ZIP_GET_FILE_EXTRA(3)					     Library Functions Manual					     ZIP_GET_FILE_EXTRA(3)

NAME

       zip_get_file_extra - get extra field for file in zip

LIBRARY

       libzip (-lzip)

SYNOPSIS

       #include <zip.h>

       const char * zip_get_file_extra(struct zip *archive, zip_uint64_t index); "int *lenp" "int flags"

DESCRIPTION

       The zip_get_file_extra function returns the extra field for the file at position index in the zip archive.  This pointer should not be mod-
       ified or free(3) Ap d.  If lenp is not NULL, the integer to which it points will be set to the length of the extra.  If	flags  is  set	to
       ZIP_FL_UNCHANGED, the original unchanged extra field is returned.

RETURN VALUES

       Upon  successful  completion,  a  pointer to the extra field is returned, or NULL if there is no extra field.  In case of an error, NULL is
       returned and the error code in archive is set to indicate the error.

ERRORS

       zip_get_file_extra fails if:

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

SEE ALSO

       libzip(3), zip_set_file_extra(3)

AUTHORS

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

NiH								 February 13, 2011					     ZIP_GET_FILE_EXTRA(3)