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Temporary fix for the problem that pg_stat_activity, inet_client_addr(),

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and inet_server_addr() fail if the client connected over a "scoped" IPv6
address.  In this case getnameinfo() will return a string ending with
a poorly-standardized "%something" zone specifier, which these functions
try to feed to network_in(), which won't take it.  So that we don't lose
functionality altogether, suppress the zone specifier before giving the
string to network_in().  Per report from Brian Hirt.

TODO: probably someday the inet type should support scoped IPv6 addresses,
and then this patch should be reverted.

Backpatch to 8.2 ... is it worth going further?
This commit is contained in:
Tom Lane
2007-05-17 23:31:49 +00:00
parent 3f186a2034
commit dbb769352d
3 changed files with 39 additions and 3 deletions
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4
src/backend/utils/adt/pgstatfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.41 2007/03/30 18:34:55 mha Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.42 2007/05/17 23:31:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -550,6 +550,8 @@ pg_stat_get_backend_client_addr(PG_FUNCTION_ARGS)
if (ret)
PG_RETURN_NULL();
clean_ipv6_addr(beentry->st_clientaddr.addr.ss_family, remote_host);
PG_RETURN_INET_P(DirectFunctionCall1(inet_in,
CStringGetDatum(remote_host)));
}