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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2022-06-06 11:20:21 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2022-06-06 11:20:31 -0400 |
| commit | a5dbca460ace7e89a607d43e206973efaee0ed19 (patch) | |
| tree | 60a028b2acb15ffea946aea1123c91dd5ad9d871 /src/tutorial/funcs.c | |
| parent | a04ccf6dfb4a15b9c279154b3366f8051de8b5d1 (diff) | |
| download | postgresql-a5dbca460ace7e89a607d43e206973efaee0ed19.tar.gz postgresql-a5dbca460ace7e89a607d43e206973efaee0ed19.zip | |
Don't fail on libpq-generated error reports in ecpg_raise_backend().
An error PGresult generated by libpq itself, such as a report of
connection loss, won't have broken-down error fields.
ecpg_raise_backend() blithely assumed that PG_DIAG_MESSAGE_PRIMARY
would always be present, and would end up passing a NULL string
pointer to snprintf when it isn't. That would typically crash
before 3779ac62d, and it would fail to provide a useful error report
in any case. Best practice is to substitute PQerrorMessage(conn)
in such cases, so do that.
Per bug #17421 from Masayuki Hirose. Back-patch to all supported
branches.
Discussion: https://postgr.es/m/17421-790ff887e3188874@postgresql.org
Diffstat (limited to 'src/tutorial/funcs.c')
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