Timo Röhling
3 years ago
parent
550d0a8e15
commit
cdf0d5c8c0
@ -0,0 +1,3 @@
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.. |tutorial_source| replace::
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The tutorial documentation and source code examples can be found in
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the ``Help/guide/tutorial`` directory of the CMake source code tree.
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enable_language(C)
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add_library(lib INTERFACE)
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/dependency.h
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COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/FileSetGeneratedDependency.h.in ${CMAKE_CURRENT_BINARY_DIR}/dependency.h
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VERBATIM
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)
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target_sources(lib PUBLIC FILE_SET HEADERS BASE_DIRS ${CMAKE_CURRENT_BINARY_DIR} FILES ${CMAKE_CURRENT_BINARY_DIR}/dependency.h)
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add_executable(exe dependency.c)
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target_link_libraries(exe PRIVATE lib)
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@ -0,0 +1 @@
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/* empty */
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@ -1,5 +1,5 @@
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^CMake Error at FileSetInstallMissingSetsInterface\.cmake:[0-9]+ \(install\):
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^CMake Error at FileSetInstallMissingSetsInterface\.cmake:[0-9]+ \(install\):
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install TARGETS target lib1 is exported but not all of its file sets are
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install TARGETS target lib1 is exported but not all of its interface file
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installed
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sets are installed
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Call Stack \(most recent call first\):
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Call Stack \(most recent call first\):
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CMakeLists\.txt:[0-9]+ \(include\)$
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CMakeLists\.txt:[0-9]+ \(include\)$
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@ -0,0 +1,6 @@
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#include <dependency.h>
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int main(void)
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{
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return 0;
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}
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@ -0,0 +1,42 @@
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if(NOT version)
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message(FATAL_ERROR "Pass -Dversion=")
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endif()
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# Name of the archive and its top-level directory.
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set(archive_name "cmake-${version}-tutorial-source")
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# Base directory for CMake Documentation.
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set(help_dir "${CMAKE_CURRENT_LIST_DIR}/../../Help")
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cmake_path(ABSOLUTE_PATH help_dir NORMALIZE)
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# Collect the non-documentation part of the tutorial directory.
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file(COPY "${help_dir}/guide/tutorial/"
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DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/${archive_name}"
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NO_SOURCE_PERMISSIONS
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PATTERN *.rst EXCLUDE
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PATTERN source.txt EXCLUDE
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)
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/${archive_name}/README.txt" [[
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This directory contains source code examples for the CMake Tutorial.
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Each step has its own subdirectory containing code that may be used as a
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starting point. The tutorial examples are progressive so that each step
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provides the complete solution for the previous step.
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]])
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# Create an archive containing the tutorial source examples.
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file(MAKE_DIRECTORY "${help_dir}/_generated")
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file(ARCHIVE_CREATE
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OUTPUT "${help_dir}/_generated/${archive_name}.zip"
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PATHS "${CMAKE_CURRENT_BINARY_DIR}/${archive_name}"
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FORMAT zip
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)
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# Write a reStructuredText snippet included from the tutorial index.
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file(WRITE "${help_dir}/guide/tutorial/source.txt" "
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.. |tutorial_source| replace::
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The tutorial source code examples are available in
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:download:`this archive </_generated/${archive_name}.zip>`.
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")
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# Remove temporary directory.
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file(REMOVE_RECURSE "${CMAKE_CURRENT_BINARY_DIR}/${archive_name}")
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@ -1 +1 @@
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3005001
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3005003
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@ -1,500 +1,10 @@
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/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* Copyright (c) 2011-2012 Michihiro NAKAJIMA
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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__FBSDID("$FreeBSD: head/lib/libarchive/archive_write_set_format_cpio.c 201170 2009-12-29 06:34:23Z kientzle $");
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "archive.h"
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#include "archive.h"
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#include "archive_entry.h"
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#include "archive_entry_locale.h"
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#include "archive_private.h"
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#include "archive_write_private.h"
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#include "archive_write_set_format_private.h"
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static ssize_t archive_write_cpio_data(struct archive_write *,
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const void *buff, size_t s);
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static int archive_write_cpio_close(struct archive_write *);
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static int archive_write_cpio_free(struct archive_write *);
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static int archive_write_cpio_finish_entry(struct archive_write *);
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static int archive_write_cpio_header(struct archive_write *,
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struct archive_entry *);
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static int archive_write_cpio_options(struct archive_write *,
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const char *, const char *);
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static int format_octal(int64_t, void *, int);
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static int64_t format_octal_recursive(int64_t, char *, int);
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static int write_header(struct archive_write *, struct archive_entry *);
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struct cpio {
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uint64_t entry_bytes_remaining;
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int64_t ino_next;
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struct { int64_t old; int new;} *ino_list;
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size_t ino_list_size;
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size_t ino_list_next;
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struct archive_string_conv *opt_sconv;
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struct archive_string_conv *sconv_default;
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int init_default_conversion;
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};
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#define c_magic_offset 0
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#define c_magic_size 6
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#define c_dev_offset 6
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#define c_dev_size 6
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#define c_ino_offset 12
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#define c_ino_size 6
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#define c_mode_offset 18
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#define c_mode_size 6
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#define c_uid_offset 24
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#define c_uid_size 6
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#define c_gid_offset 30
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#define c_gid_size 6
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#define c_nlink_offset 36
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#define c_nlink_size 6
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#define c_rdev_offset 42
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#define c_rdev_size 6
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#define c_mtime_offset 48
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#define c_mtime_size 11
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#define c_namesize_offset 59
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#define c_namesize_size 6
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#define c_filesize_offset 65
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#define c_filesize_size 11
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/*
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/*
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* Set output format to 'cpio' format.
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* Set output format to the default 'cpio' format.
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*/
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*/
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int
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int
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archive_write_set_format_cpio(struct archive *_a)
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archive_write_set_format_cpio(struct archive *_a)
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{
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{
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struct archive_write *a = (struct archive_write *)_a;
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return archive_write_set_format_cpio_odc(_a);
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struct cpio *cpio;
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archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
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ARCHIVE_STATE_NEW, "archive_write_set_format_cpio");
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/* If someone else was already registered, unregister them. */
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if (a->format_free != NULL)
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(a->format_free)(a);
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cpio = (struct cpio *)calloc(1, sizeof(*cpio));
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if (cpio == NULL) {
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archive_set_error(&a->archive, ENOMEM, "Can't allocate cpio data");
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return (ARCHIVE_FATAL);
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}
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a->format_data = cpio;
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a->format_name = "cpio";
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a->format_options = archive_write_cpio_options;
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a->format_write_header = archive_write_cpio_header;
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a->format_write_data = archive_write_cpio_data;
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a->format_finish_entry = archive_write_cpio_finish_entry;
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a->format_close = archive_write_cpio_close;
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a->format_free = archive_write_cpio_free;
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a->archive.archive_format = ARCHIVE_FORMAT_CPIO_POSIX;
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a->archive.archive_format_name = "POSIX cpio";
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return (ARCHIVE_OK);
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}
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static int
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archive_write_cpio_options(struct archive_write *a, const char *key,
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const char *val)
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{
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struct cpio *cpio = (struct cpio *)a->format_data;
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int ret = ARCHIVE_FAILED;
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if (strcmp(key, "hdrcharset") == 0) {
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if (val == NULL || val[0] == 0)
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archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
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"%s: hdrcharset option needs a character-set name",
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a->format_name);
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else {
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cpio->opt_sconv = archive_string_conversion_to_charset(
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&a->archive, val, 0);
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if (cpio->opt_sconv != NULL)
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ret = ARCHIVE_OK;
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else
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ret = ARCHIVE_FATAL;
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}
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return (ret);
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}
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/* Note: The "warn" return is just to inform the options
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* supervisor that we didn't handle it. It will generate
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* a suitable error if no one used this option. */
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return (ARCHIVE_WARN);
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}
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/*
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* Ino values are as long as 64 bits on some systems; cpio format
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* only allows 18 bits and relies on the ino values to identify hardlinked
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* files. So, we can't merely "hash" the ino numbers since collisions
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* would corrupt the archive. Instead, we generate synthetic ino values
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* to store in the archive and maintain a map of original ino values to
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* synthetic ones so we can preserve hardlink information.
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*
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* TODO: Make this more efficient. It's not as bad as it looks (most
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* files don't have any hardlinks and we don't do any work here for those),
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* but it wouldn't be hard to do better.
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*
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* TODO: Work with dev/ino pairs here instead of just ino values.
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*/
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static int
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synthesize_ino_value(struct cpio *cpio, struct archive_entry *entry)
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{
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int64_t ino = archive_entry_ino64(entry);
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int ino_new;
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size_t i;
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/*
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* If no index number was given, don't assign one. In
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* particular, this handles the end-of-archive marker
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* correctly by giving it a zero index value. (This is also
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* why we start our synthetic index numbers with one below.)
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*/
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if (ino == 0)
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return (0);
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/* Don't store a mapping if we don't need to. */
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if (archive_entry_nlink(entry) < 2) {
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return (int)(++cpio->ino_next);
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}
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/* Look up old ino; if we have it, this is a hardlink
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* and we reuse the same value. */
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for (i = 0; i < cpio->ino_list_next; ++i) {
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if (cpio->ino_list[i].old == ino)
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return (cpio->ino_list[i].new);
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}
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/* Assign a new index number. */
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ino_new = (int)(++cpio->ino_next);
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/* Ensure space for the new mapping. */
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if (cpio->ino_list_size <= cpio->ino_list_next) {
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size_t newsize = cpio->ino_list_size < 512
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? 512 : cpio->ino_list_size * 2;
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void *newlist = realloc(cpio->ino_list,
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sizeof(cpio->ino_list[0]) * newsize);
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if (newlist == NULL)
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return (-1);
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cpio->ino_list_size = newsize;
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cpio->ino_list = newlist;
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}
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/* Record and return the new value. */
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cpio->ino_list[cpio->ino_list_next].old = ino;
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cpio->ino_list[cpio->ino_list_next].new = ino_new;
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++cpio->ino_list_next;
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return (ino_new);
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}
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static struct archive_string_conv *
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get_sconv(struct archive_write *a)
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{
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struct cpio *cpio;
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struct archive_string_conv *sconv;
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cpio = (struct cpio *)a->format_data;
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sconv = cpio->opt_sconv;
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||||||
if (sconv == NULL) {
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|
||||||
if (!cpio->init_default_conversion) {
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cpio->sconv_default =
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archive_string_default_conversion_for_write(
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&(a->archive));
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cpio->init_default_conversion = 1;
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}
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sconv = cpio->sconv_default;
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||||||
}
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return (sconv);
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}
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static int
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archive_write_cpio_header(struct archive_write *a, struct archive_entry *entry)
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{
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const char *path;
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size_t len;
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if (archive_entry_filetype(entry) == 0 && archive_entry_hardlink(entry) == NULL) {
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archive_set_error(&a->archive, -1, "Filetype required");
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return (ARCHIVE_FAILED);
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}
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if (archive_entry_pathname_l(entry, &path, &len, get_sconv(a)) != 0
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&& errno == ENOMEM) {
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archive_set_error(&a->archive, ENOMEM,
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"Can't allocate memory for Pathname");
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return (ARCHIVE_FATAL);
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}
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if (len == 0 || path == NULL || path[0] == '\0') {
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archive_set_error(&a->archive, -1, "Pathname required");
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return (ARCHIVE_FAILED);
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||||||
}
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||||||
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||||||
if (!archive_entry_size_is_set(entry) || archive_entry_size(entry) < 0) {
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archive_set_error(&a->archive, -1, "Size required");
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return (ARCHIVE_FAILED);
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||||||
}
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return write_header(a, entry);
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}
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static int
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write_header(struct archive_write *a, struct archive_entry *entry)
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||||||
{
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struct cpio *cpio;
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const char *p, *path;
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int pathlength, ret, ret_final;
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int64_t ino;
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char h[76];
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struct archive_string_conv *sconv;
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struct archive_entry *entry_main;
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size_t len;
|
|
||||||
|
|
||||||
cpio = (struct cpio *)a->format_data;
|
|
||||||
ret_final = ARCHIVE_OK;
|
|
||||||
sconv = get_sconv(a);
|
|
||||||
|
|
||||||
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
||||||
/* Make sure the path separators in pathname, hardlink and symlink
|
|
||||||
* are all slash '/', not the Windows path separator '\'. */
|
|
||||||
entry_main = __la_win_entry_in_posix_pathseparator(entry);
|
|
||||||
if (entry_main == NULL) {
|
|
||||||
archive_set_error(&a->archive, ENOMEM,
|
|
||||||
"Can't allocate ustar data");
|
|
||||||
return(ARCHIVE_FATAL);
|
|
||||||
}
|
|
||||||
if (entry != entry_main)
|
|
||||||
entry = entry_main;
|
|
||||||
else
|
|
||||||
entry_main = NULL;
|
|
||||||
#else
|
|
||||||
entry_main = NULL;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
ret = archive_entry_pathname_l(entry, &path, &len, sconv);
|
|
||||||
if (ret != 0) {
|
|
||||||
if (errno == ENOMEM) {
|
|
||||||
archive_set_error(&a->archive, ENOMEM,
|
|
||||||
"Can't allocate memory for Pathname");
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
|
|
||||||
"Can't translate pathname '%s' to %s",
|
|
||||||
archive_entry_pathname(entry),
|
|
||||||
archive_string_conversion_charset_name(sconv));
|
|
||||||
ret_final = ARCHIVE_WARN;
|
|
||||||
}
|
|
||||||
/* Include trailing null. */
|
|
||||||
pathlength = (int)len + 1;
|
|
||||||
|
|
||||||
memset(h, 0, sizeof(h));
|
|
||||||
format_octal(070707, h + c_magic_offset, c_magic_size);
|
|
||||||
format_octal(archive_entry_dev(entry), h + c_dev_offset, c_dev_size);
|
|
||||||
|
|
||||||
ino = synthesize_ino_value(cpio, entry);
|
|
||||||
if (ino < 0) {
|
|
||||||
archive_set_error(&a->archive, ENOMEM,
|
|
||||||
"No memory for ino translation table");
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
} else if (ino > 0777777) {
|
|
||||||
archive_set_error(&a->archive, ERANGE,
|
|
||||||
"Too many files for this cpio format");
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
format_octal(ino & 0777777, h + c_ino_offset, c_ino_size);
|
|
||||||
|
|
||||||
/* TODO: Set ret_final to ARCHIVE_WARN if any of these overflow. */
|
|
||||||
format_octal(archive_entry_mode(entry), h + c_mode_offset, c_mode_size);
|
|
||||||
format_octal(archive_entry_uid(entry), h + c_uid_offset, c_uid_size);
|
|
||||||
format_octal(archive_entry_gid(entry), h + c_gid_offset, c_gid_size);
|
|
||||||
format_octal(archive_entry_nlink(entry), h + c_nlink_offset, c_nlink_size);
|
|
||||||
if (archive_entry_filetype(entry) == AE_IFBLK
|
|
||||||
|| archive_entry_filetype(entry) == AE_IFCHR)
|
|
||||||
format_octal(archive_entry_rdev(entry), h + c_rdev_offset, c_rdev_size);
|
|
||||||
else
|
|
||||||
format_octal(0, h + c_rdev_offset, c_rdev_size);
|
|
||||||
format_octal(archive_entry_mtime(entry), h + c_mtime_offset, c_mtime_size);
|
|
||||||
format_octal(pathlength, h + c_namesize_offset, c_namesize_size);
|
|
||||||
|
|
||||||
/* Non-regular files don't store bodies. */
|
|
||||||
if (archive_entry_filetype(entry) != AE_IFREG)
|
|
||||||
archive_entry_set_size(entry, 0);
|
|
||||||
|
|
||||||
/* Symlinks get the link written as the body of the entry. */
|
|
||||||
ret = archive_entry_symlink_l(entry, &p, &len, sconv);
|
|
||||||
if (ret != 0) {
|
|
||||||
if (errno == ENOMEM) {
|
|
||||||
archive_set_error(&a->archive, ENOMEM,
|
|
||||||
"Can't allocate memory for Linkname");
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
|
|
||||||
"Can't translate linkname '%s' to %s",
|
|
||||||
archive_entry_symlink(entry),
|
|
||||||
archive_string_conversion_charset_name(sconv));
|
|
||||||
ret_final = ARCHIVE_WARN;
|
|
||||||
}
|
|
||||||
if (len > 0 && p != NULL && *p != '\0')
|
|
||||||
ret = format_octal(strlen(p), h + c_filesize_offset,
|
|
||||||
c_filesize_size);
|
|
||||||
else
|
|
||||||
ret = format_octal(archive_entry_size(entry),
|
|
||||||
h + c_filesize_offset, c_filesize_size);
|
|
||||||
if (ret) {
|
|
||||||
archive_set_error(&a->archive, ERANGE,
|
|
||||||
"File is too large for cpio format.");
|
|
||||||
ret_final = ARCHIVE_FAILED;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = __archive_write_output(a, h, sizeof(h));
|
|
||||||
if (ret != ARCHIVE_OK) {
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = __archive_write_output(a, path, pathlength);
|
|
||||||
if (ret != ARCHIVE_OK) {
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
|
|
||||||
cpio->entry_bytes_remaining = archive_entry_size(entry);
|
|
||||||
|
|
||||||
/* Write the symlink now. */
|
|
||||||
if (p != NULL && *p != '\0') {
|
|
||||||
ret = __archive_write_output(a, p, strlen(p));
|
|
||||||
if (ret != ARCHIVE_OK) {
|
|
||||||
ret_final = ARCHIVE_FATAL;
|
|
||||||
goto exit_write_header;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
exit_write_header:
|
|
||||||
archive_entry_free(entry_main);
|
|
||||||
return (ret_final);
|
|
||||||
}
|
|
||||||
|
|
||||||
static ssize_t
|
|
||||||
archive_write_cpio_data(struct archive_write *a, const void *buff, size_t s)
|
|
||||||
{
|
|
||||||
struct cpio *cpio;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
cpio = (struct cpio *)a->format_data;
|
|
||||||
if (s > cpio->entry_bytes_remaining)
|
|
||||||
s = (size_t)cpio->entry_bytes_remaining;
|
|
||||||
|
|
||||||
ret = __archive_write_output(a, buff, s);
|
|
||||||
cpio->entry_bytes_remaining -= s;
|
|
||||||
if (ret >= 0)
|
|
||||||
return (s);
|
|
||||||
else
|
|
||||||
return (ret);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Format a number into the specified field.
|
|
||||||
*/
|
|
||||||
static int
|
|
||||||
format_octal(int64_t v, void *p, int digits)
|
|
||||||
{
|
|
||||||
int64_t max;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
max = (((int64_t)1) << (digits * 3)) - 1;
|
|
||||||
if (v >= 0 && v <= max) {
|
|
||||||
format_octal_recursive(v, (char *)p, digits);
|
|
||||||
ret = 0;
|
|
||||||
} else {
|
|
||||||
format_octal_recursive(max, (char *)p, digits);
|
|
||||||
ret = -1;
|
|
||||||
}
|
|
||||||
return (ret);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int64_t
|
|
||||||
format_octal_recursive(int64_t v, char *p, int s)
|
|
||||||
{
|
|
||||||
if (s == 0)
|
|
||||||
return (v);
|
|
||||||
v = format_octal_recursive(v, p+1, s-1);
|
|
||||||
*p = '0' + ((char)v & 7);
|
|
||||||
return (v >> 3);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int
|
|
||||||
archive_write_cpio_close(struct archive_write *a)
|
|
||||||
{
|
|
||||||
int er;
|
|
||||||
struct archive_entry *trailer;
|
|
||||||
|
|
||||||
trailer = archive_entry_new2(NULL);
|
|
||||||
/* nlink = 1 here for GNU cpio compat. */
|
|
||||||
archive_entry_set_nlink(trailer, 1);
|
|
||||||
archive_entry_set_size(trailer, 0);
|
|
||||||
archive_entry_set_pathname(trailer, "TRAILER!!!");
|
|
||||||
er = write_header(a, trailer);
|
|
||||||
archive_entry_free(trailer);
|
|
||||||
return (er);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int
|
|
||||||
archive_write_cpio_free(struct archive_write *a)
|
|
||||||
{
|
|
||||||
struct cpio *cpio;
|
|
||||||
|
|
||||||
cpio = (struct cpio *)a->format_data;
|
|
||||||
free(cpio->ino_list);
|
|
||||||
free(cpio);
|
|
||||||
a->format_data = NULL;
|
|
||||||
return (ARCHIVE_OK);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int
|
|
||||||
archive_write_cpio_finish_entry(struct archive_write *a)
|
|
||||||
{
|
|
||||||
struct cpio *cpio;
|
|
||||||
|
|
||||||
cpio = (struct cpio *)a->format_data;
|
|
||||||
return (__archive_write_nulls(a,
|
|
||||||
(size_t)cpio->entry_bytes_remaining));
|
|
||||||
}
|
}
|
||||||
|
|||||||
@ -0,0 +1,610 @@
|
|||||||
|
/*-
|
||||||
|
* Copyright (c) 2003-2007 Tim Kientzle
|
||||||
|
* Copyright (c) 2011-2012 Michihiro NAKAJIMA
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
|
||||||
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||||
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||||
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "archive_platform.h"
|
||||||
|
__FBSDID("$FreeBSD: head/lib/libarchive/archive_write_set_format_cpio.c 201170 2009-12-29 06:34:23Z kientzle $");
|
||||||
|
|
||||||
|
#ifdef HAVE_ERRNO_H
|
||||||
|
#include <errno.h>
|
||||||
|
#endif
|
||||||
|
#include <stdio.h>
|
||||||
|
#ifdef HAVE_STDLIB_H
|
||||||
|
#include <stdlib.h>
|
||||||
|
#endif
|
||||||
|
#ifdef HAVE_STRING_H
|
||||||
|
#include <string.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "archive.h"
|
||||||
|
#include "archive_entry.h"
|
||||||
|
#include "archive_entry_locale.h"
|
||||||
|
#include "archive_private.h"
|
||||||
|
#include "archive_write_private.h"
|
||||||
|
#include "archive_write_set_format_private.h"
|
||||||
|
|
||||||
|
static ssize_t archive_write_binary_data(struct archive_write *,
|
||||||
|
const void *buff, size_t s);
|
||||||
|
static int archive_write_binary_close(struct archive_write *);
|
||||||
|
static int archive_write_binary_free(struct archive_write *);
|
||||||
|
static int archive_write_binary_finish_entry(struct archive_write *);
|
||||||
|
static int archive_write_binary_header(struct archive_write *,
|
||||||
|
struct archive_entry *);
|
||||||
|
static int archive_write_binary_options(struct archive_write *,
|
||||||
|
const char *, const char *);
|
||||||
|
static int write_header(struct archive_write *, struct archive_entry *);
|
||||||
|
|
||||||
|
struct cpio {
|
||||||
|
uint64_t entry_bytes_remaining;
|
||||||
|
|
||||||
|
int64_t ino_next;
|
||||||
|
|
||||||
|
struct { int64_t old; int new;} *ino_list;
|
||||||
|
size_t ino_list_size;
|
||||||
|
size_t ino_list_next;
|
||||||
|
|
||||||
|
struct archive_string_conv *opt_sconv;
|
||||||
|
struct archive_string_conv *sconv_default;
|
||||||
|
int init_default_conversion;
|
||||||
|
};
|
||||||
|
|
||||||
|
/* This struct needs to be packed to get the header right */
|
||||||
|
|
||||||
|
#if defined(__GNUC__)
|
||||||
|
#define PACKED(x) x __attribute__((packed))
|
||||||
|
#elif defined(_MSC_VER)
|
||||||
|
#define PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
|
||||||
|
#else
|
||||||
|
#define PACKED(x) x
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define HSIZE 26
|
||||||
|
|
||||||
|
PACKED(struct cpio_binary_header {
|
||||||
|
uint16_t h_magic;
|
||||||
|
uint16_t h_dev;
|
||||||
|
uint16_t h_ino;
|
||||||
|
uint16_t h_mode;
|
||||||
|
uint16_t h_uid;
|
||||||
|
uint16_t h_gid;
|
||||||
|
uint16_t h_nlink;
|
||||||
|
uint16_t h_majmin;
|
||||||
|
uint32_t h_mtime;
|
||||||
|
uint16_t h_namesize;
|
||||||
|
uint32_t h_filesize;
|
||||||
|
});
|
||||||
|
|
||||||
|
/* Back in the day, the 7th Edition cpio.c had this, to
|
||||||
|
* adapt to, as the comment said, "VAX, Interdata, ...":
|
||||||
|
*
|
||||||
|
* union { long l; short s[2]; char c[4]; } U;
|
||||||
|
* #define MKSHORT(v,lv) {U.l=1L;if(U.c[0]) U.l=lv,v[0]=U.s[1],v[1]=U.s[0]; else U.l=lv,v[0]=U.s[0],v[1]=U.s[1];}
|
||||||
|
* long mklong(v)
|
||||||
|
* short v[];
|
||||||
|
* {
|
||||||
|
* U.l = 1;
|
||||||
|
* if(U.c[0])
|
||||||
|
* U.s[0] = v[1], U.s[1] = v[0];
|
||||||
|
* else
|
||||||
|
* U.s[0] = v[0], U.s[1] = v[1];
|
||||||
|
* return U.l;
|
||||||
|
* }
|
||||||
|
*
|
||||||
|
* Of course, that assumes that all machines have little-endian shorts,
|
||||||
|
* and just adapts the others to the special endianness of the PDP-11.
|
||||||
|
*
|
||||||
|
* Now, we could do this:
|
||||||
|
*
|
||||||
|
* union { uint32_t l; uint16_t s[2]; uint8_t c[4]; } U;
|
||||||
|
* #define PUTI16(v,sv) {U.s[0]=1;if(U.c[0]) v=sv; else U.s[0]=sv,U.c[2]=U.c[1],U.c[3]=U.c[0],v=U.s[1];}
|
||||||
|
* #define PUTI32(v,lv) {char_t Ut;U.l=1;if(U.c[0]) U.l=lv,v[0]=U.s[1],v[1]=U.s[0]; else U.l=lv,Ut=U.c[0],U.c[0]=U.c[1],U.c[1]=Ut,Ut=U.c[2],U.c[2]=U.c[3],U.c[3]=Ut,v[0]=U.s[0],v[1]=U.s[1];}
|
||||||
|
*
|
||||||
|
* ...but it feels a little better to do it like this:
|
||||||
|
*/
|
||||||
|
|
||||||
|
static uint16_t swap16(uint16_t in) {
|
||||||
|
union {
|
||||||
|
uint16_t s[2];
|
||||||
|
uint8_t c[4];
|
||||||
|
} U;
|
||||||
|
U.s[0] = 1;
|
||||||
|
if (U.c[0])
|
||||||
|
return in;
|
||||||
|
else {
|
||||||
|
U.s[0] = in;
|
||||||
|
U.c[2] = U.c[1];
|
||||||
|
U.c[3] = U.c[0];
|
||||||
|
return U.s[1];
|
||||||
|
}
|
||||||
|
/* NOTREACHED */
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t swap32(uint32_t in) {
|
||||||
|
union {
|
||||||
|
uint32_t l;
|
||||||
|
uint16_t s[2];
|
||||||
|
uint8_t c[4];
|
||||||
|
} U;
|
||||||
|
U.l = 1;
|
||||||
|
if (U.c[0]) { /* Little-endian */
|
||||||
|
uint16_t t;
|
||||||
|
U.l = in;
|
||||||
|
t = U.s[0];
|
||||||
|
U.s[0] = U.s[1];
|
||||||
|
U.s[1] = t;
|
||||||
|
} else if (U.c[3]) { /* Big-endian */
|
||||||
|
U.l = in;
|
||||||
|
U.s[0] = swap16(U.s[0]);
|
||||||
|
U.s[1] = swap16(U.s[1]);
|
||||||
|
} else { /* PDP-endian */
|
||||||
|
U.l = in;
|
||||||
|
}
|
||||||
|
return U.l;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set output format to the selected binary variant
|
||||||
|
*/
|
||||||
|
static int
|
||||||
|
archive_write_set_format_cpio_binary(struct archive *_a, int format)
|
||||||
|
{
|
||||||
|
struct archive_write *a = (struct archive_write *)_a;
|
||||||
|
struct cpio *cpio;
|
||||||
|
|
||||||
|
if (sizeof(struct cpio_binary_header) != HSIZE) {
|
||||||
|
archive_set_error(&a->archive, EINVAL,
|
||||||
|
"Binary cpio format not supported on this platform");
|
||||||
|
return (ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
|
||||||
|
archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
|
||||||
|
ARCHIVE_STATE_NEW, "archive_write_set_format_cpio_binary");
|
||||||
|
|
||||||
|
/* If someone else was already registered, unregister them. */
|
||||||
|
if (a->format_free != NULL)
|
||||||
|
(a->format_free)(a);
|
||||||
|
|
||||||
|
cpio = (struct cpio *)calloc(1, sizeof(*cpio));
|
||||||
|
if (cpio == NULL) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM, "Can't allocate cpio data");
|
||||||
|
return (ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
a->format_data = cpio;
|
||||||
|
a->format_name = "cpio";
|
||||||
|
a->format_options = archive_write_binary_options;
|
||||||
|
a->format_write_header = archive_write_binary_header;
|
||||||
|
a->format_write_data = archive_write_binary_data;
|
||||||
|
a->format_finish_entry = archive_write_binary_finish_entry;
|
||||||
|
a->format_close = archive_write_binary_close;
|
||||||
|
a->format_free = archive_write_binary_free;
|
||||||
|
a->archive.archive_format = format;
|
||||||
|
switch (format) {
|
||||||
|
case ARCHIVE_FORMAT_CPIO_PWB:
|
||||||
|
a->archive.archive_format_name = "PWB cpio";
|
||||||
|
break;
|
||||||
|
case ARCHIVE_FORMAT_CPIO_BIN_LE:
|
||||||
|
a->archive.archive_format_name = "7th Edition cpio";
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
archive_set_error(&a->archive, EINVAL, "binary format must be 'pwb' or 'bin'");
|
||||||
|
return (ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
return (ARCHIVE_OK);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set output format to PWB (6th Edition) binary format
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
archive_write_set_format_cpio_pwb(struct archive *_a)
|
||||||
|
{
|
||||||
|
return archive_write_set_format_cpio_binary(_a, ARCHIVE_FORMAT_CPIO_PWB);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set output format to 7th Edition binary format
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
archive_write_set_format_cpio_bin(struct archive *_a)
|
||||||
|
{
|
||||||
|
return archive_write_set_format_cpio_binary(_a, ARCHIVE_FORMAT_CPIO_BIN_LE);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_binary_options(struct archive_write *a, const char *key,
|
||||||
|
const char *val)
|
||||||
|
{
|
||||||
|
struct cpio *cpio = (struct cpio *)a->format_data;
|
||||||
|
int ret = ARCHIVE_FAILED;
|
||||||
|
|
||||||
|
if (strcmp(key, "hdrcharset") == 0) {
|
||||||
|
if (val == NULL || val[0] == 0)
|
||||||
|
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
|
||||||
|
"%s: hdrcharset option needs a character-set name",
|
||||||
|
a->format_name);
|
||||||
|
else {
|
||||||
|
cpio->opt_sconv = archive_string_conversion_to_charset(
|
||||||
|
&a->archive, val, 0);
|
||||||
|
if (cpio->opt_sconv != NULL)
|
||||||
|
ret = ARCHIVE_OK;
|
||||||
|
else
|
||||||
|
ret = ARCHIVE_FATAL;
|
||||||
|
}
|
||||||
|
return (ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Note: The "warn" return is just to inform the options
|
||||||
|
* supervisor that we didn't handle it. It will generate
|
||||||
|
* a suitable error if no one used this option. */
|
||||||
|
return (ARCHIVE_WARN);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Ino values are as long as 64 bits on some systems; cpio format
|
||||||
|
* only allows 16 bits and relies on the ino values to identify hardlinked
|
||||||
|
* files. So, we can't merely "hash" the ino numbers since collisions
|
||||||
|
* would corrupt the archive. Instead, we generate synthetic ino values
|
||||||
|
* to store in the archive and maintain a map of original ino values to
|
||||||
|
* synthetic ones so we can preserve hardlink information.
|
||||||
|
*
|
||||||
|
* TODO: Make this more efficient. It's not as bad as it looks (most
|
||||||
|
* files don't have any hardlinks and we don't do any work here for those),
|
||||||
|
* but it wouldn't be hard to do better.
|
||||||
|
*
|
||||||
|
* TODO: Work with dev/ino pairs here instead of just ino values.
|
||||||
|
*/
|
||||||
|
static int
|
||||||
|
synthesize_ino_value(struct cpio *cpio, struct archive_entry *entry)
|
||||||
|
{
|
||||||
|
int64_t ino = archive_entry_ino64(entry);
|
||||||
|
int ino_new;
|
||||||
|
size_t i;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If no index number was given, don't assign one. In
|
||||||
|
* particular, this handles the end-of-archive marker
|
||||||
|
* correctly by giving it a zero index value. (This is also
|
||||||
|
* why we start our synthetic index numbers with one below.)
|
||||||
|
*/
|
||||||
|
if (ino == 0)
|
||||||
|
return (0);
|
||||||
|
|
||||||
|
/* Don't store a mapping if we don't need to. */
|
||||||
|
if (archive_entry_nlink(entry) < 2) {
|
||||||
|
return (int)(++cpio->ino_next);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Look up old ino; if we have it, this is a hardlink
|
||||||
|
* and we reuse the same value. */
|
||||||
|
for (i = 0; i < cpio->ino_list_next; ++i) {
|
||||||
|
if (cpio->ino_list[i].old == ino)
|
||||||
|
return (cpio->ino_list[i].new);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Assign a new index number. */
|
||||||
|
ino_new = (int)(++cpio->ino_next);
|
||||||
|
|
||||||
|
/* Ensure space for the new mapping. */
|
||||||
|
if (cpio->ino_list_size <= cpio->ino_list_next) {
|
||||||
|
size_t newsize = cpio->ino_list_size < 512
|
||||||
|
? 512 : cpio->ino_list_size * 2;
|
||||||
|
void *newlist = realloc(cpio->ino_list,
|
||||||
|
sizeof(cpio->ino_list[0]) * newsize);
|
||||||
|
if (newlist == NULL)
|
||||||
|
return (-1);
|
||||||
|
|
||||||
|
cpio->ino_list_size = newsize;
|
||||||
|
cpio->ino_list = newlist;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Record and return the new value. */
|
||||||
|
cpio->ino_list[cpio->ino_list_next].old = ino;
|
||||||
|
cpio->ino_list[cpio->ino_list_next].new = ino_new;
|
||||||
|
++cpio->ino_list_next;
|
||||||
|
return (ino_new);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static struct archive_string_conv *
|
||||||
|
get_sconv(struct archive_write *a)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
struct archive_string_conv *sconv;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
sconv = cpio->opt_sconv;
|
||||||
|
if (sconv == NULL) {
|
||||||
|
if (!cpio->init_default_conversion) {
|
||||||
|
cpio->sconv_default =
|
||||||
|
archive_string_default_conversion_for_write(
|
||||||
|
&(a->archive));
|
||||||
|
cpio->init_default_conversion = 1;
|
||||||
|
}
|
||||||
|
sconv = cpio->sconv_default;
|
||||||
|
}
|
||||||
|
return (sconv);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_binary_header(struct archive_write *a, struct archive_entry *entry)
|
||||||
|
{
|
||||||
|
const char *path;
|
||||||
|
size_t len;
|
||||||
|
|
||||||
|
if (archive_entry_filetype(entry) == 0 && archive_entry_hardlink(entry) == NULL) {
|
||||||
|
archive_set_error(&a->archive, -1, "Filetype required");
|
||||||
|
return (ARCHIVE_FAILED);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (archive_entry_pathname_l(entry, &path, &len, get_sconv(a)) != 0
|
||||||
|
&& errno == ENOMEM) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate memory for Pathname");
|
||||||
|
return (ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
if (len == 0 || path == NULL || path[0] == '\0') {
|
||||||
|
archive_set_error(&a->archive, -1, "Pathname required");
|
||||||
|
return (ARCHIVE_FAILED);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!archive_entry_size_is_set(entry) || archive_entry_size(entry) < 0) {
|
||||||
|
archive_set_error(&a->archive, -1, "Size required");
|
||||||
|
return (ARCHIVE_FAILED);
|
||||||
|
}
|
||||||
|
return write_header(a, entry);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
write_header(struct archive_write *a, struct archive_entry *entry)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
const char *p, *path;
|
||||||
|
int pathlength, ret, ret_final;
|
||||||
|
int64_t ino;
|
||||||
|
struct cpio_binary_header h;
|
||||||
|
struct archive_string_conv *sconv;
|
||||||
|
struct archive_entry *entry_main;
|
||||||
|
size_t len;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
ret_final = ARCHIVE_OK;
|
||||||
|
sconv = get_sconv(a);
|
||||||
|
|
||||||
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
||||||
|
/* Make sure the path separators in pathname, hardlink and symlink
|
||||||
|
* are all slash '/', not the Windows path separator '\'. */
|
||||||
|
entry_main = __la_win_entry_in_posix_pathseparator(entry);
|
||||||
|
if (entry_main == NULL) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate ustar data");
|
||||||
|
return(ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
if (entry != entry_main)
|
||||||
|
entry = entry_main;
|
||||||
|
else
|
||||||
|
entry_main = NULL;
|
||||||
|
#else
|
||||||
|
entry_main = NULL;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
ret = archive_entry_pathname_l(entry, &path, &len, sconv);
|
||||||
|
if (ret != 0) {
|
||||||
|
if (errno == ENOMEM) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate memory for Pathname");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
|
||||||
|
"Can't translate pathname '%s' to %s",
|
||||||
|
archive_entry_pathname(entry),
|
||||||
|
archive_string_conversion_charset_name(sconv));
|
||||||
|
ret_final = ARCHIVE_WARN;
|
||||||
|
}
|
||||||
|
/* Include trailing null */
|
||||||
|
pathlength = (int)len + 1;
|
||||||
|
|
||||||
|
h.h_magic = swap16(070707);
|
||||||
|
h.h_dev = swap16(archive_entry_dev(entry));
|
||||||
|
|
||||||
|
ino = synthesize_ino_value(cpio, entry);
|
||||||
|
if (ino < 0) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"No memory for ino translation table");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
} else if (ino > 077777) {
|
||||||
|
archive_set_error(&a->archive, ERANGE,
|
||||||
|
"Too many files for this cpio format");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
h.h_ino = swap16(ino);
|
||||||
|
|
||||||
|
h.h_mode = archive_entry_mode(entry);
|
||||||
|
if (((h.h_mode & AE_IFMT) == AE_IFSOCK) || ((h.h_mode & AE_IFMT) == AE_IFIFO)) {
|
||||||
|
archive_set_error(&a->archive, EINVAL,
|
||||||
|
"sockets and fifos cannot be represented in the binary cpio formats");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
if (a->archive.archive_format == ARCHIVE_FORMAT_CPIO_PWB) {
|
||||||
|
if ((h.h_mode & AE_IFMT) == AE_IFLNK) {
|
||||||
|
archive_set_error(&a->archive, EINVAL,
|
||||||
|
"symbolic links cannot be represented in the PWB cpio format");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
/* we could turn off AE_IFREG here, but it does no harm, */
|
||||||
|
/* and allows v7 cpio to read the entry without confusion */
|
||||||
|
}
|
||||||
|
h.h_mode = swap16(h.h_mode);
|
||||||
|
|
||||||
|
h.h_uid = swap16(archive_entry_uid(entry));
|
||||||
|
h.h_gid = swap16(archive_entry_gid(entry));
|
||||||
|
h.h_nlink = swap16(archive_entry_nlink(entry));
|
||||||
|
|
||||||
|
if (archive_entry_filetype(entry) == AE_IFBLK
|
||||||
|
|| archive_entry_filetype(entry) == AE_IFCHR)
|
||||||
|
h.h_majmin = swap16(archive_entry_rdev(entry));
|
||||||
|
else
|
||||||
|
h.h_majmin = 0;
|
||||||
|
|
||||||
|
h.h_mtime = swap32(archive_entry_mtime(entry));
|
||||||
|
h.h_namesize = swap16(pathlength);
|
||||||
|
|
||||||
|
/* Non-regular files don't store bodies. */
|
||||||
|
if (archive_entry_filetype(entry) != AE_IFREG)
|
||||||
|
archive_entry_set_size(entry, 0);
|
||||||
|
|
||||||
|
/* Symlinks get the link written as the body of the entry. */
|
||||||
|
ret = archive_entry_symlink_l(entry, &p, &len, sconv);
|
||||||
|
if (ret != 0) {
|
||||||
|
if (errno == ENOMEM) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate memory for Linkname");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
|
||||||
|
"Can't translate linkname '%s' to %s",
|
||||||
|
archive_entry_symlink(entry),
|
||||||
|
archive_string_conversion_charset_name(sconv));
|
||||||
|
ret_final = ARCHIVE_WARN;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (len > 0 && p != NULL && *p != '\0') {
|
||||||
|
if (a->archive.archive_format == ARCHIVE_FORMAT_CPIO_PWB) {
|
||||||
|
archive_set_error(&a->archive, EINVAL,
|
||||||
|
"symlinks are not supported by UNIX V6 or by PWB cpio");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
h.h_filesize = swap32(strlen(p)); /* symlink */
|
||||||
|
} else {
|
||||||
|
if ((a->archive.archive_format == ARCHIVE_FORMAT_CPIO_PWB) &&
|
||||||
|
(archive_entry_size(entry) > 256*256*256-1)) {
|
||||||
|
archive_set_error(&a->archive, ERANGE,
|
||||||
|
"File is too large for PWB binary cpio format.");
|
||||||
|
ret_final = ARCHIVE_FAILED;
|
||||||
|
goto exit_write_header;
|
||||||
|
} else if (archive_entry_size(entry) > INT32_MAX) {
|
||||||
|
archive_set_error(&a->archive, ERANGE,
|
||||||
|
"File is too large for binary cpio format.");
|
||||||
|
ret_final = ARCHIVE_FAILED;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
h.h_filesize = swap32(archive_entry_size(entry)); /* file */
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = __archive_write_output(a, &h, HSIZE);
|
||||||
|
if (ret != ARCHIVE_OK) {
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = __archive_write_output(a, path, pathlength);
|
||||||
|
if ((ret == ARCHIVE_OK) && ((pathlength % 2) != 0))
|
||||||
|
ret = __archive_write_nulls(a, 1);
|
||||||
|
if (ret != ARCHIVE_OK) {
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
|
||||||
|
cpio->entry_bytes_remaining = archive_entry_size(entry);
|
||||||
|
if ((cpio->entry_bytes_remaining % 2) != 0)
|
||||||
|
cpio->entry_bytes_remaining++;
|
||||||
|
|
||||||
|
/* Write the symlink now. */
|
||||||
|
if (p != NULL && *p != '\0') {
|
||||||
|
ret = __archive_write_output(a, p, strlen(p));
|
||||||
|
if ((ret == ARCHIVE_OK) && ((strlen(p) % 2) != 0))
|
||||||
|
ret = __archive_write_nulls(a, 1);
|
||||||
|
if (ret != ARCHIVE_OK) {
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
exit_write_header:
|
||||||
|
archive_entry_free(entry_main);
|
||||||
|
return (ret_final);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
archive_write_binary_data(struct archive_write *a, const void *buff, size_t s)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
if (s > cpio->entry_bytes_remaining)
|
||||||
|
s = (size_t)cpio->entry_bytes_remaining;
|
||||||
|
|
||||||
|
ret = __archive_write_output(a, buff, s);
|
||||||
|
cpio->entry_bytes_remaining -= s;
|
||||||
|
if (ret >= 0)
|
||||||
|
return (s);
|
||||||
|
else
|
||||||
|
return (ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_binary_close(struct archive_write *a)
|
||||||
|
{
|
||||||
|
int er;
|
||||||
|
struct archive_entry *trailer;
|
||||||
|
|
||||||
|
trailer = archive_entry_new2(NULL);
|
||||||
|
/* nlink = 1 here for GNU cpio compat. */
|
||||||
|
archive_entry_set_nlink(trailer, 1);
|
||||||
|
archive_entry_set_size(trailer, 0);
|
||||||
|
archive_entry_set_pathname(trailer, "TRAILER!!!");
|
||||||
|
er = write_header(a, trailer);
|
||||||
|
archive_entry_free(trailer);
|
||||||
|
return (er);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_binary_free(struct archive_write *a)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
free(cpio->ino_list);
|
||||||
|
free(cpio);
|
||||||
|
a->format_data = NULL;
|
||||||
|
return (ARCHIVE_OK);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_binary_finish_entry(struct archive_write *a)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
return (__archive_write_nulls(a,
|
||||||
|
(size_t)cpio->entry_bytes_remaining));
|
||||||
|
}
|
||||||
@ -0,0 +1,500 @@
|
|||||||
|
/*-
|
||||||
|
* Copyright (c) 2003-2007 Tim Kientzle
|
||||||
|
* Copyright (c) 2011-2012 Michihiro NAKAJIMA
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
|
||||||
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||||
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||||
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "archive_platform.h"
|
||||||
|
__FBSDID("$FreeBSD: head/lib/libarchive/archive_write_set_format_cpio.c 201170 2009-12-29 06:34:23Z kientzle $");
|
||||||
|
|
||||||
|
#ifdef HAVE_ERRNO_H
|
||||||
|
#include <errno.h>
|
||||||
|
#endif
|
||||||
|
#include <stdio.h>
|
||||||
|
#ifdef HAVE_STDLIB_H
|
||||||
|
#include <stdlib.h>
|
||||||
|
#endif
|
||||||
|
#ifdef HAVE_STRING_H
|
||||||
|
#include <string.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "archive.h"
|
||||||
|
#include "archive_entry.h"
|
||||||
|
#include "archive_entry_locale.h"
|
||||||
|
#include "archive_private.h"
|
||||||
|
#include "archive_write_private.h"
|
||||||
|
#include "archive_write_set_format_private.h"
|
||||||
|
|
||||||
|
static ssize_t archive_write_odc_data(struct archive_write *,
|
||||||
|
const void *buff, size_t s);
|
||||||
|
static int archive_write_odc_close(struct archive_write *);
|
||||||
|
static int archive_write_odc_free(struct archive_write *);
|
||||||
|
static int archive_write_odc_finish_entry(struct archive_write *);
|
||||||
|
static int archive_write_odc_header(struct archive_write *,
|
||||||
|
struct archive_entry *);
|
||||||
|
static int archive_write_odc_options(struct archive_write *,
|
||||||
|
const char *, const char *);
|
||||||
|
static int format_octal(int64_t, void *, int);
|
||||||
|
static int64_t format_octal_recursive(int64_t, char *, int);
|
||||||
|
static int write_header(struct archive_write *, struct archive_entry *);
|
||||||
|
|
||||||
|
struct cpio {
|
||||||
|
uint64_t entry_bytes_remaining;
|
||||||
|
|
||||||
|
int64_t ino_next;
|
||||||
|
|
||||||
|
struct { int64_t old; int new;} *ino_list;
|
||||||
|
size_t ino_list_size;
|
||||||
|
size_t ino_list_next;
|
||||||
|
|
||||||
|
struct archive_string_conv *opt_sconv;
|
||||||
|
struct archive_string_conv *sconv_default;
|
||||||
|
int init_default_conversion;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define c_magic_offset 0
|
||||||
|
#define c_magic_size 6
|
||||||
|
#define c_dev_offset 6
|
||||||
|
#define c_dev_size 6
|
||||||
|
#define c_ino_offset 12
|
||||||
|
#define c_ino_size 6
|
||||||
|
#define c_mode_offset 18
|
||||||
|
#define c_mode_size 6
|
||||||
|
#define c_uid_offset 24
|
||||||
|
#define c_uid_size 6
|
||||||
|
#define c_gid_offset 30
|
||||||
|
#define c_gid_size 6
|
||||||
|
#define c_nlink_offset 36
|
||||||
|
#define c_nlink_size 6
|
||||||
|
#define c_rdev_offset 42
|
||||||
|
#define c_rdev_size 6
|
||||||
|
#define c_mtime_offset 48
|
||||||
|
#define c_mtime_size 11
|
||||||
|
#define c_namesize_offset 59
|
||||||
|
#define c_namesize_size 6
|
||||||
|
#define c_filesize_offset 65
|
||||||
|
#define c_filesize_size 11
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set output format to 'cpio' format.
|
||||||
|
*/
|
||||||
|
int
|
||||||
|
archive_write_set_format_cpio_odc(struct archive *_a)
|
||||||
|
{
|
||||||
|
struct archive_write *a = (struct archive_write *)_a;
|
||||||
|
struct cpio *cpio;
|
||||||
|
|
||||||
|
archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
|
||||||
|
ARCHIVE_STATE_NEW, "archive_write_set_format_cpio_odc");
|
||||||
|
|
||||||
|
/* If someone else was already registered, unregister them. */
|
||||||
|
if (a->format_free != NULL)
|
||||||
|
(a->format_free)(a);
|
||||||
|
|
||||||
|
cpio = (struct cpio *)calloc(1, sizeof(*cpio));
|
||||||
|
if (cpio == NULL) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM, "Can't allocate cpio data");
|
||||||
|
return (ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
a->format_data = cpio;
|
||||||
|
a->format_name = "cpio";
|
||||||
|
a->format_options = archive_write_odc_options;
|
||||||
|
a->format_write_header = archive_write_odc_header;
|
||||||
|
a->format_write_data = archive_write_odc_data;
|
||||||
|
a->format_finish_entry = archive_write_odc_finish_entry;
|
||||||
|
a->format_close = archive_write_odc_close;
|
||||||
|
a->format_free = archive_write_odc_free;
|
||||||
|
a->archive.archive_format = ARCHIVE_FORMAT_CPIO_POSIX;
|
||||||
|
a->archive.archive_format_name = "POSIX cpio";
|
||||||
|
return (ARCHIVE_OK);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_odc_options(struct archive_write *a, const char *key,
|
||||||
|
const char *val)
|
||||||
|
{
|
||||||
|
struct cpio *cpio = (struct cpio *)a->format_data;
|
||||||
|
int ret = ARCHIVE_FAILED;
|
||||||
|
|
||||||
|
if (strcmp(key, "hdrcharset") == 0) {
|
||||||
|
if (val == NULL || val[0] == 0)
|
||||||
|
archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
|
||||||
|
"%s: hdrcharset option needs a character-set name",
|
||||||
|
a->format_name);
|
||||||
|
else {
|
||||||
|
cpio->opt_sconv = archive_string_conversion_to_charset(
|
||||||
|
&a->archive, val, 0);
|
||||||
|
if (cpio->opt_sconv != NULL)
|
||||||
|
ret = ARCHIVE_OK;
|
||||||
|
else
|
||||||
|
ret = ARCHIVE_FATAL;
|
||||||
|
}
|
||||||
|
return (ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Note: The "warn" return is just to inform the options
|
||||||
|
* supervisor that we didn't handle it. It will generate
|
||||||
|
* a suitable error if no one used this option. */
|
||||||
|
return (ARCHIVE_WARN);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Ino values are as long as 64 bits on some systems; cpio format
|
||||||
|
* only allows 18 bits and relies on the ino values to identify hardlinked
|
||||||
|
* files. So, we can't merely "hash" the ino numbers since collisions
|
||||||
|
* would corrupt the archive. Instead, we generate synthetic ino values
|
||||||
|
* to store in the archive and maintain a map of original ino values to
|
||||||
|
* synthetic ones so we can preserve hardlink information.
|
||||||
|
*
|
||||||
|
* TODO: Make this more efficient. It's not as bad as it looks (most
|
||||||
|
* files don't have any hardlinks and we don't do any work here for those),
|
||||||
|
* but it wouldn't be hard to do better.
|
||||||
|
*
|
||||||
|
* TODO: Work with dev/ino pairs here instead of just ino values.
|
||||||
|
*/
|
||||||
|
static int
|
||||||
|
synthesize_ino_value(struct cpio *cpio, struct archive_entry *entry)
|
||||||
|
{
|
||||||
|
int64_t ino = archive_entry_ino64(entry);
|
||||||
|
int ino_new;
|
||||||
|
size_t i;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If no index number was given, don't assign one. In
|
||||||
|
* particular, this handles the end-of-archive marker
|
||||||
|
* correctly by giving it a zero index value. (This is also
|
||||||
|
* why we start our synthetic index numbers with one below.)
|
||||||
|
*/
|
||||||
|
if (ino == 0)
|
||||||
|
return (0);
|
||||||
|
|
||||||
|
/* Don't store a mapping if we don't need to. */
|
||||||
|
if (archive_entry_nlink(entry) < 2) {
|
||||||
|
return (int)(++cpio->ino_next);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Look up old ino; if we have it, this is a hardlink
|
||||||
|
* and we reuse the same value. */
|
||||||
|
for (i = 0; i < cpio->ino_list_next; ++i) {
|
||||||
|
if (cpio->ino_list[i].old == ino)
|
||||||
|
return (cpio->ino_list[i].new);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Assign a new index number. */
|
||||||
|
ino_new = (int)(++cpio->ino_next);
|
||||||
|
|
||||||
|
/* Ensure space for the new mapping. */
|
||||||
|
if (cpio->ino_list_size <= cpio->ino_list_next) {
|
||||||
|
size_t newsize = cpio->ino_list_size < 512
|
||||||
|
? 512 : cpio->ino_list_size * 2;
|
||||||
|
void *newlist = realloc(cpio->ino_list,
|
||||||
|
sizeof(cpio->ino_list[0]) * newsize);
|
||||||
|
if (newlist == NULL)
|
||||||
|
return (-1);
|
||||||
|
|
||||||
|
cpio->ino_list_size = newsize;
|
||||||
|
cpio->ino_list = newlist;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Record and return the new value. */
|
||||||
|
cpio->ino_list[cpio->ino_list_next].old = ino;
|
||||||
|
cpio->ino_list[cpio->ino_list_next].new = ino_new;
|
||||||
|
++cpio->ino_list_next;
|
||||||
|
return (ino_new);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static struct archive_string_conv *
|
||||||
|
get_sconv(struct archive_write *a)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
struct archive_string_conv *sconv;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
sconv = cpio->opt_sconv;
|
||||||
|
if (sconv == NULL) {
|
||||||
|
if (!cpio->init_default_conversion) {
|
||||||
|
cpio->sconv_default =
|
||||||
|
archive_string_default_conversion_for_write(
|
||||||
|
&(a->archive));
|
||||||
|
cpio->init_default_conversion = 1;
|
||||||
|
}
|
||||||
|
sconv = cpio->sconv_default;
|
||||||
|
}
|
||||||
|
return (sconv);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_odc_header(struct archive_write *a, struct archive_entry *entry)
|
||||||
|
{
|
||||||
|
const char *path;
|
||||||
|
size_t len;
|
||||||
|
|
||||||
|
if (archive_entry_filetype(entry) == 0 && archive_entry_hardlink(entry) == NULL) {
|
||||||
|
archive_set_error(&a->archive, -1, "Filetype required");
|
||||||
|
return (ARCHIVE_FAILED);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (archive_entry_pathname_l(entry, &path, &len, get_sconv(a)) != 0
|
||||||
|
&& errno == ENOMEM) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate memory for Pathname");
|
||||||
|
return (ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
if (len == 0 || path == NULL || path[0] == '\0') {
|
||||||
|
archive_set_error(&a->archive, -1, "Pathname required");
|
||||||
|
return (ARCHIVE_FAILED);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!archive_entry_size_is_set(entry) || archive_entry_size(entry) < 0) {
|
||||||
|
archive_set_error(&a->archive, -1, "Size required");
|
||||||
|
return (ARCHIVE_FAILED);
|
||||||
|
}
|
||||||
|
return write_header(a, entry);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
write_header(struct archive_write *a, struct archive_entry *entry)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
const char *p, *path;
|
||||||
|
int pathlength, ret, ret_final;
|
||||||
|
int64_t ino;
|
||||||
|
char h[76];
|
||||||
|
struct archive_string_conv *sconv;
|
||||||
|
struct archive_entry *entry_main;
|
||||||
|
size_t len;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
ret_final = ARCHIVE_OK;
|
||||||
|
sconv = get_sconv(a);
|
||||||
|
|
||||||
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
||||||
|
/* Make sure the path separators in pathname, hardlink and symlink
|
||||||
|
* are all slash '/', not the Windows path separator '\'. */
|
||||||
|
entry_main = __la_win_entry_in_posix_pathseparator(entry);
|
||||||
|
if (entry_main == NULL) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate ustar data");
|
||||||
|
return(ARCHIVE_FATAL);
|
||||||
|
}
|
||||||
|
if (entry != entry_main)
|
||||||
|
entry = entry_main;
|
||||||
|
else
|
||||||
|
entry_main = NULL;
|
||||||
|
#else
|
||||||
|
entry_main = NULL;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
ret = archive_entry_pathname_l(entry, &path, &len, sconv);
|
||||||
|
if (ret != 0) {
|
||||||
|
if (errno == ENOMEM) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate memory for Pathname");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
|
||||||
|
"Can't translate pathname '%s' to %s",
|
||||||
|
archive_entry_pathname(entry),
|
||||||
|
archive_string_conversion_charset_name(sconv));
|
||||||
|
ret_final = ARCHIVE_WARN;
|
||||||
|
}
|
||||||
|
/* Include trailing null. */
|
||||||
|
pathlength = (int)len + 1;
|
||||||
|
|
||||||
|
memset(h, 0, sizeof(h));
|
||||||
|
format_octal(070707, h + c_magic_offset, c_magic_size);
|
||||||
|
format_octal(archive_entry_dev(entry), h + c_dev_offset, c_dev_size);
|
||||||
|
|
||||||
|
ino = synthesize_ino_value(cpio, entry);
|
||||||
|
if (ino < 0) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"No memory for ino translation table");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
} else if (ino > 0777777) {
|
||||||
|
archive_set_error(&a->archive, ERANGE,
|
||||||
|
"Too many files for this cpio format");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
format_octal(ino & 0777777, h + c_ino_offset, c_ino_size);
|
||||||
|
|
||||||
|
/* TODO: Set ret_final to ARCHIVE_WARN if any of these overflow. */
|
||||||
|
format_octal(archive_entry_mode(entry), h + c_mode_offset, c_mode_size);
|
||||||
|
format_octal(archive_entry_uid(entry), h + c_uid_offset, c_uid_size);
|
||||||
|
format_octal(archive_entry_gid(entry), h + c_gid_offset, c_gid_size);
|
||||||
|
format_octal(archive_entry_nlink(entry), h + c_nlink_offset, c_nlink_size);
|
||||||
|
if (archive_entry_filetype(entry) == AE_IFBLK
|
||||||
|
|| archive_entry_filetype(entry) == AE_IFCHR)
|
||||||
|
format_octal(archive_entry_rdev(entry), h + c_rdev_offset, c_rdev_size);
|
||||||
|
else
|
||||||
|
format_octal(0, h + c_rdev_offset, c_rdev_size);
|
||||||
|
format_octal(archive_entry_mtime(entry), h + c_mtime_offset, c_mtime_size);
|
||||||
|
format_octal(pathlength, h + c_namesize_offset, c_namesize_size);
|
||||||
|
|
||||||
|
/* Non-regular files don't store bodies. */
|
||||||
|
if (archive_entry_filetype(entry) != AE_IFREG)
|
||||||
|
archive_entry_set_size(entry, 0);
|
||||||
|
|
||||||
|
/* Symlinks get the link written as the body of the entry. */
|
||||||
|
ret = archive_entry_symlink_l(entry, &p, &len, sconv);
|
||||||
|
if (ret != 0) {
|
||||||
|
if (errno == ENOMEM) {
|
||||||
|
archive_set_error(&a->archive, ENOMEM,
|
||||||
|
"Can't allocate memory for Linkname");
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
|
||||||
|
"Can't translate linkname '%s' to %s",
|
||||||
|
archive_entry_symlink(entry),
|
||||||
|
archive_string_conversion_charset_name(sconv));
|
||||||
|
ret_final = ARCHIVE_WARN;
|
||||||
|
}
|
||||||
|
if (len > 0 && p != NULL && *p != '\0')
|
||||||
|
ret = format_octal(strlen(p), h + c_filesize_offset,
|
||||||
|
c_filesize_size);
|
||||||
|
else
|
||||||
|
ret = format_octal(archive_entry_size(entry),
|
||||||
|
h + c_filesize_offset, c_filesize_size);
|
||||||
|
if (ret) {
|
||||||
|
archive_set_error(&a->archive, ERANGE,
|
||||||
|
"File is too large for cpio format.");
|
||||||
|
ret_final = ARCHIVE_FAILED;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = __archive_write_output(a, h, sizeof(h));
|
||||||
|
if (ret != ARCHIVE_OK) {
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = __archive_write_output(a, path, pathlength);
|
||||||
|
if (ret != ARCHIVE_OK) {
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
|
||||||
|
cpio->entry_bytes_remaining = archive_entry_size(entry);
|
||||||
|
|
||||||
|
/* Write the symlink now. */
|
||||||
|
if (p != NULL && *p != '\0') {
|
||||||
|
ret = __archive_write_output(a, p, strlen(p));
|
||||||
|
if (ret != ARCHIVE_OK) {
|
||||||
|
ret_final = ARCHIVE_FATAL;
|
||||||
|
goto exit_write_header;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
exit_write_header:
|
||||||
|
archive_entry_free(entry_main);
|
||||||
|
return (ret_final);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t
|
||||||
|
archive_write_odc_data(struct archive_write *a, const void *buff, size_t s)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
if (s > cpio->entry_bytes_remaining)
|
||||||
|
s = (size_t)cpio->entry_bytes_remaining;
|
||||||
|
|
||||||
|
ret = __archive_write_output(a, buff, s);
|
||||||
|
cpio->entry_bytes_remaining -= s;
|
||||||
|
if (ret >= 0)
|
||||||
|
return (s);
|
||||||
|
else
|
||||||
|
return (ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Format a number into the specified field.
|
||||||
|
*/
|
||||||
|
static int
|
||||||
|
format_octal(int64_t v, void *p, int digits)
|
||||||
|
{
|
||||||
|
int64_t max;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
max = (((int64_t)1) << (digits * 3)) - 1;
|
||||||
|
if (v >= 0 && v <= max) {
|
||||||
|
format_octal_recursive(v, (char *)p, digits);
|
||||||
|
ret = 0;
|
||||||
|
} else {
|
||||||
|
format_octal_recursive(max, (char *)p, digits);
|
||||||
|
ret = -1;
|
||||||
|
}
|
||||||
|
return (ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int64_t
|
||||||
|
format_octal_recursive(int64_t v, char *p, int s)
|
||||||
|
{
|
||||||
|
if (s == 0)
|
||||||
|
return (v);
|
||||||
|
v = format_octal_recursive(v, p+1, s-1);
|
||||||
|
*p = '0' + ((char)v & 7);
|
||||||
|
return (v >> 3);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_odc_close(struct archive_write *a)
|
||||||
|
{
|
||||||
|
int er;
|
||||||
|
struct archive_entry *trailer;
|
||||||
|
|
||||||
|
trailer = archive_entry_new2(NULL);
|
||||||
|
/* nlink = 1 here for GNU cpio compat. */
|
||||||
|
archive_entry_set_nlink(trailer, 1);
|
||||||
|
archive_entry_set_size(trailer, 0);
|
||||||
|
archive_entry_set_pathname(trailer, "TRAILER!!!");
|
||||||
|
er = write_header(a, trailer);
|
||||||
|
archive_entry_free(trailer);
|
||||||
|
return (er);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_odc_free(struct archive_write *a)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
free(cpio->ino_list);
|
||||||
|
free(cpio);
|
||||||
|
a->format_data = NULL;
|
||||||
|
return (ARCHIVE_OK);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
archive_write_odc_finish_entry(struct archive_write *a)
|
||||||
|
{
|
||||||
|
struct cpio *cpio;
|
||||||
|
|
||||||
|
cpio = (struct cpio *)a->format_data;
|
||||||
|
return (__archive_write_nulls(a,
|
||||||
|
(size_t)cpio->entry_bytes_remaining));
|
||||||
|
}
|
||||||
Loading…
Reference in new issue