In the SSL code in libpq it does some processing with DH parameters:
SSL_CTX_set_tmp_dh_callback()
This function is marked as server use only[1], the client always uses
the DH parameters in the server, so all the code in the client dealing
with the DH parameters is useless. This patch removes it.
It's not clear why the code was added in the first place, it's been
there almost since the beginning[2]. At the time there was a suggestion
of merging the front-end and backend SSL code, but looking at the
changes since, that seems unlikely.
As a further example, the s_server program allows you to specify DH
params, but s_client doesn't. In the GnuTLS documentation under
gnutls_dh_params_generate2() it says[3]:
Also note that the DH parameters are only useful to servers. Since
clients use the parameters sent by the server, it's of no use to call
this in client side.
# Need to recomple any libpgport object files because we need these
# object files to use the same compile flags as libpq. If we used
# the object files from libpgport, this would not be true on all
# platforms.
during parse analysis, not only errors detected in the flex/bison stages.
This is per my earlier proposal. This commit includes all the basic
infrastructure, but locations are only tracked and reported for errors
involving column references, function calls, and operators. More could
be done later but this seems like a good set to start with. I've also
moved the ReportSyntaxErrorPosition logic out of psql and into libpq,
which should make it available to more people --- even within psql this
is an improvement because warnings weren't handled by ReportSyntaxErrorPosition.
not likely ever to be implemented seeing it's been removed from SQL2003.
This allows getting rid of the 'filter' version of yylex() that we had in
parser.c, which should save at least a few microseconds in parsing.
> I've now tested this patch at home w/ 8.2HEAD and it seems to fix the
> bug. I plan on testing it under 8.1.2 at work tommorow with
> mod_auth_krb5, etc, and expect it'll work there. Assuming all goes
> well and unless someone objects I'll forward the patch to -patches.
> It'd be great to have this fixed as it'll allow us to use Kerberos to
> authenticate to phppgadmin and other web-based tools which use
> Postgres.
While playing with this patch under 8.1.2 at home I discovered a
mistake in how I manually applied one of the hunks to fe-auth.c.
Basically, the base code had changed and so the patch needed to be
modified slightly. This is because the code no longer either has a
freeable pointer under 'name' or has 'name' as NULL.
The attached patch correctly frees the string from pg_krb5_authname
(where it had been strdup'd) if and only if pg_krb5_authname returned
a string (as opposed to falling through and having name be set using
name = pw->name;). Also added a comment to this effect.
Backpatch to 8.1.X.
Stephen Frost
a need for it back in the neolithic era, but it's certainly dead code in
any PG release we would recognize as such. Since it forces an additional
network round trip to the backend, getting rid of it should provide some
small performance improvement for large-object-using clients.
option state hasn't been fully set up. This is possible via PQreset()
and might occur in other code paths too, so a state flag seems the
most robust solution. Per report from Arturs Zoldners.
---------------------------------------------------------------------------
> I've now tested this patch at home w/ 8.2HEAD and it seems to fix the
> bug. I plan on testing it under 8.1.2 at work tommorow with
> mod_auth_krb5, etc, and expect it'll work there. Assuming all goes
> well and unless someone objects I'll forward the patch to -patches.
> It'd be great to have this fixed as it'll allow us to use Kerberos to
> authenticate to phppgadmin and other web-based tools which use
> Postgres.
While playing with this patch under 8.1.2 at home I discovered a
mistake in how I manually applied one of the hunks to fe-auth.c.
Basically, the base code had changed and so the patch needed to be
modified slightly. This is because the code no longer either has a
freeable pointer under 'name' or has 'name' as NULL.
The attached patch correctly frees the string from pg_krb5_authname
(where it had been strdup'd) if and only if pg_krb5_authname returned
a string (as opposed to falling through and having name be set using
name = pw->name;). Also added a comment to this effect.
Please review.
Stephen Frost (sfrost@snowman.net) wrote:
> bug. I plan on testing it under 8.1.2 at work tommorow with
> mod_auth_krb5, etc, and expect it'll work there. Assuming all goes
> well and unless someone objects I'll forward the patch to -patches.
> It'd be great to have this fixed as it'll allow us to use Kerberos to
> authenticate to phppgadmin and other web-based tools which use
> Postgres.
While playing with this patch under 8.1.2 at home I discovered a
mistake in how I manually applied one of the hunks to fe-auth.c.
Basically, the base code had changed and so the patch needed to be
modified slightly. This is because the code no longer either has a
freeable pointer under 'name' or has 'name' as NULL.
The attached patch correctly frees the string from pg_krb5_authname
(where it had been strdup'd) if and only if pg_krb5_authname returned
a string (as opposed to falling through and having name be set using
name = pw->name;). Also added a comment to this effect.
Please review.
Stephen Frost (sfrost@snowman.net) wrote:
Fixed missing continuation line character.
Do not translate $-quoting.
Bit field notation belongs to a variable not a variable list.
Output of line number only done by one function.
internally $$ strings are converted to single-quote strings.
In ecpg, output newlines in commands using standard C escapes, rather
than using literal newlines, which is not portable.
because pqSendSome will absorb input data anytime it'd be forced to block.
Avoiding a kernel call per PQputCopyData call helps COPY speed materially.
Alon Goldshuv
a va_list. Christof Petig's previous patch made this change, but neglected
to update ecpglib/descriptor.c, resulting in a compiler warning (and a
likely runtime crash) on AMD64 and PPC.
rather than "return expr;" -- the latter style is used in most of the
tree. I kept the parentheses when they were necessary or useful because
the return expression was complex.
comment line where output as too long, and update typedefs for /lib
directory. Also fix case where identifiers were used as variable names
in the backend, but as typedefs in ecpg (favor the backend for
indenting).
Backpatch to 8.1.X.
PQregisterThreadLock().
I also remove the crypt() mention in the libpq threading section and
added a single sentence in the client-auth manual page under crypt().
Crypt authentication is so old now that a separate paragraph about it
seemed unwise.
I also added a comment about our use of locking around pqGetpwuid().
regression=# select '23:59:59.9'::time(0);
time
----------
24:00:00
(1 row)
This is bad because:
regression=# select '24:00:00'::time(0);
ERROR: date/time field value out of range: "24:00:00"
The last example now works.
like '23:59:60' because of fractional-second roundoff problems. Trying
to control this upstream of the actual display code was hopeless; the right
way is to explicitly round fractional seconds in the display code and then
refigure the results if the fraction rounds up to 1. Per bug #1927.
to call krb5_sname_to_principal() always. Also, use krb_srvname rather
than the hardwired string 'postgres' as the appl_version string in the
krb5_sendauth/recvauth calls, to avoid breaking compatibility with PG
8.0. Magnus Hagander
Windows. The test itself is bypassed in configure as discussed, and
libpq has been updated appropriately to allow it to build in thread-safe
mode.
Dave Page
24 hours. This is very helpful for daylight savings time:
select '2005-05-03 00:00:00 EST'::timestamp with time zone + '24 hours';
?column?
----------------------
2005-05-04 01:00:00-04
select '2005-05-03 00:00:00 EST'::timestamp with time zone + '1 day';
?column?
----------------------
2005-05-04 01:00:00-04
Michael Glaesemann
pgtypeslib: (1) we need to check the return value of sub_abs() (2) we
need to check the return value of 4 calls to digitbuf_alloc().
Per Coverity static analysis performed by EnterpriseDB.
non-NULL in this function, so there is no need to check for it (2) we
should check the return value of pgtypes_strdup(). Patch from Eric
Astor at EnterpriseDB, with slight cleanup by myself, per a report
from the Coverity tool.
or zero-filled; therefore zero-filling it via memset() is pointless.
(I think setting `errno' is probably a waste of cycles as well, but I
haven't changed that.)
malloc() succeeded but the second failed, the buffer allocated by the
first malloc() would be leaked. Fix this by allocating both buffers
via a single malloc(), as suggested by Tom.
Per Coverity static analysis performed by EnterpriseDB.
unlike template0 and template1 does not have any special status in
terms of backend functionality. However, all external utilities such
as createuser and createdb now connect to "postgres" instead of
template1, and the documentation is changed to encourage people to use
"postgres" instead of template1 as a play area. This should fix some
longstanding gotchas involving unexpected propagation of database
objects by createdb (when you used template1 without understanding
the implications), as well as ameliorating the problem that CREATE
DATABASE is unhappy if anyone else is connected to template1.
Patch by Dave Page, minor editing by Tom Lane. All per recent
pghackers discussions.
a descriptor that uses the current transaction snapshot, rather than
SnapshotNow as it did before (and still does if INV_WRITE is set).
This means pg_dump will now dump a consistent snapshot of large object
contents, as it never could do before. Also, add a lo_create() function
that is similar to lo_creat() but allows the desired OID of the large
object to be specified. This will simplify pg_restore considerably
(but I'll fix that in a separate commit).
syntax for database connection parameters. It has been inside an
#ifdef NOT_USED block since 2001 or so and is marked as "broken", so
I don't think it is likely to be rehabilitated any time soon.
patch adds missing checks to the call sites of malloc(), strdup(),
PQmakeEmptyPGresult(), pqResultAlloc(), and pqResultStrdup(), and updates
the documentation. Per original report from Volkan Yazici about
PQmakeEmptyPGresult() not checking for malloc() failure.
postgresql.conf.
---------------------------------------------------------------------------
Here's an updated version of the patch, with the following changes:
1) No longer uses "service name" as "application version". It's instead
hardcoded as "postgres". It could be argued that this part should be
backpatched to 8.0, but it doesn't make a big difference until you can
start changing it with GUC / connection parameters. This change only
affects kerberos 5, not 4.
2) Now downcases kerberos usernames when the client is running on win32.
3) Adds guc option for "krb_caseins_users" to make the server ignore
case mismatch which is required by some KDCs such as Active Directory.
Off by default, per discussion with Tom. This change only affects
kerberos 5, not 4.
4) Updated so it doesn't conflict with the rendevouz/bonjour patch
already in ;-)
Magnus Hagander
Display only 9 not 10 digits of precision for timestamp values when
using non-integer timestamps. This prevents the display of rounding
errors for common values like days < 32.
memset() or MemSet() to a char *. For one, memset()'s first argument is
a void *, and further void * can be implicitly coerced to/from any other
pointer type.
Document use of macros for pg_printf functions.
Bump major versions of all interfaces to handle movement of get_progname
from libpq to libpgport in 8.0, and probably other libpgport changes in 8.1.
request packet, use pqReadData(). This has the same effect since
conn->ssl isn't set yet and we aren't expecting more than one byte.
The advantage is that we will correctly detect loss-of-connection
instead of going into an infinite loop. Per report from Hannu Krosing.
discussion on pgsql-hackers-win32 list. Documentation still needs to
be tweaked --- I'm not sure how to refer to the APPDATA folder in
user documentation.
consistent. On Unix we now always consult getpwuid(); $HOME isn't used
at all. On Windows the code currently consults $USERPROFILE, or $HOME
if that's not defined, but I expect this will change as soon as the win32
hackers come to a consensus. Nothing done yet about changing the file
names used underneath $USERPROFILE.
subroutine that can hide platform dependencies. The WIN32 path is still
a stub, but I await a fix from one of the win32 hackers.
Also clean up unnecessary #ifdef WIN32 ugliness in a couple of places.
Also performed an initial run through of upgrading our Copyright date to
extend to 2005 ... first run here was very simple ... change everything
where: grep 1996-2004 && the word 'Copyright' ... scanned through the
generated list with 'less' first, and after, to make sure that I only
picked up the right entries ...
its presence. This amounts to desupporting Kerberos 5 releases 1.0.*,
which is small loss, and simplifies use of our Kerberos code on platforms
with Red-Hat-style include file layouts. Per gripe from John Gray and
followup discussion.
lacking pqsignal which is now required. This was found and fixed for
VC++ by Shachar Shemesh, I simply duplicated the fix for the Borland
makefile (untested, as I don't have that compiler).
Dave Page
clause implicitly whenever one is not given explicitly. Remove concept
of a schema having an associated tablespace, and simplify the rules for
selecting a default tablespace for a table or index. It's now just
(a) explicit TABLESPACE clause; (b) default_tablespace if that's not an
empty string; (c) database's default. This will allow pg_dump to use
SET commands instead of tablespace clauses to determine object locations
(but I didn't actually make it do so). All per recent discussions.
Use this new function in psql. Implement query cancellation in psql for
Windows. Code by Magnus Hagander, documentation and minor editorialization
by Tom Lane.
just stick a list-link into struct PGnotify instead. Result is a smaller
faster and more robust library (mainly because we reduce the number of
malloc's and free's involved in notify processing), plus less pollution
of application link-symbol namespace.
exportable functions. The .def files are removed from CVS, but will
still be present in distribution tarballs, since we can't assume that
Windows boxes will have sed.
- remove another senseless "extern" keyword that was applied to a
function definition
- change a foo more function signatures from "some_type foo()" to
"some_type foo(void)"
- rewrite another K&R style function definition
- make the type of the "action" function pointer in the KeyWord struct
in src/backend/utils/adt/formatting.c more precise
- replace some function signatures of the form "some_type foo()" with
"some_type foo(void)"
- replace a few instances of a literal 0 being used as a NULL pointer;
there are more instances of this in the code, but I just fixed a few
- in src/backend/utils/mb/wstrncmp.c, replace K&R style function
declarations with ANSI style, remove use of 'register' keyword
- remove an "extern" modifier that was applied to a function definition
(rather than a declaration)
build in mingw. The MSVC build already did this, but it was not linked
into the mingw one.
This is not the same as the versioninfo patch that's in the queue.
Please apply this one before beta-3 if at all possible.
Magnus Hagander
global variables are problematic on this platform. Simplest solution
seems to be to initialize pthread key variable to 0. Also, rename this
variable and check_sigpipe_handler to something involving "pq" to
avoid gratuitous pollution of application namespace.
>you will see changes for pg_config_paths.h and for thread safety. Can
>you look at those changes, merge them into bcc.mak. There might be
>other changes in there you want to add to bcc.mak too.
>
>
>
OK, having no M$ diff, I attach files src\interfaces\libpq\bcc32.mak and
src\interfaces\libpq\win32.h
Steve Holdoway
