ZIP_SOURCE_ZIP(3)					     Library Functions Manual						 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  contain-
       ing  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  com-
				     pressed 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_func-
       tion(3)

AUTHORS

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

NiH								   June 4, 2008 						 ZIP_SOURCE_ZIP(3)