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/*
* dpkg-deb - construction and deconstruction of *.deb archives
* main.c - main program
*
* Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
* Copyright © 2006-2014 Guillem Jover <guillem@debian.org>
*
* This 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 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 <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <limits.h>
#if HAVE_LOCALE_H
#include <locale.h>
#endif
#include <errno.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <dpkg/macros.h>
#include <dpkg/i18n.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#include <dpkg/compress.h>
#include <dpkg/options.h>
#include "dpkg-deb.h"
const char *showformat = "${Package}\t${Version}\n";
static void DPKG_ATTR_NORET
printversion(const struct cmdinfo *cip, const char *value)
{
printf(_("Debian '%s' package archive backend version %s.\n"),
BACKEND, PACKAGE_RELEASE);
printf(_(
"This is free software; see the GNU General Public License version 2 or\n"
"later for copying conditions. There is NO warranty.\n"));
m_output(stdout, _("<standard output>"));
exit(0);
}
static void DPKG_ATTR_NORET
usage(const struct cmdinfo *cip, const char *value)
{
printf(_(
"Usage: %s [<option> ...] <command>\n"
"\n"), BACKEND);
printf(_(
"Commands:\n"
" -b|--build <directory> [<deb>] Build an archive.\n"
" -c|--contents <deb> List contents.\n"
" -I|--info <deb> [<cfile> ...] Show info to stdout.\n"
" -W|--show <deb> Show information on package(s)\n"
" -f|--field <deb> [<cfield> ...] Show field(s) to stdout.\n"
" -e|--control <deb> [<directory>] Extract control info.\n"
" -x|--extract <deb> <directory> Extract files.\n"
" -X|--vextract <deb> <directory> Extract & list files.\n"
" -R|--raw-extract <deb> <directory>\n"
" Extract control info and files.\n"
" --ctrl-tarfile <deb> Output control tarfile.\n"
" --fsys-tarfile <deb> Output filesystem tarfile.\n"
"\n"));
printf(_(
" -?, --help Show this help message.\n"
" --version Show the version.\n"
"\n"));
printf(_(
"<deb> is the filename of a Debian format archive.\n"
"<cfile> is the name of an administrative file component.\n"
"<cfield> is the name of a field in the main 'control' file.\n"
"\n"));
printf(_(
"Options:\n"
" -v, --verbose Enable verbose output.\n"
" -D, --debug Enable debugging output.\n"
" --showformat=<format> Use alternative format for --show.\n"
" --deb-format=<format> Select archive format.\n"
" Allowed values: 0.939000, 2.0 (default).\n"
" --nocheck Suppress control file check (build bad\n"
" packages).\n"
" --root-owner-group Forces the owner and groups to root.\n"
" --[no-]uniform-compression Use the compression params on all members.\n"
" -z# Set the compression level when building.\n"
" -Z<type> Set the compression type used when building.\n"
" Allowed types: gzip, xz, none.\n"
" -S<strategy> Set the compression strategy when building.\n"
" Allowed values: none; extreme (xz);\n"
" filtered, huffman, rle, fixed (gzip).\n"
"\n"));
printf(_(
"Format syntax:\n"
" A format is a string that will be output for each package. The format\n"
" can include the standard escape sequences \\n (newline), \\r (carriage\n"
" return) or \\\\ (plain backslash). Package information can be included\n"
" by inserting variable references to package fields using the ${var[;width]}\n"
" syntax. Fields will be right-aligned unless the width is negative in which\n"
" case left alignment will be used.\n"));
printf(_(
"\n"
"Use 'dpkg' to install and remove packages from your system, or\n"
"'apt' or 'aptitude' for user-friendly package management. Packages\n"
"unpacked using 'dpkg-deb --extract' will be incorrectly installed !\n"));
m_output(stdout, _("<standard output>"));
exit(0);
}
static const char printforhelp[] =
N_("Type dpkg-deb --help for help about manipulating *.deb files;\n"
"Type dpkg --help for help about installing and deinstalling packages.");
int debugflag = 0;
int nocheckflag = 0;
int opt_verbose = 0;
int opt_root_owner_group = 0;
int opt_uniform_compression = 1;
struct deb_version deb_format = DEB_VERSION(2, 0);
static void
set_deb_format(const struct cmdinfo *cip, const char *value)
{
const char *err;
err = deb_version_parse(&deb_format, value);
if (err)
badusage(_("invalid deb format version: %s"), err);
if ((deb_format.major == 2 && deb_format.minor == 0) ||
(deb_format.major == 0 && deb_format.minor == 939000))
return;
else
badusage(_("unknown deb format version: %s"), value);
}
struct compress_params compress_params = {
.type = DPKG_DEB_DEFAULT_COMPRESSOR,
.strategy = COMPRESSOR_STRATEGY_NONE,
.level = -1,
};
static void
set_compress_level(const struct cmdinfo *cip, const char *value)
{
long level;
level = dpkg_options_parse_arg_int(cip, value);
if (level < 0 || level > 9)
badusage(_("invalid compression level for -%c: %ld"), cip->oshort, level);
compress_params.level = level;
}
static void
set_compress_strategy(const struct cmdinfo *cip, const char *value)
{
compress_params.strategy = compressor_get_strategy(value);
if (compress_params.strategy == COMPRESSOR_STRATEGY_UNKNOWN)
badusage(_("unknown compression strategy '%s'!"), value);
}
static void
set_compress_type(const struct cmdinfo *cip, const char *value)
{
compress_params.type = compressor_find_by_name(value);
if (compress_params.type == COMPRESSOR_TYPE_UNKNOWN)
badusage(_("unknown compression type '%s'!"), value);
if (compress_params.type == COMPRESSOR_TYPE_LZMA)
badusage(_("obsolete compression type '%s'; use xz instead"), value);
if (compress_params.type == COMPRESSOR_TYPE_BZIP2)
badusage(_("obsolete compression type '%s'; use xz or gzip instead"), value);
}
static const struct cmdinfo cmdinfos[]= {
ACTION("build", 'b', 0, do_build),
ACTION("contents", 'c', 0, do_contents),
ACTION("control", 'e', 0, do_control),
ACTION("info", 'I', 0, do_info),
ACTION("field", 'f', 0, do_field),
ACTION("extract", 'x', 0, do_extract),
ACTION("vextract", 'X', 0, do_vextract),
ACTION("raw-extract", 'R', 0, do_raw_extract),
ACTION("ctrl-tarfile", 0, 0, do_ctrltarfile),
ACTION("fsys-tarfile", 0, 0, do_fsystarfile),
ACTION("show", 'W', 0, do_showinfo),
{ "deb-format", 0, 1, NULL, NULL, set_deb_format },
{ "debug", 'D', 0, &debugflag, NULL, NULL, 1 },
{ "verbose", 'v', 0, &opt_verbose, NULL, NULL, 1 },
{ "nocheck", 0, 0, &nocheckflag, NULL, NULL, 1 },
{ "root-owner-group", 0, 0, &opt_root_owner_group, NULL, NULL, 1 },
{ "uniform-compression", 0, 0, &opt_uniform_compression, NULL, NULL, 1 },
{ "no-uniform-compression", 0, 0, &opt_uniform_compression, NULL, NULL, 0 },
{ NULL, 'z', 1, NULL, NULL, set_compress_level },
{ NULL, 'Z', 1, NULL, NULL, set_compress_type },
{ NULL, 'S', 1, NULL, NULL, set_compress_strategy },
{ "showformat", 0, 1, NULL, &showformat, NULL },
{ "help", '?', 0, NULL, NULL, usage },
{ "version", 0, 0, NULL, NULL, printversion },
{ NULL, 0, 0, NULL, NULL, NULL }
};
int main(int argc, const char *const *argv) {
struct dpkg_error err;
int ret;
dpkg_locales_init(PACKAGE);
dpkg_program_init(BACKEND);
dpkg_options_parse(&argv, cmdinfos, printforhelp);
if (!cipaction) badusage(_("need an action option"));
if (!compressor_check_params(&compress_params, &err))
badusage(_("invalid compressor parameters: %s"), err.str);
if (opt_uniform_compression &&
(compress_params.type != COMPRESSOR_TYPE_NONE &&
compress_params.type != COMPRESSOR_TYPE_GZIP &&
compress_params.type != COMPRESSOR_TYPE_XZ))
badusage(_("unsupported compression type '%s' with uniform compression"),
compressor_get_name(compress_params.type));
ret = cipaction->action(argv);
dpkg_program_done();
return ret;
}
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