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ZIP_SOURCE_SEEK_COMPUTE_OFFSET

Section: C Library Functions (3)
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BSD mandoc

NAME

zip_source_seek_compute_offset - validate arguments and compute offset

LIBRARY

libzip -lzip)

SYNOPSIS

In zip.h Ft zip_int64_t Fn 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

Fn zip_source_seek_compute_offset fails if:

Bq Er ZIP_ER_INVAL: One of the arguments is invalid or the seek would place the offset outside the data.

HISTORY

Fn zip_source_seek_compute_offset was added in libzip 1.0.

AUTHORS

An -nosplit An Dieter Baron Aq Mt dillo@nih.at and An Thomas Klausner Aq Mt wiz@gatalith.at