1228753Smm/*-
2228753Smm * Copyright (c) 2003-2007 Tim Kientzle
3232153Smm * Copyright (c) 2011-2012 Michihiro NAKAJIMA
4228753Smm * All rights reserved.
5228753Smm *
6228753Smm * Redistribution and use in source and binary forms, with or without
7228753Smm * modification, are permitted provided that the following conditions
8228753Smm * are met:
9228753Smm * 1. Redistributions of source code must retain the above copyright
10228753Smm *    notice, this list of conditions and the following disclaimer.
11228753Smm * 2. Redistributions in binary form must reproduce the above copyright
12228753Smm *    notice, this list of conditions and the following disclaimer in the
13228753Smm *    documentation and/or other materials provided with the distribution.
14228753Smm *
15228753Smm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16228753Smm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17228753Smm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18228753Smm * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19228753Smm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20228753Smm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21228753Smm * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22228753Smm * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23228753Smm * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24228753Smm * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25228753Smm */
26228753Smm
27228753Smm#include "archive_platform.h"
28228763Smm__FBSDID("$FreeBSD: releng/10.3/contrib/libarchive/libarchive/archive_write_set_format_cpio.c 238856 2012-07-28 06:38:44Z mm $");
29228753Smm
30228753Smm#ifdef HAVE_ERRNO_H
31228753Smm#include <errno.h>
32228753Smm#endif
33228753Smm#include <stdio.h>
34228753Smm#ifdef HAVE_STDLIB_H
35228753Smm#include <stdlib.h>
36228753Smm#endif
37228753Smm#ifdef HAVE_STRING_H
38228753Smm#include <string.h>
39228753Smm#endif
40228753Smm
41228753Smm#include "archive.h"
42228753Smm#include "archive_entry.h"
43232153Smm#include "archive_entry_locale.h"
44228753Smm#include "archive_private.h"
45228753Smm#include "archive_write_private.h"
46228753Smm
47228753Smmstatic ssize_t	archive_write_cpio_data(struct archive_write *,
48228753Smm		    const void *buff, size_t s);
49232153Smmstatic int	archive_write_cpio_close(struct archive_write *);
50232153Smmstatic int	archive_write_cpio_free(struct archive_write *);
51228753Smmstatic int	archive_write_cpio_finish_entry(struct archive_write *);
52228753Smmstatic int	archive_write_cpio_header(struct archive_write *,
53228753Smm		    struct archive_entry *);
54232153Smmstatic int	archive_write_cpio_options(struct archive_write *,
55232153Smm		    const char *, const char *);
56228753Smmstatic int	format_octal(int64_t, void *, int);
57228753Smmstatic int64_t	format_octal_recursive(int64_t, char *, int);
58232153Smmstatic int	write_header(struct archive_write *, struct archive_entry *);
59228753Smm
60228753Smmstruct cpio {
61228753Smm	uint64_t	  entry_bytes_remaining;
62228753Smm
63228753Smm	int64_t		  ino_next;
64228753Smm
65228753Smm	struct		 { int64_t old; int new;} *ino_list;
66228753Smm	size_t		  ino_list_size;
67228753Smm	size_t		  ino_list_next;
68232153Smm
69232153Smm	struct archive_string_conv *opt_sconv;
70232153Smm	struct archive_string_conv *sconv_default;
71232153Smm	int		  init_default_conversion;
72228753Smm};
73228753Smm
74232153Smm#define	c_magic_offset 0
75232153Smm#define	c_magic_size 6
76232153Smm#define	c_dev_offset 6
77232153Smm#define	c_dev_size 6
78232153Smm#define	c_ino_offset 12
79232153Smm#define	c_ino_size 6
80232153Smm#define	c_mode_offset 18
81232153Smm#define	c_mode_size 6
82232153Smm#define	c_uid_offset 24
83232153Smm#define	c_uid_size 6
84232153Smm#define	c_gid_offset 30
85232153Smm#define	c_gid_size 6
86232153Smm#define	c_nlink_offset 36
87232153Smm#define	c_nlink_size 6
88232153Smm#define	c_rdev_offset 42
89232153Smm#define	c_rdev_size 6
90232153Smm#define	c_mtime_offset 48
91232153Smm#define	c_mtime_size 11
92232153Smm#define	c_namesize_offset 59
93232153Smm#define	c_namesize_size 6
94232153Smm#define	c_filesize_offset 65
95232153Smm#define	c_filesize_size 11
96228911Smm
97228753Smm/*
98228753Smm * Set output format to 'cpio' format.
99228753Smm */
100228753Smmint
101228753Smmarchive_write_set_format_cpio(struct archive *_a)
102228753Smm{
103228753Smm	struct archive_write *a = (struct archive_write *)_a;
104228753Smm	struct cpio *cpio;
105228753Smm
106232153Smm	archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
107232153Smm	    ARCHIVE_STATE_NEW, "archive_write_set_format_cpio");
108232153Smm
109228753Smm	/* If someone else was already registered, unregister them. */
110232153Smm	if (a->format_free != NULL)
111232153Smm		(a->format_free)(a);
112228753Smm
113232153Smm	cpio = (struct cpio *)calloc(1, sizeof(*cpio));
114228753Smm	if (cpio == NULL) {
115228753Smm		archive_set_error(&a->archive, ENOMEM, "Can't allocate cpio data");
116228753Smm		return (ARCHIVE_FATAL);
117228753Smm	}
118228753Smm	a->format_data = cpio;
119228753Smm	a->format_name = "cpio";
120232153Smm	a->format_options = archive_write_cpio_options;
121228753Smm	a->format_write_header = archive_write_cpio_header;
122228753Smm	a->format_write_data = archive_write_cpio_data;
123228753Smm	a->format_finish_entry = archive_write_cpio_finish_entry;
124232153Smm	a->format_close = archive_write_cpio_close;
125232153Smm	a->format_free = archive_write_cpio_free;
126228753Smm	a->archive.archive_format = ARCHIVE_FORMAT_CPIO_POSIX;
127228753Smm	a->archive.archive_format_name = "POSIX cpio";
128228753Smm	return (ARCHIVE_OK);
129228753Smm}
130228753Smm
131232153Smmstatic int
132232153Smmarchive_write_cpio_options(struct archive_write *a, const char *key,
133232153Smm    const char *val)
134232153Smm{
135232153Smm	struct cpio *cpio = (struct cpio *)a->format_data;
136232153Smm	int ret = ARCHIVE_FAILED;
137232153Smm
138232153Smm	if (strcmp(key, "hdrcharset")  == 0) {
139232153Smm		if (val == NULL || val[0] == 0)
140232153Smm			archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
141232153Smm			    "%s: hdrcharset option needs a character-set name",
142232153Smm			    a->format_name);
143232153Smm		else {
144232153Smm			cpio->opt_sconv = archive_string_conversion_to_charset(
145232153Smm			    &a->archive, val, 0);
146232153Smm			if (cpio->opt_sconv != NULL)
147232153Smm				ret = ARCHIVE_OK;
148232153Smm			else
149232153Smm				ret = ARCHIVE_FATAL;
150232153Smm		}
151232153Smm		return (ret);
152232153Smm	}
153232153Smm
154232153Smm	/* Note: The "warn" return is just to inform the options
155232153Smm	 * supervisor that we didn't handle it.  It will generate
156232153Smm	 * a suitable error if no one used this option. */
157232153Smm	return (ARCHIVE_WARN);
158232153Smm}
159232153Smm
160228753Smm/*
161228753Smm * Ino values are as long as 64 bits on some systems; cpio format
162228753Smm * only allows 18 bits and relies on the ino values to identify hardlinked
163228753Smm * files.  So, we can't merely "hash" the ino numbers since collisions
164228753Smm * would corrupt the archive.  Instead, we generate synthetic ino values
165228753Smm * to store in the archive and maintain a map of original ino values to
166228753Smm * synthetic ones so we can preserve hardlink information.
167228753Smm *
168228753Smm * TODO: Make this more efficient.  It's not as bad as it looks (most
169228753Smm * files don't have any hardlinks and we don't do any work here for those),
170228753Smm * but it wouldn't be hard to do better.
171228753Smm *
172228753Smm * TODO: Work with dev/ino pairs here instead of just ino values.
173228753Smm */
174228753Smmstatic int
175228753Smmsynthesize_ino_value(struct cpio *cpio, struct archive_entry *entry)
176228753Smm{
177228753Smm	int64_t ino = archive_entry_ino64(entry);
178228753Smm	int ino_new;
179228753Smm	size_t i;
180228753Smm
181228753Smm	/*
182228753Smm	 * If no index number was given, don't assign one.  In
183228753Smm	 * particular, this handles the end-of-archive marker
184228753Smm	 * correctly by giving it a zero index value.  (This is also
185228753Smm	 * why we start our synthetic index numbers with one below.)
186228753Smm	 */
187228753Smm	if (ino == 0)
188228753Smm		return (0);
189228753Smm
190228753Smm	/* Don't store a mapping if we don't need to. */
191228753Smm	if (archive_entry_nlink(entry) < 2) {
192238856Smm		return (int)(++cpio->ino_next);
193228753Smm	}
194228753Smm
195228753Smm	/* Look up old ino; if we have it, this is a hardlink
196228753Smm	 * and we reuse the same value. */
197228753Smm	for (i = 0; i < cpio->ino_list_next; ++i) {
198228753Smm		if (cpio->ino_list[i].old == ino)
199228753Smm			return (cpio->ino_list[i].new);
200228753Smm	}
201228753Smm
202228753Smm	/* Assign a new index number. */
203238856Smm	ino_new = (int)(++cpio->ino_next);
204228753Smm
205228753Smm	/* Ensure space for the new mapping. */
206228753Smm	if (cpio->ino_list_size <= cpio->ino_list_next) {
207228753Smm		size_t newsize = cpio->ino_list_size < 512
208228753Smm		    ? 512 : cpio->ino_list_size * 2;
209228753Smm		void *newlist = realloc(cpio->ino_list,
210228753Smm		    sizeof(cpio->ino_list[0]) * newsize);
211228753Smm		if (newlist == NULL)
212228753Smm			return (-1);
213228753Smm
214228753Smm		cpio->ino_list_size = newsize;
215228753Smm		cpio->ino_list = newlist;
216228753Smm	}
217228753Smm
218228753Smm	/* Record and return the new value. */
219228753Smm	cpio->ino_list[cpio->ino_list_next].old = ino;
220228753Smm	cpio->ino_list[cpio->ino_list_next].new = ino_new;
221228753Smm	++cpio->ino_list_next;
222228753Smm	return (ino_new);
223228753Smm}
224228753Smm
225232153Smm
226232153Smmstatic struct archive_string_conv *
227232153Smmget_sconv(struct archive_write *a)
228232153Smm{
229232153Smm	struct cpio *cpio;
230232153Smm	struct archive_string_conv *sconv;
231232153Smm
232232153Smm	cpio = (struct cpio *)a->format_data;
233232153Smm	sconv = cpio->opt_sconv;
234232153Smm	if (sconv == NULL) {
235232153Smm		if (!cpio->init_default_conversion) {
236232153Smm			cpio->sconv_default =
237232153Smm			    archive_string_default_conversion_for_write(
238232153Smm			      &(a->archive));
239232153Smm			cpio->init_default_conversion = 1;
240232153Smm		}
241232153Smm		sconv = cpio->sconv_default;
242232153Smm	}
243232153Smm	return (sconv);
244232153Smm}
245232153Smm
246228753Smmstatic int
247228753Smmarchive_write_cpio_header(struct archive_write *a, struct archive_entry *entry)
248228753Smm{
249232153Smm	const char *path;
250232153Smm	size_t len;
251232153Smm
252232153Smm	if (archive_entry_filetype(entry) == 0) {
253232153Smm		archive_set_error(&a->archive, -1, "Filetype required");
254232153Smm		return (ARCHIVE_FAILED);
255232153Smm	}
256232153Smm
257232153Smm	if (archive_entry_pathname_l(entry, &path, &len, get_sconv(a)) != 0
258232153Smm	    && errno == ENOMEM) {
259232153Smm		archive_set_error(&a->archive, ENOMEM,
260232153Smm		    "Can't allocate memory for Pathname");
261232153Smm		return (ARCHIVE_FATAL);
262232153Smm	}
263232153Smm	if (len == 0 || path == NULL || path[0] == '\0') {
264232153Smm		archive_set_error(&a->archive, -1, "Pathname required");
265232153Smm		return (ARCHIVE_FAILED);
266232153Smm	}
267232153Smm
268232153Smm	if (!archive_entry_size_is_set(entry) || archive_entry_size(entry) < 0) {
269232153Smm		archive_set_error(&a->archive, -1, "Size required");
270232153Smm		return (ARCHIVE_FAILED);
271232153Smm	}
272232153Smm	return write_header(a, entry);
273232153Smm}
274232153Smm
275232153Smmstatic int
276232153Smmwrite_header(struct archive_write *a, struct archive_entry *entry)
277232153Smm{
278228753Smm	struct cpio *cpio;
279228753Smm	const char *p, *path;
280232153Smm	int pathlength, ret, ret_final;
281228753Smm	int64_t	ino;
282232153Smm	char h[76];
283232153Smm	struct archive_string_conv *sconv;
284232153Smm	struct archive_entry *entry_main;
285232153Smm	size_t len;
286228753Smm
287228753Smm	cpio = (struct cpio *)a->format_data;
288232153Smm	ret_final = ARCHIVE_OK;
289232153Smm	sconv = get_sconv(a);
290228753Smm
291232153Smm#if defined(_WIN32) && !defined(__CYGWIN__)
292232153Smm	/* Make sure the path separators in pahtname, hardlink and symlink
293232153Smm	 * are all slash '/', not the Windows path separator '\'. */
294232153Smm	entry_main = __la_win_entry_in_posix_pathseparator(entry);
295232153Smm	if (entry_main == NULL) {
296232153Smm		archive_set_error(&a->archive, ENOMEM,
297232153Smm		    "Can't allocate ustar data");
298232153Smm		return(ARCHIVE_FATAL);
299232153Smm	}
300232153Smm	if (entry != entry_main)
301232153Smm		entry = entry_main;
302232153Smm	else
303232153Smm		entry_main = NULL;
304232153Smm#else
305232153Smm	entry_main = NULL;
306232153Smm#endif
307228753Smm
308232153Smm	ret = archive_entry_pathname_l(entry, &path, &len, sconv);
309232153Smm	if (ret != 0) {
310232153Smm		if (errno == ENOMEM) {
311232153Smm			archive_set_error(&a->archive, ENOMEM,
312232153Smm			    "Can't allocate memory for Pathname");
313232153Smm			ret_final = ARCHIVE_FATAL;
314232153Smm			goto exit_write_header;
315232153Smm		}
316232153Smm		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
317232153Smm		    "Can't translate pathname '%s' to %s",
318232153Smm		    archive_entry_pathname(entry),
319232153Smm		    archive_string_conversion_charset_name(sconv));
320232153Smm		ret_final = ARCHIVE_WARN;
321232153Smm	}
322232153Smm	/* Include trailing null. */
323232153Smm	pathlength = (int)len + 1;
324228753Smm
325232153Smm	memset(h, 0, sizeof(h));
326232153Smm	format_octal(070707, h + c_magic_offset, c_magic_size);
327232153Smm	format_octal(archive_entry_dev(entry), h + c_dev_offset, c_dev_size);
328232153Smm
329228753Smm	ino = synthesize_ino_value(cpio, entry);
330228753Smm	if (ino < 0) {
331228753Smm		archive_set_error(&a->archive, ENOMEM,
332228753Smm		    "No memory for ino translation table");
333232153Smm		ret_final = ARCHIVE_FATAL;
334232153Smm		goto exit_write_header;
335228753Smm	} else if (ino > 0777777) {
336228753Smm		archive_set_error(&a->archive, ERANGE,
337228753Smm		    "Too many files for this cpio format");
338232153Smm		ret_final = ARCHIVE_FATAL;
339232153Smm		goto exit_write_header;
340228753Smm	}
341232153Smm	format_octal(ino & 0777777, h + c_ino_offset, c_ino_size);
342228753Smm
343232153Smm	/* TODO: Set ret_final to ARCHIVE_WARN if any of these overflow. */
344232153Smm	format_octal(archive_entry_mode(entry), h + c_mode_offset, c_mode_size);
345232153Smm	format_octal(archive_entry_uid(entry), h + c_uid_offset, c_uid_size);
346232153Smm	format_octal(archive_entry_gid(entry), h + c_gid_offset, c_gid_size);
347232153Smm	format_octal(archive_entry_nlink(entry), h + c_nlink_offset, c_nlink_size);
348228753Smm	if (archive_entry_filetype(entry) == AE_IFBLK
349228753Smm	    || archive_entry_filetype(entry) == AE_IFCHR)
350232153Smm	    format_octal(archive_entry_dev(entry), h + c_rdev_offset, c_rdev_size);
351228753Smm	else
352232153Smm	    format_octal(0, h + c_rdev_offset, c_rdev_size);
353232153Smm	format_octal(archive_entry_mtime(entry), h + c_mtime_offset, c_mtime_size);
354232153Smm	format_octal(pathlength, h + c_namesize_offset, c_namesize_size);
355228753Smm
356228753Smm	/* Non-regular files don't store bodies. */
357228753Smm	if (archive_entry_filetype(entry) != AE_IFREG)
358228753Smm		archive_entry_set_size(entry, 0);
359228753Smm
360228753Smm	/* Symlinks get the link written as the body of the entry. */
361232153Smm	ret = archive_entry_symlink_l(entry, &p, &len, sconv);
362232153Smm	if (ret != 0) {
363232153Smm		if (errno == ENOMEM) {
364232153Smm			archive_set_error(&a->archive, ENOMEM,
365232153Smm			    "Can't allocate memory for Linkname");
366232153Smm			ret_final = ARCHIVE_FATAL;
367232153Smm			goto exit_write_header;
368232153Smm		}
369232153Smm		archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
370232153Smm		    "Can't translate linkname '%s' to %s",
371232153Smm		    archive_entry_symlink(entry),
372232153Smm		    archive_string_conversion_charset_name(sconv));
373232153Smm		ret_final = ARCHIVE_WARN;
374232153Smm	}
375232153Smm	if (len > 0 && p != NULL  &&  *p != '\0')
376232153Smm		ret = format_octal(strlen(p), h + c_filesize_offset,
377232153Smm		    c_filesize_size);
378228753Smm	else
379232153Smm		ret = format_octal(archive_entry_size(entry),
380232153Smm		    h + c_filesize_offset, c_filesize_size);
381232153Smm	if (ret) {
382232153Smm		archive_set_error(&a->archive, ERANGE,
383232153Smm		    "File is too large for cpio format.");
384232153Smm		ret_final = ARCHIVE_FAILED;
385232153Smm		goto exit_write_header;
386232153Smm	}
387228753Smm
388232153Smm	ret = __archive_write_output(a, h, sizeof(h));
389232153Smm	if (ret != ARCHIVE_OK) {
390232153Smm		ret_final = ARCHIVE_FATAL;
391232153Smm		goto exit_write_header;
392232153Smm	}
393228753Smm
394232153Smm	ret = __archive_write_output(a, path, pathlength);
395232153Smm	if (ret != ARCHIVE_OK) {
396232153Smm		ret_final = ARCHIVE_FATAL;
397232153Smm		goto exit_write_header;
398232153Smm	}
399228753Smm
400228753Smm	cpio->entry_bytes_remaining = archive_entry_size(entry);
401228753Smm
402228753Smm	/* Write the symlink now. */
403232153Smm	if (p != NULL  &&  *p != '\0') {
404232153Smm		ret = __archive_write_output(a, p, strlen(p));
405232153Smm		if (ret != ARCHIVE_OK) {
406232153Smm			ret_final = ARCHIVE_FATAL;
407232153Smm			goto exit_write_header;
408232153Smm		}
409232153Smm	}
410232153Smmexit_write_header:
411232153Smm	if (entry_main)
412232153Smm		archive_entry_free(entry_main);
413232153Smm	return (ret_final);
414228753Smm}
415228753Smm
416228753Smmstatic ssize_t
417228753Smmarchive_write_cpio_data(struct archive_write *a, const void *buff, size_t s)
418228753Smm{
419228753Smm	struct cpio *cpio;
420228753Smm	int ret;
421228753Smm
422228753Smm	cpio = (struct cpio *)a->format_data;
423228753Smm	if (s > cpio->entry_bytes_remaining)
424238856Smm		s = (size_t)cpio->entry_bytes_remaining;
425228753Smm
426232153Smm	ret = __archive_write_output(a, buff, s);
427228753Smm	cpio->entry_bytes_remaining -= s;
428228753Smm	if (ret >= 0)
429228753Smm		return (s);
430228753Smm	else
431228753Smm		return (ret);
432228753Smm}
433228753Smm
434228753Smm/*
435228753Smm * Format a number into the specified field.
436228753Smm */
437228753Smmstatic int
438228753Smmformat_octal(int64_t v, void *p, int digits)
439228753Smm{
440228753Smm	int64_t	max;
441228753Smm	int	ret;
442228753Smm
443228753Smm	max = (((int64_t)1) << (digits * 3)) - 1;
444228753Smm	if (v >= 0  &&  v <= max) {
445228753Smm	    format_octal_recursive(v, (char *)p, digits);
446228753Smm	    ret = 0;
447228753Smm	} else {
448228753Smm	    format_octal_recursive(max, (char *)p, digits);
449228753Smm	    ret = -1;
450228753Smm	}
451228753Smm	return (ret);
452228753Smm}
453228753Smm
454228753Smmstatic int64_t
455228753Smmformat_octal_recursive(int64_t v, char *p, int s)
456228753Smm{
457228753Smm	if (s == 0)
458228753Smm		return (v);
459228753Smm	v = format_octal_recursive(v, p+1, s-1);
460238856Smm	*p = '0' + ((char)v & 7);
461228753Smm	return (v >> 3);
462228753Smm}
463228753Smm
464228753Smmstatic int
465232153Smmarchive_write_cpio_close(struct archive_write *a)
466228753Smm{
467228753Smm	int er;
468228753Smm	struct archive_entry *trailer;
469228753Smm
470232153Smm	trailer = archive_entry_new2(NULL);
471228753Smm	/* nlink = 1 here for GNU cpio compat. */
472228753Smm	archive_entry_set_nlink(trailer, 1);
473232153Smm	archive_entry_set_size(trailer, 0);
474228753Smm	archive_entry_set_pathname(trailer, "TRAILER!!!");
475232153Smm	er = write_header(a, trailer);
476228753Smm	archive_entry_free(trailer);
477228753Smm	return (er);
478228753Smm}
479228753Smm
480228753Smmstatic int
481232153Smmarchive_write_cpio_free(struct archive_write *a)
482228753Smm{
483228753Smm	struct cpio *cpio;
484228753Smm
485228753Smm	cpio = (struct cpio *)a->format_data;
486228753Smm	free(cpio->ino_list);
487228753Smm	free(cpio);
488228753Smm	a->format_data = NULL;
489228753Smm	return (ARCHIVE_OK);
490228753Smm}
491228753Smm
492228753Smmstatic int
493228753Smmarchive_write_cpio_finish_entry(struct archive_write *a)
494228753Smm{
495228753Smm	struct cpio *cpio;
496228753Smm
497228753Smm	cpio = (struct cpio *)a->format_data;
498238856Smm	return (__archive_write_nulls(a,
499238856Smm		(size_t)cpio->entry_bytes_remaining));
500228753Smm}
501