[pgpool-committers: 7773] 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_6_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=9a740334101f654df8708d1dff8742c2cb41387c

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(-)