zzip_seek(3) zziplib Function List zzip_seek(3)
NAME
zzip_seek, zzip_seek32 - seek.
SYNOPSIS
#include <zzip/lib.h>
zzip_off_t
zzip_seek(ZZIP_FILE* fp, zzip_off_t offset, int whence)
long
zzip_seek32(ZZIP_FILE* fp, long offset, int whence)
DESCRIPTION
The zzip_seek function will perform a lseek(2) operation on a
real/zipped file
It will try to seek to the offset specified by offset, relative to
whence, which is one of SEEK_SET, SEEK_CUR or SEEK_END.
If the file-handle is wrapping a stat'able file then it will actually
just perform a normal lseek(2)-call. Otherwise the relative offset is
calculated, negative offsets are transformed into positive ones by
rewinding the file, and then data is read until the offset is reached.
This can make the function terribly slow, but this is how gzio
implements it, so I'm not sure there is a better way without using the
internals of the algorithm.
The zzip_seek32 function is provided for users who can not use any
largefile-mode.
AUTHOR
Guido Draheim <guidod@gmx.de> Tomi Ollila <Tomi.Ollila@iki.fi>
COPYRIGHT
Copyright (c) Guido Draheim, use under copyleft (LGPL,MPL)
zziplib 0.13.74 zzip_seek(3)
libzzip 0.13.74 - Generated Sat Mar 23 07:05:35 CDT 2024