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pg_resetwal: Prevent division-by-zero errors

author Peter Eisentraut <peter_e@gmx.net>

2018年3月23日 14:10:49 +0000 (10:10 -0400)

committer Peter Eisentraut <peter_e@gmx.net>

2018年3月23日 14:14:25 +0000 (10:14 -0400)

commit f1a074b146c900bd439b6ef1953866f41b61a669

tree 74f406efef1cd8cadccb2c5c841abc712b5413b4 tree

parent 86f575948c773b0ec5b0f27066e37dd93a7f0a96 commit | diff

pg_resetwal: Prevent division-by-zero errors

Handle the case where the pg_control file specifies a WAL segment size
of 0 bytes. This would previously have led to a division by zero error.
Change this to assume the whole file is corrupt and go to guess
everything.

Discussion: https://www.postgresql.org/message-id/a6163ad7-cc99-fdd1-dfad-25df73032ab8%402ndquadrant.com

src/bin/pg_resetwal/pg_resetwal.c diff | blob | blame | history

src/bin/pg_resetwal/t/002_corrupted.pl [new file with mode: 0644] blob

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