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ZIP_SET_FILE_EXTRA(3)					 ZIP_SET_FILE_EXTRA(3)

NAME
       zip_set_file_extra - set extra field for file in zip

LIBRARY
       libzip (-lzip)

SYNOPSIS
       #include <zip.h>

       int zip_set_file_extra(struct zip *archive, zip_uint64_t index); "const
       char *extra" "int len"

DESCRIPTION
       The zip_set_file_extra function sets the extra field for	 the  file  at
       position	 index in the zip archive to extra of length len.  If extra is
       NULL and len is 0, the file extra field will be removed.

RETURN VALUES
       Upon successful completion 0 is returned.  Otherwise,  -1  is  returned
       and the error information in archive is set to indicate the error.

ERRORS
       zip_set_file_extra fails if:

	      [ZIP_ER_INVAL]
		  index	 is  not a valid file index in archive, or len is less
		  than 0 or longer than the maximum extra field	 length	 in  a
		  zip file (65535).

	      [ZIP_ER_MEMORY]
		  Required memory could not be allocated.

SEE ALSO
       libzip(3), zip_get_file_extra(3)

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

NiH			       February 13, 2011	 ZIP_SET_FILE_EXTRA(3)

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