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intoasc(), a wrapper for PGTYPESinterval_to_asc that converts an interval to its textual representation, used a plain memcpy() when copying its result. This could miss a zero-termination in the result string, leading to an incorrect result. The routines in informix.c do not provide the length of their result buffer, which would allow a replacement of strcpy() to safer strlcpy() calls, but this requires an ABI breakage and that cannot happen in back-branches. Author: Oleg Tselebrovskiy Reviewed-by: Ashutosh Bapat Discussion: https://postgr.es/m/bf47888585149f83b276861a1662f7e4@postgrespro.ru Backpatch-through: 12
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. Copyright and license information can be found in the file COPYRIGHT. General documentation about this version of PostgreSQL can be found at: https://www.postgresql.org/docs/devel/ In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/installation.html The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.