zip_source_seek_compute_offset3
Validate arguments and compute offset
Usage
#include <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);
Library
libzip (-lzip)
Overview
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.
Releases
6 releases since Debian 9 (Stretch); the text changed 2 times.