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man/zip_source_file.mdoc

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+.\" $NiH: zip_source.mdoc,v 1.2 2004/11/17 21:55:14 wiz Exp $
+.\"
+.\" zip_source_file.mdoc -- create data source from a file
+.\" Copyright (C) 2004 Dieter Baron and Thomas Klausner
+.\"
+.\" This file is part of libzip, a library to manipulate ZIP archives.
+.\" The authors can be contacted at <nih@giga.or.at>
+.\"
+.\" 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.
+.\" 3. The names of the authors may not be used to endorse or promote
+.\"    products derived from this software without specific prior
+.\"    written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
+.\"
+.Dd November 4, 2004
+.Dt ZIP_SOURCE_FILE 3
+.Os
+.Sh NAME
+.Nm zip_source_file
+.Nd create data source from a file
+.Sh LIBRARY
+libzip (-lzip)
+.Sh SYNOPSIS
+.Ft int
+.Fn zip_source_file "struct zip *archive" "const char *fname" "off_t start" "off_t len"
+.Sh DESCRIPTION
+The function
+.Fn zip_source_file
+creates a zip source from a file.
+.Fn zip_source_filep
+opens
+.Ar fname
+and reads
+.Ar len
+bytes from offset
+.Ar start 
+from it.
+If
+.Ar len
+is 0 or \-1, the whole file (starting from
+.Ar start )
+is used.
+.Sh RETURN VALUES
+Upon successful completion, the created source is returned.
+Otherwise,
+.Dv NULL
+is returned and the error code in
+.Ar archive
+is set to indicate the error.
+.Sh ERRORS
+.Fn zip_source_file
+fails if:
+.Bl -tag -width Er
+.It Bq Er ZIP_ER_INVAL
+.Ar fname ,
+.Ar start ,
+or
+.Ar len
+are invalid.
+.It Bq Er ZIP_ER_MEMORY
+Required memory could not be allocated.
+.It Bq Er ZIP_ER_OPEN
+Opening
+.Ar fname
+failed.
+.El
+.Sh SEE ALSO
+.Xr zip_add 3 ,
+.Xr zip_replace 3 ,
+.Xr zip_source_data 3 ,
+.Xr zip_source_filep 3 ,
+.Xr zip_source_free 3 ,
+.Xr zip_source_function 3 ,
+.Xr zip_source_zip 3