diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/libarchive-formats.5')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/libarchive-formats.5 | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/Utilities/cmlibarchive/libarchive/libarchive-formats.5 b/Utilities/cmlibarchive/libarchive/libarchive-formats.5 index 2022531..d223bf8 100644 --- a/Utilities/cmlibarchive/libarchive/libarchive-formats.5 +++ b/Utilities/cmlibarchive/libarchive/libarchive-formats.5 @@ -1,4 +1,4 @@ -.\" Copyright (c) 2003-2007 Tim Kientzle +.\" Copyright (c) 2003-2009 Tim Kientzle .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without @@ -22,10 +22,10 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $FreeBSD: src/lib/libarchive/libarchive-formats.5,v 1.16 2008/05/26 17:00:23 kientzle Exp $ +.\" $FreeBSD: head/lib/libarchive/libarchive-formats.5 201077 2009-12-28 01:50:23Z kientzle $ .\" -.Dd July 17, 2009 -.Dt libarchive-formats 5 +.Dd December 27, 2009 +.Dt LIBARCHIVE-FORMATS 5 .Os .Sh NAME .Nm libarchive-formats @@ -132,21 +132,30 @@ This name is limited to 100 bytes. Extended attributes, file flags, and other extended security information cannot be stored. .It -Archive entries are limited to 2 gigabytes in size. +Archive entries are limited to 8 gigabytes in size. .El Note that the pax interchange format has none of these restrictions. .El +.Pp +The libarchive library also reads a variety of commonly-used extensions to +the basic tar format. +These extensions are recognized automatically whenever they appear. +.Bl -tag -width indent +.It Numeric extensions. +The POSIX standards require fixed-length numeric fields to be written with +some character position reserved for terminators. +Libarchive allows these fields to be written without terminator characters. +This extends the allowable range; in particular, ustar archives with this +extension can support entries up to 64 gigabytes in size. +Libarchive also recognizes base-256 values in most numeric fields. +This essentially removes all limitations on file size, modification time, +and device numbers. .It Solaris extensions Libarchive recognizes ACL and extended attribute records written by Solaris tar. Currently, libarchive only has support for old-style ACLs; the newer NFSv4 ACLs are recognized but discarded. -.Pp -The libarchive library can also read a variety of commonly-used extensions to -the basic tar format. -In particular, it supports base-256 values in certain numeric fields. -This essentially removes the limitations on file size, modification time, -and device numbers. +.El .Pp The first tar program appeared in Seventh Edition Unix in 1979. The first official standard for the tar file format was the @@ -333,6 +342,12 @@ using libarchive. If it cannot locate and open the file on disk, libarchive will return an error for any attempt to read the entry body. +.Ss RAR +libarchive has limited support to read files in RAR format. Currently, +libarchive can read single RAR files in RARv3 format which have been either +created uncompressed, or compressed using any of the compression methods +supported by the RARv3 format. libarchive can also extract RAR files which have +been created as self-extracting RAR files. .Sh SEE ALSO .Xr ar 1 , .Xr cpio 1 , |