libarchive 2.2.3

  * "compression_program" support uses an external program
  * Portability: no longer uses "struct stat" as a primary
    data interchange structure internally
  * Part of the above: refactor archive_entry to separate
    out copy_stat() and stat() functions
  * More complete tests for archive_entry
  * Finish archive_entry_clone()
  * Isolate major()/minor()/makedev() in archive_entry; remove
    these from everywhere else.
  * Bug fix: properly handle decompression look-ahead at end-of-data
  * Bug fixes to 'ar' support
  * Fix memory leak in ZIP reader
  * Portability: better timegm() emulation in iso9660 reader
  * New write_disk flags to suppress auto dir creation and not
    overwrite newer files (for future cpio front-end)
  * Simplify trailing-'/' fixup when writing tar and pax
  * Test enhancements:  fix various compiler warnings, improve
    portability, add lots of new tests.
  * Documentation: document new functions, first draft of
    libarchive_internals.3

MFC after: 14 days
Thanks to: Joerg Sonnenberger (compression_program)
Thanks to: Kai Wang (ar)
Thanks to: Colin Percival (many small fixes)
Thanks to: Many others who sent me various patches and problem reports.

1 files changed, 100 insertions, 0 deletions

diff --git a/lib/libarchive/archive_entry_stat.c b/lib/libarchive/archive_entry_stat.c
new file mode 100644
index 0000000..d06ee2c
--- /dev/null
+++ b/lib/libarchive/archive_entry_stat.c
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 2003-2007 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.
+ * 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_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#include "archive_entry.h"
+#include "archive_entry_private.h"
+
+const struct stat *
+archive_entry_stat(struct archive_entry *entry)
+{
+	struct stat *st;
+	if (entry->stat == NULL) {
+		entry->stat = malloc(sizeof(*st));
+		if (entry->stat == NULL)
+			return (NULL);
+		entry->stat_valid = 0;
+	}
+
+	/*
+	 * If none of the underlying fields have been changed, we
+	 * don't need to regenerate.  In theory, we could use a bitmap
+	 * here to flag only those items that have changed, but the
+	 * extra complexity probably isn't worth it.  It will be very
+	 * rare for anyone to change just one field then request a new
+	 * stat structure.
+	 */
+	if (entry->stat_valid)
+		return (entry->stat);
+
+	st = entry->stat;
+	/*
+	 * Use the public interfaces to extract items, so that
+	 * the appropriate conversions get invoked.
+	 */
+	st->st_atime = archive_entry_atime(entry);
+	st->st_ctime = archive_entry_ctime(entry);
+	st->st_mtime = archive_entry_mtime(entry);
+	st->st_dev = archive_entry_dev(entry);
+	st->st_gid = archive_entry_gid(entry);
+	st->st_uid = archive_entry_uid(entry);
+	st->st_ino = archive_entry_ino(entry);
+	st->st_nlink = archive_entry_nlink(entry);
+	st->st_rdev = archive_entry_rdev(entry);
+	st->st_size = archive_entry_size(entry);
+	st->st_mode = archive_entry_mode(entry);
+
+	/*
+	 * On systems that support high-res timestamps, copy that
+	 * information into struct stat.
+	 */
+#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
+	st->st_atimespec.tv_nsec = archive_entry_atime_nsec(entry);
+	st->st_ctimespec.tv_nsec = archive_entry_ctime_nsec(entry);
+	st->st_mtimespec.tv_nsec = archive_entry_mtime_nsec(entry);
+#elif HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+	st->st_atim.tv_nsec = archive_entry_atime_nsec(entry);
+	st->st_ctim.tv_nsec = archive_entry_ctime_nsec(entry);
+	st->st_mtim.tv_nsec = archive_entry_mtime_nsec(entry);
+#endif
+
+	/*
+	 * TODO: On Linux, store 32 or 64 here depending on whether
+	 * the cached stat structure is a stat32 or a stat64.  This
+	 * will allow us to support both variants interchangably.
+	 */
+	entry->stat_valid = 1;
+
+	return (st);
+}