Magellan Linux

  • Back to homepage
    • /[magellan-source]/trunk/mkinitrd-magellan/busybox/archival/cpio.c

    Annotation of /trunk/mkinitrd-magellan/busybox/archival/cpio.c

    Parent Directory Parent Directory | Revision Log Revision Log

    Revision 532 - (hide annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
    File MIME type: text/plain
    File size: 2299 byte(s) 
    -import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
    1 niro 532 /* vi: set sw=4 ts=4: */
    2     /*
    3     * Mini cpio implementation for busybox
    4     *
    5     * Copyright (C) 2001 by Glenn McGrath
    6     *
    7     * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
    8     *
    9     * Limitations:
    10     * Doesn't check CRC's
    11     * Only supports new ASCII and CRC formats
    12     *
    13     */
    14     #include <fcntl.h>
    15     #include <stdlib.h>
    16     #include <string.h>
    17     #include <unistd.h>
    18     #include "unarchive.h"
    19     #include "busybox.h"
    20    
    21     #define CPIO_OPT_EXTRACT 0x01
    22     #define CPIO_OPT_TEST 0x02
    23     #define CPIO_OPT_UNCONDITIONAL 0x04
    24     #define CPIO_OPT_VERBOSE 0x08
    25     #define CPIO_OPT_FILE 0x10
    26     #define CPIO_OPT_CREATE_LEADING_DIR 0x20
    27     #define CPIO_OPT_PRESERVE_MTIME 0x40
    28    
    29     int cpio_main(int argc, char **argv)
    30     {
    31     archive_handle_t *archive_handle;
    32     char *cpio_filename = NULL;
    33     unsigned opt;
    34    
    35     /* Initialise */
    36     archive_handle = init_handle();
    37     archive_handle->src_fd = STDIN_FILENO;
    38     archive_handle->seek = seek_by_read;
    39     archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
    40    
    41     opt = getopt32(argc, argv, "ituvF:dm", &cpio_filename);
    42    
    43     /* One of either extract or test options must be given */
    44     if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
    45     bb_show_usage();
    46     }
    47    
    48     if (opt & CPIO_OPT_TEST) {
    49     /* if both extract and test options are given, ignore extract option */
    50     if (opt & CPIO_OPT_EXTRACT) {
    51     opt &= ~CPIO_OPT_EXTRACT;
    52     }
    53     archive_handle->action_header = header_list;
    54     }
    55     if (opt & CPIO_OPT_EXTRACT) {
    56     archive_handle->action_data = data_extract_all;
    57     }
    58     if (opt & CPIO_OPT_UNCONDITIONAL) {
    59     archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
    60     archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
    61     }
    62     if (opt & CPIO_OPT_VERBOSE) {
    63     if (archive_handle->action_header == header_list) {
    64     archive_handle->action_header = header_verbose_list;
    65     } else {
    66     archive_handle->action_header = header_list;
    67     }
    68     }
    69     if (cpio_filename) { /* CPIO_OPT_FILE */
    70     archive_handle->src_fd = xopen(cpio_filename, O_RDONLY);
    71     archive_handle->seek = seek_by_jump;
    72     }
    73     if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
    74     archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
    75     }
    76    
    77     while (optind < argc) {
    78     archive_handle->filter = filter_accept_list;
    79     llist_add_to(&(archive_handle->accept), argv[optind]);
    80     optind++;
    81     }
    82    
    83     while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
    84    
    85     return EXIT_SUCCESS;
    86     }