[BUGS] BUG #2724: Could not check connection status with "ssl=on"

[Alexey Zayats]

The following bug has been logged online:

Bug reference:      2724
Logged by:          Alexey Zayats
Email address:      [EMAIL PROTECTED]
PostgreSQL version: 8.1.5
Operating system:   SuSE 10.0 Linux 2.6.13 x86-64
Description:        Could not check connection status with "ssl=on"
Details: 

I'm wrote a programm using libpq.
Postgres(8.1.5) build and configured with ssl(OpenSSL 0.9.7g 11 Apr 2005) 
support.

Os: SuSE Linux 10.0
Kernel: 2.6.13
Arch: x86-64

In case until postgresql backend restarted, all is work fine, but if it 
happens, i could not get correct connection status,
programm recieve SIGPIPE and crush.

I've got next backtrace from core file:
--------------------------
Program received signal SIGPIPE, Broken pipe.
[Switching to Thread 46912549615488 (LWP 28743)]
0x00002aaaad07ae32 in __write_nocancel () from /lib64/tls/libpthread.so.0
(gdb) bt
#0  0x00002aaaad07ae32 in __write_nocancel () from
/lib64/tls/libpthread.so.0
#1  0x00002aaaad9e2187 in BIO_sock_should_retry () 
from /usr/lib64/libcrypto.so.0.9.7
#2  0x00002aaaad9e0751 in BIO_write () from /usr/lib64/libcrypto.so.0.9.7
#3  0x00002aaaad82b8a4 in ssl3_change_cipher_state () 
from /usr/lib64/libssl.so.0.9.7
#4  0x00002aaaad82b9a2 in ssl3_dispatch_alert () 
from /usr/lib64/libssl.so.0.9.7
#5  0x00002aaaad82a084 in ssl3_shutdown () from /usr/lib64/libssl.so.0.9.7
#6  0x00002aaaaaec4095 in close_SSL () from /usr/local/lib/libpq.so.4
#7  0x00002aaaaaebd408 in pqReadData () from /usr/local/lib/libpq.so.4
#8  0x00002aaaaaebb132 in PQgetResult () from /usr/local/lib/libpq.so.4
#9  0x00002aaaaaebb20e in PQexecFinish () from /usr/local/lib/libpq.so.4
#10 0x00002aaaaabee6b4 in QPSQLResult::reset (this=0x840d10, 
[EMAIL PROTECTED]) at qsql_psql.cpp:332
#11 0x00002aaaaad4c014 in QSqlQuery::exec (this=0x7fffffcc17b0,  
[EMAIL PROTECTED]) at qsqlquery.cpp:355
--

Before any queries send, i'm using isOpen method that looks like:
--
bool QPSQLDriver::isOpen() const
{
        return PQstatus(d->connection) == CONNECTION_OK;
}
--

if "ssl=on", PQstatus(d->connection) always return CONNECTION_OK, even if
connection is closed by postgresql

if "ssl=off" in postgresql.conf, all wroks fine.
Using sigaction impossible, because i'm wrote on c++ with Qt library as a 
base. Qt library itself used libpq as interface to postgresql.

Is there a bug on libpq?

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