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Ensure that pg_saslprep() initializes its output argument to NULL in all failure paths, and then remove the redundant initialization that some (not all) of its callers did. This does not fix any live bug, but it reduces the odds of future bugs of omission. Also add a comment about why the existing failure-path coding is adequate. Back-patch so as to keep the function's API consistent across branches, again to forestall future bug introduction. Patch by me, reviewed by Michael Paquier Discussion: https://postgr.es/m/16558.1536407783@sss.pgh.pa.us
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/.