diff options
Diffstat (limited to 'release/src/router/busybox/archival/ar.c')
| -rw-r--r-- | release/src/router/busybox/archival/ar.c | 151 |
1 files changed, 47 insertions, 104 deletions
diff --git a/release/src/router/busybox/archival/ar.c b/release/src/router/busybox/archival/ar.c index 57ec9271..dbff6775 100644 --- a/release/src/router/busybox/archival/ar.c +++ b/release/src/router/busybox/archival/ar.c @@ -1,44 +1,22 @@ /* vi: set sw=4 ts=4: */ /* - * Mini ar implementation for busybox + * Mini ar implementation for busybox * * Copyright (C) 2000 by Glenn McGrath - * Written by Glenn McGrath <bug1@optushome.com.au> 1 June 2000 - * - * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar. - * - * 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. + * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. * - * There is no signle standard to adhere to so ar may not portable + * There is no single standard to adhere to so ar may not portable * between different systems * http://www.unix-systems.org/single_unix_specification_v2/xcu/ar.html */ -#include <sys/types.h> -#include <fcntl.h> -#include <fnmatch.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <utime.h> -#include <unistd.h> -#include <getopt.h> + +#include "libbb.h" #include "unarchive.h" -#include "busybox.h" -static void header_verbose_list_ar(const file_header_t *file_header) +static void FAST_FUNC header_verbose_list_ar(const file_header_t *file_header) { const char *mode = bb_mode_string(file_header->mode); char *mtime; @@ -47,98 +25,63 @@ static void header_verbose_list_ar(const file_header_t *file_header) mtime[16] = ' '; memmove(&mtime[17], &mtime[20], 4); mtime[21] = '\0'; - printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, (int) file_header->size, &mtime[4], file_header->name); + printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, + (int) file_header->size, &mtime[4], file_header->name); } -#if !defined CONFIG_TAR && !defined CONFIG_DPKG_DEB && !defined CONFIG_CPIO -/* This is simpler than data_extract_all */ -static void data_extract_regular_file(archive_handle_t *archive_handle) -{ - file_header_t *file_header; - int dst_fd; - - file_header = archive_handle->file_header; - dst_fd = bb_xopen(file_header->name, O_WRONLY | O_CREAT); - archive_copy_file(archive_handle, dst_fd); - close(dst_fd); - - chmod(file_header->name, file_header->mode); - chown(file_header->name, file_header->uid, file_header->gid); - - if (archive_handle->flags & ARCHIVE_PRESERVE_DATE) { - struct utimbuf t; - t.actime = t.modtime = file_header->mtime; - utime(file_header->name, &t); - } - - return; -} -#endif +#define AR_CTX_PRINT 0x01 +#define AR_CTX_LIST 0x02 +#define AR_CTX_EXTRACT 0x04 +#define AR_OPT_PRESERVE_DATE 0x08 +#define AR_OPT_VERBOSE 0x10 +#define AR_OPT_CREATE 0x20 +#define AR_OPT_INSERT 0x40 -extern int ar_main(int argc, char **argv) +int ar_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int ar_main(int argc, char **argv) { + static const char msg_unsupported_err[] ALIGN1 = + "archive %s is not supported"; + archive_handle_t *archive_handle; - int opt; + unsigned opt; -#if !defined CONFIG_DPKG_DEB && !defined CONFIG_DPKG - char magic[8]; -#endif archive_handle = init_handle(); - while ((opt = getopt(argc, argv, "covtpxX")) != -1) { - switch (opt) { - case 'p': /* print */ - archive_handle->action_data = data_extract_to_stdout; - break; - case 't': /* list contents */ - archive_handle->action_header = header_list; - break; - case 'X': - archive_handle->action_header = header_verbose_list_ar; - case 'x': /* extract */ -#if defined CONFIG_TAR || defined CONFIG_DPKG_DEB || defined CONFIG_CPIO - archive_handle->action_data = data_extract_all; -#else - archive_handle->action_data = data_extract_regular_file; -#endif - break; - /* Modifiers */ - case 'o': /* preserve original dates */ - archive_handle->flags |= ARCHIVE_PRESERVE_DATE; - break; - case 'v': /* verbose */ - archive_handle->action_header = header_verbose_list_ar; - break; - default: - bb_show_usage(); - } + /* Prepend '-' to the first argument if required */ + opt_complementary = "--:p:t:x:-1:p--tx:t--px:x--pt"; + opt = getopt32(argv, "ptxovcr"); + + if (opt & AR_CTX_PRINT) { + archive_handle->action_data = data_extract_to_stdout; + } + if (opt & AR_CTX_LIST) { + archive_handle->action_header = header_list; + } + if (opt & AR_CTX_EXTRACT) { + archive_handle->action_data = data_extract_all; } - - /* check the src filename was specified */ - if (optind == argc) { - bb_show_usage(); + if (opt & AR_OPT_PRESERVE_DATE) { + archive_handle->ah_flags |= ARCHIVE_PRESERVE_DATE; + } + if (opt & AR_OPT_VERBOSE) { + archive_handle->action_header = header_verbose_list_ar; + } + if (opt & AR_OPT_CREATE) { + bb_error_msg_and_die(msg_unsupported_err, "creation"); + } + if (opt & AR_OPT_INSERT) { + bb_error_msg_and_die(msg_unsupported_err, "insertion"); } - archive_handle->src_fd = bb_xopen(argv[optind++], O_RDONLY); + archive_handle->src_fd = xopen(argv[optind++], O_RDONLY); - /* TODO: This is the same as in tar, seperate function ? */ while (optind < argc) { archive_handle->filter = filter_accept_list; - archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind]); - optind++; + llist_add_to(&(archive_handle->accept), argv[optind++]); } -#if defined CONFIG_DPKG_DEB || defined CONFIG_DPKG unpack_ar_archive(archive_handle); -#else - archive_xread_all(archive_handle, magic, 7); - if (strncmp(magic, "!<arch>", 7) != 0) { - bb_error_msg_and_die("Invalid ar magic"); - } - archive_handle->offset += 7; - - while (get_header_ar(archive_handle) == EXIT_SUCCESS); -#endif return EXIT_SUCCESS; } |