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libpq can now talk to either 3.0 or 2.0 protocol servers. It first tries

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protocol 3, then falls back to 2 if postmaster rejects the startup packet
with an old-format error message.  A side benefit of the rewrite is that
SSL-encrypted connections can now be made without blocking.  (I think,
anyway, but do not have a good way to test.)
This commit is contained in:
Tom Lane
2003-06-08 17:43:00 +00:00
parent 152ce7a490
commit 6bdb7aa4db
13 changed files with 3334 additions and 1554 deletions
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17
src/backend/libpq/pqcomm.c
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@@ -30,7 +30,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.154 2003/05/29 19:15:34 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.155 2003/06/08 17:43:00 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -242,8 +242,7 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
{
elog(LOG, "server socket failure: getaddrinfo2(): %s",
gai_strerror(ret));
if (addrs != NULL)
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_ERROR;
}
@@ -251,7 +250,7 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
{
elog(LOG, "server socket failure: socket(): %s",
strerror(errno));
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_ERROR;
}
@@ -262,7 +261,7 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
{
elog(LOG, "server socket failure: setsockopt(SO_REUSEADDR): %s",
strerror(errno));
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_ERROR;
}
}
@@ -279,7 +278,7 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
sock_path);
else
elog(LOG, "\tIf not, wait a few seconds and retry.");
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_ERROR;
}
@@ -288,7 +287,7 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
{
if (Setup_AF_UNIX() != STATUS_OK)
{
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_ERROR;
}
}
@@ -308,12 +307,12 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
{
elog(LOG, "server socket failure: listen(): %s",
strerror(errno));
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_ERROR;
}
*fdP = fd;
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo2(addrs);
return STATUS_OK;
}