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Michael Paquier 55fe26a4b5 Fix allocation logic of cryptohash context data with OpenSSL 
The allocation of the cryptohash context data when building with OpenSSL
was happening in the memory context of the caller of
pg_cryptohash_create(), which could lead to issues with resowner cleanup
if cascading resources are cleaned up on an error.  Like other
facilities using resowners, move the base allocation to TopMemoryContext
to ensure a correct cleanup on failure.

The resulting code gets simpler with this commit as the context data is
now hold by a unique opaque pointer, so as there is only one single
allocation done in TopMemoryContext.

After discussion, also change the cryptohash subroutines to return an
error if the caller provides NULL for the context data to ease error
detection on OOM.

Author: Heikki Linnakangas
Discussion: https://postgr.es/m/X9xbuEoiU3dlImfa@paquier.xyz
 		2021-01-07 10:21:02 +09:00
config Update copyright for 2021 2021-01-02 13:06:25 -05:00
contrib Test decoding of two-phase transactions during the build of a consistent snapshot. 2021-01-05 15:05:22 +05:30
doc Add idle_session_timeout. 2021-01-06 18:28:52 -05:00
src Fix allocation logic of cryptohash context data with OpenSSL 2021-01-07 10:21:02 +09:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.gitattributes gitattributes: Add new file 2019-11-12 08:13:55 +01:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
COPYRIGHT Update copyright for 2021 2021-01-02 13:06:25 -05:00
GNUmakefile.in Make install-tests target work with vpath builds 2020-05-31 18:33:00 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00
aclocal.m4 Remove configure-time probe for DocBook DTD. 2020-11-30 15:24:13 -05:00
configure Update copyright for 2021 2021-01-02 13:06:25 -05:00
configure.ac Update copyright for 2021 2021-01-02 13:06:25 -05:00

README 

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.