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ZIP_SOURCE_ZIP(3)					     ZIP_SOURCE_ZIP(3)

NAME
       zip_source_zip - create data source from zip file

LIBRARY
       libzip (-lzip)

SYNOPSIS
       #include <zip.h>

       struct  zip_source  *  zip_source_zip(struct  zip  *archive, struct zip
       *srcarchive); "zip_uint64_t srcidx" "int	 flags"	 "zip_uint64_t	start"
       "zip_int64_t len"

DESCRIPTION
       The  function  zip_source_zip creates a zip source from a file in a zip
       archive.	 The srcarchive argument is the (open) zip archive  containing
       the  source zip file at index srcidx.  len bytes from offset start will
       be used in the zip_source.  If len is 0 or -1, the rest	of  the	 file,
       starting	 from  start,  is  used.   If start is zero and len is -1, the
       whole file will be copied without decompressing it.

       Supported flags are:

	      ZIP_FL_UNCHANGED	     Try to get the original data without  any
				     changes   that  may  have	been  made  to
				     srcarchive after opening it.

	      ZIP_FL_RECOMPRESS	     When adding the data from srcarchive, re-
				     compress  it  using  the current settings
				     instead of copying the compressed data.

RETURN VALUES
       Upon successful completion, the created source is returned.  Otherwise,
       NULL  is	 returned and the error code in archive is set to indicate the
       error.

ERRORS
       zip_source_zip fails if:

	      [ZIP_ER_CHANGED]
		  Unchanged data was requested, but it is not available.

	      [ZIP_ER_INVAL]
		  srcarchive, srcidx, start, or len are invalid.

	      [ZIP_ER_MEMORY]
		  Required memory could not be allocated.
       Additionally, it can return all error  codes  from  zip_stat_index  and
       zip_fopen_index.

SEE ALSO
       libzip(3),     zip_add(3),     zip_replace(3),	 zip_source_buffer(3),
       zip_source_file(3),	zip_source_filep(3),	   zip_source_free(3),
       zip_source_function(3)

AUTHORS
       Dieter Baron <dillo@giga.or.at> and Thomas Klausner <tk@giga.or.at>

NiH				 June 4, 2008		     ZIP_SOURCE_ZIP(3)

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