ZIP_SOURCE_SEEK_COMPUTE_OFFSET(1) LOCAL ZIP_SOURCE_SEEK_COMPUTE_OFFSET(1)NAMEzip_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.
ERRORSzip_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 ALSOzip_source_function(3)AUTHORS
Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>
NiH November 13, 2ZIP_SOURCE_SEEK_COMPUTE_OFFSET(1)