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📁 ..
📄 archive.h(51.93 KB)
📄 archive_acl.c(51.2 KB)
📄 archive_acl_private.h(3.13 KB)
📄 archive_blake2.h(6.32 KB)
📄 archive_blake2_impl.h(4.12 KB)
📄 archive_blake2s_ref.c(9.46 KB)
📄 archive_blake2sp_ref.c(9.11 KB)
📄 archive_check_magic.c(4.7 KB)
📄 archive_cmdline.c(5.21 KB)
📄 archive_cmdline_private.h(1.82 KB)
📄 archive_crc32.h(2.97 KB)
📄 archive_cryptor.c(13.46 KB)
📄 archive_cryptor_private.h(6.02 KB)
📄 archive_digest.c(28.79 KB)
📄 archive_digest_private.h(13.88 KB)
📄 archive_disk_acl_freebsd.c(18.86 KB)
📄 archive_endian.h(5.28 KB)
📄 archive_entry.3(4.85 KB)
📄 archive_entry.c(53.48 KB)
📄 archive_entry.h(32.79 KB)
📄 archive_entry_acl.3(14.32 KB)
📄 archive_entry_copy_stat.c(3.73 KB)
📄 archive_entry_link_resolver.c(11.74 KB)
📄 archive_entry_linkify.3(5.9 KB)
📄 archive_entry_locale.h(4.41 KB)
📄 archive_entry_misc.3(2.47 KB)
📄 archive_entry_paths.3(5.53 KB)
📄 archive_entry_perms.3(7.59 KB)
📄 archive_entry_private.h(6.09 KB)
📄 archive_entry_sparse.c(3.95 KB)
📄 archive_entry_stat.3(8.1 KB)
📄 archive_entry_stat.c(4.29 KB)
📄 archive_entry_strmode.c(2.6 KB)
📄 archive_entry_time.3(4.5 KB)
📄 archive_entry_xattr.c(3.86 KB)
📄 archive_getdate.c(29.9 KB)
📄 archive_getdate.h(1.56 KB)
📄 archive_hmac.c(7.32 KB)
📄 archive_hmac_private.h(3.59 KB)
📄 archive_match.c(47.14 KB)
📄 archive_openssl_evp_private.h(1.92 KB)
📄 archive_openssl_hmac_private.h(1.98 KB)
📄 archive_options.c(5.22 KB)
📄 archive_options_private.h(2.02 KB)
📄 archive_pack_dev.c(9.13 KB)
📄 archive_pack_dev.h(2.08 KB)
📄 archive_pathmatch.c(10.64 KB)
📄 archive_pathmatch.h(2.09 KB)
📄 archive_platform.h(5.93 KB)
📄 archive_platform_acl.h(2 KB)
📄 archive_platform_xattr.h(1.82 KB)
📄 archive_ppmd7.c(27.63 KB)
📄 archive_ppmd7_private.h(3.01 KB)
📄 archive_ppmd8.c(31.05 KB)
📄 archive_ppmd8_private.h(3.82 KB)
📄 archive_ppmd_private.h(3.31 KB)
📄 archive_private.h(5.56 KB)
📄 archive_random.c(6.67 KB)
📄 archive_random_private.h(1.6 KB)
📄 archive_rb.c(20.84 KB)
📄 archive_rb.h(4.43 KB)
📄 archive_read.3(7.18 KB)
📄 archive_read.c(48.21 KB)
📄 archive_read_add_passphrase.3(2.48 KB)
📄 archive_read_add_passphrase.c(5.21 KB)
📄 archive_read_append_filter.c(6.1 KB)
📄 archive_read_data.3(4.23 KB)
📄 archive_read_data_into_fd.c(3.94 KB)
📄 archive_read_disk.3(10.36 KB)
📄 archive_read_disk_entry_from_file.c(27.96 KB)
📄 archive_read_disk_posix.c(72.18 KB)
📄 archive_read_disk_private.h(3.31 KB)
📄 archive_read_disk_set_standard_lookup.c(8.03 KB)
📄 archive_read_extract.3(4.39 KB)
📄 archive_read_extract.c(2.21 KB)
📄 archive_read_extract2.c(4.5 KB)
📄 archive_read_filter.3(5.56 KB)
📄 archive_read_format.3(5.97 KB)
📄 archive_read_free.3(3.07 KB)
📄 archive_read_header.3(2.97 KB)
📄 archive_read_new.3(2.08 KB)
📄 archive_read_open.3(6.78 KB)
📄 archive_read_open_fd.c(5.92 KB)
📄 archive_read_open_file.c(4.9 KB)
📄 archive_read_open_filename.c(17.56 KB)
📄 archive_read_open_memory.c(5.43 KB)
📄 archive_read_private.h(9.26 KB)
📄 archive_read_set_format.c(3.43 KB)
📄 archive_read_set_options.3(6.53 KB)
📄 archive_read_set_options.c(4.6 KB)
📄 archive_read_support_filter_all.c(3.5 KB)
📄 archive_read_support_filter_by_code.c(2.76 KB)
📄 archive_read_support_filter_bzip2.c(9.93 KB)
📄 archive_read_support_filter_compress.c(13.44 KB)
📄 archive_read_support_filter_grzip.c(3.52 KB)
📄 archive_read_support_filter_gzip.c(13.48 KB)
📄 archive_read_support_filter_lrzip.c(3.79 KB)
📄 archive_read_support_filter_lz4.c(20.26 KB)
📄 archive_read_support_filter_lzop.c(13.59 KB)
📄 archive_read_support_filter_none.c(1.87 KB)
📄 archive_read_support_filter_program.c(13.21 KB)
📄 archive_read_support_filter_rpm.c(6.84 KB)
📄 archive_read_support_filter_uu.c(18.34 KB)
📄 archive_read_support_filter_xz.c(21.51 KB)
📄 archive_read_support_filter_zstd.c(7.59 KB)
📄 archive_read_support_format_7zip.c(97.12 KB)
📄 archive_read_support_format_all.c(3.47 KB)
📄 archive_read_support_format_ar.c(17.4 KB)
📄 archive_read_support_format_by_code.c(2.99 KB)
📄 archive_read_support_format_cab.c(83 KB)
📄 archive_read_support_format_cpio.c(31.93 KB)
📄 archive_read_support_format_empty.c(2.93 KB)
📄 archive_read_support_format_iso9660.c(92.13 KB)
📄 archive_read_support_format_lha.c(83.33 KB)
📄 archive_read_support_format_mtree.c(51.86 KB)
📄 archive_read_support_format_rar.c(84.34 KB)
📄 archive_read_support_format_rar5.c(107.18 KB)
📄 archive_read_support_format_raw.c(5.43 KB)
📄 archive_read_support_format_tar.c(83.23 KB)
📄 archive_read_support_format_warc.c(21.17 KB)
📄 archive_read_support_format_xar.c(79.96 KB)
📄 archive_read_support_format_zip.c(117.12 KB)
📄 archive_string.c(104.04 KB)
📄 archive_string.h(9.26 KB)
📄 archive_string_composition.h(80.15 KB)
📄 archive_string_sprintf.c(5.13 KB)
📄 archive_util.3(6.97 KB)
📄 archive_util.c(14.54 KB)
📄 archive_version_details.c(3.55 KB)
📄 archive_virtual.c(3.95 KB)
📄 archive_write.3(7.32 KB)
📄 archive_write.c(21.65 KB)
📄 archive_write_add_filter.c(2.63 KB)
📄 archive_write_add_filter_b64encode.c(8.41 KB)
📄 archive_write_add_filter_by_name.c(2.65 KB)
📄 archive_write_add_filter_bzip2.c(11.14 KB)
📄 archive_write_add_filter_compress.c(12.62 KB)
📄 archive_write_add_filter_grzip.c(4.22 KB)
📄 archive_write_add_filter_gzip.c(12.34 KB)
📄 archive_write_add_filter_lrzip.c(5.72 KB)
📄 archive_write_add_filter_lz4.c(18.85 KB)
📄 archive_write_add_filter_lzop.c(13.69 KB)
📄 archive_write_add_filter_none.c(1.67 KB)
📄 archive_write_add_filter_program.c(9.77 KB)
📄 archive_write_add_filter_uuencode.c(8.09 KB)
📄 archive_write_add_filter_xz.c(14.97 KB)
📄 archive_write_add_filter_zstd.c(10.7 KB)
📄 archive_write_blocksize.3(4.13 KB)
📄 archive_write_data.3(3.09 KB)
📄 archive_write_disk.3(11.82 KB)
📄 archive_write_disk_posix.c(123.89 KB)
📄 archive_write_disk_private.h(1.77 KB)
📄 archive_write_disk_set_standard_lookup.c(6.91 KB)
📄 archive_write_filter.3(4.47 KB)
📄 archive_write_finish_entry.3(2.67 KB)
📄 archive_write_format.3(5.99 KB)
📄 archive_write_free.3(3.05 KB)
📄 archive_write_header.3(2.44 KB)
📄 archive_write_new.3(2.02 KB)
📄 archive_write_open.3(8.01 KB)
📄 archive_write_open_fd.c(3.9 KB)
📄 archive_write_open_file.c(2.93 KB)
📄 archive_write_open_filename.c(6.85 KB)
📄 archive_write_open_memory.c(3.61 KB)
📄 archive_write_private.h(5.64 KB)
📄 archive_write_set_format.c(4 KB)
📄 archive_write_set_format_7zip.c(55.14 KB)
📄 archive_write_set_format_ar.c(14.08 KB)
📄 archive_write_set_format_by_name.c(3.35 KB)
📄 archive_write_set_format_cpio.c(14.24 KB)
📄 archive_write_set_format_cpio_newc.c(13.11 KB)
📄 archive_write_set_format_filter_by_ext.c(4.67 KB)
📄 archive_write_set_format_gnutar.c(22.62 KB)
📄 archive_write_set_format_iso9660.c(206.67 KB)
📄 archive_write_set_format_mtree.c(58.1 KB)
📄 archive_write_set_format_pax.c(59.85 KB)
📄 archive_write_set_format_private.h(1.71 KB)
📄 archive_write_set_format_raw.c(3.65 KB)
📄 archive_write_set_format_shar.c(16.93 KB)
📄 archive_write_set_format_ustar.c(21.98 KB)
📄 archive_write_set_format_v7tar.c(18.02 KB)
📄 archive_write_set_format_warc.c(11.2 KB)
📄 archive_write_set_format_xar.c(79.49 KB)
📄 archive_write_set_format_zip.c(48.7 KB)
📄 archive_write_set_options.3(21.85 KB)
📄 archive_write_set_options.c(4.07 KB)
📄 archive_write_set_passphrase.3(2.46 KB)
📄 archive_write_set_passphrase.c(2.89 KB)
📄 archive_xxhash.h(1.86 KB)
📄 cpio.5(10.45 KB)
📄 filter_fork.h(1.68 KB)
📄 filter_fork_posix.c(6.18 KB)
📄 libarchive-formats.5(18.29 KB)
📄 libarchive.3(8.02 KB)
📄 libarchive_changes.3(9.95 KB)
📄 libarchive_internals.3(13.36 KB)
📄 tar.5(31 KB)
📁 test
📄 xxhash.c(15.77 KB)

Editing: archive_write_set_format_ar.c

/*-
 * Copyright (c) 2007 Kai Wang
 * Copyright (c) 2007 Tim Kientzle
 * 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
 *    in this position and unchanged.
 * 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("$FreeBSD$");

#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#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_private.h"
#include "archive_write_private.h"
#include "archive_write_set_format_private.h"

struct ar_w {
	uint64_t	 entry_bytes_remaining;
	uint64_t	 entry_padding;
	int		 is_strtab;
	int		 has_strtab;
	char		 wrote_global_header;
	char		*strtab;
};

/*
 * Define structure of the "ar" header.
 */
#define AR_name_offset 0
#define AR_name_size 16
#define AR_date_offset 16
#define AR_date_size 12
#define AR_uid_offset 28
#define AR_uid_size 6
#define AR_gid_offset 34
#define AR_gid_size 6
#define AR_mode_offset 40
#define AR_mode_size 8
#define AR_size_offset 48
#define AR_size_size 10
#define AR_fmag_offset 58
#define AR_fmag_size 2

static int		 archive_write_set_format_ar(struct archive_write *);
static int		 archive_write_ar_header(struct archive_write *,
			     struct archive_entry *);
static ssize_t		 archive_write_ar_data(struct archive_write *,
			     const void *buff, size_t s);
static int		 archive_write_ar_free(struct archive_write *);
static int		 archive_write_ar_close(struct archive_write *);
static int		 archive_write_ar_finish_entry(struct archive_write *);
static const char	*ar_basename(const char *path);
static int		 format_octal(int64_t v, char *p, int s);
static int		 format_decimal(int64_t v, char *p, int s);

int
archive_write_set_format_ar_bsd(struct archive *_a)
{
	struct archive_write *a = (struct archive_write *)_a;
	int r;

archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
	    ARCHIVE_STATE_NEW, "archive_write_set_format_ar_bsd");
	r = archive_write_set_format_ar(a);
	if (r == ARCHIVE_OK) {
		a->archive.archive_format = ARCHIVE_FORMAT_AR_BSD;
		a->archive.archive_format_name = "ar (BSD)";
	}
	return (r);
}

int
archive_write_set_format_ar_svr4(struct archive *_a)
{
	struct archive_write *a = (struct archive_write *)_a;
	int r;

archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
	    ARCHIVE_STATE_NEW, "archive_write_set_format_ar_svr4");
	r = archive_write_set_format_ar(a);
	if (r == ARCHIVE_OK) {
		a->archive.archive_format = ARCHIVE_FORMAT_AR_GNU;
		a->archive.archive_format_name = "ar (GNU/SVR4)";
	}
	return (r);
}

/*
 * Generic initialization.
 */
static int
archive_write_set_format_ar(struct archive_write *a)
{
	struct ar_w *ar;

/* If someone else was already registered, unregister them. */
	if (a->format_free != NULL)
		(a->format_free)(a);

ar = (struct ar_w *)calloc(1, sizeof(*ar));
	if (ar == NULL) {
		archive_set_error(&a->archive, ENOMEM, "Can't allocate ar data");
		return (ARCHIVE_FATAL);
	}
	a->format_data = ar;

a->format_name = "ar";
	a->format_write_header = archive_write_ar_header;
	a->format_write_data = archive_write_ar_data;
	a->format_close = archive_write_ar_close;
	a->format_free = archive_write_ar_free;
	a->format_finish_entry = archive_write_ar_finish_entry;
	return (ARCHIVE_OK);
}

static int
archive_write_ar_header(struct archive_write *a, struct archive_entry *entry)
{
	int ret, append_fn;
	char buff[60];
	char *ss, *se;
	struct ar_w *ar;
	const char *pathname;
	const char *filename;
	int64_t size;

append_fn = 0;
	ar = (struct ar_w *)a->format_data;
	ar->is_strtab = 0;
	filename = NULL;
	size = archive_entry_size(entry);

/*
	 * Reject files with empty name.
	 */
	pathname = archive_entry_pathname(entry);
	if (pathname == NULL || *pathname == '\0') {
		archive_set_error(&a->archive, EINVAL,
		    "Invalid filename");
		return (ARCHIVE_WARN);
	}

/*
	 * If we are now at the beginning of the archive,
	 * we need first write the ar global header.
	 */
	if (!ar->wrote_global_header) {
		__archive_write_output(a, "!<arch>\n", 8);
		ar->wrote_global_header = 1;
	}

memset(buff, ' ', 60);
	memcpy(&buff[AR_fmag_offset], "`\n", 2);

if (strcmp(pathname, "/") == 0 ) {
		/* Entry is archive symbol table in GNU format */
		buff[AR_name_offset] = '/';
		goto stat;
	}
	if (strcmp(pathname, "/SYM64/") == 0) {
		/* Entry is archive symbol table in GNU 64-bit format */
		memcpy(buff + AR_name_offset, "/SYM64/", 7);
		goto stat;
	}
	if (strcmp(pathname, "__.SYMDEF") == 0) {
		/* Entry is archive symbol table in BSD format */
		memcpy(buff + AR_name_offset, "__.SYMDEF", 9);
		goto stat;
	}
	if (strcmp(pathname, "//") == 0) {
		/*
		 * Entry is archive filename table, inform that we should
		 * collect strtab in next _data call.
		 */
		ar->is_strtab = 1;
		buff[AR_name_offset] = buff[AR_name_offset + 1] = '/';
		/*
		 * For archive string table, only ar_size field should
		 * be set.
		 */
		goto size;
	}

/*
	 * Otherwise, entry is a normal archive member.
	 * Strip leading paths from filenames, if any.
	 */
	if ((filename = ar_basename(pathname)) == NULL) {
		/* Reject filenames with trailing "/" */
		archive_set_error(&a->archive, EINVAL,
		    "Invalid filename");
		return (ARCHIVE_WARN);
	}

if (a->archive.archive_format == ARCHIVE_FORMAT_AR_GNU) {
		/*
		 * SVR4/GNU variant use a "/" to mark then end of the filename,
		 * make it possible to have embedded spaces in the filename.
		 * So, the longest filename here (without extension) is
		 * actually 15 bytes.
		 */
		if (strlen(filename) <= 15) {
			memcpy(&buff[AR_name_offset],
			    filename, strlen(filename));
			buff[AR_name_offset + strlen(filename)] = '/';
		} else {
			/*
			 * For filename longer than 15 bytes, GNU variant
			 * makes use of a string table and instead stores the
			 * offset of the real filename to in the ar_name field.
			 * The string table should have been written before.
			 */
			if (ar->has_strtab <= 0) {
				archive_set_error(&a->archive, EINVAL,
				    "Can't find string table");
				return (ARCHIVE_WARN);
			}

se = (char *)malloc(strlen(filename) + 3);
			if (se == NULL) {
				archive_set_error(&a->archive, ENOMEM,
				    "Can't allocate filename buffer");
				return (ARCHIVE_FATAL);
			}

memcpy(se, filename, strlen(filename));
			strcpy(se + strlen(filename), "/\n");

ss = strstr(ar->strtab, se);
			free(se);

if (ss == NULL) {
				archive_set_error(&a->archive, EINVAL,
				    "Invalid string table");
				return (ARCHIVE_WARN);
			}

/*
			 * GNU variant puts "/" followed by digits into
			 * ar_name field. These digits indicates the real
			 * filename string's offset to the string table.
			 */
			buff[AR_name_offset] = '/';
			if (format_decimal(ss - ar->strtab,
			    buff + AR_name_offset + 1,
			    AR_name_size - 1)) {
				archive_set_error(&a->archive, ERANGE,
				    "string table offset too large");
				return (ARCHIVE_WARN);
			}
		}
	} else if (a->archive.archive_format == ARCHIVE_FORMAT_AR_BSD) {
		/*
		 * BSD variant: for any file name which is more than
		 * 16 chars or contains one or more embedded space(s), the
		 * string "#1/" followed by the ASCII length of the name is
		 * put into the ar_name field. The file size (stored in the
		 * ar_size field) is incremented by the length of the name.
		 * The name is then written immediately following the
		 * archive header.
		 */
		if (strlen(filename) <= 16 && strchr(filename, ' ') == NULL) {
			memcpy(&buff[AR_name_offset], filename, strlen(filename));
			buff[AR_name_offset + strlen(filename)] = ' ';
		}
		else {
			memcpy(buff + AR_name_offset, "#1/", 3);
			if (format_decimal(strlen(filename),
			    buff + AR_name_offset + 3,
			    AR_name_size - 3)) {
				archive_set_error(&a->archive, ERANGE,
				    "File name too long");
				return (ARCHIVE_WARN);
			}
			append_fn = 1;
			size += strlen(filename);
		}
	}

stat:
	if (format_decimal(archive_entry_mtime(entry), buff + AR_date_offset, AR_date_size)) {
		archive_set_error(&a->archive, ERANGE,
		    "File modification time too large");
		return (ARCHIVE_WARN);
	}
	if (format_decimal(archive_entry_uid(entry), buff + AR_uid_offset, AR_uid_size)) {
		archive_set_error(&a->archive, ERANGE,
		    "Numeric user ID too large");
		return (ARCHIVE_WARN);
	}
	if (format_decimal(archive_entry_gid(entry), buff + AR_gid_offset, AR_gid_size)) {
		archive_set_error(&a->archive, ERANGE,
		    "Numeric group ID too large");
		return (ARCHIVE_WARN);
	}
	if (format_octal(archive_entry_mode(entry), buff + AR_mode_offset, AR_mode_size)) {
		archive_set_error(&a->archive, ERANGE,
		    "Numeric mode too large");
		return (ARCHIVE_WARN);
	}
	/*
	 * Sanity Check: A non-pseudo archive member should always be
	 * a regular file.
	 */
	if (filename != NULL && archive_entry_filetype(entry) != AE_IFREG) {
		archive_set_error(&a->archive, EINVAL,
		    "Regular file required for non-pseudo member");
		return (ARCHIVE_WARN);
	}

size:
	if (format_decimal(size, buff + AR_size_offset, AR_size_size)) {
		archive_set_error(&a->archive, ERANGE,
		    "File size out of range");
		return (ARCHIVE_WARN);
	}

ret = __archive_write_output(a, buff, 60);
	if (ret != ARCHIVE_OK)
		return (ret);

ar->entry_bytes_remaining = size;
	ar->entry_padding = ar->entry_bytes_remaining % 2;

if (append_fn > 0) {
		ret = __archive_write_output(a, filename, strlen(filename));
		if (ret != ARCHIVE_OK)
			return (ret);
		ar->entry_bytes_remaining -= strlen(filename);
	}

return (ARCHIVE_OK);
}

static ssize_t
archive_write_ar_data(struct archive_write *a, const void *buff, size_t s)
{
	struct ar_w *ar;
	int ret;

ar = (struct ar_w *)a->format_data;
	if (s > ar->entry_bytes_remaining)
		s = (size_t)ar->entry_bytes_remaining;

if (ar->is_strtab > 0) {
		if (ar->has_strtab > 0) {
			archive_set_error(&a->archive, EINVAL,
			    "More than one string tables exist");
			return (ARCHIVE_WARN);
		}

ar->strtab = (char *)malloc(s + 1);
		if (ar->strtab == NULL) {
			archive_set_error(&a->archive, ENOMEM,
			    "Can't allocate strtab buffer");
			return (ARCHIVE_FATAL);
		}
		memcpy(ar->strtab, buff, s);
		ar->strtab[s] = '\0';
		ar->has_strtab = 1;
	}

ret = __archive_write_output(a, buff, s);
	if (ret != ARCHIVE_OK)
		return (ret);

ar->entry_bytes_remaining -= s;
	return (s);
}

static int
archive_write_ar_free(struct archive_write *a)
{
	struct ar_w *ar;

ar = (struct ar_w *)a->format_data;

if (ar == NULL)
		return (ARCHIVE_OK);

if (ar->has_strtab > 0) {
		free(ar->strtab);
		ar->strtab = NULL;
	}

free(ar);
	a->format_data = NULL;
	return (ARCHIVE_OK);
}

static int
archive_write_ar_close(struct archive_write *a)
{
	struct ar_w *ar;
	int ret;

/*
	 * If we haven't written anything yet, we need to write
	 * the ar global header now to make it a valid ar archive.
	 */
	ar = (struct ar_w *)a->format_data;
	if (!ar->wrote_global_header) {
		ar->wrote_global_header = 1;
		ret = __archive_write_output(a, "!<arch>\n", 8);
		return (ret);
	}

return (ARCHIVE_OK);
}

static int
archive_write_ar_finish_entry(struct archive_write *a)
{
	struct ar_w *ar;
	int ret;

ar = (struct ar_w *)a->format_data;

if (ar->entry_bytes_remaining != 0) {
		archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
		    "Entry remaining bytes larger than 0");
		return (ARCHIVE_WARN);
	}

if (ar->entry_padding == 0) {
		return (ARCHIVE_OK);
	}

if (ar->entry_padding != 1) {
		archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
		    "Padding wrong size: %ju should be 1 or 0",
		    (uintmax_t)ar->entry_padding);
		return (ARCHIVE_WARN);
	}

ret = __archive_write_output(a, "\n", 1);
	return (ret);
}

/*
 * Format a number into the specified field using base-8.
 * NB: This version is slightly different from the one in
 * _ustar.c
 */
static int
format_octal(int64_t v, char *p, int s)
{
	int len;
	char *h;

len = s;
	h = p;

/* Octal values can't be negative, so use 0. */
	if (v < 0) {
		while (len-- > 0)
			*p++ = '0';
		return (-1);
	}

p += s;		/* Start at the end and work backwards. */
	do {
		*--p = (char)('0' + (v & 7));
		v >>= 3;
	} while (--s > 0 && v > 0);

if (v == 0) {
		memmove(h, p, len - s);
		p = h + len - s;
		while (s-- > 0)
			*p++ = ' ';
		return (0);
	}
	/* If it overflowed, fill field with max value. */
	while (len-- > 0)
		*p++ = '7';

return (-1);
}

/*
 * Format a number into the specified field using base-10.
 */
static int
format_decimal(int64_t v, char *p, int s)
{
	int len;
	char *h;

len = s;
	h = p;

/* Negative values in ar header are meaningless, so use 0. */
	if (v < 0) {
		while (len-- > 0)
			*p++ = '0';
		return (-1);
	}

p += s;
	do {
		*--p = (char)('0' + (v % 10));
		v /= 10;
	} while (--s > 0 && v > 0);

if (v == 0) {
		memmove(h, p, len - s);
		p = h + len - s;
		while (s-- > 0)
			*p++ = ' ';
		return (0);
	}
	/* If it overflowed, fill field with max value. */
	while (len-- > 0)
		*p++ = '9';

return (-1);
}

static const char *
ar_basename(const char *path)
{
	const char *endp, *startp;

endp = path + strlen(path) - 1;
	/*
	 * For filename with trailing slash(es), we return
	 * NULL indicating an error.
	 */
	if (*endp == '/')
		return (NULL);

/* Find the start of the base */
	startp = endp;
	while (startp > path && *(startp - 1) != '/')
		startp--;
	
	return (startp);
}

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