table of contents
ZIP_SOURCE_SEEK_COMPUTE_OFFSET(3) | Library Functions Manual | ZIP_SOURCE_SEEK_COMPUTE_OFFSET(3) |
NAME¶
zip_source_seek_compute_offset
—
validate arguments and compute offset
LIBRARY¶
libzip (-lzip)
SYNOPSIS¶
#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);
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¶
HISTORY¶
zip_source_seek_compute_offset
() was added
in libzip 1.0.
AUTHORS¶
Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>
December 18, 2017 | Linux 5.14.0-427.18.1.el9_4.x86_64 |