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-rw-r--r--engines/e_chil.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/engines/e_chil.c b/engines/e_chil.c
index e1847622ea74..3a07076b4fef 100644
--- a/engines/e_chil.c
+++ b/engines/e_chil.c
@@ -1204,6 +1204,11 @@ static int hwcrhk_get_pass(const char *prompt_info,
pem_password_cb *callback = NULL;
void *callback_data = NULL;
UI_METHOD *ui_method = NULL;
+ /* Despite what the documentation says prompt_info can be
+ * an empty string.
+ */
+ if (prompt_info && !*prompt_info)
+ prompt_info = NULL;
if (cactx)
{
@@ -1305,8 +1310,10 @@ static int hwcrhk_insert_card(const char *prompt_info,
{
char answer;
char buf[BUFSIZ];
-
- if (wrong_info)
+ /* Despite what the documentation says wrong_info can be
+ * an empty string.
+ */
+ if (wrong_info && *wrong_info)
BIO_snprintf(buf, sizeof(buf)-1,
"Current card: \"%s\"\n", wrong_info);
ok = UI_dup_info_string(ui, buf);