.\" Copyright (c) 2003-2011 Tim Kientzle
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.\" $FreeBSD$
.\"
.Dd February 2, 2012
.Dt ARCHIVE_READ_HEADER 3
.Os
.Sh NAME
.Nm archive_read_next_header ,
.Nm archive_read_next_header2
.Nd functions for reading streaming archives
.Sh LIBRARY
Streaming Archive Library (libarchive, -larchive)
.Sh SYNOPSIS
.In archive.h
.Ft int
.Fn archive_read_next_header "struct archive *" "struct archive_entry **"
.Ft int
.Fn archive_read_next_header2 "struct archive *" "struct archive_entry *"
.\"
.Sh DESCRIPTION
.Bl -tag -compact -width indent
.It Fn archive_read_next_header
Read the header for the next entry and return a pointer to
a
.Tn struct archive_entry .
This is a convenience wrapper around
.Fn archive_read_next_header2
that reuses an internal
.Tn struct archive_entry
object for each request.
.It Fn archive_read_next_header2
Read the header for the next entry and populate the provided
.Tn struct archive_entry .
.El
.\"
.Sh RETURN VALUES
These functions return
.Cm ARCHIVE_OK
(the operation succeeded),
.Cm ARCHIVE_WARN
(the operation succeeded but a non-critical error was encountered),
.Cm ARCHIVE_EOF
(end-of-archive was encountered),
.Cm ARCHIVE_RETRY
(the operation failed but can be retried),
and
.Cm ARCHIVE_FATAL
(there was a fatal error; the archive should be closed immediately).
.\"
.Sh ERRORS
Detailed error codes and textual descriptions are available from the
.Fn archive_errno
and
.Fn archive_error_string
functions.
.\"
.Sh SEE ALSO
.Xr tar 1 ,
.Xr archive_read 3 ,
.Xr archive_read_data 3 ,
.Xr archive_read_extract 3 ,
.Xr archive_read_filter 3 ,
.Xr archive_read_format 3 ,
.Xr archive_read_open 3 ,
.Xr archive_read_set_options 3 ,
.Xr archive_util 3 ,
.Xr libarchive 3 ,
.Xr tar 5
