[pgpool-committers: 7774] pgpool: Fix maximum length of hostnames including domain name.

[Tatsuo Ishii]

Fix maximum length of hostnames including domain name.

The maximum length of hostnames was 128, which is not incorrect.
Moreover there were multiple places where the maximum length of hostname is defined.
So create unified definition of it in libpcp_ext.h.

Discussion: https://www.pgpool.net/pipermail/pgpool-hackers/2021-May/003904.html

Branch
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V3_7_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=38fbfb88531f8563b8d7f2e9e3508fd351754667

Modified Files
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src/include/pcp/libpcp_ext.h | 11 +++++++++--
src/include/pool_config.h    |  4 ++--
2 files changed, 11 insertions(+), 4 deletions(-)