ba6d9ee259
libpqwalreceiver parses the WAL flush location returned by
IDENTIFY_SYSTEM using sscanf("%X/%X") into uint32 values. This
accepts overlong components and trailing characters, potentially
producing a different LSN from the one supplied by the upstream server.
Use pg_parse_lsn() instead, requiring one to eight hexadecimal digits
per component and no trailing characters, as for pg_lsn input. Reject
malformed locations with the existing protocol violation error.
Suggested-by: Ayush Tiwari <ayushtiwari.slg01@gmail.com>
Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Jan Nidzwetzki <jan@planetscale.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/tencent_C6ED19DF1759CDD37E786F7EE0B5207D0009@qq.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/.