postgres/contrib
Tom Lane c835be32cc pgcrypto: avoid name conflicts with OpenSSL in one more case.
I happened to notice that if compiled --with-gssapi, 9.6's
contrib/pgcrypto tests report memory stomps for some SHA operations.

Both MEMORY_CONTEXT_CHECKING and valgrind agree there's a problem,
though nothing crashes; it appears that the buffer overrun
only extends into alignment padding, at least on 64-bit hardware.

Investigation found that pgcrypto's references to SHA224_Init
et al were being captured by the system OpenSSL library, which
of course has slightly incompatible definitions of those functions.
We long ago noticed this problem with respect to the sibling
functions SHA256_Init and so on, and commit 56f44784f introduced
renaming macros to dodge the problem for those.  However, it didn't
cover the SHA224 family because we didn't use that at the time.
When commit 1abf76e82 added those awhile later, it neglected to add
a similar renaming macro.  Better late than never, so do so now.

This appears to affect all branches 8.2 - 9.6, so it's surprising
nobody noticed before now.  Maybe the effect is somehow specific
to the way RHEL8 intertwines its GSS and SSL libraries?  Anyway,
we refactored all this stuff in v10, so newer branches don't have
the problem.
2021-06-23 19:24:36 -04:00
..
adminpack Add missing errcode() in a few ereport calls. 2020-03-18 10:08:56 +05:30
auth_delay Update copyright for 2016 2016-01-02 14:19:48 -05:00
auto_explain Fix ancient memory leak in contrib/auto_explain. 2021-02-02 13:49:08 -05:00
bloom Fix failure with lock mode used for custom relation options 2019-09-25 10:08:43 +09:00
btree_gin Make contrib regression tests safe for Danish locale. 2016-07-21 16:52:35 -04:00
btree_gist Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
chkpass Avoid returning undefined bytes in chkpass_in(). 2015-02-14 12:20:56 -05:00
citext Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
cube Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
dblink Initialize dblink remoteConn struct in all cases 2020-05-28 13:45:11 -04:00
dict_int Ensure maxlen is at leat 1 in dict_int 2019-12-03 18:42:25 +01:00
dict_xsyn Update copyright for 2016 2016-01-02 13:33:40 -05:00
earthdistance Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
file_fdw Ensure that foreign scans with lateral refs are planned correctly. 2019-02-07 13:11:16 -05:00
fuzzystrmatch Update fuzzystrmatch extension for parallel query. 2016-06-07 11:26:41 -04:00
hstore Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
hstore_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
hstore_plpython Fix broken ruleutils support for function TRANSFORM clauses. 2021-01-25 13:03:12 -05:00
intagg Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
intarray Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
isn Fix typos in comments. 2017-02-06 11:34:15 +02:00
lo Fix bogus CALLED_AS_TRIGGER() defenses. 2020-04-03 11:24:56 -04:00
ltree Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
ltree_plpython Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
oid2name Report the true database name on connection errors 2021-01-26 16:42:13 -03:00
pageinspect Fix tuple_data_split() to not open a relation without any lock. 2018-10-01 11:51:07 -04:00
passwordcheck Fix handling of previous password hooks in passwordcheck 2019-08-01 09:38:20 +09:00
pg_buffercache pg_buffercache: Allow huge allocations. 2016-09-15 09:30:37 -04:00
pg_freespacemap Update pg_freespacemap extension for parallel query. 2016-06-09 17:18:16 -04:00
pg_prewarm Avoid using potentially-under-aligned page buffers. 2018-09-01 15:27:13 -04:00
pg_standby Fix new warnings from GCC 7 2017-05-16 08:52:39 -04:00
pg_stat_statements Fix typos in comments. 2017-02-06 11:34:15 +02:00
pg_trgm pg_trgm: fix crash in 2-item picksplit 2020-11-12 14:57:13 +00:00
pg_visibility Fix bugs in contrib/pg_visibility. 2016-10-01 16:32:55 -04:00
pgcrypto pgcrypto: avoid name conflicts with OpenSSL in one more case. 2021-06-23 19:24:36 -04:00
pgrowlocks Avoid holding a directory FD open across assorted SRF calls. 2020-03-16 21:05:56 -04:00
pgstattuple Minor fixes in contrib installation scripts. 2016-06-14 10:47:06 -04:00
postgres_fdw Update obsolete comment. 2021-03-30 13:00:08 +09:00
seg Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
sepgsql Fix cache reference leak in contrib/sepgsql. 2020-04-16 14:45:54 -04:00
spi Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
sslinfo Support OpenSSL 1.1.0. 2016-09-15 12:55:38 +03:00
start-scripts Provide modern examples of how to auto-start Postgres on macOS. 2017-11-17 12:47:21 -05:00
tablefunc Disallow null category in crosstab_hash 2019-12-23 13:33:57 -05:00
tcn Revert CREATE INDEX ... INCLUDING ... 2016-04-08 21:52:13 +03:00
test_decoding Improve display of query results in isolation tests. 2021-06-23 11:12:32 -04:00
tsearch2 Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
tsm_system_rows Update copyright for 2016 2016-01-02 13:33:40 -05:00
tsm_system_time Update copyright for 2016 2016-01-02 13:33:40 -05:00
unaccent Make contrib/unaccent's unaccent() function work when not in search path. 2018-09-06 10:49:45 -04:00
uuid-ossp Give a useful error message if uuid-ossp is built without preconfiguration. 2016-12-22 11:19:13 -05:00
vacuumlo Report the true database name on connection errors 2021-01-26 16:42:13 -03:00
xml2 Fix typos in comments. 2017-02-06 11:34:15 +02:00
contrib-global.mk Respect TEMP_CONFIG when pg_regress_check and friends are called 2016-02-27 12:28:21 -05:00
Makefile Bloom index contrib module 2016-04-01 16:42:24 +03:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00

The PostgreSQL contrib tree
---------------------------

This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree.  This does not preclude their
usefulness.

User documentation for each module appears in the main SGML
documentation.

When building from the source distribution, these modules are not
built automatically, unless you build the "world" target.  You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.

Some directories supply new user-defined functions, operators, or
types.  To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command.  In a fresh database,
you can simply do

    CREATE EXTENSION module_name;

See the PostgreSQL documentation for more information about this
procedure.