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26e9d4d4ef
elog.c has long had a private strerror wrapper that handles assorted possible failures or deficiencies of the platform's strerror. On Windows, it also knows how to translate Winsock error codes, which the native strerror does not. Move all this code into src/port/strerror.c and define strerror() as a macro that invokes it, so that both our frontend and backend code will have all of this behavior. I believe this constitutes an actual bug fix on Windows, since AFAICS our frontend code did not report Winsock error codes properly before this. However, the main point is to lay the groundwork for implementing %m in src/port/snprintf.c: the behavior we want %m to have is this one, not the native strerror's. Note that this throws away the prior use of src/port/strerror.c, which was to implement strerror() on platforms lacking it. That's been dead code for nigh twenty years now, since strerror() was already required by C89. We should likewise cause strerror_r to use this behavior, but I'll tackle that separately. Patch by me, reviewed by Michael Paquier Discussion: https://postgr.es/m/2975.1526862605@sss.pgh.pa.us |
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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: https://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 https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.