On 06/04/2014 02:47 PM, Tomas Mlcoch wrote:
Hi,
as you may know, the primary repodata contains information about header byte
range, e.g.:
<rpm:header-range start="1384" end="1050136"/>
AFAIK, the rpm library doesn't provide any way how to get this information and
tools like createrepo[1] or createrepo_c[2] have to do it by itself.
It would be nice if the rpm library had such functionality included, so all
tools, which need this information, could use a standard way how to get it and
also it would be handy for case that the header format will change in future.
Is there any plan to add such function into the rpm or it is already there and
I've missed something?
Does something still use that data? AFAIK the header byte range in
repodata is nothing but a hack which yum needed at dawn of times, but
long since unneeded.
Anyway, you can get it indirectly: after rpmReadPackageFile(), Ftell()
on the file descriptor will give you the header end. Substract the size
of RPMTAG_HEADERIMMUTABLE data from the header from the end offset to
get the start offset.
- Panu -
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