diff --git a/src/backend/libpq/hba.c b/src/backend/libpq/hba.c
index cfacd208c6b..20470454c66 100644
--- a/src/backend/libpq/hba.c
+++ b/src/backend/libpq/hba.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.157 2006/11/05 22:42:08 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.157.2.1 2010/03/03 20:31:29 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -412,7 +412,7 @@ tokenize_file(const char *filename, FILE *file,
 
 	*lines = *line_nums = NIL;
 
-	while (!feof(file))
+	while (!feof(file) && !ferror(file))
 	{
 		buf = next_token_expand(filename, file);
 
diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index 4a0f86cbf0f..5412ee606ff 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.339.2.3 2007/10/09 15:03:31 mha Exp $
+ *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.339.2.4 2010/03/03 20:31:29 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -3637,7 +3637,7 @@ PasswordFromFile(char *hostname, char *port, char *dbname, char *username)
 	if (fp == NULL)
 		return NULL;
 
-	while (!feof(fp))
+	while (!feof(fp) && !ferror(fp))
 	{
 		char	   *t = buf,
 				   *ret;