342 lines
12 KiB
Groff
342 lines
12 KiB
Groff
.\" Copyright (c) 2003-2004 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd December 15, 2003
|
|
.Dt archive_entry 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm archive_entry_acl_add_entry ,
|
|
.Nm archive_entry_acl_add_entry_w ,
|
|
.Nm archive_entry_acl_clear ,
|
|
.Nm archive_entry_acl_count ,
|
|
.Nm archive_entry_acl_next ,
|
|
.Nm archive_entry_acl_next_w ,
|
|
.Nm archive_entry_acl_reset ,
|
|
.Nm archive_entry_acl_text_w ,
|
|
.Nm archive_entry_atime ,
|
|
.Nm archive_entry_atime_nsec ,
|
|
.Nm archive_entry_clear ,
|
|
.Nm archive_entry_clone ,
|
|
.Nm archive_entry_copy_fflags_text_w ,
|
|
.Nm archive_entry_copy_gname_w ,
|
|
.Nm archive_entry_copy_hardlink ,
|
|
.Nm archive_entry_copy_hardlink_w ,
|
|
.Nm archive_entry_copy_pathname_w ,
|
|
.Nm archive_entry_copy_stat ,
|
|
.Nm archive_entry_copy_symlink_w ,
|
|
.Nm archive_entry_copy_uname_w ,
|
|
.Nm archive_entry_dev ,
|
|
.Nm archive_entry_fflags ,
|
|
.Nm archive_entry_fflags_text ,
|
|
.Nm archive_entry_free ,
|
|
.Nm archive_entry_gid ,
|
|
.Nm archive_entry_gname ,
|
|
.Nm archive_entry_hardlink ,
|
|
.Nm archive_entry_ino ,
|
|
.Nm archive_entry_mode ,
|
|
.Nm archive_entry_mtime ,
|
|
.Nm archive_entry_mtime_nsec ,
|
|
.Nm archive_entry_new ,
|
|
.Nm archive_entry_pathname ,
|
|
.Nm archive_entry_pathname_w ,
|
|
.Nm archive_entry_rdev ,
|
|
.Nm archive_entry_rdevmajor ,
|
|
.Nm archive_entry_rdevminor ,
|
|
.Nm archive_entry_set_fflags ,
|
|
.Nm archive_entry_set_gid ,
|
|
.Nm archive_entry_set_gname ,
|
|
.Nm archive_entry_set_hardlink ,
|
|
.Nm archive_entry_set_link ,
|
|
.Nm archive_entry_set_mode ,
|
|
.Nm archive_entry_set_mtime ,
|
|
.Nm archive_entry_set_pathname ,
|
|
.Nm archive_entry_set_rdevmajor ,
|
|
.Nm archive_entry_set_rdevminor ,
|
|
.Nm archive_entry_set_size ,
|
|
.Nm archive_entry_set_symlink ,
|
|
.Nm archive_entry_set_uid ,
|
|
.Nm archive_entry_set_uname ,
|
|
.Nm archive_entry_size ,
|
|
.Nm archive_entry_stat ,
|
|
.Nm archive_entry_symlink ,
|
|
.Nm archive_entry_uid ,
|
|
.Nm archive_entry_uname
|
|
.Nd functions for manipulating archive entry descriptions
|
|
.Sh SYNOPSIS
|
|
.In archive_entry.h
|
|
.Ft void
|
|
.Fn archive_entry_acl_add_entry "struct archive_entry *" "int type" "int permset" "int tag" "int qual" "const char *name"
|
|
.Ft void
|
|
.Fn archive_entry_acl_add_entry_w "struct archive_entry *" "int type" "int permset" "int tag" "int qual" "const wchar_t *name"
|
|
.Ft void
|
|
.Fn archive_entry_acl_clear "struct archive_entry *"
|
|
.Ft int
|
|
.Fn archive_entry_acl_count "struct archive_entry *" "int type"
|
|
.Ft int
|
|
.Fn archive_entry_acl_next "struct archive_entry *" "int want_type" "int *type" "int *permset" "int *tag" "int *qual" "const char **name"
|
|
.Ft int
|
|
.Fn archive_entry_acl_next_w "struct archive_entry *" "int want_type" "int *type" "int *permset" "int *tag" "int *qual" "const wchar_t **name"
|
|
.Ft int
|
|
.Fn archive_entry_acl_reset "struct archive_entry *" "int want_type"
|
|
.Ft const wchar_t *
|
|
.Fn archive_entry_acl_text_w "struct archive_entry *" "int flags"
|
|
.Ft time_t
|
|
.Fn archive_entry_atime "struct archive_entry *"
|
|
.Ft long
|
|
.Fn archive_entry_atime_nsec "struct archive_entry *"
|
|
.Ft "struct archive_entry *"
|
|
.Fn archive_entry_clear "struct archive_entry *"
|
|
.Ft struct archive_entry *
|
|
.Fn archive_entry_clone "struct archive_entry *"
|
|
.Ft const wchar_t *
|
|
.Fn archive_entry_copy_fflags_text_w "struct archive_entry *" "const wchar_t *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_gname_w "struct archive_entry *" "const wchar_t *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_hardlink "struct archive_entry *" "const char *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_hardlink_w "struct archive_entry *" "const wchar_t *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_pathname_w "struct archive_entry *" "const wchar_t *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_stat "struct archive_entry *" "const struct stat *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_symlink_w "struct archive_entry *" "const wchar_t *"
|
|
.Ft void
|
|
.Fn archive_entry_copy_uname_w "struct archive_entry *" "const wchar_t *"
|
|
.Ft dev_t
|
|
.Fn archive_entry_dev "struct archive_entry *"
|
|
.Ft void
|
|
.Fn archive_entry_fflags "struct archive_entry *" "unsigned long *set" "unsigned long *clear"
|
|
.Ft const char *
|
|
.Fn archive_entry_fflags_text "struct archive_entry *"
|
|
.Ft void
|
|
.Fn archive_entry_free "struct archive_entry *"
|
|
.Ft const char *
|
|
.Fn archive_entry_gname "struct archive_entry *"
|
|
.Ft const char *
|
|
.Fn archive_entry_hardlink "struct archive_entry *"
|
|
.Ft ino_t
|
|
.Fn archive_entry_ino "struct archive_entry *"
|
|
.Ft mode_t
|
|
.Fn archive_entry_mode "struct archive_entry *"
|
|
.Ft time_t
|
|
.Fn archive_entry_mtime "struct archive_entry *"
|
|
.Ft long
|
|
.Fn archive_entry_mtime_nsec "struct archive_entry *"
|
|
.Ft struct archive_entry *
|
|
.Fn archive_entry_new "void"
|
|
.Ft const char *
|
|
.Fn archive_entry_pathname "struct archive_entry *"
|
|
.Ft const wchar_t *
|
|
.Fn archive_entry_pathname_w "struct archive_entry *"
|
|
.Ft dev_t
|
|
.Fn archive_entry_rdev "struct archive_entry *"
|
|
.Ft dev_t
|
|
.Fn archive_entry_rdevmajor "struct archive_entry *"
|
|
.Ft dev_t
|
|
.Fn archive_entry_rdevminor "struct archive_entry *"
|
|
.Ft void
|
|
.Fn archive_entry_set_fflags "struct archive_entry *" "unsigned long set" "unsigned long clear"
|
|
.Ft void
|
|
.Fn archive_entry_set_gid "struct archive_entry *" "gid_t"
|
|
.Ft void
|
|
.Fn archive_entry_set_gname "struct archive_entry *" "const char *"
|
|
.Ft void
|
|
.Fn archive_entry_set_hardlink "struct archive_entry *" "const char *"
|
|
.Ft void
|
|
.Fn archive_entry_set_link "struct archive_entry *" "const char *"
|
|
.Ft void
|
|
.Fn archive_entry_set_mode "struct archive_entry *" "mode_t"
|
|
.Ft void
|
|
.Fn archive_entry_set_mtime "struct archive_entry *" "time_t" "long nanos"
|
|
.Ft void
|
|
.Fn archive_entry_set_pathname "struct archive_entry *" "const char *"
|
|
.Ft void
|
|
.Fn archive_entry_set_rdevmajor "struct archive_entry *" "dev_t"
|
|
.Ft void
|
|
.Fn archive_entry_set_rdevminor "struct archive_entry *" "dev_t"
|
|
.Ft void
|
|
.Fn archive_entry_set_size "struct archive_entry *" "int64_t"
|
|
.Ft void
|
|
.Fn archive_entry_set_symlink "struct archive_entry *" "const char *"
|
|
.Ft void
|
|
.Fn archive_entry_set_uid "struct archive_entry *" "uid_t"
|
|
.Ft void
|
|
.Fn archive_entry_set_uname "struct archive_entry *" "const char *"
|
|
.Ft int64_t
|
|
.Fn archive_entry_size "struct archive_entry *"
|
|
.Ft const struct stat *
|
|
.Fn archive_entry_stat "struct archive_entry *"
|
|
.Ft const char *
|
|
.Fn archive_entry_symlink "struct archive_entry *"
|
|
.Ft const char *
|
|
.Fn archive_entry_uname "struct archive_entry *"
|
|
.Sh DESCRIPTION
|
|
These functions create and manipulate data objects that
|
|
represent entries within an archive.
|
|
You can think of a
|
|
.Tn struct archive_entry
|
|
as a heavy-duty version of
|
|
.Tn struct stat :
|
|
it includes everything from
|
|
.Tn struct stat
|
|
plus associated pathname, textual group and user names, etc.
|
|
These objects are used by
|
|
.Xr libarchive 3
|
|
to represent the metadata associated with a particular
|
|
entry in an archive.
|
|
.Ss Create and Destroy
|
|
There are functions to allocate, destroy, clear, and copy
|
|
.Va archive_entry
|
|
objects:
|
|
.Bl -tag -compact -width indent
|
|
.It Fn archive_entry_clear
|
|
Erases the object, resetting all internal fields to the
|
|
same state as a newly-created object.
|
|
This is provided to allow you to quickly recycle objects
|
|
without thrashing the heap.
|
|
.It Fn archive_entry_clone
|
|
A deep copy operation; all text fields are duplicated.
|
|
.It Fn archive_entry_free
|
|
Releases the
|
|
.Tn struct archive_entry
|
|
object.
|
|
.It Fn archive_entry_new
|
|
Allocate and return a blank
|
|
.Tn struct archive_entry
|
|
object.
|
|
.El
|
|
.Ss Set and Get Functions
|
|
Most of the functions here set or read entries in an object.
|
|
Such functions have one of the following forms:
|
|
.Bl -tag -compact -width indent
|
|
.It Fn archive_entry_set_XXXX
|
|
Stores the provided data in the object.
|
|
In particular, for strings, the pointer is stored,
|
|
not the referenced string.
|
|
.It Fn archive_entry_copy_XXXX
|
|
As above, except that the referenced data is copied
|
|
into the object.
|
|
.It Fn archive_entry_XXXX
|
|
Returns the specified data.
|
|
In the case of strings, a const-qualified pointer to
|
|
the string is returned.
|
|
.El
|
|
String data can be set or accessed as wide character strings
|
|
or normal
|
|
.Va char
|
|
strings.
|
|
The functions that use wide character strings are suffixed with
|
|
.Cm _w .
|
|
Note that these are different representations of the same data:
|
|
For example, if you store a narrow string and read the corresponding
|
|
wide string, the object will transparently convert formats
|
|
using the current locale.
|
|
Similarly, if you store a wide string and then store a
|
|
narrow string for the same data, the previously-set wide string will
|
|
be discarded in favor of the new data.
|
|
.Pp
|
|
There are a few set/get functions that merit additional description:
|
|
.Bl -tag -compact -width indent
|
|
.It Fn archive_entry_set_link
|
|
This function sets the symlink field if it is already set.
|
|
Otherwise, it sets the hardlink field.
|
|
.El
|
|
.Ss File Flags
|
|
File flags are transparently converted between a bitmap
|
|
representation and a textual format.
|
|
For example, if you set the bitmap and ask for text, the library
|
|
will build a canonical text format.
|
|
However, if you set a text format and request a text format,
|
|
you will get back the same text, even if it is ill-formed.
|
|
If you need to canonicalize a textual flags string, you should first set the
|
|
text form, then request the bitmap form, then use that to set the bitmap form.
|
|
Setting the bitmap format will clear the internal text representation
|
|
and force it to be reconstructed when you next request the text form.
|
|
.Pp
|
|
The bitmap format consists of two integers, one containing bits
|
|
that should be set, the other specifying bits that should be
|
|
cleared.
|
|
Bits not mentioned in either bitmap will be ignored.
|
|
Usually, the bitmap of bits to be cleared will be set to zero.
|
|
In unusual circumstances, you can force a fully-specified set
|
|
of file flags by setting the bitmap of flags to clear to the complement
|
|
of the bitmap of flags to set.
|
|
(This differs from
|
|
.Xr fflagstostr 3 ,
|
|
which only includes names for set bits.)
|
|
Converting a bitmap to a textual string is a platform-specific
|
|
operation; bits that are not meaningful on the current platform
|
|
will be ignored.
|
|
.Pp
|
|
The canonical text format is a comma-separated list of flag names.
|
|
The
|
|
.Fn archive_entry_copy_fflags_text_w
|
|
function parses the provided text and sets the internal bitmap values.
|
|
This is a platform-specific operation; names that are not meaningful
|
|
on the current platform will be ignored.
|
|
The function returns a pointer to the start of the first name that was not
|
|
recognized, or NULL if every name was recognized.
|
|
Note that every name--including names that follow an unrecognized name--will
|
|
be evaluated, and the bitmaps will be set to reflect every name that is
|
|
recognized.
|
|
(In particular, this differs from
|
|
.Xr strtofflags 3 ,
|
|
which stops parsing at the first unrecognized name.)
|
|
.Ss ACL Handling
|
|
XXX This needs serious help.
|
|
XXX
|
|
.Pp
|
|
An
|
|
.Dq Access Control List
|
|
(ACL) is a list of permissions that grant access to particular users or
|
|
groups beyond what would normally be provided by standard POSIX mode bits.
|
|
The ACL handling here addresses some deficiencies in the POSIX.1e draft 17 ACL
|
|
specification.
|
|
In particular, POSIX.1e draft 17 specifies several different formats, but
|
|
none of those formats include both textual user/group names and numeric
|
|
UIDs/GIDs.
|
|
.Pp
|
|
XXX explain ACL stuff XXX
|
|
.\" .Sh EXAMPLE
|
|
.\" .Sh RETURN VALUES
|
|
.\" .Sh ERRORS
|
|
.Sh SEE ALSO
|
|
.Xr archive 3
|
|
.Sh HISTORY
|
|
The
|
|
.Nm libarchive
|
|
library first appeared in
|
|
.Fx 5.3 .
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The
|
|
.Nm libarchive
|
|
library was written by
|
|
.An Tim Kientzle Aq kientzle@acm.org .
|
|
.\" .Sh BUGS
|