[BUGS] libpq3 + ssl memory leak

[Olaf Hartmann]

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name               : Olaf Hartmann
Your email address      : [EMAIL PROTECTED]
System Configuration
---------------------
  Architecture (example: Intel Pentium)         : i386
  Operating System (example: Linux 2.0.26 ELF)  : linux-2.4.21

  PostgreSQL version (example: PostgreSQL-7.3.4): PostgreSQL-7.4

  Compiler used (example:  gcc 2.95.2)          : gcc 3.3.2

Please enter a FULL description of your problem:
------------------------------------------------
We expirience a memory leak with every connection when using an SSL 
encrypted TCP connection to connect a postgres database.
A simple code example is included in this mail. It simply opens and 
closes a database connection. (You also need a postgresql server set up 
for ssl.)

'valgrind' detects the main memory leak (which gets bigger with every 
connection) to be in libcrypto.so.0.9.7. But you can also verify the 
increased memory consumption using 'ps axl', if you add a 'sleep(..);' 
at the end of the program.

Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible:
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/*
 * begin leak.c
 */
#include <stdio.h>
#include <postgresql/libpq-fe.h>
int main()
{
  int i;
  PGconn *conn;
  for (i = 0; i < 10; i ++)
  {
    conn = PQconnectdb("host=... dbname=template1 ... requiressl=1");
    if (PQstatus(conn) == CONNECTION_BAD)
    {
      fprintf(stderr, "Error: %s", PQerrorMessage(conn));
      PQfinish(conn);
      exit(1);
    }
    PQfinish(conn);
  }
  return 0;
}
/*
 * end leak.c
 */
$ gcc leak.c -lpq -o leak 

$ valgrind --leak-check=yes --error-limit=no ./leak

If you know how this problem might be fixed, list the solution below:
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