NAMEzip_file_extra_field_delete, zip_file_extra_field_delete_by_id — delete extra field for file in zip
SYNOPSIS#include <zip.h> int
zip_file_extra_field_delete(zip_t *archive, zip_uint64_t index, zip_uint16_t extra_field_index, zip_flags_t flags); int
zip_file_extra_field_delete_by_id(zip_t *archive, zip_uint64_t index, zip_uint16_t extra_field_id, zip_uint16_t extra_field_index, zip_flags_t flags);
DESCRIPTIONThe zip_file_extra_field_delete() function deletes the extra field with index extra_field_index for the file at position index in the zip archive. If extra_field_index is
ZIP_EXTRA_FIELD_ALL, then all extra fields will be deleted. The following flags are supported:
- Delete extra fields from the archive's central directory.
- Delete extra fields from the local file headers.
ZIP_EXTRA_FIELD_ALLwill delete all extra fields of the specified ID). Please note that due to the library design, the index of an extra field may be different between central directory and local file headers. For this reason, it is not allowed to specify both
ZIP_FL_LOCALin flags, except when deleting all extra fields (i.e., extra_field_index being
RETURN VALUESUpon successful completion 0 is returned. Otherwise, -1 is returned and the error code in archive is set to indicate the error.
ERRORSzip_file_extra_field_delete() and zip_file_extra_field_delete_by_id() fail if:
- index is not a valid file index in archive.