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Whenever this function is used with the FORMAT_MESSAGE_FROM_SYSTEM flag, it's good practice to include FORMAT_MESSAGE_IGNORE_INSERTS as well. Otherwise, if the message contains any %n insertion markers, the function will try to fetch argument strings to substitute --- which we are not passing, possibly leading to a crash. This is exactly analogous to the rule about not giving printf() a format string you're not in control of. Noted and patched by Christian Ullrich. Back-patch to all supported branches.
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/.