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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-12-28 09:51:38 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-12-28 09:51:38 +0000
commit48fe8b80e2592f26cae686b0b99547b76018aeb1 (patch)
tree5391d0686afd42f555af3f66f948998077e6a508 /main.cc
parentAdding upstream version 0.4. (diff)
downloadtarlz-48fe8b80e2592f26cae686b0b99547b76018aeb1.tar.xz
tarlz-48fe8b80e2592f26cae686b0b99547b76018aeb1.zip
Adding upstream version 0.8.upstream/0.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'main.cc')
-rw-r--r--main.cc121
1 files changed, 81 insertions, 40 deletions
diff --git a/main.cc b/main.cc
index 19a6d31..69c46b4 100644
--- a/main.cc
+++ b/main.cc
@@ -40,6 +40,7 @@
#if defined(__OS2__)
#include <io.h>
#endif
+#include <lzlib.h>
#include "arg_parser.h"
#include "tarlz.h"
@@ -56,21 +57,33 @@ int verbosity = 0;
namespace {
-const char * const Program_name = "Tarlz";
const char * const program_name = "tarlz";
const char * const program_year = "2018";
const char * invocation_name = 0;
-enum Mode { m_none, m_append, m_create, m_extract, m_list };
+enum Mode { m_none, m_append, m_concatenate, m_create, m_extract, m_list };
void show_help()
{
- std::printf( "%s - Archiver with multimember lzip compression.\n", Program_name );
- std::printf( "\nUsage: %s [options] [files]\n", invocation_name );
+ std::printf( "Tarlz is a small and simple implementation of the tar archiver. By default\n"
+ "tarlz creates, lists and extracts archives in a simplified posix pax format\n"
+ "compressed with lzip on a per file basis. Each tar member is compressed in\n"
+ "its own lzip member, as well as the end-of-file blocks. This method is fully\n"
+ "backward compatible with standard tar tools like GNU tar, which treat the\n"
+ "resulting multimember tar.lz archive like any other tar.lz archive. Tarlz\n"
+ "can append files to the end of such compressed archives.\n"
+ "\nThe tarlz file format is a safe posix-style backup format. In case of\n"
+ "corruption, tarlz can extract all the undamaged members from the tar.lz\n"
+ "archive, skipping over the damaged members, just like the standard\n"
+ "(uncompressed) tar. Moreover, the option '--keep-damaged' can be used to\n"
+ "recover as much data as possible from each damaged member, and lziprecover\n"
+ "can be used to recover some of the damaged members.\n"
+ "\nUsage: %s [options] [files]\n", invocation_name );
std::printf( "\nOptions:\n"
" -h, --help display this help and exit\n"
" -V, --version output version information and exit\n"
+ " -A, --concatenate append tar.lz archives to the end of an archive\n"
" -c, --create create a new archive\n"
" -C, --directory=<dir> change to directory <dir>\n"
" -f, --file=<archive> use archive file <archive>\n"
@@ -82,10 +95,15 @@ void show_help()
" -0 .. -9 set compression level [default 6]\n"
" --asolid create solidly compressed appendable archive\n"
" --dsolid create per-directory compressed archive\n"
+ " --no-solid create per-file compressed archive (default)\n"
" --solid create solidly compressed archive\n"
- " --group=<group> use <group> name/id for added files\n"
- " --owner=<owner> use <owner> name/id for added files\n"
- " --uncompressed don't compress the created 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"
+// " --permissive allow repeated extended headers and records\n"
+ " --uncompressed don't compress the archive created\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"
@@ -99,6 +117,7 @@ void show_version()
{
std::printf( "%s %s\n", program_name, PROGVERSION );
std::printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
+ std::printf( "Using lzlib %s\n", LZ_version() );
std::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" );
@@ -280,39 +299,53 @@ int main( const int argc, const char * const argv[] )
std::string archive_name;
Mode program_mode = m_none;
int level = 6; // compression level, < 0 = uncompressed
+ bool keep_damaged = false;
+ bool missing_crc = false;
+ bool permissive = false;
invocation_name = argv[0];
- enum { opt_aso = 256, opt_dso, opt_grp, opt_own, opt_sol, opt_un };
+ if( LZ_version()[0] < '1' )
+ { show_error( "Bad library version. At least lzlib 1.0 is required." );
+ return 1; }
+
+ enum { opt_ano = 256, opt_aso, opt_crc, opt_dso, opt_grp, opt_kd, opt_nso,
+ 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 },
- { 'c', "create", Arg_parser::no },
- { 'C', "directory", Arg_parser::yes },
- { 'f', "file", Arg_parser::yes },
- { 'h', "help", Arg_parser::no },
- { 'H', "format", 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_aso, "asolid", Arg_parser::no },
- { opt_dso, "dsolid", Arg_parser::no },
- { opt_grp, "group", Arg_parser::yes },
- { opt_own, "owner", Arg_parser::yes },
- { opt_sol, "solid", Arg_parser::no },
- { opt_un, "uncompressed", Arg_parser::no },
- { 0 , 0, Arg_parser::no } };
+ { '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 },
+ { 'c', "create", Arg_parser::no },
+ { 'C', "directory", Arg_parser::yes },
+ { 'f', "file", Arg_parser::yes },
+ { 'h', "help", Arg_parser::no },
+ { 'H', "format", 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_dso, "dsolid", Arg_parser::no },
+ { opt_grp, "group", Arg_parser::yes },
+ { opt_kd, "keep-damaged", Arg_parser::no },
+ { opt_crc, "missing-crc", Arg_parser::no },
+ { opt_nso, "no-solid", Arg_parser::no },
+ { 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 );
if( parser.error().size() ) // bad option
@@ -330,6 +363,7 @@ int main( const int argc, const char * const argv[] )
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 'c': set_mode( program_mode, m_create ); break;
case 'C': break; // skip chdir
case 'f': if( sarg != "-" ) archive_name = sarg; break;
@@ -341,12 +375,17 @@ int main( const int argc, const char * const argv[] )
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: cl_solid = 2; break;
+ case opt_crc: missing_crc = true; break;
case opt_dso: cl_solid = 1; break;
case opt_grp: set_group( arg ); break;
+ case opt_kd: keep_damaged = true; break;
+ case opt_nso: cl_solid = 0; break;
case opt_own: set_owner( arg ); break;
+ case opt_per: permissive = true; break;
case opt_sol: cl_solid = 3; break;
- case opt_un: level = -1; break;
+ case opt_un: level = -1; break;
default : internal_error( "uncaught option" );
}
} // end process options
@@ -358,12 +397,14 @@ int main( const int argc, const char * const argv[] )
switch( program_mode )
{
- case m_none: show_error( "Missing operation.", 0, true ); return 2;
+ case m_none: show_error( "Missing operation.", 0, true ); return 2;
case m_append:
case m_create: return encode( archive_name, parser, filenames, level,
program_mode == m_append );
+ case m_concatenate: return concatenate( archive_name, parser, filenames );
case m_extract:
- case m_list:
- return decode( archive_name, parser, filenames, program_mode == m_list );
+ case m_list: return decode( archive_name, parser, filenames,
+ keep_damaged, program_mode == m_list,
+ missing_crc, permissive );
}
}