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(parent: c255148) | patch
pg_waldump: Fix error message for WAL files smaller than XLOG_BLCKSZ.
authorAndres Freund <andres@anarazel.de>
Fri, 25 Feb 2022 18:30:05 +0000 (10:30 -0800)
committerAndres Freund <andres@anarazel.de>
Fri, 25 Feb 2022 18:32:38 +0000 (10:32 -0800)
commit0b1020a96d8e14ba5c5fe22f825c3093160aa83b
tree1bd14454364df04aaab0bd79e0ea1addb2a51e31tree
parentc2551483e0f6855183ae43a74abb3e434803b907commit | diff
pg_waldump: Fix error message for WAL files smaller than XLOG_BLCKSZ.

When opening a WAL file smaller than XLOG_BLCKSZ (e.g. 0 bytes long) while
determining the wal_segment_size, pg_waldump checked errno, despite errno not
being set by the short read. Resulting in a bogus error message.

Author: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/20220214.181847.775024684568733277.horikyota.ntt@gmail.com
Backpatch: 11-, the bug was introducedin fc49e24fa
src/bin/pg_waldump/pg_waldump.c diff | blob | blame | history
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