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Use an initdb-time test to see if the local version of getaddrinfo()

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chokes on IPv6 addresses, and comment out the IPv6 entry in the default
pg_hba.conf if so.  Per Andrew Dunstan.
This commit is contained in:
Tom Lane 2005-08-22 16:27:36 +00:00
parent d0096a41fa
commit f88e8070b7
1 changed files with 35 additions and 4 deletions
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39
src/bin/initdb/initdb.c
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@ -42,7 +42,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
* Portions taken from FreeBSD.
*
* $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.94 2005/08/02 15:16:27 tgl Exp $
* $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.95 2005/08/22 16:27:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -54,13 +54,13 @@
#include <unistd.h>
#include <locale.h>
#include <signal.h>
#include <errno.h>
#ifdef HAVE_LANGINFO_H
#include <langinfo.h>
#endif
#include "libpq/pqsignal.h"
#include "mb/pg_wchar.h"
#include "getaddrinfo.h"
#include "getopt_long.h"
#ifndef HAVE_INT_OPTRESET
@ -1210,11 +1210,42 @@ setup_config(void)
conflines = replace_token(conflines,"@remove-line-for-nolocal@","");
#endif
#ifndef HAVE_IPV6
#if defined(HAVE_IPV6) && defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
/*
* Probe to see if there is really any platform support for IPv6, and
* comment out the relevant pg_hba line if not. This avoids runtime
* warnings if getaddrinfo doesn't actually cope with IPv6. Particularly
* useful on Windows, where executables built on a machine with IPv6
* may have to run on a machine without.
*
* We don't bother with testing if we aren't using the system version
* of getaddrinfo, since we know our own version doesn't do IPv6.
*/
{
struct addrinfo *gai_result;
struct addrinfo hints;
/* for best results, this code should match parse_hba() */
hints.ai_flags = AI_NUMERICHOST;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = 0;
hints.ai_protocol = 0;
hints.ai_addrlen = 0;
hints.ai_canonname = NULL;
hints.ai_addr = NULL;
hints.ai_next = NULL;
if (getaddrinfo("::1", NULL, &hints, &gai_result) != 0)
conflines = replace_token(conflines,
"host all all ::1",
"#host all all ::1");
}
#else /* !HAVE_IPV6 etc */
/* If we didn't compile IPV6 support at all, always comment it out */
conflines = replace_token(conflines,
"host all all ::1",
"#host all all ::1");
#endif
#endif /* HAVE_IPV6 etc */
/* Replace default authentication methods */
conflines = replace_token(conflines,