TTY_get() in crypto/ui/ui_openssl.c open_console() can also return errno 1 (EPERM, Linux)

Signed-off-by: NMaxim Zakharov <5158255+Maxime2@users.noreply.github.com>
Reviewed-by: NTomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11767)

crypto/ui/ui_openssl.c

@@ -435,6 +435,16 @@ static int open_console(UI *ui)
             is_a_tty = 0;
         else
 #  endif
+#  ifdef EPERM
+            /*
+             * Linux can return EPERM (Operation not permitted),
+             * e.g. if a daemon executes openssl via fork()+execve()
+             * This should be ok
+             */
+        if (errno == EPERM)
+            is_a_tty = 0;
+        else
+#  endif
 #  ifdef ENODEV
             /*
              * MacOS X returns ENODEV (Operation not supported by device),