Re: Password identifiers, protocol aging and SCRAM protocol

Michael Paquier <michael.paquier@gmail.com> writes:
> On Fri, Jul 22, 2016 at 8:48 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I'm confused.  We need that code in both libpq and backend, no?
>> src/common is the place for stuff of that description.

> Not necessarily. src/interfaces/libpq/Makefile uses a set of files
> like md5.c which is located in the backend code and directly compiles
> libpq.so with them, so one possibility would be to do the same for
> sha.c: locate the file in src/backend/libpq/ and then fetch the file
> directly when compiling libpq's shared library.

Meh.  That seems like a hack left over from before we had src/common.

Having said that, src/interfaces/libpq/ does have some special
requirements, because it needs the code compiled with -fpic (on most
hardware), which means it can't just use the client-side libpgcommon.a
builds.  So maybe it's not worth improving this.

> One thing about my current set of patches is that I have begun adding
> files from src/common/ to libpq's list of files. As that would be new
> I am wondering if I should avoid doing so.

Well, it could link source files from there just as easily as from the
backend.  Not object files, though.
        regards, tom lane