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Added support for raw encoding and decoding to the command 

line tool, and made various cleanups. --lzma was renamed to
--lzma1 to prevent people from accidentally using LZMA when
they want LZMA2.
This commit is contained in:
Lasse Collin 2008-09-04 11:53:06 +03:00
parent 2496aee8a7
commit da98df5440
4 changed files with 50 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/lzma/args.c
View File

@ -60,7 +60,7 @@ enum {
OPT_ARMTHUMB,
OPT_SPARC,
OPT_DELTA,
OPT_LZMA,
OPT_LZMA1,
OPT_LZMA2,
OPT_FILES,
@ -108,7 +108,7 @@ static const struct option long_opts[] = {
{ "armthumb", no_argument, NULL, OPT_ARMTHUMB },
{ "sparc", no_argument, NULL, OPT_SPARC },
{ "delta", optional_argument, NULL, OPT_DELTA },
{ "lzma", optional_argument, NULL, OPT_LZMA },
{ "lzma1", optional_argument, NULL, OPT_LZMA1 },
{ "lzma2", optional_argument, NULL, OPT_LZMA2 },
// Other
@ -300,7 +300,7 @@ parse_real(int argc, char **argv)
add_filter(LZMA_FILTER_DELTA, optarg);
break;
case OPT_LZMA:
case OPT_LZMA1:
add_filter(LZMA_FILTER_LZMA, optarg);
break;
@ -317,6 +317,7 @@ parse_real(int argc, char **argv)
"native",
"alone",
// "gzip",
"raw",
NULL
};
@ -471,10 +472,10 @@ set_compression_settings(void)
my_exit(ERROR);
}
uint64_t memory_usage = lzma_memusage_encoder(opt_filters);
/* opt_mode == MODE_COMPRESS
// If using --format=raw, we can be decoding.
uint64_t memory_usage = opt_mode == MODE_COMPRESS
? lzma_memusage_encoder(opt_filters)
: lzma_memusage_decoder(opt_filters); */
: lzma_memusage_decoder(opt_filters);
// Don't go over the memory limits when the default
// setting is used.
@ -546,7 +547,7 @@ parse_args(int argc, char **argv)
opt_stdout = true;
}
if (opt_mode == MODE_COMPRESS)
if (opt_mode == MODE_COMPRESS || opt_header == HEADER_RAW)
set_compression_settings();
// If no filenames are given, use stdin.

1
src/lzma/args.h
View File

@ -35,6 +35,7 @@ enum header_type {
HEADER_NATIVE,
HEADER_ALONE,
// HEADER_GZIP,
HEADER_RAW,
};

24
src/lzma/help.c
View File

@ -57,7 +57,7 @@ show_help(void)
" -c, --stdout write to standard output and don't delete input files\n"
" -S, --suffix=.SUF use suffix `.SUF' on compressed files instead of `.lzma'\n"
" -F, --format=FMT file format to encode or decode; possible values are\n"
" `auto', `native', `single', `multi', and `alone'\n"
" `auto' (default), `native', `alone', and `raw'\n"
" --files=[FILE] read filenames to process from FILE; if FILE is\n"
" omitted, filenames are read from the standard input;\n"
" filenames must be terminated with the newline character\n"
@ -79,9 +79,9 @@ show_help(void)
puts(_(
" Custom filter chain for compression (alternative for using presets):\n"
"\n"
" --lzma=[OPTS] LZMA filter; OPTS is a comma-separated list of zero or\n"
" more of the following options (valid values; default):\n"
" dict=NUM dictionary size in bytes (1 - 1Gi; 8Mi)\n"
" --lzma1=[OPTS] LZMA1 or LZMA2; OPTS is a comma-separated list of zero or\n"
" --lzma2=[OPTS] more of the following options (valid values; default):\n"
" dict=NUM dictionary size in bytes (1 - 1GiB; 8MiB)\n"
" lc=NUM number of literal context bits (0-8; 3)\n"
" lp=NUM number of literal position bits (0-4; 0)\n"
" pb=NUM number of position bits (0-4; 2)\n"
@ -108,18 +108,6 @@ show_help(void)
" rle=NUM run-length encoder chunk size (0-256; 0)\n"
));
/*
These aren't implemented yet.
puts(_(
" Metadata options:\n"
"\n"
" -N, --name save or restore the original filename and time stamp\n"
" -n, --no-name do not save or restore filename and time stamp (default)\n"
" -S, --sign=KEY sign the data with GnuPG when compressing, or verify\n"
" the signature when decompressing\n"));
*/
puts(_(
" Resource usage options:\n"
"\n"
@ -166,8 +154,8 @@ show_version(void)
printf(
"lzma (LZMA Utils) " PACKAGE_VERSION "\n"
"\n"
"Copyright (C) 1999-2006 Igor Pavlov\n"
"Copyright (C) 2007 Lasse Collin\n"
"Copyright (C) 1999-2008 Igor Pavlov\n"
"Copyright (C) 2007-2008 Lasse Collin\n"
"\n"
"This program is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"

42
src/lzma/process.c
View File

@ -155,18 +155,44 @@ single_init(thread_data *t)
lzma_ret ret;
if (opt_mode == MODE_COMPRESS) {
if (opt_header == HEADER_ALONE) {
ret = lzma_alone_encoder(&t->strm,
opt_filters[0].options);
} else {
switch (opt_header) {
case HEADER_AUTO:
case HEADER_NATIVE:
ret = lzma_stream_encoder(&t->strm,
opt_filters, opt_check);
break;
case HEADER_ALONE:
ret = lzma_alone_encoder(&t->strm,
opt_filters[0].options);
break;
case HEADER_RAW:
ret = lzma_raw_encoder(&t->strm, opt_filters);
break;
}
} else {
// TODO Restrict file format if requested on the command line.
ret = lzma_auto_decoder(&t->strm, opt_memory,
LZMA_WARN_UNSUPPORTED_CHECK
| LZMA_CONCATENATED);
const uint32_t flags = LZMA_WARN_UNSUPPORTED_CHECK
| LZMA_CONCATENATED;
switch (opt_header) {
case HEADER_AUTO:
ret = lzma_auto_decoder(&t->strm, opt_memory, flags);
break;
case HEADER_NATIVE:
ret = lzma_stream_decoder(&t->strm, opt_memory, flags);
break;
case HEADER_ALONE:
ret = lzma_alone_decoder(&t->strm, opt_memory);
break;
case HEADER_RAW:
// Memory usage has already been checked in args.c.
ret = lzma_raw_decoder(&t->strm, opt_filters);
break;
}
}
if (ret != LZMA_OK) {