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-rw-r--r--main.cc389
1 files changed, 221 insertions, 168 deletions
diff --git a/main.cc b/main.cc
index 631c6f4..402e3b5 100644
--- a/main.cc
+++ b/main.cc
@@ -1,24 +1,24 @@
-/* Tarlz - Archiver with multimember lzip compression
- Copyright (C) 2013-2019 Antonio Diaz Diaz.
+/* Tarlz - Archiver with multimember lzip compression
+ Copyright (C) 2013-2020 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 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.
+ 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/>.
+ 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 tarlz to panic.
+ Exit status: 0 for a normal exit, 1 for environmental problems (file not
+ found, files differ, 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 tarlz to panic.
*/
#define _FILE_OFFSET_BITS 64
@@ -29,6 +29,7 @@
#include <cstdio>
#include <cstdlib>
#include <cstring>
+#include <ctime>
#include <string>
#include <vector>
#include <fcntl.h>
@@ -59,9 +60,8 @@ int verbosity = 0;
namespace {
const char * const program_name = "tarlz";
-const char * const program_year = "2019";
+const char * const program_year = "2020";
const char * invocation_name = program_name; // default value
-bool dereference = false;
void show_help( const long num_online )
@@ -86,47 +86,49 @@ void show_help( const long num_online )
"can be used to recover some of the damaged members.\n"
"\nUsage: %s [options] [files]\n", invocation_name );
std::printf( "\nOptions:\n"
- " --help display this help and exit\n"
- " -V, --version output version information and exit\n"
- " -A, --concatenate append archives to the end of an archive\n"
- " -B, --data-size=<bytes> set target size of input data blocks [2x8=16 MiB]\n"
- " -c, --create create a new archive\n"
- " -C, --directory=<dir> change to directory <dir>\n"
- " -d, --diff find differences between archive and file system\n"
- " --ignore-ids ignore differences in owner and group IDs\n"
- " --delete delete files/directories from an archive\n"
- " --exclude=<pattern> exclude files matching a shell pattern\n"
- " -f, --file=<archive> use archive file <archive>\n"
- " -h, --dereference follow symlinks; archive the files they point to\n"
- " -n, --threads=<n> set number of (de)compression threads [%ld]\n"
- " -q, --quiet suppress all messages\n"
- " -r, --append append files to the end of an archive\n"
- " -t, --list list the contents of an archive\n"
- " -v, --verbose verbosely list files processed\n"
- " -x, --extract extract files/directories from an archive\n"
- " -0 .. -9 set compression level [default 6]\n"
- " --uncompressed don't compress the archive created\n"
- " --asolid create solidly compressed appendable archive\n"
- " --bsolid create per block compressed archive (default)\n"
- " --dsolid create per directory compressed archive\n"
- " --no-solid create per file compressed archive\n"
- " --solid create solidly compressed archive\n"
- " --anonymous equivalent to '--owner=root --group=root'\n"
- " --owner=<owner> use <owner> name/ID for files added\n"
- " --group=<group> use <group> name/ID for files added\n"
- " --keep-damaged don't delete partially extracted files\n"
- " --missing-crc exit with error status if missing extended CRC\n"
- " --out-slots=<n> number of 1 MiB output packets buffered [64]\n"
-/* " --permissive allow repeated extended headers and records\n"*/,
+ " --help display this help and exit\n"
+ " -V, --version output version information and exit\n"
+ " -A, --concatenate append archives to the end of an archive\n"
+ " -B, --data-size=<bytes> set target size of input data blocks [2x8=16 MiB]\n"
+ " -c, --create create a new archive\n"
+ " -C, --directory=<dir> change to directory <dir>\n"
+ " -d, --diff find differences between archive and file system\n"
+ " --ignore-ids ignore differences in owner and group IDs\n"
+ " --delete delete files/directories from an archive\n"
+ " --exclude=<pattern> exclude files matching a shell pattern\n"
+ " -f, --file=<archive> use archive file <archive>\n"
+ " -h, --dereference follow symlinks; archive the files they point to\n"
+ " --mtime=<date> use <date> as mtime for files added to archive\n"
+ " -n, --threads=<n> set number of (de)compression threads [%ld]\n"
+ " -p, --preserve-permissions don't subtract the umask on extraction\n"
+ " -q, --quiet suppress all messages\n"
+ " -r, --append append files to the end of an archive\n"
+ " -t, --list list the contents of an archive\n"
+ " -v, --verbose verbosely list files processed\n"
+ " -x, --extract extract files/directories from an archive\n"
+ " -0 .. -9 set compression level [default 6]\n"
+ " --uncompressed don't compress the archive created\n"
+ " --asolid create solidly compressed appendable archive\n"
+ " --bsolid create per block compressed archive (default)\n"
+ " --dsolid create per directory compressed archive\n"
+ " --no-solid create per file compressed archive\n"
+ " --solid create solidly compressed archive\n"
+ " --anonymous equivalent to '--owner=root --group=root'\n"
+ " --owner=<owner> use <owner> name/ID for files added to archive\n"
+ " --group=<group> use <group> name/ID for files added to archive\n"
+ " --keep-damaged don't delete partially extracted files\n"
+ " --missing-crc exit with error status if missing extended CRC\n"
+ " --out-slots=<n> number of 1 MiB output packets buffered [64]\n"
+/* " --permissive allow repeated extended headers and records\n"*/,
num_online );
if( verbosity >= 1 )
{
- std::printf( " --debug=<level> (0-1) print debug statistics to stderr\n" );
+ std::printf( " --debug=<level> (0-1) print debug statistics to stderr\n" );
}
- std::printf( "\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 tarlz to panic.\n"
+ std::printf( "\nExit status: 0 for a normal exit, 1 for environmental problems (file not\n"
+ "found, files differ, invalid flags, I/O errors, etc), 2 to indicate a\n"
+ "corrupt or invalid input file, 3 for an internal consistency error (eg, bug)\n"
+ "which caused tarlz to panic.\n"
"\nReport bugs to lzip-bug@nongnu.org\n"
"Tarlz home page: http://www.nongnu.org/lzip/tarlz.html\n" );
}
@@ -193,6 +195,17 @@ unsigned long long getnum( const char * const ptr,
}
+void set_archive_name( std::string & archive_name, const std::string & new_name )
+ {
+ static bool first_call = true;
+
+ if( first_call ) { if( new_name != "-" ) archive_name = new_name;
+ first_call = false; return; }
+ show_error( "Only one archive can be specified.", 0, true );
+ std::exit( 1 );
+ }
+
+
void set_mode( Program_mode & program_mode, const Program_mode new_mode )
{
if( program_mode != m_none && program_mode != new_mode )
@@ -204,28 +217,58 @@ void set_mode( Program_mode & program_mode, const Program_mode new_mode )
}
-void set_owner( const char * const arg )
+void set_mtime( long long & mtime, const char * arg )
+ {
+ if( *arg == '@' )
+ { mtime = getnum( arg + 1, 0, ( 1ULL << 33 ) - 1 ); return; }
+ else if( *arg == '.' || *arg == '/' )
+ {
+ struct stat st;
+ if( stat( arg, &st ) == 0 ) { mtime = st.st_mtime; return; }
+ show_file_error( arg, "Can't stat", errno ); std::exit( 1 );
+ }
+ else // format 'YYYY-MM-DD HH:MM:SS'
+ {
+ unsigned y, mo, d, h, m, s;
+ const int n = std::sscanf( arg, "%u-%u-%u %u:%u:%u",
+ &y, &mo, &d, &h, &m, &s );
+ if( n == 6 && y >= 1970 && mo >= 1 )
+ {
+ struct tm t;
+ t.tm_year = y - 1900; t.tm_mon = mo - 1; t.tm_mday = d;
+ t.tm_hour = h; t.tm_min = m; t.tm_sec = s; t.tm_isdst = -1;
+ mtime = std::mktime( &t ); if( mtime >= 0 ) return;
+ }
+ }
+ show_error( "Invalid mtime.", 0, true ); std::exit( 1 );
+ }
+
+
+void set_owner( int & owner, const char * const arg )
{
const struct passwd * const pw = getpwnam( arg );
- if( pw ) cl_owner = pw->pw_uid;
+ if( pw ) owner = pw->pw_uid;
else if( std::isdigit( (unsigned char)arg[0] ) )
- cl_owner = getnum( arg, 0, INT_MAX );
+ owner = getnum( arg, 0, INT_MAX );
+ else if( std::strcmp( arg, "root" ) == 0 ) owner = 0;
else { show_file_error( arg, "Invalid owner" ); std::exit( 1 ); }
}
-void set_group( const char * const arg )
+void set_group( int & group, const char * const arg )
{
const struct group * const gr = getgrnam( arg );
- if( gr ) cl_group = gr->gr_gid;
+ if( gr ) group = gr->gr_gid;
else if( std::isdigit( (unsigned char)arg[0] ) )
- cl_group = getnum( arg, 0, INT_MAX );
+ group = getnum( arg, 0, INT_MAX );
+ else if( std::strcmp( arg, "root" ) == 0 ) group = 0;
else { show_file_error( arg, "Invalid group" ); std::exit( 1 ); }
}
} // end namespace
-int hstat( const char * const filename, struct stat * const st )
+int hstat( const char * const filename, struct stat * const st,
+ const bool dereference )
{ return dereference ? stat( filename, st ) : lstat( filename, st ); }
@@ -251,10 +294,10 @@ int open_outstream( const std::string & name, const bool create )
}
-// This can be called from any thread, main thread or sub-threads alike,
-// since they all call common helper functions that call cleanup_and_fail()
-// in case of an error.
-//
+/* This can be called from any thread, main thread or sub-threads alike,
+ since they all call common helper functions that call cleanup_and_fail()
+ in case of an error.
+*/
void cleanup_and_fail( const int retval )
{
// calling 'exit' more than once results in undefined behavior
@@ -278,10 +321,21 @@ void show_error( const char * const msg, const int errcode, const bool help )
}
+void format_file_error( std::string & estr, const char * const filename,
+ const char * const msg, const int errcode )
+ {
+ if( verbosity < 0 ) return;
+ estr += program_name; estr += ": "; estr += filename; estr += ": ";
+ estr += msg;
+ if( errcode > 0 ) { estr += ": "; estr += std::strerror( errcode ); }
+ estr += '\n';
+ }
+
+
void show_file_error( const char * const filename, const char * const msg,
const int errcode )
{
- if( verbosity >= 0 )
+ if( verbosity >= 0 && msg && msg[0] )
std::fprintf( stderr, "%s: %s: %s%s%s\n", program_name, filename, msg,
( errcode > 0 ) ? ": " : "",
( errcode > 0 ) ? std::strerror( errcode ) : "" );
@@ -298,128 +352,131 @@ void internal_error( const char * const msg )
int main( const int argc, const char * const argv[] )
{
- std::string archive_name;
- int debug_level = 0;
- int level = 6; // compression level, < 0 means uncompressed
- int num_workers = -1; // start this many worker threads
- int out_slots = 64;
- Program_mode program_mode = m_none;
- bool ignore_ids = false;
- bool keep_damaged = false;
- bool missing_crc = false;
- bool permissive = false;
if( argc > 0 ) invocation_name = argv[0];
- if( LZ_version()[0] < '1' )
- { show_error( "Bad library version. At least lzlib 1.0 is required." );
+#if !defined LZ_API_VERSION || LZ_API_VERSION < 1 // compile-time test
+#error "lzlib 1.8 or newer needed."
+#elif LZ_API_VERSION >= 2
+ if( LZ_api_version() < 1 ) // runtime test
+ { show_error( "Wrong library version. At least lzlib 1.8 is required." );
return 1; }
+#endif
enum { opt_ano = 256, opt_aso, opt_bso, opt_crc, opt_dbg, opt_del, opt_dso,
- opt_exc, opt_grp, opt_hlp, opt_id, opt_kd, opt_nso, opt_out, opt_own,
- opt_per, opt_sol, opt_un };
+ opt_exc, opt_grp, opt_hlp, opt_id, opt_kd, opt_mti, opt_nso, opt_out,
+ opt_own, opt_per, opt_sol, opt_un };
const Arg_parser::Option options[] =
{
- { '0', 0, Arg_parser::no },
- { '1', 0, Arg_parser::no },
- { '2', 0, Arg_parser::no },
- { '3', 0, Arg_parser::no },
- { '4', 0, Arg_parser::no },
- { '5', 0, Arg_parser::no },
- { '6', 0, Arg_parser::no },
- { '7', 0, Arg_parser::no },
- { '8', 0, Arg_parser::no },
- { '9', 0, Arg_parser::no },
- { 'A', "concatenate", Arg_parser::no },
- { 'B', "data-size", Arg_parser::yes },
- { 'c', "create", Arg_parser::no },
- { 'C', "directory", Arg_parser::yes },
- { 'd', "diff", Arg_parser::no },
- { 'f', "file", Arg_parser::yes },
- { 'h', "dereference", Arg_parser::no },
- { 'H', "format", Arg_parser::yes },
- { 'n', "threads", Arg_parser::yes },
- { 'q', "quiet", Arg_parser::no },
- { 'r', "append", Arg_parser::no },
- { 't', "list", Arg_parser::no },
- { 'v', "verbose", Arg_parser::no },
- { 'V', "version", Arg_parser::no },
- { 'x', "extract", Arg_parser::no },
- { opt_ano, "anonymous", Arg_parser::no },
- { opt_aso, "asolid", Arg_parser::no },
- { opt_bso, "bsolid", Arg_parser::no },
- { opt_dbg, "debug", Arg_parser::yes },
- { opt_del, "delete", Arg_parser::no },
- { opt_dso, "dsolid", Arg_parser::no },
- { opt_exc, "exclude", Arg_parser::yes },
- { opt_grp, "group", Arg_parser::yes },
- { opt_hlp, "help", Arg_parser::no },
- { opt_id, "ignore-ids", Arg_parser::no },
- { opt_kd, "keep-damaged", Arg_parser::no },
- { opt_crc, "missing-crc", Arg_parser::no },
- { opt_nso, "no-solid", Arg_parser::no },
- { opt_out, "out-slots", Arg_parser::yes },
- { opt_own, "owner", Arg_parser::yes },
- { opt_per, "permissive", Arg_parser::no },
- { opt_sol, "solid", Arg_parser::no },
- { opt_un, "uncompressed", Arg_parser::no },
- { 0 , 0, Arg_parser::no } };
-
- const Arg_parser parser( argc, argv, options, true );
+ { '0', 0, Arg_parser::no },
+ { '1', 0, Arg_parser::no },
+ { '2', 0, Arg_parser::no },
+ { '3', 0, Arg_parser::no },
+ { '4', 0, Arg_parser::no },
+ { '5', 0, Arg_parser::no },
+ { '6', 0, Arg_parser::no },
+ { '7', 0, Arg_parser::no },
+ { '8', 0, Arg_parser::no },
+ { '9', 0, Arg_parser::no },
+ { 'A', "concatenate", Arg_parser::no },
+ { 'B', "data-size", Arg_parser::yes },
+ { 'c', "create", Arg_parser::no },
+ { 'C', "directory", Arg_parser::yes },
+ { 'd', "diff", Arg_parser::no },
+ { 'f', "file", Arg_parser::yes },
+ { 'h', "dereference", Arg_parser::no },
+ { 'H', "format", Arg_parser::yes },
+ { 'n', "threads", Arg_parser::yes },
+ { 'p', "preserve-permissions", Arg_parser::no },
+ { 'q', "quiet", Arg_parser::no },
+ { 'r', "append", Arg_parser::no },
+ { 't', "list", Arg_parser::no },
+ { 'v', "verbose", Arg_parser::no },
+ { 'V', "version", Arg_parser::no },
+ { 'x', "extract", Arg_parser::no },
+ { opt_ano, "anonymous", Arg_parser::no },
+ { opt_aso, "asolid", Arg_parser::no },
+ { opt_bso, "bsolid", Arg_parser::no },
+ { opt_dbg, "debug", Arg_parser::yes },
+ { opt_del, "delete", Arg_parser::no },
+ { opt_dso, "dsolid", Arg_parser::no },
+ { opt_exc, "exclude", Arg_parser::yes },
+ { opt_grp, "group", Arg_parser::yes },
+ { opt_hlp, "help", Arg_parser::no },
+ { opt_id, "ignore-ids", Arg_parser::no },
+ { opt_kd, "keep-damaged", Arg_parser::no },
+ { opt_crc, "missing-crc", Arg_parser::no },
+ { opt_mti, "mtime", Arg_parser::yes },
+ { opt_nso, "no-solid", Arg_parser::no },
+ { opt_out, "out-slots", Arg_parser::yes },
+ { opt_own, "owner", Arg_parser::yes },
+ { opt_per, "permissive", Arg_parser::no },
+ { opt_sol, "solid", Arg_parser::no },
+ { opt_un, "uncompressed", Arg_parser::no },
+ { 0, 0, Arg_parser::no } };
+
+ const Arg_parser parser( argc, argv, options, true ); // in_order
if( parser.error().size() ) // bad option
{ show_error( parser.error().c_str(), 0, true ); return 1; }
+ Cl_options cl_opts( parser );
const long num_online = std::max( 1L, sysconf( _SC_NPROCESSORS_ONLN ) );
long max_workers = sysconf( _SC_THREAD_THREADS_MAX );
if( max_workers < 1 || max_workers > INT_MAX / (int)sizeof (pthread_t) )
max_workers = INT_MAX / sizeof (pthread_t);
- int filenames = 0;
for( int argind = 0; argind < parser.arguments(); ++argind )
{
const int code = parser.code( argind );
if( !code ) // skip non-options
- { if( parser.argument( argind ).size() ) ++filenames; continue; }
+ {
+ if( parser.argument( argind ).empty() )
+ { show_error( "Empty non-option argument." ); return 1; }
+ ++cl_opts.filenames; continue;
+ }
const std::string & sarg = parser.argument( argind );
const char * const arg = sarg.c_str();
switch( code )
{
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
- level = code - '0'; break;
- case 'A': set_mode( program_mode, m_concatenate ); break;
- case 'B': cl_data_size = getnum( arg, min_data_size, max_data_size );
+ cl_opts.level = code - '0'; break;
+ case 'A': set_mode( cl_opts.program_mode, m_concatenate ); break;
+ case 'B': cl_opts.data_size = getnum( arg, min_data_size, max_data_size );
break;
- case 'c': set_mode( program_mode, m_create ); break;
+ case 'c': set_mode( cl_opts.program_mode, m_create ); break;
case 'C': break; // skip chdir
- case 'd': set_mode( program_mode, m_diff ); break;
- case 'f': if( sarg != "-" ) archive_name = sarg; break;
- case 'h': dereference = true; break;
+ case 'd': set_mode( cl_opts.program_mode, m_diff ); break;
+ case 'f': set_archive_name( cl_opts.archive_name, sarg ); break;
+ case 'h': cl_opts.dereference = true; break;
case 'H': break; // ignore format
- case 'n': num_workers = getnum( arg, 0, max_workers ); break;
+ case 'n': cl_opts.num_workers = getnum( arg, 0, max_workers ); break;
+ case 'p': cl_opts.preserve_permissions = true; break;
case 'q': verbosity = -1; break;
- case 'r': set_mode( program_mode, m_append ); break;
- case 't': set_mode( program_mode, m_list ); break;
+ case 'r': set_mode( cl_opts.program_mode, m_append ); break;
+ case 't': set_mode( cl_opts.program_mode, m_list ); break;
case 'v': if( verbosity < 4 ) ++verbosity; break;
case 'V': show_version(); return 0;
- case 'x': set_mode( program_mode, m_extract ); break;
- case opt_ano: set_owner( "root" ); set_group( "root" ); break;
- case opt_aso: solidity = asolid; break;
- case opt_bso: solidity = bsolid; break;
- case opt_crc: missing_crc = true; break;
- case opt_dbg: debug_level = getnum( arg, 0, 3 ); break;
- case opt_del: set_mode( program_mode, m_delete ); break;
- case opt_dso: solidity = dsolid; break;
+ case 'x': set_mode( cl_opts.program_mode, m_extract ); break;
+ case opt_ano: set_owner( cl_opts.owner, "root" );
+ set_group( cl_opts.group, "root" ); break;
+ case opt_aso: cl_opts.solidity = asolid; break;
+ case opt_bso: cl_opts.solidity = bsolid; break;
+ case opt_crc: cl_opts.missing_crc = true; break;
+ case opt_dbg: cl_opts.debug_level = getnum( arg, 0, 3 ); break;
+ case opt_del: set_mode( cl_opts.program_mode, m_delete ); break;
+ case opt_dso: cl_opts.solidity = dsolid; break;
case opt_exc: Exclude::add_pattern( sarg ); break;
- case opt_grp: set_group( arg ); break;
+ case opt_grp: set_group( cl_opts.group, arg ); break;
case opt_hlp: show_help( num_online ); return 0;
- case opt_id: ignore_ids = true; break;
- case opt_kd: keep_damaged = true; break;
- case opt_nso: solidity = no_solid; break;
- case opt_out: out_slots = getnum( arg, 1, 1024 ); break;
- case opt_own: set_owner( arg ); break;
- case opt_per: permissive = true; break;
- case opt_sol: solidity = solid; break;
- case opt_un: level = -1; break;
+ case opt_id: cl_opts.ignore_ids = true; break;
+ case opt_kd: cl_opts.keep_damaged = true; break;
+ case opt_mti: set_mtime( cl_opts.mtime, arg ); break;
+ case opt_nso: cl_opts.solidity = no_solid; break;
+ case opt_out: cl_opts.out_slots = getnum( arg, 1, 1024 ); break;
+ case opt_own: set_owner( cl_opts.owner, arg ); break;
+ case opt_per: cl_opts.permissive = true; break;
+ case opt_sol: cl_opts.solidity = solid; break;
+ case opt_un: cl_opts.level = -1; break;
default : internal_error( "uncaught option" );
}
} // end process options
@@ -429,22 +486,18 @@ int main( const int argc, const char * const argv[] )
setmode( STDOUT_FILENO, O_BINARY );
#endif
- if( num_workers < 0 ) num_workers = std::min( num_online, max_workers );
+ if( cl_opts.num_workers < 0 ) // 0 disables multi-threading
+ cl_opts.num_workers = std::min( num_online, max_workers );
- switch( program_mode )
+ switch( cl_opts.program_mode )
{
- case m_none: show_error( "Missing operation.", 0, true ); return 2;
+ case m_none: show_error( "Missing operation.", 0, true ); return 1;
case m_append:
- case m_create: return encode( archive_name, parser, filenames, level,
- num_workers, out_slots, debug_level,
- program_mode == m_append, dereference );
- case m_concatenate: return concatenate( archive_name, parser, filenames );
- case m_delete: return delete_members( archive_name, parser, filenames,
- missing_crc, permissive );
+ case m_create: return encode( cl_opts );
+ case m_concatenate: return concatenate( cl_opts );
+ case m_delete: return delete_members( cl_opts );
case m_diff:
case m_extract:
- case m_list: return decode( archive_name, parser, filenames,
- num_workers, debug_level, program_mode,
- ignore_ids, keep_damaged, missing_crc, permissive );
+ case m_list: return decode( cl_opts );
}
}