ {
+ ++p;
+ if( !valid_digit( *p ) || ch1 > *p ) break;
+ for( int c = ch1; c <= *p; ++c ) data[c-'1'] = true;
+ ++p;
+ }
+ if( *p == 0 ) return true;
+ if( *p == ',' ) ++p; else break;
+ }
+ show_error( "Invalid value or range." );
+ return false;
+ }
+
+ // number of n-bit errors per byte (n=0..8): 1 8 28 56 70 56 28 8 1
+ void print() const throw()
+ {
+ std::fflush( stderr );
+ int c = 0;
+ for( int i = 0; i < 8; ++i ) if( data[i] ) ++c;
+ if( c == 8 ) std::printf( "Testing full byte.\n" );
+ else if( c == 0 ) std::printf( "Nothing to test.\n" );
+ else
+ {
+ std::printf( "Testing " );
+ for( int i = 0; i < 8; ++i )
+ if( data[i] )
+ {
+ std::printf( "%d", i + 1 );
+ if( --c ) std::printf( "," );
+ }
+ std::printf( " bit errors.\n" );
+ }
+ std::fflush( stdout );
+ }
+ };
+
+
+int differing_bits( const uint8_t byte1, const uint8_t byte2 )
+ {
+ int count = 0;
+ uint8_t dif = byte1 ^ byte2;
+ while( dif )
+ { count += ( dif & 1 ); dif >>= 1; }
+ return count;
+ }
+
+} // end namespace
+
int main( const int argc, const char * const argv[] )
{
- if( argc != 3 )
+ enum { buffer_size = 3 << 20 };
+ Bitset8 bits; // if Bitset8::parse not called test full byte
+ int pos = 0;
+ int max_size = buffer_size;
+ invocation_name = argv[0];
+
+ const Arg_parser::Option options[] =
{
- std::fprintf( stderr, "Usage: unzcrash \"lzip -tv\" filename.lz\n" );
+ { 'h', "help", Arg_parser::no },
+ { 'b', "bits", Arg_parser::yes },
+ { 'p', "position", Arg_parser::yes },
+ { 'q', "quiet", Arg_parser::no },
+ { 's', "size", Arg_parser::yes },
+ { 'v', "verbose", Arg_parser::no },
+ { 'V', "version", Arg_parser::no },
+ { 0 , 0, Arg_parser::no } };
+
+ const Arg_parser parser( argc, argv, options );
+ if( parser.error().size() ) // bad option
+ { show_error( parser.error().c_str(), 0, true ); return 1; }
+
+ int argind = 0;
+ for( ; argind < parser.arguments(); ++argind )
+ {
+ const int code = parser.code( argind );
+ if( !code ) break; // no more options
+ const char * const arg = parser.argument( argind ).c_str();
+ switch( code )
+ {
+ case 'h': show_help(); return 0;
+ case 'b': if( !bits.parse( arg ) ) return 1; break;
+ case 'p': pos = getnum( arg, 0, buffer_size - 1 ); break;
+ case 'q': verbosity = -1; break;
+ case 's': max_size = getnum( arg, 1, buffer_size ); break;
+ case 'v': if( verbosity < 4 ) ++verbosity; break;
+ case 'V': show_version(); return 0;
+ default : internal_error( "uncaught option" );
+ }
+ } // end process options
+
+ if( argind + 2 != parser.arguments() )
+ {
+ if( verbosity >= 0 )
+ std::fprintf( stderr, "Usage: %s \"lzip -tv\" filename.lz\n",
+ invocation_name );
return 1;
}
- FILE *f = std::fopen( argv[2], "rb" );
+ FILE *f = std::fopen( parser.argument( argind + 1 ).c_str(), "rb" );
if( !f )
{
- std::fprintf( stderr, "Can't open file `%s' for reading\n", argv[2] );
+ if( verbosity >= 0 )
+ std::fprintf( stderr, "Can't open file `%s' for reading\n",
+ parser.argument( argind + 1 ).c_str() );
return 1;
}
- const int buffer_size = 1 << 21;
uint8_t * const buffer = new uint8_t[buffer_size];
const int size = std::fread( buffer, 1, buffer_size, f );
if( size >= buffer_size )
{
- std::fprintf( stderr, "input file `%s' too big.\n", argv[2] );
+ if( verbosity >= 0 )
+ std::fprintf( stderr, "input file `%s' is too big.\n",
+ parser.argument( argind + 1 ).c_str() );
return 1;
}
std::fclose( f );
- f = popen( argv[1], "w" );
+ f = popen( parser.argument( argind ).c_str(), "w" );
if( !f )
- {
- std::fprintf( stderr, "incorrect parameters or too many files.\n" );
- return 1;
- }
+ { show_error( "Can't open pipe", errno ); return 1; }
const int wr = std::fwrite( buffer, 1, size, f );
if( wr != size || pclose( f ) != 0 )
{
- std::fprintf( stderr, "Could not run `%s' or other error.\n", argv[1] );
+ if( verbosity >= 0 )
+ std::fprintf( stderr, "Could not run `%s' : %s.\n",
+ parser.argument( argind ).c_str(), std::strerror( errno ) );
return 1;
}
std::signal( SIGPIPE, SIG_IGN );
+ if( verbosity >= 1 ) bits.print();
- for( int byte = 0; byte < size; ++byte )
+ const int end = ( ( pos + max_size < size ) ? pos + max_size : size );
+ for( int i = pos; i < end; ++i )
{
- std::fprintf( stderr, "byte %d\n", byte );
- for( int i = 0; i < 255; ++i )
+ if( verbosity >= 0 )
+ std::fprintf( stderr, "byte %d\n", i );
+ const uint8_t byte = buffer[i];
+ for( int j = 0; j < 255; ++j )
{
- ++buffer[byte];
- f = popen( argv[1], "w" );
- if( !f )
- { std::fprintf( stderr, "Can't open pipe.\n" ); return 1; }
- std::fwrite( buffer, 1, size, f );
- pclose( f );
+ ++buffer[i];
+ if( bits.includes( differing_bits( byte, buffer[i] ) ) )
+ {
+ f = popen( parser.argument( argind ).c_str(), "w" );
+ if( !f )
+ { show_error( "Can't open pipe", errno ); return 1; }
+ std::fwrite( buffer, 1, size, f );
+ pclose( f );
+ }
}
- ++buffer[byte];
+ buffer[i] = byte;
}
delete[] buffer;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 15:15:53 +0000