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Don't connect() to a wildcard address in test_postmaster_connection().

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At least OpenBSD, NetBSD, and Windows don't support it.  This repairs
pg_ctl for listen_addresses='0.0.0.0' and listen_addresses='::'.  Since
pg_ctl prefers to test a Unix-domain socket, Windows users are most
likely to need this change.  Back-patch to 9.1 (all supported versions).
This could change pg_ctl interaction with loopback-interface firewall
rules.  Therefore, in 9.4 and earlier (released branches), activate the
change only on known-affected platforms.

Reported (bug #13611) and designed by Kondo Yuta.
This commit is contained in:
Noah Misch 2015-11-08 17:28:53 -05:00
parent bfb10db81e
commit 99027350e7
1 changed files with 14 additions and 1 deletions
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15
src/bin/pg_ctl/pg_ctl.c
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@ -628,9 +628,22 @@ test_postmaster_connection(pgpid_t pm_pid, bool do_checkpoint)
return PQPING_NO_ATTEMPT; return PQPING_NO_ATTEMPT;
} }
/* If postmaster is listening on "*", use localhost */ /*
* Map listen-only addresses to counterparts usable
* for establishing a connection. connect() to "::"
* or "0.0.0.0" is not portable to OpenBSD 5.0 or to
* Windows Server 2008, and connect() to "::" is
* additionally not portable to NetBSD 6.0. (Cygwin
* does handle both addresses, though.)
*/
if (strcmp(host_str, "*") == 0) if (strcmp(host_str, "*") == 0)
strcpy(host_str, "localhost"); strcpy(host_str, "localhost");
#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(WIN32)
else if (strcmp(host_str, "0.0.0.0") == 0)
strcpy(host_str, "127.0.0.1");
else if (strcmp(host_str, "::") == 0)
strcpy(host_str, "::1");
#endif
/* /*
* We need to set connect_timeout otherwise on Windows * We need to set connect_timeout otherwise on Windows