pgwin32_unsetenv() (compatibility routine of unsetenv() on Windows) lacks the input validation that its sibling pgwin32_setenv() has. Without these checks, calling unsetenv() with incorrect names crashes on WIN32. However, invalid names should be handled, failing on EINVAL. This commit adds the same checks as setenv() to fail with EINVAL for a "name" set to NULL, an empty string, or if '=' is included in the value, per POSIX requirements. Like 7ca37fb0406b, backpatch down to v14. pgwin32_unsetenv() is defined on REL_13_STABLE, but with the branch going EOL soon and the lack of setenv() there for WIN32, nothing is done for v13. Author: Bryan Green <dbryan.green@gmail.com> Discussion: https://postgr.es/m/b6a1e52b-d808-4df7-87f7-2ff48d15003e@gmail.com Backpatch-through: 14
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/.