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author | kientzle <kientzle@FreeBSD.org> | 2007-05-29 01:00:21 +0000 |
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committer | kientzle <kientzle@FreeBSD.org> | 2007-05-29 01:00:21 +0000 |
commit | 013be331bc10706807599a452a143f4744398e9f (patch) | |
tree | 793787ab8615d768ba51341dfd934a5fb3039728 /lib/libarchive/archive_entry_stat.c | |
parent | c611006e893ac2bf962cabe02743954e3b3c3314 (diff) | |
download | FreeBSD-src-013be331bc10706807599a452a143f4744398e9f.zip FreeBSD-src-013be331bc10706807599a452a143f4744398e9f.tar.gz |
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.
Diffstat (limited to 'lib/libarchive/archive_entry_stat.c')
-rw-r--r-- | lib/libarchive/archive_entry_stat.c | 100 |
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); +} |