diff options
Diffstat (limited to 'contrib/cpio/src/copyout.c')
| -rw-r--r-- | contrib/cpio/src/copyout.c | 1010 |
1 files changed, 0 insertions, 1010 deletions
diff --git a/contrib/cpio/src/copyout.c b/contrib/cpio/src/copyout.c deleted file mode 100644 index 5e429faa9da8..000000000000 --- a/contrib/cpio/src/copyout.c +++ /dev/null @@ -1,1010 +0,0 @@ -/* $FreeBSD$ */ - -/* copyout.c - create a cpio archive - Copyright (C) 1990, 1991, 1992, 2001, 2003, 2004, - 2006 Free Software Foundation, Inc. - - 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, 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. - - 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., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301 USA. */ - -#include <system.h> - -#include <stdio.h> -#include <sys/types.h> -#include <sys/stat.h> -#include "filetypes.h" -#include "cpiohdr.h" -#include "dstring.h" -#include "extern.h" -#include "defer.h" -#include <rmt.h> -#include <paxlib.h> - -static int check_rdev (); - -/* Read FILE_SIZE bytes of FILE_NAME from IN_FILE_DES and - compute and return a checksum for them. */ - -static unsigned int -read_for_checksum (int in_file_des, int file_size, char *file_name) -{ - unsigned int crc; - char buf[BUFSIZ]; - int bytes_left; - int bytes_read; - int i; - - crc = 0; - - for (bytes_left = file_size; bytes_left > 0; bytes_left -= bytes_read) - { - bytes_read = read (in_file_des, buf, BUFSIZ); - if (bytes_read < 0) - error (1, errno, _("cannot read checksum for %s"), file_name); - if (bytes_read == 0) - break; - if (bytes_left < bytes_read) - bytes_read = bytes_left; - for (i = 0; i < bytes_read; ++i) - crc += buf[i] & 0xff; - } - if (lseek (in_file_des, 0L, SEEK_SET)) - error (1, errno, _("cannot read checksum for %s"), file_name); - - return crc; -} - -/* Write out NULs to fill out the rest of the current block on - OUT_FILE_DES. */ - -static void -tape_clear_rest_of_block (int out_file_des) -{ - write_nuls_to_file (io_block_size - output_size, out_file_des, - tape_buffered_write); -} - -/* Write NULs on OUT_FILE_DES to move from OFFSET (the current location) - to the end of the header. */ - -static void -tape_pad_output (int out_file_des, int offset) -{ - size_t pad; - - if (archive_format == arf_newascii || archive_format == arf_crcascii) - pad = (4 - (offset % 4)) % 4; - else if (archive_format == arf_tar || archive_format == arf_ustar) - pad = (512 - (offset % 512)) % 512; - else if (archive_format != arf_oldascii && archive_format != arf_hpoldascii) - pad = (2 - (offset % 2)) % 2; - else - pad = 0; - - if (pad != 0) - write_nuls_to_file (pad, out_file_des, tape_buffered_write); -} - - -/* When creating newc and crc archives if a file has multiple (hard) - links, we don't put any of them into the archive until we have seen - all of them (or until we get to the end of the list of files that - are going into the archive and know that we have seen all of the links - to the file that we will see). We keep these "defered" files on - this list. */ - -struct deferment *deferouts = NULL; - -/* Count the number of other (hard) links to this file that have - already been defered. */ - -static int -count_defered_links_to_dev_ino (struct cpio_file_stat *file_hdr) -{ - struct deferment *d; - int ino; - int maj; - int min; - int count; - ino = file_hdr->c_ino; - maj = file_hdr->c_dev_maj; - min = file_hdr->c_dev_min; - count = 0; - for (d = deferouts; d != NULL; d = d->next) - { - if ( (d->header.c_ino == ino) && (d->header.c_dev_maj == maj) - && (d->header.c_dev_min == min) ) - ++count; - } - return count; -} - -/* Is this file_hdr the last (hard) link to a file? I.e., have - we already seen and defered all of the other links? */ - -static int -last_link (struct cpio_file_stat *file_hdr) -{ - int other_files_sofar; - - other_files_sofar = count_defered_links_to_dev_ino (file_hdr); - if (file_hdr->c_nlink == (other_files_sofar + 1) ) - { - return 1; - } - return 0; -} - - -/* Add the file header for a link that is being defered to the deferouts - list. */ - -static void -add_link_defer (struct cpio_file_stat *file_hdr) -{ - struct deferment *d; - d = create_deferment (file_hdr); - d->next = deferouts; - deferouts = d; -} - -/* We are about to put a file into a newc or crc archive that is - multiply linked. We have already seen and deferred all of the - other links to the file but haven't written them into the archive. - Write the other links into the archive, and remove them from the - deferouts list. */ - -static void -writeout_other_defers (struct cpio_file_stat *file_hdr, int out_des) -{ - struct deferment *d; - struct deferment *d_prev; - int ino; - int maj; - int min; - ino = file_hdr->c_ino; - maj = file_hdr->c_dev_maj; - min = file_hdr->c_dev_min; - d_prev = NULL; - d = deferouts; - while (d != NULL) - { - if ( (d->header.c_ino == ino) && (d->header.c_dev_maj == maj) - && (d->header.c_dev_min == min) ) - { - struct deferment *d_free; - d->header.c_filesize = 0; - write_out_header (&d->header, out_des); - if (d_prev != NULL) - d_prev->next = d->next; - else - deferouts = d->next; - d_free = d; - d = d->next; - free_deferment (d_free); - } - else - { - d_prev = d; - d = d->next; - } - } - return; -} - -/* Write a file into the archive. This code is the same as - the code in process_copy_out(), but we need it here too - for writeout_final_defers() to call. */ - -static void -writeout_defered_file (struct cpio_file_stat *header, int out_file_des) -{ - int in_file_des; - struct cpio_file_stat file_hdr; - - file_hdr = *header; - - - in_file_des = open (header->c_name, - O_RDONLY | O_BINARY, 0); - if (in_file_des < 0) - { - open_error (header->c_name); - return; - } - - if (archive_format == arf_crcascii) - file_hdr.c_chksum = read_for_checksum (in_file_des, - file_hdr.c_filesize, - header->c_name); - - if (write_out_header (&file_hdr, out_file_des)) - return; - copy_files_disk_to_tape (in_file_des, out_file_des, file_hdr.c_filesize, - header->c_name); - warn_if_file_changed(header->c_name, file_hdr.c_filesize, file_hdr.c_mtime); - - if (archive_format == arf_tar || archive_format == arf_ustar) - add_inode (file_hdr.c_ino, file_hdr.c_name, file_hdr.c_dev_maj, - file_hdr.c_dev_min); - - tape_pad_output (out_file_des, file_hdr.c_filesize); - - if (reset_time_flag) - set_file_times (in_file_des, file_hdr.c_name, file_hdr.c_mtime, - file_hdr.c_mtime); - if (close (in_file_des) < 0) - close_error (header->c_name); -} - -/* When writing newc and crc format archives we defer multiply linked - files until we have seen all of the links to the file. If a file - has links to it that aren't going into the archive, then we will - never see the "last" link to the file, so at the end we just write - all of the leftover defered files into the archive. */ - -static void -writeout_final_defers (int out_des) -{ - struct deferment *d; - int other_count; - while (deferouts != NULL) - { - d = deferouts; - other_count = count_defered_links_to_dev_ino (&d->header); - if (other_count == 1) - { - writeout_defered_file (&d->header, out_des); - } - else - { - struct cpio_file_stat file_hdr; - file_hdr = d->header; - file_hdr.c_filesize = 0; - write_out_header (&file_hdr, out_des); - } - deferouts = deferouts->next; - } -} - -/* FIXME: to_ascii could be used instead of to_oct() and to_octal() from tar, - so it should be moved to paxutils too. - Allowed values for logbase are: 1 (binary), 2, 3 (octal), 4 (hex) */ -int -to_ascii (char *where, uintmax_t v, size_t digits, unsigned logbase) -{ - static char codetab[] = "0123456789ABCDEF"; - int i = digits; - - do - { - where[--i] = codetab[(v & ((1 << logbase) - 1))]; - v >>= logbase; - } - while (i); - - return v != 0; -} - -static void -field_width_error (const char *filename, const char *fieldname) -{ - error (0, 0, _("%s: field width not sufficient for storing %s"), - filename, fieldname); -} - -static void -field_width_warning (const char *filename, const char *fieldname) -{ - if (warn_option & CPIO_WARN_TRUNCATE) - error (0, 0, _("%s: truncating %s"), filename, fieldname); -} - -void -to_ascii_or_warn (char *where, uintmax_t n, size_t digits, - unsigned logbase, - const char *filename, const char *fieldname) -{ - if (to_ascii (where, n, digits, logbase)) - field_width_warning (filename, fieldname); -} - -int -to_ascii_or_error (char *where, uintmax_t n, size_t digits, - unsigned logbase, - const char *filename, const char *fieldname) -{ - if (to_ascii (where, n, digits, logbase)) - { - field_width_error (filename, fieldname); - return 1; - } - return 0; -} - - -int -write_out_new_ascii_header (const char *magic_string, - struct cpio_file_stat *file_hdr, int out_des) -{ - char ascii_header[110]; - char *p; - - p = stpcpy (ascii_header, magic_string); - to_ascii_or_warn (p, file_hdr->c_ino, 8, LG_16, - file_hdr->c_name, _("inode number")); - p += 8; - to_ascii_or_warn (p, file_hdr->c_mode, 8, LG_16, file_hdr->c_name, - _("file mode")); - p += 8; - to_ascii_or_warn (p, file_hdr->c_uid, 8, LG_16, file_hdr->c_name, - _("uid")); - p += 8; - to_ascii_or_warn (p, file_hdr->c_gid, 8, LG_16, file_hdr->c_name, - _("gid")); - p += 8; - to_ascii_or_warn (p, file_hdr->c_nlink, 8, LG_16, file_hdr->c_name, - _("number of links")); - p += 8; - to_ascii_or_warn (p, file_hdr->c_mtime, 8, LG_16, file_hdr->c_name, - _("modification time")); - p += 8; - if (to_ascii_or_error (p, file_hdr->c_filesize, 8, LG_16, file_hdr->c_name, - _("file size"))) - return 1; - p += 8; - if (to_ascii_or_error (p, file_hdr->c_dev_maj, 8, LG_16, file_hdr->c_name, - _("device major number"))) - return 1; - p += 8; - if (to_ascii_or_error (p, file_hdr->c_dev_min, 8, LG_16, file_hdr->c_name, - _("device minor number"))) - return 1; - p += 8; - if (to_ascii_or_error (p, file_hdr->c_rdev_maj, 8, LG_16, file_hdr->c_name, - _("rdev major"))) - return 1; - p += 8; - if (to_ascii_or_error (p, file_hdr->c_rdev_min, 8, LG_16, file_hdr->c_name, - _("rdev minor"))) - return 1; - p += 8; - if (to_ascii_or_error (p, file_hdr->c_namesize, 8, LG_16, file_hdr->c_name, - _("name size"))) - return 1; - p += 8; - to_ascii (p, file_hdr->c_chksum & 0xffffffff, 8, LG_16); - - tape_buffered_write (ascii_header, out_des, sizeof ascii_header); - - /* Write file name to output. */ - tape_buffered_write (file_hdr->c_name, out_des, (long) file_hdr->c_namesize); - tape_pad_output (out_des, file_hdr->c_namesize + sizeof ascii_header); - return 0; -} - -int -write_out_old_ascii_header (dev_t dev, dev_t rdev, - struct cpio_file_stat *file_hdr, int out_des) -{ - char ascii_header[76]; - char *p = ascii_header; - - to_ascii (p, file_hdr->c_magic, 6, LG_8); - p += 6; - to_ascii_or_warn (p, dev, 6, LG_8, file_hdr->c_name, _("device number")); - p += 6; - to_ascii_or_warn (p, file_hdr->c_ino, 6, LG_8, file_hdr->c_name, - _("inode number")); - p += 6; - to_ascii_or_warn (p, file_hdr->c_mode, 6, LG_8, file_hdr->c_name, - _("file mode")); - p += 6; - to_ascii_or_warn (p, file_hdr->c_uid, 6, LG_8, file_hdr->c_name, _("uid")); - p += 6; - to_ascii_or_warn (p, file_hdr->c_gid, 6, LG_8, file_hdr->c_name, _("gid")); - p += 6; - to_ascii_or_warn (p, file_hdr->c_nlink, 6, LG_8, file_hdr->c_name, - _("number of links")); - p += 6; - to_ascii_or_warn (p, rdev, 6, LG_8, file_hdr->c_name, _("rdev")); - p += 6; - to_ascii_or_warn (p, file_hdr->c_mtime, 11, LG_8, file_hdr->c_name, - _("modification time")); - p += 11; - if (to_ascii_or_error (p, file_hdr->c_namesize, 6, LG_8, file_hdr->c_name, - _("name size"))) - return 1; - p += 6; - if (to_ascii_or_error (p, file_hdr->c_filesize, 11, LG_8, file_hdr->c_name, - _("file size"))) - return 1; - - tape_buffered_write (ascii_header, out_des, sizeof ascii_header); - - /* Write file name to output. */ - tape_buffered_write (file_hdr->c_name, out_des, file_hdr->c_namesize); - return 0; -} - -void -hp_compute_dev (struct cpio_file_stat *file_hdr, dev_t *pdev, dev_t *prdev) -{ - /* HP/UX cpio creates archives that look just like ordinary archives, - but for devices it sets major = 0, minor = 1, and puts the - actual major/minor number in the filesize field. */ - switch (file_hdr->c_mode & CP_IFMT) - { - case CP_IFCHR: - case CP_IFBLK: -#ifdef CP_IFSOCK - case CP_IFSOCK: -#endif -#ifdef CP_IFIFO - case CP_IFIFO: -#endif - file_hdr->c_filesize = makedev (file_hdr->c_rdev_maj, - file_hdr->c_rdev_min); - *pdev = *prdev = makedev (0, 1); - break; - - default: - *pdev = makedev (file_hdr->c_dev_maj, file_hdr->c_dev_min); - *prdev = makedev (file_hdr->c_rdev_maj, file_hdr->c_rdev_min); - break; - } -} - -int -write_out_binary_header (dev_t rdev, - struct cpio_file_stat *file_hdr, int out_des) -{ - struct old_cpio_header short_hdr; - - short_hdr.c_magic = 070707; - short_hdr.c_dev = makedev (file_hdr->c_dev_maj, file_hdr->c_dev_min); - - if ((warn_option & CPIO_WARN_TRUNCATE) && (file_hdr->c_ino >> 16) != 0) - error (0, 0, _("%s: truncating inode number"), file_hdr->c_name); - - short_hdr.c_ino = file_hdr->c_ino & 0xFFFF; - if (short_hdr.c_ino != file_hdr->c_ino) - field_width_warning (file_hdr->c_name, _("inode number")); - - short_hdr.c_mode = file_hdr->c_mode & 0xFFFF; - if (short_hdr.c_mode != file_hdr->c_mode) - field_width_warning (file_hdr->c_name, _("file mode")); - - short_hdr.c_uid = file_hdr->c_uid & 0xFFFF; - if (short_hdr.c_uid != file_hdr->c_uid) - field_width_warning (file_hdr->c_name, _("uid")); - - short_hdr.c_gid = file_hdr->c_gid & 0xFFFF; - if (short_hdr.c_gid != file_hdr->c_gid) - field_width_warning (file_hdr->c_name, _("gid")); - - short_hdr.c_nlink = file_hdr->c_nlink & 0xFFFF; - if (short_hdr.c_nlink != file_hdr->c_nlink) - field_width_warning (file_hdr->c_name, _("number of links")); - - short_hdr.c_rdev = rdev; - short_hdr.c_mtimes[0] = file_hdr->c_mtime >> 16; - short_hdr.c_mtimes[1] = file_hdr->c_mtime & 0xFFFF; - - short_hdr.c_namesize = file_hdr->c_namesize & 0xFFFF; - if (short_hdr.c_namesize != file_hdr->c_namesize) - { - field_width_error (file_hdr->c_name, _("name size")); - return 1; - } - - short_hdr.c_filesizes[0] = file_hdr->c_filesize >> 16; - short_hdr.c_filesizes[1] = file_hdr->c_filesize & 0xFFFF; - - if (((off_t)short_hdr.c_filesizes[0] << 16) + short_hdr.c_filesizes[1] - != file_hdr->c_filesize) - { - field_width_error (file_hdr->c_name, _("file size")); - return 1; - } - - /* Output the file header. */ - tape_buffered_write ((char *) &short_hdr, out_des, 26); - - /* Write file name to output. */ - tape_buffered_write (file_hdr->c_name, out_des, file_hdr->c_namesize); - - tape_pad_output (out_des, file_hdr->c_namesize + 26); - return 0; -} - - -/* Write out header FILE_HDR, including the file name, to file - descriptor OUT_DES. */ - -int -write_out_header (struct cpio_file_stat *file_hdr, int out_des) -{ - dev_t dev; - dev_t rdev; - - switch (archive_format) - { - case arf_newascii: - return write_out_new_ascii_header ("070701", file_hdr, out_des); - - case arf_crcascii: - return write_out_new_ascii_header ("070702", file_hdr, out_des); - - case arf_oldascii: - return write_out_old_ascii_header (makedev (file_hdr->c_dev_maj, - file_hdr->c_dev_min), - makedev (file_hdr->c_rdev_maj, - file_hdr->c_rdev_min), - file_hdr, out_des); - - case arf_hpoldascii: - hp_compute_dev (file_hdr, &dev, &rdev); - return write_out_old_ascii_header (dev, rdev, file_hdr, out_des); - - case arf_tar: - case arf_ustar: - if (is_tar_filename_too_long (file_hdr->c_name)) - { - error (0, 0, _("%s: file name too long"), file_hdr->c_name); - return 1; - } - write_out_tar_header (file_hdr, out_des); /* FIXME: No error checking */ - return 0; - - case arf_binary: - return write_out_binary_header (makedev (file_hdr->c_rdev_maj, - file_hdr->c_rdev_min), - file_hdr, out_des); - - case arf_hpbinary: - hp_compute_dev (file_hdr, &dev, &rdev); - /* FIXME: dev ignored. Should it be? */ - return write_out_binary_header (rdev, file_hdr, out_des); - - default: - abort (); - } -} - -static void -assign_string (char **pvar, char *value) -{ - char *p = xrealloc (*pvar, strlen (value) + 1); - strcpy (p, value); - *pvar = p; -} - -/* Read a list of file names from the standard input - and write a cpio collection on the standard output. - The format of the header depends on the compatibility (-c) flag. */ - -void -process_copy_out () -{ - int res; /* Result of functions. */ - dynamic_string input_name; /* Name of file read from stdin. */ - struct stat file_stat; /* Stat record for file. */ - struct cpio_file_stat file_hdr; /* Output header information. */ - int in_file_des; /* Source file descriptor. */ - int out_file_des; /* Output file descriptor. */ - char *orig_file_name = NULL; - - /* Initialize the copy out. */ - ds_init (&input_name, 128); - file_hdr.c_magic = 070707; - - /* Check whether the output file might be a tape. */ - out_file_des = archive_des; - if (_isrmt (out_file_des)) - { - output_is_special = 1; - output_is_seekable = 0; - } - else - { - if (fstat (out_file_des, &file_stat)) - error (1, errno, _("standard output is closed")); - output_is_special = -#ifdef S_ISBLK - S_ISBLK (file_stat.st_mode) || -#endif - S_ISCHR (file_stat.st_mode); - output_is_seekable = S_ISREG (file_stat.st_mode); - } - - if (append_flag) - { - process_copy_in (); - prepare_append (out_file_des); - } - - /* Copy files with names read from stdin. */ - while (ds_fgetstr (stdin, &input_name, name_end) != NULL) - { - /* Check for blank line. */ - if (input_name.ds_string[0] == 0) - { - error (0, 0, _("blank line ignored")); - continue; - } - - /* Process next file. */ - if ((*xstat) (input_name.ds_string, &file_stat) < 0) - stat_error (input_name.ds_string); - else - { - /* Set values in output header. */ - stat_to_cpio (&file_hdr, &file_stat); - - if (archive_format == arf_tar || archive_format == arf_ustar) - { - if (file_hdr.c_mode & CP_IFDIR) - { - int len = strlen (input_name.ds_string); - /* Make sure the name ends with a slash */ - if (input_name.ds_string[len-1] != '/') - { - ds_resize (&input_name, len + 2); - input_name.ds_string[len] = '/'; - input_name.ds_string[len+1] = 0; - } - } - } - - switch (check_rdev (&file_hdr)) - { - case 1: - error (0, 0, "%s not dumped: major number would be truncated", - file_hdr.c_name); - continue; - case 2: - error (0, 0, "%s not dumped: minor number would be truncated", - file_hdr.c_name); - continue; - case 4: - error (0, 0, "%s not dumped: device number would be truncated", - file_hdr.c_name); - continue; - } - - assign_string (&orig_file_name, input_name.ds_string); - cpio_safer_name_suffix (input_name.ds_string, false, - abs_paths_flag, true); -#ifndef HPUX_CDF - file_hdr.c_name = input_name.ds_string; - file_hdr.c_namesize = strlen (input_name.ds_string) + 1; -#else - if ( (archive_format != arf_tar) && (archive_format != arf_ustar) ) - { - /* We mark CDF's in cpio files by adding a 2nd `/' after the - "hidden" directory name. We need to do this so we can - properly recreate the directory as hidden (in case the - files of a directory go into the archive before the - directory itself (e.g from "find ... -depth ... | cpio")). */ - file_hdr.c_name = add_cdf_double_slashes (input_name.ds_string); - file_hdr.c_namesize = strlen (file_hdr.c_name) + 1; - } - else - { - /* We don't mark CDF's in tar files. We assume the "hidden" - directory will always go into the archive before any of - its files. */ - file_hdr.c_name = input_name.ds_string; - file_hdr.c_namesize = strlen (input_name.ds_string) + 1; - } -#endif - - /* Copy the named file to the output. */ - switch (file_hdr.c_mode & CP_IFMT) - { - case CP_IFREG: - if (archive_format == arf_tar || archive_format == arf_ustar) - { - char *otherfile; - if ((otherfile = find_inode_file (file_hdr.c_ino, - file_hdr.c_dev_maj, - file_hdr.c_dev_min))) - { - file_hdr.c_tar_linkname = otherfile; - if (write_out_header (&file_hdr, out_file_des)) - continue; - break; - } - } - if ( (archive_format == arf_newascii || archive_format == arf_crcascii) - && (file_hdr.c_nlink > 1) ) - { - if (last_link (&file_hdr) ) - { - writeout_other_defers (&file_hdr, out_file_des); - } - else - { - add_link_defer (&file_hdr); - break; - } - } - in_file_des = open (orig_file_name, - O_RDONLY | O_BINARY, 0); - if (in_file_des < 0) - { - open_error (orig_file_name); - continue; - } - - if (archive_format == arf_crcascii) - file_hdr.c_chksum = read_for_checksum (in_file_des, - file_hdr.c_filesize, - orig_file_name); - - if (write_out_header (&file_hdr, out_file_des)) - continue; - copy_files_disk_to_tape (in_file_des, - out_file_des, file_hdr.c_filesize, - orig_file_name); - warn_if_file_changed(orig_file_name, file_hdr.c_filesize, - file_hdr.c_mtime); - - if (archive_format == arf_tar || archive_format == arf_ustar) - add_inode (file_hdr.c_ino, orig_file_name, file_hdr.c_dev_maj, - file_hdr.c_dev_min); - - tape_pad_output (out_file_des, file_hdr.c_filesize); - - if (reset_time_flag) - set_file_times (in_file_des, - orig_file_name, - file_stat.st_atime, file_stat.st_mtime); - if (close (in_file_des) < 0) - close_error (orig_file_name); - break; - - case CP_IFDIR: - file_hdr.c_filesize = 0; - if (write_out_header (&file_hdr, out_file_des)) - continue; - break; - - case CP_IFCHR: - case CP_IFBLK: -#ifdef CP_IFSOCK - case CP_IFSOCK: -#endif -#ifdef CP_IFIFO - case CP_IFIFO: -#endif - if (archive_format == arf_tar) - { - error (0, 0, _("%s not dumped: not a regular file"), - orig_file_name); - continue; - } - else if (archive_format == arf_ustar) - { - char *otherfile; - if ((otherfile = find_inode_file (file_hdr.c_ino, - file_hdr.c_dev_maj, - file_hdr.c_dev_min))) - { - /* This file is linked to another file already in the - archive, so write it out as a hard link. */ - file_hdr.c_mode = (file_stat.st_mode & 07777); - file_hdr.c_mode |= CP_IFREG; - file_hdr.c_tar_linkname = otherfile; - if (write_out_header (&file_hdr, out_file_des)) - continue; - break; - } - add_inode (file_hdr.c_ino, orig_file_name, - file_hdr.c_dev_maj, file_hdr.c_dev_min); - } - file_hdr.c_filesize = 0; - if (write_out_header (&file_hdr, out_file_des)) - continue; - break; - -#ifdef CP_IFLNK - case CP_IFLNK: - { - char *link_name = (char *) xmalloc (file_stat.st_size + 1); - int link_size; - - link_size = readlink (orig_file_name, link_name, - file_stat.st_size); - if (link_size < 0) - { - readlink_warn (orig_file_name); - free (link_name); - continue; - } - link_name[link_size] = 0; - cpio_safer_name_suffix (link_name, false, - abs_paths_flag, true); - link_size = strlen (link_name); - file_hdr.c_filesize = link_size; - if (archive_format == arf_tar || archive_format == arf_ustar) - { - if (link_size + 1 > 100) - { - error (0, 0, _("%s: symbolic link too long"), - file_hdr.c_name); - } - else - { - link_name[link_size] = '\0'; - file_hdr.c_tar_linkname = link_name; - if (write_out_header (&file_hdr, out_file_des)) - continue; - } - } - else - { - if (write_out_header (&file_hdr, out_file_des)) - continue; - tape_buffered_write (link_name, out_file_des, link_size); - tape_pad_output (out_file_des, link_size); - } - free (link_name); - } - break; -#endif - - default: - error (0, 0, _("%s: unknown file type"), orig_file_name); - } - - if (verbose_flag) - fprintf (stderr, "%s\n", orig_file_name); - if (dot_flag) - fputc ('.', stderr); - } - } - - free (orig_file_name); - - writeout_final_defers(out_file_des); - /* The collection is complete; append the trailer. */ - file_hdr.c_ino = 0; - file_hdr.c_mode = 0; - file_hdr.c_uid = 0; - file_hdr.c_gid = 0; - file_hdr.c_nlink = 1; /* Must be 1 for crc format. */ - file_hdr.c_dev_maj = 0; - file_hdr.c_dev_min = 0; - file_hdr.c_rdev_maj = 0; - file_hdr.c_rdev_min = 0; - file_hdr.c_mtime = 0; - file_hdr.c_chksum = 0; - - file_hdr.c_filesize = 0; - file_hdr.c_namesize = 11; - file_hdr.c_name = CPIO_TRAILER_NAME; - if (archive_format != arf_tar && archive_format != arf_ustar) - write_out_header (&file_hdr, out_file_des); - else - write_nuls_to_file (1024, out_file_des, tape_buffered_write); - - /* Fill up the output block. */ - tape_clear_rest_of_block (out_file_des); - tape_empty_output_buffer (out_file_des); - if (dot_flag) - fputc ('\n', stderr); - if (!quiet_flag) - { - res = (output_bytes + io_block_size - 1) / io_block_size; - fprintf (stderr, ngettext ("%d block\n", "%d blocks\n", res), res); - } -} - -static int -check_rdev (file_hdr) - struct cpio_file_stat *file_hdr; -{ - if (archive_format == arf_newascii || archive_format == arf_crcascii) - { - if ((file_hdr->c_rdev_maj & 0xFFFFFFFF) != file_hdr->c_rdev_maj) - return 1; - if ((file_hdr->c_rdev_min & 0xFFFFFFFF) != file_hdr->c_rdev_min) - return 2; - } - else if (archive_format == arf_oldascii || archive_format == arf_hpoldascii) - { -#ifndef __MSDOS__ - dev_t rdev; - - rdev = makedev (file_hdr->c_rdev_maj, file_hdr->c_rdev_min); - if (archive_format == arf_oldascii) - { - if ((rdev & 0xFFFF) != rdev) - return 4; - } - else - { - switch (file_hdr->c_mode & CP_IFMT) - { - case CP_IFCHR: - case CP_IFBLK: -#ifdef CP_IFSOCK - case CP_IFSOCK: -#endif -#ifdef CP_IFIFO - case CP_IFIFO: -#endif - /* We could handle one more bit if longs are >= 33 bits. */ - if ((rdev & 037777777777) != rdev) - return 4; - break; - default: - if ((rdev & 0xFFFF) != rdev) - return 4; - break; - } - } -#endif - } - else if (archive_format == arf_tar || archive_format == arf_ustar) - { - /* The major and minor formats are limited to 7 octal digits in ustar - format, and to_oct () adds a gratuitous trailing blank to further - limit the format to 6 octal digits. */ - if ((file_hdr->c_rdev_maj & 0777777) != file_hdr->c_rdev_maj) - return 1; - if ((file_hdr->c_rdev_min & 0777777) != file_hdr->c_rdev_min) - return 2; - } - else - { -#ifndef __MSDOS__ - dev_t rdev; - - rdev = makedev (file_hdr->c_rdev_maj, file_hdr->c_rdev_min); - if (archive_format != arf_hpbinary) - { - if ((rdev & 0xFFFF) != rdev) - return 4; - } - else - { - switch (file_hdr->c_mode & CP_IFMT) - { - case CP_IFCHR: - case CP_IFBLK: -#ifdef CP_IFSOCK - case CP_IFSOCK: -#endif -#ifdef CP_IFIFO - case CP_IFIFO: -#endif - if ((rdev & 0xFFFFFFFF) != rdev) - return 4; - file_hdr->c_filesize = rdev; - rdev = makedev (0, 1); - break; - default: - if ((rdev & 0xFFFF) != rdev) - return 4; - break; - } - } -#endif - } - return 0; -} |