Treat ENOTDIR as ENOENT when looking for client certificate file

This makes it possible to use a libpq app with home directory set
to /dev/null, for example - treating it the same as if the file
doesn't exist (which it doesn't).

Per bug #6302, reported by Diego Elio Petteno

diff --git a/src/interfaces/libpq/fe-secure.c b/src/interfaces/libpq/fe-secure.c
index c6963bed9480f9fb61afc70c6e91b7583f9e0bfb..a0607ae84d6d7b62bd9cb61be646150509b11956 100644 (file)
--- a/src/interfaces/libpq/fe-secure.c
+++ b/src/interfaces/libpq/fe-secure.c
@@ -1013,7 +1013,7 @@ initialize_SSL(PGconn *conn)
                 * might or might not accept the connection.  Any other error,
                 * however, is grounds for complaint.
                 */
-               if (errno != ENOENT)
+               if (errno != ENOENT && errno != ENOTDIR)
                {
                        printfPQExpBuffer(&conn->errorMessage,
                           libpq_gettext("could not open certificate file \"%s\": %s\n"),