libpq: Fix memory leak

If a client encoding is specified as a connection parameter (or
environment variable), internal storage allocated for it would never
be freed.

diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index 2c3d544df727a42fb5a584ba3158df5c5adc16fb..704885bbbed20e0baa273110a44a6541c682d68d 100644 (file)
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -2744,6 +2744,8 @@ freePGconn(PGconn *conn)
                free(conn->events[i].name);
        }
 
+       if (conn->client_encoding_initial)
+               free(conn->client_encoding_initial);
        if (conn->events)
                free(conn->events);
        if (conn->pghost)