9b4bf51690
Avoid null-pointer crash when considering a cursor declaration that's outside any C function (a case which is useless anyway). Ensure a cursor for a prepared statement is marked as initially not open. At worst, if we chanced to get not-already-zeroed memory from malloc(), this oversight would result in failing to issue a "cursor "foo" has been declared but not opened" warning that would have been appropriate. Avoid running off the end of the buffer when there are mismatched square brackets following a variable name. This could lead to SIGSEGV after reaching the end of memory. Given the lack of field complaints, none of these seem to be worth back-patching, but let's clean them up in HEAD. Per valgrind testing by Alexander Lakhin. Discussion: https://postgr.es/m/5f5bcecd-d7ec-b8c0-6c92-d1a7c6e0f639@gmail.com
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/.