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From: Peter Eisentraut <peter@eisentraut.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Fix inappropriate uses of atol()
Date: Sat, 10 Aug 2024 06:41:44 +0000
Message-ID: <E1scfnM-003XEf-NU@gemulon.postgresql.org> (raw)

Fix inappropriate uses of atol()

Some code using atol() would not work correctly if sizeof(long)==4:

- src/bin/pg_basebackup/pg_basebackup.c: Would miscount size of a
  tablespace over 2 TB.

- src/bin/pg_basebackup/streamutil.c: Would truncate a timeline ID
  beyond INT32_MAX.

- src/bin/pg_rewind/libpq_source.c: Would miscount size of files
  larger than 2 GB (but this currently cannot happen).

Replace these with atoll().

In one case, the use of atol() did not result in incorrect behavior
but seems inconsistent with related code:

- src/interfaces/ecpg/ecpglib/execute.c: Gratuitous, since it
  processes a value from pg_type.typlen, which is int16.

Replace this with atoi().

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://www.postgresql.org/message-id/flat/a52738ad-06bc-4d45-b59f-b38a8a89de49%40eisentraut.org

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/f5a1311fccd2ed24a9fb42aa47a17d1df7126039

Modified Files
--------------
src/bin/pg_basebackup/pg_basebackup.c | 2 +-
src/bin/pg_basebackup/streamutil.c    | 2 +-
src/bin/pg_rewind/libpq_source.c      | 2 +-
src/interfaces/ecpg/ecpglib/execute.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)



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