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ZIP_FILE_EXTRA_FIELD_DELETE(3)			ZIP_FILE_EXTRA_FIELD_DELETE(3)

NAME
       zip_file_extra_field_delete  ,  - .Nm zip_file_extra_field_delete_by_id
       delete extra field for file in zip

LIBRARY
       libzip (-lzip)

SYNOPSIS
       #include <zip.h>

       int  zip_file_extra_field_delete(struct	zip   *archive,	  zip_uint64_t
       index); "zip_uint16_t extra_field_index" "zip_flags_t flags"

       int zip_file_extra_field_delete_by_id(struct zip *archive, zip_uint64_t
       index); "zip_uint16_t extra_field_id" "zip_uint16_t  extra_field_index"
       "zip_flags_t flags"

DESCRIPTION
       The  zip_file_extra_field_delete	 function deletes the extra field with
       index extra_field_index for the file at position index in the  zip  ar‐
       chive.

       If index is ZIP_EXTRA_FIELD_ALL, then all extra fields will be deleted.

       The following flags are supported:

	      ZIP_FL_CENTRAL	Delete extra fields from the archive's central
				directory.

	      ZIP_FL_LOCAL	Delete extra fields from the local file	 head‐
				ers.

       The  zip_file_extra_field_delete_by_id function deletes the extra field
       with ID (two-byte signature) extra_field_id and index extra_field_index
       (in   other   words,  the  extra_field_index'th	extra  field  with  ID
       extra_field_id  )  The  other   arguments   are	 the   same   as   for
       zip_file_extra_field_delete ( ZIP_EXTRA_FIELD_ALL will delete all extra
       fields the specified ID).

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

ERRORS
       zip_file_extra_field_delete  and zip_file_extra_field_delete_by_id fail
       if:

	      [ZIP_ER_NOENT]
		  index is not a valid file index in archive.

SEE ALSO
       libzip(3),  zip_file_extra_field_get(3),	  zip_file_extra_field_set(3),
       zip_file_extra_fields_count(3)

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

NiH			       February 20, 2013ZIP_FILE_EXTRA_FIELD_DELETE(3)

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