https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7233
--- Comment #4 from Jakub Zawadzki <darkjames-ws@xxxxxxxxxxxx> 2012-06-05 09:12:35 PDT ---
(In reply to comment #3)
> Are there any cases where a *forward* seek could be done inside the buffer?
You ask about this chunk (?):
- if (file->compression == UNCOMPRESSED && file->pos + offset >= file->raw) {
+ if (file->compression == UNCOMPRESSED && file->pos + offset >= file->raw
+ && (offset < 0 || offset >= file->have) /* seek only when we don't have
that offset in buffer */)
+ {
It happened few times during my tests.
Speaking of forward seek, we don't handle it well.
When ws_lseek64() failed with EISPIPE, and it's forward seek we should not
fail.
But skip it using gz_skip().
I never hit such case, but I have it in my TODOs.
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