13bba02271
As in commit 0a52d378b03b7d5a, avoid doing something that has undefined results according to the C standard, even though in practice there does not seem to be any problem with it. This fixes two places in numeric.c that demonstrably could call memcpy() with such arguments. I looked through that file and didn't see any other places with similar hazards; this is not to claim that there are not such places in other files. Per report from Piotr Stefaniak. Back-patch to 9.5 which is where the previous commit was added. We're more or less setting a precedent that we will not worry about this type of issue in pre-9.5 branches unless someone demonstrates a problem in the field.
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.