diff --git a/src/backend/utils/mb/conv.c b/src/backend/utils/mb/conv.c
index ee9649f32d..1a4493c8e0 100644
--- a/src/backend/utils/mb/conv.c
+++ b/src/backend/utils/mb/conv.c
@@ -2,7 +2,7 @@
  * conversion between client encoding and server internal encoding
  * (currently mule internal code (mic) is used)
  * Tatsuo Ishii
- * $Id: conv.c,v 1.3 1998/09/01 04:33:21 momjian Exp $
+ * $Id: conv.c,v 1.4 1998/12/14 04:59:58 momjian Exp $
  */
 #include <stdio.h>
 #include <string.h>
@@ -487,7 +487,7 @@ mic2ascii(unsigned char *mic, unsigned char *p, int len)
 {
 	int			c1;
 
-	while (len > 0 && (c1 = *mic))
+	while (len-- > 0 && (c1 = *mic))
 	{
 		if (c1 > 0x7f)
 			printBogusChar(&mic, &p);
@@ -495,6 +495,7 @@ mic2ascii(unsigned char *mic, unsigned char *p, int len)
 		{						/* should be ASCII */
 			*p++ = c1;
 		}
+		mic++;
 	}
 	*p = '\0';
 }
diff --git a/src/bin/psql/psql.c b/src/bin/psql/psql.c
index a340c0a258..ace31f577c 100644
--- a/src/bin/psql/psql.c
+++ b/src/bin/psql/psql.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.164 1998/11/17 14:26:31 thomas Exp $
+ *	  $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.165 1998/12/14 04:59:58 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -84,6 +84,11 @@ char	   *__progname = "psql";
 
 #endif
 
+#ifdef MULTIBYTE
+/* flag to indicate if PGCLIENTENCODING has been set by a user */
+static	int	   has_client_encoding;
+#endif
+
 /* This prompt string is assumed to have at least 3 characters by code in MainLoop().
  * A character two characters from the end is replaced each time by a mode character.
  */
@@ -1485,6 +1490,18 @@ do_connect(const char *new_dbname,
 		/* FIXME: if changing user, ought to prompt for a new password? */
 		pwparam = PQpass(olddb);
 
+#ifdef MULTIBYTE
+		/* PGCLIENTENCODING may be set by the previous connection.
+		   if a user does not explicitly set PGCLIENTENCODING,
+		   we should discard PGCLIENTENCODING so that
+		   libpq could get the backend encoding as the default
+		   PGCLIENTENCODING value. -- 1998/12/12 Tatsuo Ishii */
+		   
+		if (!has_client_encoding) {
+			unsetenv("PGCLIENTENCODING");
+		}
+#endif
+
 		pset->db = PQsetdbLogin(PQhost(olddb), PQport(olddb),
 								NULL, NULL, dbparam, userparam, pwparam);
 
@@ -2754,6 +2771,10 @@ main(int argc, char **argv)
 	settings.getPassword = 0;
 #endif
 
+#ifdef MUTIBYTE
+	has_client_encoding = getenv("PGCLIENTENCODING");
+#endif
+
 	while ((c = getopt(argc, argv, "Aa:c:d:ef:F:lh:Hnso:p:qStT:ux")) != EOF)
 	{
 		switch (c)