DragonFly On-Line Manual Pages

ZIP_SOURCE_SEEK_COMPUTE_OFFSET(1)    LOCAL   ZIP_SOURCE_SEEK_COMPUTE_OFFSET(1)

NAME
       zip_source_seek_compute_offset - validate arguments and compute offset

LIBRARY
       libzip (-lzip)

SYNOPSIS
       zip.h zip_int64_t zip_source_seek_compute_offset zip_uint64_t offset
       zip_uint64_t length void *data zip_uint64_t data_length zip_error_t
       *error

DESCRIPTION
       Use this function to compute the offset for a ZIP_SOURCE_SEEK or
       ZIP_SOURCE_SEEK_WRITE command.  data and data_length are the arguments
       to the source callback, offset is the current offset and length is the
       length of the source data or, for ZIP_SOURCE_SEEK_WRITE, the amount of
       data written.

RETURN VALUES
       On success, it returns the new offset, on error it returns -1 and sets
       error.

ERRORS
       zip_source_seek_compute_offset fails if:

       [ZIP_ER_INVAL]   One of the arguments is invalid or the seek would
                        place the offset outside the data.

SEE ALSO
       zip_source_function(3)

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

NiH                            November 13, 2014
                                             ZIP_SOURCE_SEEK_COMPUTE_OFFSET(1)